diff --git a/docs/assets/natural-gallery-js/natural-gallery.js b/docs/assets/natural-gallery-js/natural-gallery.js index 892dc0b..c057d3b 100644 --- a/docs/assets/natural-gallery-js/natural-gallery.js +++ b/docs/assets/natural-gallery-js/natural-gallery.js @@ -1,4 +1,4 @@ -var qt=Object.defineProperty,$t=Object.defineProperties;var te=Object.getOwnPropertyDescriptors;var Et=Object.getOwnPropertySymbols;var ee=Object.prototype.hasOwnProperty,ie=Object.prototype.propertyIsEnumerable;var H=Math.pow,Bt=(r,t,e)=>t in r?qt(r,t,{enumerable:!0,configurable:!0,writable:!0,value:e}):r[t]=e,O=(r,t)=>{for(var e in t||(t={}))ee.call(t,e)&&Bt(r,e,t[e]);if(Et)for(var e of Et(t))ie.call(t,e)&&Bt(r,e,t[e]);return r},Tt=(r,t)=>$t(r,te(t));function x(r,t,{signal:e,edges:i}={}){let o,s=null,n=i!=null&&i.includes("leading"),l=i==null||i.includes("trailing"),a=()=>{s!==null&&(r.apply(o,s),o=void 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l=n.zoomLevels.min,a=n.zoomLevels.max;if(!n.isZoomable()||s.mainScroll.isShifted())return;Ft(this._startZoomPoint,e,o),Ft(this._zoomPoint,t,i);let h=1/Q(e,o)*Q(t,i)*this._startZoomLevel;if(h>n.zoomLevels.initial+n.zoomLevels.initial/15&&(this._wasOverFitZoomLevel=!0),ha&&(h=a+(h-a)*de);n.pan.x=this._calculatePanForZoomLevel("x",h),n.pan.y=this._calculatePanForZoomLevel("y",h),n.setZoomLevel(h),n.applyCurrentZoomPan()}end(){let{pswp:t}=this.gestures,{currSlide:e}=t;(!e||e.currZoomLeveli.zoomLevels.max?s=i.zoomLevels.max:(n=!1,s=o);let l=e.bgOpacity,a=e.bgOpacity<1,h=g({x:0,y:0},i.pan),p=g({x:0,y:0},h);t&&(this._zoomPoint.x=0,this._zoomPoint.y=0,this._startZoomPoint.x=0,this._startZoomPoint.y=0,this._startZoomLevel=o,g(this._startPan,h)),n&&(p={x:this._calculatePanForZoomLevel("x",s),y:this._calculatePanForZoomLevel("y",s)}),i.setZoomLevel(s),p={x:i.bounds.correctPan("x",p.x),y:i.bounds.correctPan("y",p.y)},i.setZoomLevel(o);let d=!B(p,h);if(!d&&!n&&!a){i._setResolution(s),i.applyCurrentZoomPan();return}e.animations.stopAllPan(),e.animations.startSpring({isPan:!0,start:0,end:1e3,velocity:0,dampingRatio:1,naturalFrequency:40,onUpdate:c=>{if(c/=1e3,d||n){if(d&&(i.pan.x=h.x+(p.x-h.x)*c,i.pan.y=h.y+(p.y-h.y)*c),n){let m=o+(s-o)*c;i.setZoomLevel(m)}i.applyCurrentZoomPan()}a&&e.bgOpacity<1&&e.applyBgOpacity(P(l+(1-l)*c,0,1))},onComplete:()=>{i._setResolution(s),i.applyCurrentZoomPan()}})}};function Mt(r){return!!r.target.closest(".pswp__container")}var tt=class{constructor(t){this.gestures=t}click(t,e){let i=e.target.classList,o=i.contains("pswp__img"),s=i.contains("pswp__item")||i.contains("pswp__zoom-wrap");o?this._doClickOrTapAction("imageClick",t,e):s&&this._doClickOrTapAction("bgClick",t,e)}tap(t,e){Mt(e)&&this._doClickOrTapAction("tap",t,e)}doubleTap(t,e){Mt(e)&&this._doClickOrTapAction("doubleTap",t,e)}_doClickOrTapAction(t,e,i){var o;let{pswp:s}=this.gestures,{currSlide:n}=s,l=t+"Action",a=s.options[l];if(!s.dispatch(l,{point:e,originalEvent:i}).defaultPrevented){if(typeof a=="function"){a.call(s,e,i);return}switch(a){case"close":case"next":s[a]();break;case"zoom":n==null||n.toggleZoom(e);break;case"zoom-or-close":n!=null&&n.isZoomable()&&n.zoomLevels.secondary!==n.zoomLevels.initial?n.toggleZoom(e):s.options.clickToCloseNonZoomable&&s.close();break;case"toggle-controls":(o=this.gestures.pswp.element)===null||o===void 0||o.classList.toggle("pswp--ui-visible");break}}}},me=10,ge=300,ue=25,et=class{constructor(t){this.pswp=t,this.dragAxis=null,this.p1={x:0,y:0},this.p2={x:0,y:0},this.prevP1={x:0,y:0},this.prevP2={x:0,y:0},this.startP1={x:0,y:0},this.startP2={x:0,y:0},this.velocity={x:0,y:0},this._lastStartP1={x:0,y:0},this._intervalP1={x:0,y:0},this._numActivePoints=0,this._ongoingPointers=[],this._touchEventEnabled="ontouchstart"in window,this._pointerEventEnabled=!!window.PointerEvent,this.supportsTouch=this._touchEventEnabled||this._pointerEventEnabled&&navigator.maxTouchPoints>1,this._numActivePoints=0,this._intervalTime=0,this._velocityCalculated=!1,this.isMultitouch=!1,this.isDragging=!1,this.isZooming=!1,this.raf=null,this._tapTimer=null,this.supportsTouch||(t.options.allowPanToNext=!1),this.drag=new q(this),this.zoomLevels=new $(this),this.tapHandler=new tt(this),t.on("bindEvents",()=>{t.events.add(t.scrollWrap,"click",this._onClick.bind(this)),this._pointerEventEnabled?this._bindEvents("pointer","down","up","cancel"):this._touchEventEnabled?(this._bindEvents("touch","start","end","cancel"),t.scrollWrap&&(t.scrollWrap.ontouchmove=()=>{},t.scrollWrap.ontouchend=()=>{})):this._bindEvents("mouse","down","up")})}_bindEvents(t,e,i,o){let{pswp:s}=this,{events:n}=s,l=o?t+o:"";n.add(s.scrollWrap,t+e,this.onPointerDown.bind(this)),n.add(window,t+"move",this.onPointerMove.bind(this)),n.add(window,t+i,this.onPointerUp.bind(this)),l&&n.add(s.scrollWrap,l,this.onPointerUp.bind(this))}onPointerDown(t){let e=t.type==="mousedown"||t.pointerType==="mouse";if(e&&t.button>0)return;let{pswp:i}=this;if(!i.opener.isOpen){t.preventDefault();return}i.dispatch("pointerDown",{originalEvent:t}).defaultPrevented||(e&&(i.mouseDetected(),this._preventPointerEventBehaviour(t,"down")),i.animations.stopAll(),this._updatePoints(t,"down"),this._numActivePoints===1&&(this.dragAxis=null,g(this.startP1,this.p1)),this._numActivePoints>1?(this._clearTapTimer(),this.isMultitouch=!0):this.isMultitouch=!1)}onPointerMove(t){this._preventPointerEventBehaviour(t,"move"),this._numActivePoints&&(this._updatePoints(t,"move"),!this.pswp.dispatch("pointerMove",{originalEvent:t}).defaultPrevented&&(this._numActivePoints===1&&!this.isDragging?(this.dragAxis||this._calculateDragDirection(),this.dragAxis&&!this.isDragging&&(this.isZooming&&(this.isZooming=!1,this.zoomLevels.end()),this.isDragging=!0,this._clearTapTimer(),this._updateStartPoints(),this._intervalTime=Date.now(),this._velocityCalculated=!1,g(this._intervalP1,this.p1),this.velocity.x=0,this.velocity.y=0,this.drag.start(),this._rafStopLoop(),this._rafRenderLoop())):this._numActivePoints>1&&!this.isZooming&&(this._finishDrag(),this.isZooming=!0,this._updateStartPoints(),this.zoomLevels.start(),this._rafStopLoop(),this._rafRenderLoop())))}_finishDrag(){this.isDragging&&(this.isDragging=!1,this._velocityCalculated||this._updateVelocity(!0),this.drag.end(),this.dragAxis=null)}onPointerUp(t){this._numActivePoints&&(this._updatePoints(t,"up"),!this.pswp.dispatch("pointerUp",{originalEvent:t}).defaultPrevented&&(this._numActivePoints===0&&(this._rafStopLoop(),this.isDragging?this._finishDrag():!this.isZooming&&!this.isMultitouch&&this._finishTap(t)),this._numActivePoints<2&&this.isZooming&&(this.isZooming=!1,this.zoomLevels.end(),this._numActivePoints===1&&(this.dragAxis=null,this._updateStartPoints()))))}_rafRenderLoop(){(this.isDragging||this.isZooming)&&(this._updateVelocity(),this.isDragging?B(this.p1,this.prevP1)||this.drag.change():(!B(this.p1,this.prevP1)||!B(this.p2,this.prevP2))&&this.zoomLevels.change(),this._updatePrevPoints(),this.raf=requestAnimationFrame(this._rafRenderLoop.bind(this)))}_updateVelocity(t){let e=Date.now(),i=e-this._intervalTime;i<50&&!t||(this.velocity.x=this._getVelocity("x",i),this.velocity.y=this._getVelocity("y",i),this._intervalTime=e,g(this._intervalP1,this.p1),this._velocityCalculated=!0)}_finishTap(t){let{mainScroll:e}=this.pswp;if(e.isShifted()){e.moveIndexBy(0,!0);return}if(t.type.indexOf("cancel")>0)return;if(t.type==="mouseup"||t.pointerType==="mouse"){this.tapHandler.click(this.startP1,t);return}let i=this.pswp.options.doubleTapAction?ge:0;this._tapTimer?(this._clearTapTimer(),Q(this._lastStartP1,this.startP1){this.tapHandler.tap(this.startP1,t),this._clearTapTimer()},i))}_clearTapTimer(){this._tapTimer&&(clearTimeout(this._tapTimer),this._tapTimer=null)}_getVelocity(t,e){let i=this.p1[t]-this._intervalP1[t];return Math.abs(i)>1&&e>5?i/e:0}_rafStopLoop(){this.raf&&(cancelAnimationFrame(this.raf),this.raf=null)}_preventPointerEventBehaviour(t,e){this.pswp.applyFilters("preventPointerEvent",!0,t,e)&&t.preventDefault()}_updatePoints(t,e){if(this._pointerEventEnabled){let i=t,o=this._ongoingPointers.findIndex(s=>s.id===i.pointerId);e==="up"&&o>-1?this._ongoingPointers.splice(o,1):e==="down"&&o===-1?this._ongoingPointers.push(this._convertEventPosToPoint(i,{x:0,y:0})):o>-1&&this._convertEventPosToPoint(i,this._ongoingPointers[o]),this._numActivePoints=this._ongoingPointers.length,this._numActivePoints>0&&g(this.p1,this._ongoingPointers[0]),this._numActivePoints>1&&g(this.p2,this._ongoingPointers[1])}else{let i=t;this._numActivePoints=0,i.type.indexOf("touch")>-1?i.touches&&i.touches.length>0&&(this._convertEventPosToPoint(i.touches[0],this.p1),this._numActivePoints++,i.touches.length>1&&(this._convertEventPosToPoint(i.touches[1],this.p2),this._numActivePoints++)):(this._convertEventPosToPoint(t,this.p1),e==="up"?this._numActivePoints=0:this._numActivePoints++)}}_updatePrevPoints(){g(this.prevP1,this.p1),g(this.prevP2,this.p2)}_updateStartPoints(){g(this.startP1,this.p1),g(this.startP2,this.p2),this._updatePrevPoints()}_calculateDragDirection(){if(this.pswp.mainScroll.isShifted())this.dragAxis="x";else{let t=Math.abs(this.p1.x-this.startP1.x)-Math.abs(this.p1.y-this.startP1.y);if(t!==0){let e=t>0?"x":"y";Math.abs(this.p1[e]-this.startP1[e])>=me&&(this.dragAxis=e)}}}_convertEventPosToPoint(t,e){return e.x=t.pageX-this.pswp.offset.x,e.y=t.pageY-this.pswp.offset.y,"pointerId"in t?e.id=t.pointerId:t.identifier!==void 0&&(e.id=t.identifier),e}_onClick(t){this.pswp.mainScroll.isShifted()&&(t.preventDefault(),t.stopPropagation())}},fe=.35,it=class{constructor(t){this.pswp=t,this.x=0,this.slideWidth=0,this._currPositionIndex=0,this._prevPositionIndex=0,this._containerShiftIndex=-1,this.itemHolders=[]}resize(t){let{pswp:e}=this,i=Math.round(e.viewportSize.x+e.viewportSize.x*e.options.spacing),o=i!==this.slideWidth;o&&(this.slideWidth=i,this.moveTo(this.getCurrSlideX())),this.itemHolders.forEach((s,n)=>{o&&v(s.el,(n+this._containerShiftIndex)*this.slideWidth),t&&s.slide&&s.slide.resize()})}resetPosition(){this._currPositionIndex=0,this._prevPositionIndex=0,this.slideWidth=0,this._containerShiftIndex=-1}appendHolders(){this.itemHolders=[];for(let t=0;t<3;t++){let e=I("pswp__item","div",this.pswp.container);e.setAttribute("role","group"),e.setAttribute("aria-roledescription","slide"),e.setAttribute("aria-hidden","true"),e.style.display=t===1?"block":"none",this.itemHolders.push({el:e})}}canBeSwiped(){return this.pswp.getNumItems()>1}moveIndexBy(t,e,i){let{pswp:o}=this,s=o.potentialIndex+t,n=o.getNumItems();if(o.canLoop()){s=o.getLoopedIndex(s);let a=(t+n)%n;a<=n/2?t=a:t=a-n}else s<0?s=0:s>=n&&(s=n-1),t=s-o.potentialIndex;o.potentialIndex=s,this._currPositionIndex-=t,o.animations.stopMainScroll();let l=this.getCurrSlideX();if(!e)this.moveTo(l),this.updateCurrItem();else{o.animations.startSpring({isMainScroll:!0,start:this.x,end:l,velocity:i||0,naturalFrequency:30,dampingRatio:1,onUpdate:h=>{this.moveTo(h)},onComplete:()=>{this.updateCurrItem(),o.appendHeavy()}});let a=o.potentialIndex-o.currIndex;if(o.canLoop()){let h=(a+n)%n;h<=n/2?a=h:a=h-n}Math.abs(a)>1&&this.updateCurrItem()}return!!t}getCurrSlideX(){return this.slideWidth*this._currPositionIndex}isShifted(){return this.x!==this.getCurrSlideX()}updateCurrItem(){var t;let{pswp:e}=this,i=this._prevPositionIndex-this._currPositionIndex;if(!i)return;this._prevPositionIndex=this._currPositionIndex,e.currIndex=e.potentialIndex;let o=Math.abs(i),s;o>=3&&(this._containerShiftIndex+=i+(i>0?-3:3),o=3,this.itemHolders.forEach(n=>{var l;(l=n.slide)===null||l===void 0||l.destroy(),n.slide=void 0}));for(let n=0;n0?(s=this.itemHolders.shift(),s&&(this.itemHolders[2]=s,this._containerShiftIndex++,v(s.el,(this._containerShiftIndex+2)*this.slideWidth),e.setContent(s,e.currIndex-o+n+2))):(s=this.itemHolders.pop(),s&&(this.itemHolders.unshift(s),this._containerShiftIndex--,v(s.el,this._containerShiftIndex*this.slideWidth),e.setContent(s,e.currIndex+o-n-2)));Math.abs(this._containerShiftIndex)>50&&!this.isShifted()&&(this.resetPosition(),this.resize()),e.animations.stopAllPan(),this.itemHolders.forEach((n,l)=>{n.slide&&n.slide.setIsActive(l===1)}),e.currSlide=(t=this.itemHolders[1])===null||t===void 0?void 0:t.slide,e.contentLoader.updateLazy(i),e.currSlide&&e.currSlide.applyCurrentZoomPan(),e.dispatch("change")}moveTo(t,e){if(!this.pswp.canLoop()&&e){let i=(this.slideWidth*this._currPositionIndex-t)/this.slideWidth;i+=this.pswp.currIndex;let o=Math.round(t-this.x);(i<0&&o>0||i>=this.pswp.getNumItems()-1&&o<0)&&(t=this.x+o*fe)}this.x=t,this.pswp.container&&v(this.pswp.container,t),this.pswp.dispatch("moveMainScroll",{x:t,dragging:e!=null?e:!1})}},Ie={Escape:27,z:90,ArrowLeft:37,ArrowUp:38,ArrowRight:39,ArrowDown:40,Tab:9},y=(r,t)=>t?r:Ie[r],ot=class{constructor(t){this.pswp=t,this._wasFocused=!1,t.on("bindEvents",()=>{t.options.trapFocus&&(t.options.initialPointerPos||this._focusRoot(),t.events.add(document,"focusin",this._onFocusIn.bind(this))),t.events.add(document,"keydown",this._onKeyDown.bind(this))});let e=document.activeElement;t.on("destroy",()=>{t.options.returnFocus&&e&&this._wasFocused&&e.focus()})}_focusRoot(){!this._wasFocused&&this.pswp.element&&(this.pswp.element.focus(),this._wasFocused=!0)}_onKeyDown(t){let{pswp:e}=this;if(e.dispatch("keydown",{originalEvent:t}).defaultPrevented||ne(t))return;let i,o,s=!1,n="key"in t;switch(n?t.key:t.keyCode){case y("Escape",n):e.options.escKey&&(i="close");break;case 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i=0,o;e/=1e3;let s=H(Math.E,-this._dampingRatio*this._naturalFrequency*e);if(this._dampingRatio===1)o=this.velocity+this._naturalFrequency*t,i=(t+o*e)*s,this.velocity=i*-this._naturalFrequency+o*s;else if(this._dampingRatio<1){o=1/this._dampedFrequency*(this._dampingRatio*this._naturalFrequency*t+this.velocity);let n=Math.cos(this._dampedFrequency*e),l=Math.sin(this._dampedFrequency*e);i=s*(t*n+o*l),this.velocity=i*-this._naturalFrequency*this._dampingRatio+s*(-this._dampedFrequency*t*l+this._dampedFrequency*o*n)}return i}},nt=class{constructor(t){this.props=t,this._raf=0;let{start:e,end:i,velocity:o,onUpdate:s,onComplete:n,onFinish:l=()=>{},dampingRatio:a,naturalFrequency:h}=t;this.onFinish=l;let p=new rt(o,a,h),d=Date.now(),c=e-i,m=()=>{this._raf&&(c=p.easeFrame(c,Date.now()-d),Math.abs(c)<1&&Math.abs(p.velocity)<50?(s(i),n&&n(),this.onFinish()):(d=Date.now(),s(c+i),this._raf=requestAnimationFrame(m)))};this._raf=requestAnimationFrame(m)}destroy(){this._raf>=0&&cancelAnimationFrame(this._raf),this._raf=0}},lt=class{constructor(){this.activeAnimations=[]}startSpring(t){this._start(t,!0)}startTransition(t){this._start(t)}_start(t,e){let i=e?new nt(t):new st(t);return this.activeAnimations.push(i),i.onFinish=()=>this.stop(i),i}stop(t){t.destroy();let e=this.activeAnimations.indexOf(t);e>-1&&this.activeAnimations.splice(e,1)}stopAll(){this.activeAnimations.forEach(t=>{t.destroy()}),this.activeAnimations=[]}stopAllPan(){this.activeAnimations=this.activeAnimations.filter(t=>t.props.isPan?(t.destroy(),!1):!0)}stopMainScroll(){this.activeAnimations=this.activeAnimations.filter(t=>t.props.isMainScroll?(t.destroy(),!1):!0)}isPanRunning(){return this.activeAnimations.some(t=>t.props.isPan)}},at=class{constructor(t){this.pswp=t,t.events.add(t.element,"wheel",this._onWheel.bind(this))}_onWheel(t){t.preventDefault();let{currSlide:e}=this.pswp,{deltaX:i,deltaY:o}=t;if(e&&!this.pswp.dispatch("wheel",{originalEvent:t}).defaultPrevented)if(t.ctrlKey||this.pswp.options.wheelToZoom){if(e.isZoomable()){let s=-o;t.deltaMode===1?s*=.05:s*=t.deltaMode?1:.002,s=H(2,s);let n=e.currZoomLevel*s;e.zoomTo(n,{x:t.clientX,y:t.clientY})}}else e.isPannable()&&(t.deltaMode===1&&(i*=18,o*=18),e.panTo(e.pan.x-i,e.pan.y-o))}};function xe(r){if(typeof r=="string")return r;if(!r||!r.isCustomSVG)return"";let t=r,e='",e}var ht=class{constructor(t,e){var i;let o=e.name||e.className,s=e.html;if(t.options[o]===!1)return;typeof t.options[o+"SVG"]=="string"&&(s=t.options[o+"SVG"]),t.dispatch("uiElementCreate",{data:e});let n="";e.isButton?(n+="pswp__button ",n+=e.className||`pswp__button--${e.name}`):n+=e.className||`pswp__${e.name}`;let l=e.isButton?e.tagName||"button":e.tagName||"div";l=l.toLowerCase();let a=I(n,l);if(e.isButton){l==="button"&&(a.type="button");let{title:d}=e,{ariaLabel:c}=e;typeof t.options[o+"Title"]=="string"&&(d=t.options[o+"Title"]),d&&(a.title=d);let m=c||d;m&&a.setAttribute("aria-label",m)}a.innerHTML=xe(s),e.onInit&&e.onInit(a,t),e.onClick&&(a.onclick=d=>{typeof e.onClick=="string"?t[e.onClick]():typeof e.onClick=="function"&&e.onClick(d,a,t)});let h=e.appendTo||"bar",p=t.element;h==="bar"?(t.topBar||(t.topBar=I("pswp__top-bar pswp__hide-on-close","div",t.scrollWrap)),p=t.topBar):(a.classList.add("pswp__hide-on-close"),h==="wrapper"&&(p=t.scrollWrap)),(i=p)===null||i===void 0||i.appendChild(t.applyFilters("uiElement",a,e))}};function Xt(r,t,e){r.classList.add("pswp__button--arrow"),r.setAttribute("aria-controls","pswp__items"),t.on("change",()=>{t.options.loop||(e?r.disabled=!(t.currIndex0))})}var ye={name:"arrowPrev",className:"pswp__button--arrow--prev",title:"Previous",order:10,isButton:!0,appendTo:"wrapper",html:{isCustomSVG:!0,size:60,inner:'',outlineID:"pswp__icn-arrow"},onClick:"prev",onInit:Xt},ve={name:"arrowNext",className:"pswp__button--arrow--next",title:"Next",order:11,isButton:!0,appendTo:"wrapper",html:{isCustomSVG:!0,size:60,inner:'',outlineID:"pswp__icn-arrow"},onClick:"next",onInit:(r,t)=>{Xt(r,t,!0)}},we={name:"close",title:"Close",order:20,isButton:!0,html:{isCustomSVG:!0,inner:'',outlineID:"pswp__icn-close"},onClick:"close"},_e={name:"zoom",title:"Zoom",order:10,isButton:!0,html:{isCustomSVG:!0,inner:'',outlineID:"pswp__icn-zoom"},onClick:"toggleZoom"},Se={name:"preloader",appendTo:"bar",order:7,html:{isCustomSVG:!0,inner:'',outlineID:"pswp__icn-loading"},onInit:(r,t)=>{let e,i=null,o=(l,a)=>{r.classList.toggle("pswp__preloader--"+l,a)},s=l=>{e!==l&&(e=l,o("active",l))},n=()=>{var l;if(!((l=t.currSlide)!==null&&l!==void 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0||s.sort((l,a)=>l.priority-a.priority),(n=this.pswp)===null||n===void 0||n.addFilter(t,e,i)}removeFilter(t,e){this._filters[t]&&(this._filters[t]=this._filters[t].filter(i=>i.fn!==e)),this.pswp&&this.pswp.removeFilter(t,e)}applyFilters(t,...e){var i;return(i=this._filters[t])===null||i===void 0||i.forEach(o=>{e[0]=o.fn.apply(this,e)}),e[0]}on(t,e){var i,o;this._listeners[t]||(this._listeners[t]=[]),(i=this._listeners[t])===null||i===void 0||i.push(e),(o=this.pswp)===null||o===void 0||o.on(t,e)}off(t,e){var i;this._listeners[t]&&(this._listeners[t]=this._listeners[t].filter(o=>e!==o)),(i=this.pswp)===null||i===void 0||i.off(t,e)}dispatch(t,e){var i;if(this.pswp)return this.pswp.dispatch(t,e);let o=new dt(t,e);return(i=this._listeners[t])===null||i===void 0||i.forEach(s=>{s.call(this,o)}),o}},mt=class{constructor(t,e){if(this.element=I("pswp__img pswp__img--placeholder",t?"img":"div",e),t){let i=this.element;i.decoding="async",i.alt="",i.src=t,i.setAttribute("role","presentation")}this.element.setAttribute("aria-hidden","true")}setDisplayedSize(t,e){this.element&&(this.element.tagName==="IMG"?(j(this.element,250,"auto"),this.element.style.transformOrigin="0 0",this.element.style.transform=T(0,0,t/250)):j(this.element,t,e))}destroy(){var t;(t=this.element)!==null&&t!==void 0&&t.parentNode&&this.element.remove(),this.element=null}},gt=class{constructor(t,e,i){this.instance=e,this.data=t,this.index=i,this.element=void 0,this.placeholder=void 0,this.slide=void 0,this.displayedImageWidth=0,this.displayedImageHeight=0,this.width=Number(this.data.w)||Number(this.data.width)||0,this.height=Number(this.data.h)||Number(this.data.height)||0,this.isAttached=!1,this.hasSlide=!1,this.isDecoding=!1,this.state=C.IDLE,this.data.type?this.type=this.data.type:this.data.src?this.type="image":this.type="html",this.instance.dispatch("contentInit",{content:this})}removePlaceholder(){this.placeholder&&!this.keepPlaceholder()&&setTimeout(()=>{this.placeholder&&(this.placeholder.destroy(),this.placeholder=void 0)},1e3)}load(t,e){if(this.slide&&this.usePlaceholder())if(this.placeholder){let i=this.placeholder.element;i&&!i.parentElement&&this.slide.container.prepend(i)}else{let i=this.instance.applyFilters("placeholderSrc",this.data.msrc&&this.slide.isFirstSlide?this.data.msrc:!1,this);this.placeholder=new mt(i,this.slide.container)}this.element&&!e||this.instance.dispatch("contentLoad",{content:this,isLazy:t}).defaultPrevented||(this.isImageContent()?(this.element=I("pswp__img","img"),this.displayedImageWidth&&this.loadImage(t)):(this.element=I("pswp__content","div"),this.element.innerHTML=this.data.html||""),e&&this.slide&&this.slide.updateContentSize(!0))}loadImage(t){var e,i;if(!this.isImageContent()||!this.element||this.instance.dispatch("contentLoadImage",{content:this,isLazy:t}).defaultPrevented)return;let o=this.element;this.updateSrcsetSizes(),this.data.srcset&&(o.srcset=this.data.srcset),o.src=(e=this.data.src)!==null&&e!==void 0?e:"",o.alt=(i=this.data.alt)!==null&&i!==void 0?i:"",this.state=C.LOADING,o.complete?this.onLoaded():(o.onload=()=>{this.onLoaded()},o.onerror=()=>{this.onError()})}setSlide(t){this.slide=t,this.hasSlide=!0,this.instance=t.pswp}onLoaded(){this.state=C.LOADED,this.slide&&this.element&&(this.instance.dispatch("loadComplete",{slide:this.slide,content:this}),this.slide.isActive&&this.slide.heavyAppended&&!this.element.parentNode&&(this.append(),this.slide.updateContentSize(!0)),(this.state===C.LOADED||this.state===C.ERROR)&&this.removePlaceholder())}onError(){this.state=C.ERROR,this.slide&&(this.displayError(),this.instance.dispatch("loadComplete",{slide:this.slide,isError:!0,content:this}),this.instance.dispatch("loadError",{slide:this.slide,content:this}))}isLoading(){return this.instance.applyFilters("isContentLoading",this.state===C.LOADING,this)}isError(){return this.state===C.ERROR}isImageContent(){return this.type==="image"}setDisplayedSize(t,e){if(this.element&&(this.placeholder&&this.placeholder.setDisplayedSize(t,e),!this.instance.dispatch("contentResize",{content:this,width:t,height:e}).defaultPrevented&&(j(this.element,t,e),this.isImageContent()&&!this.isError()))){let i=!this.displayedImageWidth&&t;this.displayedImageWidth=t,this.displayedImageHeight=e,i?this.loadImage(!1):this.updateSrcsetSizes(),this.slide&&this.instance.dispatch("imageSizeChange",{slide:this.slide,width:t,height:e,content:this})}}isZoomable(){return this.instance.applyFilters("isContentZoomable",this.isImageContent()&&this.state!==C.ERROR,this)}updateSrcsetSizes(){if(!this.isImageContent()||!this.element||!this.data.srcset)return;let t=this.element,e=this.instance.applyFilters("srcsetSizesWidth",this.displayedImageWidth,this);(!t.dataset.largestUsedSize||e>parseInt(t.dataset.largestUsedSize,10))&&(t.sizes=e+"px",t.dataset.largestUsedSize=String(e))}usePlaceholder(){return this.instance.applyFilters("useContentPlaceholder",this.isImageContent(),this)}lazyLoad(){this.instance.dispatch("contentLazyLoad",{content:this}).defaultPrevented||this.load(!0)}keepPlaceholder(){return this.instance.applyFilters("isKeepingPlaceholder",this.isLoading(),this)}destroy(){this.hasSlide=!1,this.slide=void 0,!this.instance.dispatch("contentDestroy",{content:this}).defaultPrevented&&(this.remove(),this.placeholder&&(this.placeholder.destroy(),this.placeholder=void 0),this.isImageContent()&&this.element&&(this.element.onload=null,this.element.onerror=null,this.element=void 0))}displayError(){if(this.slide){var t,e;let i=I("pswp__error-msg","div");i.innerText=(t=(e=this.instance.options)===null||e===void 0?void 0:e.errorMsg)!==null&&t!==void 0?t:"",i=this.instance.applyFilters("contentErrorElement",i,this),this.element=I("pswp__content pswp__error-msg-container","div"),this.element.appendChild(i),this.slide.container.innerText="",this.slide.container.appendChild(this.element),this.slide.updateContentSize(!0),this.removePlaceholder()}}append(){if(this.isAttached||!this.element)return;if(this.isAttached=!0,this.state===C.ERROR){this.displayError();return}if(this.instance.dispatch("contentAppend",{content:this}).defaultPrevented)return;let t="decode"in this.element;this.isImageContent()?t&&this.slide&&(!this.slide.isActive||Pt())?(this.isDecoding=!0,this.element.decode().catch(()=>{}).finally(()=>{this.isDecoding=!1,this.appendImage()})):this.appendImage():this.slide&&!this.element.parentNode&&this.slide.container.appendChild(this.element)}activate(){this.instance.dispatch("contentActivate",{content:this}).defaultPrevented||!this.slide||(this.isImageContent()&&this.isDecoding&&!Pt()?this.appendImage():this.isError()&&this.load(!1,!0),this.slide.holderElement&&this.slide.holderElement.setAttribute("aria-hidden","false"))}deactivate(){this.instance.dispatch("contentDeactivate",{content:this}),this.slide&&this.slide.holderElement&&this.slide.holderElement.setAttribute("aria-hidden","true")}remove(){this.isAttached=!1,!this.instance.dispatch("contentRemove",{content:this}).defaultPrevented&&(this.element&&this.element.parentNode&&this.element.remove(),this.placeholder&&this.placeholder.element&&this.placeholder.element.remove())}appendImage(){this.isAttached&&(this.instance.dispatch("contentAppendImage",{content:this}).defaultPrevented||(this.slide&&this.element&&!this.element.parentNode&&this.slide.container.appendChild(this.element),(this.state===C.LOADED||this.state===C.ERROR)&&this.removePlaceholder()))}},Te=5;function Nt(r,t,e){let i=t.createContentFromData(r,e),o,{options:s}=t;if(s){o=new F(s,r,-1);let n;t.pswp?n=t.pswp.viewportSize:n=Vt(s,t);let l=Ht(s,n,r,e);o.update(i.width,i.height,l)}return i.lazyLoad(),o&&i.setDisplayedSize(Math.ceil(i.width*o.initial),Math.ceil(i.height*o.initial)),i}function Pe(r,t){let e=t.getItemData(r);if(!t.dispatch("lazyLoadSlide",{index:r,itemData:e}).defaultPrevented)return Nt(e,t,r)}var ut=class{constructor(t){this.pswp=t,this.limit=Math.max(t.options.preload[0]+t.options.preload[1]+1,Te),this._cachedItems=[]}updateLazy(t){let{pswp:e}=this;if(e.dispatch("lazyLoad").defaultPrevented)return;let{preload:i}=e.options,o=t===void 0?!0:t>=0,s;for(s=0;s<=i[1];s++)this.loadSlideByIndex(e.currIndex+(o?s:-s));for(s=1;s<=i[0];s++)this.loadSlideByIndex(e.currIndex+(o?-s:s))}loadSlideByIndex(t){let e=this.pswp.getLoopedIndex(t),i=this.getContentByIndex(e);i||(i=Pe(e,this.pswp),i&&this.addToCache(i))}getContentBySlide(t){let e=this.getContentByIndex(t.index);return e||(e=this.pswp.createContentFromData(t.data,t.index),this.addToCache(e)),e.setSlide(t),e}addToCache(t){if(this.removeByIndex(t.index),this._cachedItems.push(t),this._cachedItems.length>this.limit){let e=this._cachedItems.findIndex(i=>!i.isAttached&&!i.hasSlide);e!==-1&&this._cachedItems.splice(e,1)[0].destroy()}}removeByIndex(t){let e=this._cachedItems.findIndex(i=>i.index===t);e!==-1&&this._cachedItems.splice(e,1)}getContentByIndex(t){return this._cachedItems.find(e=>e.index===t)}destroy(){this._cachedItems.forEach(t=>t.destroy()),this._cachedItems=[]}},ft=class extends ct{getNumItems(){var t;let e=0,i=(t=this.options)===null||t===void 0?void 0:t.dataSource;i&&"length"in i?e=i.length:i&&"gallery"in i&&(i.items||(i.items=this._getGalleryDOMElements(i.gallery)),i.items&&(e=i.items.length));let o=this.dispatch("numItems",{dataSource:i,numItems:e});return this.applyFilters("numItems",o.numItems,i)}createContentFromData(t,e){return new gt(t,this,e)}getItemData(t){var e;let i=(e=this.options)===null||e===void 0?void 0:e.dataSource,o={};Array.isArray(i)?o=i[t]:i&&"gallery"in i&&(i.items||(i.items=this._getGalleryDOMElements(i.gallery)),o=i.items[t]);let s=o;s instanceof Element&&(s=this._domElementToItemData(s));let n=this.dispatch("itemData",{itemData:s||{},index:t});return this.applyFilters("itemData",n.itemData,t)}_getGalleryDOMElements(t){var e,i;return(e=this.options)!==null&&e!==void 0&&e.children||(i=this.options)!==null&&i!==void 0&&i.childSelector?le(this.options.children,this.options.childSelector,t)||[]:[t]}_domElementToItemData(t){let e={element:t},i=t.tagName==="A"?t:t.querySelector("a");if(i){e.src=i.dataset.pswpSrc||i.href,i.dataset.pswpSrcset&&(e.srcset=i.dataset.pswpSrcset),e.width=i.dataset.pswpWidth?parseInt(i.dataset.pswpWidth,10):0,e.height=i.dataset.pswpHeight?parseInt(i.dataset.pswpHeight,10):0,e.w=e.width,e.h=e.height,i.dataset.pswpType&&(e.type=i.dataset.pswpType);let s=t.querySelector("img");if(s){var o;e.msrc=s.currentSrc||s.src,e.alt=(o=s.getAttribute("alt"))!==null&&o!==void 0?o:""}(i.dataset.pswpCropped||i.dataset.cropped)&&(e.thumbCropped=!0)}return this.applyFilters("domItemData",e,t,i)}lazyLoadData(t,e){return Nt(t,this,e)}},L=.003,It=class{constructor(t){this.pswp=t,this.isClosed=!0,this.isOpen=!1,this.isClosing=!1,this.isOpening=!1,this._duration=void 0,this._useAnimation=!1,this._croppedZoom=!1,this._animateRootOpacity=!1,this._animateBgOpacity=!1,this._placeholder=void 0,this._opacityElement=void 0,this._cropContainer1=void 0,this._cropContainer2=void 0,this._thumbBounds=void 0,this._prepareOpen=this._prepareOpen.bind(this),t.on("firstZoomPan",this._prepareOpen)}open(){this._prepareOpen(),this._start()}close(){if(this.isClosed||this.isClosing||this.isOpening)return;let t=this.pswp.currSlide;this.isOpen=!1,this.isOpening=!1,this.isClosing=!0,this._duration=this.pswp.options.hideAnimationDuration,t&&t.currZoomLevel*t.width>=this.pswp.options.maxWidthToAnimate&&(this._duration=0),this._applyStartProps(),setTimeout(()=>{this._start()},this._croppedZoom?30:0)}_prepareOpen(){if(this.pswp.off("firstZoomPan",this._prepareOpen),!this.isOpening){let t=this.pswp.currSlide;this.isOpening=!0,this.isClosing=!1,this._duration=this.pswp.options.showAnimationDuration,t&&t.zoomLevels.initial*t.width>=this.pswp.options.maxWidthToAnimate&&(this._duration=0),this._applyStartProps()}}_applyStartProps(){let{pswp:t}=this,e=this.pswp.currSlide,{options:i}=t;if(i.showHideAnimationType==="fade"?(i.showHideOpacity=!0,this._thumbBounds=void 0):i.showHideAnimationType==="none"?(i.showHideOpacity=!1,this._duration=0,this._thumbBounds=void 0):this.isOpening&&t._initialThumbBounds?this._thumbBounds=t._initialThumbBounds:this._thumbBounds=this.pswp.getThumbBounds(),this._placeholder=e==null?void 0:e.getPlaceholderElement(),t.animations.stopAll(),this._useAnimation=!!(this._duration&&this._duration>50),this._animateZoom=!!this._thumbBounds&&(e==null?void 0:e.content.usePlaceholder())&&(!this.isClosing||!t.mainScroll.isShifted()),!this._animateZoom)this._animateRootOpacity=!0,this.isOpening&&e&&(e.zoomAndPanToInitial(),e.applyCurrentZoomPan());else{var o;this._animateRootOpacity=(o=i.showHideOpacity)!==null&&o!==void 0?o:!1}if(this._animateBgOpacity=!this._animateRootOpacity&&this.pswp.options.bgOpacity>L,this._opacityElement=this._animateRootOpacity?t.element:t.bg,!this._useAnimation){this._duration=0,this._animateZoom=!1,this._animateBgOpacity=!1,this._animateRootOpacity=!0,this.isOpening&&(t.element&&(t.element.style.opacity=String(L)),t.applyBgOpacity(1));return}if(this._animateZoom&&this._thumbBounds&&this._thumbBounds.innerRect){var s;this._croppedZoom=!0,this._cropContainer1=this.pswp.container,this._cropContainer2=(s=this.pswp.currSlide)===null||s===void 0?void 0:s.holderElement,t.container&&(t.container.style.overflow="hidden",t.container.style.width=t.viewportSize.x+"px")}else this._croppedZoom=!1;this.isOpening?(this._animateRootOpacity?(t.element&&(t.element.style.opacity=String(L)),t.applyBgOpacity(1)):(this._animateBgOpacity&&t.bg&&(t.bg.style.opacity=String(L)),t.element&&(t.element.style.opacity="1")),this._animateZoom&&(this._setClosedStateZoomPan(),this._placeholder&&(this._placeholder.style.willChange="transform",this._placeholder.style.opacity=String(L)))):this.isClosing&&(t.mainScroll.itemHolders[0]&&(t.mainScroll.itemHolders[0].el.style.display="none"),t.mainScroll.itemHolders[2]&&(t.mainScroll.itemHolders[2].el.style.display="none"),this._croppedZoom&&t.mainScroll.x!==0&&(t.mainScroll.resetPosition(),t.mainScroll.resize()))}_start(){this.isOpening&&this._useAnimation&&this._placeholder&&this._placeholder.tagName==="IMG"?new Promise(t=>{let e=!1,i=!0;re(this._placeholder).finally(()=>{e=!0,i||t(!0)}),setTimeout(()=>{i=!1,e&&t(!0)},50),setTimeout(t,250)}).finally(()=>this._initiate()):this._initiate()}_initiate(){var t,e;(t=this.pswp.element)===null||t===void 0||t.style.setProperty("--pswp-transition-duration",this._duration+"ms"),this.pswp.dispatch(this.isOpening?"openingAnimationStart":"closingAnimationStart"),this.pswp.dispatch("initialZoom"+(this.isOpening?"In":"Out")),(e=this.pswp.element)===null||e===void 0||e.classList.toggle("pswp--ui-visible",this.isOpening),this.isOpening?(this._placeholder&&(this._placeholder.style.opacity="1"),this._animateToOpenState()):this.isClosing&&this._animateToClosedState(),this._useAnimation||this._onAnimationComplete()}_onAnimationComplete(){let{pswp:t}=this;if(this.isOpen=this.isOpening,this.isClosed=this.isClosing,this.isOpening=!1,this.isClosing=!1,t.dispatch(this.isOpen?"openingAnimationEnd":"closingAnimationEnd"),t.dispatch("initialZoom"+(this.isOpen?"InEnd":"OutEnd")),this.isClosed)t.destroy();else if(this.isOpen){var e;this._animateZoom&&t.container&&(t.container.style.overflow="visible",t.container.style.width="100%"),(e=t.currSlide)===null||e===void 0||e.applyCurrentZoomPan()}}_animateToOpenState(){let{pswp:t}=this;this._animateZoom&&(this._croppedZoom&&this._cropContainer1&&this._cropContainer2&&(this._animateTo(this._cropContainer1,"transform","translate3d(0,0,0)"),this._animateTo(this._cropContainer2,"transform","none")),t.currSlide&&(t.currSlide.zoomAndPanToInitial(),this._animateTo(t.currSlide.container,"transform",t.currSlide.getCurrentTransform()))),this._animateBgOpacity&&t.bg&&this._animateTo(t.bg,"opacity",String(t.options.bgOpacity)),this._animateRootOpacity&&t.element&&this._animateTo(t.element,"opacity","1")}_animateToClosedState(){let{pswp:t}=this;this._animateZoom&&this._setClosedStateZoomPan(!0),this._animateBgOpacity&&t.bgOpacity>.01&&t.bg&&this._animateTo(t.bg,"opacity","0"),this._animateRootOpacity&&t.element&&this._animateTo(t.element,"opacity","0")}_setClosedStateZoomPan(t){if(!this._thumbBounds)return;let{pswp:e}=this,{innerRect:i}=this._thumbBounds,{currSlide:o,viewportSize:s}=e;if(this._croppedZoom&&i&&this._cropContainer1&&this._cropContainer2){let n=-s.x+(this._thumbBounds.x-i.x)+i.w,l=-s.y+(this._thumbBounds.y-i.y)+i.h,a=s.x-i.w,h=s.y-i.h;t?(this._animateTo(this._cropContainer1,"transform",T(n,l)),this._animateTo(this._cropContainer2,"transform",T(a,h))):(v(this._cropContainer1,n,l),v(this._cropContainer2,a,h))}o&&(g(o.pan,i||this._thumbBounds),o.currZoomLevel=this._thumbBounds.w/o.width,t?this._animateTo(o.container,"transform",o.getCurrentTransform()):o.applyCurrentZoomPan())}_animateTo(t,e,i){if(!this._duration){t.style[e]=i;return}let{animations:o}=this.pswp,s={duration:this._duration,easing:this.pswp.options.easing,onComplete:()=>{o.activeAnimations.length||this._onAnimationComplete()},target:t};s[e]=i,o.startTransition(s)}},Ze={allowPanToNext:!0,spacing:.1,loop:!0,pinchToClose:!0,closeOnVerticalDrag:!0,hideAnimationDuration:333,showAnimationDuration:333,zoomAnimationDuration:333,escKey:!0,arrowKeys:!0,trapFocus:!0,returnFocus:!0,maxWidthToAnimate:4e3,clickToCloseNonZoomable:!0,imageClickAction:"zoom-or-close",bgClickAction:"close",tapAction:"toggle-controls",doubleTapAction:"zoom",indexIndicatorSep:" / ",preloaderDelay:2e3,bgOpacity:.8,index:0,errorMsg:"The image cannot be loaded",preload:[1,2],easing:"cubic-bezier(.4,0,.22,1)"},M=class extends ft{constructor(t){super(),this.options=this._prepareOptions(t||{}),this.offset={x:0,y:0},this._prevViewportSize={x:0,y:0},this.viewportSize={x:0,y:0},this.bgOpacity=1,this.currIndex=0,this.potentialIndex=0,this.isOpen=!1,this.isDestroying=!1,this.hasMouse=!1,this._initialItemData={},this._initialThumbBounds=void 0,this.topBar=void 0,this.element=void 0,this.template=void 0,this.container=void 0,this.scrollWrap=void 0,this.currSlide=void 0,this.events=new Y,this.animations=new lt,this.mainScroll=new it(this),this.gestures=new et(this),this.opener=new It(this),this.keyboard=new ot(this),this.contentLoader=new ut(this)}init(){if(this.isOpen||this.isDestroying)return!1;this.isOpen=!0,this.dispatch("init"),this.dispatch("beforeOpen"),this._createMainStructure();let t="pswp--open";return this.gestures.supportsTouch&&(t+=" pswp--touch"),this.options.mainClass&&(t+=" "+this.options.mainClass),this.element&&(this.element.className+=" "+t),this.currIndex=this.options.index||0,this.potentialIndex=this.currIndex,this.dispatch("firstUpdate"),this.scrollWheel=new at(this),(Number.isNaN(this.currIndex)||this.currIndex<0||this.currIndex>=this.getNumItems())&&(this.currIndex=0),this.gestures.supportsTouch||this.mouseDetected(),this.updateSize(),this.offset.y=window.pageYOffset,this._initialItemData=this.getItemData(this.currIndex),this.dispatch("gettingData",{index:this.currIndex,data:this._initialItemData,slide:void 0}),this._initialThumbBounds=this.getThumbBounds(),this.dispatch("initialLayout"),this.on("openingAnimationEnd",()=>{let{itemHolders:e}=this.mainScroll;e[0]&&(e[0].el.style.display="block",this.setContent(e[0],this.currIndex-1)),e[2]&&(e[2].el.style.display="block",this.setContent(e[2],this.currIndex+1)),this.appendHeavy(),this.contentLoader.updateLazy(),this.events.add(window,"resize",this._handlePageResize.bind(this)),this.events.add(window,"scroll",this._updatePageScrollOffset.bind(this)),this.dispatch("bindEvents")}),this.mainScroll.itemHolders[1]&&this.setContent(this.mainScroll.itemHolders[1],this.currIndex),this.dispatch("change"),this.opener.open(),this.dispatch("afterInit"),!0}getLoopedIndex(t){let e=this.getNumItems();return this.options.loop&&(t>e-1&&(t-=e),t<0&&(t+=e)),P(t,0,e-1)}appendHeavy(){this.mainScroll.itemHolders.forEach(t=>{var e;(e=t.slide)===null||e===void 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e;let t=new CustomEvent("select",{detail:this});(e=this._rootElement)==null||e.dispatchEvent(t)}toggleSelect(){this._selected?this.unselect():this.select()}throwNotSelectableError(){if(!this.options.selectable)throw Error("Gallery is not selectable")}select(){var t;this.throwNotSelectableError(),this._selected=!0,(t=this._rootElement)==null||t.classList.add("selected"),this.updateAriaSelectedStatus(),this.emitSelectEvent()}unselect(){var t;this.throwNotSelectableError(),this._selected=!1,(t=this._rootElement)==null||t.classList.remove("selected"),this.updateAriaSelectedStatus(),this.emitSelectEvent()}remove(){var t,e;(e=(t=this._rootElement)==null?void 0:t.parentNode)==null||e.removeChild(this._rootElement)}updateAriaSelectedStatus(){var t,e;(t=this._checkbox)==null||t.setAttribute("aria-checked",String(this._selected)),(e=this._checkbox)==null||e.setAttribute("aria-label",this._selected?"Unselect":"Select")}getEmptyLinkOrButton(){if(this.model.link){let t=this.document.createElement("a");return t.setAttribute("href",this.model.link),this.model.linkTarget&&t.setAttribute("target",this.model.linkTarget),t}else if(this.options.activable){let t=this.document.createElement("button");return t.classList.add("activation"),t.setAttribute("tabindex","0"),this.handleActivation(t),t}return null}showLabel(){let t=!1,e=["always","hover"];return this.sanitizedTitle&&this.options.labelVisibility&&e.includes(this.options.labelVisibility)&&(t=!0),t}getFigure(){let t=this.document.createElement("figure");return t.classList.add("figure"),t.setAttribute("role","group"),this.model.color&&(t.style.backgroundColor=this.model.color+"11"),t}getImage(t){let e=this.document.createElement("img");return e.setAttribute("src",this.model.thumbnailSrc),e.style.objectFit=this.model.objectFit||"cover",e.style.objectPosition=this.model.objectPosition||"center",e.classList.add("image"),e.setAttribute("loading","lazy"),e.addEventListener("load",()=>{var i;return(i=this._rootElement)==null?void 0:i.classList.add("loaded")}),this.model.alt&&this.model.alt!==this.sanitizedTitle?e.setAttribute("alt",this.model.alt):!t&&this.sanitizedTitle&&e.setAttribute("alt",this.sanitizedTitle),e}getEmptyCaption(){if(!this.showLabel())return null;let t=this.document.createElement("figcaption");return t.classList.add("caption"),t.classList.add("title"),this.options.labelVisibility==="hover"&&t.classList.add("hover"),this.figcaption=t,t}getCheckbox(){if(!this.options.selectable)return null;let t=this.document.createElement("button");t.tabIndex=0,t.classList.add("select-btn"),t.setAttribute("role","checkbox");let e=this.document.createElement("div");e.classList.add("marker"),t.appendChild(e);let i=o=>{o.stopPropagation(),o.preventDefault(),this.toggleSelect()};return t.addEventListener("click",i),t.addEventListener("keydown",o=>{(o.key==="Enter"||o.key===" ")&&i(o)}),this._checkbox=t,this.updateAriaSelectedStatus(),this.model.selected?this.select():this.unselect(),t}handleActivation(t){t.setAttribute("aria-label","activate item");let e=i=>{var n;let o={item:this,event:i},s=new CustomEvent("activate",{detail:o});(n=this._rootElement)==null||n.dispatchEvent(s)};t.addEventListener("click",e),t.addEventListener("keydown",i=>{(i.key==="Enter"||i.key===" ")&&e(i)})}handleZoom(t){if(t&&t){t.tabIndex=0,t.setAttribute("aria-label","zoom"),t.setAttribute("role","button"),t.classList.add("zoomable");let e=()=>{var o;let i=new CustomEvent("zoom",{detail:this});(o=this._rootElement)==null||o.dispatchEvent(i)};t.addEventListener("click",e),t.addEventListener("keydown",i=>{(i.key==="Enter"||i.key===" ")&&(i.preventDefault(),e())})}}};var w=class{constructor(t,e,i){this.elementRef=t;this.scrollElementRef=i;this.options={gap:3,rowsPerPage:0,labelVisibility:"hover",lightbox:!1,minRowsAtStart:2,selectable:!1,activable:!1,infiniteScrollOffset:0,photoSwipeOptions:{loop:!1},photoSwipePluginsInitFn:null,ssr:{galleryWidth:480}};this.scrollBufferedItems=[];this.requiredItems=0;this.psLightbox=null;this.old_scroll_top=0;this.requestedIndexesLog=[];this._collection=[];this._domCollection=[];var a;this.document=this.elementRef.ownerDocument,this.options=U(e,this.options),this.flushBufferedItems=x(()=>{if(this.scrollBufferedItems.forEach(h=>{this.dispatchEvent("item-displayed",h)}),this.scrollBufferedItems=[],!!this.requiredItems&&this.requestedIndexesLog.indexOf(this.collection.length)<0){let h=this.collection.length;this.dispatchEvent("pagination",{offset:h,limit:this.requiredItems}),this.requestedIndexesLog.push(h),this.requiredItems=0}},500),this.elementRef.classList.add("natural-gallery-js"),this.elementRef.classList.add(this.getFormatName()),this.nextButton=this.document.createElement("button"),this.nextButton.classList.add("natural-gallery-next"),this.nextButton.appendChild(Yt(this.document)),this.nextButton.setAttribute("aria-label","next page"),this.nextButton.style.display="none",this.nextButton.addEventListener("click",h=>{h.preventDefault(),this.onPageAdd()}),this.bodyElementRef=this.document.createElement("div"),this.bodyElementRef.classList.add("natural-gallery-body"),this.extendToFreeViewport();let o=this.document.createElement("iframe");this.elementRef.appendChild(o);let s=500,n=x(()=>this.startResize(),s,{edges:["leading"]}),l=x(()=>this.endResize(),s);(a=o.contentWindow)==null||a.addEventListener("resize",()=>{l(),n()}),this.elementRef.appendChild(this.bodyElementRef),this.elementRef.appendChild(this.nextButton),this.options.rowsPerPage||this.bindScroll(this.scrollElementRef||this.document),this.requestItems(),this.options.lightbox&&this.photoSwipeInit()}get photoSwipe(){return this.psLightbox}get photoSwipeCurrentItem(){var t,e,i;return((i=this.collection[((e=(t=this.psLightbox)==null?void 0:t.pswp)==null?void 0:e.currIndex)||0])==null?void 0:i.model)||null}get collection(){return this._collection}get domCollection(){return this._domCollection}get selectedItems(){return this.collection.filter(t=>t.selected)}get width(){var t,e,i;return Math.floor((i=(e=(t=this.elementRef).getBoundingClientRect)==null?void 0:e.call(t).width)!=null?i:this.options.ssr.galleryWidth)}addItemToPhotoSwipeCollection(t){var i;let e=this.domCollection.length-1;(i=t.rootElement)==null||i.addEventListener("zoom",()=>{var o;(o=this.psLightbox)==null||o.loadAndOpen(e)})}addItems(t){let e=this.collection.length===this.domCollection.length,i=this.collection.length;t.forEach(o=>{let s=X(this.options,["lightbox","selectable","activable","gap","labelVisibility"]),n=new k(this.document,s,o);this._collection.push(n)}),e&&i===0?this.onPageAdd():e&&i>0&&this.onScroll()}setLabelHover(t){this.options.labelVisibility=t?"hover":"always",this.collection.forEach(e=>{e.setLabelHover(t)})}selectCollection(){return this.selectItems(this.collection)}selectDomCollection(){return this.selectItems(this.domCollection)}selectItems(t){if(!this.options.selectable)throw Error("Gallery is not selectable");return t.forEach(e=>e.select()),this.selectedItems}unselectAllItems(){this.domCollection.forEach(t=>t.unselect())}addEventListener(t,e,i){this.elementRef.addEventListener(t,e,i),t==="pagination"&&this.requestItems()}clear(){this.empty(),this.requestItems()}getOptions(){return this.options}setItems(t){this.empty(),this.addItems(t)}photoSwipeInit(){this.psLightbox=new D(Tt(O({},this.options.photoSwipeOptions),{pswpModule:M})),this.psLightbox.addFilter("numItems",()=>this.domCollection.length),this.psLightbox.addFilter("itemData",(t,e)=>{let i=this.collection[e];return{id:e,src:i.model.enlargedSrc,w:i.model.enlargedWidth,h:i.model.enlargedHeight,msrc:i.model.thumbnailSrc,element:i.rootElement,thumbCropped:i.cropped,alt:i.sanitizedTitle}}),this.options.photoSwipePluginsInitFn&&this.options.photoSwipePluginsInitFn(this.psLightbox),this.psLightbox.init(),this.psLightbox.on("change",()=>{var t;(t=this.psLightbox)!=null&&t.pswp&&this.psLightbox.pswp.currIndex>this.domCollection.length-10&&this.onPageAdd()}),this.psLightbox.on("destroy",()=>{var t;(t=this.document.activeElement)==null||t.blur()})}requestItems(){let e=this.getEstimatedColumnsPerRow()*this.getRowsPerPage()+1;this.dispatchEvent("pagination",{offset:this.collection.length,limit:e})}getRowsPerPage(){if(this.options.rowsPerPage>0)return this.options.rowsPerPage;let t=this.getEstimatedRowsPerPage();return t{this.dispatchEvent("select",this.domCollection.filter(s=>s.selected))}),(o=t.rootElement)==null||o.addEventListener("activate",s=>{this.dispatchEvent("activate",{item:t,event:s.detail.event})}),this.options.lightbox&&this.addItemToPhotoSwipeCollection(t)}updateNextButtonVisibility(){this.domCollection.length===this.collection.length?this.nextButton.style.display="none":this.nextButton.style.display="block"}extendToFreeViewport(){this.options.rowsPerPage||(this.elementRef.style.minHeight=this.getGalleryVisibleHeight()+10+"px")}getGalleryVisibleHeight(){return this.document.defaultView?this.document.defaultView.innerHeight-this.elementRef.offsetTop:0}startResize(){var t;(t=this.bodyElementRef)==null||t.classList.add("resizing")}endResize(){var t;(t=this.bodyElementRef)==null||t.classList.remove("resizing")}dispatchEvent(t,e){try{let i=new CustomEvent(t,{detail:e});this.elementRef.dispatchEvent(i)}catch(i){}}empty(){this.bodyElementRef.innerHTML="",this.requestedIndexesLog.length=0,this._domCollection=[],this._collection=[]}bindScroll(t){let e=t,i=t instanceof Document?t.documentElement:t,o=x(()=>this.elementRef.classList.add("scrolling"),300,{edges:["leading"]}),s=x(()=>this.elementRef.classList.remove("scrolling"),300);e.addEventListener("scroll",()=>{o(),s();let n=this.elementRef.offsetTop+this.elementRef.offsetHeight+this.options.infiniteScrollOffset,l=i.scrollTop-(i.clientTop||0),a=i.clientHeight,h=l-this.old_scroll_top;this.old_scroll_top=l,h>0&&l+a>=n&&this.onScroll()})}get rootElement(){return this.elementRef}get bodyElement(){return this.bodyElementRef}};var _=class extends w{constructor(e,i,o){super(e,i,o);this.elementRef=e;this.scrollElementRef=o;this.bodyElementRef.style.rowGap=this.options.gap+"px"}onScroll(){this.addRows(1)}onPageAdd(){this.addRows(this.getRowsPerPage())}addRows(e){let i=this.domCollection.length,o=this.domCollection.length?this.domCollection[i-1].row+1:0,s=o+e-1,n=this.collection.slice(i);this.organizeItems(n,o,s),n.filter(a=>a.row<=s).forEach(a=>this.addItemToDOM(a)),this.flushBufferedItems(),this.updateNextButtonVisibility()}endResize(){super.endResize(),this.domCollection.length&&this.organizeItems(this.domCollection)}};var St=class r extends _{constructor(t,e,i){if(super(t,e,i),!e.rowHeight||e.rowHeight<=0)throw new Error("Option.rowHeight must be positive")}static organizeItems(t,e,i=0,o=null,s=null){s||(s=i||0);let n=t.options;for(let l=1;l<=e.length;l++){let a=e.slice(0,l);if(this.getRowWidth(a.map(p=>p.model),n.rowHeight,n.gap,n.ratioLimit)>=t.width){this.computeSizes(a,t.width,n.gap,s,null,n.ratioLimit);let p=s+1;(o===null||p<=o)&&r.organizeItems(t,e.slice(l),i,o,p);break}else if(l===e.length){this.computeSizes(a,null,n.gap,s,n.rowHeight,n.ratioLimit);break}}}static computeSizes(t,e,i,o,s=null,n){let l=t.map(m=>m.model),a=e?this.getRowHeight(l,e,i,n):s!=null?s:0,p=(this.getRowWidth(l,a,i,n)-(e!=null?e:0))/t.length,d=e?p:0,c=0;for(let m=0;m=1||m===t.length-1&&Math.round(c)===1)&&(b++,c--),u.width=b,u.height=Math.floor(a),u.cropped=S,u.row=o,u.style()}}static getRowWidth(t,e,i,o){return i*(t.length-1)+this.getRatios(t,o)*e}static getRowHeight(t,e,i,o){return(e-i*(t.length-1))/this.getRatios(t,o)}static getRatios(t,e){return t.reduce((i,o)=>i+Jt(o,e),0)}addRows(t){this.completeLastRow(),super.addRows(t)}organizeItems(t,e,i){r.organizeItems(this,t,e,i)}getFormatName(){return"format-natural"}endResize(){super.endResize(),this.completeLastRow(),this.flushBufferedItems()}getEstimatedColumnsPerRow(){let t=1;return this.options.ratioLimit&&this.options.ratioLimit.min&&(t=this.options.ratioLimit.min),Math.ceil((1/t*this.width+this.options.gap)/(this.options.rowHeight+this.options.gap))}getEstimatedRowsPerPage(){return 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kt=!1;try{window.addEventListener("test",null,Object.defineProperty({},"passive",{get:()=>{kt=!0}}))}catch(n){}var Y=class{constructor(){this._pool=[]}add(t,e,i,o){this._toggleListener(t,e,i,o)}remove(t,e,i,o){this._toggleListener(t,e,i,o,!0)}removeAll(){this._pool.forEach(t=>{this._toggleListener(t.target,t.type,t.listener,t.passive,!0,!0)}),this._pool=[]}_toggleListener(t,e,i,o,s,r){if(!t)return;let l=s?"removeEventListener":"addEventListener";e.split(" ").forEach(h=>{if(h){r||(s?this._pool=this._pool.filter(d=>d.type!==h||d.listener!==i||d.target!==t):this._pool.push({target:t,type:h,listener:i,passive:o}));let p=kt?{passive:o||!1}:!1;t[l](h,i,p)}})}};function Vt(n,t){if(n.getViewportSizeFn){let e=n.getViewportSizeFn(n,t);if(e)return e}return{x:document.documentElement.clientWidth,y:window.innerHeight}}function E(n,t,e,i,o){let s=0;if(t.paddingFn)s=t.paddingFn(e,i,o)[n];else if(t.padding)s=t.padding[n];else{let r="padding"+n[0].toUpperCase()+n.slice(1);t[r]&&(s=t[r])}return 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J(this),this.prevDisplayedWidth=-1,this.prevDisplayedHeight=-1,this.pswp.dispatch("slideInit",{slide:this})}setIsActive(t){t&&!this.isActive?this.activate():!t&&this.isActive&&this.deactivate()}append(t){this.holderElement=t,this.container.style.transformOrigin="0 0",this.data&&(this.calculateSize(),this.load(),this.updateContentSize(),this.appendHeavy(),this.holderElement.appendChild(this.container),this.zoomAndPanToInitial(),this.pswp.dispatch("firstZoomPan",{slide:this}),this.applyCurrentZoomPan(),this.pswp.dispatch("afterSetContent",{slide:this}),this.isActive&&this.activate())}load(){this.content.load(!1),this.pswp.dispatch("slideLoad",{slide:this})}appendHeavy(){let{pswp:t}=this;this.heavyAppended||!t.opener.isOpen||t.mainScroll.isShifted()||!this.isActive&&!!0||this.pswp.dispatch("appendHeavy",{slide:this}).defaultPrevented||(this.heavyAppended=!0,this.content.append(),this.pswp.dispatch("appendHeavyContent",{slide:this}))}activate(){this.isActive=!0,this.appendHeavy(),this.content.activate(),this.pswp.dispatch("slideActivate",{slide:this})}deactivate(){this.isActive=!1,this.content.deactivate(),this.currZoomLevel!==this.zoomLevels.initial&&this.calculateSize(),this.currentResolution=0,this.zoomAndPanToInitial(),this.applyCurrentZoomPan(),this.updateContentSize(),this.pswp.dispatch("slideDeactivate",{slide:this})}destroy(){this.content.hasSlide=!1,this.content.remove(),this.container.remove(),this.pswp.dispatch("slideDestroy",{slide:this})}resize(){this.currZoomLevel===this.zoomLevels.initial||!this.isActive?(this.calculateSize(),this.currentResolution=0,this.zoomAndPanToInitial(),this.applyCurrentZoomPan(),this.updateContentSize()):(this.calculateSize(),this.bounds.update(this.currZoomLevel),this.panTo(this.pan.x,this.pan.y))}updateContentSize(t){let e=this.currentResolution||this.zoomLevels.initial;if(!e)return;let i=Math.round(this.width*e)||this.pswp.viewportSize.x,o=Math.round(this.height*e)||this.pswp.viewportSize.y;!this.sizeChanged(i,o)&&!t||this.content.setDisplayedSize(i,o)}sizeChanged(t,e){return t!==this.prevDisplayedWidth||e!==this.prevDisplayedHeight?(this.prevDisplayedWidth=t,this.prevDisplayedHeight=e,!0):!1}getPlaceholderElement(){var t;return(t=this.content.placeholder)===null||t===void 0?void 0:t.element}zoomTo(t,e,i,o){let{pswp:s}=this;if(!this.isZoomable()||s.mainScroll.isShifted())return;s.dispatch("beforeZoomTo",{destZoomLevel:t,centerPoint:e,transitionDuration:i}),s.animations.stopAllPan();let r=this.currZoomLevel;o||(t=P(t,this.zoomLevels.min,this.zoomLevels.max)),this.setZoomLevel(t),this.pan.x=this.calculateZoomToPanOffset("x",e,r),this.pan.y=this.calculateZoomToPanOffset("y",e,r),Dt(this.pan);let l=()=>{this._setResolution(t),this.applyCurrentZoomPan()};i?s.animations.startTransition({isPan:!0,name:"zoomTo",target:this.container,transform:this.getCurrentTransform(),onComplete:l,duration:i,easing:s.options.easing}):l()}toggleZoom(t){this.zoomTo(this.currZoomLevel===this.zoomLevels.initial?this.zoomLevels.secondary:this.zoomLevels.initial,t,this.pswp.options.zoomAnimationDuration)}setZoomLevel(t){this.currZoomLevel=t,this.bounds.update(this.currZoomLevel)}calculateZoomToPanOffset(t,e,i){if(this.bounds.max[t]-this.bounds.min[t]===0)return this.bounds.center[t];e||(e=this.pswp.getViewportCenterPoint()),i||(i=this.zoomLevels.initial);let s=this.currZoomLevel/i;return this.bounds.correctPan(t,(this.pan[t]-e[t])*s+e[t])}panTo(t,e){this.pan.x=this.bounds.correctPan("x",t),this.pan.y=this.bounds.correctPan("y",e),this.applyCurrentZoomPan()}isPannable(){return!!this.width&&this.currZoomLevel>this.zoomLevels.fit}isZoomable(){return!!this.width&&this.content.isZoomable()}applyCurrentZoomPan(){this._applyZoomTransform(this.pan.x,this.pan.y,this.currZoomLevel),this===this.pswp.currSlide&&this.pswp.dispatch("zoomPanUpdate",{slide:this})}zoomAndPanToInitial(){this.currZoomLevel=this.zoomLevels.initial,this.bounds.update(this.currZoomLevel),g(this.pan,this.bounds.center),this.pswp.dispatch("initialZoomPan",{slide:this})}_applyZoomTransform(t,e,i){i/=this.currentResolution||this.zoomLevels.initial,v(this.container,t,e,i)}calculateSize(){let{pswp:t}=this;g(this.panAreaSize,Nt(t.options,t.viewportSize,this.data,this.index)),this.zoomLevels.update(this.width,this.height,this.panAreaSize),t.dispatch("calcSlideSize",{slide:this})}getCurrentTransform(){let t=this.currZoomLevel/(this.currentResolution||this.zoomLevels.initial);return B(this.pan.x,this.pan.y,t)}_setResolution(t){t!==this.currentResolution&&(this.currentResolution=t,this.updateContentSize(),this.pswp.dispatch("resolutionChanged"))}},ae=.35,he=.6,Rt=.4,Zt=.5;function pe(n,t){return n*t/(1-t)}var q=class{constructor(t){this.gestures=t,this.pswp=t.pswp,this.startPan={x:0,y:0}}start(){this.pswp.currSlide&&g(this.startPan,this.pswp.currSlide.pan),this.pswp.animations.stopAll()}change(){let{p1:t,prevP1:e,dragAxis:i}=this.gestures,{currSlide:o}=this.pswp;if(i==="y"&&this.pswp.options.closeOnVerticalDrag&&o&&o.currZoomLevel<=o.zoomLevels.fit&&!this.gestures.isMultitouch){let s=o.pan.y+(t.y-e.y);if(!this.pswp.dispatch("verticalDrag",{panY:s}).defaultPrevented){this._setPanWithFriction("y",s,he);let r=1-Math.abs(this._getVerticalDragRatio(o.pan.y));this.pswp.applyBgOpacity(r),o.applyCurrentZoomPan()}}else this._panOrMoveMainScroll("x")||(this._panOrMoveMainScroll("y"),o&&(Dt(o.pan),o.applyCurrentZoomPan()))}end(){let{velocity:t}=this.gestures,{mainScroll:e,currSlide:i}=this.pswp,o=0;if(this.pswp.animations.stopAll(),e.isShifted()){let r=(e.x-e.getCurrSlideX())/this.pswp.viewportSize.x;t.x<-Zt&&r<0||t.x<.1&&r<-.5?(o=1,t.x=Math.min(t.x,0)):(t.x>Zt&&r>0||t.x>-.1&&r>.5)&&(o=-1,t.x=Math.max(t.x,0)),e.moveIndexBy(o,!0,t.x)}i&&i.currZoomLevel>i.zoomLevels.max||this.gestures.isMultitouch?this.gestures.zoomLevels.correctZoomPan(!0):(this._finishPanGestureForAxis("x"),this._finishPanGestureForAxis("y"))}_finishPanGestureForAxis(t){let{velocity:e}=this.gestures,{currSlide:i}=this.pswp;if(!i)return;let{pan:o,bounds:s}=i,r=o[t],l=this.pswp.bgOpacity<1&&t==="y",h=r+pe(e[t],.995);if(l){let u=this._getVerticalDragRatio(r),f=this._getVerticalDragRatio(h);if(u<0&&f<-Rt||u>0&&f>Rt){this.pswp.close();return}}let p=s.correctPan(t,h);if(r===p)return;let d=p===h?1:.82,c=this.pswp.bgOpacity,m=p-r;this.pswp.animations.startSpring({name:"panGesture"+t,isPan:!0,start:r,end:p,velocity:e[t],dampingRatio:d,onUpdate:u=>{if(l&&this.pswp.bgOpacity<1){let f=1-(p-u)/m;this.pswp.applyBgOpacity(P(c+(1-c)*f,0,1))}o[t]=Math.floor(u),i.applyCurrentZoomPan()}})}_panOrMoveMainScroll(t){let{p1:e,dragAxis:i,prevP1:o,isMultitouch:s}=this.gestures,{currSlide:r,mainScroll:l}=this.pswp,a=e[t]-o[t],h=l.x+a;if(!a||!r)return!1;if(t==="x"&&!r.isPannable()&&!s)return l.moveTo(h,!0),!0;let{bounds:p}=r,d=r.pan[t]+a;if(this.pswp.options.allowPanToNext&&i==="x"&&t==="x"&&!s){let c=l.getCurrSlideX(),m=l.x-c,u=a>0,f=!u;if(d>p.min[t]&&u){if(p.min[t]<=this.startPan[t])return l.moveTo(h,!0),!0;this._setPanWithFriction(t,d)}else if(d0)return l.moveTo(Math.max(h,c),!0),!0;if(m<0)return l.moveTo(Math.min(h,c),!0),!0}else this._setPanWithFriction(t,d)}else t==="y"?!l.isShifted()&&p.min.y!==p.max.y&&this._setPanWithFriction(t,d):this._setPanWithFriction(t,d);return!1}_getVerticalDragRatio(t){var e,i;return(t-((e=(i=this.pswp.currSlide)===null||i===void 0?void 0:i.bounds.center.y)!==null&&e!==void 0?e:0))/(this.pswp.viewportSize.y/3)}_setPanWithFriction(t,e,i){let{currSlide:o}=this.pswp;if(!o)return;let{pan:s,bounds:r}=o;if(r.correctPan(t,e)!==e||i){let a=Math.round(e-s[t]);s[t]+=a*(i||ae)}else s[t]=e}},de=.05,ce=.15;function Gt(n,t,e){return n.x=(t.x+e.x)/2,n.y=(t.y+e.y)/2,n}var $=class{constructor(t){this.gestures=t,this._startPan={x:0,y:0},this._startZoomPoint={x:0,y:0},this._zoomPoint={x:0,y:0},this._wasOverFitZoomLevel=!1,this._startZoomLevel=1}start(){let{currSlide:t}=this.gestures.pswp;t&&(this._startZoomLevel=t.currZoomLevel,g(this._startPan,t.pan)),this.gestures.pswp.animations.stopAllPan(),this._wasOverFitZoomLevel=!1}change(){let{p1:t,startP1:e,p2:i,startP2:o,pswp:s}=this.gestures,{currSlide:r}=s;if(!r)return;let l=r.zoomLevels.min,a=r.zoomLevels.max;if(!r.isZoomable()||s.mainScroll.isShifted())return;Gt(this._startZoomPoint,e,o),Gt(this._zoomPoint,t,i);let h=1/Q(e,o)*Q(t,i)*this._startZoomLevel;if(h>r.zoomLevels.initial+r.zoomLevels.initial/15&&(this._wasOverFitZoomLevel=!0),ha&&(h=a+(h-a)*de);r.pan.x=this._calculatePanForZoomLevel("x",h),r.pan.y=this._calculatePanForZoomLevel("y",h),r.setZoomLevel(h),r.applyCurrentZoomPan()}end(){let{pswp:t}=this.gestures,{currSlide:e}=t;(!e||e.currZoomLeveli.zoomLevels.max?s=i.zoomLevels.max:(r=!1,s=o);let l=e.bgOpacity,a=e.bgOpacity<1,h=g({x:0,y:0},i.pan),p=g({x:0,y:0},h);t&&(this._zoomPoint.x=0,this._zoomPoint.y=0,this._startZoomPoint.x=0,this._startZoomPoint.y=0,this._startZoomLevel=o,g(this._startPan,h)),r&&(p={x:this._calculatePanForZoomLevel("x",s),y:this._calculatePanForZoomLevel("y",s)}),i.setZoomLevel(s),p={x:i.bounds.correctPan("x",p.x),y:i.bounds.correctPan("y",p.y)},i.setZoomLevel(o);let d=!T(p,h);if(!d&&!r&&!a){i._setResolution(s),i.applyCurrentZoomPan();return}e.animations.stopAllPan(),e.animations.startSpring({isPan:!0,start:0,end:1e3,velocity:0,dampingRatio:1,naturalFrequency:40,onUpdate:c=>{if(c/=1e3,d||r){if(d&&(i.pan.x=h.x+(p.x-h.x)*c,i.pan.y=h.y+(p.y-h.y)*c),r){let m=o+(s-o)*c;i.setZoomLevel(m)}i.applyCurrentZoomPan()}a&&e.bgOpacity<1&&e.applyBgOpacity(P(l+(1-l)*c,0,1))},onComplete:()=>{i._setResolution(s),i.applyCurrentZoomPan()}})}};function Ft(n){return!!n.target.closest(".pswp__container")}var tt=class{constructor(t){this.gestures=t}click(t,e){let i=e.target.classList,o=i.contains("pswp__img"),s=i.contains("pswp__item")||i.contains("pswp__zoom-wrap");o?this._doClickOrTapAction("imageClick",t,e):s&&this._doClickOrTapAction("bgClick",t,e)}tap(t,e){Ft(e)&&this._doClickOrTapAction("tap",t,e)}doubleTap(t,e){Ft(e)&&this._doClickOrTapAction("doubleTap",t,e)}_doClickOrTapAction(t,e,i){var o;let{pswp:s}=this.gestures,{currSlide:r}=s,l=t+"Action",a=s.options[l];if(!s.dispatch(l,{point:e,originalEvent:i}).defaultPrevented){if(typeof a=="function"){a.call(s,e,i);return}switch(a){case"close":case"next":s[a]();break;case"zoom":r==null||r.toggleZoom(e);break;case"zoom-or-close":r!=null&&r.isZoomable()&&r.zoomLevels.secondary!==r.zoomLevels.initial?r.toggleZoom(e):s.options.clickToCloseNonZoomable&&s.close();break;case"toggle-controls":(o=this.gestures.pswp.element)===null||o===void 0||o.classList.toggle("pswp--ui-visible");break}}}},me=10,ge=300,ue=25,et=class{constructor(t){this.pswp=t,this.dragAxis=null,this.p1={x:0,y:0},this.p2={x:0,y:0},this.prevP1={x:0,y:0},this.prevP2={x:0,y:0},this.startP1={x:0,y:0},this.startP2={x:0,y:0},this.velocity={x:0,y:0},this._lastStartP1={x:0,y:0},this._intervalP1={x:0,y:0},this._numActivePoints=0,this._ongoingPointers=[],this._touchEventEnabled="ontouchstart"in window,this._pointerEventEnabled=!!window.PointerEvent,this.supportsTouch=this._touchEventEnabled||this._pointerEventEnabled&&navigator.maxTouchPoints>1,this._numActivePoints=0,this._intervalTime=0,this._velocityCalculated=!1,this.isMultitouch=!1,this.isDragging=!1,this.isZooming=!1,this.raf=null,this._tapTimer=null,this.supportsTouch||(t.options.allowPanToNext=!1),this.drag=new q(this),this.zoomLevels=new $(this),this.tapHandler=new tt(this),t.on("bindEvents",()=>{t.events.add(t.scrollWrap,"click",this._onClick.bind(this)),this._pointerEventEnabled?this._bindEvents("pointer","down","up","cancel"):this._touchEventEnabled?(this._bindEvents("touch","start","end","cancel"),t.scrollWrap&&(t.scrollWrap.ontouchmove=()=>{},t.scrollWrap.ontouchend=()=>{})):this._bindEvents("mouse","down","up")})}_bindEvents(t,e,i,o){let{pswp:s}=this,{events:r}=s,l=o?t+o:"";r.add(s.scrollWrap,t+e,this.onPointerDown.bind(this)),r.add(window,t+"move",this.onPointerMove.bind(this)),r.add(window,t+i,this.onPointerUp.bind(this)),l&&r.add(s.scrollWrap,l,this.onPointerUp.bind(this))}onPointerDown(t){let e=t.type==="mousedown"||t.pointerType==="mouse";if(e&&t.button>0)return;let{pswp:i}=this;if(!i.opener.isOpen){t.preventDefault();return}i.dispatch("pointerDown",{originalEvent:t}).defaultPrevented||(e&&(i.mouseDetected(),this._preventPointerEventBehaviour(t,"down")),i.animations.stopAll(),this._updatePoints(t,"down"),this._numActivePoints===1&&(this.dragAxis=null,g(this.startP1,this.p1)),this._numActivePoints>1?(this._clearTapTimer(),this.isMultitouch=!0):this.isMultitouch=!1)}onPointerMove(t){this._preventPointerEventBehaviour(t,"move"),this._numActivePoints&&(this._updatePoints(t,"move"),!this.pswp.dispatch("pointerMove",{originalEvent:t}).defaultPrevented&&(this._numActivePoints===1&&!this.isDragging?(this.dragAxis||this._calculateDragDirection(),this.dragAxis&&!this.isDragging&&(this.isZooming&&(this.isZooming=!1,this.zoomLevels.end()),this.isDragging=!0,this._clearTapTimer(),this._updateStartPoints(),this._intervalTime=Date.now(),this._velocityCalculated=!1,g(this._intervalP1,this.p1),this.velocity.x=0,this.velocity.y=0,this.drag.start(),this._rafStopLoop(),this._rafRenderLoop())):this._numActivePoints>1&&!this.isZooming&&(this._finishDrag(),this.isZooming=!0,this._updateStartPoints(),this.zoomLevels.start(),this._rafStopLoop(),this._rafRenderLoop())))}_finishDrag(){this.isDragging&&(this.isDragging=!1,this._velocityCalculated||this._updateVelocity(!0),this.drag.end(),this.dragAxis=null)}onPointerUp(t){this._numActivePoints&&(this._updatePoints(t,"up"),!this.pswp.dispatch("pointerUp",{originalEvent:t}).defaultPrevented&&(this._numActivePoints===0&&(this._rafStopLoop(),this.isDragging?this._finishDrag():!this.isZooming&&!this.isMultitouch&&this._finishTap(t)),this._numActivePoints<2&&this.isZooming&&(this.isZooming=!1,this.zoomLevels.end(),this._numActivePoints===1&&(this.dragAxis=null,this._updateStartPoints()))))}_rafRenderLoop(){(this.isDragging||this.isZooming)&&(this._updateVelocity(),this.isDragging?T(this.p1,this.prevP1)||this.drag.change():(!T(this.p1,this.prevP1)||!T(this.p2,this.prevP2))&&this.zoomLevels.change(),this._updatePrevPoints(),this.raf=requestAnimationFrame(this._rafRenderLoop.bind(this)))}_updateVelocity(t){let e=Date.now(),i=e-this._intervalTime;i<50&&!t||(this.velocity.x=this._getVelocity("x",i),this.velocity.y=this._getVelocity("y",i),this._intervalTime=e,g(this._intervalP1,this.p1),this._velocityCalculated=!0)}_finishTap(t){let{mainScroll:e}=this.pswp;if(e.isShifted()){e.moveIndexBy(0,!0);return}if(t.type.indexOf("cancel")>0)return;if(t.type==="mouseup"||t.pointerType==="mouse"){this.tapHandler.click(this.startP1,t);return}let i=this.pswp.options.doubleTapAction?ge:0;this._tapTimer?(this._clearTapTimer(),Q(this._lastStartP1,this.startP1){this.tapHandler.tap(this.startP1,t),this._clearTapTimer()},i))}_clearTapTimer(){this._tapTimer&&(clearTimeout(this._tapTimer),this._tapTimer=null)}_getVelocity(t,e){let i=this.p1[t]-this._intervalP1[t];return Math.abs(i)>1&&e>5?i/e:0}_rafStopLoop(){this.raf&&(cancelAnimationFrame(this.raf),this.raf=null)}_preventPointerEventBehaviour(t,e){this.pswp.applyFilters("preventPointerEvent",!0,t,e)&&t.preventDefault()}_updatePoints(t,e){if(this._pointerEventEnabled){let i=t,o=this._ongoingPointers.findIndex(s=>s.id===i.pointerId);e==="up"&&o>-1?this._ongoingPointers.splice(o,1):e==="down"&&o===-1?this._ongoingPointers.push(this._convertEventPosToPoint(i,{x:0,y:0})):o>-1&&this._convertEventPosToPoint(i,this._ongoingPointers[o]),this._numActivePoints=this._ongoingPointers.length,this._numActivePoints>0&&g(this.p1,this._ongoingPointers[0]),this._numActivePoints>1&&g(this.p2,this._ongoingPointers[1])}else{let i=t;this._numActivePoints=0,i.type.indexOf("touch")>-1?i.touches&&i.touches.length>0&&(this._convertEventPosToPoint(i.touches[0],this.p1),this._numActivePoints++,i.touches.length>1&&(this._convertEventPosToPoint(i.touches[1],this.p2),this._numActivePoints++)):(this._convertEventPosToPoint(t,this.p1),e==="up"?this._numActivePoints=0:this._numActivePoints++)}}_updatePrevPoints(){g(this.prevP1,this.p1),g(this.prevP2,this.p2)}_updateStartPoints(){g(this.startP1,this.p1),g(this.startP2,this.p2),this._updatePrevPoints()}_calculateDragDirection(){if(this.pswp.mainScroll.isShifted())this.dragAxis="x";else{let t=Math.abs(this.p1.x-this.startP1.x)-Math.abs(this.p1.y-this.startP1.y);if(t!==0){let e=t>0?"x":"y";Math.abs(this.p1[e]-this.startP1[e])>=me&&(this.dragAxis=e)}}}_convertEventPosToPoint(t,e){return e.x=t.pageX-this.pswp.offset.x,e.y=t.pageY-this.pswp.offset.y,"pointerId"in t?e.id=t.pointerId:t.identifier!==void 0&&(e.id=t.identifier),e}_onClick(t){this.pswp.mainScroll.isShifted()&&(t.preventDefault(),t.stopPropagation())}},fe=.35,it=class{constructor(t){this.pswp=t,this.x=0,this.slideWidth=0,this._currPositionIndex=0,this._prevPositionIndex=0,this._containerShiftIndex=-1,this.itemHolders=[]}resize(t){let{pswp:e}=this,i=Math.round(e.viewportSize.x+e.viewportSize.x*e.options.spacing),o=i!==this.slideWidth;o&&(this.slideWidth=i,this.moveTo(this.getCurrSlideX())),this.itemHolders.forEach((s,r)=>{o&&v(s.el,(r+this._containerShiftIndex)*this.slideWidth),t&&s.slide&&s.slide.resize()})}resetPosition(){this._currPositionIndex=0,this._prevPositionIndex=0,this.slideWidth=0,this._containerShiftIndex=-1}appendHolders(){this.itemHolders=[];for(let t=0;t<3;t++){let e=I("pswp__item","div",this.pswp.container);e.setAttribute("role","group"),e.setAttribute("aria-roledescription","slide"),e.setAttribute("aria-hidden","true"),e.style.display=t===1?"block":"none",this.itemHolders.push({el:e})}}canBeSwiped(){return this.pswp.getNumItems()>1}moveIndexBy(t,e,i){let{pswp:o}=this,s=o.potentialIndex+t,r=o.getNumItems();if(o.canLoop()){s=o.getLoopedIndex(s);let a=(t+r)%r;a<=r/2?t=a:t=a-r}else s<0?s=0:s>=r&&(s=r-1),t=s-o.potentialIndex;o.potentialIndex=s,this._currPositionIndex-=t,o.animations.stopMainScroll();let l=this.getCurrSlideX();if(!e)this.moveTo(l),this.updateCurrItem();else{o.animations.startSpring({isMainScroll:!0,start:this.x,end:l,velocity:i||0,naturalFrequency:30,dampingRatio:1,onUpdate:h=>{this.moveTo(h)},onComplete:()=>{this.updateCurrItem(),o.appendHeavy()}});let a=o.potentialIndex-o.currIndex;if(o.canLoop()){let h=(a+r)%r;h<=r/2?a=h:a=h-r}Math.abs(a)>1&&this.updateCurrItem()}return!!t}getCurrSlideX(){return this.slideWidth*this._currPositionIndex}isShifted(){return this.x!==this.getCurrSlideX()}updateCurrItem(){var t;let{pswp:e}=this,i=this._prevPositionIndex-this._currPositionIndex;if(!i)return;this._prevPositionIndex=this._currPositionIndex,e.currIndex=e.potentialIndex;let o=Math.abs(i),s;o>=3&&(this._containerShiftIndex+=i+(i>0?-3:3),o=3,this.itemHolders.forEach(r=>{var l;(l=r.slide)===null||l===void 0||l.destroy(),r.slide=void 0}));for(let r=0;r0?(s=this.itemHolders.shift(),s&&(this.itemHolders[2]=s,this._containerShiftIndex++,v(s.el,(this._containerShiftIndex+2)*this.slideWidth),e.setContent(s,e.currIndex-o+r+2))):(s=this.itemHolders.pop(),s&&(this.itemHolders.unshift(s),this._containerShiftIndex--,v(s.el,this._containerShiftIndex*this.slideWidth),e.setContent(s,e.currIndex+o-r-2)));Math.abs(this._containerShiftIndex)>50&&!this.isShifted()&&(this.resetPosition(),this.resize()),e.animations.stopAllPan(),this.itemHolders.forEach((r,l)=>{r.slide&&r.slide.setIsActive(l===1)}),e.currSlide=(t=this.itemHolders[1])===null||t===void 0?void 0:t.slide,e.contentLoader.updateLazy(i),e.currSlide&&e.currSlide.applyCurrentZoomPan(),e.dispatch("change")}moveTo(t,e){if(!this.pswp.canLoop()&&e){let i=(this.slideWidth*this._currPositionIndex-t)/this.slideWidth;i+=this.pswp.currIndex;let 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e||(e=this.pswp.createContentFromData(t.data,t.index),this.addToCache(e)),e.setSlide(t),e}addToCache(t){if(this.removeByIndex(t.index),this._cachedItems.push(t),this._cachedItems.length>this.limit){let e=this._cachedItems.findIndex(i=>!i.isAttached&&!i.hasSlide);e!==-1&&this._cachedItems.splice(e,1)[0].destroy()}}removeByIndex(t){let e=this._cachedItems.findIndex(i=>i.index===t);e!==-1&&this._cachedItems.splice(e,1)}getContentByIndex(t){return this._cachedItems.find(e=>e.index===t)}destroy(){this._cachedItems.forEach(t=>t.destroy()),this._cachedItems=[]}},ft=class extends ct{getNumItems(){var t;let e=0,i=(t=this.options)===null||t===void 0?void 0:t.dataSource;i&&"length"in i?e=i.length:i&&"gallery"in i&&(i.items||(i.items=this._getGalleryDOMElements(i.gallery)),i.items&&(e=i.items.length));let o=this.dispatch("numItems",{dataSource:i,numItems:e});return this.applyFilters("numItems",o.numItems,i)}createContentFromData(t,e){return new gt(t,this,e)}getItemData(t){var e;let i=(e=this.options)===null||e===void 0?void 0:e.dataSource,o={};Array.isArray(i)?o=i[t]:i&&"gallery"in i&&(i.items||(i.items=this._getGalleryDOMElements(i.gallery)),o=i.items[t]);let s=o;s instanceof Element&&(s=this._domElementToItemData(s));let r=this.dispatch("itemData",{itemData:s||{},index:t});return this.applyFilters("itemData",r.itemData,t)}_getGalleryDOMElements(t){var e,i;return(e=this.options)!==null&&e!==void 0&&e.children||(i=this.options)!==null&&i!==void 0&&i.childSelector?le(this.options.children,this.options.childSelector,t)||[]:[t]}_domElementToItemData(t){let e={element:t},i=t.tagName==="A"?t:t.querySelector("a");if(i){e.src=i.dataset.pswpSrc||i.href,i.dataset.pswpSrcset&&(e.srcset=i.dataset.pswpSrcset),e.width=i.dataset.pswpWidth?parseInt(i.dataset.pswpWidth,10):0,e.height=i.dataset.pswpHeight?parseInt(i.dataset.pswpHeight,10):0,e.w=e.width,e.h=e.height,i.dataset.pswpType&&(e.type=i.dataset.pswpType);let s=t.querySelector("img");if(s){var 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t=this.pswp.currSlide;this.isOpen=!1,this.isOpening=!1,this.isClosing=!0,this._duration=this.pswp.options.hideAnimationDuration,t&&t.currZoomLevel*t.width>=this.pswp.options.maxWidthToAnimate&&(this._duration=0),this._applyStartProps(),setTimeout(()=>{this._start()},this._croppedZoom?30:0)}_prepareOpen(){if(this.pswp.off("firstZoomPan",this._prepareOpen),!this.isOpening){let t=this.pswp.currSlide;this.isOpening=!0,this.isClosing=!1,this._duration=this.pswp.options.showAnimationDuration,t&&t.zoomLevels.initial*t.width>=this.pswp.options.maxWidthToAnimate&&(this._duration=0),this._applyStartProps()}}_applyStartProps(){let{pswp:t}=this,e=this.pswp.currSlide,{options:i}=t;if(i.showHideAnimationType==="fade"?(i.showHideOpacity=!0,this._thumbBounds=void 0):i.showHideAnimationType==="none"?(i.showHideOpacity=!1,this._duration=0,this._thumbBounds=void 0):this.isOpening&&t._initialThumbBounds?this._thumbBounds=t._initialThumbBounds:this._thumbBounds=this.pswp.getThumbBounds(),this._placeholder=e==null?void 0:e.getPlaceholderElement(),t.animations.stopAll(),this._useAnimation=!!(this._duration&&this._duration>50),this._animateZoom=!!this._thumbBounds&&(e==null?void 0:e.content.usePlaceholder())&&(!this.isClosing||!t.mainScroll.isShifted()),!this._animateZoom)this._animateRootOpacity=!0,this.isOpening&&e&&(e.zoomAndPanToInitial(),e.applyCurrentZoomPan());else{var o;this._animateRootOpacity=(o=i.showHideOpacity)!==null&&o!==void 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this._croppedZoom=!1;this.isOpening?(this._animateRootOpacity?(t.element&&(t.element.style.opacity=String(O)),t.applyBgOpacity(1)):(this._animateBgOpacity&&t.bg&&(t.bg.style.opacity=String(O)),t.element&&(t.element.style.opacity="1")),this._animateZoom&&(this._setClosedStateZoomPan(),this._placeholder&&(this._placeholder.style.willChange="transform",this._placeholder.style.opacity=String(O)))):this.isClosing&&(t.mainScroll.itemHolders[0]&&(t.mainScroll.itemHolders[0].el.style.display="none"),t.mainScroll.itemHolders[2]&&(t.mainScroll.itemHolders[2].el.style.display="none"),this._croppedZoom&&t.mainScroll.x!==0&&(t.mainScroll.resetPosition(),t.mainScroll.resize()))}_start(){this.isOpening&&this._useAnimation&&this._placeholder&&this._placeholder.tagName==="IMG"?new Promise(t=>{let e=!1,i=!0;ne(this._placeholder).finally(()=>{e=!0,i||t(!0)}),setTimeout(()=>{i=!1,e&&t(!0)},50),setTimeout(t,250)}).finally(()=>this._initiate()):this._initiate()}_initiate(){var t,e;(t=this.pswp.element)===null||t===void 0||t.style.setProperty("--pswp-transition-duration",this._duration+"ms"),this.pswp.dispatch(this.isOpening?"openingAnimationStart":"closingAnimationStart"),this.pswp.dispatch("initialZoom"+(this.isOpening?"In":"Out")),(e=this.pswp.element)===null||e===void 0||e.classList.toggle("pswp--ui-visible",this.isOpening),this.isOpening?(this._placeholder&&(this._placeholder.style.opacity="1"),this._animateToOpenState()):this.isClosing&&this._animateToClosedState(),this._useAnimation||this._onAnimationComplete()}_onAnimationComplete(){let{pswp:t}=this;if(this.isOpen=this.isOpening,this.isClosed=this.isClosing,this.isOpening=!1,this.isClosing=!1,t.dispatch(this.isOpen?"openingAnimationEnd":"closingAnimationEnd"),t.dispatch("initialZoom"+(this.isOpen?"InEnd":"OutEnd")),this.isClosed)t.destroy();else if(this.isOpen){var e;this._animateZoom&&t.container&&(t.container.style.overflow="visible",t.container.style.width="100%"),(e=t.currSlide)===null||e===void 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r=-s.x+(this._thumbBounds.x-i.x)+i.w,l=-s.y+(this._thumbBounds.y-i.y)+i.h,a=s.x-i.w,h=s.y-i.h;t?(this._animateTo(this._cropContainer1,"transform",B(r,l)),this._animateTo(this._cropContainer2,"transform",B(a,h))):(v(this._cropContainer1,r,l),v(this._cropContainer2,a,h))}o&&(g(o.pan,i||this._thumbBounds),o.currZoomLevel=this._thumbBounds.w/o.width,t?this._animateTo(o.container,"transform",o.getCurrentTransform()):o.applyCurrentZoomPan())}_animateTo(t,e,i){if(!this._duration){t.style[e]=i;return}let{animations:o}=this.pswp,s={duration:this._duration,easing:this.pswp.options.easing,onComplete:()=>{o.activeAnimations.length||this._onAnimationComplete()},target:t};s[e]=i,o.startTransition(s)}},ze={allowPanToNext:!0,spacing:.1,loop:!0,pinchToClose:!0,closeOnVerticalDrag:!0,hideAnimationDuration:333,showAnimationDuration:333,zoomAnimationDuration:333,escKey:!0,arrowKeys:!0,trapFocus:!0,returnFocus:!0,maxWidthToAnimate:4e3,clickToCloseNonZoomable:!0,imageClickAction:"zoom-or-close",bgClickAction:"close",tapAction:"toggle-controls",doubleTapAction:"zoom",indexIndicatorSep:" 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pswp--touch"),this.options.mainClass&&(t+=" "+this.options.mainClass),this.element&&(this.element.className+=" "+t),this.currIndex=this.options.index||0,this.potentialIndex=this.currIndex,this.dispatch("firstUpdate"),this.scrollWheel=new at(this),(Number.isNaN(this.currIndex)||this.currIndex<0||this.currIndex>=this.getNumItems())&&(this.currIndex=0),this.gestures.supportsTouch||this.mouseDetected(),this.updateSize(),this.offset.y=window.pageYOffset,this._initialItemData=this.getItemData(this.currIndex),this.dispatch("gettingData",{index:this.currIndex,data:this._initialItemData,slide:void 0}),this._initialThumbBounds=this.getThumbBounds(),this.dispatch("initialLayout"),this.on("openingAnimationEnd",()=>{let{itemHolders:e}=this.mainScroll;e[0]&&(e[0].el.style.display="block",this.setContent(e[0],this.currIndex-1)),e[2]&&(e[2].el.style.display="block",this.setContent(e[2],this.currIndex+1)),this.appendHeavy(),this.contentLoader.updateLazy(),this.events.add(window,"resize",this._handlePageResize.bind(this)),this.events.add(window,"scroll",this._updatePageScrollOffset.bind(this)),this.dispatch("bindEvents")}),this.mainScroll.itemHolders[1]&&this.setContent(this.mainScroll.itemHolders[1],this.currIndex),this.dispatch("change"),this.opener.open(),this.dispatch("afterInit"),!0}getLoopedIndex(t){let e=this.getNumItems();return this.options.loop&&(t>e-1&&(t-=e),t<0&&(t+=e)),P(t,0,e-1)}appendHeavy(){this.mainScroll.itemHolders.forEach(t=>{var e;(e=t.slide)===null||e===void 0||e.appendHeavy()})}goTo(t){this.mainScroll.moveIndexBy(this.getLoopedIndex(t)-this.potentialIndex)}next(){this.goTo(this.potentialIndex+1)}prev(){this.goTo(this.potentialIndex-1)}zoomTo(...t){var e;(e=this.currSlide)===null||e===void 0||e.zoomTo(...t)}toggleZoom(){var t;(t=this.currSlide)===null||t===void 0||t.toggleZoom()}close(){!this.opener.isOpen||this.isDestroying||(this.isDestroying=!0,this.dispatch("close"),this.events.removeAll(),this.opener.close())}destroy(){var t;if(!this.isDestroying){this.options.showHideAnimationType="none",this.close();return}this.dispatch("destroy"),this._listeners={},this.scrollWrap&&(this.scrollWrap.ontouchmove=null,this.scrollWrap.ontouchend=null),(t=this.element)===null||t===void 0||t.remove(),this.mainScroll.itemHolders.forEach(e=>{var i;(i=e.slide)===null||i===void 0||i.destroy()}),this.contentLoader.destroy(),this.events.removeAll()}refreshSlideContent(t){this.contentLoader.removeByIndex(t),this.mainScroll.itemHolders.forEach((e,i)=>{var 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r=this.dispatch("itemData",{itemData:s||{},index:t});return this.applyFilters("itemData",r.itemData,t)}_getGalleryDOMElements(t){var e,i;return(e=this.options)!==null&&e!==void 0&&e.children||(i=this.options)!==null&&i!==void 0&&i.childSelector?R(this.options.children,this.options.childSelector,t)||[]:[t]}_domElementToItemData(t){let e={element:t},i=t.tagName==="A"?t:t.querySelector("a");if(i){e.src=i.dataset.pswpSrc||i.href,i.dataset.pswpSrcset&&(e.srcset=i.dataset.pswpSrcset),e.width=i.dataset.pswpWidth?parseInt(i.dataset.pswpWidth,10):0,e.height=i.dataset.pswpHeight?parseInt(i.dataset.pswpHeight,10):0,e.w=e.width,e.h=e.height,i.dataset.pswpType&&(e.type=i.dataset.pswpType);let s=t.querySelector("img");if(s){var o;e.msrc=s.currentSrc||s.src,e.alt=(o=s.getAttribute("alt"))!==null&&o!==void 0?o:""}(i.dataset.pswpCropped||i.dataset.cropped)&&(e.thumbCropped=!0)}return this.applyFilters("domItemData",e,t,i)}lazyLoadData(t,e){return jt(t,this,e)}},D=class extends 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t=this.getFigure(),e=this.getEmptyCaption(),i=this.getImage(!!e),o=null,s=this.getEmptyLinkOrButton(),r=null;this.options.lightbox&&e&&s?(o=t,r=i,s.innerHTML=this.sanitizedTitle,t.appendChild(i),e.appendChild(s),e.classList.add("link")):this.options.lightbox&&e&&!s?(o=t,e.innerHTML=this.sanitizedTitle,t.appendChild(i),r=t):this.options.lightbox&&!e&&s?(o=t,r=t,t.appendChild(i),console.warn("Link or activation are ignored when lightbox is true and there is no caption because there is no element to support 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e;let t=new CustomEvent("select",{detail:this});(e=this._rootElement)==null||e.dispatchEvent(t)}toggleSelect(){this._selected?this.unselect():this.select()}throwNotSelectableError(){if(!this.options.selectable)throw Error("Gallery is not selectable")}select(){var t;this.throwNotSelectableError(),this._selected=!0,(t=this._rootElement)==null||t.classList.add("selected"),this.updateAriaSelectedStatus(),this.emitSelectEvent()}unselect(){var t;this.throwNotSelectableError(),this._selected=!1,(t=this._rootElement)==null||t.classList.remove("selected"),this.updateAriaSelectedStatus(),this.emitSelectEvent()}remove(){var t,e;(e=(t=this._rootElement)==null?void 0:t.parentNode)==null||e.removeChild(this._rootElement)}updateAriaSelectedStatus(){var t,e;(t=this._checkbox)==null||t.setAttribute("aria-checked",String(this._selected)),(e=this._checkbox)==null||e.setAttribute("aria-label",this._selected?"Unselect":"Select")}getEmptyLinkOrButton(){if(this.model.link){let t=this.document.createElement("a");return t.setAttribute("href",this.model.link),this.model.linkTarget&&t.setAttribute("target",this.model.linkTarget),t}else if(this.options.activable){let t=this.document.createElement("button");return t.classList.add("activation"),t.setAttribute("tabindex","0"),this.handleActivation(t),t}return null}showLabel(){let t=!1,e=["always","hover"];return this.sanitizedTitle&&this.options.labelVisibility&&e.includes(this.options.labelVisibility)&&(t=!0),t}getFigure(){let t=this.document.createElement("figure");return t.classList.add("figure"),t.setAttribute("role","group"),this.model.color&&(t.style.backgroundColor=this.model.color+"11"),t}getImage(t){let e=this.document.createElement("img");return e.setAttribute("src",this.model.thumbnailSrc),e.style.objectFit=this.model.objectFit||"cover",e.style.objectPosition=this.model.objectPosition||"center",e.classList.add("image"),e.setAttribute("loading","lazy"),e.addEventListener("load",()=>{var 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w=class{constructor(t,e,i){this.elementRef=t;this.scrollElementRef=i;this.options={gap:3,rowsPerPage:0,labelVisibility:"hover",lightbox:!1,minRowsAtStart:2,selectable:!1,activable:!1,infiniteScrollOffset:0,photoSwipeOptions:{loop:!1},photoSwipePluginsInitFn:null,ssr:{galleryWidth:480}};this.scrollBufferedItems=[];this.requiredItems=0;this.psLightbox=null;this.old_scroll_top=0;this.requestedIndexesLog=[];this._collection=[];this._domCollection=[];var a;this.document=this.elementRef.ownerDocument,this.options=U(e,this.options),this.flushBufferedItems=x(()=>{if(this.scrollBufferedItems.forEach(h=>{this.dispatchEvent("item-displayed",h)}),this.scrollBufferedItems=[],!!this.requiredItems&&this.requestedIndexesLog.indexOf(this.collection.length)<0){let 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e=this.domCollection.length-1;(i=t.rootElement)==null||i.addEventListener("zoom",()=>{var o;(o=this.psLightbox)==null||o.loadAndOpen(e)})}addItems(t){let e=this.collection.length===this.domCollection.length,i=this.collection.length;t.forEach(o=>{let s=X(this.options,["lightbox","selectable","activable","gap","labelVisibility"]),r=new k(this.document,s,o);this._collection.push(r)}),e&&i===0?this.onPageAdd():e&&i>0&&this.onScroll()}setLabelHover(t){this.options.labelVisibility=t?"hover":"always",this.collection.forEach(e=>{e.setLabelHover(t)})}selectCollection(){return this.selectItems(this.collection)}selectDomCollection(){return this.selectItems(this.domCollection)}selectItems(t){if(!this.options.selectable)throw Error("Gallery is not selectable");return t.forEach(e=>e.select()),this.selectedItems}unselectAllItems(){this.domCollection.forEach(t=>t.unselect())}addEventListener(t,e,i){this.elementRef.addEventListener(t,e,i),t==="pagination"&&this.requestItems()}clear(){this.empty(),this.requestItems()}getOptions(){return this.options}setItems(t){this.empty(),this.addItems(t)}photoSwipeInit(){this.psLightbox=new D(Bt(L({},this.options.photoSwipeOptions),{pswpModule:F})),this.psLightbox.addFilter("numItems",()=>this.domCollection.length),this.psLightbox.addFilter("itemData",(t,e)=>{let i=this.collection[e];return{id:e,src:i.model.enlargedSrc,w:i.model.enlargedWidth,h:i.model.enlargedHeight,msrc:i.model.thumbnailSrc,element:i.rootElement,thumbCropped:i.cropped,alt:i.sanitizedTitle}}),this.options.photoSwipePluginsInitFn&&this.options.photoSwipePluginsInitFn(this.psLightbox),this.psLightbox.init(),this.psLightbox.on("change",()=>{var t;(t=this.psLightbox)!=null&&t.pswp&&this.psLightbox.pswp.currIndex>this.domCollection.length-10&&this.onPageAdd()}),this.psLightbox.on("destroy",()=>{var t;(t=this.document.activeElement)==null||t.blur()})}requestItems(){let e=this.getEstimatedColumnsPerRow()*this.getRowsPerPage()+1;this.dispatchEvent("pagination",{offset:this.collection.length,limit:e})}getRowsPerPage(){if(this.options.rowsPerPage>0)return this.options.rowsPerPage;let t=this.getEstimatedRowsPerPage();return t{this.dispatchEvent("select",this.domCollection.filter(s=>s.selected))}),(o=t.rootElement)==null||o.addEventListener("activate",s=>{this.dispatchEvent("activate",{item:t,event:s.detail.event})}),this.options.lightbox&&this.addItemToPhotoSwipeCollection(t)}updateNextButtonVisibility(){this.domCollection.length===this.collection.length?this.nextButton.style.display="none":this.nextButton.style.display="block"}extendToFreeViewport(){this.options.rowsPerPage||(this.elementRef.style.minHeight=this.getGalleryVisibleHeight()+10+"px")}getGalleryVisibleHeight(){return this.document.defaultView?this.document.defaultView.innerHeight-this.elementRef.offsetTop:0}startResize(){var t;(t=this.bodyElementRef)==null||t.classList.add("resizing")}endResize(){var t;(t=this.bodyElementRef)==null||t.classList.remove("resizing")}dispatchEvent(t,e){try{let i=new CustomEvent(t,{detail:e});this.elementRef.dispatchEvent(i)}catch(i){}}empty(){this.bodyElementRef.innerHTML="",this.requestedIndexesLog.length=0,this._domCollection=[],this._collection=[]}bindScroll(t){let e=t,i=t instanceof Document?t.documentElement:t,o=x(()=>this.elementRef.classList.add("scrolling"),100,{edges:["leading"]}),s=x(()=>this.elementRef.classList.remove("scrolling"),150);e.addEventListener("scroll",()=>{let r=this.elementRef.offsetTop+this.elementRef.offsetHeight+this.options.infiniteScrollOffset,l=i.scrollTop-(i.clientTop||0),a=i.clientHeight,h=l-this.old_scroll_top;Math.abs(h)>0&&(o(),s()),this.old_scroll_top=l,h>0&&l+a>=r&&this.onScroll()})}get rootElement(){return this.elementRef}get bodyElement(){return this.bodyElementRef}};var _=class extends w{constructor(e,i,o){super(e,i,o);this.elementRef=e;this.scrollElementRef=o;this.bodyElementRef.style.rowGap=this.options.gap+"px"}onScroll(){this.addRows(1)}onPageAdd(){this.addRows(this.getRowsPerPage())}addRows(e){let i=this.domCollection.length,o=this.domCollection.length?this.domCollection[i-1].row+1:0,s=o+e-1,r=this.collection.slice(i);this.organizeItems(r,o,s),r.filter(a=>a.row<=s).forEach(a=>this.addItemToDOM(a)),this.flushBufferedItems(),this.updateNextButtonVisibility()}endResize(){super.endResize(),this.domCollection.length&&this.organizeItems(this.domCollection)}};var St=class n extends _{constructor(t,e,i){if(super(t,e,i),!e.rowHeight||e.rowHeight<=0)throw new Error("Option.rowHeight must be positive")}static organizeItems(t,e,i=0,o=null,s=null){s||(s=i||0);let r=t.options;for(let l=1;l<=e.length;l++){let a=e.slice(0,l);if(this.getRowWidth(a.map(p=>p.model),r.rowHeight,r.gap,r.ratioLimit)>=t.width){this.computeSizes(a,t.width,r.gap,s,null,r.ratioLimit);let p=s+1;(o===null||p<=o)&&n.organizeItems(t,e.slice(l),i,o,p);break}else if(l===e.length){this.computeSizes(a,null,r.gap,s,r.rowHeight,r.ratioLimit);break}}}static computeSizes(t,e,i,o,s=null,r){let l=t.map(m=>m.model),a=e?this.getRowHeight(l,e,i,r):s!=null?s:0,p=(this.getRowWidth(l,a,i,r)-(e!=null?e:0))/t.length,d=e?p:0,c=0;for(let m=0;m=1||m===t.length-1&&Math.round(c)===1)&&(b++,c--),u.width=b,u.height=Math.floor(a),u.cropped=S,u.row=o,u.style()}}static getRowWidth(t,e,i,o){return i*(t.length-1)+this.getRatios(t,o)*e}static getRowHeight(t,e,i,o){return(e-i*(t.length-1))/this.getRatios(t,o)}static getRatios(t,e){return t.reduce((i,o)=>i+Jt(o,e),0)}addRows(t){this.completeLastRow(),super.addRows(t)}organizeItems(t,e,i){n.organizeItems(this,t,e,i)}getFormatName(){return"format-natural"}endResize(){super.endResize(),this.completeLastRow(),this.flushBufferedItems()}getEstimatedColumnsPerRow(){let t=1;return this.options.ratioLimit&&this.options.ratioLimit.min&&(t=this.options.ratioLimit.min),Math.ceil((1/t*this.width+this.options.gap)/(this.options.rowHeight+this.options.gap))}getEstimatedRowsPerPage(){return Math.ceil(this.getGalleryVisibleHeight()/(this.options.rowHeight+this.options.gap))+1}completeLastRow(){if(!this.domCollection.length)return;let t=this.domCollection[this.domCollection.length-1].row,e=this.domCollection.filter(s=>s.row===t).length,i=this.collection.slice(this.domCollection.length-e);this.organizeItems(i,i[0].row,i[0].row),i.slice(e).filter(s=>s.row<=i[0].row).forEach(s=>this.addItemToDOM(s))}};var V=class{constructor(t,e){this.options=e;this.collection=[];this._elementRef=t.createElement("div"),this._elementRef.classList.add("column"),this._elementRef.style.width=this.options.width+"px",this._elementRef.style.gap=this.options.gap+"px"}get height(){return this._elementRef.offsetHeight}get elementRef(){return this._elementRef}addItem(t){this.collection.push(t)}};var Lt=class n extends w{constructor(e,i,o){super(e,i,o);this.columns=[];if(!i.columnWidth||i.columnWidth<=0)throw new Error("Option.columnWidth must be positive");if(this.addColumns(),!this.options.infiniteScrollOffset){let s=.5;this.options.ratioLimit&&this.options.ratioLimit.min&&(s=this.options.ratioLimit.min);let r=this.getColumnWidth();this.options.infiniteScrollOffset=-1*r/s}}static organizeItems(e,i,o=0,s=null){let r=e.getEstimatedColumnsPerRow(),l=e.getColumnWidth(),a=s?r*(s-o+1):i.length;a=a>i.length?i.length:a;for(let h=0;he.elementRef.getBoundingClientRect().bottome?i.heighte.length?e.length:r;for(let l=0;l {\n if (pendingArgs !== null) {\n func.apply(pendingThis, pendingArgs);\n pendingThis = undefined;\n pendingArgs = null;\n }\n };\n const onTimerEnd = () => {\n if (trailing) {\n invoke();\n }\n cancel();\n };\n let timeoutId = null;\n const schedule = () => {\n if (timeoutId != null) {\n clearTimeout(timeoutId);\n }\n timeoutId = setTimeout(() => {\n timeoutId = null;\n onTimerEnd();\n }, debounceMs);\n };\n const cancelTimer = () => {\n if (timeoutId !== null) {\n clearTimeout(timeoutId);\n timeoutId = null;\n }\n };\n const cancel = () => {\n cancelTimer();\n pendingThis = undefined;\n pendingArgs = null;\n };\n const flush = () => {\n cancelTimer();\n invoke();\n };\n const debounced = function (...args) {\n if (signal?.aborted) {\n return;\n }\n pendingThis = this;\n pendingArgs = args;\n const isFirstCall = timeoutId == null;\n schedule();\n if (leading && isFirstCall) {\n invoke();\n }\n };\n debounced.schedule = schedule;\n debounced.cancel = cancel;\n debounced.flush = flush;\n signal?.addEventListener('abort', cancel, { once: true });\n return debounced;\n}\n\nexport { debounce };\n","function pick(obj, keys) {\n const result = {};\n for (let i = 0; i < keys.length; i++) {\n const key = keys[i];\n if (Object.hasOwn(obj, key)) {\n result[key] = obj[key];\n }\n }\n return result;\n}\n\nexport { pick };\n","function isPlainObject(object) {\n if (typeof object !== 'object') {\n return false;\n }\n if (object == null) {\n return false;\n }\n if (Object.getPrototypeOf(object) === null) {\n return true;\n }\n if (Object.prototype.toString.call(object) !== '[object Object]') {\n const tag = object[Symbol.toStringTag];\n if (tag == null) {\n return false;\n }\n const isTagReadonly = !Object.getOwnPropertyDescriptor(object, Symbol.toStringTag)?.writable;\n if (isTagReadonly) {\n return false;\n }\n return object.toString() === `[object ${tag}]`;\n }\n let proto = object;\n while (Object.getPrototypeOf(proto) !== null) {\n proto = Object.getPrototypeOf(proto);\n }\n return Object.getPrototypeOf(object) === proto;\n}\n\nexport { isPlainObject };\n","import { isPlainObject } from '../predicate/isPlainObject.mjs';\n\nfunction defaultsDeep(target, ...sources) {\n target = Object(target);\n for (let i = 0; i < sources.length; i++) {\n const source = sources[i];\n if (source != null) {\n const stack = new WeakMap();\n defaultsDeepRecursive(target, source, stack);\n }\n }\n return target;\n}\nfunction defaultsDeepRecursive(target, source, stack) {\n for (const key in source) {\n const sourceValue = source[key];\n const targetValue = target[key];\n const targetHasKey = Object.hasOwn(target, key);\n if (!targetHasKey || targetValue === undefined) {\n if (stack.has(sourceValue)) {\n target[key] = stack.get(sourceValue);\n }\n else if (isPlainObject(sourceValue)) {\n const newObj = {};\n stack.set(sourceValue, newObj);\n target[key] = newObj;\n defaultsDeepRecursive(newObj, sourceValue, stack);\n }\n else {\n target[key] = sourceValue;\n }\n }\n else if (isPlainObject(targetValue) && isPlainObject(sourceValue)) {\n const inStack = stack.has(sourceValue);\n if (!inStack || (inStack && stack.get(sourceValue) !== targetValue)) {\n stack.set(sourceValue, targetValue);\n defaultsDeepRecursive(targetValue, sourceValue, stack);\n }\n }\n }\n}\n\nexport { defaultsDeep };\n","/** @typedef {import('../photoswipe.js').Point} Point */\r\n\r\n/**\r\n * @template {keyof HTMLElementTagNameMap} T\r\n * @param {string} className\r\n * @param {T} tagName\r\n * @param {Node} [appendToEl]\r\n * @returns {HTMLElementTagNameMap[T]}\r\n */\r\nexport function createElement(className, tagName, appendToEl) {\r\n const el = document.createElement(tagName);\r\n if (className) {\r\n el.className = className;\r\n }\r\n if (appendToEl) {\r\n appendToEl.appendChild(el);\r\n }\r\n return el;\r\n}\r\n\r\n/**\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {Point}\r\n */\r\nexport function equalizePoints(p1, p2) {\r\n p1.x = p2.x;\r\n p1.y = p2.y;\r\n if (p2.id !== undefined) {\r\n p1.id = p2.id;\r\n }\r\n return p1;\r\n}\r\n\r\n/**\r\n * @param {Point} p\r\n */\r\nexport function roundPoint(p) {\r\n p.x = Math.round(p.x);\r\n p.y = Math.round(p.y);\r\n}\r\n\r\n/**\r\n * Returns distance between two points.\r\n *\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {number}\r\n */\r\nexport function getDistanceBetween(p1, p2) {\r\n const x = Math.abs(p1.x - p2.x);\r\n const y = Math.abs(p1.y - p2.y);\r\n return Math.sqrt((x * x) + (y * y));\r\n}\r\n\r\n/**\r\n * Whether X and Y positions of points are equal\r\n *\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {boolean}\r\n */\r\nexport function pointsEqual(p1, p2) {\r\n return p1.x === p2.x && p1.y === p2.y;\r\n}\r\n\r\n/**\r\n * The float result between the min and max values.\r\n *\r\n * @param {number} val\r\n * @param {number} min\r\n * @param {number} max\r\n * @returns {number}\r\n */\r\nexport function clamp(val, min, max) {\r\n return Math.min(Math.max(val, min), max);\r\n}\r\n\r\n/**\r\n * Get transform string\r\n *\r\n * @param {number} x\r\n * @param {number} [y]\r\n * @param {number} [scale]\r\n * @returns {string}\r\n */\r\nexport function toTransformString(x, y, scale) {\r\n let propValue = `translate3d(${x}px,${y || 0}px,0)`;\r\n\r\n if (scale !== undefined) {\r\n propValue += ` scale3d(${scale},${scale},1)`;\r\n }\r\n\r\n return propValue;\r\n}\r\n\r\n/**\r\n * Apply transform:translate(x, y) scale(scale) to element\r\n *\r\n * @param {HTMLElement} el\r\n * @param {number} x\r\n * @param {number} [y]\r\n * @param {number} [scale]\r\n */\r\nexport function setTransform(el, x, y, scale) {\r\n el.style.transform = toTransformString(x, y, scale);\r\n}\r\n\r\nconst defaultCSSEasing = 'cubic-bezier(.4,0,.22,1)';\r\n\r\n/**\r\n * Apply CSS transition to element\r\n *\r\n * @param {HTMLElement} el\r\n * @param {string} [prop] CSS property to animate\r\n * @param {number} [duration] in ms\r\n * @param {string} [ease] CSS easing function\r\n */\r\nexport function setTransitionStyle(el, prop, duration, ease) {\r\n // inOut: 'cubic-bezier(.4, 0, .22, 1)', // for \"toggle state\" transitions\r\n // out: 'cubic-bezier(0, 0, .22, 1)', // for \"show\" transitions\r\n // in: 'cubic-bezier(.4, 0, 1, 1)'// for \"hide\" transitions\r\n el.style.transition = prop\r\n ? `${prop} ${duration}ms ${ease || defaultCSSEasing}`\r\n : 'none';\r\n}\r\n\r\n/**\r\n * Apply width and height CSS properties to element\r\n *\r\n * @param {HTMLElement} el\r\n * @param {string | number} w\r\n * @param {string | number} h\r\n */\r\nexport function setWidthHeight(el, w, h) {\r\n el.style.width = (typeof w === 'number') ? `${w}px` : w;\r\n el.style.height = (typeof h === 'number') ? `${h}px` : h;\r\n}\r\n\r\n/**\r\n * @param {HTMLElement} el\r\n */\r\nexport function removeTransitionStyle(el) {\r\n setTransitionStyle(el);\r\n}\r\n\r\n/**\r\n * @param {HTMLImageElement} img\r\n * @returns {Promise}\r\n */\r\nexport function decodeImage(img) {\r\n if ('decode' in img) {\r\n return img.decode().catch(() => {});\r\n }\r\n\r\n if (img.complete) {\r\n return Promise.resolve(img);\r\n }\r\n\r\n return new Promise((resolve, reject) => {\r\n img.onload = () => resolve(img);\r\n img.onerror = reject;\r\n });\r\n}\r\n\r\n/** @typedef {LOAD_STATE[keyof LOAD_STATE]} LoadState */\r\n/** @type {{ IDLE: 'idle'; LOADING: 'loading'; LOADED: 'loaded'; ERROR: 'error' }} */\r\nexport const LOAD_STATE = {\r\n IDLE: 'idle',\r\n LOADING: 'loading',\r\n LOADED: 'loaded',\r\n ERROR: 'error',\r\n};\r\n\r\n\r\n/**\r\n * Check if click or keydown event was dispatched\r\n * with a special key or via mouse wheel.\r\n *\r\n * @param {MouseEvent | KeyboardEvent} e\r\n * @returns {boolean}\r\n */\r\nexport function specialKeyUsed(e) {\r\n return ('button' in e && e.button === 1) || e.ctrlKey || e.metaKey || e.altKey || e.shiftKey;\r\n}\r\n\r\n/**\r\n * Parse `gallery` or `children` options.\r\n *\r\n * @param {import('../photoswipe.js').ElementProvider} [option]\r\n * @param {string} [legacySelector]\r\n * @param {HTMLElement | Document} [parent]\r\n * @returns HTMLElement[]\r\n */\r\nexport function getElementsFromOption(option, legacySelector, parent = document) {\r\n /** @type {HTMLElement[]} */\r\n let elements = [];\r\n\r\n if (option instanceof Element) {\r\n elements = [option];\r\n } else if (option instanceof NodeList || Array.isArray(option)) {\r\n elements = Array.from(option);\r\n } else {\r\n const selector = typeof option === 'string' ? option : legacySelector;\r\n if (selector) {\r\n elements = Array.from(parent.querySelectorAll(selector));\r\n }\r\n }\r\n\r\n return elements;\r\n}\r\n\r\n/**\r\n * Check if variable is PhotoSwipe class\r\n *\r\n * @param {any} fn\r\n * @returns {boolean}\r\n */\r\nexport function isPswpClass(fn) {\r\n return typeof fn === 'function'\r\n && fn.prototype\r\n && fn.prototype.goTo;\r\n}\r\n\r\n/**\r\n * Check if browser is Safari\r\n *\r\n * @returns {boolean}\r\n */\r\nexport function isSafari() {\r\n return !!(navigator.vendor && navigator.vendor.match(/apple/i));\r\n}\r\n\r\n","// Detect passive event listener support\r\nlet supportsPassive = false;\r\n/* eslint-disable */\r\ntry {\r\n /* @ts-ignore */\r\n window.addEventListener('test', null, Object.defineProperty({}, 'passive', {\r\n get: () => {\r\n supportsPassive = true;\r\n }\r\n }));\r\n} catch (e) {}\r\n/* eslint-enable */\r\n\r\n/**\r\n * @typedef {Object} PoolItem\r\n * @prop {HTMLElement | Window | Document | undefined | null} target\r\n * @prop {string} type\r\n * @prop {EventListenerOrEventListenerObject} listener\r\n * @prop {boolean} [passive]\r\n */\r\n\r\nclass DOMEvents {\r\n constructor() {\r\n /**\r\n * @type {PoolItem[]}\r\n * @private\r\n */\r\n this._pool = [];\r\n }\r\n\r\n /**\r\n * Adds event listeners\r\n *\r\n * @param {PoolItem['target']} target\r\n * @param {PoolItem['type']} type Can be multiple, separated by space.\r\n * @param {PoolItem['listener']} listener\r\n * @param {PoolItem['passive']} [passive]\r\n */\r\n add(target, type, listener, passive) {\r\n this._toggleListener(target, type, listener, passive);\r\n }\r\n\r\n /**\r\n * Removes event listeners\r\n *\r\n * @param {PoolItem['target']} target\r\n * @param {PoolItem['type']} type\r\n * @param {PoolItem['listener']} listener\r\n * @param {PoolItem['passive']} [passive]\r\n */\r\n remove(target, type, listener, passive) {\r\n this._toggleListener(target, type, listener, passive, true);\r\n }\r\n\r\n /**\r\n * Removes all bound events\r\n */\r\n removeAll() {\r\n this._pool.forEach((poolItem) => {\r\n this._toggleListener(\r\n poolItem.target,\r\n poolItem.type,\r\n poolItem.listener,\r\n poolItem.passive,\r\n true,\r\n true\r\n );\r\n });\r\n this._pool = [];\r\n }\r\n\r\n /**\r\n * Adds or removes event\r\n *\r\n * @private\r\n * @param {PoolItem['target']} target\r\n * @param {PoolItem['type']} type\r\n * @param {PoolItem['listener']} listener\r\n * @param {PoolItem['passive']} [passive]\r\n * @param {boolean} [unbind] Whether the event should be added or removed\r\n * @param {boolean} [skipPool] Whether events pool should be skipped\r\n */\r\n _toggleListener(target, type, listener, passive, unbind, skipPool) {\r\n if (!target) {\r\n return;\r\n }\r\n\r\n const methodName = unbind ? 'removeEventListener' : 'addEventListener';\r\n const types = type.split(' ');\r\n types.forEach((eType) => {\r\n if (eType) {\r\n // Events pool is used to easily unbind all events when PhotoSwipe is closed,\r\n // so developer doesn't need to do this manually\r\n if (!skipPool) {\r\n if (unbind) {\r\n // Remove from the events pool\r\n this._pool = this._pool.filter((poolItem) => {\r\n return poolItem.type !== eType\r\n || poolItem.listener !== listener\r\n || poolItem.target !== target;\r\n });\r\n } else {\r\n // Add to the events pool\r\n this._pool.push({\r\n target,\r\n type: eType,\r\n listener,\r\n passive\r\n });\r\n }\r\n }\r\n\r\n // most PhotoSwipe events call preventDefault,\r\n // and we do not need browser to scroll the page\r\n const eventOptions = supportsPassive ? { passive: (passive || false) } : false;\r\n\r\n target[methodName](\r\n eType,\r\n listener,\r\n eventOptions\r\n );\r\n }\r\n });\r\n }\r\n}\r\n\r\nexport default DOMEvents;\r\n","/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../core/base.js').default} PhotoSwipeBase */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('../slide/slide.js').SlideData} SlideData */\r\n\r\n/**\r\n * @param {PhotoSwipeOptions} options\r\n * @param {PhotoSwipeBase} pswp\r\n * @returns {Point}\r\n */\r\nexport function getViewportSize(options, pswp) {\r\n if (options.getViewportSizeFn) {\r\n const newViewportSize = options.getViewportSizeFn(options, pswp);\r\n if (newViewportSize) {\r\n return newViewportSize;\r\n }\r\n }\r\n\r\n return {\r\n x: document.documentElement.clientWidth,\r\n\r\n // TODO: height on mobile is very incosistent due to toolbar\r\n // find a way to improve this\r\n //\r\n // document.documentElement.clientHeight - doesn't seem to work well\r\n y: window.innerHeight\r\n };\r\n}\r\n\r\n/**\r\n * Parses padding option.\r\n * Supported formats:\r\n *\r\n * // Object\r\n * padding: {\r\n * top: 0,\r\n * bottom: 0,\r\n * left: 0,\r\n * right: 0\r\n * }\r\n *\r\n * // A function that returns the object\r\n * paddingFn: (viewportSize, itemData, index) => {\r\n * return {\r\n * top: 0,\r\n * bottom: 0,\r\n * left: 0,\r\n * right: 0\r\n * };\r\n * }\r\n *\r\n * // Legacy variant\r\n * paddingLeft: 0,\r\n * paddingRight: 0,\r\n * paddingTop: 0,\r\n * paddingBottom: 0,\r\n *\r\n * @param {'left' | 'top' | 'bottom' | 'right'} prop\r\n * @param {PhotoSwipeOptions} options PhotoSwipe options\r\n * @param {Point} viewportSize PhotoSwipe viewport size, for example: { x:800, y:600 }\r\n * @param {SlideData} itemData Data about the slide\r\n * @param {number} index Slide index\r\n * @returns {number}\r\n */\r\nexport function parsePaddingOption(prop, options, viewportSize, itemData, index) {\r\n let paddingValue = 0;\r\n\r\n if (options.paddingFn) {\r\n paddingValue = options.paddingFn(viewportSize, itemData, index)[prop];\r\n } else if (options.padding) {\r\n paddingValue = options.padding[prop];\r\n } else {\r\n const legacyPropName = 'padding' + prop[0].toUpperCase() + prop.slice(1);\r\n // @ts-expect-error\r\n if (options[legacyPropName]) {\r\n // @ts-expect-error\r\n paddingValue = options[legacyPropName];\r\n }\r\n }\r\n\r\n return Number(paddingValue) || 0;\r\n}\r\n\r\n/**\r\n * @param {PhotoSwipeOptions} options\r\n * @param {Point} viewportSize\r\n * @param {SlideData} itemData\r\n * @param {number} index\r\n * @returns {Point}\r\n */\r\nexport function getPanAreaSize(options, viewportSize, itemData, index) {\r\n return {\r\n x: viewportSize.x\r\n - parsePaddingOption('left', options, viewportSize, itemData, index)\r\n - parsePaddingOption('right', options, viewportSize, itemData, index),\r\n y: viewportSize.y\r\n - parsePaddingOption('top', options, viewportSize, itemData, index)\r\n - parsePaddingOption('bottom', options, viewportSize, itemData, index)\r\n };\r\n}\r\n","import { clamp } from '../util/util.js';\r\nimport { parsePaddingOption } from '../util/viewport-size.js';\r\n\r\n/** @typedef {import('./slide.js').default} Slide */\r\n/** @typedef {Record} Point */\r\n/** @typedef {'x' | 'y'} Axis */\r\n\r\n/**\r\n * Calculates minimum, maximum and initial (center) bounds of a slide\r\n */\r\nclass PanBounds {\r\n /**\r\n * @param {Slide} slide\r\n */\r\n constructor(slide) {\r\n this.slide = slide;\r\n this.currZoomLevel = 1;\r\n this.center = /** @type {Point} */ { x: 0, y: 0 };\r\n this.max = /** @type {Point} */ { x: 0, y: 0 };\r\n this.min = /** @type {Point} */ { x: 0, y: 0 };\r\n }\r\n\r\n /**\r\n * _getItemBounds\r\n *\r\n * @param {number} currZoomLevel\r\n */\r\n update(currZoomLevel) {\r\n this.currZoomLevel = currZoomLevel;\r\n\r\n if (!this.slide.width) {\r\n this.reset();\r\n } else {\r\n this._updateAxis('x');\r\n this._updateAxis('y');\r\n this.slide.pswp.dispatch('calcBounds', { slide: this.slide });\r\n }\r\n }\r\n\r\n /**\r\n * _calculateItemBoundsForAxis\r\n *\r\n * @param {Axis} axis\r\n */\r\n _updateAxis(axis) {\r\n const { pswp } = this.slide;\r\n const elSize = this.slide[axis === 'x' ? 'width' : 'height'] * this.currZoomLevel;\r\n const paddingProp = axis === 'x' ? 'left' : 'top';\r\n const padding = parsePaddingOption(\r\n paddingProp,\r\n pswp.options,\r\n pswp.viewportSize,\r\n this.slide.data,\r\n this.slide.index\r\n );\r\n\r\n const panAreaSize = this.slide.panAreaSize[axis];\r\n\r\n // Default position of element.\r\n // By default, it is center of viewport:\r\n this.center[axis] = Math.round((panAreaSize - elSize) / 2) + padding;\r\n\r\n // maximum pan position\r\n this.max[axis] = (elSize > panAreaSize)\r\n ? Math.round(panAreaSize - elSize) + padding\r\n : this.center[axis];\r\n\r\n // minimum pan position\r\n this.min[axis] = (elSize > panAreaSize)\r\n ? padding\r\n : this.center[axis];\r\n }\r\n\r\n // _getZeroBounds\r\n reset() {\r\n this.center.x = 0;\r\n this.center.y = 0;\r\n this.max.x = 0;\r\n this.max.y = 0;\r\n this.min.x = 0;\r\n this.min.y = 0;\r\n }\r\n\r\n /**\r\n * Correct pan position if it's beyond the bounds\r\n *\r\n * @param {Axis} axis x or y\r\n * @param {number} panOffset\r\n * @returns {number}\r\n */\r\n correctPan(axis, panOffset) { // checkPanBounds\r\n return clamp(panOffset, this.max[axis], this.min[axis]);\r\n }\r\n}\r\n\r\nexport default PanBounds;\r\n","const MAX_IMAGE_WIDTH = 4000;\r\n\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('../slide/slide.js').SlideData} SlideData */\r\n\r\n/** @typedef {'fit' | 'fill' | number | ((zoomLevelObject: ZoomLevel) => number)} ZoomLevelOption */\r\n\r\n/**\r\n * Calculates zoom levels for specific slide.\r\n * Depends on viewport size and image size.\r\n */\r\nclass ZoomLevel {\r\n /**\r\n * @param {PhotoSwipeOptions} options PhotoSwipe options\r\n * @param {SlideData} itemData Slide data\r\n * @param {number} index Slide index\r\n * @param {PhotoSwipe} [pswp] PhotoSwipe instance, can be undefined if not initialized yet\r\n */\r\n constructor(options, itemData, index, pswp) {\r\n this.pswp = pswp;\r\n this.options = options;\r\n this.itemData = itemData;\r\n this.index = index;\r\n /** @type { Point | null } */\r\n this.panAreaSize = null;\r\n /** @type { Point | null } */\r\n this.elementSize = null;\r\n this.fit = 1;\r\n this.fill = 1;\r\n this.vFill = 1;\r\n this.initial = 1;\r\n this.secondary = 1;\r\n this.max = 1;\r\n this.min = 1;\r\n }\r\n\r\n /**\r\n * Calculate initial, secondary and maximum zoom level for the specified slide.\r\n *\r\n * It should be called when either image or viewport size changes.\r\n *\r\n * @param {number} maxWidth\r\n * @param {number} maxHeight\r\n * @param {Point} panAreaSize\r\n */\r\n update(maxWidth, maxHeight, panAreaSize) {\r\n /** @type {Point} */\r\n const elementSize = { x: maxWidth, y: maxHeight };\r\n this.elementSize = elementSize;\r\n this.panAreaSize = panAreaSize;\r\n\r\n const hRatio = panAreaSize.x / elementSize.x;\r\n const vRatio = panAreaSize.y / elementSize.y;\r\n\r\n this.fit = Math.min(1, hRatio < vRatio ? hRatio : vRatio);\r\n this.fill = Math.min(1, hRatio > vRatio ? hRatio : vRatio);\r\n\r\n // zoom.vFill defines zoom level of the image\r\n // when it has 100% of viewport vertical space (height)\r\n this.vFill = Math.min(1, vRatio);\r\n\r\n this.initial = this._getInitial();\r\n this.secondary = this._getSecondary();\r\n this.max = Math.max(\r\n this.initial,\r\n this.secondary,\r\n this._getMax()\r\n );\r\n\r\n this.min = Math.min(\r\n this.fit,\r\n this.initial,\r\n this.secondary\r\n );\r\n\r\n if (this.pswp) {\r\n this.pswp.dispatch('zoomLevelsUpdate', { zoomLevels: this, slideData: this.itemData });\r\n }\r\n }\r\n\r\n /**\r\n * Parses user-defined zoom option.\r\n *\r\n * @private\r\n * @param {'initial' | 'secondary' | 'max'} optionPrefix Zoom level option prefix (initial, secondary, max)\r\n * @returns { number | undefined }\r\n */\r\n _parseZoomLevelOption(optionPrefix) {\r\n const optionName = /** @type {'initialZoomLevel' | 'secondaryZoomLevel' | 'maxZoomLevel'} */ (\r\n optionPrefix + 'ZoomLevel'\r\n );\r\n const optionValue = this.options[optionName];\r\n\r\n if (!optionValue) {\r\n return;\r\n }\r\n\r\n if (typeof optionValue === 'function') {\r\n return optionValue(this);\r\n }\r\n\r\n if (optionValue === 'fill') {\r\n return this.fill;\r\n }\r\n\r\n if (optionValue === 'fit') {\r\n return this.fit;\r\n }\r\n\r\n return Number(optionValue);\r\n }\r\n\r\n /**\r\n * Get zoom level to which image will be zoomed after double-tap gesture,\r\n * or when user clicks on zoom icon,\r\n * or mouse-click on image itself.\r\n * If you return 1 image will be zoomed to its original size.\r\n *\r\n * @private\r\n * @return {number}\r\n */\r\n _getSecondary() {\r\n let currZoomLevel = this._parseZoomLevelOption('secondary');\r\n\r\n if (currZoomLevel) {\r\n return currZoomLevel;\r\n }\r\n\r\n // 3x of \"fit\" state, but not larger than original\r\n currZoomLevel = Math.min(1, this.fit * 3);\r\n\r\n if (this.elementSize && currZoomLevel * this.elementSize.x > MAX_IMAGE_WIDTH) {\r\n currZoomLevel = MAX_IMAGE_WIDTH / this.elementSize.x;\r\n }\r\n\r\n return currZoomLevel;\r\n }\r\n\r\n /**\r\n * Get initial image zoom level.\r\n *\r\n * @private\r\n * @return {number}\r\n */\r\n _getInitial() {\r\n return this._parseZoomLevelOption('initial') || this.fit;\r\n }\r\n\r\n /**\r\n * Maximum zoom level when user zooms\r\n * via zoom/pinch gesture,\r\n * via cmd/ctrl-wheel or via trackpad.\r\n *\r\n * @private\r\n * @return {number}\r\n */\r\n _getMax() {\r\n // max zoom level is x4 from \"fit state\",\r\n // used for zoom gesture and ctrl/trackpad zoom\r\n return this._parseZoomLevelOption('max') || Math.max(1, this.fit * 4);\r\n }\r\n}\r\n\r\nexport default ZoomLevel;\r\n","/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n\r\n/**\r\n * @typedef {_SlideData & Record} SlideData\r\n * @typedef {Object} _SlideData\r\n * @prop {HTMLElement} [element] thumbnail element\r\n * @prop {string} [src] image URL\r\n * @prop {string} [srcset] image srcset\r\n * @prop {number} [w] image width (deprecated)\r\n * @prop {number} [h] image height (deprecated)\r\n * @prop {number} [width] image width\r\n * @prop {number} [height] image height\r\n * @prop {string} [msrc] placeholder image URL that's displayed before large image is loaded\r\n * @prop {string} [alt] image alt text\r\n * @prop {boolean} [thumbCropped] whether thumbnail is cropped client-side or not\r\n * @prop {string} [html] html content of a slide\r\n * @prop {'image' | 'html' | string} [type] slide type\r\n */\r\n\r\nimport {\r\n createElement,\r\n setTransform,\r\n equalizePoints,\r\n roundPoint,\r\n toTransformString,\r\n clamp,\r\n} from '../util/util.js';\r\n\r\nimport PanBounds from './pan-bounds.js';\r\nimport ZoomLevel from './zoom-level.js';\r\nimport { getPanAreaSize } from '../util/viewport-size.js';\r\n\r\n/**\r\n * Renders and allows to control a single slide\r\n */\r\nclass Slide {\r\n /**\r\n * @param {SlideData} data\r\n * @param {number} index\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(data, index, pswp) {\r\n this.data = data;\r\n this.index = index;\r\n this.pswp = pswp;\r\n this.isActive = (index === pswp.currIndex);\r\n this.currentResolution = 0;\r\n /** @type {Point} */\r\n this.panAreaSize = { x: 0, y: 0 };\r\n /** @type {Point} */\r\n this.pan = { x: 0, y: 0 };\r\n\r\n this.isFirstSlide = (this.isActive && !pswp.opener.isOpen);\r\n\r\n this.zoomLevels = new ZoomLevel(pswp.options, data, index, pswp);\r\n\r\n this.pswp.dispatch('gettingData', {\r\n slide: this,\r\n data: this.data,\r\n index\r\n });\r\n\r\n this.content = this.pswp.contentLoader.getContentBySlide(this);\r\n this.container = createElement('pswp__zoom-wrap', 'div');\r\n /** @type {HTMLElement | null} */\r\n this.holderElement = null;\r\n\r\n this.currZoomLevel = 1;\r\n /** @type {number} */\r\n this.width = this.content.width;\r\n /** @type {number} */\r\n this.height = this.content.height;\r\n this.heavyAppended = false;\r\n this.bounds = new PanBounds(this);\r\n\r\n this.prevDisplayedWidth = -1;\r\n this.prevDisplayedHeight = -1;\r\n\r\n this.pswp.dispatch('slideInit', { slide: this });\r\n }\r\n\r\n /**\r\n * If this slide is active/current/visible\r\n *\r\n * @param {boolean} isActive\r\n */\r\n setIsActive(isActive) {\r\n if (isActive && !this.isActive) {\r\n // slide just became active\r\n this.activate();\r\n } else if (!isActive && this.isActive) {\r\n // slide just became non-active\r\n this.deactivate();\r\n }\r\n }\r\n\r\n /**\r\n * Appends slide content to DOM\r\n *\r\n * @param {HTMLElement} holderElement\r\n */\r\n append(holderElement) {\r\n this.holderElement = holderElement;\r\n\r\n this.container.style.transformOrigin = '0 0';\r\n\r\n // Slide appended to DOM\r\n if (!this.data) {\r\n return;\r\n }\r\n\r\n this.calculateSize();\r\n\r\n this.load();\r\n this.updateContentSize();\r\n this.appendHeavy();\r\n\r\n this.holderElement.appendChild(this.container);\r\n\r\n this.zoomAndPanToInitial();\r\n\r\n this.pswp.dispatch('firstZoomPan', { slide: this });\r\n\r\n this.applyCurrentZoomPan();\r\n\r\n this.pswp.dispatch('afterSetContent', { slide: this });\r\n\r\n if (this.isActive) {\r\n this.activate();\r\n }\r\n }\r\n\r\n load() {\r\n this.content.load(false);\r\n this.pswp.dispatch('slideLoad', { slide: this });\r\n }\r\n\r\n /**\r\n * Append \"heavy\" DOM elements\r\n *\r\n * This may depend on a type of slide,\r\n * but generally these are large images.\r\n */\r\n appendHeavy() {\r\n const { pswp } = this;\r\n const appendHeavyNearby = true; // todo\r\n\r\n // Avoid appending heavy elements during animations\r\n if (this.heavyAppended\r\n || !pswp.opener.isOpen\r\n || pswp.mainScroll.isShifted()\r\n || (!this.isActive && !appendHeavyNearby)) {\r\n return;\r\n }\r\n\r\n if (this.pswp.dispatch('appendHeavy', { slide: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n this.heavyAppended = true;\r\n\r\n this.content.append();\r\n\r\n this.pswp.dispatch('appendHeavyContent', { slide: this });\r\n }\r\n\r\n /**\r\n * Triggered when this slide is active (selected).\r\n *\r\n * If it's part of opening/closing transition -\r\n * activate() will trigger after the transition is ended.\r\n */\r\n activate() {\r\n this.isActive = true;\r\n this.appendHeavy();\r\n this.content.activate();\r\n this.pswp.dispatch('slideActivate', { slide: this });\r\n }\r\n\r\n /**\r\n * Triggered when this slide becomes inactive.\r\n *\r\n * Slide can become inactive only after it was active.\r\n */\r\n deactivate() {\r\n this.isActive = false;\r\n this.content.deactivate();\r\n\r\n if (this.currZoomLevel !== this.zoomLevels.initial) {\r\n // allow filtering\r\n this.calculateSize();\r\n }\r\n\r\n // reset zoom level\r\n this.currentResolution = 0;\r\n this.zoomAndPanToInitial();\r\n this.applyCurrentZoomPan();\r\n this.updateContentSize();\r\n\r\n this.pswp.dispatch('slideDeactivate', { slide: this });\r\n }\r\n\r\n /**\r\n * The slide should destroy itself, it will never be used again.\r\n * (unbind all events and destroy internal components)\r\n */\r\n destroy() {\r\n this.content.hasSlide = false;\r\n this.content.remove();\r\n this.container.remove();\r\n this.pswp.dispatch('slideDestroy', { slide: this });\r\n }\r\n\r\n resize() {\r\n if (this.currZoomLevel === this.zoomLevels.initial || !this.isActive) {\r\n // Keep initial zoom level if it was before the resize,\r\n // as well as when this slide is not active\r\n\r\n // Reset position and scale to original state\r\n this.calculateSize();\r\n this.currentResolution = 0;\r\n this.zoomAndPanToInitial();\r\n this.applyCurrentZoomPan();\r\n this.updateContentSize();\r\n } else {\r\n // readjust pan position if it's beyond the bounds\r\n this.calculateSize();\r\n this.bounds.update(this.currZoomLevel);\r\n this.panTo(this.pan.x, this.pan.y);\r\n }\r\n }\r\n\r\n\r\n /**\r\n * Apply size to current slide content,\r\n * based on the current resolution and scale.\r\n *\r\n * @param {boolean} [force] if size should be updated even if dimensions weren't changed\r\n */\r\n updateContentSize(force) {\r\n // Use initial zoom level\r\n // if resolution is not defined (user didn't zoom yet)\r\n const scaleMultiplier = this.currentResolution || this.zoomLevels.initial;\r\n\r\n if (!scaleMultiplier) {\r\n return;\r\n }\r\n\r\n const width = Math.round(this.width * scaleMultiplier) || this.pswp.viewportSize.x;\r\n const height = Math.round(this.height * scaleMultiplier) || this.pswp.viewportSize.y;\r\n\r\n if (!this.sizeChanged(width, height) && !force) {\r\n return;\r\n }\r\n this.content.setDisplayedSize(width, height);\r\n }\r\n\r\n /**\r\n * @param {number} width\r\n * @param {number} height\r\n */\r\n sizeChanged(width, height) {\r\n if (width !== this.prevDisplayedWidth\r\n || height !== this.prevDisplayedHeight) {\r\n this.prevDisplayedWidth = width;\r\n this.prevDisplayedHeight = height;\r\n return true;\r\n }\r\n\r\n return false;\r\n }\r\n\r\n /** @returns {HTMLImageElement | HTMLDivElement | null | undefined} */\r\n getPlaceholderElement() {\r\n return this.content.placeholder?.element;\r\n }\r\n\r\n /**\r\n * Zoom current slide image to...\r\n *\r\n * @param {number} destZoomLevel Destination zoom level.\r\n * @param {Point} [centerPoint]\r\n * Transform origin center point, or false if viewport center should be used.\r\n * @param {number | false} [transitionDuration] Transition duration, may be set to 0.\r\n * @param {boolean} [ignoreBounds] Minimum and maximum zoom levels will be ignored.\r\n */\r\n zoomTo(destZoomLevel, centerPoint, transitionDuration, ignoreBounds) {\r\n const { pswp } = this;\r\n if (!this.isZoomable()\r\n || pswp.mainScroll.isShifted()) {\r\n return;\r\n }\r\n\r\n pswp.dispatch('beforeZoomTo', {\r\n destZoomLevel, centerPoint, transitionDuration\r\n });\r\n\r\n // stop all pan and zoom transitions\r\n pswp.animations.stopAllPan();\r\n\r\n // if (!centerPoint) {\r\n // centerPoint = pswp.getViewportCenterPoint();\r\n // }\r\n\r\n const prevZoomLevel = this.currZoomLevel;\r\n\r\n if (!ignoreBounds) {\r\n destZoomLevel = clamp(destZoomLevel, this.zoomLevels.min, this.zoomLevels.max);\r\n }\r\n\r\n // if (transitionDuration === undefined) {\r\n // transitionDuration = this.pswp.options.zoomAnimationDuration;\r\n // }\r\n\r\n this.setZoomLevel(destZoomLevel);\r\n this.pan.x = this.calculateZoomToPanOffset('x', centerPoint, prevZoomLevel);\r\n this.pan.y = this.calculateZoomToPanOffset('y', centerPoint, prevZoomLevel);\r\n roundPoint(this.pan);\r\n\r\n const finishTransition = () => {\r\n this._setResolution(destZoomLevel);\r\n this.applyCurrentZoomPan();\r\n };\r\n\r\n if (!transitionDuration) {\r\n finishTransition();\r\n } else {\r\n pswp.animations.startTransition({\r\n isPan: true,\r\n name: 'zoomTo',\r\n target: this.container,\r\n transform: this.getCurrentTransform(),\r\n onComplete: finishTransition,\r\n duration: transitionDuration,\r\n easing: pswp.options.easing\r\n });\r\n }\r\n }\r\n\r\n /**\r\n * @param {Point} [centerPoint]\r\n */\r\n toggleZoom(centerPoint) {\r\n this.zoomTo(\r\n this.currZoomLevel === this.zoomLevels.initial\r\n ? this.zoomLevels.secondary : this.zoomLevels.initial,\r\n centerPoint,\r\n this.pswp.options.zoomAnimationDuration\r\n );\r\n }\r\n\r\n /**\r\n * Updates zoom level property and recalculates new pan bounds,\r\n * unlike zoomTo it does not apply transform (use applyCurrentZoomPan)\r\n *\r\n * @param {number} currZoomLevel\r\n */\r\n setZoomLevel(currZoomLevel) {\r\n this.currZoomLevel = currZoomLevel;\r\n this.bounds.update(this.currZoomLevel);\r\n }\r\n\r\n /**\r\n * Get pan position after zoom at a given `point`.\r\n *\r\n * Always call setZoomLevel(newZoomLevel) beforehand to recalculate\r\n * pan bounds according to the new zoom level.\r\n *\r\n * @param {'x' | 'y'} axis\r\n * @param {Point} [point]\r\n * point based on which zoom is performed, usually refers to the current mouse position,\r\n * if false - viewport center will be used.\r\n * @param {number} [prevZoomLevel] Zoom level before new zoom was applied.\r\n * @returns {number}\r\n */\r\n calculateZoomToPanOffset(axis, point, prevZoomLevel) {\r\n const totalPanDistance = this.bounds.max[axis] - this.bounds.min[axis];\r\n if (totalPanDistance === 0) {\r\n return this.bounds.center[axis];\r\n }\r\n\r\n if (!point) {\r\n point = this.pswp.getViewportCenterPoint();\r\n }\r\n\r\n if (!prevZoomLevel) {\r\n prevZoomLevel = this.zoomLevels.initial;\r\n }\r\n\r\n const zoomFactor = this.currZoomLevel / prevZoomLevel;\r\n return this.bounds.correctPan(\r\n axis,\r\n (this.pan[axis] - point[axis]) * zoomFactor + point[axis]\r\n );\r\n }\r\n\r\n /**\r\n * Apply pan and keep it within bounds.\r\n *\r\n * @param {number} panX\r\n * @param {number} panY\r\n */\r\n panTo(panX, panY) {\r\n this.pan.x = this.bounds.correctPan('x', panX);\r\n this.pan.y = this.bounds.correctPan('y', panY);\r\n this.applyCurrentZoomPan();\r\n }\r\n\r\n /**\r\n * If the slide in the current state can be panned by the user\r\n * @returns {boolean}\r\n */\r\n isPannable() {\r\n return Boolean(this.width) && (this.currZoomLevel > this.zoomLevels.fit);\r\n }\r\n\r\n /**\r\n * If the slide can be zoomed\r\n * @returns {boolean}\r\n */\r\n isZoomable() {\r\n return Boolean(this.width) && this.content.isZoomable();\r\n }\r\n\r\n /**\r\n * Apply transform and scale based on\r\n * the current pan position (this.pan) and zoom level (this.currZoomLevel)\r\n */\r\n applyCurrentZoomPan() {\r\n this._applyZoomTransform(this.pan.x, this.pan.y, this.currZoomLevel);\r\n if (this === this.pswp.currSlide) {\r\n this.pswp.dispatch('zoomPanUpdate', { slide: this });\r\n }\r\n }\r\n\r\n zoomAndPanToInitial() {\r\n this.currZoomLevel = this.zoomLevels.initial;\r\n\r\n // pan according to the zoom level\r\n this.bounds.update(this.currZoomLevel);\r\n equalizePoints(this.pan, this.bounds.center);\r\n this.pswp.dispatch('initialZoomPan', { slide: this });\r\n }\r\n\r\n /**\r\n * Set translate and scale based on current resolution\r\n *\r\n * @param {number} x\r\n * @param {number} y\r\n * @param {number} zoom\r\n * @private\r\n */\r\n _applyZoomTransform(x, y, zoom) {\r\n zoom /= this.currentResolution || this.zoomLevels.initial;\r\n setTransform(this.container, x, y, zoom);\r\n }\r\n\r\n calculateSize() {\r\n const { pswp } = this;\r\n\r\n equalizePoints(\r\n this.panAreaSize,\r\n getPanAreaSize(pswp.options, pswp.viewportSize, this.data, this.index)\r\n );\r\n\r\n this.zoomLevels.update(this.width, this.height, this.panAreaSize);\r\n\r\n pswp.dispatch('calcSlideSize', {\r\n slide: this\r\n });\r\n }\r\n\r\n /** @returns {string} */\r\n getCurrentTransform() {\r\n const scale = this.currZoomLevel / (this.currentResolution || this.zoomLevels.initial);\r\n return toTransformString(this.pan.x, this.pan.y, scale);\r\n }\r\n\r\n /**\r\n * Set resolution and re-render the image.\r\n *\r\n * For example, if the real image size is 2000x1500,\r\n * and resolution is 0.5 - it will be rendered as 1000x750.\r\n *\r\n * Image with zoom level 2 and resolution 0.5 is\r\n * the same as image with zoom level 1 and resolution 1.\r\n *\r\n * Used to optimize animations and make\r\n * sure that browser renders image in the highest quality.\r\n * Also used by responsive images to load the correct one.\r\n *\r\n * @param {number} newResolution\r\n */\r\n _setResolution(newResolution) {\r\n if (newResolution === this.currentResolution) {\r\n return;\r\n }\r\n\r\n this.currentResolution = newResolution;\r\n this.updateContentSize();\r\n\r\n this.pswp.dispatch('resolutionChanged');\r\n }\r\n}\r\n\r\nexport default Slide;\r\n","import {\r\n equalizePoints, roundPoint, clamp\r\n} from '../util/util.js';\r\n\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('./gestures.js').default} Gestures */\r\n\r\nconst PAN_END_FRICTION = 0.35;\r\nconst VERTICAL_DRAG_FRICTION = 0.6;\r\n\r\n// 1 corresponds to the third of viewport height\r\nconst MIN_RATIO_TO_CLOSE = 0.4;\r\n\r\n// Minimum speed required to navigate\r\n// to next or previous slide\r\nconst MIN_NEXT_SLIDE_SPEED = 0.5;\r\n\r\n/**\r\n * @param {number} initialVelocity\r\n * @param {number} decelerationRate\r\n * @returns {number}\r\n */\r\nfunction project(initialVelocity, decelerationRate) {\r\n return initialVelocity * decelerationRate / (1 - decelerationRate);\r\n}\r\n\r\n/**\r\n * Handles single pointer dragging\r\n */\r\nclass DragHandler {\r\n /**\r\n * @param {Gestures} gestures\r\n */\r\n constructor(gestures) {\r\n this.gestures = gestures;\r\n this.pswp = gestures.pswp;\r\n /** @type {Point} */\r\n this.startPan = { x: 0, y: 0 };\r\n }\r\n\r\n start() {\r\n if (this.pswp.currSlide) {\r\n equalizePoints(this.startPan, this.pswp.currSlide.pan);\r\n }\r\n this.pswp.animations.stopAll();\r\n }\r\n\r\n change() {\r\n const { p1, prevP1, dragAxis } = this.gestures;\r\n const { currSlide } = this.pswp;\r\n\r\n if (dragAxis === 'y'\r\n && this.pswp.options.closeOnVerticalDrag\r\n && (currSlide && currSlide.currZoomLevel <= currSlide.zoomLevels.fit)\r\n && !this.gestures.isMultitouch) {\r\n // Handle vertical drag to close\r\n const panY = currSlide.pan.y + (p1.y - prevP1.y);\r\n if (!this.pswp.dispatch('verticalDrag', { panY }).defaultPrevented) {\r\n this._setPanWithFriction('y', panY, VERTICAL_DRAG_FRICTION);\r\n const bgOpacity = 1 - Math.abs(this._getVerticalDragRatio(currSlide.pan.y));\r\n this.pswp.applyBgOpacity(bgOpacity);\r\n currSlide.applyCurrentZoomPan();\r\n }\r\n } else {\r\n const mainScrollChanged = this._panOrMoveMainScroll('x');\r\n if (!mainScrollChanged) {\r\n this._panOrMoveMainScroll('y');\r\n\r\n if (currSlide) {\r\n roundPoint(currSlide.pan);\r\n currSlide.applyCurrentZoomPan();\r\n }\r\n }\r\n }\r\n }\r\n\r\n end() {\r\n const { velocity } = this.gestures;\r\n const { mainScroll, currSlide } = this.pswp;\r\n let indexDiff = 0;\r\n\r\n this.pswp.animations.stopAll();\r\n\r\n // Handle main scroll if it's shifted\r\n if (mainScroll.isShifted()) {\r\n // Position of the main scroll relative to the viewport\r\n const mainScrollShiftDiff = mainScroll.x - mainScroll.getCurrSlideX();\r\n\r\n // Ratio between 0 and 1:\r\n // 0 - slide is not visible at all,\r\n // 0.5 - half of the slide is visible\r\n // 1 - slide is fully visible\r\n const currentSlideVisibilityRatio = (mainScrollShiftDiff / this.pswp.viewportSize.x);\r\n\r\n // Go next slide.\r\n //\r\n // - if velocity and its direction is matched,\r\n // and we see at least tiny part of the next slide\r\n //\r\n // - or if we see less than 50% of the current slide\r\n // and velocity is close to 0\r\n //\r\n if ((velocity.x < -MIN_NEXT_SLIDE_SPEED && currentSlideVisibilityRatio < 0)\r\n || (velocity.x < 0.1 && currentSlideVisibilityRatio < -0.5)) {\r\n // Go to next slide\r\n indexDiff = 1;\r\n velocity.x = Math.min(velocity.x, 0);\r\n } else if ((velocity.x > MIN_NEXT_SLIDE_SPEED && currentSlideVisibilityRatio > 0)\r\n || (velocity.x > -0.1 && currentSlideVisibilityRatio > 0.5)) {\r\n // Go to prev slide\r\n indexDiff = -1;\r\n velocity.x = Math.max(velocity.x, 0);\r\n }\r\n\r\n mainScroll.moveIndexBy(indexDiff, true, velocity.x);\r\n }\r\n\r\n // Restore zoom level\r\n if ((currSlide && currSlide.currZoomLevel > currSlide.zoomLevels.max)\r\n || this.gestures.isMultitouch) {\r\n this.gestures.zoomLevels.correctZoomPan(true);\r\n } else {\r\n // we run two animations instead of one,\r\n // as each axis has own pan boundaries and thus different spring function\r\n // (correctZoomPan does not have this functionality,\r\n // it animates all properties with single timing function)\r\n this._finishPanGestureForAxis('x');\r\n this._finishPanGestureForAxis('y');\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {'x' | 'y'} axis\r\n */\r\n _finishPanGestureForAxis(axis) {\r\n const { velocity } = this.gestures;\r\n const { currSlide } = this.pswp;\r\n\r\n if (!currSlide) {\r\n return;\r\n }\r\n\r\n const { pan, bounds } = currSlide;\r\n const panPos = pan[axis];\r\n const restoreBgOpacity = (this.pswp.bgOpacity < 1 && axis === 'y');\r\n\r\n // 0.995 means - scroll view loses 0.5% of its velocity per millisecond\r\n // Increasing this number will reduce travel distance\r\n const decelerationRate = 0.995; // 0.99\r\n\r\n // Pan position if there is no bounds\r\n const projectedPosition = panPos + project(velocity[axis], decelerationRate);\r\n\r\n if (restoreBgOpacity) {\r\n const vDragRatio = this._getVerticalDragRatio(panPos);\r\n const projectedVDragRatio = this._getVerticalDragRatio(projectedPosition);\r\n\r\n // If we are above and moving upwards,\r\n // or if we are below and moving downwards\r\n if ((vDragRatio < 0 && projectedVDragRatio < -MIN_RATIO_TO_CLOSE)\r\n || (vDragRatio > 0 && projectedVDragRatio > MIN_RATIO_TO_CLOSE)) {\r\n this.pswp.close();\r\n return;\r\n }\r\n }\r\n\r\n // Pan position with corrected bounds\r\n const correctedPanPosition = bounds.correctPan(axis, projectedPosition);\r\n\r\n // Exit if pan position should not be changed\r\n // or if speed it too low\r\n if (panPos === correctedPanPosition) {\r\n return;\r\n }\r\n\r\n // Overshoot if the final position is out of pan bounds\r\n const dampingRatio = (correctedPanPosition === projectedPosition) ? 1 : 0.82;\r\n\r\n const initialBgOpacity = this.pswp.bgOpacity;\r\n const totalPanDist = correctedPanPosition - panPos;\r\n\r\n this.pswp.animations.startSpring({\r\n name: 'panGesture' + axis,\r\n isPan: true,\r\n start: panPos,\r\n end: correctedPanPosition,\r\n velocity: velocity[axis],\r\n dampingRatio,\r\n onUpdate: (pos) => {\r\n // Animate opacity of background relative to Y pan position of an image\r\n if (restoreBgOpacity && this.pswp.bgOpacity < 1) {\r\n // 0 - start of animation, 1 - end of animation\r\n const animationProgressRatio = 1 - (correctedPanPosition - pos) / totalPanDist;\r\n\r\n // We clamp opacity to keep it between 0 and 1.\r\n // As progress ratio can be larger than 1 due to overshoot,\r\n // and we do not want to bounce opacity.\r\n this.pswp.applyBgOpacity(clamp(\r\n initialBgOpacity + (1 - initialBgOpacity) * animationProgressRatio,\r\n 0,\r\n 1\r\n ));\r\n }\r\n\r\n pan[axis] = Math.floor(pos);\r\n currSlide.applyCurrentZoomPan();\r\n },\r\n });\r\n }\r\n\r\n /**\r\n * Update position of the main scroll,\r\n * or/and update pan position of the current slide.\r\n *\r\n * Should return true if it changes (or can change) main scroll.\r\n *\r\n * @private\r\n * @param {'x' | 'y'} axis\r\n * @returns {boolean}\r\n */\r\n _panOrMoveMainScroll(axis) {\r\n const { p1, dragAxis, prevP1, isMultitouch } = this.gestures;\r\n const { currSlide, mainScroll } = this.pswp;\r\n const delta = (p1[axis] - prevP1[axis]);\r\n const newMainScrollX = mainScroll.x + delta;\r\n\r\n if (!delta || !currSlide) {\r\n return false;\r\n }\r\n\r\n // Always move main scroll if image can not be panned\r\n if (axis === 'x' && !currSlide.isPannable() && !isMultitouch) {\r\n mainScroll.moveTo(newMainScrollX, true);\r\n return true; // changed main scroll\r\n }\r\n\r\n const { bounds } = currSlide;\r\n const newPan = currSlide.pan[axis] + delta;\r\n\r\n if (this.pswp.options.allowPanToNext\r\n && dragAxis === 'x'\r\n && axis === 'x'\r\n && !isMultitouch) {\r\n const currSlideMainScrollX = mainScroll.getCurrSlideX();\r\n\r\n // Position of the main scroll relative to the viewport\r\n const mainScrollShiftDiff = mainScroll.x - currSlideMainScrollX;\r\n\r\n const isLeftToRight = delta > 0;\r\n const isRightToLeft = !isLeftToRight;\r\n\r\n if (newPan > bounds.min[axis] && isLeftToRight) {\r\n // Panning from left to right, beyond the left edge\r\n\r\n // Wether the image was at minimum pan position (or less)\r\n // when this drag gesture started.\r\n // Minimum pan position refers to the left edge of the image.\r\n const wasAtMinPanPosition = (bounds.min[axis] <= this.startPan[axis]);\r\n\r\n if (wasAtMinPanPosition) {\r\n mainScroll.moveTo(newMainScrollX, true);\r\n return true;\r\n } else {\r\n this._setPanWithFriction(axis, newPan);\r\n //currSlide.pan[axis] = newPan;\r\n }\r\n } else if (newPan < bounds.max[axis] && isRightToLeft) {\r\n // Paning from right to left, beyond the right edge\r\n\r\n // Maximum pan position refers to the right edge of the image.\r\n const wasAtMaxPanPosition = (this.startPan[axis] <= bounds.max[axis]);\r\n\r\n if (wasAtMaxPanPosition) {\r\n mainScroll.moveTo(newMainScrollX, true);\r\n return true;\r\n } else {\r\n this._setPanWithFriction(axis, newPan);\r\n //currSlide.pan[axis] = newPan;\r\n }\r\n } else {\r\n // If main scroll is shifted\r\n if (mainScrollShiftDiff !== 0) {\r\n // If main scroll is shifted right\r\n if (mainScrollShiftDiff > 0 /*&& isRightToLeft*/) {\r\n mainScroll.moveTo(Math.max(newMainScrollX, currSlideMainScrollX), true);\r\n return true;\r\n } else if (mainScrollShiftDiff < 0 /*&& isLeftToRight*/) {\r\n // Main scroll is shifted left (Position is less than 0 comparing to the viewport 0)\r\n mainScroll.moveTo(Math.min(newMainScrollX, currSlideMainScrollX), true);\r\n return true;\r\n }\r\n } else {\r\n // We are within pan bounds, so just pan\r\n this._setPanWithFriction(axis, newPan);\r\n }\r\n }\r\n } else {\r\n if (axis === 'y') {\r\n // Do not pan vertically if main scroll is shifted o\r\n if (!mainScroll.isShifted() && bounds.min.y !== bounds.max.y) {\r\n this._setPanWithFriction(axis, newPan);\r\n }\r\n } else {\r\n this._setPanWithFriction(axis, newPan);\r\n }\r\n }\r\n\r\n return false;\r\n }\r\n\r\n // If we move above - the ratio is negative\r\n // If we move below the ratio is positive\r\n\r\n /**\r\n * Relation between pan Y position and third of viewport height.\r\n *\r\n * When we are at initial position (center bounds) - the ratio is 0,\r\n * if position is shifted upwards - the ratio is negative,\r\n * if position is shifted downwards - the ratio is positive.\r\n *\r\n * @private\r\n * @param {number} panY The current pan Y position.\r\n * @returns {number}\r\n */\r\n _getVerticalDragRatio(panY) {\r\n return (panY - (this.pswp.currSlide?.bounds.center.y ?? 0)) / (this.pswp.viewportSize.y / 3);\r\n }\r\n\r\n /**\r\n * Set pan position of the current slide.\r\n * Apply friction if the position is beyond the pan bounds,\r\n * or if custom friction is defined.\r\n *\r\n * @private\r\n * @param {'x' | 'y'} axis\r\n * @param {number} potentialPan\r\n * @param {number} [customFriction] (0.1 - 1)\r\n */\r\n _setPanWithFriction(axis, potentialPan, customFriction) {\r\n const { currSlide } = this.pswp;\r\n\r\n if (!currSlide) {\r\n return;\r\n }\r\n\r\n const { pan, bounds } = currSlide;\r\n const correctedPan = bounds.correctPan(axis, potentialPan);\r\n // If we are out of pan bounds\r\n if (correctedPan !== potentialPan || customFriction) {\r\n const delta = Math.round(potentialPan - pan[axis]);\r\n pan[axis] += delta * (customFriction || PAN_END_FRICTION);\r\n } else {\r\n pan[axis] = potentialPan;\r\n }\r\n }\r\n}\r\n\r\nexport default DragHandler;\r\n","import {\r\n equalizePoints, getDistanceBetween, clamp, pointsEqual\r\n} from '../util/util.js';\r\n\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('./gestures.js').default} Gestures */\r\n\r\nconst UPPER_ZOOM_FRICTION = 0.05;\r\nconst LOWER_ZOOM_FRICTION = 0.15;\r\n\r\n\r\n/**\r\n * Get center point between two points\r\n *\r\n * @param {Point} p\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {Point}\r\n */\r\nfunction getZoomPointsCenter(p, p1, p2) {\r\n p.x = (p1.x + p2.x) / 2;\r\n p.y = (p1.y + p2.y) / 2;\r\n return p;\r\n}\r\n\r\nclass ZoomHandler {\r\n /**\r\n * @param {Gestures} gestures\r\n */\r\n constructor(gestures) {\r\n this.gestures = gestures;\r\n /**\r\n * @private\r\n * @type {Point}\r\n */\r\n this._startPan = { x: 0, y: 0 };\r\n /**\r\n * @private\r\n * @type {Point}\r\n */\r\n this._startZoomPoint = { x: 0, y: 0 };\r\n /**\r\n * @private\r\n * @type {Point}\r\n */\r\n this._zoomPoint = { x: 0, y: 0 };\r\n /** @private */\r\n this._wasOverFitZoomLevel = false;\r\n /** @private */\r\n this._startZoomLevel = 1;\r\n }\r\n\r\n start() {\r\n const { currSlide } = this.gestures.pswp;\r\n if (currSlide) {\r\n this._startZoomLevel = currSlide.currZoomLevel;\r\n equalizePoints(this._startPan, currSlide.pan);\r\n }\r\n\r\n this.gestures.pswp.animations.stopAllPan();\r\n this._wasOverFitZoomLevel = false;\r\n }\r\n\r\n change() {\r\n const { p1, startP1, p2, startP2, pswp } = this.gestures;\r\n const { currSlide } = pswp;\r\n\r\n if (!currSlide) {\r\n return;\r\n }\r\n\r\n const minZoomLevel = currSlide.zoomLevels.min;\r\n const maxZoomLevel = currSlide.zoomLevels.max;\r\n\r\n if (!currSlide.isZoomable() || pswp.mainScroll.isShifted()) {\r\n return;\r\n }\r\n\r\n getZoomPointsCenter(this._startZoomPoint, startP1, startP2);\r\n getZoomPointsCenter(this._zoomPoint, p1, p2);\r\n\r\n let currZoomLevel = (1 / getDistanceBetween(startP1, startP2))\r\n * getDistanceBetween(p1, p2)\r\n * this._startZoomLevel;\r\n\r\n // slightly over the zoom.fit\r\n if (currZoomLevel > currSlide.zoomLevels.initial + (currSlide.zoomLevels.initial / 15)) {\r\n this._wasOverFitZoomLevel = true;\r\n }\r\n\r\n if (currZoomLevel < minZoomLevel) {\r\n if (pswp.options.pinchToClose\r\n && !this._wasOverFitZoomLevel\r\n && this._startZoomLevel <= currSlide.zoomLevels.initial) {\r\n // fade out background if zooming out\r\n const bgOpacity = 1 - ((minZoomLevel - currZoomLevel) / (minZoomLevel / 1.2));\r\n if (!pswp.dispatch('pinchClose', { bgOpacity }).defaultPrevented) {\r\n pswp.applyBgOpacity(bgOpacity);\r\n }\r\n } else {\r\n // Apply the friction if zoom level is below the min\r\n currZoomLevel = minZoomLevel - (minZoomLevel - currZoomLevel) * LOWER_ZOOM_FRICTION;\r\n }\r\n } else if (currZoomLevel > maxZoomLevel) {\r\n // Apply the friction if zoom level is above the max\r\n currZoomLevel = maxZoomLevel + (currZoomLevel - maxZoomLevel) * UPPER_ZOOM_FRICTION;\r\n }\r\n\r\n currSlide.pan.x = this._calculatePanForZoomLevel('x', currZoomLevel);\r\n currSlide.pan.y = this._calculatePanForZoomLevel('y', currZoomLevel);\r\n\r\n currSlide.setZoomLevel(currZoomLevel);\r\n currSlide.applyCurrentZoomPan();\r\n }\r\n\r\n end() {\r\n const { pswp } = this.gestures;\r\n const { currSlide } = pswp;\r\n if ((!currSlide || currSlide.currZoomLevel < currSlide.zoomLevels.initial)\r\n && !this._wasOverFitZoomLevel\r\n && pswp.options.pinchToClose) {\r\n pswp.close();\r\n } else {\r\n this.correctZoomPan();\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {'x' | 'y'} axis\r\n * @param {number} currZoomLevel\r\n * @returns {number}\r\n */\r\n _calculatePanForZoomLevel(axis, currZoomLevel) {\r\n const zoomFactor = currZoomLevel / this._startZoomLevel;\r\n return this._zoomPoint[axis]\r\n - ((this._startZoomPoint[axis] - this._startPan[axis]) * zoomFactor);\r\n }\r\n\r\n /**\r\n * Correct currZoomLevel and pan if they are\r\n * beyond minimum or maximum values.\r\n * With animation.\r\n *\r\n * @param {boolean} [ignoreGesture]\r\n * Wether gesture coordinates should be ignored when calculating destination pan position.\r\n */\r\n correctZoomPan(ignoreGesture) {\r\n const { pswp } = this.gestures;\r\n const { currSlide } = pswp;\r\n\r\n if (!currSlide?.isZoomable()) {\r\n return;\r\n }\r\n\r\n if (this._zoomPoint.x === 0) {\r\n ignoreGesture = true;\r\n }\r\n\r\n const prevZoomLevel = currSlide.currZoomLevel;\r\n\r\n /** @type {number} */\r\n let destinationZoomLevel;\r\n let currZoomLevelNeedsChange = true;\r\n\r\n if (prevZoomLevel < currSlide.zoomLevels.initial) {\r\n destinationZoomLevel = currSlide.zoomLevels.initial;\r\n // zoom to min\r\n } else if (prevZoomLevel > currSlide.zoomLevels.max) {\r\n destinationZoomLevel = currSlide.zoomLevels.max;\r\n // zoom to max\r\n } else {\r\n currZoomLevelNeedsChange = false;\r\n destinationZoomLevel = prevZoomLevel;\r\n }\r\n\r\n const initialBgOpacity = pswp.bgOpacity;\r\n const restoreBgOpacity = pswp.bgOpacity < 1;\r\n\r\n const initialPan = equalizePoints({ x: 0, y: 0 }, currSlide.pan);\r\n let destinationPan = equalizePoints({ x: 0, y: 0 }, initialPan);\r\n\r\n if (ignoreGesture) {\r\n this._zoomPoint.x = 0;\r\n this._zoomPoint.y = 0;\r\n this._startZoomPoint.x = 0;\r\n this._startZoomPoint.y = 0;\r\n this._startZoomLevel = prevZoomLevel;\r\n equalizePoints(this._startPan, initialPan);\r\n }\r\n\r\n if (currZoomLevelNeedsChange) {\r\n destinationPan = {\r\n x: this._calculatePanForZoomLevel('x', destinationZoomLevel),\r\n y: this._calculatePanForZoomLevel('y', destinationZoomLevel)\r\n };\r\n }\r\n\r\n // set zoom level, so pan bounds are updated according to it\r\n currSlide.setZoomLevel(destinationZoomLevel);\r\n\r\n destinationPan = {\r\n x: currSlide.bounds.correctPan('x', destinationPan.x),\r\n y: currSlide.bounds.correctPan('y', destinationPan.y)\r\n };\r\n\r\n // return zoom level and its bounds to initial\r\n currSlide.setZoomLevel(prevZoomLevel);\r\n\r\n const panNeedsChange = !pointsEqual(destinationPan, initialPan);\r\n\r\n if (!panNeedsChange && !currZoomLevelNeedsChange && !restoreBgOpacity) {\r\n // update resolution after gesture\r\n currSlide._setResolution(destinationZoomLevel);\r\n currSlide.applyCurrentZoomPan();\r\n\r\n // nothing to animate\r\n return;\r\n }\r\n\r\n pswp.animations.stopAllPan();\r\n\r\n pswp.animations.startSpring({\r\n isPan: true,\r\n start: 0,\r\n end: 1000,\r\n velocity: 0,\r\n dampingRatio: 1,\r\n naturalFrequency: 40,\r\n onUpdate: (now) => {\r\n now /= 1000; // 0 - start, 1 - end\r\n\r\n if (panNeedsChange || currZoomLevelNeedsChange) {\r\n if (panNeedsChange) {\r\n currSlide.pan.x = initialPan.x + (destinationPan.x - initialPan.x) * now;\r\n currSlide.pan.y = initialPan.y + (destinationPan.y - initialPan.y) * now;\r\n }\r\n\r\n if (currZoomLevelNeedsChange) {\r\n const newZoomLevel = prevZoomLevel\r\n + (destinationZoomLevel - prevZoomLevel) * now;\r\n currSlide.setZoomLevel(newZoomLevel);\r\n }\r\n\r\n currSlide.applyCurrentZoomPan();\r\n }\r\n\r\n // Restore background opacity\r\n if (restoreBgOpacity && pswp.bgOpacity < 1) {\r\n // We clamp opacity to keep it between 0 and 1.\r\n // As progress ratio can be larger than 1 due to overshoot,\r\n // and we do not want to bounce opacity.\r\n pswp.applyBgOpacity(clamp(\r\n initialBgOpacity + (1 - initialBgOpacity) * now, 0, 1\r\n ));\r\n }\r\n },\r\n onComplete: () => {\r\n // update resolution after transition ends\r\n currSlide._setResolution(destinationZoomLevel);\r\n currSlide.applyCurrentZoomPan();\r\n }\r\n });\r\n }\r\n}\r\n\r\nexport default ZoomHandler;\r\n","/**\r\n * @template {string} T\r\n * @template {string} P\r\n * @typedef {import('../types.js').AddPostfix} AddPostfix\r\n */\r\n\r\n/** @typedef {import('./gestures.js').default} Gestures */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n\r\n/** @typedef {'imageClick' | 'bgClick' | 'tap' | 'doubleTap'} Actions */\r\n\r\n/**\r\n * Whether the tap was performed on the main slide\r\n * (rather than controls or caption).\r\n *\r\n * @param {PointerEvent} event\r\n * @returns {boolean}\r\n */\r\nfunction didTapOnMainContent(event) {\r\n return !!(/** @type {HTMLElement} */ (event.target).closest('.pswp__container'));\r\n}\r\n\r\n/**\r\n * Tap, double-tap handler.\r\n */\r\nclass TapHandler {\r\n /**\r\n * @param {Gestures} gestures\r\n */\r\n constructor(gestures) {\r\n this.gestures = gestures;\r\n }\r\n\r\n /**\r\n * @param {Point} point\r\n * @param {PointerEvent} originalEvent\r\n */\r\n click(point, originalEvent) {\r\n const targetClassList = /** @type {HTMLElement} */ (originalEvent.target).classList;\r\n const isImageClick = targetClassList.contains('pswp__img');\r\n const isBackgroundClick = targetClassList.contains('pswp__item')\r\n || targetClassList.contains('pswp__zoom-wrap');\r\n\r\n if (isImageClick) {\r\n this._doClickOrTapAction('imageClick', point, originalEvent);\r\n } else if (isBackgroundClick) {\r\n this._doClickOrTapAction('bgClick', point, originalEvent);\r\n }\r\n }\r\n\r\n /**\r\n * @param {Point} point\r\n * @param {PointerEvent} originalEvent\r\n */\r\n tap(point, originalEvent) {\r\n if (didTapOnMainContent(originalEvent)) {\r\n this._doClickOrTapAction('tap', point, originalEvent);\r\n }\r\n }\r\n\r\n /**\r\n * @param {Point} point\r\n * @param {PointerEvent} originalEvent\r\n */\r\n doubleTap(point, originalEvent) {\r\n if (didTapOnMainContent(originalEvent)) {\r\n this._doClickOrTapAction('doubleTap', point, originalEvent);\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {Actions} actionName\r\n * @param {Point} point\r\n * @param {PointerEvent} originalEvent\r\n */\r\n _doClickOrTapAction(actionName, point, originalEvent) {\r\n const { pswp } = this.gestures;\r\n const { currSlide } = pswp;\r\n const actionFullName = /** @type {AddPostfix} */ (actionName + 'Action');\r\n const optionValue = pswp.options[actionFullName];\r\n\r\n if (pswp.dispatch(actionFullName, { point, originalEvent }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (typeof optionValue === 'function') {\r\n optionValue.call(pswp, point, originalEvent);\r\n return;\r\n }\r\n\r\n switch (optionValue) {\r\n case 'close':\r\n case 'next':\r\n pswp[optionValue]();\r\n break;\r\n case 'zoom':\r\n currSlide?.toggleZoom(point);\r\n break;\r\n case 'zoom-or-close':\r\n // by default click zooms current image,\r\n // if it can not be zoomed - gallery will be closed\r\n if (currSlide?.isZoomable()\r\n && currSlide.zoomLevels.secondary !== currSlide.zoomLevels.initial) {\r\n currSlide.toggleZoom(point);\r\n } else if (pswp.options.clickToCloseNonZoomable) {\r\n pswp.close();\r\n }\r\n break;\r\n case 'toggle-controls':\r\n this.gestures.pswp.element?.classList.toggle('pswp--ui-visible');\r\n // if (_controlsVisible) {\r\n // _ui.hideControls();\r\n // } else {\r\n // _ui.showControls();\r\n // }\r\n break;\r\n }\r\n }\r\n}\r\n\r\nexport default TapHandler;\r\n","import {\r\n equalizePoints, pointsEqual, getDistanceBetween\r\n} from '../util/util.js';\r\n\r\nimport DragHandler from './drag-handler.js';\r\nimport ZoomHandler from './zoom-handler.js';\r\nimport TapHandler from './tap-handler.js';\r\n\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n\r\n// How far should user should drag\r\n// until we can determine that the gesture is swipe and its direction\r\nconst AXIS_SWIPE_HYSTERISIS = 10;\r\n//const PAN_END_FRICTION = 0.35;\r\n\r\nconst DOUBLE_TAP_DELAY = 300; // ms\r\nconst MIN_TAP_DISTANCE = 25; // px\r\n\r\n/**\r\n * Gestures class bind touch, pointer or mouse events\r\n * and emits drag to drag-handler and zoom events zoom-handler.\r\n *\r\n * Drag and zoom events are emited in requestAnimationFrame,\r\n * and only when one of pointers was actually changed.\r\n */\r\nclass Gestures {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n\r\n /** @type {'x' | 'y' | null} */\r\n this.dragAxis = null;\r\n\r\n // point objects are defined once and reused\r\n // PhotoSwipe keeps track only of two pointers, others are ignored\r\n /** @type {Point} */\r\n this.p1 = { x: 0, y: 0 }; // the first pressed pointer\r\n /** @type {Point} */\r\n this.p2 = { x: 0, y: 0 }; // the second pressed pointer\r\n /** @type {Point} */\r\n this.prevP1 = { x: 0, y: 0 };\r\n /** @type {Point} */\r\n this.prevP2 = { x: 0, y: 0 };\r\n /** @type {Point} */\r\n this.startP1 = { x: 0, y: 0 };\r\n /** @type {Point} */\r\n this.startP2 = { x: 0, y: 0 };\r\n /** @type {Point} */\r\n this.velocity = { x: 0, y: 0 };\r\n\r\n /** @type {Point}\r\n * @private\r\n */\r\n this._lastStartP1 = { x: 0, y: 0 };\r\n /** @type {Point}\r\n * @private\r\n */\r\n this._intervalP1 = { x: 0, y: 0 };\r\n /** @private */\r\n this._numActivePoints = 0;\r\n /** @type {Point[]}\r\n * @private\r\n */\r\n this._ongoingPointers = [];\r\n /** @private */\r\n this._touchEventEnabled = 'ontouchstart' in window;\r\n /** @private */\r\n this._pointerEventEnabled = !!(window.PointerEvent);\r\n this.supportsTouch = this._touchEventEnabled\r\n || (this._pointerEventEnabled && navigator.maxTouchPoints > 1);\r\n /** @private */\r\n this._numActivePoints = 0;\r\n /** @private */\r\n this._intervalTime = 0;\r\n /** @private */\r\n this._velocityCalculated = false;\r\n this.isMultitouch = false;\r\n this.isDragging = false;\r\n this.isZooming = false;\r\n /** @type {number | null} */\r\n this.raf = null;\r\n /** @type {NodeJS.Timeout | null}\r\n * @private\r\n */\r\n this._tapTimer = null;\r\n\r\n if (!this.supportsTouch) {\r\n // disable pan to next slide for non-touch devices\r\n pswp.options.allowPanToNext = false;\r\n }\r\n\r\n this.drag = new DragHandler(this);\r\n this.zoomLevels = new ZoomHandler(this);\r\n this.tapHandler = new TapHandler(this);\r\n\r\n pswp.on('bindEvents', () => {\r\n pswp.events.add(\r\n pswp.scrollWrap,\r\n 'click',\r\n /** @type EventListener */(this._onClick.bind(this))\r\n );\r\n\r\n if (this._pointerEventEnabled) {\r\n this._bindEvents('pointer', 'down', 'up', 'cancel');\r\n } else if (this._touchEventEnabled) {\r\n this._bindEvents('touch', 'start', 'end', 'cancel');\r\n\r\n // In previous versions we also bound mouse event here,\r\n // in case device supports both touch and mouse events,\r\n // but newer versions of browsers now support PointerEvent.\r\n\r\n // on iOS10 if you bind touchmove/end after touchstart,\r\n // and you don't preventDefault touchstart (which PhotoSwipe does),\r\n // preventDefault will have no effect on touchmove and touchend.\r\n // Unless you bind it previously.\r\n if (pswp.scrollWrap) {\r\n pswp.scrollWrap.ontouchmove = () => {};\r\n pswp.scrollWrap.ontouchend = () => {};\r\n }\r\n } else {\r\n this._bindEvents('mouse', 'down', 'up');\r\n }\r\n });\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {'mouse' | 'touch' | 'pointer'} pref\r\n * @param {'down' | 'start'} down\r\n * @param {'up' | 'end'} up\r\n * @param {'cancel'} [cancel]\r\n */\r\n _bindEvents(pref, down, up, cancel) {\r\n const { pswp } = this;\r\n const { events } = pswp;\r\n\r\n const cancelEvent = cancel ? pref + cancel : '';\r\n\r\n events.add(\r\n pswp.scrollWrap,\r\n pref + down,\r\n /** @type EventListener */(this.onPointerDown.bind(this))\r\n );\r\n events.add(window, pref + 'move', /** @type EventListener */(this.onPointerMove.bind(this)));\r\n events.add(window, pref + up, /** @type EventListener */(this.onPointerUp.bind(this)));\r\n if (cancelEvent) {\r\n events.add(\r\n pswp.scrollWrap,\r\n cancelEvent,\r\n /** @type EventListener */(this.onPointerUp.bind(this))\r\n );\r\n }\r\n }\r\n\r\n /**\r\n * @param {PointerEvent} e\r\n */\r\n onPointerDown(e) {\r\n // We do not call preventDefault for touch events\r\n // to allow browser to show native dialog on longpress\r\n // (the one that allows to save image or open it in new tab).\r\n //\r\n // Desktop Safari allows to drag images when preventDefault isn't called on mousedown,\r\n // even though preventDefault IS called on mousemove. That's why we preventDefault mousedown.\r\n const isMousePointer = e.type === 'mousedown' || e.pointerType === 'mouse';\r\n\r\n // Allow dragging only via left mouse button.\r\n // http://www.quirksmode.org/js/events_properties.html\r\n // https://developer.mozilla.org/en-US/docs/Web/API/event.button\r\n if (isMousePointer && e.button > 0) {\r\n return;\r\n }\r\n\r\n const { pswp } = this;\r\n\r\n // if PhotoSwipe is opening or closing\r\n if (!pswp.opener.isOpen) {\r\n e.preventDefault();\r\n return;\r\n }\r\n\r\n if (pswp.dispatch('pointerDown', { originalEvent: e }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (isMousePointer) {\r\n pswp.mouseDetected();\r\n\r\n // preventDefault mouse event to prevent\r\n // browser image drag feature\r\n this._preventPointerEventBehaviour(e, 'down');\r\n }\r\n\r\n pswp.animations.stopAll();\r\n\r\n this._updatePoints(e, 'down');\r\n\r\n if (this._numActivePoints === 1) {\r\n this.dragAxis = null;\r\n // we need to store initial point to determine the main axis,\r\n // drag is activated only after the axis is determined\r\n equalizePoints(this.startP1, this.p1);\r\n }\r\n\r\n if (this._numActivePoints > 1) {\r\n // Tap or double tap should not trigger if more than one pointer\r\n this._clearTapTimer();\r\n this.isMultitouch = true;\r\n } else {\r\n this.isMultitouch = false;\r\n }\r\n }\r\n\r\n /**\r\n * @param {PointerEvent} e\r\n */\r\n onPointerMove(e) {\r\n this._preventPointerEventBehaviour(e, 'move');\r\n\r\n if (!this._numActivePoints) {\r\n return;\r\n }\r\n\r\n this._updatePoints(e, 'move');\r\n\r\n if (this.pswp.dispatch('pointerMove', { originalEvent: e }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (this._numActivePoints === 1 && !this.isDragging) {\r\n if (!this.dragAxis) {\r\n this._calculateDragDirection();\r\n }\r\n\r\n // Drag axis was detected, emit drag.start\r\n if (this.dragAxis && !this.isDragging) {\r\n if (this.isZooming) {\r\n this.isZooming = false;\r\n this.zoomLevels.end();\r\n }\r\n\r\n this.isDragging = true;\r\n this._clearTapTimer(); // Tap can not trigger after drag\r\n\r\n // Adjust starting point\r\n this._updateStartPoints();\r\n this._intervalTime = Date.now();\r\n //this._startTime = this._intervalTime;\r\n this._velocityCalculated = false;\r\n equalizePoints(this._intervalP1, this.p1);\r\n this.velocity.x = 0;\r\n this.velocity.y = 0;\r\n this.drag.start();\r\n\r\n this._rafStopLoop();\r\n this._rafRenderLoop();\r\n }\r\n } else if (this._numActivePoints > 1 && !this.isZooming) {\r\n this._finishDrag();\r\n\r\n this.isZooming = true;\r\n\r\n // Adjust starting points\r\n this._updateStartPoints();\r\n\r\n this.zoomLevels.start();\r\n\r\n this._rafStopLoop();\r\n this._rafRenderLoop();\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n */\r\n _finishDrag() {\r\n if (this.isDragging) {\r\n this.isDragging = false;\r\n\r\n // Try to calculate velocity,\r\n // if it wasn't calculated yet in drag.change\r\n if (!this._velocityCalculated) {\r\n this._updateVelocity(true);\r\n }\r\n\r\n this.drag.end();\r\n this.dragAxis = null;\r\n }\r\n }\r\n\r\n /**\r\n * @param {PointerEvent} e\r\n */\r\n onPointerUp(e) {\r\n if (!this._numActivePoints) {\r\n return;\r\n }\r\n\r\n this._updatePoints(e, 'up');\r\n\r\n if (this.pswp.dispatch('pointerUp', { originalEvent: e }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (this._numActivePoints === 0) {\r\n this._rafStopLoop();\r\n\r\n if (this.isDragging) {\r\n this._finishDrag();\r\n } else if (!this.isZooming && !this.isMultitouch) {\r\n //this.zoomLevels.correctZoomPan();\r\n this._finishTap(e);\r\n }\r\n }\r\n\r\n if (this._numActivePoints < 2 && this.isZooming) {\r\n this.isZooming = false;\r\n this.zoomLevels.end();\r\n\r\n if (this._numActivePoints === 1) {\r\n // Since we have 1 point left, we need to reinitiate drag\r\n this.dragAxis = null;\r\n this._updateStartPoints();\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n */\r\n _rafRenderLoop() {\r\n if (this.isDragging || this.isZooming) {\r\n this._updateVelocity();\r\n\r\n if (this.isDragging) {\r\n // make sure that pointer moved since the last update\r\n if (!pointsEqual(this.p1, this.prevP1)) {\r\n this.drag.change();\r\n }\r\n } else /* if (this.isZooming) */ {\r\n if (!pointsEqual(this.p1, this.prevP1)\r\n || !pointsEqual(this.p2, this.prevP2)) {\r\n this.zoomLevels.change();\r\n }\r\n }\r\n\r\n this._updatePrevPoints();\r\n this.raf = requestAnimationFrame(this._rafRenderLoop.bind(this));\r\n }\r\n }\r\n\r\n /**\r\n * Update velocity at 50ms interval\r\n *\r\n * @private\r\n * @param {boolean} [force]\r\n */\r\n _updateVelocity(force) {\r\n const time = Date.now();\r\n const duration = time - this._intervalTime;\r\n\r\n if (duration < 50 && !force) {\r\n return;\r\n }\r\n\r\n\r\n this.velocity.x = this._getVelocity('x', duration);\r\n this.velocity.y = this._getVelocity('y', duration);\r\n\r\n this._intervalTime = time;\r\n equalizePoints(this._intervalP1, this.p1);\r\n this._velocityCalculated = true;\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {PointerEvent} e\r\n */\r\n _finishTap(e) {\r\n const { mainScroll } = this.pswp;\r\n\r\n // Do not trigger tap events if main scroll is shifted\r\n if (mainScroll.isShifted()) {\r\n // restore main scroll position\r\n // (usually happens if stopped in the middle of animation)\r\n mainScroll.moveIndexBy(0, true);\r\n return;\r\n }\r\n\r\n // Do not trigger tap for touchcancel or pointercancel\r\n if (e.type.indexOf('cancel') > 0) {\r\n return;\r\n }\r\n\r\n // Trigger click instead of tap for mouse events\r\n if (e.type === 'mouseup' || e.pointerType === 'mouse') {\r\n this.tapHandler.click(this.startP1, e);\r\n return;\r\n }\r\n\r\n // Disable delay if there is no doubleTapAction\r\n const tapDelay = this.pswp.options.doubleTapAction ? DOUBLE_TAP_DELAY : 0;\r\n\r\n // If tapTimer is defined - we tapped recently,\r\n // check if the current tap is close to the previous one,\r\n // if yes - trigger double tap\r\n if (this._tapTimer) {\r\n this._clearTapTimer();\r\n // Check if two taps were more or less on the same place\r\n if (getDistanceBetween(this._lastStartP1, this.startP1) < MIN_TAP_DISTANCE) {\r\n this.tapHandler.doubleTap(this.startP1, e);\r\n }\r\n } else {\r\n equalizePoints(this._lastStartP1, this.startP1);\r\n this._tapTimer = setTimeout(() => {\r\n this.tapHandler.tap(this.startP1, e);\r\n this._clearTapTimer();\r\n }, tapDelay);\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n */\r\n _clearTapTimer() {\r\n if (this._tapTimer) {\r\n clearTimeout(this._tapTimer);\r\n this._tapTimer = null;\r\n }\r\n }\r\n\r\n /**\r\n * Get velocity for axis\r\n *\r\n * @private\r\n * @param {'x' | 'y'} axis\r\n * @param {number} duration\r\n * @returns {number}\r\n */\r\n _getVelocity(axis, duration) {\r\n // displacement is like distance, but can be negative.\r\n const displacement = this.p1[axis] - this._intervalP1[axis];\r\n\r\n if (Math.abs(displacement) > 1 && duration > 5) {\r\n return displacement / duration;\r\n }\r\n\r\n return 0;\r\n }\r\n\r\n /**\r\n * @private\r\n */\r\n _rafStopLoop() {\r\n if (this.raf) {\r\n cancelAnimationFrame(this.raf);\r\n this.raf = null;\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {PointerEvent} e\r\n * @param {'up' | 'down' | 'move'} pointerType Normalized pointer type\r\n */\r\n _preventPointerEventBehaviour(e, pointerType) {\r\n const preventPointerEvent = this.pswp.applyFilters('preventPointerEvent', true, e, pointerType);\r\n if (preventPointerEvent) {\r\n e.preventDefault();\r\n }\r\n }\r\n\r\n /**\r\n * Parses and normalizes points from the touch, mouse or pointer event.\r\n * Updates p1 and p2.\r\n *\r\n * @private\r\n * @param {PointerEvent | TouchEvent} e\r\n * @param {'up' | 'down' | 'move'} pointerType Normalized pointer type\r\n */\r\n _updatePoints(e, pointerType) {\r\n if (this._pointerEventEnabled) {\r\n const pointerEvent = /** @type {PointerEvent} */ (e);\r\n // Try to find the current pointer in ongoing pointers by its ID\r\n const pointerIndex = this._ongoingPointers.findIndex((ongoingPointer) => {\r\n return ongoingPointer.id === pointerEvent.pointerId;\r\n });\r\n\r\n if (pointerType === 'up' && pointerIndex > -1) {\r\n // release the pointer - remove it from ongoing\r\n this._ongoingPointers.splice(pointerIndex, 1);\r\n } else if (pointerType === 'down' && pointerIndex === -1) {\r\n // add new pointer\r\n this._ongoingPointers.push(this._convertEventPosToPoint(pointerEvent, { x: 0, y: 0 }));\r\n } else if (pointerIndex > -1) {\r\n // update existing pointer\r\n this._convertEventPosToPoint(pointerEvent, this._ongoingPointers[pointerIndex]);\r\n }\r\n\r\n this._numActivePoints = this._ongoingPointers.length;\r\n\r\n // update points that PhotoSwipe uses\r\n // to calculate position and scale\r\n if (this._numActivePoints > 0) {\r\n equalizePoints(this.p1, this._ongoingPointers[0]);\r\n }\r\n\r\n if (this._numActivePoints > 1) {\r\n equalizePoints(this.p2, this._ongoingPointers[1]);\r\n }\r\n } else {\r\n const touchEvent = /** @type {TouchEvent} */ (e);\r\n\r\n this._numActivePoints = 0;\r\n if (touchEvent.type.indexOf('touch') > -1) {\r\n // Touch Event\r\n // https://developer.mozilla.org/en-US/docs/Web/API/TouchEvent\r\n if (touchEvent.touches && touchEvent.touches.length > 0) {\r\n this._convertEventPosToPoint(touchEvent.touches[0], this.p1);\r\n this._numActivePoints++;\r\n if (touchEvent.touches.length > 1) {\r\n this._convertEventPosToPoint(touchEvent.touches[1], this.p2);\r\n this._numActivePoints++;\r\n }\r\n }\r\n } else {\r\n // Mouse Event\r\n this._convertEventPosToPoint(/** @type {PointerEvent} */ (e), this.p1);\r\n if (pointerType === 'up') {\r\n // clear all points on mouseup\r\n this._numActivePoints = 0;\r\n } else {\r\n this._numActivePoints++;\r\n }\r\n }\r\n }\r\n }\r\n\r\n /** update points that were used during previous rAF tick\r\n * @private\r\n */\r\n _updatePrevPoints() {\r\n equalizePoints(this.prevP1, this.p1);\r\n equalizePoints(this.prevP2, this.p2);\r\n }\r\n\r\n /** update points at the start of gesture\r\n * @private\r\n */\r\n _updateStartPoints() {\r\n equalizePoints(this.startP1, this.p1);\r\n equalizePoints(this.startP2, this.p2);\r\n this._updatePrevPoints();\r\n }\r\n\r\n /** @private */\r\n _calculateDragDirection() {\r\n if (this.pswp.mainScroll.isShifted()) {\r\n // if main scroll position is shifted – direction is always horizontal\r\n this.dragAxis = 'x';\r\n } else {\r\n // calculate delta of the last touchmove tick\r\n const diff = Math.abs(this.p1.x - this.startP1.x) - Math.abs(this.p1.y - this.startP1.y);\r\n\r\n if (diff !== 0) {\r\n // check if pointer was shifted horizontally or vertically\r\n const axisToCheck = diff > 0 ? 'x' : 'y';\r\n\r\n if (Math.abs(this.p1[axisToCheck] - this.startP1[axisToCheck]) >= AXIS_SWIPE_HYSTERISIS) {\r\n this.dragAxis = axisToCheck;\r\n }\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * Converts touch, pointer or mouse event\r\n * to PhotoSwipe point.\r\n *\r\n * @private\r\n * @param {Touch | PointerEvent} e\r\n * @param {Point} p\r\n * @returns {Point}\r\n */\r\n _convertEventPosToPoint(e, p) {\r\n p.x = e.pageX - this.pswp.offset.x;\r\n p.y = e.pageY - this.pswp.offset.y;\r\n\r\n if ('pointerId' in e) {\r\n p.id = e.pointerId;\r\n } else if (e.identifier !== undefined) {\r\n p.id = e.identifier;\r\n }\r\n\r\n return p;\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {PointerEvent} e\r\n */\r\n _onClick(e) {\r\n // Do not allow click event to pass through after drag\r\n if (this.pswp.mainScroll.isShifted()) {\r\n e.preventDefault();\r\n e.stopPropagation();\r\n }\r\n }\r\n}\r\n\r\nexport default Gestures;\r\n","import {\r\n setTransform,\r\n createElement,\r\n} from './util/util.js';\r\n\r\n/** @typedef {import('./photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('./slide/slide.js').default} Slide */\r\n\r\n/** @typedef {{ el: HTMLDivElement; slide?: Slide }} ItemHolder */\r\n\r\nconst MAIN_SCROLL_END_FRICTION = 0.35;\r\n\r\n\r\n// const MIN_SWIPE_TRANSITION_DURATION = 250;\r\n// const MAX_SWIPE_TRABSITION_DURATION = 500;\r\n// const DEFAULT_SWIPE_TRANSITION_DURATION = 333;\r\n\r\n/**\r\n * Handles movement of the main scrolling container\r\n * (for example, it repositions when user swipes left or right).\r\n *\r\n * Also stores its state.\r\n */\r\nclass MainScroll {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n this.x = 0;\r\n this.slideWidth = 0;\r\n /** @private */\r\n this._currPositionIndex = 0;\r\n /** @private */\r\n this._prevPositionIndex = 0;\r\n /** @private */\r\n this._containerShiftIndex = -1;\r\n\r\n /** @type {ItemHolder[]} */\r\n this.itemHolders = [];\r\n }\r\n\r\n /**\r\n * Position the scroller and slide containers\r\n * according to viewport size.\r\n *\r\n * @param {boolean} [resizeSlides] Whether slides content should resized\r\n */\r\n resize(resizeSlides) {\r\n const { pswp } = this;\r\n const newSlideWidth = Math.round(\r\n pswp.viewportSize.x + pswp.viewportSize.x * pswp.options.spacing\r\n );\r\n // Mobile browsers might trigger a resize event during a gesture.\r\n // (due to toolbar appearing or hiding).\r\n // Avoid re-adjusting main scroll position if width wasn't changed\r\n const slideWidthChanged = (newSlideWidth !== this.slideWidth);\r\n\r\n if (slideWidthChanged) {\r\n this.slideWidth = newSlideWidth;\r\n this.moveTo(this.getCurrSlideX());\r\n }\r\n\r\n this.itemHolders.forEach((itemHolder, index) => {\r\n if (slideWidthChanged) {\r\n setTransform(itemHolder.el, (index + this._containerShiftIndex)\r\n * this.slideWidth);\r\n }\r\n\r\n if (resizeSlides && itemHolder.slide) {\r\n itemHolder.slide.resize();\r\n }\r\n });\r\n }\r\n\r\n /**\r\n * Reset X position of the main scroller to zero\r\n */\r\n resetPosition() {\r\n // Position on the main scroller (offset)\r\n // it is independent from slide index\r\n this._currPositionIndex = 0;\r\n this._prevPositionIndex = 0;\r\n\r\n // This will force recalculation of size on next resize()\r\n this.slideWidth = 0;\r\n\r\n // _containerShiftIndex*viewportSize will give you amount of transform of the current slide\r\n this._containerShiftIndex = -1;\r\n }\r\n\r\n /**\r\n * Create and append array of three items\r\n * that hold data about slides in DOM\r\n */\r\n appendHolders() {\r\n this.itemHolders = [];\r\n\r\n // append our three slide holders -\r\n // previous, current, and next\r\n for (let i = 0; i < 3; i++) {\r\n const el = createElement('pswp__item', 'div', this.pswp.container);\r\n el.setAttribute('role', 'group');\r\n el.setAttribute('aria-roledescription', 'slide');\r\n el.setAttribute('aria-hidden', 'true');\r\n\r\n // hide nearby item holders until initial zoom animation finishes (to avoid extra Paints)\r\n el.style.display = (i === 1) ? 'block' : 'none';\r\n\r\n this.itemHolders.push({\r\n el,\r\n //index: -1\r\n });\r\n }\r\n }\r\n\r\n /**\r\n * Whether the main scroll can be horizontally swiped to the next or previous slide.\r\n * @returns {boolean}\r\n */\r\n canBeSwiped() {\r\n return this.pswp.getNumItems() > 1;\r\n }\r\n\r\n /**\r\n * Move main scroll by X amount of slides.\r\n * For example:\r\n * `-1` will move to the previous slide,\r\n * `0` will reset the scroll position of the current slide,\r\n * `3` will move three slides forward\r\n *\r\n * If loop option is enabled - index will be automatically looped too,\r\n * (for example `-1` will move to the last slide of the gallery).\r\n *\r\n * @param {number} diff\r\n * @param {boolean} [animate]\r\n * @param {number} [velocityX]\r\n * @returns {boolean} whether index was changed or not\r\n */\r\n moveIndexBy(diff, animate, velocityX) {\r\n const { pswp } = this;\r\n let newIndex = pswp.potentialIndex + diff;\r\n const numSlides = pswp.getNumItems();\r\n\r\n if (pswp.canLoop()) {\r\n newIndex = pswp.getLoopedIndex(newIndex);\r\n const distance = (diff + numSlides) % numSlides;\r\n if (distance <= numSlides / 2) {\r\n // go forward\r\n diff = distance;\r\n } else {\r\n // go backwards\r\n diff = distance - numSlides;\r\n }\r\n } else {\r\n if (newIndex < 0) {\r\n newIndex = 0;\r\n } else if (newIndex >= numSlides) {\r\n newIndex = numSlides - 1;\r\n }\r\n diff = newIndex - pswp.potentialIndex;\r\n }\r\n\r\n pswp.potentialIndex = newIndex;\r\n this._currPositionIndex -= diff;\r\n\r\n pswp.animations.stopMainScroll();\r\n\r\n const destinationX = this.getCurrSlideX();\r\n if (!animate) {\r\n this.moveTo(destinationX);\r\n this.updateCurrItem();\r\n } else {\r\n pswp.animations.startSpring({\r\n isMainScroll: true,\r\n start: this.x,\r\n end: destinationX,\r\n velocity: velocityX || 0,\r\n naturalFrequency: 30,\r\n dampingRatio: 1, //0.7,\r\n onUpdate: (x) => {\r\n this.moveTo(x);\r\n },\r\n onComplete: () => {\r\n this.updateCurrItem();\r\n pswp.appendHeavy();\r\n }\r\n });\r\n\r\n let currDiff = pswp.potentialIndex - pswp.currIndex;\r\n if (pswp.canLoop()) {\r\n const currDistance = (currDiff + numSlides) % numSlides;\r\n if (currDistance <= numSlides / 2) {\r\n // go forward\r\n currDiff = currDistance;\r\n } else {\r\n // go backwards\r\n currDiff = currDistance - numSlides;\r\n }\r\n }\r\n\r\n // Force-append new slides during transition\r\n // if difference between slides is more than 1\r\n if (Math.abs(currDiff) > 1) {\r\n this.updateCurrItem();\r\n }\r\n }\r\n\r\n return Boolean(diff);\r\n }\r\n\r\n /**\r\n * X position of the main scroll for the current slide\r\n * (ignores position during dragging)\r\n * @returns {number}\r\n */\r\n getCurrSlideX() {\r\n return this.slideWidth * this._currPositionIndex;\r\n }\r\n\r\n /**\r\n * Whether scroll position is shifted.\r\n * For example, it will return true if the scroll is being dragged or animated.\r\n * @returns {boolean}\r\n */\r\n isShifted() {\r\n return this.x !== this.getCurrSlideX();\r\n }\r\n\r\n /**\r\n * Update slides X positions and set their content\r\n */\r\n updateCurrItem() {\r\n const { pswp } = this;\r\n const positionDifference = this._prevPositionIndex - this._currPositionIndex;\r\n\r\n if (!positionDifference) {\r\n return;\r\n }\r\n\r\n this._prevPositionIndex = this._currPositionIndex;\r\n\r\n pswp.currIndex = pswp.potentialIndex;\r\n\r\n let diffAbs = Math.abs(positionDifference);\r\n /** @type {ItemHolder | undefined} */\r\n let tempHolder;\r\n\r\n if (diffAbs >= 3) {\r\n this._containerShiftIndex += positionDifference + (positionDifference > 0 ? -3 : 3);\r\n diffAbs = 3;\r\n\r\n // If slides are changed by 3 screens or more - clean up previous slides\r\n this.itemHolders.forEach((itemHolder) => {\r\n itemHolder.slide?.destroy();\r\n itemHolder.slide = undefined;\r\n });\r\n }\r\n\r\n for (let i = 0; i < diffAbs; i++) {\r\n if (positionDifference > 0) {\r\n tempHolder = this.itemHolders.shift();\r\n if (tempHolder) {\r\n this.itemHolders[2] = tempHolder; // move first to last\r\n\r\n this._containerShiftIndex++;\r\n\r\n setTransform(tempHolder.el, (this._containerShiftIndex + 2) * this.slideWidth);\r\n\r\n pswp.setContent(tempHolder, (pswp.currIndex - diffAbs) + i + 2);\r\n }\r\n } else {\r\n tempHolder = this.itemHolders.pop();\r\n if (tempHolder) {\r\n this.itemHolders.unshift(tempHolder); // move last to first\r\n\r\n this._containerShiftIndex--;\r\n\r\n setTransform(tempHolder.el, this._containerShiftIndex * this.slideWidth);\r\n\r\n pswp.setContent(tempHolder, (pswp.currIndex + diffAbs) - i - 2);\r\n }\r\n }\r\n }\r\n\r\n // Reset transfrom every 50ish navigations in one direction.\r\n //\r\n // Otherwise transform will keep growing indefinitely,\r\n // which might cause issues as browsers have a maximum transform limit.\r\n // I wasn't able to reach it, but just to be safe.\r\n // This should not cause noticable lag.\r\n if (Math.abs(this._containerShiftIndex) > 50 && !this.isShifted()) {\r\n this.resetPosition();\r\n this.resize();\r\n }\r\n\r\n // Pan transition might be running (and consntantly updating pan position)\r\n pswp.animations.stopAllPan();\r\n\r\n this.itemHolders.forEach((itemHolder, i) => {\r\n if (itemHolder.slide) {\r\n // Slide in the 2nd holder is always active\r\n itemHolder.slide.setIsActive(i === 1);\r\n }\r\n });\r\n\r\n pswp.currSlide = this.itemHolders[1]?.slide;\r\n pswp.contentLoader.updateLazy(positionDifference);\r\n\r\n if (pswp.currSlide) {\r\n pswp.currSlide.applyCurrentZoomPan();\r\n }\r\n\r\n pswp.dispatch('change');\r\n }\r\n\r\n /**\r\n * Move the X position of the main scroll container\r\n *\r\n * @param {number} x\r\n * @param {boolean} [dragging]\r\n */\r\n moveTo(x, dragging) {\r\n if (!this.pswp.canLoop() && dragging) {\r\n // Apply friction\r\n let newSlideIndexOffset = ((this.slideWidth * this._currPositionIndex) - x) / this.slideWidth;\r\n newSlideIndexOffset += this.pswp.currIndex;\r\n const delta = Math.round(x - this.x);\r\n\r\n if ((newSlideIndexOffset < 0 && delta > 0)\r\n || (newSlideIndexOffset >= this.pswp.getNumItems() - 1 && delta < 0)) {\r\n x = this.x + (delta * MAIN_SCROLL_END_FRICTION);\r\n }\r\n }\r\n\r\n this.x = x;\r\n\r\n if (this.pswp.container) {\r\n setTransform(this.pswp.container, x);\r\n }\r\n\r\n this.pswp.dispatch('moveMainScroll', { x, dragging: dragging ?? false });\r\n }\r\n}\r\n\r\nexport default MainScroll;\r\n","import { specialKeyUsed } from './util/util.js';\r\n\r\n/** @typedef {import('./photoswipe.js').default} PhotoSwipe */\r\n\r\n/**\r\n * @template T\r\n * @typedef {import('./types.js').Methods} Methods\r\n */\r\n\r\nconst KeyboardKeyCodesMap = {\r\n Escape: 27,\r\n z: 90,\r\n ArrowLeft: 37,\r\n ArrowUp: 38,\r\n ArrowRight: 39,\r\n ArrowDown: 40,\r\n Tab: 9,\r\n};\r\n\r\n/**\r\n * @template {keyof KeyboardKeyCodesMap} T\r\n * @param {T} key\r\n * @param {boolean} isKeySupported\r\n * @returns {T | number | undefined}\r\n */\r\nconst getKeyboardEventKey = (key, isKeySupported) => {\r\n return isKeySupported ? key : KeyboardKeyCodesMap[key];\r\n};\r\n\r\n/**\r\n * - Manages keyboard shortcuts.\r\n * - Helps trap focus within photoswipe.\r\n */\r\nclass Keyboard {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n /** @private */\r\n this._wasFocused = false;\r\n\r\n pswp.on('bindEvents', () => {\r\n if (pswp.options.trapFocus) {\r\n // Dialog was likely opened by keyboard if initial point is not defined\r\n if (!pswp.options.initialPointerPos) {\r\n // focus causes layout,\r\n // which causes lag during the animation,\r\n // that's why we delay it until the opener transition ends\r\n this._focusRoot();\r\n }\r\n\r\n pswp.events.add(\r\n document,\r\n 'focusin',\r\n /** @type EventListener */(this._onFocusIn.bind(this))\r\n );\r\n }\r\n\r\n pswp.events.add(document, 'keydown', /** @type EventListener */(this._onKeyDown.bind(this)));\r\n });\r\n\r\n const lastActiveElement = /** @type {HTMLElement} */ (document.activeElement);\r\n pswp.on('destroy', () => {\r\n if (pswp.options.returnFocus\r\n && lastActiveElement\r\n && this._wasFocused) {\r\n lastActiveElement.focus();\r\n }\r\n });\r\n }\r\n\r\n /** @private */\r\n _focusRoot() {\r\n if (!this._wasFocused && this.pswp.element) {\r\n this.pswp.element.focus();\r\n this._wasFocused = true;\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {KeyboardEvent} e\r\n */\r\n _onKeyDown(e) {\r\n const { pswp } = this;\r\n\r\n if (pswp.dispatch('keydown', { originalEvent: e }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (specialKeyUsed(e)) {\r\n // don't do anything if special key pressed\r\n // to prevent from overriding default browser actions\r\n // for example, in Chrome on Mac cmd+arrow-left returns to previous page\r\n return;\r\n }\r\n\r\n /** @type {Methods | undefined} */\r\n let keydownAction;\r\n /** @type {'x' | 'y' | undefined} */\r\n let axis;\r\n let isForward = false;\r\n const isKeySupported = 'key' in e;\r\n\r\n switch (isKeySupported ? e.key : e.keyCode) {\r\n case getKeyboardEventKey('Escape', isKeySupported):\r\n if (pswp.options.escKey) {\r\n keydownAction = 'close';\r\n }\r\n break;\r\n case getKeyboardEventKey('z', isKeySupported):\r\n keydownAction = 'toggleZoom';\r\n break;\r\n case getKeyboardEventKey('ArrowLeft', isKeySupported):\r\n axis = 'x';\r\n break;\r\n case getKeyboardEventKey('ArrowUp', isKeySupported):\r\n axis = 'y';\r\n break;\r\n case getKeyboardEventKey('ArrowRight', isKeySupported):\r\n axis = 'x';\r\n isForward = true;\r\n break;\r\n case getKeyboardEventKey('ArrowDown', isKeySupported):\r\n isForward = true;\r\n axis = 'y';\r\n break;\r\n case getKeyboardEventKey('Tab', isKeySupported):\r\n this._focusRoot();\r\n break;\r\n default:\r\n }\r\n\r\n // if left/right/top/bottom key\r\n if (axis) {\r\n // prevent page scroll\r\n e.preventDefault();\r\n\r\n const { currSlide } = pswp;\r\n\r\n if (pswp.options.arrowKeys\r\n && axis === 'x'\r\n && pswp.getNumItems() > 1) {\r\n keydownAction = isForward ? 'next' : 'prev';\r\n } else if (currSlide && currSlide.currZoomLevel > currSlide.zoomLevels.fit) {\r\n // up/down arrow keys pan the image vertically\r\n // left/right arrow keys pan horizontally.\r\n // Unless there is only one image,\r\n // or arrowKeys option is disabled\r\n currSlide.pan[axis] += isForward ? -80 : 80;\r\n currSlide.panTo(currSlide.pan.x, currSlide.pan.y);\r\n }\r\n }\r\n\r\n if (keydownAction) {\r\n e.preventDefault();\r\n // @ts-ignore\r\n pswp[keydownAction]();\r\n }\r\n }\r\n\r\n /**\r\n * Trap focus inside photoswipe\r\n *\r\n * @private\r\n * @param {FocusEvent} e\r\n */\r\n _onFocusIn(e) {\r\n const { template } = this.pswp;\r\n if (template\r\n && document !== e.target\r\n && template !== e.target\r\n && !template.contains(/** @type {Node} */ (e.target))) {\r\n // focus root element\r\n template.focus();\r\n }\r\n }\r\n}\r\n\r\nexport default Keyboard;\r\n","import { setTransitionStyle, removeTransitionStyle } from './util.js';\r\n\r\nconst DEFAULT_EASING = 'cubic-bezier(.4,0,.22,1)';\r\n\r\n/** @typedef {import('./animations.js').SharedAnimationProps} SharedAnimationProps */\r\n\r\n/** @typedef {Object} DefaultCssAnimationProps\r\n *\r\n * @prop {HTMLElement} target\r\n * @prop {number} [duration]\r\n * @prop {string} [easing]\r\n * @prop {string} [transform]\r\n * @prop {string} [opacity]\r\n * */\r\n\r\n/** @typedef {SharedAnimationProps & DefaultCssAnimationProps} CssAnimationProps */\r\n\r\n/**\r\n * Runs CSS transition.\r\n */\r\nclass CSSAnimation {\r\n /**\r\n * onComplete can be unpredictable, be careful about current state\r\n *\r\n * @param {CssAnimationProps} props\r\n */\r\n constructor(props) {\r\n this.props = props;\r\n const {\r\n target,\r\n onComplete,\r\n transform,\r\n onFinish = () => {},\r\n duration = 333,\r\n easing = DEFAULT_EASING,\r\n } = props;\r\n\r\n this.onFinish = onFinish;\r\n\r\n // support only transform and opacity\r\n const prop = transform ? 'transform' : 'opacity';\r\n const propValue = props[prop] ?? '';\r\n\r\n /** @private */\r\n this._target = target;\r\n /** @private */\r\n this._onComplete = onComplete;\r\n /** @private */\r\n this._finished = false;\r\n\r\n /** @private */\r\n this._onTransitionEnd = this._onTransitionEnd.bind(this);\r\n\r\n // Using timeout hack to make sure that animation\r\n // starts even if the animated property was changed recently,\r\n // otherwise transitionend might not fire or transition won't start.\r\n // https://drafts.csswg.org/css-transitions/#starting\r\n //\r\n // ¯\\_(ツ)_/¯\r\n /** @private */\r\n this._helperTimeout = setTimeout(() => {\r\n setTransitionStyle(target, prop, duration, easing);\r\n this._helperTimeout = setTimeout(() => {\r\n target.addEventListener('transitionend', this._onTransitionEnd, false);\r\n target.addEventListener('transitioncancel', this._onTransitionEnd, false);\r\n\r\n // Safari occasionally does not emit transitionend event\r\n // if element property was modified during the transition,\r\n // which may be caused by resize or third party component,\r\n // using timeout as a safety fallback\r\n this._helperTimeout = setTimeout(() => {\r\n this._finalizeAnimation();\r\n }, duration + 500);\r\n target.style[prop] = propValue;\r\n }, 30); // Do not reduce this number\r\n }, 0);\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {TransitionEvent} e\r\n */\r\n _onTransitionEnd(e) {\r\n if (e.target === this._target) {\r\n this._finalizeAnimation();\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n */\r\n _finalizeAnimation() {\r\n if (!this._finished) {\r\n this._finished = true;\r\n this.onFinish();\r\n if (this._onComplete) {\r\n this._onComplete();\r\n }\r\n }\r\n }\r\n\r\n // Destroy is called automatically onFinish\r\n destroy() {\r\n if (this._helperTimeout) {\r\n clearTimeout(this._helperTimeout);\r\n }\r\n removeTransitionStyle(this._target);\r\n this._target.removeEventListener('transitionend', this._onTransitionEnd, false);\r\n this._target.removeEventListener('transitioncancel', this._onTransitionEnd, false);\r\n if (!this._finished) {\r\n this._finalizeAnimation();\r\n }\r\n }\r\n}\r\n\r\nexport default CSSAnimation;\r\n","const DEFAULT_NATURAL_FREQUENCY = 12;\r\nconst DEFAULT_DAMPING_RATIO = 0.75;\r\n\r\n/**\r\n * Spring easing helper\r\n */\r\nclass SpringEaser {\r\n /**\r\n * @param {number} initialVelocity Initial velocity, px per ms.\r\n *\r\n * @param {number} [dampingRatio]\r\n * Determines how bouncy animation will be.\r\n * From 0 to 1, 0 - always overshoot, 1 - do not overshoot.\r\n * \"overshoot\" refers to part of animation that\r\n * goes beyond the final value.\r\n *\r\n * @param {number} [naturalFrequency]\r\n * Determines how fast animation will slow down.\r\n * The higher value - the stiffer the transition will be,\r\n * and the faster it will slow down.\r\n * Recommended value from 10 to 50\r\n */\r\n constructor(initialVelocity, dampingRatio, naturalFrequency) {\r\n this.velocity = initialVelocity * 1000; // convert to \"pixels per second\"\r\n\r\n // https://en.wikipedia.org/wiki/Damping_ratio\r\n this._dampingRatio = dampingRatio || DEFAULT_DAMPING_RATIO;\r\n\r\n // https://en.wikipedia.org/wiki/Natural_frequency\r\n this._naturalFrequency = naturalFrequency || DEFAULT_NATURAL_FREQUENCY;\r\n\r\n this._dampedFrequency = this._naturalFrequency;\r\n\r\n if (this._dampingRatio < 1) {\r\n this._dampedFrequency *= Math.sqrt(1 - this._dampingRatio * this._dampingRatio);\r\n }\r\n }\r\n\r\n /**\r\n * @param {number} deltaPosition Difference between current and end position of the animation\r\n * @param {number} deltaTime Frame duration in milliseconds\r\n *\r\n * @returns {number} Displacement, relative to the end position.\r\n */\r\n easeFrame(deltaPosition, deltaTime) {\r\n // Inspired by Apple Webkit and Android spring function implementation\r\n // https://en.wikipedia.org/wiki/Oscillation\r\n // https://en.wikipedia.org/wiki/Damping_ratio\r\n // we ignore mass (assume that it's 1kg)\r\n\r\n let displacement = 0;\r\n let coeff;\r\n\r\n deltaTime /= 1000;\r\n\r\n const naturalDumpingPow = Math.E ** (-this._dampingRatio * this._naturalFrequency * deltaTime);\r\n\r\n if (this._dampingRatio === 1) {\r\n coeff = this.velocity + this._naturalFrequency * deltaPosition;\r\n\r\n displacement = (deltaPosition + coeff * deltaTime) * naturalDumpingPow;\r\n\r\n this.velocity = displacement\r\n * (-this._naturalFrequency) + coeff\r\n * naturalDumpingPow;\r\n } else if (this._dampingRatio < 1) {\r\n coeff = (1 / this._dampedFrequency)\r\n * (this._dampingRatio * this._naturalFrequency * deltaPosition + this.velocity);\r\n\r\n const dumpedFCos = Math.cos(this._dampedFrequency * deltaTime);\r\n const dumpedFSin = Math.sin(this._dampedFrequency * deltaTime);\r\n\r\n displacement = naturalDumpingPow\r\n * (deltaPosition * dumpedFCos + coeff * dumpedFSin);\r\n\r\n this.velocity = displacement\r\n * (-this._naturalFrequency)\r\n * this._dampingRatio\r\n + naturalDumpingPow\r\n * (-this._dampedFrequency * deltaPosition * dumpedFSin\r\n + this._dampedFrequency * coeff * dumpedFCos);\r\n }\r\n\r\n // Overdamped (>1) damping ratio is not supported\r\n\r\n return displacement;\r\n }\r\n}\r\n\r\nexport default SpringEaser;\r\n","import SpringEaser from './spring-easer.js';\r\n\r\n/** @typedef {import('./animations.js').SharedAnimationProps} SharedAnimationProps */\r\n\r\n/**\r\n * @typedef {Object} DefaultSpringAnimationProps\r\n *\r\n * @prop {number} start\r\n * @prop {number} end\r\n * @prop {number} velocity\r\n * @prop {number} [dampingRatio]\r\n * @prop {number} [naturalFrequency]\r\n * @prop {(end: number) => void} onUpdate\r\n */\r\n\r\n/** @typedef {SharedAnimationProps & DefaultSpringAnimationProps} SpringAnimationProps */\r\n\r\nclass SpringAnimation {\r\n /**\r\n * @param {SpringAnimationProps} props\r\n */\r\n constructor(props) {\r\n this.props = props;\r\n this._raf = 0;\r\n\r\n const {\r\n start,\r\n end,\r\n velocity,\r\n onUpdate,\r\n onComplete,\r\n onFinish = () => {},\r\n dampingRatio,\r\n naturalFrequency\r\n } = props;\r\n\r\n this.onFinish = onFinish;\r\n\r\n const easer = new SpringEaser(velocity, dampingRatio, naturalFrequency);\r\n let prevTime = Date.now();\r\n let deltaPosition = start - end;\r\n\r\n const animationLoop = () => {\r\n if (this._raf) {\r\n deltaPosition = easer.easeFrame(deltaPosition, Date.now() - prevTime);\r\n\r\n // Stop the animation if velocity is low and position is close to end\r\n if (Math.abs(deltaPosition) < 1 && Math.abs(easer.velocity) < 50) {\r\n // Finalize the animation\r\n onUpdate(end);\r\n if (onComplete) {\r\n onComplete();\r\n }\r\n this.onFinish();\r\n } else {\r\n prevTime = Date.now();\r\n onUpdate(deltaPosition + end);\r\n this._raf = requestAnimationFrame(animationLoop);\r\n }\r\n }\r\n };\r\n\r\n this._raf = requestAnimationFrame(animationLoop);\r\n }\r\n\r\n // Destroy is called automatically onFinish\r\n destroy() {\r\n if (this._raf >= 0) {\r\n cancelAnimationFrame(this._raf);\r\n }\r\n this._raf = 0;\r\n }\r\n}\r\n\r\nexport default SpringAnimation;\r\n","import CSSAnimation from './css-animation.js';\r\nimport SpringAnimation from './spring-animation.js';\r\n\r\n/** @typedef {import('./css-animation.js').CssAnimationProps} CssAnimationProps */\r\n/** @typedef {import('./spring-animation.js').SpringAnimationProps} SpringAnimationProps */\r\n\r\n/** @typedef {Object} SharedAnimationProps\r\n * @prop {string} [name]\r\n * @prop {boolean} [isPan]\r\n * @prop {boolean} [isMainScroll]\r\n * @prop {VoidFunction} [onComplete]\r\n * @prop {VoidFunction} [onFinish]\r\n */\r\n\r\n/** @typedef {SpringAnimation | CSSAnimation} Animation */\r\n/** @typedef {SpringAnimationProps | CssAnimationProps} AnimationProps */\r\n\r\n/**\r\n * Manages animations\r\n */\r\nclass Animations {\r\n constructor() {\r\n /** @type {Animation[]} */\r\n this.activeAnimations = [];\r\n }\r\n\r\n /**\r\n * @param {SpringAnimationProps} props\r\n */\r\n startSpring(props) {\r\n this._start(props, true);\r\n }\r\n\r\n /**\r\n * @param {CssAnimationProps} props\r\n */\r\n startTransition(props) {\r\n this._start(props);\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {AnimationProps} props\r\n * @param {boolean} [isSpring]\r\n * @returns {Animation}\r\n */\r\n _start(props, isSpring) {\r\n const animation = isSpring\r\n ? new SpringAnimation(/** @type SpringAnimationProps */ (props))\r\n : new CSSAnimation(/** @type CssAnimationProps */ (props));\r\n\r\n this.activeAnimations.push(animation);\r\n animation.onFinish = () => this.stop(animation);\r\n\r\n return animation;\r\n }\r\n\r\n /**\r\n * @param {Animation} animation\r\n */\r\n stop(animation) {\r\n animation.destroy();\r\n const index = this.activeAnimations.indexOf(animation);\r\n if (index > -1) {\r\n this.activeAnimations.splice(index, 1);\r\n }\r\n }\r\n\r\n stopAll() { // _stopAllAnimations\r\n this.activeAnimations.forEach((animation) => {\r\n animation.destroy();\r\n });\r\n this.activeAnimations = [];\r\n }\r\n\r\n /**\r\n * Stop all pan or zoom transitions\r\n */\r\n stopAllPan() {\r\n this.activeAnimations = this.activeAnimations.filter((animation) => {\r\n if (animation.props.isPan) {\r\n animation.destroy();\r\n return false;\r\n }\r\n\r\n return true;\r\n });\r\n }\r\n\r\n stopMainScroll() {\r\n this.activeAnimations = this.activeAnimations.filter((animation) => {\r\n if (animation.props.isMainScroll) {\r\n animation.destroy();\r\n return false;\r\n }\r\n\r\n return true;\r\n });\r\n }\r\n\r\n /**\r\n * Returns true if main scroll transition is running\r\n */\r\n // isMainScrollRunning() {\r\n // return this.activeAnimations.some((animation) => {\r\n // return animation.props.isMainScroll;\r\n // });\r\n // }\r\n\r\n /**\r\n * Returns true if any pan or zoom transition is running\r\n */\r\n isPanRunning() {\r\n return this.activeAnimations.some((animation) => {\r\n return animation.props.isPan;\r\n });\r\n }\r\n}\r\n\r\nexport default Animations;\r\n","/** @typedef {import('./photoswipe.js').default} PhotoSwipe */\r\n\r\n/**\r\n * Handles scroll wheel.\r\n * Can pan and zoom current slide image.\r\n */\r\nclass ScrollWheel {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n pswp.events.add(pswp.element, 'wheel', /** @type EventListener */(this._onWheel.bind(this)));\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {WheelEvent} e\r\n */\r\n _onWheel(e) {\r\n e.preventDefault();\r\n const { currSlide } = this.pswp;\r\n let { deltaX, deltaY } = e;\r\n\r\n if (!currSlide) {\r\n return;\r\n }\r\n\r\n if (this.pswp.dispatch('wheel', { originalEvent: e }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (e.ctrlKey || this.pswp.options.wheelToZoom) {\r\n // zoom\r\n if (currSlide.isZoomable()) {\r\n let zoomFactor = -deltaY;\r\n if (e.deltaMode === 1 /* DOM_DELTA_LINE */) {\r\n zoomFactor *= 0.05;\r\n } else {\r\n zoomFactor *= e.deltaMode ? 1 : 0.002;\r\n }\r\n zoomFactor = 2 ** zoomFactor;\r\n\r\n const destZoomLevel = currSlide.currZoomLevel * zoomFactor;\r\n currSlide.zoomTo(destZoomLevel, {\r\n x: e.clientX,\r\n y: e.clientY\r\n });\r\n }\r\n } else {\r\n // pan\r\n if (currSlide.isPannable()) {\r\n if (e.deltaMode === 1 /* DOM_DELTA_LINE */) {\r\n // 18 - average line height\r\n deltaX *= 18;\r\n deltaY *= 18;\r\n }\r\n\r\n currSlide.panTo(\r\n currSlide.pan.x - deltaX,\r\n currSlide.pan.y - deltaY\r\n );\r\n }\r\n }\r\n }\r\n}\r\n\r\nexport default ScrollWheel;\r\n","import { createElement } from '../util/util.js';\r\n\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n\r\n/**\r\n * @template T\r\n * @typedef {import('../types.js').Methods} Methods\r\n */\r\n\r\n/**\r\n * @typedef {Object} UIElementMarkupProps\r\n * @prop {boolean} [isCustomSVG]\r\n * @prop {string} inner\r\n * @prop {string} [outlineID]\r\n * @prop {number | string} [size]\r\n */\r\n\r\n/**\r\n * @typedef {Object} UIElementData\r\n * @prop {DefaultUIElements | string} [name]\r\n * @prop {string} [className]\r\n * @prop {UIElementMarkup} [html]\r\n * @prop {boolean} [isButton]\r\n * @prop {keyof HTMLElementTagNameMap} [tagName]\r\n * @prop {string} [title]\r\n * @prop {string} [ariaLabel]\r\n * @prop {(element: HTMLElement, pswp: PhotoSwipe) => void} [onInit]\r\n * @prop {Methods | ((e: MouseEvent, element: HTMLElement, pswp: PhotoSwipe) => void)} [onClick]\r\n * @prop {'bar' | 'wrapper' | 'root'} [appendTo]\r\n * @prop {number} [order]\r\n */\r\n\r\n/** @typedef {'arrowPrev' | 'arrowNext' | 'close' | 'zoom' | 'counter'} DefaultUIElements */\r\n\r\n/** @typedef {string | UIElementMarkupProps} UIElementMarkup */\r\n\r\n/**\r\n * @param {UIElementMarkup} [htmlData]\r\n * @returns {string}\r\n */\r\nfunction addElementHTML(htmlData) {\r\n if (typeof htmlData === 'string') {\r\n // Allow developers to provide full svg,\r\n // For example:\r\n // \r\n // \r\n // \r\n // \r\n // Can also be any HTML string.\r\n return htmlData;\r\n }\r\n\r\n if (!htmlData || !htmlData.isCustomSVG) {\r\n return '';\r\n }\r\n\r\n const svgData = htmlData;\r\n let out = '';\r\n // replace all %d with size\r\n out = out.split('%d').join(/** @type {string} */ (svgData.size || 32));\r\n\r\n // Icons may contain outline/shadow,\r\n // to make it we \"clone\" base icon shape and add border to it.\r\n // Icon itself and border are styled via CSS.\r\n //\r\n // Property shadowID defines ID of element that should be cloned.\r\n if (svgData.outlineID) {\r\n out += '';\r\n }\r\n\r\n out += svgData.inner;\r\n\r\n out += '';\r\n\r\n return out;\r\n}\r\n\r\nclass UIElement {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n * @param {UIElementData} data\r\n */\r\n constructor(pswp, data) {\r\n const name = data.name || data.className;\r\n let elementHTML = data.html;\r\n\r\n // @ts-expect-error lookup only by `data.name` maybe?\r\n if (pswp.options[name] === false) {\r\n // exit if element is disabled from options\r\n return;\r\n }\r\n\r\n // Allow to override SVG icons from options\r\n // @ts-expect-error lookup only by `data.name` maybe?\r\n if (typeof pswp.options[name + 'SVG'] === 'string') {\r\n // arrowPrevSVG\r\n // arrowNextSVG\r\n // closeSVG\r\n // zoomSVG\r\n // @ts-expect-error lookup only by `data.name` maybe?\r\n elementHTML = pswp.options[name + 'SVG'];\r\n }\r\n\r\n pswp.dispatch('uiElementCreate', { data });\r\n\r\n let className = '';\r\n if (data.isButton) {\r\n className += 'pswp__button ';\r\n className += (data.className || `pswp__button--${data.name}`);\r\n } else {\r\n className += (data.className || `pswp__${data.name}`);\r\n }\r\n\r\n let tagName = data.isButton ? (data.tagName || 'button') : (data.tagName || 'div');\r\n tagName = /** @type {keyof HTMLElementTagNameMap} */ (tagName.toLowerCase());\r\n /** @type {HTMLElement} */\r\n const element = createElement(className, tagName);\r\n\r\n if (data.isButton) {\r\n if (tagName === 'button') {\r\n /** @type {HTMLButtonElement} */ (element).type = 'button';\r\n }\r\n\r\n let { title } = data;\r\n const { ariaLabel } = data;\r\n\r\n // @ts-expect-error lookup only by `data.name` maybe?\r\n if (typeof pswp.options[name + 'Title'] === 'string') {\r\n // @ts-expect-error lookup only by `data.name` maybe?\r\n title = pswp.options[name + 'Title'];\r\n }\r\n\r\n if (title) {\r\n element.title = title;\r\n }\r\n\r\n const ariaText = ariaLabel || title;\r\n if (ariaText) {\r\n element.setAttribute('aria-label', ariaText);\r\n }\r\n }\r\n\r\n element.innerHTML = addElementHTML(elementHTML);\r\n\r\n if (data.onInit) {\r\n data.onInit(element, pswp);\r\n }\r\n\r\n if (data.onClick) {\r\n element.onclick = (e) => {\r\n if (typeof data.onClick === 'string') {\r\n // @ts-ignore\r\n pswp[data.onClick]();\r\n } else if (typeof data.onClick === 'function') {\r\n data.onClick(e, element, pswp);\r\n }\r\n };\r\n }\r\n\r\n // Top bar is default position\r\n const appendTo = data.appendTo || 'bar';\r\n /** @type {HTMLElement | undefined} root element by default */\r\n let container = pswp.element;\r\n if (appendTo === 'bar') {\r\n if (!pswp.topBar) {\r\n pswp.topBar = createElement('pswp__top-bar pswp__hide-on-close', 'div', pswp.scrollWrap);\r\n }\r\n container = pswp.topBar;\r\n } else {\r\n // element outside of top bar gets a secondary class\r\n // that makes element fade out on close\r\n element.classList.add('pswp__hide-on-close');\r\n\r\n if (appendTo === 'wrapper') {\r\n container = pswp.scrollWrap;\r\n }\r\n }\r\n\r\n container?.appendChild(pswp.applyFilters('uiElement', element, data));\r\n }\r\n}\r\n\r\nexport default UIElement;\r\n","/*\r\n Backward and forward arrow buttons\r\n */\r\n\r\n/** @typedef {import('./ui-element.js').UIElementData} UIElementData */\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n\r\n/**\r\n *\r\n * @param {HTMLElement} element\r\n * @param {PhotoSwipe} pswp\r\n * @param {boolean} [isNextButton]\r\n */\r\nfunction initArrowButton(element, pswp, isNextButton) {\r\n element.classList.add('pswp__button--arrow');\r\n // TODO: this should point to a unique id for this instance\r\n element.setAttribute('aria-controls', 'pswp__items');\r\n pswp.on('change', () => {\r\n if (!pswp.options.loop) {\r\n if (isNextButton) {\r\n /** @type {HTMLButtonElement} */\r\n (element).disabled = !(pswp.currIndex < pswp.getNumItems() - 1);\r\n } else {\r\n /** @type {HTMLButtonElement} */\r\n (element).disabled = !(pswp.currIndex > 0);\r\n }\r\n }\r\n });\r\n}\r\n\r\n/** @type {UIElementData} */\r\nexport const arrowPrev = {\r\n name: 'arrowPrev',\r\n className: 'pswp__button--arrow--prev',\r\n title: 'Previous',\r\n order: 10,\r\n isButton: true,\r\n appendTo: 'wrapper',\r\n html: {\r\n isCustomSVG: true,\r\n size: 60,\r\n inner: '',\r\n outlineID: 'pswp__icn-arrow'\r\n },\r\n onClick: 'prev',\r\n onInit: initArrowButton\r\n};\r\n\r\n/** @type {UIElementData} */\r\nexport const arrowNext = {\r\n name: 'arrowNext',\r\n className: 'pswp__button--arrow--next',\r\n title: 'Next',\r\n order: 11,\r\n isButton: true,\r\n appendTo: 'wrapper',\r\n html: {\r\n isCustomSVG: true,\r\n size: 60,\r\n inner: '',\r\n outlineID: 'pswp__icn-arrow'\r\n },\r\n onClick: 'next',\r\n onInit: (el, pswp) => {\r\n initArrowButton(el, pswp, true);\r\n }\r\n};\r\n","/** @type {import('./ui-element.js').UIElementData} UIElementData */\r\nconst closeButton = {\r\n name: 'close',\r\n title: 'Close',\r\n order: 20,\r\n isButton: true,\r\n html: {\r\n isCustomSVG: true,\r\n inner: '',\r\n outlineID: 'pswp__icn-close'\r\n },\r\n onClick: 'close'\r\n};\r\n\r\nexport default closeButton;\r\n","/** @type {import('./ui-element.js').UIElementData} UIElementData */\r\nconst zoomButton = {\r\n name: 'zoom',\r\n title: 'Zoom',\r\n order: 10,\r\n isButton: true,\r\n html: {\r\n isCustomSVG: true,\r\n // eslint-disable-next-line max-len\r\n inner: ''\r\n + ''\r\n + '',\r\n outlineID: 'pswp__icn-zoom'\r\n },\r\n onClick: 'toggleZoom'\r\n};\r\n\r\nexport default zoomButton;\r\n","/** @type {import('./ui-element.js').UIElementData} UIElementData */\r\nexport const loadingIndicator = {\r\n name: 'preloader',\r\n appendTo: 'bar',\r\n order: 7,\r\n html: {\r\n isCustomSVG: true,\r\n // eslint-disable-next-line max-len\r\n inner: '',\r\n outlineID: 'pswp__icn-loading'\r\n },\r\n onInit: (indicatorElement, pswp) => {\r\n /** @type {boolean | undefined} */\r\n let isVisible;\r\n /** @type {NodeJS.Timeout | null} */\r\n let delayTimeout = null;\r\n\r\n /**\r\n * @param {string} className\r\n * @param {boolean} add\r\n */\r\n const toggleIndicatorClass = (className, add) => {\r\n indicatorElement.classList.toggle('pswp__preloader--' + className, add);\r\n };\r\n\r\n /**\r\n * @param {boolean} visible\r\n */\r\n const setIndicatorVisibility = (visible) => {\r\n if (isVisible !== visible) {\r\n isVisible = visible;\r\n toggleIndicatorClass('active', visible);\r\n }\r\n };\r\n\r\n const updatePreloaderVisibility = () => {\r\n if (!pswp.currSlide?.content.isLoading()) {\r\n setIndicatorVisibility(false);\r\n if (delayTimeout) {\r\n clearTimeout(delayTimeout);\r\n delayTimeout = null;\r\n }\r\n return;\r\n }\r\n\r\n if (!delayTimeout) {\r\n // display loading indicator with delay\r\n delayTimeout = setTimeout(() => {\r\n setIndicatorVisibility(Boolean(pswp.currSlide?.content.isLoading()));\r\n delayTimeout = null;\r\n }, pswp.options.preloaderDelay);\r\n }\r\n };\r\n\r\n pswp.on('change', updatePreloaderVisibility);\r\n\r\n pswp.on('loadComplete', (e) => {\r\n if (pswp.currSlide === e.slide) {\r\n updatePreloaderVisibility();\r\n }\r\n });\r\n\r\n // expose the method\r\n if (pswp.ui) {\r\n pswp.ui.updatePreloaderVisibility = updatePreloaderVisibility;\r\n }\r\n }\r\n};\r\n","/** @type {import('./ui-element.js').UIElementData} UIElementData */\r\nexport const counterIndicator = {\r\n name: 'counter',\r\n order: 5,\r\n onInit: (counterElement, pswp) => {\r\n pswp.on('change', () => {\r\n counterElement.innerText = (pswp.currIndex + 1)\r\n + pswp.options.indexIndicatorSep\r\n + pswp.getNumItems();\r\n });\r\n }\r\n};\r\n","import UIElement from './ui-element.js';\r\nimport { arrowPrev, arrowNext } from './button-arrow.js';\r\nimport closeButton from './button-close.js';\r\nimport zoomButton from './button-zoom.js';\r\nimport { loadingIndicator } from './loading-indicator.js';\r\nimport { counterIndicator } from './counter-indicator.js';\r\n\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('./ui-element.js').UIElementData} UIElementData */\r\n\r\n/**\r\n * Set special class on element when image is zoomed.\r\n *\r\n * By default, it is used to adjust\r\n * zoom icon and zoom cursor via CSS.\r\n *\r\n * @param {HTMLElement} el\r\n * @param {boolean} isZoomedIn\r\n */\r\nfunction setZoomedIn(el, isZoomedIn) {\r\n el.classList.toggle('pswp--zoomed-in', isZoomedIn);\r\n}\r\n\r\nclass UI {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n this.isRegistered = false;\r\n /** @type {UIElementData[]} */\r\n this.uiElementsData = [];\r\n /** @type {(UIElement | UIElementData)[]} */\r\n this.items = [];\r\n /** @type {() => void} */\r\n this.updatePreloaderVisibility = () => {};\r\n\r\n /**\r\n * @private\r\n * @type {number | undefined}\r\n */\r\n this._lastUpdatedZoomLevel = undefined;\r\n }\r\n\r\n init() {\r\n const { pswp } = this;\r\n this.isRegistered = false;\r\n this.uiElementsData = [\r\n closeButton,\r\n arrowPrev,\r\n arrowNext,\r\n zoomButton,\r\n loadingIndicator,\r\n counterIndicator\r\n ];\r\n\r\n pswp.dispatch('uiRegister');\r\n\r\n // sort by order\r\n this.uiElementsData.sort((a, b) => {\r\n // default order is 0\r\n return (a.order || 0) - (b.order || 0);\r\n });\r\n\r\n this.items = [];\r\n\r\n this.isRegistered = true;\r\n this.uiElementsData.forEach((uiElementData) => {\r\n this.registerElement(uiElementData);\r\n });\r\n\r\n pswp.on('change', () => {\r\n pswp.element?.classList.toggle('pswp--one-slide', pswp.getNumItems() === 1);\r\n });\r\n\r\n pswp.on('zoomPanUpdate', () => this._onZoomPanUpdate());\r\n }\r\n\r\n /**\r\n * @param {UIElementData} elementData\r\n */\r\n registerElement(elementData) {\r\n if (this.isRegistered) {\r\n this.items.push(\r\n new UIElement(this.pswp, elementData)\r\n );\r\n } else {\r\n this.uiElementsData.push(elementData);\r\n }\r\n }\r\n\r\n /**\r\n * Fired each time zoom or pan position is changed.\r\n * Update classes that control visibility of zoom button and cursor icon.\r\n *\r\n * @private\r\n */\r\n _onZoomPanUpdate() {\r\n const { template, currSlide, options } = this.pswp;\r\n\r\n if (this.pswp.opener.isClosing || !template || !currSlide) {\r\n return;\r\n }\r\n\r\n let { currZoomLevel } = currSlide;\r\n\r\n // if not open yet - check against initial zoom level\r\n if (!this.pswp.opener.isOpen) {\r\n currZoomLevel = currSlide.zoomLevels.initial;\r\n }\r\n\r\n if (currZoomLevel === this._lastUpdatedZoomLevel) {\r\n return;\r\n }\r\n this._lastUpdatedZoomLevel = currZoomLevel;\r\n\r\n const currZoomLevelDiff = currSlide.zoomLevels.initial - currSlide.zoomLevels.secondary;\r\n\r\n // Initial and secondary zoom levels are almost equal\r\n if (Math.abs(currZoomLevelDiff) < 0.01 || !currSlide.isZoomable()) {\r\n // disable zoom\r\n setZoomedIn(template, false);\r\n template.classList.remove('pswp--zoom-allowed');\r\n return;\r\n }\r\n\r\n template.classList.add('pswp--zoom-allowed');\r\n\r\n const potentialZoomLevel = currZoomLevel === currSlide.zoomLevels.initial\r\n ? currSlide.zoomLevels.secondary : currSlide.zoomLevels.initial;\r\n\r\n setZoomedIn(template, potentialZoomLevel <= currZoomLevel);\r\n\r\n if (options.imageClickAction === 'zoom'\r\n || options.imageClickAction === 'zoom-or-close') {\r\n template.classList.add('pswp--click-to-zoom');\r\n }\r\n }\r\n}\r\n\r\nexport default UI;\r\n","/** @typedef {import('./slide.js').SlideData} SlideData */\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n\r\n/** @typedef {{ x: number; y: number; w: number; innerRect?: { w: number; h: number; x: number; y: number } }} Bounds */\r\n\r\n/**\r\n * @param {HTMLElement} el\r\n * @returns Bounds\r\n */\r\nfunction getBoundsByElement(el) {\r\n const thumbAreaRect = el.getBoundingClientRect();\r\n return {\r\n x: thumbAreaRect.left,\r\n y: thumbAreaRect.top,\r\n w: thumbAreaRect.width\r\n };\r\n}\r\n\r\n/**\r\n * @param {HTMLElement} el\r\n * @param {number} imageWidth\r\n * @param {number} imageHeight\r\n * @returns Bounds\r\n */\r\nfunction getCroppedBoundsByElement(el, imageWidth, imageHeight) {\r\n const thumbAreaRect = el.getBoundingClientRect();\r\n\r\n // fill image into the area\r\n // (do they same as object-fit:cover does to retrieve coordinates)\r\n const hRatio = thumbAreaRect.width / imageWidth;\r\n const vRatio = thumbAreaRect.height / imageHeight;\r\n const fillZoomLevel = hRatio > vRatio ? hRatio : vRatio;\r\n\r\n const offsetX = (thumbAreaRect.width - imageWidth * fillZoomLevel) / 2;\r\n const offsetY = (thumbAreaRect.height - imageHeight * fillZoomLevel) / 2;\r\n\r\n /**\r\n * Coordinates of the image,\r\n * as if it was not cropped,\r\n * height is calculated automatically\r\n *\r\n * @type {Bounds}\r\n */\r\n const bounds = {\r\n x: thumbAreaRect.left + offsetX,\r\n y: thumbAreaRect.top + offsetY,\r\n w: imageWidth * fillZoomLevel\r\n };\r\n\r\n // Coordinates of inner crop area\r\n // relative to the image\r\n bounds.innerRect = {\r\n w: thumbAreaRect.width,\r\n h: thumbAreaRect.height,\r\n x: offsetX,\r\n y: offsetY\r\n };\r\n\r\n return bounds;\r\n}\r\n\r\n/**\r\n * Get dimensions of thumbnail image\r\n * (click on which opens photoswipe or closes photoswipe to)\r\n *\r\n * @param {number} index\r\n * @param {SlideData} itemData\r\n * @param {PhotoSwipe} instance PhotoSwipe instance\r\n * @returns {Bounds | undefined}\r\n */\r\nexport function getThumbBounds(index, itemData, instance) {\r\n // legacy event, before filters were introduced\r\n const event = instance.dispatch('thumbBounds', {\r\n index,\r\n itemData,\r\n instance\r\n });\r\n // @ts-expect-error\r\n if (event.thumbBounds) {\r\n // @ts-expect-error\r\n return event.thumbBounds;\r\n }\r\n\r\n const { element } = itemData;\r\n /** @type {Bounds | undefined} */\r\n let thumbBounds;\r\n /** @type {HTMLElement | null | undefined} */\r\n let thumbnail;\r\n\r\n if (element && instance.options.thumbSelector !== false) {\r\n const thumbSelector = instance.options.thumbSelector || 'img';\r\n thumbnail = element.matches(thumbSelector)\r\n ? element : /** @type {HTMLElement | null} */ (element.querySelector(thumbSelector));\r\n }\r\n\r\n thumbnail = instance.applyFilters('thumbEl', thumbnail, itemData, index);\r\n\r\n if (thumbnail) {\r\n if (!itemData.thumbCropped) {\r\n thumbBounds = getBoundsByElement(thumbnail);\r\n } else {\r\n thumbBounds = getCroppedBoundsByElement(\r\n thumbnail,\r\n itemData.width || itemData.w || 0,\r\n itemData.height || itemData.h || 0\r\n );\r\n }\r\n }\r\n\r\n return instance.applyFilters('thumbBounds', thumbBounds, itemData, index);\r\n}\r\n","/** @typedef {import('../lightbox/lightbox.js').default} PhotoSwipeLightbox */\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../photoswipe.js').DataSource} DataSource */\r\n/** @typedef {import('../ui/ui-element.js').UIElementData} UIElementData */\r\n/** @typedef {import('../slide/content.js').default} ContentDefault */\r\n/** @typedef {import('../slide/slide.js').default} Slide */\r\n/** @typedef {import('../slide/slide.js').SlideData} SlideData */\r\n/** @typedef {import('../slide/zoom-level.js').default} ZoomLevel */\r\n/** @typedef {import('../slide/get-thumb-bounds.js').Bounds} Bounds */\r\n\r\n/**\r\n * Allow adding an arbitrary props to the Content\r\n * https://photoswipe.com/custom-content/#using-webp-image-format\r\n * @typedef {ContentDefault & Record} Content\r\n */\r\n/** @typedef {{ x?: number; y?: number }} Point */\r\n\r\n/**\r\n * @typedef {Object} PhotoSwipeEventsMap https://photoswipe.com/events/\r\n *\r\n *\r\n * https://photoswipe.com/adding-ui-elements/\r\n *\r\n * @prop {undefined} uiRegister\r\n * @prop {{ data: UIElementData }} uiElementCreate\r\n *\r\n *\r\n * https://photoswipe.com/events/#initialization-events\r\n *\r\n * @prop {undefined} beforeOpen\r\n * @prop {undefined} firstUpdate\r\n * @prop {undefined} initialLayout\r\n * @prop {undefined} change\r\n * @prop {undefined} afterInit\r\n * @prop {undefined} bindEvents\r\n *\r\n *\r\n * https://photoswipe.com/events/#opening-or-closing-transition-events\r\n *\r\n * @prop {undefined} openingAnimationStart\r\n * @prop {undefined} openingAnimationEnd\r\n * @prop {undefined} closingAnimationStart\r\n * @prop {undefined} closingAnimationEnd\r\n *\r\n *\r\n * https://photoswipe.com/events/#closing-events\r\n *\r\n * @prop {undefined} close\r\n * @prop {undefined} destroy\r\n *\r\n *\r\n * https://photoswipe.com/events/#pointer-and-gesture-events\r\n *\r\n * @prop {{ originalEvent: PointerEvent }} pointerDown\r\n * @prop {{ originalEvent: PointerEvent }} pointerMove\r\n * @prop {{ originalEvent: PointerEvent }} pointerUp\r\n * @prop {{ bgOpacity: number }} pinchClose can be default prevented\r\n * @prop {{ panY: number }} verticalDrag can be default prevented\r\n *\r\n *\r\n * https://photoswipe.com/events/#slide-content-events\r\n *\r\n * @prop {{ content: Content }} contentInit\r\n * @prop {{ content: Content; isLazy: boolean }} contentLoad can be default prevented\r\n * @prop {{ content: Content; isLazy: boolean }} contentLoadImage can be default prevented\r\n * @prop {{ content: Content; slide: Slide; isError?: boolean }} loadComplete\r\n * @prop {{ content: Content; slide: Slide }} loadError\r\n * @prop {{ content: Content; width: number; height: number }} contentResize can be default prevented\r\n * @prop {{ content: Content; width: number; height: number; slide: Slide }} imageSizeChange\r\n * @prop {{ content: Content }} contentLazyLoad can be default prevented\r\n * @prop {{ content: Content }} contentAppend can be default prevented\r\n * @prop {{ content: Content }} contentActivate can be default prevented\r\n * @prop {{ content: Content }} contentDeactivate can be default prevented\r\n * @prop {{ content: Content }} contentRemove can be default prevented\r\n * @prop {{ content: Content }} contentDestroy can be default prevented\r\n *\r\n *\r\n * undocumented\r\n *\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} imageClickAction can be default prevented\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} bgClickAction can be default prevented\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} tapAction can be default prevented\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} doubleTapAction can be default prevented\r\n *\r\n * @prop {{ originalEvent: KeyboardEvent }} keydown can be default prevented\r\n * @prop {{ x: number; dragging: boolean }} moveMainScroll\r\n * @prop {{ slide: Slide }} firstZoomPan\r\n * @prop {{ slide: Slide | undefined, data: SlideData, index: number }} gettingData\r\n * @prop {undefined} beforeResize\r\n * @prop {undefined} resize\r\n * @prop {undefined} viewportSize\r\n * @prop {undefined} updateScrollOffset\r\n * @prop {{ slide: Slide }} slideInit\r\n * @prop {{ slide: Slide }} afterSetContent\r\n * @prop {{ slide: Slide }} slideLoad\r\n * @prop {{ slide: Slide }} appendHeavy can be default prevented\r\n * @prop {{ slide: Slide }} appendHeavyContent\r\n * @prop {{ slide: Slide }} slideActivate\r\n * @prop {{ slide: Slide }} slideDeactivate\r\n * @prop {{ slide: Slide }} slideDestroy\r\n * @prop {{ destZoomLevel: number, centerPoint: Point | undefined, transitionDuration: number | false | undefined }} beforeZoomTo\r\n * @prop {{ slide: Slide }} zoomPanUpdate\r\n * @prop {{ slide: Slide }} initialZoomPan\r\n * @prop {{ slide: Slide }} calcSlideSize\r\n * @prop {undefined} resolutionChanged\r\n * @prop {{ originalEvent: WheelEvent }} wheel can be default prevented\r\n * @prop {{ content: Content }} contentAppendImage can be default prevented\r\n * @prop {{ index: number; itemData: SlideData }} lazyLoadSlide can be default prevented\r\n * @prop {undefined} lazyLoad\r\n * @prop {{ slide: Slide }} calcBounds\r\n * @prop {{ zoomLevels: ZoomLevel, slideData: SlideData }} zoomLevelsUpdate\r\n *\r\n *\r\n * legacy\r\n *\r\n * @prop {undefined} init\r\n * @prop {undefined} initialZoomIn\r\n * @prop {undefined} initialZoomOut\r\n * @prop {undefined} initialZoomInEnd\r\n * @prop {undefined} initialZoomOutEnd\r\n * @prop {{ dataSource: DataSource | undefined, numItems: number }} numItems\r\n * @prop {{ itemData: SlideData; index: number }} itemData\r\n * @prop {{ index: number, itemData: SlideData, instance: PhotoSwipe }} thumbBounds\r\n */\r\n\r\n/**\r\n * @typedef {Object} PhotoSwipeFiltersMap https://photoswipe.com/filters/\r\n *\r\n * @prop {(numItems: number, dataSource: DataSource | undefined) => number} numItems\r\n * Modify the total amount of slides. Example on Data sources page.\r\n * https://photoswipe.com/filters/#numitems\r\n *\r\n * @prop {(itemData: SlideData, index: number) => SlideData} itemData\r\n * Modify slide item data. Example on Data sources page.\r\n * https://photoswipe.com/filters/#itemdata\r\n *\r\n * @prop {(itemData: SlideData, element: HTMLElement, linkEl: HTMLAnchorElement) => SlideData} domItemData\r\n * Modify item data when it's parsed from DOM element. Example on Data sources page.\r\n * https://photoswipe.com/filters/#domitemdata\r\n *\r\n * @prop {(clickedIndex: number, e: MouseEvent, instance: PhotoSwipeLightbox) => number} clickedIndex\r\n * Modify clicked gallery item index.\r\n * https://photoswipe.com/filters/#clickedindex\r\n *\r\n * @prop {(placeholderSrc: string | false, content: Content) => string | false} placeholderSrc\r\n * Modify placeholder image source.\r\n * https://photoswipe.com/filters/#placeholdersrc\r\n *\r\n * @prop {(isContentLoading: boolean, content: Content) => boolean} isContentLoading\r\n * Modify if the content is currently loading.\r\n * https://photoswipe.com/filters/#iscontentloading\r\n *\r\n * @prop {(isContentZoomable: boolean, content: Content) => boolean} isContentZoomable\r\n * Modify if the content can be zoomed.\r\n * https://photoswipe.com/filters/#iscontentzoomable\r\n *\r\n * @prop {(useContentPlaceholder: boolean, content: Content) => boolean} useContentPlaceholder\r\n * Modify if the placeholder should be used for the content.\r\n * https://photoswipe.com/filters/#usecontentplaceholder\r\n *\r\n * @prop {(isKeepingPlaceholder: boolean, content: Content) => boolean} isKeepingPlaceholder\r\n * Modify if the placeholder should be kept after the content is loaded.\r\n * https://photoswipe.com/filters/#iskeepingplaceholder\r\n *\r\n *\r\n * @prop {(contentErrorElement: HTMLElement, content: Content) => HTMLElement} contentErrorElement\r\n * Modify an element when the content has error state (for example, if image cannot be loaded).\r\n * https://photoswipe.com/filters/#contenterrorelement\r\n *\r\n * @prop {(element: HTMLElement, data: UIElementData) => HTMLElement} uiElement\r\n * Modify a UI element that's being created.\r\n * https://photoswipe.com/filters/#uielement\r\n *\r\n * @prop {(thumbnail: HTMLElement | null | undefined, itemData: SlideData, index: number) => HTMLElement} thumbEl\r\n * Modify the thumbnail element from which opening zoom animation starts or ends.\r\n * https://photoswipe.com/filters/#thumbel\r\n *\r\n * @prop {(thumbBounds: Bounds | undefined, itemData: SlideData, index: number) => Bounds} thumbBounds\r\n * Modify the thumbnail bounds from which opening zoom animation starts or ends.\r\n * https://photoswipe.com/filters/#thumbbounds\r\n *\r\n * @prop {(srcsetSizesWidth: number, content: Content) => number} srcsetSizesWidth\r\n *\r\n * @prop {(preventPointerEvent: boolean, event: PointerEvent, pointerType: string) => boolean} preventPointerEvent\r\n *\r\n */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @typedef {{ fn: PhotoSwipeFiltersMap[T], priority: number }} Filter\r\n */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {PhotoSwipeEventsMap[T] extends undefined ? PhotoSwipeEvent : PhotoSwipeEvent & PhotoSwipeEventsMap[T]} AugmentedEvent\r\n */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {(event: AugmentedEvent) => void} EventCallback\r\n */\r\n\r\n/**\r\n * Base PhotoSwipe event object\r\n *\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n */\r\nclass PhotoSwipeEvent {\r\n /**\r\n * @param {T} type\r\n * @param {PhotoSwipeEventsMap[T]} [details]\r\n */\r\n constructor(type, details) {\r\n this.type = type;\r\n this.defaultPrevented = false;\r\n if (details) {\r\n Object.assign(this, details);\r\n }\r\n }\r\n\r\n preventDefault() {\r\n this.defaultPrevented = true;\r\n }\r\n}\r\n\r\n/**\r\n * PhotoSwipe base class that can listen and dispatch for events.\r\n * Shared by PhotoSwipe Core and PhotoSwipe Lightbox, extended by base.js\r\n */\r\nclass Eventable {\r\n constructor() {\r\n /**\r\n * @type {{ [T in keyof PhotoSwipeEventsMap]?: ((event: AugmentedEvent) => void)[] }}\r\n */\r\n this._listeners = {};\r\n\r\n /**\r\n * @type {{ [T in keyof PhotoSwipeFiltersMap]?: Filter[] }}\r\n */\r\n this._filters = {};\r\n\r\n /** @type {PhotoSwipe | undefined} */\r\n this.pswp = undefined;\r\n\r\n /** @type {PhotoSwipeOptions | undefined} */\r\n this.options = undefined;\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @param {T} name\r\n * @param {PhotoSwipeFiltersMap[T]} fn\r\n * @param {number} priority\r\n */\r\n addFilter(name, fn, priority = 100) {\r\n if (!this._filters[name]) {\r\n this._filters[name] = [];\r\n }\r\n\r\n this._filters[name]?.push({ fn, priority });\r\n this._filters[name]?.sort((f1, f2) => f1.priority - f2.priority);\r\n\r\n this.pswp?.addFilter(name, fn, priority);\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @param {T} name\r\n * @param {PhotoSwipeFiltersMap[T]} fn\r\n */\r\n removeFilter(name, fn) {\r\n if (this._filters[name]) {\r\n // @ts-expect-error\r\n this._filters[name] = this._filters[name].filter(filter => (filter.fn !== fn));\r\n }\r\n\r\n if (this.pswp) {\r\n this.pswp.removeFilter(name, fn);\r\n }\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @param {T} name\r\n * @param {Parameters} args\r\n * @returns {Parameters[0]}\r\n */\r\n applyFilters(name, ...args) {\r\n this._filters[name]?.forEach((filter) => {\r\n // @ts-expect-error\r\n args[0] = filter.fn.apply(this, args);\r\n });\r\n return args[0];\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @param {T} name\r\n * @param {EventCallback} fn\r\n */\r\n on(name, fn) {\r\n if (!this._listeners[name]) {\r\n this._listeners[name] = [];\r\n }\r\n this._listeners[name]?.push(fn);\r\n\r\n // When binding events to lightbox,\r\n // also bind events to PhotoSwipe Core,\r\n // if it's open.\r\n this.pswp?.on(name, fn);\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @param {T} name\r\n * @param {EventCallback} fn\r\n */\r\n off(name, fn) {\r\n if (this._listeners[name]) {\r\n // @ts-expect-error\r\n this._listeners[name] = this._listeners[name].filter(listener => (fn !== listener));\r\n }\r\n\r\n this.pswp?.off(name, fn);\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @param {T} name\r\n * @param {PhotoSwipeEventsMap[T]} [details]\r\n * @returns {AugmentedEvent}\r\n */\r\n dispatch(name, details) {\r\n if (this.pswp) {\r\n return this.pswp.dispatch(name, details);\r\n }\r\n\r\n const event = /** @type {AugmentedEvent} */ (new PhotoSwipeEvent(name, details));\r\n\r\n this._listeners[name]?.forEach((listener) => {\r\n listener.call(this, event);\r\n });\r\n\r\n return event;\r\n }\r\n}\r\n\r\nexport default Eventable;\r\n","import { createElement, setWidthHeight, toTransformString } from '../util/util.js';\r\n\r\nclass Placeholder {\r\n /**\r\n * @param {string | false} imageSrc\r\n * @param {HTMLElement} container\r\n */\r\n constructor(imageSrc, container) {\r\n // Create placeholder\r\n // (stretched thumbnail or simple div behind the main image)\r\n /** @type {HTMLImageElement | HTMLDivElement | null} */\r\n this.element = createElement(\r\n 'pswp__img pswp__img--placeholder',\r\n imageSrc ? 'img' : 'div',\r\n container\r\n );\r\n\r\n if (imageSrc) {\r\n const imgEl = /** @type {HTMLImageElement} */ (this.element);\r\n imgEl.decoding = 'async';\r\n imgEl.alt = '';\r\n imgEl.src = imageSrc;\r\n imgEl.setAttribute('role', 'presentation');\r\n }\r\n\r\n this.element.setAttribute('aria-hidden', 'true');\r\n }\r\n\r\n /**\r\n * @param {number} width\r\n * @param {number} height\r\n */\r\n setDisplayedSize(width, height) {\r\n if (!this.element) {\r\n return;\r\n }\r\n\r\n if (this.element.tagName === 'IMG') {\r\n // Use transform scale() to modify img placeholder size\r\n // (instead of changing width/height directly).\r\n // This helps with performance, specifically in iOS15 Safari.\r\n setWidthHeight(this.element, 250, 'auto');\r\n this.element.style.transformOrigin = '0 0';\r\n this.element.style.transform = toTransformString(0, 0, width / 250);\r\n } else {\r\n setWidthHeight(this.element, width, height);\r\n }\r\n }\r\n\r\n destroy() {\r\n if (this.element?.parentNode) {\r\n this.element.remove();\r\n }\r\n this.element = null;\r\n }\r\n}\r\n\r\nexport default Placeholder;\r\n","import { createElement, isSafari, LOAD_STATE, setWidthHeight } from '../util/util.js';\r\nimport Placeholder from './placeholder.js';\r\n\r\n/** @typedef {import('./slide.js').default} Slide */\r\n/** @typedef {import('./slide.js').SlideData} SlideData */\r\n/** @typedef {import('../core/base.js').default} PhotoSwipeBase */\r\n/** @typedef {import('../util/util.js').LoadState} LoadState */\r\n\r\nclass Content {\r\n /**\r\n * @param {SlideData} itemData Slide data\r\n * @param {PhotoSwipeBase} instance PhotoSwipe or PhotoSwipeLightbox instance\r\n * @param {number} index\r\n */\r\n constructor(itemData, instance, index) {\r\n this.instance = instance;\r\n this.data = itemData;\r\n this.index = index;\r\n\r\n /** @type {HTMLImageElement | HTMLDivElement | undefined} */\r\n this.element = undefined;\r\n /** @type {Placeholder | undefined} */\r\n this.placeholder = undefined;\r\n /** @type {Slide | undefined} */\r\n this.slide = undefined;\r\n\r\n this.displayedImageWidth = 0;\r\n this.displayedImageHeight = 0;\r\n\r\n this.width = Number(this.data.w) || Number(this.data.width) || 0;\r\n this.height = Number(this.data.h) || Number(this.data.height) || 0;\r\n\r\n this.isAttached = false;\r\n this.hasSlide = false;\r\n this.isDecoding = false;\r\n /** @type {LoadState} */\r\n this.state = LOAD_STATE.IDLE;\r\n\r\n if (this.data.type) {\r\n this.type = this.data.type;\r\n } else if (this.data.src) {\r\n this.type = 'image';\r\n } else {\r\n this.type = 'html';\r\n }\r\n\r\n this.instance.dispatch('contentInit', { content: this });\r\n }\r\n\r\n removePlaceholder() {\r\n if (this.placeholder && !this.keepPlaceholder()) {\r\n // With delay, as image might be loaded, but not rendered\r\n setTimeout(() => {\r\n if (this.placeholder) {\r\n this.placeholder.destroy();\r\n this.placeholder = undefined;\r\n }\r\n }, 1000);\r\n }\r\n }\r\n\r\n /**\r\n * Preload content\r\n *\r\n * @param {boolean} isLazy\r\n * @param {boolean} [reload]\r\n */\r\n load(isLazy, reload) {\r\n if (this.slide && this.usePlaceholder()) {\r\n if (!this.placeholder) {\r\n const placeholderSrc = this.instance.applyFilters(\r\n 'placeholderSrc',\r\n // use image-based placeholder only for the first slide,\r\n // as rendering (even small stretched thumbnail) is an expensive operation\r\n (this.data.msrc && this.slide.isFirstSlide) ? this.data.msrc : false,\r\n this\r\n );\r\n this.placeholder = new Placeholder(\r\n placeholderSrc,\r\n this.slide.container\r\n );\r\n } else {\r\n const placeholderEl = this.placeholder.element;\r\n // Add placeholder to DOM if it was already created\r\n if (placeholderEl && !placeholderEl.parentElement) {\r\n this.slide.container.prepend(placeholderEl);\r\n }\r\n }\r\n }\r\n\r\n if (this.element && !reload) {\r\n return;\r\n }\r\n\r\n if (this.instance.dispatch('contentLoad', { content: this, isLazy }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (this.isImageContent()) {\r\n this.element = createElement('pswp__img', 'img');\r\n // Start loading only after width is defined, as sizes might depend on it.\r\n // Due to Safari feature, we must define sizes before srcset.\r\n if (this.displayedImageWidth) {\r\n this.loadImage(isLazy);\r\n }\r\n } else {\r\n this.element = createElement('pswp__content', 'div');\r\n this.element.innerHTML = this.data.html || '';\r\n }\r\n\r\n if (reload && this.slide) {\r\n this.slide.updateContentSize(true);\r\n }\r\n }\r\n\r\n /**\r\n * Preload image\r\n *\r\n * @param {boolean} isLazy\r\n */\r\n loadImage(isLazy) {\r\n if (!this.isImageContent()\r\n || !this.element\r\n || this.instance.dispatch('contentLoadImage', { content: this, isLazy }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n const imageElement = /** @type HTMLImageElement */ (this.element);\r\n\r\n this.updateSrcsetSizes();\r\n\r\n if (this.data.srcset) {\r\n imageElement.srcset = this.data.srcset;\r\n }\r\n\r\n imageElement.src = this.data.src ?? '';\r\n imageElement.alt = this.data.alt ?? '';\r\n\r\n this.state = LOAD_STATE.LOADING;\r\n\r\n if (imageElement.complete) {\r\n this.onLoaded();\r\n } else {\r\n imageElement.onload = () => {\r\n this.onLoaded();\r\n };\r\n\r\n imageElement.onerror = () => {\r\n this.onError();\r\n };\r\n }\r\n }\r\n\r\n /**\r\n * Assign slide to content\r\n *\r\n * @param {Slide} slide\r\n */\r\n setSlide(slide) {\r\n this.slide = slide;\r\n this.hasSlide = true;\r\n this.instance = slide.pswp;\r\n\r\n // todo: do we need to unset slide?\r\n }\r\n\r\n /**\r\n * Content load success handler\r\n */\r\n onLoaded() {\r\n this.state = LOAD_STATE.LOADED;\r\n\r\n if (this.slide && this.element) {\r\n this.instance.dispatch('loadComplete', { slide: this.slide, content: this });\r\n\r\n // if content is reloaded\r\n if (this.slide.isActive\r\n && this.slide.heavyAppended\r\n && !this.element.parentNode) {\r\n this.append();\r\n this.slide.updateContentSize(true);\r\n }\r\n\r\n if (this.state === LOAD_STATE.LOADED || this.state === LOAD_STATE.ERROR) {\r\n this.removePlaceholder();\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * Content load error handler\r\n */\r\n onError() {\r\n this.state = LOAD_STATE.ERROR;\r\n\r\n if (this.slide) {\r\n this.displayError();\r\n this.instance.dispatch('loadComplete', { slide: this.slide, isError: true, content: this });\r\n this.instance.dispatch('loadError', { slide: this.slide, content: this });\r\n }\r\n }\r\n\r\n /**\r\n * @returns {Boolean} If the content is currently loading\r\n */\r\n isLoading() {\r\n return this.instance.applyFilters(\r\n 'isContentLoading',\r\n this.state === LOAD_STATE.LOADING,\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * @returns {Boolean} If the content is in error state\r\n */\r\n isError() {\r\n return this.state === LOAD_STATE.ERROR;\r\n }\r\n\r\n /**\r\n * @returns {boolean} If the content is image\r\n */\r\n isImageContent() {\r\n return this.type === 'image';\r\n }\r\n\r\n /**\r\n * Update content size\r\n *\r\n * @param {Number} width\r\n * @param {Number} height\r\n */\r\n setDisplayedSize(width, height) {\r\n if (!this.element) {\r\n return;\r\n }\r\n\r\n if (this.placeholder) {\r\n this.placeholder.setDisplayedSize(width, height);\r\n }\r\n\r\n if (this.instance.dispatch(\r\n 'contentResize',\r\n { content: this, width, height }).defaultPrevented\r\n ) {\r\n return;\r\n }\r\n\r\n setWidthHeight(this.element, width, height);\r\n\r\n if (this.isImageContent() && !this.isError()) {\r\n const isInitialSizeUpdate = (!this.displayedImageWidth && width);\r\n\r\n this.displayedImageWidth = width;\r\n this.displayedImageHeight = height;\r\n\r\n if (isInitialSizeUpdate) {\r\n this.loadImage(false);\r\n } else {\r\n this.updateSrcsetSizes();\r\n }\r\n\r\n if (this.slide) {\r\n this.instance.dispatch(\r\n 'imageSizeChange',\r\n { slide: this.slide, width, height, content: this }\r\n );\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * @returns {boolean} If the content can be zoomed\r\n */\r\n isZoomable() {\r\n return this.instance.applyFilters(\r\n 'isContentZoomable',\r\n this.isImageContent() && (this.state !== LOAD_STATE.ERROR),\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * Update image srcset sizes attribute based on width and height\r\n */\r\n updateSrcsetSizes() {\r\n // Handle srcset sizes attribute.\r\n //\r\n // Never lower quality, if it was increased previously.\r\n // Chrome does this automatically, Firefox and Safari do not,\r\n // so we store largest used size in dataset.\r\n if (!this.isImageContent() || !this.element || !this.data.srcset) {\r\n return;\r\n }\r\n\r\n const image = /** @type HTMLImageElement */ (this.element);\r\n const sizesWidth = this.instance.applyFilters(\r\n 'srcsetSizesWidth',\r\n this.displayedImageWidth,\r\n this\r\n );\r\n\r\n if (\r\n !image.dataset.largestUsedSize\r\n || sizesWidth > parseInt(image.dataset.largestUsedSize, 10)\r\n ) {\r\n image.sizes = sizesWidth + 'px';\r\n image.dataset.largestUsedSize = String(sizesWidth);\r\n }\r\n }\r\n\r\n /**\r\n * @returns {boolean} If content should use a placeholder (from msrc by default)\r\n */\r\n usePlaceholder() {\r\n return this.instance.applyFilters(\r\n 'useContentPlaceholder',\r\n this.isImageContent(),\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * Preload content with lazy-loading param\r\n */\r\n lazyLoad() {\r\n if (this.instance.dispatch('contentLazyLoad', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n this.load(true);\r\n }\r\n\r\n /**\r\n * @returns {boolean} If placeholder should be kept after content is loaded\r\n */\r\n keepPlaceholder() {\r\n return this.instance.applyFilters(\r\n 'isKeepingPlaceholder',\r\n this.isLoading(),\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * Destroy the content\r\n */\r\n destroy() {\r\n this.hasSlide = false;\r\n this.slide = undefined;\r\n\r\n if (this.instance.dispatch('contentDestroy', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n this.remove();\r\n\r\n if (this.placeholder) {\r\n this.placeholder.destroy();\r\n this.placeholder = undefined;\r\n }\r\n\r\n if (this.isImageContent() && this.element) {\r\n this.element.onload = null;\r\n this.element.onerror = null;\r\n this.element = undefined;\r\n }\r\n }\r\n\r\n /**\r\n * Display error message\r\n */\r\n displayError() {\r\n if (this.slide) {\r\n let errorMsgEl = createElement('pswp__error-msg', 'div');\r\n errorMsgEl.innerText = this.instance.options?.errorMsg ?? '';\r\n errorMsgEl = /** @type {HTMLDivElement} */ (this.instance.applyFilters(\r\n 'contentErrorElement',\r\n errorMsgEl,\r\n this\r\n ));\r\n this.element = createElement('pswp__content pswp__error-msg-container', 'div');\r\n this.element.appendChild(errorMsgEl);\r\n this.slide.container.innerText = '';\r\n this.slide.container.appendChild(this.element);\r\n this.slide.updateContentSize(true);\r\n this.removePlaceholder();\r\n }\r\n }\r\n\r\n /**\r\n * Append the content\r\n */\r\n append() {\r\n if (this.isAttached || !this.element) {\r\n return;\r\n }\r\n\r\n this.isAttached = true;\r\n\r\n if (this.state === LOAD_STATE.ERROR) {\r\n this.displayError();\r\n return;\r\n }\r\n\r\n if (this.instance.dispatch('contentAppend', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n const supportsDecode = ('decode' in this.element);\r\n\r\n if (this.isImageContent()) {\r\n // Use decode() on nearby slides\r\n //\r\n // Nearby slide images are in DOM and not hidden via display:none.\r\n // However, they are placed offscreen (to the left and right side).\r\n //\r\n // Some browsers do not composite the image until it's actually visible,\r\n // using decode() helps.\r\n //\r\n // You might ask \"why dont you just decode() and then append all images\",\r\n // that's because I want to show image before it's fully loaded,\r\n // as browser can render parts of image while it is loading.\r\n // We do not do this in Safari due to partial loading bug.\r\n if (supportsDecode && this.slide && (!this.slide.isActive || isSafari())) {\r\n this.isDecoding = true;\r\n // purposefully using finally instead of then,\r\n // as if srcset sizes changes dynamically - it may cause decode error\r\n /** @type {HTMLImageElement} */\r\n (this.element).decode().catch(() => {}).finally(() => {\r\n this.isDecoding = false;\r\n this.appendImage();\r\n });\r\n } else {\r\n this.appendImage();\r\n }\r\n } else if (this.slide && !this.element.parentNode) {\r\n this.slide.container.appendChild(this.element);\r\n }\r\n }\r\n\r\n /**\r\n * Activate the slide,\r\n * active slide is generally the current one,\r\n * meaning the user can see it.\r\n */\r\n activate() {\r\n if (this.instance.dispatch('contentActivate', { content: this }).defaultPrevented\r\n || !this.slide) {\r\n return;\r\n }\r\n\r\n if (this.isImageContent() && this.isDecoding && !isSafari()) {\r\n // add image to slide when it becomes active,\r\n // even if it's not finished decoding\r\n this.appendImage();\r\n } else if (this.isError()) {\r\n this.load(false, true); // try to reload\r\n }\r\n\r\n if (this.slide.holderElement) {\r\n this.slide.holderElement.setAttribute('aria-hidden', 'false');\r\n }\r\n }\r\n\r\n /**\r\n * Deactivate the content\r\n */\r\n deactivate() {\r\n this.instance.dispatch('contentDeactivate', { content: this });\r\n if (this.slide && this.slide.holderElement) {\r\n this.slide.holderElement.setAttribute('aria-hidden', 'true');\r\n }\r\n }\r\n\r\n\r\n /**\r\n * Remove the content from DOM\r\n */\r\n remove() {\r\n this.isAttached = false;\r\n\r\n if (this.instance.dispatch('contentRemove', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (this.element && this.element.parentNode) {\r\n this.element.remove();\r\n }\r\n\r\n if (this.placeholder && this.placeholder.element) {\r\n this.placeholder.element.remove();\r\n }\r\n }\r\n\r\n /**\r\n * Append the image content to slide container\r\n */\r\n appendImage() {\r\n if (!this.isAttached) {\r\n return;\r\n }\r\n\r\n if (this.instance.dispatch('contentAppendImage', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n // ensure that element exists and is not already appended\r\n if (this.slide && this.element && !this.element.parentNode) {\r\n this.slide.container.appendChild(this.element);\r\n }\r\n\r\n if (this.state === LOAD_STATE.LOADED || this.state === LOAD_STATE.ERROR) {\r\n this.removePlaceholder();\r\n }\r\n }\r\n}\r\n\r\nexport default Content;\r\n","import { getViewportSize, getPanAreaSize } from '../util/viewport-size.js';\r\nimport ZoomLevel from './zoom-level.js';\r\n\r\n/** @typedef {import('./content.js').default} Content */\r\n/** @typedef {import('./slide.js').default} Slide */\r\n/** @typedef {import('./slide.js').SlideData} SlideData */\r\n/** @typedef {import('../core/base.js').default} PhotoSwipeBase */\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n\r\nconst MIN_SLIDES_TO_CACHE = 5;\r\n\r\n/**\r\n * Lazy-load an image\r\n * This function is used both by Lightbox and PhotoSwipe core,\r\n * thus it can be called before dialog is opened.\r\n *\r\n * @param {SlideData} itemData Data about the slide\r\n * @param {PhotoSwipeBase} instance PhotoSwipe or PhotoSwipeLightbox instance\r\n * @param {number} index\r\n * @returns {Content} Image that is being decoded or false.\r\n */\r\nexport function lazyLoadData(itemData, instance, index) {\r\n const content = instance.createContentFromData(itemData, index);\r\n /** @type {ZoomLevel | undefined} */\r\n let zoomLevel;\r\n\r\n const { options } = instance;\r\n\r\n // We need to know dimensions of the image to preload it,\r\n // as it might use srcset, and we need to define sizes\r\n if (options) {\r\n zoomLevel = new ZoomLevel(options, itemData, -1);\r\n\r\n let viewportSize;\r\n if (instance.pswp) {\r\n viewportSize = instance.pswp.viewportSize;\r\n } else {\r\n viewportSize = getViewportSize(options, instance);\r\n }\r\n\r\n const panAreaSize = getPanAreaSize(options, viewportSize, itemData, index);\r\n zoomLevel.update(content.width, content.height, panAreaSize);\r\n }\r\n\r\n content.lazyLoad();\r\n\r\n if (zoomLevel) {\r\n content.setDisplayedSize(\r\n Math.ceil(content.width * zoomLevel.initial),\r\n Math.ceil(content.height * zoomLevel.initial)\r\n );\r\n }\r\n\r\n return content;\r\n}\r\n\r\n\r\n/**\r\n * Lazy-loads specific slide.\r\n * This function is used both by Lightbox and PhotoSwipe core,\r\n * thus it can be called before dialog is opened.\r\n *\r\n * By default, it loads image based on viewport size and initial zoom level.\r\n *\r\n * @param {number} index Slide index\r\n * @param {PhotoSwipeBase} instance PhotoSwipe or PhotoSwipeLightbox eventable instance\r\n * @returns {Content | undefined}\r\n */\r\nexport function lazyLoadSlide(index, instance) {\r\n const itemData = instance.getItemData(index);\r\n\r\n if (instance.dispatch('lazyLoadSlide', { index, itemData }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n return lazyLoadData(itemData, instance, index);\r\n}\r\n\r\nclass ContentLoader {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n // Total amount of cached images\r\n this.limit = Math.max(\r\n pswp.options.preload[0] + pswp.options.preload[1] + 1,\r\n MIN_SLIDES_TO_CACHE\r\n );\r\n /** @type {Content[]} */\r\n this._cachedItems = [];\r\n }\r\n\r\n /**\r\n * Lazy load nearby slides based on `preload` option.\r\n *\r\n * @param {number} [diff] Difference between slide indexes that was changed recently, or 0.\r\n */\r\n updateLazy(diff) {\r\n const { pswp } = this;\r\n\r\n if (pswp.dispatch('lazyLoad').defaultPrevented) {\r\n return;\r\n }\r\n\r\n const { preload } = pswp.options;\r\n const isForward = diff === undefined ? true : (diff >= 0);\r\n let i;\r\n\r\n // preload[1] - num items to preload in forward direction\r\n for (i = 0; i <= preload[1]; i++) {\r\n this.loadSlideByIndex(pswp.currIndex + (isForward ? i : (-i)));\r\n }\r\n\r\n // preload[0] - num items to preload in backward direction\r\n for (i = 1; i <= preload[0]; i++) {\r\n this.loadSlideByIndex(pswp.currIndex + (isForward ? (-i) : i));\r\n }\r\n }\r\n\r\n /**\r\n * @param {number} initialIndex\r\n */\r\n loadSlideByIndex(initialIndex) {\r\n const index = this.pswp.getLoopedIndex(initialIndex);\r\n // try to get cached content\r\n let content = this.getContentByIndex(index);\r\n if (!content) {\r\n // no cached content, so try to load from scratch:\r\n content = lazyLoadSlide(index, this.pswp);\r\n // if content can be loaded, add it to cache:\r\n if (content) {\r\n this.addToCache(content);\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * @param {Slide} slide\r\n * @returns {Content}\r\n */\r\n getContentBySlide(slide) {\r\n let content = this.getContentByIndex(slide.index);\r\n if (!content) {\r\n // create content if not found in cache\r\n content = this.pswp.createContentFromData(slide.data, slide.index);\r\n this.addToCache(content);\r\n }\r\n\r\n // assign slide to content\r\n content.setSlide(slide);\r\n\r\n return content;\r\n }\r\n\r\n /**\r\n * @param {Content} content\r\n */\r\n addToCache(content) {\r\n // move to the end of array\r\n this.removeByIndex(content.index);\r\n this._cachedItems.push(content);\r\n\r\n if (this._cachedItems.length > this.limit) {\r\n // Destroy the first content that's not attached\r\n const indexToRemove = this._cachedItems.findIndex((item) => {\r\n return !item.isAttached && !item.hasSlide;\r\n });\r\n if (indexToRemove !== -1) {\r\n const removedItem = this._cachedItems.splice(indexToRemove, 1)[0];\r\n removedItem.destroy();\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * Removes an image from cache, does not destroy() it, just removes.\r\n *\r\n * @param {number} index\r\n */\r\n removeByIndex(index) {\r\n const indexToRemove = this._cachedItems.findIndex(item => item.index === index);\r\n if (indexToRemove !== -1) {\r\n this._cachedItems.splice(indexToRemove, 1);\r\n }\r\n }\r\n\r\n /**\r\n * @param {number} index\r\n * @returns {Content | undefined}\r\n */\r\n getContentByIndex(index) {\r\n return this._cachedItems.find(content => content.index === index);\r\n }\r\n\r\n destroy() {\r\n this._cachedItems.forEach(content => content.destroy());\r\n this._cachedItems = [];\r\n }\r\n}\r\n\r\nexport default ContentLoader;\r\n","import Eventable from './eventable.js';\r\nimport { getElementsFromOption } from '../util/util.js';\r\nimport Content from '../slide/content.js';\r\nimport { lazyLoadData } from '../slide/loader.js';\r\n\r\n/** @typedef {import(\"../photoswipe.js\").default} PhotoSwipe */\r\n/** @typedef {import(\"../slide/slide.js\").SlideData} SlideData */\r\n\r\n/**\r\n * PhotoSwipe base class that can retrieve data about every slide.\r\n * Shared by PhotoSwipe Core and PhotoSwipe Lightbox\r\n */\r\nclass PhotoSwipeBase extends Eventable {\r\n /**\r\n * Get total number of slides\r\n *\r\n * @returns {number}\r\n */\r\n getNumItems() {\r\n let numItems = 0;\r\n const dataSource = this.options?.dataSource;\r\n\r\n if (dataSource && 'length' in dataSource) {\r\n // may be an array or just object with length property\r\n numItems = dataSource.length;\r\n } else if (dataSource && 'gallery' in dataSource) {\r\n // query DOM elements\r\n if (!dataSource.items) {\r\n dataSource.items = this._getGalleryDOMElements(dataSource.gallery);\r\n }\r\n\r\n if (dataSource.items) {\r\n numItems = dataSource.items.length;\r\n }\r\n }\r\n\r\n // legacy event, before filters were introduced\r\n const event = this.dispatch('numItems', {\r\n dataSource,\r\n numItems\r\n });\r\n return this.applyFilters('numItems', event.numItems, dataSource);\r\n }\r\n\r\n /**\r\n * @param {SlideData} slideData\r\n * @param {number} index\r\n * @returns {Content}\r\n */\r\n createContentFromData(slideData, index) {\r\n return new Content(slideData, this, index);\r\n }\r\n\r\n /**\r\n * Get item data by index.\r\n *\r\n * \"item data\" should contain normalized information that PhotoSwipe needs to generate a slide.\r\n * For example, it may contain properties like\r\n * `src`, `srcset`, `w`, `h`, which will be used to generate a slide with image.\r\n *\r\n * @param {number} index\r\n * @returns {SlideData}\r\n */\r\n getItemData(index) {\r\n const dataSource = this.options?.dataSource;\r\n /** @type {SlideData | HTMLElement} */\r\n let dataSourceItem = {};\r\n if (Array.isArray(dataSource)) {\r\n // Datasource is an array of elements\r\n dataSourceItem = dataSource[index];\r\n } else if (dataSource && 'gallery' in dataSource) {\r\n // dataSource has gallery property,\r\n // thus it was created by Lightbox, based on\r\n // gallery and children options\r\n\r\n // query DOM elements\r\n if (!dataSource.items) {\r\n dataSource.items = this._getGalleryDOMElements(dataSource.gallery);\r\n }\r\n\r\n dataSourceItem = dataSource.items[index];\r\n }\r\n\r\n let itemData = dataSourceItem;\r\n\r\n if (itemData instanceof Element) {\r\n itemData = this._domElementToItemData(itemData);\r\n }\r\n\r\n // Dispatching the itemData event,\r\n // it's a legacy verion before filters were introduced\r\n const event = this.dispatch('itemData', {\r\n itemData: itemData || {},\r\n index\r\n });\r\n\r\n return this.applyFilters('itemData', event.itemData, index);\r\n }\r\n\r\n /**\r\n * Get array of gallery DOM elements,\r\n * based on childSelector and gallery element.\r\n *\r\n * @param {HTMLElement} galleryElement\r\n * @returns {HTMLElement[]}\r\n */\r\n _getGalleryDOMElements(galleryElement) {\r\n if (this.options?.children || this.options?.childSelector) {\r\n return getElementsFromOption(\r\n this.options.children,\r\n this.options.childSelector,\r\n galleryElement\r\n ) || [];\r\n }\r\n\r\n return [galleryElement];\r\n }\r\n\r\n /**\r\n * Converts DOM element to item data object.\r\n *\r\n * @param {HTMLElement} element DOM element\r\n * @returns {SlideData}\r\n */\r\n _domElementToItemData(element) {\r\n /** @type {SlideData} */\r\n const itemData = {\r\n element\r\n };\r\n\r\n const linkEl = /** @type {HTMLAnchorElement} */ (\r\n element.tagName === 'A'\r\n ? element\r\n : element.querySelector('a')\r\n );\r\n\r\n if (linkEl) {\r\n // src comes from data-pswp-src attribute,\r\n // if it's empty link href is used\r\n itemData.src = linkEl.dataset.pswpSrc || linkEl.href;\r\n\r\n if (linkEl.dataset.pswpSrcset) {\r\n itemData.srcset = linkEl.dataset.pswpSrcset;\r\n }\r\n\r\n itemData.width = linkEl.dataset.pswpWidth ? parseInt(linkEl.dataset.pswpWidth, 10) : 0;\r\n itemData.height = linkEl.dataset.pswpHeight ? parseInt(linkEl.dataset.pswpHeight, 10) : 0;\r\n\r\n // support legacy w & h properties\r\n itemData.w = itemData.width;\r\n itemData.h = itemData.height;\r\n\r\n if (linkEl.dataset.pswpType) {\r\n itemData.type = linkEl.dataset.pswpType;\r\n }\r\n\r\n const thumbnailEl = element.querySelector('img');\r\n\r\n if (thumbnailEl) {\r\n // msrc is URL to placeholder image that's displayed before large image is loaded\r\n // by default it's displayed only for the first slide\r\n itemData.msrc = thumbnailEl.currentSrc || thumbnailEl.src;\r\n itemData.alt = thumbnailEl.getAttribute('alt') ?? '';\r\n }\r\n\r\n if (linkEl.dataset.pswpCropped || linkEl.dataset.cropped) {\r\n itemData.thumbCropped = true;\r\n }\r\n }\r\n\r\n return this.applyFilters('domItemData', itemData, element, linkEl);\r\n }\r\n\r\n /**\r\n * Lazy-load by slide data\r\n *\r\n * @param {SlideData} itemData Data about the slide\r\n * @param {number} index\r\n * @returns {Content} Image that is being decoded or false.\r\n */\r\n lazyLoadData(itemData, index) {\r\n return lazyLoadData(itemData, this, index);\r\n }\r\n}\r\n\r\nexport default PhotoSwipeBase;\r\n","import {\r\n setTransform,\r\n equalizePoints,\r\n decodeImage,\r\n toTransformString\r\n} from './util/util.js';\r\n\r\n/** @typedef {import('./photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('./slide/get-thumb-bounds.js').Bounds} Bounds */\r\n/** @typedef {import('./util/animations.js').AnimationProps} AnimationProps */\r\n\r\n// some browsers do not paint\r\n// elements which opacity is set to 0,\r\n// since we need to pre-render elements for the animation -\r\n// we set it to the minimum amount\r\nconst MIN_OPACITY = 0.003;\r\n\r\n/**\r\n * Manages opening and closing transitions of the PhotoSwipe.\r\n *\r\n * It can perform zoom, fade or no transition.\r\n */\r\nclass Opener {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n this.isClosed = true;\r\n this.isOpen = false;\r\n this.isClosing = false;\r\n this.isOpening = false;\r\n /**\r\n * @private\r\n * @type {number | false | undefined}\r\n */\r\n this._duration = undefined;\r\n /** @private */\r\n this._useAnimation = false;\r\n /** @private */\r\n this._croppedZoom = false;\r\n /** @private */\r\n this._animateRootOpacity = false;\r\n /** @private */\r\n this._animateBgOpacity = false;\r\n /**\r\n * @private\r\n * @type { HTMLDivElement | HTMLImageElement | null | undefined }\r\n */\r\n this._placeholder = undefined;\r\n /**\r\n * @private\r\n * @type { HTMLDivElement | undefined }\r\n */\r\n this._opacityElement = undefined;\r\n /**\r\n * @private\r\n * @type { HTMLDivElement | undefined }\r\n */\r\n this._cropContainer1 = undefined;\r\n /**\r\n * @private\r\n * @type { HTMLElement | null | undefined }\r\n */\r\n this._cropContainer2 = undefined;\r\n\r\n /**\r\n * @private\r\n * @type {Bounds | undefined}\r\n */\r\n this._thumbBounds = undefined;\r\n\r\n\r\n this._prepareOpen = this._prepareOpen.bind(this);\r\n\r\n // Override initial zoom and pan position\r\n pswp.on('firstZoomPan', this._prepareOpen);\r\n }\r\n\r\n open() {\r\n this._prepareOpen();\r\n this._start();\r\n }\r\n\r\n close() {\r\n if (this.isClosed || this.isClosing || this.isOpening) {\r\n // if we close during opening animation\r\n // for now do nothing,\r\n // browsers aren't good at changing the direction of the CSS transition\r\n return;\r\n }\r\n\r\n const slide = this.pswp.currSlide;\r\n\r\n this.isOpen = false;\r\n this.isOpening = false;\r\n this.isClosing = true;\r\n this._duration = this.pswp.options.hideAnimationDuration;\r\n\r\n if (slide && slide.currZoomLevel * slide.width >= this.pswp.options.maxWidthToAnimate) {\r\n this._duration = 0;\r\n }\r\n\r\n this._applyStartProps();\r\n setTimeout(() => {\r\n this._start();\r\n }, this._croppedZoom ? 30 : 0);\r\n }\r\n\r\n /** @private */\r\n _prepareOpen() {\r\n this.pswp.off('firstZoomPan', this._prepareOpen);\r\n if (!this.isOpening) {\r\n const slide = this.pswp.currSlide;\r\n this.isOpening = true;\r\n this.isClosing = false;\r\n this._duration = this.pswp.options.showAnimationDuration;\r\n if (slide && slide.zoomLevels.initial * slide.width >= this.pswp.options.maxWidthToAnimate) {\r\n this._duration = 0;\r\n }\r\n this._applyStartProps();\r\n }\r\n }\r\n\r\n /** @private */\r\n _applyStartProps() {\r\n const { pswp } = this;\r\n const slide = this.pswp.currSlide;\r\n const { options } = pswp;\r\n\r\n if (options.showHideAnimationType === 'fade') {\r\n options.showHideOpacity = true;\r\n this._thumbBounds = undefined;\r\n } else if (options.showHideAnimationType === 'none') {\r\n options.showHideOpacity = false;\r\n this._duration = 0;\r\n this._thumbBounds = undefined;\r\n } else if (this.isOpening && pswp._initialThumbBounds) {\r\n // Use initial bounds if defined\r\n this._thumbBounds = pswp._initialThumbBounds;\r\n } else {\r\n this._thumbBounds = this.pswp.getThumbBounds();\r\n }\r\n\r\n this._placeholder = slide?.getPlaceholderElement();\r\n\r\n pswp.animations.stopAll();\r\n\r\n // Discard animations when duration is less than 50ms\r\n this._useAnimation = Boolean(this._duration && this._duration > 50);\r\n this._animateZoom = Boolean(this._thumbBounds)\r\n && slide?.content.usePlaceholder()\r\n && (!this.isClosing || !pswp.mainScroll.isShifted());\r\n if (!this._animateZoom) {\r\n this._animateRootOpacity = true;\r\n\r\n if (this.isOpening && slide) {\r\n slide.zoomAndPanToInitial();\r\n slide.applyCurrentZoomPan();\r\n }\r\n } else {\r\n this._animateRootOpacity = options.showHideOpacity ?? false;\r\n }\r\n this._animateBgOpacity = !this._animateRootOpacity && this.pswp.options.bgOpacity > MIN_OPACITY;\r\n this._opacityElement = this._animateRootOpacity ? pswp.element : pswp.bg;\r\n\r\n if (!this._useAnimation) {\r\n this._duration = 0;\r\n this._animateZoom = false;\r\n this._animateBgOpacity = false;\r\n this._animateRootOpacity = true;\r\n if (this.isOpening) {\r\n if (pswp.element) {\r\n pswp.element.style.opacity = String(MIN_OPACITY);\r\n }\r\n pswp.applyBgOpacity(1);\r\n }\r\n return;\r\n }\r\n\r\n if (this._animateZoom && this._thumbBounds && this._thumbBounds.innerRect) {\r\n // Properties are used when animation from cropped thumbnail\r\n this._croppedZoom = true;\r\n this._cropContainer1 = this.pswp.container;\r\n this._cropContainer2 = this.pswp.currSlide?.holderElement;\r\n\r\n if (pswp.container) {\r\n pswp.container.style.overflow = 'hidden';\r\n pswp.container.style.width = pswp.viewportSize.x + 'px';\r\n }\r\n } else {\r\n this._croppedZoom = false;\r\n }\r\n\r\n if (this.isOpening) {\r\n // Apply styles before opening transition\r\n if (this._animateRootOpacity) {\r\n if (pswp.element) {\r\n pswp.element.style.opacity = String(MIN_OPACITY);\r\n }\r\n pswp.applyBgOpacity(1);\r\n } else {\r\n if (this._animateBgOpacity && pswp.bg) {\r\n pswp.bg.style.opacity = String(MIN_OPACITY);\r\n }\r\n if (pswp.element) {\r\n pswp.element.style.opacity = '1';\r\n }\r\n }\r\n\r\n if (this._animateZoom) {\r\n this._setClosedStateZoomPan();\r\n if (this._placeholder) {\r\n // tell browser that we plan to animate the placeholder\r\n this._placeholder.style.willChange = 'transform';\r\n\r\n // hide placeholder to allow hiding of\r\n // elements that overlap it (such as icons over the thumbnail)\r\n this._placeholder.style.opacity = String(MIN_OPACITY);\r\n }\r\n }\r\n } else if (this.isClosing) {\r\n // hide nearby slides to make sure that\r\n // they are not painted during the transition\r\n if (pswp.mainScroll.itemHolders[0]) {\r\n pswp.mainScroll.itemHolders[0].el.style.display = 'none';\r\n }\r\n if (pswp.mainScroll.itemHolders[2]) {\r\n pswp.mainScroll.itemHolders[2].el.style.display = 'none';\r\n }\r\n\r\n if (this._croppedZoom) {\r\n if (pswp.mainScroll.x !== 0) {\r\n // shift the main scroller to zero position\r\n pswp.mainScroll.resetPosition();\r\n pswp.mainScroll.resize();\r\n }\r\n }\r\n }\r\n }\r\n\r\n /** @private */\r\n _start() {\r\n if (this.isOpening\r\n && this._useAnimation\r\n && this._placeholder\r\n && this._placeholder.tagName === 'IMG') {\r\n // To ensure smooth animation\r\n // we wait till the current slide image placeholder is decoded,\r\n // but no longer than 250ms,\r\n // and no shorter than 50ms\r\n // (just using requestanimationframe is not enough in Firefox,\r\n // for some reason)\r\n new Promise((resolve) => {\r\n let decoded = false;\r\n let isDelaying = true;\r\n decodeImage(/** @type {HTMLImageElement} */ (this._placeholder)).finally(() => {\r\n decoded = true;\r\n if (!isDelaying) {\r\n resolve(true);\r\n }\r\n });\r\n setTimeout(() => {\r\n isDelaying = false;\r\n if (decoded) {\r\n resolve(true);\r\n }\r\n }, 50);\r\n setTimeout(resolve, 250);\r\n }).finally(() => this._initiate());\r\n } else {\r\n this._initiate();\r\n }\r\n }\r\n\r\n /** @private */\r\n _initiate() {\r\n this.pswp.element?.style.setProperty('--pswp-transition-duration', this._duration + 'ms');\r\n\r\n this.pswp.dispatch(\r\n this.isOpening ? 'openingAnimationStart' : 'closingAnimationStart'\r\n );\r\n\r\n // legacy event\r\n this.pswp.dispatch(\r\n /** @type {'initialZoomIn' | 'initialZoomOut'} */\r\n ('initialZoom' + (this.isOpening ? 'In' : 'Out'))\r\n );\r\n\r\n this.pswp.element?.classList.toggle('pswp--ui-visible', this.isOpening);\r\n\r\n if (this.isOpening) {\r\n if (this._placeholder) {\r\n // unhide the placeholder\r\n this._placeholder.style.opacity = '1';\r\n }\r\n this._animateToOpenState();\r\n } else if (this.isClosing) {\r\n this._animateToClosedState();\r\n }\r\n\r\n if (!this._useAnimation) {\r\n this._onAnimationComplete();\r\n }\r\n }\r\n\r\n /** @private */\r\n _onAnimationComplete() {\r\n const { pswp } = this;\r\n this.isOpen = this.isOpening;\r\n this.isClosed = this.isClosing;\r\n this.isOpening = false;\r\n this.isClosing = false;\r\n\r\n pswp.dispatch(\r\n this.isOpen ? 'openingAnimationEnd' : 'closingAnimationEnd'\r\n );\r\n\r\n // legacy event\r\n pswp.dispatch(\r\n /** @type {'initialZoomInEnd' | 'initialZoomOutEnd'} */\r\n ('initialZoom' + (this.isOpen ? 'InEnd' : 'OutEnd'))\r\n );\r\n\r\n if (this.isClosed) {\r\n pswp.destroy();\r\n } else if (this.isOpen) {\r\n if (this._animateZoom && pswp.container) {\r\n pswp.container.style.overflow = 'visible';\r\n pswp.container.style.width = '100%';\r\n }\r\n pswp.currSlide?.applyCurrentZoomPan();\r\n }\r\n }\r\n\r\n /** @private */\r\n _animateToOpenState() {\r\n const { pswp } = this;\r\n if (this._animateZoom) {\r\n if (this._croppedZoom && this._cropContainer1 && this._cropContainer2) {\r\n this._animateTo(this._cropContainer1, 'transform', 'translate3d(0,0,0)');\r\n this._animateTo(this._cropContainer2, 'transform', 'none');\r\n }\r\n\r\n if (pswp.currSlide) {\r\n pswp.currSlide.zoomAndPanToInitial();\r\n this._animateTo(\r\n pswp.currSlide.container,\r\n 'transform',\r\n pswp.currSlide.getCurrentTransform()\r\n );\r\n }\r\n }\r\n\r\n if (this._animateBgOpacity && pswp.bg) {\r\n this._animateTo(pswp.bg, 'opacity', String(pswp.options.bgOpacity));\r\n }\r\n\r\n if (this._animateRootOpacity && pswp.element) {\r\n this._animateTo(pswp.element, 'opacity', '1');\r\n }\r\n }\r\n\r\n /** @private */\r\n _animateToClosedState() {\r\n const { pswp } = this;\r\n\r\n if (this._animateZoom) {\r\n this._setClosedStateZoomPan(true);\r\n }\r\n\r\n // do not animate opacity if it's already at 0\r\n if (this._animateBgOpacity && pswp.bgOpacity > 0.01 && pswp.bg) {\r\n this._animateTo(pswp.bg, 'opacity', '0');\r\n }\r\n\r\n if (this._animateRootOpacity && pswp.element) {\r\n this._animateTo(pswp.element, 'opacity', '0');\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {boolean} [animate]\r\n */\r\n _setClosedStateZoomPan(animate) {\r\n if (!this._thumbBounds) return;\r\n\r\n const { pswp } = this;\r\n const { innerRect } = this._thumbBounds;\r\n const { currSlide, viewportSize } = pswp;\r\n\r\n if (this._croppedZoom && innerRect && this._cropContainer1 && this._cropContainer2) {\r\n const containerOnePanX = -viewportSize.x + (this._thumbBounds.x - innerRect.x) + innerRect.w;\r\n const containerOnePanY = -viewportSize.y + (this._thumbBounds.y - innerRect.y) + innerRect.h;\r\n const containerTwoPanX = viewportSize.x - innerRect.w;\r\n const containerTwoPanY = viewportSize.y - innerRect.h;\r\n\r\n\r\n if (animate) {\r\n this._animateTo(\r\n this._cropContainer1,\r\n 'transform',\r\n toTransformString(containerOnePanX, containerOnePanY)\r\n );\r\n\r\n this._animateTo(\r\n this._cropContainer2,\r\n 'transform',\r\n toTransformString(containerTwoPanX, containerTwoPanY)\r\n );\r\n } else {\r\n setTransform(this._cropContainer1, containerOnePanX, containerOnePanY);\r\n setTransform(this._cropContainer2, containerTwoPanX, containerTwoPanY);\r\n }\r\n }\r\n\r\n if (currSlide) {\r\n equalizePoints(currSlide.pan, innerRect || this._thumbBounds);\r\n currSlide.currZoomLevel = this._thumbBounds.w / currSlide.width;\r\n if (animate) {\r\n this._animateTo(currSlide.container, 'transform', currSlide.getCurrentTransform());\r\n } else {\r\n currSlide.applyCurrentZoomPan();\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {HTMLElement} target\r\n * @param {'transform' | 'opacity'} prop\r\n * @param {string} propValue\r\n */\r\n _animateTo(target, prop, propValue) {\r\n if (!this._duration) {\r\n target.style[prop] = propValue;\r\n return;\r\n }\r\n\r\n const { animations } = this.pswp;\r\n /** @type {AnimationProps} */\r\n const animProps = {\r\n duration: this._duration,\r\n easing: this.pswp.options.easing,\r\n onComplete: () => {\r\n if (!animations.activeAnimations.length) {\r\n this._onAnimationComplete();\r\n }\r\n },\r\n target,\r\n };\r\n animProps[prop] = propValue;\r\n animations.startTransition(animProps);\r\n }\r\n}\r\n\r\nexport default Opener;\r\n","import {\r\n createElement,\r\n equalizePoints,\r\n pointsEqual,\r\n clamp,\r\n} from './util/util.js';\r\n\r\nimport DOMEvents from './util/dom-events.js';\r\nimport Slide from './slide/slide.js';\r\nimport Gestures from './gestures/gestures.js';\r\nimport MainScroll from './main-scroll.js';\r\n\r\nimport Keyboard from './keyboard.js';\r\nimport Animations from './util/animations.js';\r\nimport ScrollWheel from './scroll-wheel.js';\r\nimport UI from './ui/ui.js';\r\nimport { getViewportSize } from './util/viewport-size.js';\r\nimport { getThumbBounds } from './slide/get-thumb-bounds.js';\r\nimport PhotoSwipeBase from './core/base.js';\r\nimport Opener from './opener.js';\r\nimport ContentLoader from './slide/loader.js';\r\n\r\n/**\r\n * @template T\r\n * @typedef {import('./types.js').Type} Type\r\n */\r\n\r\n/** @typedef {import('./slide/slide.js').SlideData} SlideData */\r\n/** @typedef {import('./slide/zoom-level.js').ZoomLevelOption} ZoomLevelOption */\r\n/** @typedef {import('./ui/ui-element.js').UIElementData} UIElementData */\r\n/** @typedef {import('./main-scroll.js').ItemHolder} ItemHolder */\r\n/** @typedef {import('./core/eventable.js').PhotoSwipeEventsMap} PhotoSwipeEventsMap */\r\n/** @typedef {import('./core/eventable.js').PhotoSwipeFiltersMap} PhotoSwipeFiltersMap */\r\n/** @typedef {import('./slide/get-thumb-bounds').Bounds} Bounds */\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {import('./core/eventable.js').EventCallback} EventCallback\r\n */\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {import('./core/eventable.js').AugmentedEvent} AugmentedEvent\r\n */\r\n\r\n/** @typedef {{ x: number; y: number; id?: string | number }} Point */\r\n/** @typedef {{ top: number; bottom: number; left: number; right: number }} Padding */\r\n/** @typedef {SlideData[]} DataSourceArray */\r\n/** @typedef {{ gallery: HTMLElement; items?: HTMLElement[] }} DataSourceObject */\r\n/** @typedef {DataSourceArray | DataSourceObject} DataSource */\r\n/** @typedef {(point: Point, originalEvent: PointerEvent) => void} ActionFn */\r\n/** @typedef {'close' | 'next' | 'zoom' | 'zoom-or-close' | 'toggle-controls'} ActionType */\r\n/** @typedef {Type | { default: Type }} PhotoSwipeModule */\r\n/** @typedef {PhotoSwipeModule | Promise | (() => Promise)} PhotoSwipeModuleOption */\r\n\r\n/**\r\n * @typedef {string | NodeListOf | HTMLElement[] | HTMLElement} ElementProvider\r\n */\r\n\r\n/** @typedef {Partial} PhotoSwipeOptions https://photoswipe.com/options/ */\r\n/**\r\n * @typedef {Object} PreparedPhotoSwipeOptions\r\n *\r\n * @prop {DataSource} [dataSource]\r\n * Pass an array of any items via dataSource option. Its length will determine amount of slides\r\n * (which may be modified further from numItems event).\r\n *\r\n * Each item should contain data that you need to generate slide\r\n * (for image slide it would be src (image URL), width (image width), height, srcset, alt).\r\n *\r\n * If these properties are not present in your initial array, you may \"pre-parse\" each item from itemData filter.\r\n *\r\n * @prop {number} bgOpacity\r\n * Background backdrop opacity, always define it via this option and not via CSS rgba color.\r\n *\r\n * @prop {number} spacing\r\n * Spacing between slides. Defined as ratio relative to the viewport width (0.1 = 10% of viewport).\r\n *\r\n * @prop {boolean} allowPanToNext\r\n * Allow swipe navigation to the next slide when the current slide is zoomed. Does not apply to mouse events.\r\n *\r\n * @prop {boolean} loop\r\n * If set to true you'll be able to swipe from the last to the first image.\r\n * Option is always false when there are less than 3 slides.\r\n *\r\n * @prop {boolean} [wheelToZoom]\r\n * By default PhotoSwipe zooms image with ctrl-wheel, if you enable this option - image will zoom just via wheel.\r\n *\r\n * @prop {boolean} pinchToClose\r\n * Pinch touch gesture to close the gallery.\r\n *\r\n * @prop {boolean} closeOnVerticalDrag\r\n * Vertical drag gesture to close the PhotoSwipe.\r\n *\r\n * @prop {Padding} [padding]\r\n * Slide area padding (in pixels).\r\n *\r\n * @prop {(viewportSize: Point, itemData: SlideData, index: number) => Padding} [paddingFn]\r\n * The option is checked frequently, so make sure it's performant. Overrides padding option if defined. For example:\r\n *\r\n * @prop {number | false} hideAnimationDuration\r\n * Transition duration in milliseconds, can be 0.\r\n *\r\n * @prop {number | false} showAnimationDuration\r\n * Transition duration in milliseconds, can be 0.\r\n *\r\n * @prop {number | false} zoomAnimationDuration\r\n * Transition duration in milliseconds, can be 0.\r\n *\r\n * @prop {string} easing\r\n * String, 'cubic-bezier(.4,0,.22,1)'. CSS easing function for open/close/zoom transitions.\r\n *\r\n * @prop {boolean} escKey\r\n * Esc key to close.\r\n *\r\n * @prop {boolean} arrowKeys\r\n * Left/right arrow keys for navigation.\r\n *\r\n * @prop {boolean} trapFocus\r\n * Trap focus within PhotoSwipe element while it's open.\r\n *\r\n * @prop {boolean} returnFocus\r\n * Restore focus the last active element after PhotoSwipe is closed.\r\n *\r\n * @prop {boolean} clickToCloseNonZoomable\r\n * If image is not zoomable (for example, smaller than viewport) it can be closed by clicking on it.\r\n *\r\n * @prop {ActionType | ActionFn | false} imageClickAction\r\n * Refer to click and tap actions page.\r\n *\r\n * @prop {ActionType | ActionFn | false} bgClickAction\r\n * Refer to click and tap actions page.\r\n *\r\n * @prop {ActionType | ActionFn | false} tapAction\r\n * Refer to click and tap actions page.\r\n *\r\n * @prop {ActionType | ActionFn | false} doubleTapAction\r\n * Refer to click and tap actions page.\r\n *\r\n * @prop {number} preloaderDelay\r\n * Delay before the loading indicator will be displayed,\r\n * if image is loaded during it - the indicator will not be displayed at all. Can be zero.\r\n *\r\n * @prop {string} indexIndicatorSep\r\n * Used for slide count indicator (\"1 of 10 \").\r\n *\r\n * @prop {(options: PhotoSwipeOptions, pswp: PhotoSwipeBase) => Point} [getViewportSizeFn]\r\n * A function that should return slide viewport width and height, in format {x: 100, y: 100}.\r\n *\r\n * @prop {string} errorMsg\r\n * Message to display when the image wasn't able to load. If you need to display HTML - use contentErrorElement filter.\r\n *\r\n * @prop {[number, number]} preload\r\n * Lazy loading of nearby slides based on direction of movement. Should be an array with two integers,\r\n * first one - number of items to preload before the current image, second one - after the current image.\r\n * Two nearby images are always loaded.\r\n *\r\n * @prop {string} [mainClass]\r\n * Class that will be added to the root element of PhotoSwipe, may contain multiple separated by space.\r\n * Example on Styling page.\r\n *\r\n * @prop {HTMLElement} [appendToEl]\r\n * Element to which PhotoSwipe dialog will be appended when it opens.\r\n *\r\n * @prop {number} maxWidthToAnimate\r\n * Maximum width of image to animate, if initial rendered image width\r\n * is larger than this value - the opening/closing transition will be automatically disabled.\r\n *\r\n * @prop {string} [closeTitle]\r\n * Translating\r\n *\r\n * @prop {string} [zoomTitle]\r\n * Translating\r\n *\r\n * @prop {string} [arrowPrevTitle]\r\n * Translating\r\n *\r\n * @prop {string} [arrowNextTitle]\r\n * Translating\r\n *\r\n * @prop {'zoom' | 'fade' | 'none'} [showHideAnimationType]\r\n * To adjust opening or closing transition type use lightbox option `showHideAnimationType` (`String`).\r\n * It supports three values - `zoom` (default), `fade` (default if there is no thumbnail) and `none`.\r\n *\r\n * Animations are automatically disabled if user `(prefers-reduced-motion: reduce)`.\r\n *\r\n * @prop {number} index\r\n * Defines start slide index.\r\n *\r\n * @prop {(e: MouseEvent) => number} [getClickedIndexFn]\r\n *\r\n * @prop {boolean} [arrowPrev]\r\n * @prop {boolean} [arrowNext]\r\n * @prop {boolean} [zoom]\r\n * @prop {boolean} [close]\r\n * @prop {boolean} [counter]\r\n *\r\n * @prop {string} [arrowPrevSVG]\r\n * @prop {string} [arrowNextSVG]\r\n * @prop {string} [zoomSVG]\r\n * @prop {string} [closeSVG]\r\n * @prop {string} [counterSVG]\r\n *\r\n * @prop {string} [arrowPrevTitle]\r\n * @prop {string} [arrowNextTitle]\r\n * @prop {string} [zoomTitle]\r\n * @prop {string} [closeTitle]\r\n * @prop {string} [counterTitle]\r\n *\r\n * @prop {ZoomLevelOption} [initialZoomLevel]\r\n * @prop {ZoomLevelOption} [secondaryZoomLevel]\r\n * @prop {ZoomLevelOption} [maxZoomLevel]\r\n *\r\n * @prop {boolean} [mouseMovePan]\r\n * @prop {Point | null} [initialPointerPos]\r\n * @prop {boolean} [showHideOpacity]\r\n *\r\n * @prop {PhotoSwipeModuleOption} [pswpModule]\r\n * @prop {() => Promise} [openPromise]\r\n * @prop {boolean} [preloadFirstSlide]\r\n * @prop {ElementProvider} [gallery]\r\n * @prop {string} [gallerySelector]\r\n * @prop {ElementProvider} [children]\r\n * @prop {string} [childSelector]\r\n * @prop {string | false} [thumbSelector]\r\n */\r\n\r\n/** @type {PreparedPhotoSwipeOptions} */\r\nconst defaultOptions = {\r\n allowPanToNext: true,\r\n spacing: 0.1,\r\n loop: true,\r\n pinchToClose: true,\r\n closeOnVerticalDrag: true,\r\n hideAnimationDuration: 333,\r\n showAnimationDuration: 333,\r\n zoomAnimationDuration: 333,\r\n escKey: true,\r\n arrowKeys: true,\r\n trapFocus: true,\r\n returnFocus: true,\r\n maxWidthToAnimate: 4000,\r\n clickToCloseNonZoomable: true,\r\n imageClickAction: 'zoom-or-close',\r\n bgClickAction: 'close',\r\n tapAction: 'toggle-controls',\r\n doubleTapAction: 'zoom',\r\n indexIndicatorSep: ' / ',\r\n preloaderDelay: 2000,\r\n bgOpacity: 0.8,\r\n\r\n index: 0,\r\n errorMsg: 'The image cannot be loaded',\r\n preload: [1, 2],\r\n easing: 'cubic-bezier(.4,0,.22,1)'\r\n};\r\n\r\n/**\r\n * PhotoSwipe Core\r\n */\r\nclass PhotoSwipe extends PhotoSwipeBase {\r\n /**\r\n * @param {PhotoSwipeOptions} [options]\r\n */\r\n constructor(options) {\r\n super();\r\n\r\n this.options = this._prepareOptions(options || {});\r\n\r\n /**\r\n * offset of viewport relative to document\r\n *\r\n * @type {Point}\r\n */\r\n this.offset = { x: 0, y: 0 };\r\n\r\n /**\r\n * @type {Point}\r\n * @private\r\n */\r\n this._prevViewportSize = { x: 0, y: 0 };\r\n\r\n /**\r\n * Size of scrollable PhotoSwipe viewport\r\n *\r\n * @type {Point}\r\n */\r\n this.viewportSize = { x: 0, y: 0 };\r\n\r\n /**\r\n * background (backdrop) opacity\r\n */\r\n this.bgOpacity = 1;\r\n this.currIndex = 0;\r\n this.potentialIndex = 0;\r\n this.isOpen = false;\r\n this.isDestroying = false;\r\n this.hasMouse = false;\r\n\r\n /**\r\n * @private\r\n * @type {SlideData}\r\n */\r\n this._initialItemData = {};\r\n /** @type {Bounds | undefined} */\r\n this._initialThumbBounds = undefined;\r\n\r\n /** @type {HTMLDivElement | undefined} */\r\n this.topBar = undefined;\r\n /** @type {HTMLDivElement | undefined} */\r\n this.element = undefined;\r\n /** @type {HTMLDivElement | undefined} */\r\n this.template = undefined;\r\n /** @type {HTMLDivElement | undefined} */\r\n this.container = undefined;\r\n /** @type {HTMLElement | undefined} */\r\n this.scrollWrap = undefined;\r\n /** @type {Slide | undefined} */\r\n this.currSlide = undefined;\r\n\r\n this.events = new DOMEvents();\r\n this.animations = new Animations();\r\n this.mainScroll = new MainScroll(this);\r\n this.gestures = new Gestures(this);\r\n this.opener = new Opener(this);\r\n this.keyboard = new Keyboard(this);\r\n this.contentLoader = new ContentLoader(this);\r\n }\r\n\r\n /** @returns {boolean} */\r\n init() {\r\n if (this.isOpen || this.isDestroying) {\r\n return false;\r\n }\r\n\r\n this.isOpen = true;\r\n this.dispatch('init'); // legacy\r\n this.dispatch('beforeOpen');\r\n\r\n this._createMainStructure();\r\n\r\n // add classes to the root element of PhotoSwipe\r\n let rootClasses = 'pswp--open';\r\n if (this.gestures.supportsTouch) {\r\n rootClasses += ' pswp--touch';\r\n }\r\n if (this.options.mainClass) {\r\n rootClasses += ' ' + this.options.mainClass;\r\n }\r\n if (this.element) {\r\n this.element.className += ' ' + rootClasses;\r\n }\r\n\r\n this.currIndex = this.options.index || 0;\r\n this.potentialIndex = this.currIndex;\r\n this.dispatch('firstUpdate'); // starting index can be modified here\r\n\r\n // initialize scroll wheel handler to block the scroll\r\n this.scrollWheel = new ScrollWheel(this);\r\n\r\n // sanitize index\r\n if (Number.isNaN(this.currIndex)\r\n || this.currIndex < 0\r\n || this.currIndex >= this.getNumItems()) {\r\n this.currIndex = 0;\r\n }\r\n\r\n if (!this.gestures.supportsTouch) {\r\n // enable mouse features if no touch support detected\r\n this.mouseDetected();\r\n }\r\n\r\n // causes forced synchronous layout\r\n this.updateSize();\r\n\r\n this.offset.y = window.pageYOffset;\r\n\r\n this._initialItemData = this.getItemData(this.currIndex);\r\n this.dispatch('gettingData', {\r\n index: this.currIndex,\r\n data: this._initialItemData,\r\n slide: undefined\r\n });\r\n\r\n // *Layout* - calculate size and position of elements here\r\n this._initialThumbBounds = this.getThumbBounds();\r\n this.dispatch('initialLayout');\r\n\r\n this.on('openingAnimationEnd', () => {\r\n const { itemHolders } = this.mainScroll;\r\n\r\n // Add content to the previous and next slide\r\n if (itemHolders[0]) {\r\n itemHolders[0].el.style.display = 'block';\r\n this.setContent(itemHolders[0], this.currIndex - 1);\r\n }\r\n if (itemHolders[2]) {\r\n itemHolders[2].el.style.display = 'block';\r\n this.setContent(itemHolders[2], this.currIndex + 1);\r\n }\r\n\r\n this.appendHeavy();\r\n\r\n this.contentLoader.updateLazy();\r\n\r\n this.events.add(window, 'resize', this._handlePageResize.bind(this));\r\n this.events.add(window, 'scroll', this._updatePageScrollOffset.bind(this));\r\n this.dispatch('bindEvents');\r\n });\r\n\r\n // set content for center slide (first time)\r\n if (this.mainScroll.itemHolders[1]) {\r\n this.setContent(this.mainScroll.itemHolders[1], this.currIndex);\r\n }\r\n this.dispatch('change');\r\n\r\n this.opener.open();\r\n\r\n this.dispatch('afterInit');\r\n\r\n return true;\r\n }\r\n\r\n /**\r\n * Get looped slide index\r\n * (for example, -1 will return the last slide)\r\n *\r\n * @param {number} index\r\n * @returns {number}\r\n */\r\n getLoopedIndex(index) {\r\n const numSlides = this.getNumItems();\r\n\r\n if (this.options.loop) {\r\n if (index > numSlides - 1) {\r\n index -= numSlides;\r\n }\r\n\r\n if (index < 0) {\r\n index += numSlides;\r\n }\r\n }\r\n\r\n return clamp(index, 0, numSlides - 1);\r\n }\r\n\r\n appendHeavy() {\r\n this.mainScroll.itemHolders.forEach((itemHolder) => {\r\n itemHolder.slide?.appendHeavy();\r\n });\r\n }\r\n\r\n /**\r\n * Change the slide\r\n * @param {number} index New index\r\n */\r\n goTo(index) {\r\n this.mainScroll.moveIndexBy(\r\n this.getLoopedIndex(index) - this.potentialIndex\r\n );\r\n }\r\n\r\n /**\r\n * Go to the next slide.\r\n */\r\n next() {\r\n this.goTo(this.potentialIndex + 1);\r\n }\r\n\r\n /**\r\n * Go to the previous slide.\r\n */\r\n prev() {\r\n this.goTo(this.potentialIndex - 1);\r\n }\r\n\r\n /**\r\n * @see slide/slide.js zoomTo\r\n *\r\n * @param {Parameters} args\r\n */\r\n zoomTo(...args) {\r\n this.currSlide?.zoomTo(...args);\r\n }\r\n\r\n /**\r\n * @see slide/slide.js toggleZoom\r\n */\r\n toggleZoom() {\r\n this.currSlide?.toggleZoom();\r\n }\r\n\r\n /**\r\n * Close the gallery.\r\n * After closing transition ends - destroy it\r\n */\r\n close() {\r\n if (!this.opener.isOpen || this.isDestroying) {\r\n return;\r\n }\r\n\r\n this.isDestroying = true;\r\n\r\n this.dispatch('close');\r\n\r\n this.events.removeAll();\r\n this.opener.close();\r\n }\r\n\r\n /**\r\n * Destroys the gallery:\r\n * - instantly closes the gallery\r\n * - unbinds events,\r\n * - cleans intervals and timeouts\r\n * - removes elements from DOM\r\n */\r\n destroy() {\r\n if (!this.isDestroying) {\r\n this.options.showHideAnimationType = 'none';\r\n this.close();\r\n return;\r\n }\r\n\r\n this.dispatch('destroy');\r\n\r\n this._listeners = {};\r\n\r\n if (this.scrollWrap) {\r\n this.scrollWrap.ontouchmove = null;\r\n this.scrollWrap.ontouchend = null;\r\n }\r\n\r\n this.element?.remove();\r\n\r\n this.mainScroll.itemHolders.forEach((itemHolder) => {\r\n itemHolder.slide?.destroy();\r\n });\r\n\r\n this.contentLoader.destroy();\r\n this.events.removeAll();\r\n }\r\n\r\n /**\r\n * Refresh/reload content of a slide by its index\r\n *\r\n * @param {number} slideIndex\r\n */\r\n refreshSlideContent(slideIndex) {\r\n this.contentLoader.removeByIndex(slideIndex);\r\n this.mainScroll.itemHolders.forEach((itemHolder, i) => {\r\n let potentialHolderIndex = (this.currSlide?.index ?? 0) - 1 + i;\r\n if (this.canLoop()) {\r\n potentialHolderIndex = this.getLoopedIndex(potentialHolderIndex);\r\n }\r\n if (potentialHolderIndex === slideIndex) {\r\n // set the new slide content\r\n this.setContent(itemHolder, slideIndex, true);\r\n\r\n // activate the new slide if it's current\r\n if (i === 1) {\r\n this.currSlide = itemHolder.slide;\r\n itemHolder.slide?.setIsActive(true);\r\n }\r\n }\r\n });\r\n\r\n this.dispatch('change');\r\n }\r\n\r\n\r\n /**\r\n * Set slide content\r\n *\r\n * @param {ItemHolder} holder mainScroll.itemHolders array item\r\n * @param {number} index Slide index\r\n * @param {boolean} [force] If content should be set even if index wasn't changed\r\n */\r\n setContent(holder, index, force) {\r\n if (this.canLoop()) {\r\n index = this.getLoopedIndex(index);\r\n }\r\n\r\n if (holder.slide) {\r\n if (holder.slide.index === index && !force) {\r\n // exit if holder already contains this slide\r\n // this could be common when just three slides are used\r\n return;\r\n }\r\n\r\n // destroy previous slide\r\n holder.slide.destroy();\r\n holder.slide = undefined;\r\n }\r\n\r\n // exit if no loop and index is out of bounds\r\n if (!this.canLoop() && (index < 0 || index >= this.getNumItems())) {\r\n return;\r\n }\r\n\r\n const itemData = this.getItemData(index);\r\n holder.slide = new Slide(itemData, index, this);\r\n\r\n // set current slide\r\n if (index === this.currIndex) {\r\n this.currSlide = holder.slide;\r\n }\r\n\r\n holder.slide.append(holder.el);\r\n }\r\n\r\n /** @returns {Point} */\r\n getViewportCenterPoint() {\r\n return {\r\n x: this.viewportSize.x / 2,\r\n y: this.viewportSize.y / 2\r\n };\r\n }\r\n\r\n /**\r\n * Update size of all elements.\r\n * Executed on init and on page resize.\r\n *\r\n * @param {boolean} [force] Update size even if size of viewport was not changed.\r\n */\r\n updateSize(force) {\r\n // let item;\r\n // let itemIndex;\r\n\r\n if (this.isDestroying) {\r\n // exit if PhotoSwipe is closed or closing\r\n // (to avoid errors, as resize event might be delayed)\r\n return;\r\n }\r\n\r\n //const newWidth = this.scrollWrap.clientWidth;\r\n //const newHeight = this.scrollWrap.clientHeight;\r\n\r\n const newViewportSize = getViewportSize(this.options, this);\r\n\r\n if (!force && pointsEqual(newViewportSize, this._prevViewportSize)) {\r\n // Exit if dimensions were not changed\r\n return;\r\n }\r\n\r\n //this._prevViewportSize.x = newWidth;\r\n //this._prevViewportSize.y = newHeight;\r\n equalizePoints(this._prevViewportSize, newViewportSize);\r\n\r\n this.dispatch('beforeResize');\r\n\r\n equalizePoints(this.viewportSize, this._prevViewportSize);\r\n\r\n this._updatePageScrollOffset();\r\n\r\n this.dispatch('viewportSize');\r\n\r\n // Resize slides only after opener animation is finished\r\n // and don't re-calculate size on inital size update\r\n this.mainScroll.resize(this.opener.isOpen);\r\n\r\n if (!this.hasMouse && window.matchMedia('(any-hover: hover)').matches) {\r\n this.mouseDetected();\r\n }\r\n\r\n this.dispatch('resize');\r\n }\r\n\r\n /**\r\n * @param {number} opacity\r\n */\r\n applyBgOpacity(opacity) {\r\n this.bgOpacity = Math.max(opacity, 0);\r\n if (this.bg) {\r\n this.bg.style.opacity = String(this.bgOpacity * this.options.bgOpacity);\r\n }\r\n }\r\n\r\n /**\r\n * Whether mouse is detected\r\n */\r\n mouseDetected() {\r\n if (!this.hasMouse) {\r\n this.hasMouse = true;\r\n this.element?.classList.add('pswp--has_mouse');\r\n }\r\n }\r\n\r\n /**\r\n * Page resize event handler\r\n *\r\n * @private\r\n */\r\n _handlePageResize() {\r\n this.updateSize();\r\n\r\n // In iOS webview, if element size depends on document size,\r\n // it'll be measured incorrectly in resize event\r\n //\r\n // https://bugs.webkit.org/show_bug.cgi?id=170595\r\n // https://hackernoon.com/onresize-event-broken-in-mobile-safari-d8469027bf4d\r\n if (/iPhone|iPad|iPod/i.test(window.navigator.userAgent)) {\r\n setTimeout(() => {\r\n this.updateSize();\r\n }, 500);\r\n }\r\n }\r\n\r\n /**\r\n * Page scroll offset is used\r\n * to get correct coordinates\r\n * relative to PhotoSwipe viewport.\r\n *\r\n * @private\r\n */\r\n _updatePageScrollOffset() {\r\n this.setScrollOffset(0, window.pageYOffset);\r\n }\r\n\r\n /**\r\n * @param {number} x\r\n * @param {number} y\r\n */\r\n setScrollOffset(x, y) {\r\n this.offset.x = x;\r\n this.offset.y = y;\r\n this.dispatch('updateScrollOffset');\r\n }\r\n\r\n /**\r\n * Create main HTML structure of PhotoSwipe,\r\n * and add it to DOM\r\n *\r\n * @private\r\n */\r\n _createMainStructure() {\r\n // root DOM element of PhotoSwipe (.pswp)\r\n this.element = createElement('pswp', 'div');\r\n this.element.setAttribute('tabindex', '-1');\r\n this.element.setAttribute('role', 'dialog');\r\n\r\n // template is legacy prop\r\n this.template = this.element;\r\n\r\n // Background is added as a separate element,\r\n // as animating opacity is faster than animating rgba()\r\n this.bg = createElement('pswp__bg', 'div', this.element);\r\n this.scrollWrap = createElement('pswp__scroll-wrap', 'section', this.element);\r\n this.container = createElement('pswp__container', 'div', this.scrollWrap);\r\n\r\n // aria pattern: carousel\r\n this.scrollWrap.setAttribute('aria-roledescription', 'carousel');\r\n this.container.setAttribute('aria-live', 'off');\r\n this.container.setAttribute('id', 'pswp__items');\r\n\r\n this.mainScroll.appendHolders();\r\n\r\n this.ui = new UI(this);\r\n this.ui.init();\r\n\r\n // append to DOM\r\n (this.options.appendToEl || document.body).appendChild(this.element);\r\n }\r\n\r\n\r\n /**\r\n * Get position and dimensions of small thumbnail\r\n * {x:,y:,w:}\r\n *\r\n * Height is optional (calculated based on the large image)\r\n *\r\n * @returns {Bounds | undefined}\r\n */\r\n getThumbBounds() {\r\n return getThumbBounds(\r\n this.currIndex,\r\n this.currSlide ? this.currSlide.data : this._initialItemData,\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * If the PhotoSwipe can have continuous loop\r\n * @returns Boolean\r\n */\r\n canLoop() {\r\n return (this.options.loop && this.getNumItems() > 2);\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {PhotoSwipeOptions} options\r\n * @returns {PreparedPhotoSwipeOptions}\r\n */\r\n _prepareOptions(options) {\r\n if (window.matchMedia('(prefers-reduced-motion), (update: slow)').matches) {\r\n options.showHideAnimationType = 'none';\r\n options.zoomAnimationDuration = 0;\r\n }\r\n\r\n /** @type {PreparedPhotoSwipeOptions} */\r\n return {\r\n ...defaultOptions,\r\n ...options\r\n };\r\n }\r\n}\r\n\r\nexport default PhotoSwipe;\r\n","/** @typedef {import('../photoswipe.js').Point} Point */\r\n\r\n/**\r\n * @template {keyof HTMLElementTagNameMap} T\r\n * @param {string} className\r\n * @param {T} tagName\r\n * @param {Node} [appendToEl]\r\n * @returns {HTMLElementTagNameMap[T]}\r\n */\r\nexport function createElement(className, tagName, appendToEl) {\r\n const el = document.createElement(tagName);\r\n if (className) {\r\n el.className = className;\r\n }\r\n if (appendToEl) {\r\n appendToEl.appendChild(el);\r\n }\r\n return el;\r\n}\r\n\r\n/**\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {Point}\r\n */\r\nexport function equalizePoints(p1, p2) {\r\n p1.x = p2.x;\r\n p1.y = p2.y;\r\n if (p2.id !== undefined) {\r\n p1.id = p2.id;\r\n }\r\n return p1;\r\n}\r\n\r\n/**\r\n * @param {Point} p\r\n */\r\nexport function roundPoint(p) {\r\n p.x = Math.round(p.x);\r\n p.y = Math.round(p.y);\r\n}\r\n\r\n/**\r\n * Returns distance between two points.\r\n *\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {number}\r\n */\r\nexport function getDistanceBetween(p1, p2) {\r\n const x = Math.abs(p1.x - p2.x);\r\n const y = Math.abs(p1.y - p2.y);\r\n return Math.sqrt((x * x) + (y * y));\r\n}\r\n\r\n/**\r\n * Whether X and Y positions of points are equal\r\n *\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {boolean}\r\n */\r\nexport function pointsEqual(p1, p2) {\r\n return p1.x === p2.x && p1.y === p2.y;\r\n}\r\n\r\n/**\r\n * The float result between the min and max values.\r\n *\r\n * @param {number} val\r\n * @param {number} min\r\n * @param {number} max\r\n * @returns {number}\r\n */\r\nexport function clamp(val, min, max) {\r\n return Math.min(Math.max(val, min), max);\r\n}\r\n\r\n/**\r\n * Get transform string\r\n *\r\n * @param {number} x\r\n * @param {number} [y]\r\n * @param {number} [scale]\r\n * @returns {string}\r\n */\r\nexport function toTransformString(x, y, scale) {\r\n let propValue = `translate3d(${x}px,${y || 0}px,0)`;\r\n\r\n if (scale !== undefined) {\r\n propValue += ` scale3d(${scale},${scale},1)`;\r\n }\r\n\r\n return propValue;\r\n}\r\n\r\n/**\r\n * Apply transform:translate(x, y) scale(scale) to element\r\n *\r\n * @param {HTMLElement} el\r\n * @param {number} x\r\n * @param {number} [y]\r\n * @param {number} [scale]\r\n */\r\nexport function setTransform(el, x, y, scale) {\r\n el.style.transform = toTransformString(x, y, scale);\r\n}\r\n\r\nconst defaultCSSEasing = 'cubic-bezier(.4,0,.22,1)';\r\n\r\n/**\r\n * Apply CSS transition to element\r\n *\r\n * @param {HTMLElement} el\r\n * @param {string} [prop] CSS property to animate\r\n * @param {number} [duration] in ms\r\n * @param {string} [ease] CSS easing function\r\n */\r\nexport function setTransitionStyle(el, prop, duration, ease) {\r\n // inOut: 'cubic-bezier(.4, 0, .22, 1)', // for \"toggle state\" transitions\r\n // out: 'cubic-bezier(0, 0, .22, 1)', // for \"show\" transitions\r\n // in: 'cubic-bezier(.4, 0, 1, 1)'// for \"hide\" transitions\r\n el.style.transition = prop\r\n ? `${prop} ${duration}ms ${ease || defaultCSSEasing}`\r\n : 'none';\r\n}\r\n\r\n/**\r\n * Apply width and height CSS properties to element\r\n *\r\n * @param {HTMLElement} el\r\n * @param {string | number} w\r\n * @param {string | number} h\r\n */\r\nexport function setWidthHeight(el, w, h) {\r\n el.style.width = (typeof w === 'number') ? `${w}px` : w;\r\n el.style.height = (typeof h === 'number') ? `${h}px` : h;\r\n}\r\n\r\n/**\r\n * @param {HTMLElement} el\r\n */\r\nexport function removeTransitionStyle(el) {\r\n setTransitionStyle(el);\r\n}\r\n\r\n/**\r\n * @param {HTMLImageElement} img\r\n * @returns {Promise}\r\n */\r\nexport function decodeImage(img) {\r\n if ('decode' in img) {\r\n return img.decode().catch(() => {});\r\n }\r\n\r\n if (img.complete) {\r\n return Promise.resolve(img);\r\n }\r\n\r\n return new Promise((resolve, reject) => {\r\n img.onload = () => resolve(img);\r\n img.onerror = reject;\r\n });\r\n}\r\n\r\n/** @typedef {LOAD_STATE[keyof LOAD_STATE]} LoadState */\r\n/** @type {{ IDLE: 'idle'; LOADING: 'loading'; LOADED: 'loaded'; ERROR: 'error' }} */\r\nexport const LOAD_STATE = {\r\n IDLE: 'idle',\r\n LOADING: 'loading',\r\n LOADED: 'loaded',\r\n ERROR: 'error',\r\n};\r\n\r\n\r\n/**\r\n * Check if click or keydown event was dispatched\r\n * with a special key or via mouse wheel.\r\n *\r\n * @param {MouseEvent | KeyboardEvent} e\r\n * @returns {boolean}\r\n */\r\nexport function specialKeyUsed(e) {\r\n return ('button' in e && e.button === 1) || e.ctrlKey || e.metaKey || e.altKey || e.shiftKey;\r\n}\r\n\r\n/**\r\n * Parse `gallery` or `children` options.\r\n *\r\n * @param {import('../photoswipe.js').ElementProvider} [option]\r\n * @param {string} [legacySelector]\r\n * @param {HTMLElement | Document} [parent]\r\n * @returns HTMLElement[]\r\n */\r\nexport function getElementsFromOption(option, legacySelector, parent = document) {\r\n /** @type {HTMLElement[]} */\r\n let elements = [];\r\n\r\n if (option instanceof Element) {\r\n elements = [option];\r\n } else if (option instanceof NodeList || Array.isArray(option)) {\r\n elements = Array.from(option);\r\n } else {\r\n const selector = typeof option === 'string' ? option : legacySelector;\r\n if (selector) {\r\n elements = Array.from(parent.querySelectorAll(selector));\r\n }\r\n }\r\n\r\n return elements;\r\n}\r\n\r\n/**\r\n * Check if variable is PhotoSwipe class\r\n *\r\n * @param {any} fn\r\n * @returns {boolean}\r\n */\r\nexport function isPswpClass(fn) {\r\n return typeof fn === 'function'\r\n && fn.prototype\r\n && fn.prototype.goTo;\r\n}\r\n\r\n/**\r\n * Check if browser is Safari\r\n *\r\n * @returns {boolean}\r\n */\r\nexport function isSafari() {\r\n return !!(navigator.vendor && navigator.vendor.match(/apple/i));\r\n}\r\n\r\n","/** @typedef {import('../lightbox/lightbox.js').default} PhotoSwipeLightbox */\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../photoswipe.js').DataSource} DataSource */\r\n/** @typedef {import('../ui/ui-element.js').UIElementData} UIElementData */\r\n/** @typedef {import('../slide/content.js').default} ContentDefault */\r\n/** @typedef {import('../slide/slide.js').default} Slide */\r\n/** @typedef {import('../slide/slide.js').SlideData} SlideData */\r\n/** @typedef {import('../slide/zoom-level.js').default} ZoomLevel */\r\n/** @typedef {import('../slide/get-thumb-bounds.js').Bounds} Bounds */\r\n\r\n/**\r\n * Allow adding an arbitrary props to the Content\r\n * https://photoswipe.com/custom-content/#using-webp-image-format\r\n * @typedef {ContentDefault & Record} Content\r\n */\r\n/** @typedef {{ x?: number; y?: number }} Point */\r\n\r\n/**\r\n * @typedef {Object} PhotoSwipeEventsMap https://photoswipe.com/events/\r\n *\r\n *\r\n * https://photoswipe.com/adding-ui-elements/\r\n *\r\n * @prop {undefined} uiRegister\r\n * @prop {{ data: UIElementData }} uiElementCreate\r\n *\r\n *\r\n * https://photoswipe.com/events/#initialization-events\r\n *\r\n * @prop {undefined} beforeOpen\r\n * @prop {undefined} firstUpdate\r\n * @prop {undefined} initialLayout\r\n * @prop {undefined} change\r\n * @prop {undefined} afterInit\r\n * @prop {undefined} bindEvents\r\n *\r\n *\r\n * https://photoswipe.com/events/#opening-or-closing-transition-events\r\n *\r\n * @prop {undefined} openingAnimationStart\r\n * @prop {undefined} openingAnimationEnd\r\n * @prop {undefined} closingAnimationStart\r\n * @prop {undefined} closingAnimationEnd\r\n *\r\n *\r\n * https://photoswipe.com/events/#closing-events\r\n *\r\n * @prop {undefined} close\r\n * @prop {undefined} destroy\r\n *\r\n *\r\n * https://photoswipe.com/events/#pointer-and-gesture-events\r\n *\r\n * @prop {{ originalEvent: PointerEvent }} pointerDown\r\n * @prop {{ originalEvent: PointerEvent }} pointerMove\r\n * @prop {{ originalEvent: PointerEvent }} pointerUp\r\n * @prop {{ bgOpacity: number }} pinchClose can be default prevented\r\n * @prop {{ panY: number }} verticalDrag can be default prevented\r\n *\r\n *\r\n * https://photoswipe.com/events/#slide-content-events\r\n *\r\n * @prop {{ content: Content }} contentInit\r\n * @prop {{ content: Content; isLazy: boolean }} contentLoad can be default prevented\r\n * @prop {{ content: Content; isLazy: boolean }} contentLoadImage can be default prevented\r\n * @prop {{ content: Content; slide: Slide; isError?: boolean }} loadComplete\r\n * @prop {{ content: Content; slide: Slide }} loadError\r\n * @prop {{ content: Content; width: number; height: number }} contentResize can be default prevented\r\n * @prop {{ content: Content; width: number; height: number; slide: Slide }} imageSizeChange\r\n * @prop {{ content: Content }} contentLazyLoad can be default prevented\r\n * @prop {{ content: Content }} contentAppend can be default prevented\r\n * @prop {{ content: Content }} contentActivate can be default prevented\r\n * @prop {{ content: Content }} contentDeactivate can be default prevented\r\n * @prop {{ content: Content }} contentRemove can be default prevented\r\n * @prop {{ content: Content }} contentDestroy can be default prevented\r\n *\r\n *\r\n * undocumented\r\n *\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} imageClickAction can be default prevented\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} bgClickAction can be default prevented\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} tapAction can be default prevented\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} doubleTapAction can be default prevented\r\n *\r\n * @prop {{ originalEvent: KeyboardEvent }} keydown can be default prevented\r\n * @prop {{ x: number; dragging: boolean }} moveMainScroll\r\n * @prop {{ slide: Slide }} firstZoomPan\r\n * @prop {{ slide: Slide | undefined, data: SlideData, index: number }} gettingData\r\n * @prop {undefined} beforeResize\r\n * @prop {undefined} resize\r\n * @prop {undefined} viewportSize\r\n * @prop {undefined} updateScrollOffset\r\n * @prop {{ slide: Slide }} slideInit\r\n * @prop {{ slide: Slide }} afterSetContent\r\n * @prop {{ slide: Slide }} slideLoad\r\n * @prop {{ slide: Slide }} appendHeavy can be default prevented\r\n * @prop {{ slide: Slide }} appendHeavyContent\r\n * @prop {{ slide: Slide }} slideActivate\r\n * @prop {{ slide: Slide }} slideDeactivate\r\n * @prop {{ slide: Slide }} slideDestroy\r\n * @prop {{ destZoomLevel: number, centerPoint: Point | undefined, transitionDuration: number | false | undefined }} beforeZoomTo\r\n * @prop {{ slide: Slide }} zoomPanUpdate\r\n * @prop {{ slide: Slide }} initialZoomPan\r\n * @prop {{ slide: Slide }} calcSlideSize\r\n * @prop {undefined} resolutionChanged\r\n * @prop {{ originalEvent: WheelEvent }} wheel can be default prevented\r\n * @prop {{ content: Content }} contentAppendImage can be default prevented\r\n * @prop {{ index: number; itemData: SlideData }} lazyLoadSlide can be default prevented\r\n * @prop {undefined} lazyLoad\r\n * @prop {{ slide: Slide }} calcBounds\r\n * @prop {{ zoomLevels: ZoomLevel, slideData: SlideData }} zoomLevelsUpdate\r\n *\r\n *\r\n * legacy\r\n *\r\n * @prop {undefined} init\r\n * @prop {undefined} initialZoomIn\r\n * @prop {undefined} initialZoomOut\r\n * @prop {undefined} initialZoomInEnd\r\n * @prop {undefined} initialZoomOutEnd\r\n * @prop {{ dataSource: DataSource | undefined, numItems: number }} numItems\r\n * @prop {{ itemData: SlideData; index: number }} itemData\r\n * @prop {{ index: number, itemData: SlideData, instance: PhotoSwipe }} thumbBounds\r\n */\r\n\r\n/**\r\n * @typedef {Object} PhotoSwipeFiltersMap https://photoswipe.com/filters/\r\n *\r\n * @prop {(numItems: number, dataSource: DataSource | undefined) => number} numItems\r\n * Modify the total amount of slides. Example on Data sources page.\r\n * https://photoswipe.com/filters/#numitems\r\n *\r\n * @prop {(itemData: SlideData, index: number) => SlideData} itemData\r\n * Modify slide item data. Example on Data sources page.\r\n * https://photoswipe.com/filters/#itemdata\r\n *\r\n * @prop {(itemData: SlideData, element: HTMLElement, linkEl: HTMLAnchorElement) => SlideData} domItemData\r\n * Modify item data when it's parsed from DOM element. Example on Data sources page.\r\n * https://photoswipe.com/filters/#domitemdata\r\n *\r\n * @prop {(clickedIndex: number, e: MouseEvent, instance: PhotoSwipeLightbox) => number} clickedIndex\r\n * Modify clicked gallery item index.\r\n * https://photoswipe.com/filters/#clickedindex\r\n *\r\n * @prop {(placeholderSrc: string | false, content: Content) => string | false} placeholderSrc\r\n * Modify placeholder image source.\r\n * https://photoswipe.com/filters/#placeholdersrc\r\n *\r\n * @prop {(isContentLoading: boolean, content: Content) => boolean} isContentLoading\r\n * Modify if the content is currently loading.\r\n * https://photoswipe.com/filters/#iscontentloading\r\n *\r\n * @prop {(isContentZoomable: boolean, content: Content) => boolean} isContentZoomable\r\n * Modify if the content can be zoomed.\r\n * https://photoswipe.com/filters/#iscontentzoomable\r\n *\r\n * @prop {(useContentPlaceholder: boolean, content: Content) => boolean} useContentPlaceholder\r\n * Modify if the placeholder should be used for the content.\r\n * https://photoswipe.com/filters/#usecontentplaceholder\r\n *\r\n * @prop {(isKeepingPlaceholder: boolean, content: Content) => boolean} isKeepingPlaceholder\r\n * Modify if the placeholder should be kept after the content is loaded.\r\n * https://photoswipe.com/filters/#iskeepingplaceholder\r\n *\r\n *\r\n * @prop {(contentErrorElement: HTMLElement, content: Content) => HTMLElement} contentErrorElement\r\n * Modify an element when the content has error state (for example, if image cannot be loaded).\r\n * https://photoswipe.com/filters/#contenterrorelement\r\n *\r\n * @prop {(element: HTMLElement, data: UIElementData) => HTMLElement} uiElement\r\n * Modify a UI element that's being created.\r\n * https://photoswipe.com/filters/#uielement\r\n *\r\n * @prop {(thumbnail: HTMLElement | null | undefined, itemData: SlideData, index: number) => HTMLElement} thumbEl\r\n * Modify the thumbnail element from which opening zoom animation starts or ends.\r\n * https://photoswipe.com/filters/#thumbel\r\n *\r\n * @prop {(thumbBounds: Bounds | undefined, itemData: SlideData, index: number) => Bounds} thumbBounds\r\n * Modify the thumbnail bounds from which opening zoom animation starts or ends.\r\n * https://photoswipe.com/filters/#thumbbounds\r\n *\r\n * @prop {(srcsetSizesWidth: number, content: Content) => number} srcsetSizesWidth\r\n *\r\n * @prop {(preventPointerEvent: boolean, event: PointerEvent, pointerType: string) => boolean} preventPointerEvent\r\n *\r\n */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @typedef {{ fn: PhotoSwipeFiltersMap[T], priority: number }} Filter\r\n */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {PhotoSwipeEventsMap[T] extends undefined ? PhotoSwipeEvent : PhotoSwipeEvent & PhotoSwipeEventsMap[T]} AugmentedEvent\r\n */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {(event: AugmentedEvent) => void} EventCallback\r\n */\r\n\r\n/**\r\n * Base PhotoSwipe event object\r\n *\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n */\r\nclass PhotoSwipeEvent {\r\n /**\r\n * @param {T} type\r\n * @param {PhotoSwipeEventsMap[T]} [details]\r\n */\r\n constructor(type, details) {\r\n this.type = type;\r\n this.defaultPrevented = false;\r\n if (details) {\r\n Object.assign(this, details);\r\n }\r\n }\r\n\r\n preventDefault() {\r\n this.defaultPrevented = true;\r\n }\r\n}\r\n\r\n/**\r\n * PhotoSwipe base class that can listen and dispatch for events.\r\n * Shared by PhotoSwipe Core and PhotoSwipe Lightbox, extended by base.js\r\n */\r\nclass Eventable {\r\n constructor() {\r\n /**\r\n * @type {{ [T in keyof PhotoSwipeEventsMap]?: ((event: AugmentedEvent) => void)[] }}\r\n */\r\n this._listeners = {};\r\n\r\n /**\r\n * @type {{ [T in keyof PhotoSwipeFiltersMap]?: Filter[] }}\r\n */\r\n this._filters = {};\r\n\r\n /** @type {PhotoSwipe | undefined} */\r\n this.pswp = undefined;\r\n\r\n /** @type {PhotoSwipeOptions | undefined} */\r\n this.options = undefined;\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @param {T} name\r\n * @param {PhotoSwipeFiltersMap[T]} fn\r\n * @param {number} priority\r\n */\r\n addFilter(name, fn, priority = 100) {\r\n if (!this._filters[name]) {\r\n this._filters[name] = [];\r\n }\r\n\r\n this._filters[name]?.push({ fn, priority });\r\n this._filters[name]?.sort((f1, f2) => f1.priority - f2.priority);\r\n\r\n this.pswp?.addFilter(name, fn, priority);\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @param {T} name\r\n * @param {PhotoSwipeFiltersMap[T]} fn\r\n */\r\n removeFilter(name, fn) {\r\n if (this._filters[name]) {\r\n // @ts-expect-error\r\n this._filters[name] = this._filters[name].filter(filter => (filter.fn !== fn));\r\n }\r\n\r\n if (this.pswp) {\r\n this.pswp.removeFilter(name, fn);\r\n }\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @param {T} name\r\n * @param {Parameters} args\r\n * @returns {Parameters[0]}\r\n */\r\n applyFilters(name, ...args) {\r\n this._filters[name]?.forEach((filter) => {\r\n // @ts-expect-error\r\n args[0] = filter.fn.apply(this, args);\r\n });\r\n return args[0];\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @param {T} name\r\n * @param {EventCallback} fn\r\n */\r\n on(name, fn) {\r\n if (!this._listeners[name]) {\r\n this._listeners[name] = [];\r\n }\r\n this._listeners[name]?.push(fn);\r\n\r\n // When binding events to lightbox,\r\n // also bind events to PhotoSwipe Core,\r\n // if it's open.\r\n this.pswp?.on(name, fn);\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @param {T} name\r\n * @param {EventCallback} fn\r\n */\r\n off(name, fn) {\r\n if (this._listeners[name]) {\r\n // @ts-expect-error\r\n this._listeners[name] = this._listeners[name].filter(listener => (fn !== listener));\r\n }\r\n\r\n this.pswp?.off(name, fn);\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @param {T} name\r\n * @param {PhotoSwipeEventsMap[T]} [details]\r\n * @returns {AugmentedEvent}\r\n */\r\n dispatch(name, details) {\r\n if (this.pswp) {\r\n return this.pswp.dispatch(name, details);\r\n }\r\n\r\n const event = /** @type {AugmentedEvent} */ (new PhotoSwipeEvent(name, details));\r\n\r\n this._listeners[name]?.forEach((listener) => {\r\n listener.call(this, event);\r\n });\r\n\r\n return event;\r\n }\r\n}\r\n\r\nexport default Eventable;\r\n","import { createElement, setWidthHeight, toTransformString } from '../util/util.js';\r\n\r\nclass Placeholder {\r\n /**\r\n * @param {string | false} imageSrc\r\n * @param {HTMLElement} container\r\n */\r\n constructor(imageSrc, container) {\r\n // Create placeholder\r\n // (stretched thumbnail or simple div behind the main image)\r\n /** @type {HTMLImageElement | HTMLDivElement | null} */\r\n this.element = createElement(\r\n 'pswp__img pswp__img--placeholder',\r\n imageSrc ? 'img' : 'div',\r\n container\r\n );\r\n\r\n if (imageSrc) {\r\n const imgEl = /** @type {HTMLImageElement} */ (this.element);\r\n imgEl.decoding = 'async';\r\n imgEl.alt = '';\r\n imgEl.src = imageSrc;\r\n imgEl.setAttribute('role', 'presentation');\r\n }\r\n\r\n this.element.setAttribute('aria-hidden', 'true');\r\n }\r\n\r\n /**\r\n * @param {number} width\r\n * @param {number} height\r\n */\r\n setDisplayedSize(width, height) {\r\n if (!this.element) {\r\n return;\r\n }\r\n\r\n if (this.element.tagName === 'IMG') {\r\n // Use transform scale() to modify img placeholder size\r\n // (instead of changing width/height directly).\r\n // This helps with performance, specifically in iOS15 Safari.\r\n setWidthHeight(this.element, 250, 'auto');\r\n this.element.style.transformOrigin = '0 0';\r\n this.element.style.transform = toTransformString(0, 0, width / 250);\r\n } else {\r\n setWidthHeight(this.element, width, height);\r\n }\r\n }\r\n\r\n destroy() {\r\n if (this.element?.parentNode) {\r\n this.element.remove();\r\n }\r\n this.element = null;\r\n }\r\n}\r\n\r\nexport default Placeholder;\r\n","import { createElement, isSafari, LOAD_STATE, setWidthHeight } from '../util/util.js';\r\nimport Placeholder from './placeholder.js';\r\n\r\n/** @typedef {import('./slide.js').default} Slide */\r\n/** @typedef {import('./slide.js').SlideData} SlideData */\r\n/** @typedef {import('../core/base.js').default} PhotoSwipeBase */\r\n/** @typedef {import('../util/util.js').LoadState} LoadState */\r\n\r\nclass Content {\r\n /**\r\n * @param {SlideData} itemData Slide data\r\n * @param {PhotoSwipeBase} instance PhotoSwipe or PhotoSwipeLightbox instance\r\n * @param {number} index\r\n */\r\n constructor(itemData, instance, index) {\r\n this.instance = instance;\r\n this.data = itemData;\r\n this.index = index;\r\n\r\n /** @type {HTMLImageElement | HTMLDivElement | undefined} */\r\n this.element = undefined;\r\n /** @type {Placeholder | undefined} */\r\n this.placeholder = undefined;\r\n /** @type {Slide | undefined} */\r\n this.slide = undefined;\r\n\r\n this.displayedImageWidth = 0;\r\n this.displayedImageHeight = 0;\r\n\r\n this.width = Number(this.data.w) || Number(this.data.width) || 0;\r\n this.height = Number(this.data.h) || Number(this.data.height) || 0;\r\n\r\n this.isAttached = false;\r\n this.hasSlide = false;\r\n this.isDecoding = false;\r\n /** @type {LoadState} */\r\n this.state = LOAD_STATE.IDLE;\r\n\r\n if (this.data.type) {\r\n this.type = this.data.type;\r\n } else if (this.data.src) {\r\n this.type = 'image';\r\n } else {\r\n this.type = 'html';\r\n }\r\n\r\n this.instance.dispatch('contentInit', { content: this });\r\n }\r\n\r\n removePlaceholder() {\r\n if (this.placeholder && !this.keepPlaceholder()) {\r\n // With delay, as image might be loaded, but not rendered\r\n setTimeout(() => {\r\n if (this.placeholder) {\r\n this.placeholder.destroy();\r\n this.placeholder = undefined;\r\n }\r\n }, 1000);\r\n }\r\n }\r\n\r\n /**\r\n * Preload content\r\n *\r\n * @param {boolean} isLazy\r\n * @param {boolean} [reload]\r\n */\r\n load(isLazy, reload) {\r\n if (this.slide && this.usePlaceholder()) {\r\n if (!this.placeholder) {\r\n const placeholderSrc = this.instance.applyFilters(\r\n 'placeholderSrc',\r\n // use image-based placeholder only for the first slide,\r\n // as rendering (even small stretched thumbnail) is an expensive operation\r\n (this.data.msrc && this.slide.isFirstSlide) ? this.data.msrc : false,\r\n this\r\n );\r\n this.placeholder = new Placeholder(\r\n placeholderSrc,\r\n this.slide.container\r\n );\r\n } else {\r\n const placeholderEl = this.placeholder.element;\r\n // Add placeholder to DOM if it was already created\r\n if (placeholderEl && !placeholderEl.parentElement) {\r\n this.slide.container.prepend(placeholderEl);\r\n }\r\n }\r\n }\r\n\r\n if (this.element && !reload) {\r\n return;\r\n }\r\n\r\n if (this.instance.dispatch('contentLoad', { content: this, isLazy }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (this.isImageContent()) {\r\n this.element = createElement('pswp__img', 'img');\r\n // Start loading only after width is defined, as sizes might depend on it.\r\n // Due to Safari feature, we must define sizes before srcset.\r\n if (this.displayedImageWidth) {\r\n this.loadImage(isLazy);\r\n }\r\n } else {\r\n this.element = createElement('pswp__content', 'div');\r\n this.element.innerHTML = this.data.html || '';\r\n }\r\n\r\n if (reload && this.slide) {\r\n this.slide.updateContentSize(true);\r\n }\r\n }\r\n\r\n /**\r\n * Preload image\r\n *\r\n * @param {boolean} isLazy\r\n */\r\n loadImage(isLazy) {\r\n if (!this.isImageContent()\r\n || !this.element\r\n || this.instance.dispatch('contentLoadImage', { content: this, isLazy }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n const imageElement = /** @type HTMLImageElement */ (this.element);\r\n\r\n this.updateSrcsetSizes();\r\n\r\n if (this.data.srcset) {\r\n imageElement.srcset = this.data.srcset;\r\n }\r\n\r\n imageElement.src = this.data.src ?? '';\r\n imageElement.alt = this.data.alt ?? '';\r\n\r\n this.state = LOAD_STATE.LOADING;\r\n\r\n if (imageElement.complete) {\r\n this.onLoaded();\r\n } else {\r\n imageElement.onload = () => {\r\n this.onLoaded();\r\n };\r\n\r\n imageElement.onerror = () => {\r\n this.onError();\r\n };\r\n }\r\n }\r\n\r\n /**\r\n * Assign slide to content\r\n *\r\n * @param {Slide} slide\r\n */\r\n setSlide(slide) {\r\n this.slide = slide;\r\n this.hasSlide = true;\r\n this.instance = slide.pswp;\r\n\r\n // todo: do we need to unset slide?\r\n }\r\n\r\n /**\r\n * Content load success handler\r\n */\r\n onLoaded() {\r\n this.state = LOAD_STATE.LOADED;\r\n\r\n if (this.slide && this.element) {\r\n this.instance.dispatch('loadComplete', { slide: this.slide, content: this });\r\n\r\n // if content is reloaded\r\n if (this.slide.isActive\r\n && this.slide.heavyAppended\r\n && !this.element.parentNode) {\r\n this.append();\r\n this.slide.updateContentSize(true);\r\n }\r\n\r\n if (this.state === LOAD_STATE.LOADED || this.state === LOAD_STATE.ERROR) {\r\n this.removePlaceholder();\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * Content load error handler\r\n */\r\n onError() {\r\n this.state = LOAD_STATE.ERROR;\r\n\r\n if (this.slide) {\r\n this.displayError();\r\n this.instance.dispatch('loadComplete', { slide: this.slide, isError: true, content: this });\r\n this.instance.dispatch('loadError', { slide: this.slide, content: this });\r\n }\r\n }\r\n\r\n /**\r\n * @returns {Boolean} If the content is currently loading\r\n */\r\n isLoading() {\r\n return this.instance.applyFilters(\r\n 'isContentLoading',\r\n this.state === LOAD_STATE.LOADING,\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * @returns {Boolean} If the content is in error state\r\n */\r\n isError() {\r\n return this.state === LOAD_STATE.ERROR;\r\n }\r\n\r\n /**\r\n * @returns {boolean} If the content is image\r\n */\r\n isImageContent() {\r\n return this.type === 'image';\r\n }\r\n\r\n /**\r\n * Update content size\r\n *\r\n * @param {Number} width\r\n * @param {Number} height\r\n */\r\n setDisplayedSize(width, height) {\r\n if (!this.element) {\r\n return;\r\n }\r\n\r\n if (this.placeholder) {\r\n this.placeholder.setDisplayedSize(width, height);\r\n }\r\n\r\n if (this.instance.dispatch(\r\n 'contentResize',\r\n { content: this, width, height }).defaultPrevented\r\n ) {\r\n return;\r\n }\r\n\r\n setWidthHeight(this.element, width, height);\r\n\r\n if (this.isImageContent() && !this.isError()) {\r\n const isInitialSizeUpdate = (!this.displayedImageWidth && width);\r\n\r\n this.displayedImageWidth = width;\r\n this.displayedImageHeight = height;\r\n\r\n if (isInitialSizeUpdate) {\r\n this.loadImage(false);\r\n } else {\r\n this.updateSrcsetSizes();\r\n }\r\n\r\n if (this.slide) {\r\n this.instance.dispatch(\r\n 'imageSizeChange',\r\n { slide: this.slide, width, height, content: this }\r\n );\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * @returns {boolean} If the content can be zoomed\r\n */\r\n isZoomable() {\r\n return this.instance.applyFilters(\r\n 'isContentZoomable',\r\n this.isImageContent() && (this.state !== LOAD_STATE.ERROR),\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * Update image srcset sizes attribute based on width and height\r\n */\r\n updateSrcsetSizes() {\r\n // Handle srcset sizes attribute.\r\n //\r\n // Never lower quality, if it was increased previously.\r\n // Chrome does this automatically, Firefox and Safari do not,\r\n // so we store largest used size in dataset.\r\n if (!this.isImageContent() || !this.element || !this.data.srcset) {\r\n return;\r\n }\r\n\r\n const image = /** @type HTMLImageElement */ (this.element);\r\n const sizesWidth = this.instance.applyFilters(\r\n 'srcsetSizesWidth',\r\n this.displayedImageWidth,\r\n this\r\n );\r\n\r\n if (\r\n !image.dataset.largestUsedSize\r\n || sizesWidth > parseInt(image.dataset.largestUsedSize, 10)\r\n ) {\r\n image.sizes = sizesWidth + 'px';\r\n image.dataset.largestUsedSize = String(sizesWidth);\r\n }\r\n }\r\n\r\n /**\r\n * @returns {boolean} If content should use a placeholder (from msrc by default)\r\n */\r\n usePlaceholder() {\r\n return this.instance.applyFilters(\r\n 'useContentPlaceholder',\r\n this.isImageContent(),\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * Preload content with lazy-loading param\r\n */\r\n lazyLoad() {\r\n if (this.instance.dispatch('contentLazyLoad', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n this.load(true);\r\n }\r\n\r\n /**\r\n * @returns {boolean} If placeholder should be kept after content is loaded\r\n */\r\n keepPlaceholder() {\r\n return this.instance.applyFilters(\r\n 'isKeepingPlaceholder',\r\n this.isLoading(),\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * Destroy the content\r\n */\r\n destroy() {\r\n this.hasSlide = false;\r\n this.slide = undefined;\r\n\r\n if (this.instance.dispatch('contentDestroy', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n this.remove();\r\n\r\n if (this.placeholder) {\r\n this.placeholder.destroy();\r\n this.placeholder = undefined;\r\n }\r\n\r\n if (this.isImageContent() && this.element) {\r\n this.element.onload = null;\r\n this.element.onerror = null;\r\n this.element = undefined;\r\n }\r\n }\r\n\r\n /**\r\n * Display error message\r\n */\r\n displayError() {\r\n if (this.slide) {\r\n let errorMsgEl = createElement('pswp__error-msg', 'div');\r\n errorMsgEl.innerText = this.instance.options?.errorMsg ?? '';\r\n errorMsgEl = /** @type {HTMLDivElement} */ (this.instance.applyFilters(\r\n 'contentErrorElement',\r\n errorMsgEl,\r\n this\r\n ));\r\n this.element = createElement('pswp__content pswp__error-msg-container', 'div');\r\n this.element.appendChild(errorMsgEl);\r\n this.slide.container.innerText = '';\r\n this.slide.container.appendChild(this.element);\r\n this.slide.updateContentSize(true);\r\n this.removePlaceholder();\r\n }\r\n }\r\n\r\n /**\r\n * Append the content\r\n */\r\n append() {\r\n if (this.isAttached || !this.element) {\r\n return;\r\n }\r\n\r\n this.isAttached = true;\r\n\r\n if (this.state === LOAD_STATE.ERROR) {\r\n this.displayError();\r\n return;\r\n }\r\n\r\n if (this.instance.dispatch('contentAppend', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n const supportsDecode = ('decode' in this.element);\r\n\r\n if (this.isImageContent()) {\r\n // Use decode() on nearby slides\r\n //\r\n // Nearby slide images are in DOM and not hidden via display:none.\r\n // However, they are placed offscreen (to the left and right side).\r\n //\r\n // Some browsers do not composite the image until it's actually visible,\r\n // using decode() helps.\r\n //\r\n // You might ask \"why dont you just decode() and then append all images\",\r\n // that's because I want to show image before it's fully loaded,\r\n // as browser can render parts of image while it is loading.\r\n // We do not do this in Safari due to partial loading bug.\r\n if (supportsDecode && this.slide && (!this.slide.isActive || isSafari())) {\r\n this.isDecoding = true;\r\n // purposefully using finally instead of then,\r\n // as if srcset sizes changes dynamically - it may cause decode error\r\n /** @type {HTMLImageElement} */\r\n (this.element).decode().catch(() => {}).finally(() => {\r\n this.isDecoding = false;\r\n this.appendImage();\r\n });\r\n } else {\r\n this.appendImage();\r\n }\r\n } else if (this.slide && !this.element.parentNode) {\r\n this.slide.container.appendChild(this.element);\r\n }\r\n }\r\n\r\n /**\r\n * Activate the slide,\r\n * active slide is generally the current one,\r\n * meaning the user can see it.\r\n */\r\n activate() {\r\n if (this.instance.dispatch('contentActivate', { content: this }).defaultPrevented\r\n || !this.slide) {\r\n return;\r\n }\r\n\r\n if (this.isImageContent() && this.isDecoding && !isSafari()) {\r\n // add image to slide when it becomes active,\r\n // even if it's not finished decoding\r\n this.appendImage();\r\n } else if (this.isError()) {\r\n this.load(false, true); // try to reload\r\n }\r\n\r\n if (this.slide.holderElement) {\r\n this.slide.holderElement.setAttribute('aria-hidden', 'false');\r\n }\r\n }\r\n\r\n /**\r\n * Deactivate the content\r\n */\r\n deactivate() {\r\n this.instance.dispatch('contentDeactivate', { content: this });\r\n if (this.slide && this.slide.holderElement) {\r\n this.slide.holderElement.setAttribute('aria-hidden', 'true');\r\n }\r\n }\r\n\r\n\r\n /**\r\n * Remove the content from DOM\r\n */\r\n remove() {\r\n this.isAttached = false;\r\n\r\n if (this.instance.dispatch('contentRemove', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (this.element && this.element.parentNode) {\r\n this.element.remove();\r\n }\r\n\r\n if (this.placeholder && this.placeholder.element) {\r\n this.placeholder.element.remove();\r\n }\r\n }\r\n\r\n /**\r\n * Append the image content to slide container\r\n */\r\n appendImage() {\r\n if (!this.isAttached) {\r\n return;\r\n }\r\n\r\n if (this.instance.dispatch('contentAppendImage', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n // ensure that element exists and is not already appended\r\n if (this.slide && this.element && !this.element.parentNode) {\r\n this.slide.container.appendChild(this.element);\r\n }\r\n\r\n if (this.state === LOAD_STATE.LOADED || this.state === LOAD_STATE.ERROR) {\r\n this.removePlaceholder();\r\n }\r\n }\r\n}\r\n\r\nexport default Content;\r\n","/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../core/base.js').default} PhotoSwipeBase */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('../slide/slide.js').SlideData} SlideData */\r\n\r\n/**\r\n * @param {PhotoSwipeOptions} options\r\n * @param {PhotoSwipeBase} pswp\r\n * @returns {Point}\r\n */\r\nexport function getViewportSize(options, pswp) {\r\n if (options.getViewportSizeFn) {\r\n const newViewportSize = options.getViewportSizeFn(options, pswp);\r\n if (newViewportSize) {\r\n return newViewportSize;\r\n }\r\n }\r\n\r\n return {\r\n x: document.documentElement.clientWidth,\r\n\r\n // TODO: height on mobile is very incosistent due to toolbar\r\n // find a way to improve this\r\n //\r\n // document.documentElement.clientHeight - doesn't seem to work well\r\n y: window.innerHeight\r\n };\r\n}\r\n\r\n/**\r\n * Parses padding option.\r\n * Supported formats:\r\n *\r\n * // Object\r\n * padding: {\r\n * top: 0,\r\n * bottom: 0,\r\n * left: 0,\r\n * right: 0\r\n * }\r\n *\r\n * // A function that returns the object\r\n * paddingFn: (viewportSize, itemData, index) => {\r\n * return {\r\n * top: 0,\r\n * bottom: 0,\r\n * left: 0,\r\n * right: 0\r\n * };\r\n * }\r\n *\r\n * // Legacy variant\r\n * paddingLeft: 0,\r\n * paddingRight: 0,\r\n * paddingTop: 0,\r\n * paddingBottom: 0,\r\n *\r\n * @param {'left' | 'top' | 'bottom' | 'right'} prop\r\n * @param {PhotoSwipeOptions} options PhotoSwipe options\r\n * @param {Point} viewportSize PhotoSwipe viewport size, for example: { x:800, y:600 }\r\n * @param {SlideData} itemData Data about the slide\r\n * @param {number} index Slide index\r\n * @returns {number}\r\n */\r\nexport function parsePaddingOption(prop, options, viewportSize, itemData, index) {\r\n let paddingValue = 0;\r\n\r\n if (options.paddingFn) {\r\n paddingValue = options.paddingFn(viewportSize, itemData, index)[prop];\r\n } else if (options.padding) {\r\n paddingValue = options.padding[prop];\r\n } else {\r\n const legacyPropName = 'padding' + prop[0].toUpperCase() + prop.slice(1);\r\n // @ts-expect-error\r\n if (options[legacyPropName]) {\r\n // @ts-expect-error\r\n paddingValue = options[legacyPropName];\r\n }\r\n }\r\n\r\n return Number(paddingValue) || 0;\r\n}\r\n\r\n/**\r\n * @param {PhotoSwipeOptions} options\r\n * @param {Point} viewportSize\r\n * @param {SlideData} itemData\r\n * @param {number} index\r\n * @returns {Point}\r\n */\r\nexport function getPanAreaSize(options, viewportSize, itemData, index) {\r\n return {\r\n x: viewportSize.x\r\n - parsePaddingOption('left', options, viewportSize, itemData, index)\r\n - parsePaddingOption('right', options, viewportSize, itemData, index),\r\n y: viewportSize.y\r\n - parsePaddingOption('top', options, viewportSize, itemData, index)\r\n - parsePaddingOption('bottom', options, viewportSize, itemData, index)\r\n };\r\n}\r\n","const MAX_IMAGE_WIDTH = 4000;\r\n\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('../slide/slide.js').SlideData} SlideData */\r\n\r\n/** @typedef {'fit' | 'fill' | number | ((zoomLevelObject: ZoomLevel) => number)} ZoomLevelOption */\r\n\r\n/**\r\n * Calculates zoom levels for specific slide.\r\n * Depends on viewport size and image size.\r\n */\r\nclass ZoomLevel {\r\n /**\r\n * @param {PhotoSwipeOptions} options PhotoSwipe options\r\n * @param {SlideData} itemData Slide data\r\n * @param {number} index Slide index\r\n * @param {PhotoSwipe} [pswp] PhotoSwipe instance, can be undefined if not initialized yet\r\n */\r\n constructor(options, itemData, index, pswp) {\r\n this.pswp = pswp;\r\n this.options = options;\r\n this.itemData = itemData;\r\n this.index = index;\r\n /** @type { Point | null } */\r\n this.panAreaSize = null;\r\n /** @type { Point | null } */\r\n this.elementSize = null;\r\n this.fit = 1;\r\n this.fill = 1;\r\n this.vFill = 1;\r\n this.initial = 1;\r\n this.secondary = 1;\r\n this.max = 1;\r\n this.min = 1;\r\n }\r\n\r\n /**\r\n * Calculate initial, secondary and maximum zoom level for the specified slide.\r\n *\r\n * It should be called when either image or viewport size changes.\r\n *\r\n * @param {number} maxWidth\r\n * @param {number} maxHeight\r\n * @param {Point} panAreaSize\r\n */\r\n update(maxWidth, maxHeight, panAreaSize) {\r\n /** @type {Point} */\r\n const elementSize = { x: maxWidth, y: maxHeight };\r\n this.elementSize = elementSize;\r\n this.panAreaSize = panAreaSize;\r\n\r\n const hRatio = panAreaSize.x / elementSize.x;\r\n const vRatio = panAreaSize.y / elementSize.y;\r\n\r\n this.fit = Math.min(1, hRatio < vRatio ? hRatio : vRatio);\r\n this.fill = Math.min(1, hRatio > vRatio ? hRatio : vRatio);\r\n\r\n // zoom.vFill defines zoom level of the image\r\n // when it has 100% of viewport vertical space (height)\r\n this.vFill = Math.min(1, vRatio);\r\n\r\n this.initial = this._getInitial();\r\n this.secondary = this._getSecondary();\r\n this.max = Math.max(\r\n this.initial,\r\n this.secondary,\r\n this._getMax()\r\n );\r\n\r\n this.min = Math.min(\r\n this.fit,\r\n this.initial,\r\n this.secondary\r\n );\r\n\r\n if (this.pswp) {\r\n this.pswp.dispatch('zoomLevelsUpdate', { zoomLevels: this, slideData: this.itemData });\r\n }\r\n }\r\n\r\n /**\r\n * Parses user-defined zoom option.\r\n *\r\n * @private\r\n * @param {'initial' | 'secondary' | 'max'} optionPrefix Zoom level option prefix (initial, secondary, max)\r\n * @returns { number | undefined }\r\n */\r\n _parseZoomLevelOption(optionPrefix) {\r\n const optionName = /** @type {'initialZoomLevel' | 'secondaryZoomLevel' | 'maxZoomLevel'} */ (\r\n optionPrefix + 'ZoomLevel'\r\n );\r\n const optionValue = this.options[optionName];\r\n\r\n if (!optionValue) {\r\n return;\r\n }\r\n\r\n if (typeof optionValue === 'function') {\r\n return optionValue(this);\r\n }\r\n\r\n if (optionValue === 'fill') {\r\n return this.fill;\r\n }\r\n\r\n if (optionValue === 'fit') {\r\n return this.fit;\r\n }\r\n\r\n return Number(optionValue);\r\n }\r\n\r\n /**\r\n * Get zoom level to which image will be zoomed after double-tap gesture,\r\n * or when user clicks on zoom icon,\r\n * or mouse-click on image itself.\r\n * If you return 1 image will be zoomed to its original size.\r\n *\r\n * @private\r\n * @return {number}\r\n */\r\n _getSecondary() {\r\n let currZoomLevel = this._parseZoomLevelOption('secondary');\r\n\r\n if (currZoomLevel) {\r\n return currZoomLevel;\r\n }\r\n\r\n // 3x of \"fit\" state, but not larger than original\r\n currZoomLevel = Math.min(1, this.fit * 3);\r\n\r\n if (this.elementSize && currZoomLevel * this.elementSize.x > MAX_IMAGE_WIDTH) {\r\n currZoomLevel = MAX_IMAGE_WIDTH / this.elementSize.x;\r\n }\r\n\r\n return currZoomLevel;\r\n }\r\n\r\n /**\r\n * Get initial image zoom level.\r\n *\r\n * @private\r\n * @return {number}\r\n */\r\n _getInitial() {\r\n return this._parseZoomLevelOption('initial') || this.fit;\r\n }\r\n\r\n /**\r\n * Maximum zoom level when user zooms\r\n * via zoom/pinch gesture,\r\n * via cmd/ctrl-wheel or via trackpad.\r\n *\r\n * @private\r\n * @return {number}\r\n */\r\n _getMax() {\r\n // max zoom level is x4 from \"fit state\",\r\n // used for zoom gesture and ctrl/trackpad zoom\r\n return this._parseZoomLevelOption('max') || Math.max(1, this.fit * 4);\r\n }\r\n}\r\n\r\nexport default ZoomLevel;\r\n","import { getViewportSize, getPanAreaSize } from '../util/viewport-size.js';\r\nimport ZoomLevel from './zoom-level.js';\r\n\r\n/** @typedef {import('./content.js').default} Content */\r\n/** @typedef {import('./slide.js').default} Slide */\r\n/** @typedef {import('./slide.js').SlideData} SlideData */\r\n/** @typedef {import('../core/base.js').default} PhotoSwipeBase */\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n\r\nconst MIN_SLIDES_TO_CACHE = 5;\r\n\r\n/**\r\n * Lazy-load an image\r\n * This function is used both by Lightbox and PhotoSwipe core,\r\n * thus it can be called before dialog is opened.\r\n *\r\n * @param {SlideData} itemData Data about the slide\r\n * @param {PhotoSwipeBase} instance PhotoSwipe or PhotoSwipeLightbox instance\r\n * @param {number} index\r\n * @returns {Content} Image that is being decoded or false.\r\n */\r\nexport function lazyLoadData(itemData, instance, index) {\r\n const content = instance.createContentFromData(itemData, index);\r\n /** @type {ZoomLevel | undefined} */\r\n let zoomLevel;\r\n\r\n const { options } = instance;\r\n\r\n // We need to know dimensions of the image to preload it,\r\n // as it might use srcset, and we need to define sizes\r\n if (options) {\r\n zoomLevel = new ZoomLevel(options, itemData, -1);\r\n\r\n let viewportSize;\r\n if (instance.pswp) {\r\n viewportSize = instance.pswp.viewportSize;\r\n } else {\r\n viewportSize = getViewportSize(options, instance);\r\n }\r\n\r\n const panAreaSize = getPanAreaSize(options, viewportSize, itemData, index);\r\n zoomLevel.update(content.width, content.height, panAreaSize);\r\n }\r\n\r\n content.lazyLoad();\r\n\r\n if (zoomLevel) {\r\n content.setDisplayedSize(\r\n Math.ceil(content.width * zoomLevel.initial),\r\n Math.ceil(content.height * zoomLevel.initial)\r\n );\r\n }\r\n\r\n return content;\r\n}\r\n\r\n\r\n/**\r\n * Lazy-loads specific slide.\r\n * This function is used both by Lightbox and PhotoSwipe core,\r\n * thus it can be called before dialog is opened.\r\n *\r\n * By default, it loads image based on viewport size and initial zoom level.\r\n *\r\n * @param {number} index Slide index\r\n * @param {PhotoSwipeBase} instance PhotoSwipe or PhotoSwipeLightbox eventable instance\r\n * @returns {Content | undefined}\r\n */\r\nexport function lazyLoadSlide(index, instance) {\r\n const itemData = instance.getItemData(index);\r\n\r\n if (instance.dispatch('lazyLoadSlide', { index, itemData }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n return lazyLoadData(itemData, instance, index);\r\n}\r\n\r\nclass ContentLoader {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n // Total amount of cached images\r\n this.limit = Math.max(\r\n pswp.options.preload[0] + pswp.options.preload[1] + 1,\r\n MIN_SLIDES_TO_CACHE\r\n );\r\n /** @type {Content[]} */\r\n this._cachedItems = [];\r\n }\r\n\r\n /**\r\n * Lazy load nearby slides based on `preload` option.\r\n *\r\n * @param {number} [diff] Difference between slide indexes that was changed recently, or 0.\r\n */\r\n updateLazy(diff) {\r\n const { pswp } = this;\r\n\r\n if (pswp.dispatch('lazyLoad').defaultPrevented) {\r\n return;\r\n }\r\n\r\n const { preload } = pswp.options;\r\n const isForward = diff === undefined ? true : (diff >= 0);\r\n let i;\r\n\r\n // preload[1] - num items to preload in forward direction\r\n for (i = 0; i <= preload[1]; i++) {\r\n this.loadSlideByIndex(pswp.currIndex + (isForward ? i : (-i)));\r\n }\r\n\r\n // preload[0] - num items to preload in backward direction\r\n for (i = 1; i <= preload[0]; i++) {\r\n this.loadSlideByIndex(pswp.currIndex + (isForward ? (-i) : i));\r\n }\r\n }\r\n\r\n /**\r\n * @param {number} initialIndex\r\n */\r\n loadSlideByIndex(initialIndex) {\r\n const index = this.pswp.getLoopedIndex(initialIndex);\r\n // try to get cached content\r\n let content = this.getContentByIndex(index);\r\n if (!content) {\r\n // no cached content, so try to load from scratch:\r\n content = lazyLoadSlide(index, this.pswp);\r\n // if content can be loaded, add it to cache:\r\n if (content) {\r\n this.addToCache(content);\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * @param {Slide} slide\r\n * @returns {Content}\r\n */\r\n getContentBySlide(slide) {\r\n let content = this.getContentByIndex(slide.index);\r\n if (!content) {\r\n // create content if not found in cache\r\n content = this.pswp.createContentFromData(slide.data, slide.index);\r\n this.addToCache(content);\r\n }\r\n\r\n // assign slide to content\r\n content.setSlide(slide);\r\n\r\n return content;\r\n }\r\n\r\n /**\r\n * @param {Content} content\r\n */\r\n addToCache(content) {\r\n // move to the end of array\r\n this.removeByIndex(content.index);\r\n this._cachedItems.push(content);\r\n\r\n if (this._cachedItems.length > this.limit) {\r\n // Destroy the first content that's not attached\r\n const indexToRemove = this._cachedItems.findIndex((item) => {\r\n return !item.isAttached && !item.hasSlide;\r\n });\r\n if (indexToRemove !== -1) {\r\n const removedItem = this._cachedItems.splice(indexToRemove, 1)[0];\r\n removedItem.destroy();\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * Removes an image from cache, does not destroy() it, just removes.\r\n *\r\n * @param {number} index\r\n */\r\n removeByIndex(index) {\r\n const indexToRemove = this._cachedItems.findIndex(item => item.index === index);\r\n if (indexToRemove !== -1) {\r\n this._cachedItems.splice(indexToRemove, 1);\r\n }\r\n }\r\n\r\n /**\r\n * @param {number} index\r\n * @returns {Content | undefined}\r\n */\r\n getContentByIndex(index) {\r\n return this._cachedItems.find(content => content.index === index);\r\n }\r\n\r\n destroy() {\r\n this._cachedItems.forEach(content => content.destroy());\r\n this._cachedItems = [];\r\n }\r\n}\r\n\r\nexport default ContentLoader;\r\n","import Eventable from './eventable.js';\r\nimport { getElementsFromOption } from '../util/util.js';\r\nimport Content from '../slide/content.js';\r\nimport { lazyLoadData } from '../slide/loader.js';\r\n\r\n/** @typedef {import(\"../photoswipe.js\").default} PhotoSwipe */\r\n/** @typedef {import(\"../slide/slide.js\").SlideData} SlideData */\r\n\r\n/**\r\n * PhotoSwipe base class that can retrieve data about every slide.\r\n * Shared by PhotoSwipe Core and PhotoSwipe Lightbox\r\n */\r\nclass PhotoSwipeBase extends Eventable {\r\n /**\r\n * Get total number of slides\r\n *\r\n * @returns {number}\r\n */\r\n getNumItems() {\r\n let numItems = 0;\r\n const dataSource = this.options?.dataSource;\r\n\r\n if (dataSource && 'length' in dataSource) {\r\n // may be an array or just object with length property\r\n numItems = dataSource.length;\r\n } else if (dataSource && 'gallery' in dataSource) {\r\n // query DOM elements\r\n if (!dataSource.items) {\r\n dataSource.items = this._getGalleryDOMElements(dataSource.gallery);\r\n }\r\n\r\n if (dataSource.items) {\r\n numItems = dataSource.items.length;\r\n }\r\n }\r\n\r\n // legacy event, before filters were introduced\r\n const event = this.dispatch('numItems', {\r\n dataSource,\r\n numItems\r\n });\r\n return this.applyFilters('numItems', event.numItems, dataSource);\r\n }\r\n\r\n /**\r\n * @param {SlideData} slideData\r\n * @param {number} index\r\n * @returns {Content}\r\n */\r\n createContentFromData(slideData, index) {\r\n return new Content(slideData, this, index);\r\n }\r\n\r\n /**\r\n * Get item data by index.\r\n *\r\n * \"item data\" should contain normalized information that PhotoSwipe needs to generate a slide.\r\n * For example, it may contain properties like\r\n * `src`, `srcset`, `w`, `h`, which will be used to generate a slide with image.\r\n *\r\n * @param {number} index\r\n * @returns {SlideData}\r\n */\r\n getItemData(index) {\r\n const dataSource = this.options?.dataSource;\r\n /** @type {SlideData | HTMLElement} */\r\n let dataSourceItem = {};\r\n if (Array.isArray(dataSource)) {\r\n // Datasource is an array of elements\r\n dataSourceItem = dataSource[index];\r\n } else if (dataSource && 'gallery' in dataSource) {\r\n // dataSource has gallery property,\r\n // thus it was created by Lightbox, based on\r\n // gallery and children options\r\n\r\n // query DOM elements\r\n if (!dataSource.items) {\r\n dataSource.items = this._getGalleryDOMElements(dataSource.gallery);\r\n }\r\n\r\n dataSourceItem = dataSource.items[index];\r\n }\r\n\r\n let itemData = dataSourceItem;\r\n\r\n if (itemData instanceof Element) {\r\n itemData = this._domElementToItemData(itemData);\r\n }\r\n\r\n // Dispatching the itemData event,\r\n // it's a legacy verion before filters were introduced\r\n const event = this.dispatch('itemData', {\r\n itemData: itemData || {},\r\n index\r\n });\r\n\r\n return this.applyFilters('itemData', event.itemData, index);\r\n }\r\n\r\n /**\r\n * Get array of gallery DOM elements,\r\n * based on childSelector and gallery element.\r\n *\r\n * @param {HTMLElement} galleryElement\r\n * @returns {HTMLElement[]}\r\n */\r\n _getGalleryDOMElements(galleryElement) {\r\n if (this.options?.children || this.options?.childSelector) {\r\n return getElementsFromOption(\r\n this.options.children,\r\n this.options.childSelector,\r\n galleryElement\r\n ) || [];\r\n }\r\n\r\n return [galleryElement];\r\n }\r\n\r\n /**\r\n * Converts DOM element to item data object.\r\n *\r\n * @param {HTMLElement} element DOM element\r\n * @returns {SlideData}\r\n */\r\n _domElementToItemData(element) {\r\n /** @type {SlideData} */\r\n const itemData = {\r\n element\r\n };\r\n\r\n const linkEl = /** @type {HTMLAnchorElement} */ (\r\n element.tagName === 'A'\r\n ? element\r\n : element.querySelector('a')\r\n );\r\n\r\n if (linkEl) {\r\n // src comes from data-pswp-src attribute,\r\n // if it's empty link href is used\r\n itemData.src = linkEl.dataset.pswpSrc || linkEl.href;\r\n\r\n if (linkEl.dataset.pswpSrcset) {\r\n itemData.srcset = linkEl.dataset.pswpSrcset;\r\n }\r\n\r\n itemData.width = linkEl.dataset.pswpWidth ? parseInt(linkEl.dataset.pswpWidth, 10) : 0;\r\n itemData.height = linkEl.dataset.pswpHeight ? parseInt(linkEl.dataset.pswpHeight, 10) : 0;\r\n\r\n // support legacy w & h properties\r\n itemData.w = itemData.width;\r\n itemData.h = itemData.height;\r\n\r\n if (linkEl.dataset.pswpType) {\r\n itemData.type = linkEl.dataset.pswpType;\r\n }\r\n\r\n const thumbnailEl = element.querySelector('img');\r\n\r\n if (thumbnailEl) {\r\n // msrc is URL to placeholder image that's displayed before large image is loaded\r\n // by default it's displayed only for the first slide\r\n itemData.msrc = thumbnailEl.currentSrc || thumbnailEl.src;\r\n itemData.alt = thumbnailEl.getAttribute('alt') ?? '';\r\n }\r\n\r\n if (linkEl.dataset.pswpCropped || linkEl.dataset.cropped) {\r\n itemData.thumbCropped = true;\r\n }\r\n }\r\n\r\n return this.applyFilters('domItemData', itemData, element, linkEl);\r\n }\r\n\r\n /**\r\n * Lazy-load by slide data\r\n *\r\n * @param {SlideData} itemData Data about the slide\r\n * @param {number} index\r\n * @returns {Content} Image that is being decoded or false.\r\n */\r\n lazyLoadData(itemData, index) {\r\n return lazyLoadData(itemData, this, index);\r\n }\r\n}\r\n\r\nexport default PhotoSwipeBase;\r\n","import {\r\n specialKeyUsed,\r\n getElementsFromOption,\r\n isPswpClass\r\n} from '../util/util.js';\r\n\r\nimport PhotoSwipeBase from '../core/base.js';\r\nimport { lazyLoadSlide } from '../slide/loader.js';\r\n\r\n/**\r\n * @template T\r\n * @typedef {import('../types.js').Type} Type\r\n */\r\n\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../photoswipe.js').DataSource} DataSource */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('../slide/content.js').default} Content */\r\n/** @typedef {import('../core/eventable.js').PhotoSwipeEventsMap} PhotoSwipeEventsMap */\r\n/** @typedef {import('../core/eventable.js').PhotoSwipeFiltersMap} PhotoSwipeFiltersMap */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {import('../core/eventable.js').EventCallback} EventCallback\r\n */\r\n\r\n/**\r\n * PhotoSwipe Lightbox\r\n *\r\n * - If user has unsupported browser it falls back to default browser action (just opens URL)\r\n * - Binds click event to links that should open PhotoSwipe\r\n * - parses DOM strcture for PhotoSwipe (retrieves large image URLs and sizes)\r\n * - Initializes PhotoSwipe\r\n *\r\n *\r\n * Loader options use the same object as PhotoSwipe, and supports such options:\r\n *\r\n * gallery - Element | Element[] | NodeList | string selector for the gallery element\r\n * children - Element | Element[] | NodeList | string selector for the gallery children\r\n *\r\n */\r\nclass PhotoSwipeLightbox extends PhotoSwipeBase {\r\n /**\r\n * @param {PhotoSwipeOptions} [options]\r\n */\r\n constructor(options) {\r\n super();\r\n /** @type {PhotoSwipeOptions} */\r\n this.options = options || {};\r\n this._uid = 0;\r\n this.shouldOpen = false;\r\n /**\r\n * @private\r\n * @type {Content | undefined}\r\n */\r\n this._preloadedContent = undefined;\r\n\r\n this.onThumbnailsClick = this.onThumbnailsClick.bind(this);\r\n }\r\n\r\n /**\r\n * Initialize lightbox, should be called only once.\r\n * It's not included in the main constructor, so you may bind events before it.\r\n */\r\n init() {\r\n // Bind click events to each gallery\r\n getElementsFromOption(this.options.gallery, this.options.gallerySelector)\r\n .forEach((galleryElement) => {\r\n galleryElement.addEventListener('click', this.onThumbnailsClick, false);\r\n });\r\n }\r\n\r\n /**\r\n * @param {MouseEvent} e\r\n */\r\n onThumbnailsClick(e) {\r\n // Exit and allow default browser action if:\r\n if (specialKeyUsed(e) // ... if clicked with a special key (ctrl/cmd...)\r\n || window.pswp) { // ... if PhotoSwipe is already open\r\n return;\r\n }\r\n\r\n // If both clientX and clientY are 0 or not defined,\r\n // the event is likely triggered by keyboard,\r\n // so we do not pass the initialPoint\r\n //\r\n // Note that some screen readers emulate the mouse position,\r\n // so it's not the ideal way to detect them.\r\n //\r\n /** @type {Point | null} */\r\n let initialPoint = { x: e.clientX, y: e.clientY };\r\n\r\n if (!initialPoint.x && !initialPoint.y) {\r\n initialPoint = null;\r\n }\r\n\r\n let clickedIndex = this.getClickedIndex(e);\r\n clickedIndex = this.applyFilters('clickedIndex', clickedIndex, e, this);\r\n /** @type {DataSource} */\r\n const dataSource = {\r\n gallery: /** @type {HTMLElement} */ (e.currentTarget)\r\n };\r\n\r\n if (clickedIndex >= 0) {\r\n e.preventDefault();\r\n this.loadAndOpen(clickedIndex, dataSource, initialPoint);\r\n }\r\n }\r\n\r\n /**\r\n * Get index of gallery item that was clicked.\r\n *\r\n * @param {MouseEvent} e click event\r\n * @returns {number}\r\n */\r\n getClickedIndex(e) {\r\n // legacy option\r\n if (this.options.getClickedIndexFn) {\r\n return this.options.getClickedIndexFn.call(this, e);\r\n }\r\n\r\n const clickedTarget = /** @type {HTMLElement} */ (e.target);\r\n const childElements = getElementsFromOption(\r\n this.options.children,\r\n this.options.childSelector,\r\n /** @type {HTMLElement} */ (e.currentTarget)\r\n );\r\n const clickedChildIndex = childElements.findIndex(\r\n child => child === clickedTarget || child.contains(clickedTarget)\r\n );\r\n\r\n if (clickedChildIndex !== -1) {\r\n return clickedChildIndex;\r\n } else if (this.options.children || this.options.childSelector) {\r\n // click wasn't on a child element\r\n return -1;\r\n }\r\n\r\n // There is only one item (which is the gallery)\r\n return 0;\r\n }\r\n\r\n /**\r\n * Load and open PhotoSwipe\r\n *\r\n * @param {number} index\r\n * @param {DataSource} [dataSource]\r\n * @param {Point | null} [initialPoint]\r\n * @returns {boolean}\r\n */\r\n loadAndOpen(index, dataSource, initialPoint) {\r\n // Check if the gallery is already open\r\n if (window.pswp || !this.options) {\r\n return false;\r\n }\r\n\r\n // Use the first gallery element if dataSource is not provided\r\n if (!dataSource && this.options.gallery && this.options.children) {\r\n const galleryElements = getElementsFromOption(this.options.gallery);\r\n if (galleryElements[0]) {\r\n dataSource = {\r\n gallery: galleryElements[0]\r\n };\r\n }\r\n }\r\n\r\n // set initial index\r\n this.options.index = index;\r\n\r\n // define options for PhotoSwipe constructor\r\n this.options.initialPointerPos = initialPoint;\r\n\r\n this.shouldOpen = true;\r\n this.preload(index, dataSource);\r\n return true;\r\n }\r\n\r\n /**\r\n * Load the main module and the slide content by index\r\n *\r\n * @param {number} index\r\n * @param {DataSource} [dataSource]\r\n */\r\n preload(index, dataSource) {\r\n const { options } = this;\r\n\r\n if (dataSource) {\r\n options.dataSource = dataSource;\r\n }\r\n\r\n // Add the main module\r\n /** @type {Promise>[]} */\r\n const promiseArray = [];\r\n\r\n const pswpModuleType = typeof options.pswpModule;\r\n if (isPswpClass(options.pswpModule)) {\r\n promiseArray.push(Promise.resolve(/** @type {Type} */ (options.pswpModule)));\r\n } else if (pswpModuleType === 'string') {\r\n throw new Error('pswpModule as string is no longer supported');\r\n } else if (pswpModuleType === 'function') {\r\n promiseArray.push(/** @type {() => Promise>} */ (options.pswpModule)());\r\n } else {\r\n throw new Error('pswpModule is not valid');\r\n }\r\n\r\n // Add custom-defined promise, if any\r\n if (typeof options.openPromise === 'function') {\r\n // allow developers to perform some task before opening\r\n promiseArray.push(options.openPromise());\r\n }\r\n\r\n if (options.preloadFirstSlide !== false && index >= 0) {\r\n this._preloadedContent = lazyLoadSlide(index, this);\r\n }\r\n\r\n // Wait till all promises resolve and open PhotoSwipe\r\n const uid = ++this._uid;\r\n Promise.all(promiseArray).then((iterableModules) => {\r\n if (this.shouldOpen) {\r\n const mainModule = iterableModules[0];\r\n this._openPhotoswipe(mainModule, uid);\r\n }\r\n });\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {Type | { default: Type }} module\r\n * @param {number} uid\r\n */\r\n _openPhotoswipe(module, uid) {\r\n // Cancel opening if UID doesn't match the current one\r\n // (if user clicked on another gallery item before current was loaded).\r\n //\r\n // Or if shouldOpen flag is set to false\r\n // (developer may modify it via public API)\r\n if (uid !== this._uid && this.shouldOpen) {\r\n return;\r\n }\r\n\r\n this.shouldOpen = false;\r\n\r\n // PhotoSwipe is already open\r\n if (window.pswp) {\r\n return;\r\n }\r\n\r\n /**\r\n * Pass data to PhotoSwipe and open init\r\n *\r\n * @type {PhotoSwipe}\r\n */\r\n const pswp = typeof module === 'object'\r\n ? new module.default(this.options) // eslint-disable-line\r\n : new module(this.options); // eslint-disable-line\r\n\r\n this.pswp = pswp;\r\n window.pswp = pswp;\r\n\r\n // map listeners from Lightbox to PhotoSwipe Core\r\n /** @type {(keyof PhotoSwipeEventsMap)[]} */\r\n (Object.keys(this._listeners)).forEach((name) => {\r\n this._listeners[name]?.forEach((fn) => {\r\n pswp.on(name, /** @type {EventCallback} */(fn));\r\n });\r\n });\r\n\r\n // same with filters\r\n /** @type {(keyof PhotoSwipeFiltersMap)[]} */\r\n (Object.keys(this._filters)).forEach((name) => {\r\n this._filters[name]?.forEach((filter) => {\r\n pswp.addFilter(name, filter.fn, filter.priority);\r\n });\r\n });\r\n\r\n if (this._preloadedContent) {\r\n pswp.contentLoader.addToCache(this._preloadedContent);\r\n this._preloadedContent = undefined;\r\n }\r\n\r\n pswp.on('destroy', () => {\r\n // clean up public variables\r\n this.pswp = undefined;\r\n delete window.pswp;\r\n });\r\n\r\n pswp.init();\r\n }\r\n\r\n /**\r\n * Unbinds all events, closes PhotoSwipe if it's open.\r\n */\r\n destroy() {\r\n this.pswp?.destroy();\r\n\r\n this.shouldOpen = false;\r\n this._listeners = {};\r\n\r\n getElementsFromOption(this.options.gallery, this.options.gallerySelector)\r\n .forEach((galleryElement) => {\r\n galleryElement.removeEventListener('click', this.onThumbnailsClick, false);\r\n });\r\n }\r\n}\r\n\r\nexport default PhotoSwipeLightbox;\r\n","import {SizedModel} from './galleries/AbstractGallery';\n\ninterface ImageRatioInfo {\n ratio: number;\n cropped: boolean;\n}\n\nexport interface RatioLimits {\n min?: number;\n max?: number;\n}\n\nexport function getNextIcon(document: Document): SVGSVGElement {\n // Here we cannot use `SVGSVGElement.innerHTML`, because it is not available in SSR.\n // So instead we use `HTMLDivElement.innerHTML`, and get the SVG inside that div.\n // see: https://github.com/fgnass/domino/blob/12a5f67136a0ac10e3fa1649b8787ba3b309e9a7/lib/Element.js#L95\n const div = document.createElement('div');\n div.innerHTML =\n '';\n\n return div.querySelector('svg')!;\n}\n\nexport function getImageRatio(model: SizedModel, ratioLimits?: RatioLimits): number {\n let ratio = Number(model.enlargedWidth) / Number(model.enlargedHeight);\n\n if (ratioLimits) {\n if (ratioLimits.min && ratio < ratioLimits.min) {\n ratio = ratioLimits.min;\n } else if (ratioLimits.max && ratio > ratioLimits.max) {\n ratio = ratioLimits.max;\n }\n }\n\n return ratio;\n}\n\nexport function getImageRatioAndIfCropped(model: SizedModel, ratioLimits?: RatioLimits): ImageRatioInfo {\n let ratio = Number(model.enlargedWidth) / Number(model.enlargedHeight);\n let cropped = false;\n\n if (ratioLimits) {\n if (ratioLimits.min && ratio < ratioLimits.min) {\n ratio = ratioLimits.min;\n cropped = true;\n } else if (ratioLimits.max && ratio > ratioLimits.max) {\n ratio = ratioLimits.max;\n cropped = true;\n }\n }\n\n return {ratio: ratio, cropped: cropped};\n}\n\n/**\n * Cleans HTML, and returns only the plain text and `
` from all eventual tags\n */\nexport function sanitizeHtml(term: string | undefined): string {\n return term ? term.replace(/<(?!\\s*br\\s*\\/?)[^>]*>/gi, '') : '';\n}\n","import {ModelAttributes} from './galleries/AbstractGallery';\nimport {sanitizeHtml} from './Utility';\n\nexport enum LabelVisibility {\n HOVER = 'hover',\n NEVER = 'never',\n ALWAYS = 'always',\n}\n\nexport declare interface ItemOptions {\n /**\n * Enables ability to zoom images in photoswipe\n */\n lightbox?: boolean;\n\n /**\n * Add a checkbox to select image\n */\n selectable?: boolean;\n\n /**\n * Activable emits 'activate' event when link is not provided. It takes place where the link used to be :\n * in caption or in image if lightbox is false\n */\n activable?: boolean;\n gap?: number;\n labelVisibility?: LabelVisibility;\n}\n\nexport type ItemActivateEventDetail = {\n event: MouseEvent | KeyboardEvent;\n item: Item;\n};\n\nexport class Item {\n /**\n * Cleaned title, used for label / button\n */\n public readonly sanitizedTitle: string;\n /**\n * Reference to the select button\n */\n private _checkbox: HTMLButtonElement | null = null;\n /**\n * Element referring the \"button\" containing the label\n */\n private figcaption: HTMLElement | null = null;\n\n /**\n *\n * @param model Contains the source data given for an item (e.g. object instance from database with id etc...)\n */\n public constructor(\n private readonly document: Document,\n private readonly options: ItemOptions,\n public readonly model: Model,\n ) {\n this.sanitizedTitle = sanitizeHtml(model.title);\n }\n\n /**\n * Actual row index in the list\n */\n private _row!: number;\n\n get row(): number {\n return this._row;\n }\n\n set row(value: number) {\n this._row = value;\n }\n\n /**\n * Computed size (real used size)\n */\n private _width!: number;\n\n get width(): number {\n return this._width;\n }\n\n set width(value: number) {\n this._width = value;\n }\n\n private _height!: number;\n\n get height(): number {\n return this._height;\n }\n\n set height(value: number) {\n this._height = value;\n }\n\n private _cropped = true;\n\n /* istanbul ignore next */\n get cropped(): boolean {\n return this._cropped;\n }\n\n set cropped(value: boolean) {\n this._cropped = value;\n }\n\n /**\n * Wherever item is selected or not\n */\n private _selected = false;\n\n /* istanbul ignore next */\n get selected(): boolean {\n return this._selected;\n }\n\n /**\n * Item root element reference (figure)\n */\n private _rootElement: HTMLElement | null = null;\n\n /* istanbul ignore next */\n get rootElement(): HTMLElement | null {\n return this._rootElement;\n }\n\n /* istanbul ignore next */\n get checkbox(): HTMLButtonElement | null {\n return this._checkbox;\n }\n\n /* istanbul ignore next */\n get enlargedWidth(): number {\n return this.model.enlargedWidth;\n }\n\n /* istanbul ignore next */\n get enlargedHeight(): number {\n return this.model.enlargedHeight;\n }\n\n /**\n * Create DOM elements according to element raw data (thumbnail and enlarged urls)\n * Also apply border-radius at this level because it never changed threw time\n *\n *\n * Base structure is always the same :\n *\n *
\n * \n *
\n *
\n *\n * But depending on settings, we can add inside
or wrap around
\n */\n public init(): HTMLElement {\n // Sources\n const figure = this.getFigure();\n const caption = this.getEmptyCaption();\n const image = this.getImage(!!caption);\n\n // Prepare contextual containers\n let root = null;\n const link = this.getEmptyLinkOrButton();\n let zoomableElement: HTMLElement | null = null;\n\n // Define and assign roles for each situation\n if (this.options.lightbox && caption && link) {\n root = figure;\n zoomableElement = image;\n link.innerHTML = this.sanitizedTitle;\n figure.appendChild(image);\n caption.appendChild(link);\n caption.classList.add('link');\n } else if (this.options.lightbox && caption && !link) {\n root = figure;\n caption.innerHTML = this.sanitizedTitle;\n figure.appendChild(image);\n zoomableElement = figure;\n } else if (this.options.lightbox && !caption && link) {\n root = figure;\n zoomableElement = figure;\n figure.appendChild(image);\n console.warn(\n 'Link or activation are ignored when lightbox is true and there is no caption because there is no element to support it',\n );\n } else if (this.options.lightbox && !caption && !link) {\n root = figure;\n zoomableElement = figure;\n figure.appendChild(image);\n } else if (!this.options.lightbox && caption && link) {\n root = figure;\n figure.appendChild(image);\n caption.appendChild(link);\n caption.classList.add('link');\n link.innerHTML = this.sanitizedTitle;\n } else if (!this.options.lightbox && caption && !link) {\n root = figure;\n figure.appendChild(image);\n caption.innerHTML = this.sanitizedTitle;\n } else if (!this.options.lightbox && !caption && link) {\n root = link;\n figure.appendChild(image);\n link.appendChild(figure);\n } else if (!this.options.lightbox && !caption && !link) {\n root = figure;\n figure.appendChild(image);\n }\n\n this._rootElement = root || figure;\n this._rootElement.setAttribute('role', 'group');\n this._rootElement.classList.add('root');\n\n const checkbox = this.getCheckbox();\n [caption, checkbox].filter(c => !!c).forEach(c => figure.appendChild(c));\n this.handleZoom(zoomableElement);\n this.style();\n\n return this._rootElement;\n }\n\n public setLabelHover(activate: boolean): void {\n const className = 'hover';\n if (activate) {\n this.options.labelVisibility = LabelVisibility.HOVER;\n this.figcaption?.classList.add(className);\n } else {\n this.options.labelVisibility = LabelVisibility.ALWAYS;\n this.figcaption?.classList.remove(className);\n }\n }\n\n /**\n * Use computed (organized) data to apply style (size and margin) to elements on DOM\n * Does not apply border-radius because is used to restyle data on browser resize, and border-radius don't change.\n */\n public style(): void {\n if (!this._rootElement) {\n return;\n }\n\n this._rootElement.style.width = String(this.width + 'px');\n this._rootElement.style.height = String(this.height + 'px');\n }\n\n private emitSelectEvent(): void {\n const event = new CustomEvent>('select', {detail: this});\n this._rootElement?.dispatchEvent(event);\n }\n\n public toggleSelect(): void {\n if (this._selected) {\n this.unselect();\n } else {\n this.select();\n }\n }\n\n private throwNotSelectableError(): void {\n if (!this.options.selectable) {\n throw Error('Gallery is not selectable');\n }\n }\n\n public select(): void {\n this.throwNotSelectableError();\n this._selected = true;\n this._rootElement?.classList.add('selected');\n this.updateAriaSelectedStatus();\n this.emitSelectEvent();\n }\n\n public unselect(): void {\n this.throwNotSelectableError();\n this._selected = false;\n this._rootElement?.classList.remove('selected');\n this.updateAriaSelectedStatus();\n this.emitSelectEvent();\n }\n\n public remove(): void {\n this._rootElement?.parentNode?.removeChild(this._rootElement);\n }\n\n private updateAriaSelectedStatus(): void {\n this._checkbox?.setAttribute('aria-checked', String(this._selected));\n this._checkbox?.setAttribute('aria-label', this._selected ? 'Unselect' : 'Select');\n }\n\n private getEmptyLinkOrButton(): HTMLElement | HTMLButtonElement | null {\n if (this.model.link) {\n const link = this.document.createElement('a');\n link.setAttribute('href', this.model.link);\n\n if (this.model.linkTarget) {\n link.setAttribute('target', this.model.linkTarget);\n }\n\n return link;\n } else if (this.options.activable) {\n const button = this.document.createElement('button');\n button.classList.add('activation');\n button.setAttribute('tabindex', '0');\n this.handleActivation(button);\n\n return button;\n }\n\n return null;\n }\n\n /**\n * Label is visible if options mention hover or always\n * @private\n */\n private showLabel(): boolean {\n let showLabel = false;\n\n const showLabelValues = [LabelVisibility.ALWAYS, LabelVisibility.HOVER];\n if (\n this.sanitizedTitle &&\n this.options.labelVisibility &&\n showLabelValues.includes(this.options.labelVisibility)\n ) {\n showLabel = true;\n }\n\n return showLabel;\n }\n\n private getFigure(): HTMLElement {\n const figure = this.document.createElement('figure');\n figure.classList.add('figure');\n figure.setAttribute('role', 'group');\n\n if (this.model.color) {\n figure.style.backgroundColor = this.model.color + '11';\n }\n\n return figure;\n }\n\n private getImage(hasCaption: boolean): HTMLImageElement {\n const image = this.document.createElement('img');\n image.setAttribute('src', this.model.thumbnailSrc);\n image.style.objectFit = this.model.objectFit || 'cover';\n image.style.objectPosition = this.model.objectPosition || 'center';\n image.classList.add('image');\n image.setAttribute('loading', 'lazy');\n image.addEventListener('load', () => this._rootElement?.classList.add('loaded'));\n\n // If alt is provided and different from title, set it on mage\n // If title, but no alt neither caption, set title as alt attribute on image\n if (this.model.alt && this.model.alt !== this.sanitizedTitle) {\n image.setAttribute('alt', this.model.alt);\n } else if (!hasCaption && this.sanitizedTitle) {\n image.setAttribute('alt', this.sanitizedTitle);\n }\n\n return image;\n }\n\n private getEmptyCaption(): HTMLElement | null {\n if (!this.showLabel()) {\n return null;\n }\n\n const caption = this.document.createElement('figcaption');\n caption.classList.add('caption');\n caption.classList.add('title');\n\n if (this.options.labelVisibility === LabelVisibility.HOVER) {\n caption.classList.add('hover');\n }\n\n this.figcaption = caption;\n return caption;\n }\n\n private getCheckbox(): HTMLButtonElement | null {\n if (!this.options.selectable) {\n return null;\n }\n\n const checkbox = this.document.createElement('button') as HTMLButtonElement;\n checkbox.tabIndex = 0;\n checkbox.classList.add('select-btn');\n checkbox.setAttribute('role', 'checkbox');\n\n const marker = this.document.createElement('div');\n marker.classList.add('marker');\n checkbox.appendChild(marker);\n\n const handleCheckboxAction = (e: Event) => {\n e.stopPropagation();\n e.preventDefault();\n this.toggleSelect();\n };\n\n checkbox.addEventListener('click', handleCheckboxAction);\n checkbox.addEventListener('keydown', e => {\n if (e.key === 'Enter' || e.key === ' ') {\n handleCheckboxAction(e);\n }\n });\n this._checkbox = checkbox;\n this.updateAriaSelectedStatus();\n\n if (this.model.selected) {\n this.select();\n } else {\n this.unselect();\n }\n\n return checkbox;\n }\n\n private handleActivation(element: HTMLElement): void {\n element.setAttribute('aria-label', 'activate item');\n const activate = (ev: MouseEvent | KeyboardEvent) => {\n const data: ItemActivateEventDetail = {item: this, event: ev};\n const activableEvent = new CustomEvent>('activate', {detail: data});\n this._rootElement?.dispatchEvent(activableEvent);\n };\n element.addEventListener('click', activate);\n element.addEventListener('keydown', e => {\n if (e.key === 'Enter' || e.key === ' ') {\n activate(e);\n }\n });\n }\n\n private handleZoom(element: HTMLElement | null): void {\n if (!element) {\n return;\n }\n\n if (element) {\n element.tabIndex = 0;\n element.setAttribute('aria-label', 'zoom');\n element.setAttribute('role', 'button');\n element.classList.add('zoomable');\n const handleZoom = () => {\n const event = new CustomEvent>('zoom', {detail: this});\n this._rootElement?.dispatchEvent(event);\n };\n\n element.addEventListener('click', handleZoom);\n element.addEventListener('keydown', e => {\n if (e.key === 'Enter' || e.key === ' ') {\n e.preventDefault();\n handleZoom();\n }\n });\n }\n }\n}\n","import {debounce, pick} from 'es-toolkit';\nimport {defaultsDeep} from 'es-toolkit/compat';\nimport PhotoSwipe, {PhotoSwipeOptions, SlideData} from 'photoswipe';\nimport PhotoSwipeLightbox from 'photoswipe/lightbox';\nimport 'photoswipe/dist/photoswipe.css';\nimport {Item, ItemActivateEventDetail, ItemOptions, LabelVisibility} from '../Item';\nimport {getNextIcon} from '../Utility';\n\nexport type ObjectFit = 'fill' | 'contain' | 'cover' | 'none' | 'scale-down' | 'inherit' | 'initial' | 'unset';\n\nexport type ObjectPosition =\n | 'center'\n | 'top'\n | 'bottom'\n | 'left'\n | 'right'\n | 'top left'\n | 'top right'\n | 'top center'\n | 'bottom left'\n | 'bottom right'\n | 'bottom center'\n | 'center left'\n | 'center right'\n | string;\n\n/**\n * A map of all possible event and the structure of their details\n */\nexport interface CustomEventDetailMap {\n activate: {item: T; event: MouseEvent | KeyboardEvent};\n 'item-added-to-dom': T;\n 'item-displayed': T;\n pagination: {offset: number; limit: number};\n select: T[];\n}\n\n/**\n * Augment the global namespace with our custom events\n * See: https://github.com/Microsoft/TypeScript/issues/28357\n */\ndeclare global {\n interface HTMLElementEventMap {\n activate: CustomEvent;\n 'item-added-to-dom': CustomEvent;\n 'item-displayed': CustomEvent;\n pagination: CustomEvent;\n select: CustomEvent;\n }\n}\n\nexport interface SizedModel {\n /**\n * Height in pixels of the enlarged version the image\n * If photoswipe is used, the size of the photoswipe enlarged image is required\n * If photoswipe is not used, any size that match the ratio is enough\n */\n enlargedWidth: number;\n\n /**\n * Width in pixels of the enlarged version the image\n * If photoswipe is used, the size of the photoswipe enlarged image is required\n * If photoswipe is not used, any size that match the ratio is enough\n */\n enlargedHeight: number;\n}\n\nexport interface ModelAttributes extends SizedModel {\n /**\n * Source link for thumbnail image\n */\n thumbnailSrc: string;\n\n /**\n * Source link for enlarged (photoswipe) image\n */\n enlargedSrc?: string;\n\n /**\n * Label of item (or button)\n */\n title?: string;\n\n /**\n * Href link\n */\n link?: string;\n\n /**\n * a href target attribute\n */\n linkTarget?: '_blank' | '_self' | '_parent' | '_top';\n\n /**\n * Hex color\n */\n color?: string;\n\n /**\n * If item is selected\n */\n selected?: boolean;\n\n /**\n * Background size, default : cover\n */\n objectFit?: ObjectFit;\n\n /**\n * Background position, default : center\n */\n objectPosition?: ObjectPosition;\n\n /**\n * Short text describing specifically the image\n */\n alt?: string;\n}\n\nexport interface GalleryOptions extends ItemOptions {\n rowsPerPage?: number;\n minRowsAtStart?: number;\n infiniteScrollOffset?: number;\n photoSwipeOptions?: PhotoSwipeOptions;\n photoSwipePluginsInitFn?: ((lighbox: PhotoSwipeLightbox) => void) | null;\n ssr?: {\n /**\n * In SSR mode, if the gallery width cannot be computed, it will fallback to this value\n */\n galleryWidth: number;\n };\n}\n\nexport abstract class AbstractGallery {\n /**\n * Default options\n */\n protected options: Required = {\n gap: 3,\n rowsPerPage: 0,\n labelVisibility: LabelVisibility.HOVER,\n lightbox: false,\n minRowsAtStart: 2,\n selectable: false,\n activable: false,\n infiniteScrollOffset: 0,\n photoSwipeOptions: {\n loop: false,\n },\n photoSwipePluginsInitFn: null,\n ssr: {\n galleryWidth: 480,\n },\n };\n\n /**\n * Images wrapper container\n */\n protected bodyElementRef: HTMLElement;\n\n /**\n * Items for which container has been added to dom, but image has not been queries yet\n */\n protected scrollBufferedItems: Item[] = [];\n\n /**\n * Debounce function\n * Runs a small delay after last image has been added to dom\n * When it runs, images are loaded (appear with fade) and more images are queries to preserve a buffer of\n * out-of-dom items\n */\n protected flushBufferedItems: () => void;\n\n /**\n * Number of items to query on buffer flushing\n */\n protected requiredItems = 0;\n protected readonly document: Document;\n /**\n * PhotoSwipe Lightbox object\n */\n protected psLightbox: PhotoSwipeLightbox | null = null;\n /**\n * Used to test the scroll direction\n * Avoid to load more images when scrolling up\n */\n private old_scroll_top = 0;\n /**\n * Stores page index that have been emitted\n * Keeps a log of pages already asked to prevent to ask them multiple times\n */\n private requestedIndexesLog: number[] = [];\n /**\n * Reference to next button element\n */\n private nextButton: HTMLElement;\n\n /**\n *\n * @param elementRef\n * @param options\n * @param scrollElementRef\n */\n constructor(\n protected elementRef: HTMLElement,\n options: GalleryOptions,\n protected scrollElementRef?: HTMLElement | null,\n ) {\n this.document = this.elementRef.ownerDocument;\n this.options = defaultsDeep(options, this.options);\n\n // After having finished to add items to dom, show images inside containers and emit updated pagination\n this.flushBufferedItems = debounce(() => {\n this.scrollBufferedItems.forEach(item => {\n this.dispatchEvent('item-displayed', item);\n });\n\n this.scrollBufferedItems = [];\n\n if (!this.requiredItems) {\n return;\n }\n\n // Each time a pagination event is emitted, the offset is logged and then verified to be sure to not ask it\n // twice. That would cause duplicated entries and probably empty buffer with smaller pages. That could\n // cause infinite loading until the end of the gallery\n if (this.requestedIndexesLog.indexOf(this.collection.length) < 0) {\n const offset = this.collection.length;\n this.dispatchEvent('pagination', {offset, limit: this.requiredItems});\n this.requestedIndexesLog.push(offset);\n this.requiredItems = 0;\n }\n }, 500);\n\n this.elementRef.classList.add('natural-gallery-js');\n this.elementRef.classList.add(this.getFormatName());\n\n // Next button\n this.nextButton = this.document.createElement('button');\n this.nextButton.classList.add('natural-gallery-next');\n this.nextButton.appendChild(getNextIcon(this.document));\n this.nextButton.setAttribute('aria-label', 'next page');\n this.nextButton.style.display = 'none';\n this.nextButton.addEventListener('click', e => {\n e.preventDefault();\n this.onPageAdd();\n });\n\n this.bodyElementRef = this.document.createElement('div');\n this.bodyElementRef.classList.add('natural-gallery-body');\n this.extendToFreeViewport();\n\n // Iframe\n const iframe = this.document.createElement('iframe');\n this.elementRef.appendChild(iframe);\n\n // Resize debounce\n const resizeDebounceDuration = 500;\n const startResize = debounce(() => this.startResize(), resizeDebounceDuration, {edges: ['leading']});\n const endResize = debounce(() => this.endResize(), resizeDebounceDuration);\n iframe.contentWindow?.addEventListener('resize', () => {\n endResize();\n startResize();\n });\n\n this.elementRef.appendChild(this.bodyElementRef);\n this.elementRef.appendChild(this.nextButton);\n\n if (!this.options.rowsPerPage) {\n this.bindScroll(this.scrollElementRef || this.document);\n }\n\n this.requestItems();\n\n if (this.options.lightbox) {\n this.photoSwipeInit();\n }\n }\n\n /**\n * Get PhotoSwipe Lightbox\n */\n /* istanbul ignore next */\n get photoSwipe(): PhotoSwipeLightbox | null {\n return this.psLightbox;\n }\n\n /**\n * Get currently selected PhotoSwipe image\n */\n /* istanbul ignore next */\n get photoSwipeCurrentItem(): Model | null {\n return this.collection[this.psLightbox?.pswp?.currIndex || 0]?.model || null;\n }\n\n /**\n * Complete collection of images\n * @type {Array}\n */\n protected _collection: Item[] = [];\n\n get collection(): Item[] {\n return this._collection;\n }\n\n /**\n * Partial set of items that represent the visible items\n * @type {Item[]}\n * @private\n */\n protected _domCollection: Item[] = [];\n\n get domCollection(): Item[] {\n return this._domCollection;\n }\n\n get selectedItems(): Item[] {\n return this.collection.filter(item => item.selected);\n }\n\n get width(): number {\n // elementRef.clientWidth rounds ceil, we need round floor to grant computing fits in the available space\n // elementRef.getBoundingClientRect().width doesn't round, so we can round floor.\n return Math.floor(this.elementRef.getBoundingClientRect?.().width ?? this.options.ssr.galleryWidth);\n }\n\n public addItemToPhotoSwipeCollection(item: Item) {\n const photoSwipeId = this.domCollection.length - 1;\n\n /* istanbul ignore next */\n item.rootElement?.addEventListener('zoom', () => {\n this.psLightbox?.loadAndOpen(photoSwipeId);\n });\n }\n\n /**\n * Add items to collection\n * Transform given list of models into inner Items\n * @param models list of models\n */\n public addItems(models: Model[]): void {\n // Display newly added images if it's the first addition or if all images are already shown\n const addToDom = this.collection.length === this.domCollection.length;\n const collectionSize = this.collection.length;\n\n // Complete collection\n models.forEach((model: Model) => {\n const itemOptions = pick(this.options, ['lightbox', 'selectable', 'activable', 'gap', 'labelVisibility']);\n const item = new Item(this.document, itemOptions, model);\n this._collection.push(item);\n });\n\n if (addToDom && collectionSize === 0) {\n // First addition : collection size is 0\n this.onPageAdd();\n } else if (addToDom && collectionSize > 0) {\n // Gallery collection completion (after first addition) : collection size > 0\n this.onScroll();\n }\n }\n\n public setLabelHover(activate: boolean): void {\n this.options.labelVisibility = activate ? LabelVisibility.HOVER : LabelVisibility.ALWAYS;\n this.collection.forEach(item => {\n item.setLabelHover(activate);\n });\n }\n\n /**\n * Select all items given to the gallery, whenever they are in the DOM or not\n */\n public selectCollection(): Item[] {\n return this.selectItems(this.collection);\n }\n\n /**\n * Select all items in the DOM\n * Ignores buffered items\n */\n public selectDomCollection(): Item[] {\n return this.selectItems(this.domCollection);\n }\n\n private selectItems(collection: Item[]): Item[] {\n if (!this.options.selectable) {\n throw Error('Gallery is not selectable');\n }\n\n collection.forEach(item => item.select());\n return this.selectedItems;\n }\n\n /**\n * Unselect all selected elements\n */\n public unselectAllItems(): void {\n this.domCollection.forEach(item => item.unselect());\n }\n\n /**\n * Allows to use the same approach and method name to listen as gallery events on DOM or on javascript gallery\n * object\n *\n * Gallery requests items when it's instantiated. But user may subscribe after creation, so we need to request\n * again if user subscribes by this function.\n *\n * @param name\n * @param callback\n * @param options An object that specifies characteristics about the event listener. The available options are, see\n * addEventListener official documentation\n */\n public addEventListener>(\n name: K,\n callback: (evt: CustomEvent[K]>) => void,\n options?: boolean | AddEventListenerOptions,\n ): void;\n\n public addEventListener(\n name: keyof CustomEventDetailMap,\n callback: (evt: CustomEvent[keyof CustomEventDetailMap]>) => void,\n options?: boolean | AddEventListenerOptions,\n ): void {\n this.elementRef.addEventListener(name, callback, options);\n\n if (name === 'pagination') {\n this.requestItems();\n }\n }\n\n /**\n * Public api for empty function\n * Emits a pagination event\n */\n public clear(): void {\n this.empty();\n this.requestItems();\n }\n\n /**\n * Return copy of options to prevent modification\n */\n public getOptions(): GalleryOptions {\n return this.options;\n }\n\n /**\n * Override current collection\n * @param {Item[]} items\n */\n public setItems(items: Model[]): void {\n this.empty();\n this.addItems(items);\n }\n\n /**\n *\n */\n public abstract organizeItems(items: Item[], fromRow?: number, toRow?: number): void;\n\n /**\n * Initializes PhotoSwipe\n */\n protected photoSwipeInit() {\n this.psLightbox = new PhotoSwipeLightbox({\n ...this.options.photoSwipeOptions,\n pswpModule: PhotoSwipe,\n });\n\n /* istanbul ignore next */\n this.psLightbox.addFilter('numItems', (): number => {\n return this.domCollection.length;\n });\n\n /* istanbul ignore next */\n this.psLightbox.addFilter('itemData', (_itemData: SlideData, index: number): SlideData => {\n const item = this.collection[index];\n return {\n id: index,\n src: item.model.enlargedSrc,\n w: item.model.enlargedWidth,\n h: item.model.enlargedHeight,\n msrc: item.model.thumbnailSrc,\n element: item.rootElement!,\n thumbCropped: item.cropped,\n alt: item.sanitizedTitle,\n };\n });\n\n /* istanbul ignore next */\n if (this.options.photoSwipePluginsInitFn) {\n this.options.photoSwipePluginsInitFn(this.psLightbox);\n }\n\n this.psLightbox.init();\n\n // Loading one more page when going to next image\n /* istanbul ignore next */\n this.psLightbox.on('change', () => {\n // Positive delta means next slide.\n // If we go next slide, and current index is out of visible collection bound, load more items\n if (this.psLightbox?.pswp && this.psLightbox.pswp.currIndex > this.domCollection.length - 10) {\n this.onPageAdd();\n }\n });\n\n // With accessibility :focus usage, figures tend to stay sticky on focused state. This returns to wanted behavior\n /* istanbul ignore next */\n this.psLightbox.on('destroy', () => {\n (this.document.activeElement as HTMLElement)?.blur();\n });\n }\n\n /**\n *\n */\n protected abstract getEstimatedColumnsPerRow(): number;\n\n /**\n * AbstractRowGallery + Masonry\n */\n protected abstract onScroll(): void;\n\n /**\n * AbstractRowGallery + Masonry\n */\n protected abstract onPageAdd(): void;\n\n protected abstract getFormatName(): string;\n\n /**\n * Return number of rows to show per page to fill the empty space until the bottom of the screen\n * Should grant all the space is used or more, but not less.\n * @returns {number}\n */\n protected abstract getEstimatedRowsPerPage(): number;\n\n /**\n * Fire pagination event\n * Information provided in the event allows to retrieve items from the server using given data :\n * \"offset\" and \"limit\" that have the same semantic that respective attributes in mySQL.\n *\n * The gallery asks for items it needs, including some buffer items that are not displayed when given but are\n * available to be added immediately to DOM when user scrolls.\n *\n */\n protected requestItems(): void {\n const estimatedPerRow = this.getEstimatedColumnsPerRow();\n\n // +1 because we have to get more than what is used under onPageAdd().\n // Without +1 all items are always added to DOM and gallery will loop load until end of collection\n const limit = estimatedPerRow * this.getRowsPerPage() + 1;\n this.dispatchEvent('pagination', {offset: this.collection.length, limit: limit});\n }\n\n /**\n * Returns option.rowsPerPage is specified.\n * If not returns the estimated number of rows to fill the rest of the vertical space in the screen\n * @returns {number}\n */\n protected getRowsPerPage(): number {\n if (this.options.rowsPerPage > 0) {\n return this.options.rowsPerPage;\n }\n\n const estimation = this.getEstimatedRowsPerPage();\n return estimation < this.options.minRowsAtStart ? this.options.minRowsAtStart : estimation;\n }\n\n /**\n * Add given item to DOM and to domCollection\n * @param {Item} item\n * @param destination\n */\n protected addItemToDOM(item: Item, destination: HTMLElement = this.bodyElementRef): void {\n this.domCollection.push(item);\n\n destination.appendChild(item.init());\n\n this.scrollBufferedItems.push(item);\n this.requiredItems++;\n this.dispatchEvent('item-added-to-dom', item);\n\n item.rootElement?.addEventListener('select', () => {\n this.dispatchEvent(\n 'select',\n this.domCollection.filter(i => i.selected),\n );\n });\n\n // When activate (if activate event is given in options)\n item.rootElement?.addEventListener('activate', (ev: CustomEvent>) => {\n this.dispatchEvent('activate', {item, event: ev.detail.event});\n });\n\n if (this.options.lightbox) {\n this.addItemToPhotoSwipeCollection(item);\n }\n }\n\n protected updateNextButtonVisibility(): void {\n if (this.domCollection.length === this.collection.length) {\n this.nextButton.style.display = 'none';\n } else {\n this.nextButton.style.display = 'block';\n }\n }\n\n /**\n * If infinite scroll (no option.rowsPerPage provided), a minimum height is setted to force gallery to overflow\n * from viewport. This activates the scroll before adding items to dom. This prevents the scroll to fire new resize\n * event and recompute all gallery twice on start.\n */\n protected extendToFreeViewport(): void {\n if (this.options.rowsPerPage) {\n return;\n }\n\n this.elementRef.style.minHeight = this.getGalleryVisibleHeight() + 10 + 'px';\n }\n\n /**\n * Space between the top of the gallery wrapper (parent of gallery root elementRef) and the bottom of the window\n */\n protected getGalleryVisibleHeight(): number {\n if (this.document.defaultView) {\n return this.document.defaultView.innerHeight - this.elementRef.offsetTop;\n }\n\n return 0;\n }\n\n protected startResize(): void {\n this.bodyElementRef?.classList.add('resizing');\n }\n\n protected endResize(): void {\n this.bodyElementRef?.classList.remove('resizing');\n }\n\n protected dispatchEvent>>(\n name: K,\n data: CustomEventDetailMap>[K],\n ): void {\n try {\n const event = new CustomEvent(name, {detail: data});\n this.elementRef.dispatchEvent(event);\n } catch {\n // silent fail\n }\n }\n\n /**\n * Effectively empty gallery, and should prepare container to receive new items\n */\n protected empty(): void {\n this.bodyElementRef.innerHTML = '';\n this.requestedIndexesLog.length = 0;\n this._domCollection = [];\n this._collection = [];\n }\n\n /**\n * Listen to scroll event and manages rows additions for lazy load\n * @param {HTMLElement | Document} element\n */\n private bindScroll(element: HTMLElement | Document) {\n const scrollable = element;\n const wrapper: HTMLElement = element instanceof Document ? element.documentElement : element;\n\n const startScroll = debounce(() => this.elementRef.classList.add('scrolling'), 300, {edges: ['leading']});\n const endScroll = debounce(() => this.elementRef.classList.remove('scrolling'), 300);\n\n scrollable.addEventListener('scroll', () => {\n startScroll();\n endScroll();\n\n const endOfGalleryAt =\n this.elementRef.offsetTop + this.elementRef.offsetHeight + this.options.infiniteScrollOffset;\n\n // Avoid to expand gallery if we are scrolling up\n const current_scroll_top = wrapper.scrollTop - (wrapper.clientTop || 0);\n const wrapperHeight = wrapper.clientHeight;\n const scroll_delta = current_scroll_top - this.old_scroll_top;\n this.old_scroll_top = current_scroll_top;\n\n // \"enableMoreLoading\" is a setting coming from the BE bloking / enabling dynamic loading of thumbnail\n if (scroll_delta > 0 && current_scroll_top + wrapperHeight >= endOfGalleryAt) {\n // When scrolling only add a row at once\n this.onScroll();\n }\n });\n }\n\n get rootElement(): HTMLElement {\n return this.elementRef;\n }\n\n get bodyElement(): HTMLElement {\n return this.bodyElementRef;\n }\n}\n","import {AbstractGallery, GalleryOptions, ModelAttributes} from './AbstractGallery';\n\nexport abstract class AbstractRowGallery<\n Model extends ModelAttributes = ModelAttributes,\n> extends AbstractGallery {\n protected constructor(\n protected elementRef: HTMLElement,\n options: GalleryOptions,\n protected scrollElementRef?: HTMLElement | null,\n ) {\n super(elementRef, options, scrollElementRef);\n this.bodyElementRef!.style.rowGap = this.options.gap + 'px';\n }\n\n protected onScroll(): void {\n this.addRows(1);\n }\n\n protected onPageAdd(): void {\n this.addRows(this.getRowsPerPage());\n }\n\n /**\n * Add given number of rows to DOM\n * @param rows\n */\n protected addRows(rows: number): void {\n const nbVisibleImages = this.domCollection.length;\n\n // Next row to add (first invisible row)\n const nextRow = this.domCollection.length ? this.domCollection[nbVisibleImages - 1].row + 1 : 0;\n const lastWantedRow = nextRow + rows - 1;\n\n // Compute size only for elements we're going to add\n const bufferedItems = this.collection.slice(nbVisibleImages);\n this.organizeItems(bufferedItems, nextRow, lastWantedRow);\n\n const itemsToAdd = bufferedItems.filter(i => i.row <= lastWantedRow);\n itemsToAdd.forEach(i => this.addItemToDOM(i));\n\n this.flushBufferedItems();\n this.updateNextButtonVisibility();\n }\n\n protected endResize(): void {\n super.endResize();\n\n if (!this.domCollection.length) {\n return;\n }\n\n // Compute with new width. Rows indexes may have changed\n this.organizeItems(this.domCollection);\n }\n}\n","import {Item} from '../Item';\nimport {getImageRatio, getImageRatioAndIfCropped, RatioLimits} from '../Utility';\nimport {GalleryOptions, ModelAttributes, SizedModel} from './AbstractGallery';\nimport {AbstractRowGallery} from './AbstractRowGallery';\n\nexport interface NaturalGalleryOptions extends GalleryOptions {\n rowHeight: number;\n ratioLimit?: RatioLimits;\n}\n\nexport class Natural extends AbstractRowGallery {\n /**\n * Options after having been defaulted\n */\n declare protected options: Required;\n\n constructor(elementRef: HTMLElement, options: NaturalGalleryOptions, scrollElementRef?: HTMLElement | null) {\n super(elementRef, options, scrollElementRef);\n if (!options.rowHeight || options.rowHeight <= 0) {\n throw new Error('Option.rowHeight must be positive');\n }\n }\n\n public static organizeItems(\n gallery: Natural,\n items: Item[],\n fromRow = 0,\n toRow: number | null = null,\n currentRow: number | null = null,\n ): void {\n if (!currentRow) {\n currentRow = fromRow ? fromRow : 0;\n }\n\n const options = gallery.options;\n\n for (let chunkSize = 1; chunkSize <= items.length; chunkSize++) {\n const chunk = items.slice(0, chunkSize);\n const rowWidth = this.getRowWidth(\n chunk.map(c => c.model),\n options.rowHeight,\n options.gap,\n options.ratioLimit,\n );\n\n if (rowWidth >= gallery.width) {\n // if end of row\n\n this.computeSizes(chunk, gallery.width, options.gap, currentRow, null, options.ratioLimit);\n\n const nextRow = currentRow + 1;\n if (toRow === null || nextRow <= toRow) {\n Natural.organizeItems(gallery, items.slice(chunkSize), fromRow, toRow, nextRow);\n }\n\n break;\n } else if (chunkSize === items.length) {\n // if end of list\n // the width is not fixed as we have not enough items\n // size of images are indexed on max row height.\n this.computeSizes(chunk, null, options.gap, currentRow, options.rowHeight, options.ratioLimit);\n break;\n }\n }\n }\n\n /**\n * Compute sizes for given images to fit in given row width\n * Items are updated\n */\n public static computeSizes(\n chunk: Item[],\n containerWidth: number | null,\n margin: number,\n row: number,\n maxRowHeight: number | null = null,\n ratioLimits?: RatioLimits,\n ): void {\n const chunkModels = chunk.map(c => c.model);\n const rowHeight = containerWidth\n ? this.getRowHeight(chunkModels, containerWidth, margin, ratioLimits)\n : (maxRowHeight ?? 0);\n const rowWidth = this.getRowWidth(chunkModels, rowHeight, margin, ratioLimits);\n\n // Overflowed pixels\n const apportion = (rowWidth - (containerWidth ?? 0)) / chunk.length;\n const excess = containerWidth ? apportion : 0;\n let decimals = 0;\n\n for (let i = 0; i < chunk.length; i++) {\n const item = chunk[i];\n const {ratio, cropped} = getImageRatioAndIfCropped(item.model, ratioLimits);\n let width = ratio * rowHeight - excess;\n decimals += width - Math.floor(width);\n width = Math.floor(width);\n\n if (decimals >= 1 || (i === chunk.length - 1 && Math.round(decimals) === 1)) {\n width++;\n decimals--;\n }\n\n item.width = width;\n item.height = Math.floor(rowHeight);\n item.cropped = cropped;\n item.row = row;\n item.style();\n }\n }\n\n public static getRowWidth(\n models: SizedModel[],\n maxRowHeight: number,\n margin: number,\n ratioLimits?: RatioLimits,\n ): number {\n return margin * (models.length - 1) + this.getRatios(models, ratioLimits) * maxRowHeight;\n }\n\n public static getRowHeight(\n models: SizedModel[],\n containerWidth: number,\n margin: number,\n ratioLimits?: RatioLimits,\n ): number {\n return (containerWidth - margin * (models.length - 1)) / this.getRatios(models, ratioLimits);\n }\n\n /**\n * Return the ratio format of models as if they were a single image\n */\n public static getRatios(models: SizedModel[], ratioLimits?: RatioLimits): number {\n return models.reduce((total, model) => total + getImageRatio(model, ratioLimits), 0);\n }\n\n public addRows(rows: number): void {\n this.completeLastRow();\n super.addRows(rows);\n }\n\n public organizeItems(items: Item[], fromRow?: number, toRow?: number): void {\n Natural.organizeItems(this, items, fromRow, toRow);\n }\n\n protected getFormatName(): string {\n return 'format-natural';\n }\n\n protected endResize(): void {\n super.endResize();\n this.completeLastRow();\n this.flushBufferedItems();\n }\n\n protected getEstimatedColumnsPerRow(): number {\n let ratio = 1;\n\n // Better prediction using ratio if provided\n if (this.options.ratioLimit && this.options.ratioLimit.min) {\n ratio = this.options.ratioLimit.min;\n }\n\n return Math.ceil(((1 / ratio) * this.width + this.options.gap) / (this.options.rowHeight + this.options.gap));\n }\n\n protected getEstimatedRowsPerPage(): number {\n return Math.ceil(this.getGalleryVisibleHeight() / (this.options.rowHeight + this.options.gap)) + 1;\n }\n\n private completeLastRow(): void {\n if (!this.domCollection.length) {\n return;\n }\n\n // Get last row number\n const lastVisibleRow = this.domCollection[this.domCollection.length - 1].row;\n\n // Get number of items in that last row\n const visibleItemsInLastRow = this.domCollection.filter(i => i.row === lastVisibleRow).length;\n\n // Get a list from first item of last row until end of collection\n const collectionFromLastVisibleRow = this.collection.slice(this.domCollection.length - visibleItemsInLastRow);\n this.organizeItems(\n collectionFromLastVisibleRow,\n collectionFromLastVisibleRow[0].row,\n collectionFromLastVisibleRow[0].row,\n );\n const itemsToAdd = collectionFromLastVisibleRow\n .slice(visibleItemsInLastRow)\n .filter(i => i.row <= collectionFromLastVisibleRow[0].row);\n\n itemsToAdd.forEach(i => this.addItemToDOM(i));\n }\n}\n","import {Item} from './Item';\nimport {ModelAttributes} from './galleries/AbstractGallery';\n\nexport declare interface ColumnOptions {\n width: number;\n gap: number;\n}\n\nexport class Column {\n private readonly collection: Item[] = [];\n\n private readonly _elementRef: HTMLElement;\n\n public constructor(\n document: Document,\n private options: ColumnOptions,\n ) {\n this._elementRef = document.createElement('div');\n this._elementRef.classList.add('column');\n this._elementRef.style.width = this.options.width + 'px';\n this._elementRef.style.gap = this.options.gap + 'px';\n }\n\n get height(): number {\n return this._elementRef.offsetHeight;\n }\n\n get elementRef(): HTMLElement {\n return this._elementRef;\n }\n\n public addItem(item: Item): void {\n this.collection.push(item);\n }\n}\n","import {Column} from '../Column';\nimport {Item} from '../Item';\nimport {getImageRatioAndIfCropped, RatioLimits} from '../Utility';\nimport {AbstractGallery, GalleryOptions, ModelAttributes} from './AbstractGallery';\n\nexport interface MasonryGalleryOptions extends GalleryOptions {\n columnWidth: number;\n ratioLimit?: RatioLimits;\n}\n\nexport class Masonry extends AbstractGallery {\n /**\n * Options after having been defaulted\n */\n declare protected options: Required;\n\n /**\n * Regroup the list of columns\n */\n protected columns: Column[] = [];\n\n constructor(elementRef: HTMLElement, options: MasonryGalleryOptions, scrollElementRef?: HTMLElement | null) {\n super(elementRef, options, scrollElementRef);\n\n if (!options.columnWidth || options.columnWidth <= 0) {\n throw new Error('Option.columnWidth must be positive');\n }\n\n this.addColumns();\n\n /**\n * Setup scroll detection to prevent empty zones due to different heights\n */\n if (!this.options.infiniteScrollOffset) {\n let ratio = 0.5; // Portrait format to maximize estimated height\n\n // Better prediction using ratio if provided\n if (this.options.ratioLimit && this.options.ratioLimit.min) {\n ratio = this.options.ratioLimit.min;\n }\n\n const columnWidth = this.getColumnWidth();\n this.options.infiniteScrollOffset = (-1 * columnWidth) / ratio;\n }\n }\n\n /**\n * Compute sides with 1:1 ratio\n */\n public static organizeItems(\n gallery: Masonry,\n items: Item[],\n fromIndex = 0,\n toIndex: number | null = null,\n ): void {\n const itemsPerRow = gallery.getEstimatedColumnsPerRow();\n\n // Compute columnWidth of pictures\n const columnWidth = gallery.getColumnWidth();\n\n let lastIndex = toIndex ? itemsPerRow * (toIndex - fromIndex + 1) : items.length;\n lastIndex = lastIndex > items.length ? items.length : lastIndex;\n\n for (let i = 0; i < lastIndex; i++) {\n const item = items[i];\n const {ratio, cropped} = getImageRatioAndIfCropped(item.model, gallery.options.ratioLimit);\n\n item.width = Math.floor(columnWidth);\n item.height = item.width / ratio;\n item.cropped = cropped;\n item.style(); // todo : externalise to split dom manipulation and logic computing\n }\n }\n\n public organizeItems(items: Item[], fromRow?: number, toRow?: number): void {\n Masonry.organizeItems(this, items, fromRow, toRow);\n }\n\n protected onScroll(): void {\n this.addUntilFill();\n }\n\n protected onPageAdd(): void {\n this.addUntilFill();\n }\n\n protected getFormatName(): string {\n return 'format-masonry';\n }\n\n protected getEstimatedColumnsPerRow(): number {\n return Math.ceil((this.width - this.options.gap) / (this.options.columnWidth + this.options.gap));\n }\n\n protected getEstimatedRowsPerPage(): number {\n let ratio = 1.75; // ~16/9 - landscape format to minimum the height and maximize the prediction of the number of items\n\n // Better prediction using ratio if provided\n if (this.options.ratioLimit && this.options.ratioLimit.max) {\n ratio = this.options.ratioLimit.max;\n }\n\n const columnWidth = this.getColumnWidth();\n const estimatedImageHeight = columnWidth / ratio;\n return Math.ceil(this.getGalleryVisibleHeight() / estimatedImageHeight);\n }\n\n /**\n * Use current gallery height as reference. To fill free space it add images until the gallery height changes, then are one more row\n */\n protected addUntilFill(): void {\n do {\n this.addItemsToDom(1);\n } while (this.viewportIsNotFilled() && this.domCollection.length < this.collection.length);\n }\n\n protected addItemToDOM(item: Item): void {\n const shortestColumn = this.getShortestColumn();\n shortestColumn.addItem(item);\n super.addItemToDOM(item, shortestColumn.elementRef);\n }\n\n protected endResize(): void {\n super.endResize();\n\n if (!this.domCollection.length) {\n return;\n }\n\n // Compute with new width. Rows indexes may have changed\n this.domCollection.length = 0;\n this.addColumns();\n this.addUntilFill();\n }\n\n protected addColumns(): void {\n this.bodyElementRef.innerHTML = '';\n this.columns = [];\n const columnWidth = this.getColumnWidth();\n for (let i = 0; i < this.getEstimatedColumnsPerRow(); i++) {\n const columnRef = new Column(this.document, {width: columnWidth, gap: this.options.gap});\n this.columns.push(columnRef);\n this.bodyElementRef.appendChild(columnRef.elementRef);\n }\n }\n\n protected empty(): void {\n super.empty();\n this.addColumns();\n }\n\n /**\n * Returns true if at least one column doesn't overflow on the bottom of the viewport\n */\n private viewportIsNotFilled(): boolean {\n return this.columns.some(\n c => c.elementRef.getBoundingClientRect().bottom < this.document.documentElement.clientHeight,\n );\n }\n\n private addItemsToDom(nbItems: number) {\n const nbVisibleImages = this.domCollection.length;\n\n // Next row to add (first invisible row)\n const firstIndex = this.domCollection.length ? nbVisibleImages : 0;\n const lastWantedIndex = firstIndex + nbItems - 1;\n\n // Compute size only for elements we're going to add\n this.organizeItems(this.collection.slice(nbVisibleImages), firstIndex, lastWantedIndex);\n\n for (let i = nbVisibleImages; i < this.collection.length; i++) {\n const item = this.collection[i];\n if (i <= lastWantedIndex) {\n this.addItemToDOM(item);\n } else {\n break;\n }\n }\n\n this.flushBufferedItems();\n this.updateNextButtonVisibility();\n }\n\n /**\n * Return square side size\n */\n private getColumnWidth(): number {\n const itemsPerRow = this.getEstimatedColumnsPerRow();\n return Math.floor((this.width - (itemsPerRow - 1) * this.options.gap) / itemsPerRow);\n }\n\n private getShortestColumn(): Column {\n return this.columns.reduce((shortestColumn, column) => {\n if (!shortestColumn) {\n return column;\n }\n\n return column.height < shortestColumn.height ? column : shortestColumn;\n });\n }\n}\n","import {Item} from '../Item';\nimport {GalleryOptions, ModelAttributes} from './AbstractGallery';\nimport {AbstractRowGallery} from './AbstractRowGallery';\n\nexport interface SquareGalleryOptions extends GalleryOptions {\n itemsPerRow: number;\n}\n\nexport class Square extends AbstractRowGallery {\n /**\n * Options after having been defaulted\n */\n declare protected options: Required;\n\n constructor(elementRef: HTMLElement, options: SquareGalleryOptions, scrollElementRef?: HTMLElement | null) {\n super(elementRef, options, scrollElementRef);\n\n if (!options.itemsPerRow || options.itemsPerRow <= 0) {\n throw new Error('Option.itemsPerRow must be positive');\n }\n }\n\n /**\n * Compute sides with 1:1 ratio\n */\n public static organizeItems(\n gallery: Square,\n items: Item[],\n firstRowIndex = 0,\n toRow: number | null = null,\n ): void {\n const sideSize = gallery.getItemSideSize();\n let lastIndex = toRow ? gallery.options.itemsPerRow * (toRow - firstRowIndex + 1) : items.length;\n lastIndex = lastIndex > items.length ? items.length : lastIndex;\n\n for (let i = 0; i < lastIndex; i++) {\n const item = items[i];\n item.width = Math.floor(sideSize);\n item.height = Math.floor(sideSize);\n item.cropped = true;\n item.row = Math.floor(i / gallery.options.itemsPerRow) + firstRowIndex;\n item.style();\n }\n }\n\n public organizeItems(items: Item[], fromRow?: number, toRow?: number): void {\n Square.organizeItems(this, items, fromRow, toRow);\n }\n\n protected getEstimatedColumnsPerRow(): number {\n return this.options.itemsPerRow;\n }\n\n protected getEstimatedRowsPerPage(): number {\n return Math.ceil(this.getGalleryVisibleHeight() / this.getItemSideSize());\n }\n\n /**\n * Return square side size\n */\n protected getItemSideSize(): number {\n const itemsPerRow = this.getEstimatedColumnsPerRow();\n return (this.width - (itemsPerRow - 1) * this.options.gap) / itemsPerRow;\n }\n\n protected getFormatName(): string {\n return 'format-square';\n 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!Object.getOwnPropertyDescriptor(object, Symbol.toStringTag)?.writable;\n if (isTagReadonly) {\n return false;\n }\n return object.toString() === `[object ${tag}]`;\n }\n let proto = object;\n while (Object.getPrototypeOf(proto) !== null) {\n proto = Object.getPrototypeOf(proto);\n }\n return Object.getPrototypeOf(object) === proto;\n}\n\nexport { isPlainObject };\n","import { isPlainObject } from '../predicate/isPlainObject.mjs';\n\nfunction defaultsDeep(target, ...sources) {\n target = Object(target);\n for (let i = 0; i < sources.length; i++) {\n const source = sources[i];\n if (source != null) {\n const stack = new WeakMap();\n defaultsDeepRecursive(target, source, stack);\n }\n }\n return target;\n}\nfunction defaultsDeepRecursive(target, source, stack) {\n for (const key in source) {\n const sourceValue = source[key];\n const targetValue = target[key];\n const targetHasKey = Object.hasOwn(target, key);\n if (!targetHasKey || targetValue === undefined) {\n if (stack.has(sourceValue)) {\n target[key] = stack.get(sourceValue);\n }\n else if (isPlainObject(sourceValue)) {\n const newObj = {};\n stack.set(sourceValue, newObj);\n target[key] = newObj;\n defaultsDeepRecursive(newObj, sourceValue, stack);\n }\n else {\n target[key] = sourceValue;\n }\n }\n else if (isPlainObject(targetValue) && isPlainObject(sourceValue)) {\n const inStack = stack.has(sourceValue);\n if (!inStack || (inStack && stack.get(sourceValue) !== targetValue)) {\n stack.set(sourceValue, targetValue);\n defaultsDeepRecursive(targetValue, sourceValue, stack);\n }\n }\n }\n}\n\nexport { defaultsDeep };\n","/** @typedef {import('../photoswipe.js').Point} Point */\r\n\r\n/**\r\n * @template {keyof HTMLElementTagNameMap} T\r\n * @param {string} className\r\n * @param {T} tagName\r\n * @param {Node} [appendToEl]\r\n * @returns {HTMLElementTagNameMap[T]}\r\n */\r\nexport function createElement(className, tagName, appendToEl) {\r\n const el = document.createElement(tagName);\r\n if (className) {\r\n el.className = className;\r\n }\r\n if (appendToEl) {\r\n appendToEl.appendChild(el);\r\n }\r\n return el;\r\n}\r\n\r\n/**\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {Point}\r\n */\r\nexport function equalizePoints(p1, p2) {\r\n p1.x = p2.x;\r\n p1.y = p2.y;\r\n if (p2.id !== undefined) {\r\n p1.id = p2.id;\r\n }\r\n return p1;\r\n}\r\n\r\n/**\r\n * @param {Point} p\r\n */\r\nexport function roundPoint(p) {\r\n p.x = Math.round(p.x);\r\n p.y = Math.round(p.y);\r\n}\r\n\r\n/**\r\n * Returns distance between two points.\r\n *\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {number}\r\n */\r\nexport function getDistanceBetween(p1, p2) {\r\n const x = Math.abs(p1.x - p2.x);\r\n const y = Math.abs(p1.y - p2.y);\r\n return Math.sqrt((x * x) + (y * y));\r\n}\r\n\r\n/**\r\n * Whether X and Y positions of points are equal\r\n *\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {boolean}\r\n */\r\nexport function pointsEqual(p1, p2) {\r\n return p1.x === p2.x && p1.y === p2.y;\r\n}\r\n\r\n/**\r\n * The float result between the min and max values.\r\n *\r\n * @param {number} val\r\n * @param {number} min\r\n * @param {number} max\r\n * @returns {number}\r\n */\r\nexport function clamp(val, min, max) {\r\n return Math.min(Math.max(val, min), max);\r\n}\r\n\r\n/**\r\n * Get transform string\r\n *\r\n * @param {number} x\r\n * @param {number} [y]\r\n * @param {number} [scale]\r\n * @returns {string}\r\n */\r\nexport function toTransformString(x, y, scale) {\r\n let propValue = `translate3d(${x}px,${y || 0}px,0)`;\r\n\r\n if (scale !== undefined) {\r\n propValue += ` scale3d(${scale},${scale},1)`;\r\n }\r\n\r\n return propValue;\r\n}\r\n\r\n/**\r\n * Apply transform:translate(x, y) scale(scale) to element\r\n *\r\n * @param {HTMLElement} el\r\n * @param {number} x\r\n * @param {number} [y]\r\n * @param {number} [scale]\r\n */\r\nexport function setTransform(el, x, y, scale) {\r\n el.style.transform = toTransformString(x, y, scale);\r\n}\r\n\r\nconst defaultCSSEasing = 'cubic-bezier(.4,0,.22,1)';\r\n\r\n/**\r\n * Apply CSS transition to element\r\n *\r\n * @param {HTMLElement} el\r\n * @param {string} [prop] CSS property to animate\r\n * @param {number} [duration] in ms\r\n * @param {string} [ease] CSS easing function\r\n */\r\nexport function setTransitionStyle(el, prop, duration, ease) {\r\n // inOut: 'cubic-bezier(.4, 0, .22, 1)', // for \"toggle state\" transitions\r\n // out: 'cubic-bezier(0, 0, .22, 1)', // for \"show\" transitions\r\n // in: 'cubic-bezier(.4, 0, 1, 1)'// for \"hide\" transitions\r\n el.style.transition = prop\r\n ? `${prop} ${duration}ms ${ease || defaultCSSEasing}`\r\n : 'none';\r\n}\r\n\r\n/**\r\n * Apply width and height CSS properties to element\r\n *\r\n * @param {HTMLElement} el\r\n * @param {string | number} w\r\n * @param {string | number} h\r\n */\r\nexport function setWidthHeight(el, w, h) {\r\n el.style.width = (typeof w === 'number') ? `${w}px` : w;\r\n el.style.height = (typeof h === 'number') ? `${h}px` : h;\r\n}\r\n\r\n/**\r\n * @param {HTMLElement} el\r\n */\r\nexport function removeTransitionStyle(el) {\r\n setTransitionStyle(el);\r\n}\r\n\r\n/**\r\n * @param {HTMLImageElement} img\r\n * @returns {Promise}\r\n */\r\nexport function decodeImage(img) {\r\n if ('decode' in img) {\r\n return img.decode().catch(() => {});\r\n }\r\n\r\n if (img.complete) {\r\n return Promise.resolve(img);\r\n }\r\n\r\n return new Promise((resolve, reject) => {\r\n img.onload = () => resolve(img);\r\n img.onerror = reject;\r\n });\r\n}\r\n\r\n/** @typedef {LOAD_STATE[keyof LOAD_STATE]} LoadState */\r\n/** @type {{ IDLE: 'idle'; LOADING: 'loading'; LOADED: 'loaded'; ERROR: 'error' }} */\r\nexport const LOAD_STATE = {\r\n IDLE: 'idle',\r\n LOADING: 'loading',\r\n LOADED: 'loaded',\r\n ERROR: 'error',\r\n};\r\n\r\n\r\n/**\r\n * Check if click or keydown event was dispatched\r\n * with a special key or via mouse wheel.\r\n *\r\n * @param {MouseEvent | KeyboardEvent} e\r\n * @returns {boolean}\r\n */\r\nexport function specialKeyUsed(e) {\r\n return ('button' in e && e.button === 1) || e.ctrlKey || e.metaKey || e.altKey || e.shiftKey;\r\n}\r\n\r\n/**\r\n * Parse `gallery` or `children` options.\r\n *\r\n * @param {import('../photoswipe.js').ElementProvider} [option]\r\n * @param {string} [legacySelector]\r\n * @param {HTMLElement | Document} [parent]\r\n * @returns HTMLElement[]\r\n */\r\nexport function getElementsFromOption(option, legacySelector, parent = document) {\r\n /** @type {HTMLElement[]} */\r\n let elements = [];\r\n\r\n if (option instanceof Element) {\r\n elements = [option];\r\n } else if (option instanceof NodeList || Array.isArray(option)) {\r\n elements = Array.from(option);\r\n } else {\r\n const selector = typeof option === 'string' ? option : legacySelector;\r\n if (selector) {\r\n elements = Array.from(parent.querySelectorAll(selector));\r\n }\r\n }\r\n\r\n return elements;\r\n}\r\n\r\n/**\r\n * Check if variable is PhotoSwipe class\r\n *\r\n * @param {any} fn\r\n * @returns {boolean}\r\n */\r\nexport function isPswpClass(fn) {\r\n return typeof fn === 'function'\r\n && fn.prototype\r\n && fn.prototype.goTo;\r\n}\r\n\r\n/**\r\n * Check if browser is Safari\r\n *\r\n * @returns {boolean}\r\n */\r\nexport function isSafari() {\r\n return !!(navigator.vendor && navigator.vendor.match(/apple/i));\r\n}\r\n\r\n","// Detect passive event listener support\r\nlet supportsPassive = false;\r\n/* eslint-disable */\r\ntry {\r\n /* @ts-ignore */\r\n window.addEventListener('test', null, Object.defineProperty({}, 'passive', {\r\n get: () => {\r\n supportsPassive = true;\r\n }\r\n }));\r\n} catch (e) {}\r\n/* eslint-enable */\r\n\r\n/**\r\n * @typedef {Object} PoolItem\r\n * @prop {HTMLElement | Window | Document | undefined | null} target\r\n * @prop {string} type\r\n * @prop {EventListenerOrEventListenerObject} listener\r\n * @prop {boolean} [passive]\r\n */\r\n\r\nclass DOMEvents {\r\n constructor() {\r\n /**\r\n * @type {PoolItem[]}\r\n * @private\r\n */\r\n this._pool = [];\r\n }\r\n\r\n /**\r\n * Adds event listeners\r\n *\r\n * @param {PoolItem['target']} target\r\n * @param {PoolItem['type']} type Can be multiple, separated by space.\r\n * @param {PoolItem['listener']} listener\r\n * @param {PoolItem['passive']} [passive]\r\n */\r\n add(target, type, listener, passive) {\r\n this._toggleListener(target, type, listener, passive);\r\n }\r\n\r\n /**\r\n * Removes event listeners\r\n *\r\n * @param {PoolItem['target']} target\r\n * @param {PoolItem['type']} type\r\n * @param {PoolItem['listener']} listener\r\n * @param {PoolItem['passive']} [passive]\r\n */\r\n remove(target, type, listener, passive) {\r\n this._toggleListener(target, type, listener, passive, true);\r\n }\r\n\r\n /**\r\n * Removes all bound events\r\n */\r\n removeAll() {\r\n this._pool.forEach((poolItem) => {\r\n this._toggleListener(\r\n poolItem.target,\r\n poolItem.type,\r\n poolItem.listener,\r\n poolItem.passive,\r\n true,\r\n true\r\n );\r\n });\r\n this._pool = [];\r\n }\r\n\r\n /**\r\n * Adds or removes event\r\n *\r\n * @private\r\n * @param {PoolItem['target']} target\r\n * @param {PoolItem['type']} type\r\n * @param {PoolItem['listener']} listener\r\n * @param {PoolItem['passive']} [passive]\r\n * @param {boolean} [unbind] Whether the event should be added or removed\r\n * @param {boolean} [skipPool] Whether events pool should be skipped\r\n */\r\n _toggleListener(target, type, listener, passive, unbind, skipPool) {\r\n if (!target) {\r\n return;\r\n }\r\n\r\n const methodName = unbind ? 'removeEventListener' : 'addEventListener';\r\n const types = type.split(' ');\r\n types.forEach((eType) => {\r\n if (eType) {\r\n // Events pool is used to easily unbind all events when PhotoSwipe is closed,\r\n // so developer doesn't need to do this manually\r\n if (!skipPool) {\r\n if (unbind) {\r\n // Remove from the events pool\r\n this._pool = this._pool.filter((poolItem) => {\r\n return poolItem.type !== eType\r\n || poolItem.listener !== listener\r\n || poolItem.target !== target;\r\n });\r\n } else {\r\n // Add to the events pool\r\n this._pool.push({\r\n target,\r\n type: eType,\r\n listener,\r\n passive\r\n });\r\n }\r\n }\r\n\r\n // most PhotoSwipe events call preventDefault,\r\n // and we do not need browser to scroll the page\r\n const eventOptions = supportsPassive ? { passive: (passive || false) } : false;\r\n\r\n target[methodName](\r\n eType,\r\n listener,\r\n eventOptions\r\n );\r\n }\r\n });\r\n }\r\n}\r\n\r\nexport default DOMEvents;\r\n","/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../core/base.js').default} PhotoSwipeBase */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('../slide/slide.js').SlideData} SlideData */\r\n\r\n/**\r\n * @param {PhotoSwipeOptions} options\r\n * @param {PhotoSwipeBase} pswp\r\n * @returns {Point}\r\n */\r\nexport function getViewportSize(options, pswp) {\r\n if (options.getViewportSizeFn) {\r\n const newViewportSize = options.getViewportSizeFn(options, pswp);\r\n if (newViewportSize) {\r\n return newViewportSize;\r\n }\r\n }\r\n\r\n return {\r\n x: document.documentElement.clientWidth,\r\n\r\n // TODO: height on mobile is very incosistent due to toolbar\r\n // find a way to improve this\r\n //\r\n // document.documentElement.clientHeight - doesn't seem to work well\r\n y: window.innerHeight\r\n };\r\n}\r\n\r\n/**\r\n * Parses padding option.\r\n * Supported formats:\r\n *\r\n * // Object\r\n * padding: {\r\n * top: 0,\r\n * bottom: 0,\r\n * left: 0,\r\n * right: 0\r\n * }\r\n *\r\n * // A function that returns the object\r\n * paddingFn: (viewportSize, itemData, index) => {\r\n * return {\r\n * top: 0,\r\n * bottom: 0,\r\n * left: 0,\r\n * right: 0\r\n * };\r\n * }\r\n *\r\n * // Legacy variant\r\n * paddingLeft: 0,\r\n * paddingRight: 0,\r\n * paddingTop: 0,\r\n * paddingBottom: 0,\r\n *\r\n * @param {'left' | 'top' | 'bottom' | 'right'} prop\r\n * @param {PhotoSwipeOptions} options PhotoSwipe options\r\n * @param {Point} viewportSize PhotoSwipe viewport size, for example: { x:800, y:600 }\r\n * @param {SlideData} itemData Data about the slide\r\n * @param {number} index Slide index\r\n * @returns {number}\r\n */\r\nexport function parsePaddingOption(prop, options, viewportSize, itemData, index) {\r\n let paddingValue = 0;\r\n\r\n if (options.paddingFn) {\r\n paddingValue = options.paddingFn(viewportSize, itemData, index)[prop];\r\n } else if (options.padding) {\r\n paddingValue = options.padding[prop];\r\n } else {\r\n const legacyPropName = 'padding' + prop[0].toUpperCase() + prop.slice(1);\r\n // @ts-expect-error\r\n if (options[legacyPropName]) {\r\n // @ts-expect-error\r\n paddingValue = options[legacyPropName];\r\n }\r\n }\r\n\r\n return Number(paddingValue) || 0;\r\n}\r\n\r\n/**\r\n * @param {PhotoSwipeOptions} options\r\n * @param {Point} viewportSize\r\n * @param {SlideData} itemData\r\n * @param {number} index\r\n * @returns {Point}\r\n */\r\nexport function getPanAreaSize(options, viewportSize, itemData, index) {\r\n return {\r\n x: viewportSize.x\r\n - parsePaddingOption('left', options, viewportSize, itemData, index)\r\n - parsePaddingOption('right', options, viewportSize, itemData, index),\r\n y: viewportSize.y\r\n - parsePaddingOption('top', options, viewportSize, itemData, index)\r\n - parsePaddingOption('bottom', options, viewportSize, itemData, index)\r\n };\r\n}\r\n","import { clamp } from '../util/util.js';\r\nimport { parsePaddingOption } from '../util/viewport-size.js';\r\n\r\n/** @typedef {import('./slide.js').default} Slide */\r\n/** @typedef {Record} Point */\r\n/** @typedef {'x' | 'y'} Axis */\r\n\r\n/**\r\n * Calculates minimum, maximum and initial (center) bounds of a slide\r\n */\r\nclass PanBounds {\r\n /**\r\n * @param {Slide} slide\r\n */\r\n constructor(slide) {\r\n this.slide = slide;\r\n this.currZoomLevel = 1;\r\n this.center = /** @type {Point} */ { x: 0, y: 0 };\r\n this.max = /** @type {Point} */ { x: 0, y: 0 };\r\n this.min = /** @type {Point} */ { x: 0, y: 0 };\r\n }\r\n\r\n /**\r\n * _getItemBounds\r\n *\r\n * @param {number} currZoomLevel\r\n */\r\n update(currZoomLevel) {\r\n this.currZoomLevel = currZoomLevel;\r\n\r\n if (!this.slide.width) {\r\n this.reset();\r\n } else {\r\n this._updateAxis('x');\r\n this._updateAxis('y');\r\n this.slide.pswp.dispatch('calcBounds', { slide: this.slide });\r\n }\r\n }\r\n\r\n /**\r\n * _calculateItemBoundsForAxis\r\n *\r\n * @param {Axis} axis\r\n */\r\n _updateAxis(axis) {\r\n const { pswp } = this.slide;\r\n const elSize = this.slide[axis === 'x' ? 'width' : 'height'] * this.currZoomLevel;\r\n const paddingProp = axis === 'x' ? 'left' : 'top';\r\n const padding = parsePaddingOption(\r\n paddingProp,\r\n pswp.options,\r\n pswp.viewportSize,\r\n this.slide.data,\r\n this.slide.index\r\n );\r\n\r\n const panAreaSize = this.slide.panAreaSize[axis];\r\n\r\n // Default position of element.\r\n // By default, it is center of viewport:\r\n this.center[axis] = Math.round((panAreaSize - elSize) / 2) + padding;\r\n\r\n // maximum pan position\r\n this.max[axis] = (elSize > panAreaSize)\r\n ? Math.round(panAreaSize - elSize) + padding\r\n : this.center[axis];\r\n\r\n // minimum pan position\r\n this.min[axis] = (elSize > panAreaSize)\r\n ? padding\r\n : this.center[axis];\r\n }\r\n\r\n // _getZeroBounds\r\n reset() {\r\n this.center.x = 0;\r\n this.center.y = 0;\r\n this.max.x = 0;\r\n this.max.y = 0;\r\n this.min.x = 0;\r\n this.min.y = 0;\r\n }\r\n\r\n /**\r\n * Correct pan position if it's beyond the bounds\r\n *\r\n * @param {Axis} axis x or y\r\n * @param {number} panOffset\r\n * @returns {number}\r\n */\r\n correctPan(axis, panOffset) { // checkPanBounds\r\n return clamp(panOffset, this.max[axis], this.min[axis]);\r\n }\r\n}\r\n\r\nexport default PanBounds;\r\n","const MAX_IMAGE_WIDTH = 4000;\r\n\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('../slide/slide.js').SlideData} SlideData */\r\n\r\n/** @typedef {'fit' | 'fill' | number | ((zoomLevelObject: ZoomLevel) => number)} ZoomLevelOption */\r\n\r\n/**\r\n * Calculates zoom levels for specific slide.\r\n * Depends on viewport size and image size.\r\n */\r\nclass ZoomLevel {\r\n /**\r\n * @param {PhotoSwipeOptions} options PhotoSwipe options\r\n * @param {SlideData} itemData Slide data\r\n * @param {number} index Slide index\r\n * @param {PhotoSwipe} [pswp] PhotoSwipe instance, can be undefined if not initialized yet\r\n */\r\n constructor(options, itemData, index, pswp) {\r\n this.pswp = pswp;\r\n this.options = options;\r\n this.itemData = itemData;\r\n this.index = index;\r\n /** @type { Point | null } */\r\n this.panAreaSize = null;\r\n /** @type { Point | null } */\r\n this.elementSize = null;\r\n this.fit = 1;\r\n this.fill = 1;\r\n this.vFill = 1;\r\n this.initial = 1;\r\n this.secondary = 1;\r\n this.max = 1;\r\n this.min = 1;\r\n }\r\n\r\n /**\r\n * Calculate initial, secondary and maximum zoom level for the specified slide.\r\n *\r\n * It should be called when either image or viewport size changes.\r\n *\r\n * @param {number} maxWidth\r\n * @param {number} maxHeight\r\n * @param {Point} panAreaSize\r\n */\r\n update(maxWidth, maxHeight, panAreaSize) {\r\n /** @type {Point} */\r\n const elementSize = { x: maxWidth, y: maxHeight };\r\n this.elementSize = elementSize;\r\n this.panAreaSize = panAreaSize;\r\n\r\n const hRatio = panAreaSize.x / elementSize.x;\r\n const vRatio = panAreaSize.y / elementSize.y;\r\n\r\n this.fit = Math.min(1, hRatio < vRatio ? hRatio : vRatio);\r\n this.fill = Math.min(1, hRatio > vRatio ? hRatio : vRatio);\r\n\r\n // zoom.vFill defines zoom level of the image\r\n // when it has 100% of viewport vertical space (height)\r\n this.vFill = Math.min(1, vRatio);\r\n\r\n this.initial = this._getInitial();\r\n this.secondary = this._getSecondary();\r\n this.max = Math.max(\r\n this.initial,\r\n this.secondary,\r\n this._getMax()\r\n );\r\n\r\n this.min = Math.min(\r\n this.fit,\r\n this.initial,\r\n this.secondary\r\n );\r\n\r\n if (this.pswp) {\r\n this.pswp.dispatch('zoomLevelsUpdate', { zoomLevels: this, slideData: this.itemData });\r\n }\r\n }\r\n\r\n /**\r\n * Parses user-defined zoom option.\r\n *\r\n * @private\r\n * @param {'initial' | 'secondary' | 'max'} optionPrefix Zoom level option prefix (initial, secondary, max)\r\n * @returns { number | undefined }\r\n */\r\n _parseZoomLevelOption(optionPrefix) {\r\n const optionName = /** @type {'initialZoomLevel' | 'secondaryZoomLevel' | 'maxZoomLevel'} */ (\r\n optionPrefix + 'ZoomLevel'\r\n );\r\n const optionValue = this.options[optionName];\r\n\r\n if (!optionValue) {\r\n return;\r\n }\r\n\r\n if (typeof optionValue === 'function') {\r\n return optionValue(this);\r\n }\r\n\r\n if (optionValue === 'fill') {\r\n return this.fill;\r\n }\r\n\r\n if (optionValue === 'fit') {\r\n return this.fit;\r\n }\r\n\r\n return Number(optionValue);\r\n }\r\n\r\n /**\r\n * Get zoom level to which image will be zoomed after double-tap gesture,\r\n * or when user clicks on zoom icon,\r\n * or mouse-click on image itself.\r\n * If you return 1 image will be zoomed to its original size.\r\n *\r\n * @private\r\n * @return {number}\r\n */\r\n _getSecondary() {\r\n let currZoomLevel = this._parseZoomLevelOption('secondary');\r\n\r\n if (currZoomLevel) {\r\n return currZoomLevel;\r\n }\r\n\r\n // 3x of \"fit\" state, but not larger than original\r\n currZoomLevel = Math.min(1, this.fit * 3);\r\n\r\n if (this.elementSize && currZoomLevel * this.elementSize.x > MAX_IMAGE_WIDTH) {\r\n currZoomLevel = MAX_IMAGE_WIDTH / this.elementSize.x;\r\n }\r\n\r\n return currZoomLevel;\r\n }\r\n\r\n /**\r\n * Get initial image zoom level.\r\n *\r\n * @private\r\n * @return {number}\r\n */\r\n _getInitial() {\r\n return this._parseZoomLevelOption('initial') || this.fit;\r\n }\r\n\r\n /**\r\n * Maximum zoom level when user zooms\r\n * via zoom/pinch gesture,\r\n * via cmd/ctrl-wheel or via trackpad.\r\n *\r\n * @private\r\n * @return {number}\r\n */\r\n _getMax() {\r\n // max zoom level is x4 from \"fit state\",\r\n // used for zoom gesture and ctrl/trackpad zoom\r\n return this._parseZoomLevelOption('max') || Math.max(1, this.fit * 4);\r\n }\r\n}\r\n\r\nexport default ZoomLevel;\r\n","/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n\r\n/**\r\n * @typedef {_SlideData & Record} SlideData\r\n * @typedef {Object} _SlideData\r\n * @prop {HTMLElement} [element] thumbnail element\r\n * @prop {string} [src] image URL\r\n * @prop {string} [srcset] image srcset\r\n * @prop {number} [w] image width (deprecated)\r\n * @prop {number} [h] image height (deprecated)\r\n * @prop {number} [width] image width\r\n * @prop {number} [height] image height\r\n * @prop {string} [msrc] placeholder image URL that's displayed before large image is loaded\r\n * @prop {string} [alt] image alt text\r\n * @prop {boolean} [thumbCropped] whether thumbnail is cropped client-side or not\r\n * @prop {string} [html] html content of a slide\r\n * @prop {'image' | 'html' | string} [type] slide type\r\n */\r\n\r\nimport {\r\n createElement,\r\n setTransform,\r\n equalizePoints,\r\n roundPoint,\r\n toTransformString,\r\n clamp,\r\n} from '../util/util.js';\r\n\r\nimport PanBounds from './pan-bounds.js';\r\nimport ZoomLevel from './zoom-level.js';\r\nimport { getPanAreaSize } from '../util/viewport-size.js';\r\n\r\n/**\r\n * Renders and allows to control a single slide\r\n */\r\nclass Slide {\r\n /**\r\n * @param {SlideData} data\r\n * @param {number} index\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(data, index, pswp) {\r\n this.data = data;\r\n this.index = index;\r\n this.pswp = pswp;\r\n this.isActive = (index === pswp.currIndex);\r\n this.currentResolution = 0;\r\n /** @type {Point} */\r\n this.panAreaSize = { x: 0, y: 0 };\r\n /** @type {Point} */\r\n this.pan = { x: 0, y: 0 };\r\n\r\n this.isFirstSlide = (this.isActive && !pswp.opener.isOpen);\r\n\r\n this.zoomLevels = new ZoomLevel(pswp.options, data, index, pswp);\r\n\r\n this.pswp.dispatch('gettingData', {\r\n slide: this,\r\n data: this.data,\r\n index\r\n });\r\n\r\n this.content = this.pswp.contentLoader.getContentBySlide(this);\r\n this.container = createElement('pswp__zoom-wrap', 'div');\r\n /** @type {HTMLElement | null} */\r\n this.holderElement = null;\r\n\r\n this.currZoomLevel = 1;\r\n /** @type {number} */\r\n this.width = this.content.width;\r\n /** @type {number} */\r\n this.height = this.content.height;\r\n this.heavyAppended = false;\r\n this.bounds = new PanBounds(this);\r\n\r\n this.prevDisplayedWidth = -1;\r\n this.prevDisplayedHeight = -1;\r\n\r\n this.pswp.dispatch('slideInit', { slide: this });\r\n }\r\n\r\n /**\r\n * If this slide is active/current/visible\r\n *\r\n * @param {boolean} isActive\r\n */\r\n setIsActive(isActive) {\r\n if (isActive && !this.isActive) {\r\n // slide just became active\r\n this.activate();\r\n } else if (!isActive && this.isActive) {\r\n // slide just became non-active\r\n this.deactivate();\r\n }\r\n }\r\n\r\n /**\r\n * Appends slide content to DOM\r\n *\r\n * @param {HTMLElement} holderElement\r\n */\r\n append(holderElement) {\r\n this.holderElement = holderElement;\r\n\r\n this.container.style.transformOrigin = '0 0';\r\n\r\n // Slide appended to DOM\r\n if (!this.data) {\r\n return;\r\n }\r\n\r\n this.calculateSize();\r\n\r\n this.load();\r\n this.updateContentSize();\r\n this.appendHeavy();\r\n\r\n this.holderElement.appendChild(this.container);\r\n\r\n this.zoomAndPanToInitial();\r\n\r\n this.pswp.dispatch('firstZoomPan', { slide: this });\r\n\r\n this.applyCurrentZoomPan();\r\n\r\n this.pswp.dispatch('afterSetContent', { slide: this });\r\n\r\n if (this.isActive) {\r\n this.activate();\r\n }\r\n }\r\n\r\n load() {\r\n this.content.load(false);\r\n this.pswp.dispatch('slideLoad', { slide: this });\r\n }\r\n\r\n /**\r\n * Append \"heavy\" DOM elements\r\n *\r\n * This may depend on a type of slide,\r\n * but generally these are large images.\r\n */\r\n appendHeavy() {\r\n const { pswp } = this;\r\n const appendHeavyNearby = true; // todo\r\n\r\n // Avoid appending heavy elements during animations\r\n if (this.heavyAppended\r\n || !pswp.opener.isOpen\r\n || pswp.mainScroll.isShifted()\r\n || (!this.isActive && !appendHeavyNearby)) {\r\n return;\r\n }\r\n\r\n if (this.pswp.dispatch('appendHeavy', { slide: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n this.heavyAppended = true;\r\n\r\n this.content.append();\r\n\r\n this.pswp.dispatch('appendHeavyContent', { slide: this });\r\n }\r\n\r\n /**\r\n * Triggered when this slide is active (selected).\r\n *\r\n * If it's part of opening/closing transition -\r\n * activate() will trigger after the transition is ended.\r\n */\r\n activate() {\r\n this.isActive = true;\r\n this.appendHeavy();\r\n this.content.activate();\r\n this.pswp.dispatch('slideActivate', { slide: this });\r\n }\r\n\r\n /**\r\n * Triggered when this slide becomes inactive.\r\n *\r\n * Slide can become inactive only after it was active.\r\n */\r\n deactivate() {\r\n this.isActive = false;\r\n this.content.deactivate();\r\n\r\n if (this.currZoomLevel !== this.zoomLevels.initial) {\r\n // allow filtering\r\n this.calculateSize();\r\n }\r\n\r\n // reset zoom level\r\n this.currentResolution = 0;\r\n this.zoomAndPanToInitial();\r\n this.applyCurrentZoomPan();\r\n this.updateContentSize();\r\n\r\n this.pswp.dispatch('slideDeactivate', { slide: this });\r\n }\r\n\r\n /**\r\n * The slide should destroy itself, it will never be used again.\r\n * (unbind all events and destroy internal components)\r\n */\r\n destroy() {\r\n this.content.hasSlide = false;\r\n this.content.remove();\r\n this.container.remove();\r\n this.pswp.dispatch('slideDestroy', { slide: this });\r\n }\r\n\r\n resize() {\r\n if (this.currZoomLevel === this.zoomLevels.initial || !this.isActive) {\r\n // Keep initial zoom level if it was before the resize,\r\n // as well as when this slide is not active\r\n\r\n // Reset position and scale to original state\r\n this.calculateSize();\r\n this.currentResolution = 0;\r\n this.zoomAndPanToInitial();\r\n this.applyCurrentZoomPan();\r\n this.updateContentSize();\r\n } else {\r\n // readjust pan position if it's beyond the bounds\r\n this.calculateSize();\r\n this.bounds.update(this.currZoomLevel);\r\n this.panTo(this.pan.x, this.pan.y);\r\n }\r\n }\r\n\r\n\r\n /**\r\n * Apply size to current slide content,\r\n * based on the current resolution and scale.\r\n *\r\n * @param {boolean} [force] if size should be updated even if dimensions weren't changed\r\n */\r\n updateContentSize(force) {\r\n // Use initial zoom level\r\n // if resolution is not defined (user didn't zoom yet)\r\n const scaleMultiplier = this.currentResolution || this.zoomLevels.initial;\r\n\r\n if (!scaleMultiplier) {\r\n return;\r\n }\r\n\r\n const width = Math.round(this.width * scaleMultiplier) || this.pswp.viewportSize.x;\r\n const height = Math.round(this.height * scaleMultiplier) || this.pswp.viewportSize.y;\r\n\r\n if (!this.sizeChanged(width, height) && !force) {\r\n return;\r\n }\r\n this.content.setDisplayedSize(width, height);\r\n }\r\n\r\n /**\r\n * @param {number} width\r\n * @param {number} height\r\n */\r\n sizeChanged(width, height) {\r\n if (width !== this.prevDisplayedWidth\r\n || height !== this.prevDisplayedHeight) {\r\n this.prevDisplayedWidth = width;\r\n this.prevDisplayedHeight = height;\r\n return true;\r\n }\r\n\r\n return false;\r\n }\r\n\r\n /** @returns {HTMLImageElement | HTMLDivElement | null | undefined} */\r\n getPlaceholderElement() {\r\n return this.content.placeholder?.element;\r\n }\r\n\r\n /**\r\n * Zoom current slide image to...\r\n *\r\n * @param {number} destZoomLevel Destination zoom level.\r\n * @param {Point} [centerPoint]\r\n * Transform origin center point, or false if viewport center should be used.\r\n * @param {number | false} [transitionDuration] Transition duration, may be set to 0.\r\n * @param {boolean} [ignoreBounds] Minimum and maximum zoom levels will be ignored.\r\n */\r\n zoomTo(destZoomLevel, centerPoint, transitionDuration, ignoreBounds) {\r\n const { pswp } = this;\r\n if (!this.isZoomable()\r\n || pswp.mainScroll.isShifted()) {\r\n return;\r\n }\r\n\r\n pswp.dispatch('beforeZoomTo', {\r\n destZoomLevel, centerPoint, transitionDuration\r\n });\r\n\r\n // stop all pan and zoom transitions\r\n pswp.animations.stopAllPan();\r\n\r\n // if (!centerPoint) {\r\n // centerPoint = pswp.getViewportCenterPoint();\r\n // }\r\n\r\n const prevZoomLevel = this.currZoomLevel;\r\n\r\n if (!ignoreBounds) {\r\n destZoomLevel = clamp(destZoomLevel, this.zoomLevels.min, this.zoomLevels.max);\r\n }\r\n\r\n // if (transitionDuration === undefined) {\r\n // transitionDuration = this.pswp.options.zoomAnimationDuration;\r\n // }\r\n\r\n this.setZoomLevel(destZoomLevel);\r\n this.pan.x = this.calculateZoomToPanOffset('x', centerPoint, prevZoomLevel);\r\n this.pan.y = this.calculateZoomToPanOffset('y', centerPoint, prevZoomLevel);\r\n roundPoint(this.pan);\r\n\r\n const finishTransition = () => {\r\n this._setResolution(destZoomLevel);\r\n this.applyCurrentZoomPan();\r\n };\r\n\r\n if (!transitionDuration) {\r\n finishTransition();\r\n } else {\r\n pswp.animations.startTransition({\r\n isPan: true,\r\n name: 'zoomTo',\r\n target: this.container,\r\n transform: this.getCurrentTransform(),\r\n onComplete: finishTransition,\r\n duration: transitionDuration,\r\n easing: pswp.options.easing\r\n });\r\n }\r\n }\r\n\r\n /**\r\n * @param {Point} [centerPoint]\r\n */\r\n toggleZoom(centerPoint) {\r\n this.zoomTo(\r\n this.currZoomLevel === this.zoomLevels.initial\r\n ? this.zoomLevels.secondary : this.zoomLevels.initial,\r\n centerPoint,\r\n this.pswp.options.zoomAnimationDuration\r\n );\r\n }\r\n\r\n /**\r\n * Updates zoom level property and recalculates new pan bounds,\r\n * unlike zoomTo it does not apply transform (use applyCurrentZoomPan)\r\n *\r\n * @param {number} currZoomLevel\r\n */\r\n setZoomLevel(currZoomLevel) {\r\n this.currZoomLevel = currZoomLevel;\r\n this.bounds.update(this.currZoomLevel);\r\n }\r\n\r\n /**\r\n * Get pan position after zoom at a given `point`.\r\n *\r\n * Always call setZoomLevel(newZoomLevel) beforehand to recalculate\r\n * pan bounds according to the new zoom level.\r\n *\r\n * @param {'x' | 'y'} axis\r\n * @param {Point} [point]\r\n * point based on which zoom is performed, usually refers to the current mouse position,\r\n * if false - viewport center will be used.\r\n * @param {number} [prevZoomLevel] Zoom level before new zoom was applied.\r\n * @returns {number}\r\n */\r\n calculateZoomToPanOffset(axis, point, prevZoomLevel) {\r\n const totalPanDistance = this.bounds.max[axis] - this.bounds.min[axis];\r\n if (totalPanDistance === 0) {\r\n return this.bounds.center[axis];\r\n }\r\n\r\n if (!point) {\r\n point = this.pswp.getViewportCenterPoint();\r\n }\r\n\r\n if (!prevZoomLevel) {\r\n prevZoomLevel = this.zoomLevels.initial;\r\n }\r\n\r\n const zoomFactor = this.currZoomLevel / prevZoomLevel;\r\n return this.bounds.correctPan(\r\n axis,\r\n (this.pan[axis] - point[axis]) * zoomFactor + point[axis]\r\n );\r\n }\r\n\r\n /**\r\n * Apply pan and keep it within bounds.\r\n *\r\n * @param {number} panX\r\n * @param {number} panY\r\n */\r\n panTo(panX, panY) {\r\n this.pan.x = this.bounds.correctPan('x', panX);\r\n this.pan.y = this.bounds.correctPan('y', panY);\r\n this.applyCurrentZoomPan();\r\n }\r\n\r\n /**\r\n * If the slide in the current state can be panned by the user\r\n * @returns {boolean}\r\n */\r\n isPannable() {\r\n return Boolean(this.width) && (this.currZoomLevel > this.zoomLevels.fit);\r\n }\r\n\r\n /**\r\n * If the slide can be zoomed\r\n * @returns {boolean}\r\n */\r\n isZoomable() {\r\n return Boolean(this.width) && this.content.isZoomable();\r\n }\r\n\r\n /**\r\n * Apply transform and scale based on\r\n * the current pan position (this.pan) and zoom level (this.currZoomLevel)\r\n */\r\n applyCurrentZoomPan() {\r\n this._applyZoomTransform(this.pan.x, this.pan.y, this.currZoomLevel);\r\n if (this === this.pswp.currSlide) {\r\n this.pswp.dispatch('zoomPanUpdate', { slide: this });\r\n }\r\n }\r\n\r\n zoomAndPanToInitial() {\r\n this.currZoomLevel = this.zoomLevels.initial;\r\n\r\n // pan according to the zoom level\r\n this.bounds.update(this.currZoomLevel);\r\n equalizePoints(this.pan, this.bounds.center);\r\n this.pswp.dispatch('initialZoomPan', { slide: this });\r\n }\r\n\r\n /**\r\n * Set translate and scale based on current resolution\r\n *\r\n * @param {number} x\r\n * @param {number} y\r\n * @param {number} zoom\r\n * @private\r\n */\r\n _applyZoomTransform(x, y, zoom) {\r\n zoom /= this.currentResolution || this.zoomLevels.initial;\r\n setTransform(this.container, x, y, zoom);\r\n }\r\n\r\n calculateSize() {\r\n const { pswp } = this;\r\n\r\n equalizePoints(\r\n this.panAreaSize,\r\n getPanAreaSize(pswp.options, pswp.viewportSize, this.data, this.index)\r\n );\r\n\r\n this.zoomLevels.update(this.width, this.height, this.panAreaSize);\r\n\r\n pswp.dispatch('calcSlideSize', {\r\n slide: this\r\n });\r\n }\r\n\r\n /** @returns {string} */\r\n getCurrentTransform() {\r\n const scale = this.currZoomLevel / (this.currentResolution || this.zoomLevels.initial);\r\n return toTransformString(this.pan.x, this.pan.y, scale);\r\n }\r\n\r\n /**\r\n * Set resolution and re-render the image.\r\n *\r\n * For example, if the real image size is 2000x1500,\r\n * and resolution is 0.5 - it will be rendered as 1000x750.\r\n *\r\n * Image with zoom level 2 and resolution 0.5 is\r\n * the same as image with zoom level 1 and resolution 1.\r\n *\r\n * Used to optimize animations and make\r\n * sure that browser renders image in the highest quality.\r\n * Also used by responsive images to load the correct one.\r\n *\r\n * @param {number} newResolution\r\n */\r\n _setResolution(newResolution) {\r\n if (newResolution === this.currentResolution) {\r\n return;\r\n }\r\n\r\n this.currentResolution = newResolution;\r\n this.updateContentSize();\r\n\r\n this.pswp.dispatch('resolutionChanged');\r\n }\r\n}\r\n\r\nexport default Slide;\r\n","import {\r\n equalizePoints, roundPoint, clamp\r\n} from '../util/util.js';\r\n\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('./gestures.js').default} Gestures */\r\n\r\nconst PAN_END_FRICTION = 0.35;\r\nconst VERTICAL_DRAG_FRICTION = 0.6;\r\n\r\n// 1 corresponds to the third of viewport height\r\nconst MIN_RATIO_TO_CLOSE = 0.4;\r\n\r\n// Minimum speed required to navigate\r\n// to next or previous slide\r\nconst MIN_NEXT_SLIDE_SPEED = 0.5;\r\n\r\n/**\r\n * @param {number} initialVelocity\r\n * @param {number} decelerationRate\r\n * @returns {number}\r\n */\r\nfunction project(initialVelocity, decelerationRate) {\r\n return initialVelocity * decelerationRate / (1 - decelerationRate);\r\n}\r\n\r\n/**\r\n * Handles single pointer dragging\r\n */\r\nclass DragHandler {\r\n /**\r\n * @param {Gestures} gestures\r\n */\r\n constructor(gestures) {\r\n this.gestures = gestures;\r\n this.pswp = gestures.pswp;\r\n /** @type {Point} */\r\n this.startPan = { x: 0, y: 0 };\r\n }\r\n\r\n start() {\r\n if (this.pswp.currSlide) {\r\n equalizePoints(this.startPan, this.pswp.currSlide.pan);\r\n }\r\n this.pswp.animations.stopAll();\r\n }\r\n\r\n change() {\r\n const { p1, prevP1, dragAxis } = this.gestures;\r\n const { currSlide } = this.pswp;\r\n\r\n if (dragAxis === 'y'\r\n && this.pswp.options.closeOnVerticalDrag\r\n && (currSlide && currSlide.currZoomLevel <= currSlide.zoomLevels.fit)\r\n && !this.gestures.isMultitouch) {\r\n // Handle vertical drag to close\r\n const panY = currSlide.pan.y + (p1.y - prevP1.y);\r\n if (!this.pswp.dispatch('verticalDrag', { panY }).defaultPrevented) {\r\n this._setPanWithFriction('y', panY, VERTICAL_DRAG_FRICTION);\r\n const bgOpacity = 1 - Math.abs(this._getVerticalDragRatio(currSlide.pan.y));\r\n this.pswp.applyBgOpacity(bgOpacity);\r\n currSlide.applyCurrentZoomPan();\r\n }\r\n } else {\r\n const mainScrollChanged = this._panOrMoveMainScroll('x');\r\n if (!mainScrollChanged) {\r\n this._panOrMoveMainScroll('y');\r\n\r\n if (currSlide) {\r\n roundPoint(currSlide.pan);\r\n currSlide.applyCurrentZoomPan();\r\n }\r\n }\r\n }\r\n }\r\n\r\n end() {\r\n const { velocity } = this.gestures;\r\n const { mainScroll, currSlide } = this.pswp;\r\n let indexDiff = 0;\r\n\r\n this.pswp.animations.stopAll();\r\n\r\n // Handle main scroll if it's shifted\r\n if (mainScroll.isShifted()) {\r\n // Position of the main scroll relative to the viewport\r\n const mainScrollShiftDiff = mainScroll.x - mainScroll.getCurrSlideX();\r\n\r\n // Ratio between 0 and 1:\r\n // 0 - slide is not visible at all,\r\n // 0.5 - half of the slide is visible\r\n // 1 - slide is fully visible\r\n const currentSlideVisibilityRatio = (mainScrollShiftDiff / this.pswp.viewportSize.x);\r\n\r\n // Go next slide.\r\n //\r\n // - if velocity and its direction is matched,\r\n // and we see at least tiny part of the next slide\r\n //\r\n // - or if we see less than 50% of the current slide\r\n // and velocity is close to 0\r\n //\r\n if ((velocity.x < -MIN_NEXT_SLIDE_SPEED && currentSlideVisibilityRatio < 0)\r\n || (velocity.x < 0.1 && currentSlideVisibilityRatio < -0.5)) {\r\n // Go to next slide\r\n indexDiff = 1;\r\n velocity.x = Math.min(velocity.x, 0);\r\n } else if ((velocity.x > MIN_NEXT_SLIDE_SPEED && currentSlideVisibilityRatio > 0)\r\n || (velocity.x > -0.1 && currentSlideVisibilityRatio > 0.5)) {\r\n // Go to prev slide\r\n indexDiff = -1;\r\n velocity.x = Math.max(velocity.x, 0);\r\n }\r\n\r\n mainScroll.moveIndexBy(indexDiff, true, velocity.x);\r\n }\r\n\r\n // Restore zoom level\r\n if ((currSlide && currSlide.currZoomLevel > currSlide.zoomLevels.max)\r\n || this.gestures.isMultitouch) {\r\n this.gestures.zoomLevels.correctZoomPan(true);\r\n } else {\r\n // we run two animations instead of one,\r\n // as each axis has own pan boundaries and thus different spring function\r\n // (correctZoomPan does not have this functionality,\r\n // it animates all properties with single timing function)\r\n this._finishPanGestureForAxis('x');\r\n this._finishPanGestureForAxis('y');\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {'x' | 'y'} axis\r\n */\r\n _finishPanGestureForAxis(axis) {\r\n const { velocity } = this.gestures;\r\n const { currSlide } = this.pswp;\r\n\r\n if (!currSlide) {\r\n return;\r\n }\r\n\r\n const { pan, bounds } = currSlide;\r\n const panPos = pan[axis];\r\n const restoreBgOpacity = (this.pswp.bgOpacity < 1 && axis === 'y');\r\n\r\n // 0.995 means - scroll view loses 0.5% of its velocity per millisecond\r\n // Increasing this number will reduce travel distance\r\n const decelerationRate = 0.995; // 0.99\r\n\r\n // Pan position if there is no bounds\r\n const projectedPosition = panPos + project(velocity[axis], decelerationRate);\r\n\r\n if (restoreBgOpacity) {\r\n const vDragRatio = this._getVerticalDragRatio(panPos);\r\n const projectedVDragRatio = this._getVerticalDragRatio(projectedPosition);\r\n\r\n // If we are above and moving upwards,\r\n // or if we are below and moving downwards\r\n if ((vDragRatio < 0 && projectedVDragRatio < -MIN_RATIO_TO_CLOSE)\r\n || (vDragRatio > 0 && projectedVDragRatio > MIN_RATIO_TO_CLOSE)) {\r\n this.pswp.close();\r\n return;\r\n }\r\n }\r\n\r\n // Pan position with corrected bounds\r\n const correctedPanPosition = bounds.correctPan(axis, projectedPosition);\r\n\r\n // Exit if pan position should not be changed\r\n // or if speed it too low\r\n if (panPos === correctedPanPosition) {\r\n return;\r\n }\r\n\r\n // Overshoot if the final position is out of pan bounds\r\n const dampingRatio = (correctedPanPosition === projectedPosition) ? 1 : 0.82;\r\n\r\n const initialBgOpacity = this.pswp.bgOpacity;\r\n const totalPanDist = correctedPanPosition - panPos;\r\n\r\n this.pswp.animations.startSpring({\r\n name: 'panGesture' + axis,\r\n isPan: true,\r\n start: panPos,\r\n end: correctedPanPosition,\r\n velocity: velocity[axis],\r\n dampingRatio,\r\n onUpdate: (pos) => {\r\n // Animate opacity of background relative to Y pan position of an image\r\n if (restoreBgOpacity && this.pswp.bgOpacity < 1) {\r\n // 0 - start of animation, 1 - end of animation\r\n const animationProgressRatio = 1 - (correctedPanPosition - pos) / totalPanDist;\r\n\r\n // We clamp opacity to keep it between 0 and 1.\r\n // As progress ratio can be larger than 1 due to overshoot,\r\n // and we do not want to bounce opacity.\r\n this.pswp.applyBgOpacity(clamp(\r\n initialBgOpacity + (1 - initialBgOpacity) * animationProgressRatio,\r\n 0,\r\n 1\r\n ));\r\n }\r\n\r\n pan[axis] = Math.floor(pos);\r\n currSlide.applyCurrentZoomPan();\r\n },\r\n });\r\n }\r\n\r\n /**\r\n * Update position of the main scroll,\r\n * or/and update pan position of the current slide.\r\n *\r\n * Should return true if it changes (or can change) main scroll.\r\n *\r\n * @private\r\n * @param {'x' | 'y'} axis\r\n * @returns {boolean}\r\n */\r\n _panOrMoveMainScroll(axis) {\r\n const { p1, dragAxis, prevP1, isMultitouch } = this.gestures;\r\n const { currSlide, mainScroll } = this.pswp;\r\n const delta = (p1[axis] - prevP1[axis]);\r\n const newMainScrollX = mainScroll.x + delta;\r\n\r\n if (!delta || !currSlide) {\r\n return false;\r\n }\r\n\r\n // Always move main scroll if image can not be panned\r\n if (axis === 'x' && !currSlide.isPannable() && !isMultitouch) {\r\n mainScroll.moveTo(newMainScrollX, true);\r\n return true; // changed main scroll\r\n }\r\n\r\n const { bounds } = currSlide;\r\n const newPan = currSlide.pan[axis] + delta;\r\n\r\n if (this.pswp.options.allowPanToNext\r\n && dragAxis === 'x'\r\n && axis === 'x'\r\n && !isMultitouch) {\r\n const currSlideMainScrollX = mainScroll.getCurrSlideX();\r\n\r\n // Position of the main scroll relative to the viewport\r\n const mainScrollShiftDiff = mainScroll.x - currSlideMainScrollX;\r\n\r\n const isLeftToRight = delta > 0;\r\n const isRightToLeft = !isLeftToRight;\r\n\r\n if (newPan > bounds.min[axis] && isLeftToRight) {\r\n // Panning from left to right, beyond the left edge\r\n\r\n // Wether the image was at minimum pan position (or less)\r\n // when this drag gesture started.\r\n // Minimum pan position refers to the left edge of the image.\r\n const wasAtMinPanPosition = (bounds.min[axis] <= this.startPan[axis]);\r\n\r\n if (wasAtMinPanPosition) {\r\n mainScroll.moveTo(newMainScrollX, true);\r\n return true;\r\n } else {\r\n this._setPanWithFriction(axis, newPan);\r\n //currSlide.pan[axis] = newPan;\r\n }\r\n } else if (newPan < bounds.max[axis] && isRightToLeft) {\r\n // Paning from right to left, beyond the right edge\r\n\r\n // Maximum pan position refers to the right edge of the image.\r\n const wasAtMaxPanPosition = (this.startPan[axis] <= bounds.max[axis]);\r\n\r\n if (wasAtMaxPanPosition) {\r\n mainScroll.moveTo(newMainScrollX, true);\r\n return true;\r\n } else {\r\n this._setPanWithFriction(axis, newPan);\r\n //currSlide.pan[axis] = newPan;\r\n }\r\n } else {\r\n // If main scroll is shifted\r\n if (mainScrollShiftDiff !== 0) {\r\n // If main scroll is shifted right\r\n if (mainScrollShiftDiff > 0 /*&& isRightToLeft*/) {\r\n mainScroll.moveTo(Math.max(newMainScrollX, currSlideMainScrollX), true);\r\n return true;\r\n } else if (mainScrollShiftDiff < 0 /*&& isLeftToRight*/) {\r\n // Main scroll is shifted left (Position is less than 0 comparing to the viewport 0)\r\n mainScroll.moveTo(Math.min(newMainScrollX, currSlideMainScrollX), true);\r\n return true;\r\n }\r\n } else {\r\n // We are within pan bounds, so just pan\r\n this._setPanWithFriction(axis, newPan);\r\n }\r\n }\r\n } else {\r\n if (axis === 'y') {\r\n // Do not pan vertically if main scroll is shifted o\r\n if (!mainScroll.isShifted() && bounds.min.y !== bounds.max.y) {\r\n this._setPanWithFriction(axis, newPan);\r\n }\r\n } else {\r\n this._setPanWithFriction(axis, newPan);\r\n }\r\n }\r\n\r\n return false;\r\n }\r\n\r\n // If we move above - the ratio is negative\r\n // If we move below the ratio is positive\r\n\r\n /**\r\n * Relation between pan Y position and third of viewport height.\r\n *\r\n * When we are at initial position (center bounds) - the ratio is 0,\r\n * if position is shifted upwards - the ratio is negative,\r\n * if position is shifted downwards - the ratio is positive.\r\n *\r\n * @private\r\n * @param {number} panY The current pan Y position.\r\n * @returns {number}\r\n */\r\n _getVerticalDragRatio(panY) {\r\n return (panY - (this.pswp.currSlide?.bounds.center.y ?? 0)) / (this.pswp.viewportSize.y / 3);\r\n }\r\n\r\n /**\r\n * Set pan position of the current slide.\r\n * Apply friction if the position is beyond the pan bounds,\r\n * or if custom friction is defined.\r\n *\r\n * @private\r\n * @param {'x' | 'y'} axis\r\n * @param {number} potentialPan\r\n * @param {number} [customFriction] (0.1 - 1)\r\n */\r\n _setPanWithFriction(axis, potentialPan, customFriction) {\r\n const { currSlide } = this.pswp;\r\n\r\n if (!currSlide) {\r\n return;\r\n }\r\n\r\n const { pan, bounds } = currSlide;\r\n const correctedPan = bounds.correctPan(axis, potentialPan);\r\n // If we are out of pan bounds\r\n if (correctedPan !== potentialPan || customFriction) {\r\n const delta = Math.round(potentialPan - pan[axis]);\r\n pan[axis] += delta * (customFriction || PAN_END_FRICTION);\r\n } else {\r\n pan[axis] = potentialPan;\r\n }\r\n }\r\n}\r\n\r\nexport default DragHandler;\r\n","import {\r\n equalizePoints, getDistanceBetween, clamp, pointsEqual\r\n} from '../util/util.js';\r\n\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('./gestures.js').default} Gestures */\r\n\r\nconst UPPER_ZOOM_FRICTION = 0.05;\r\nconst LOWER_ZOOM_FRICTION = 0.15;\r\n\r\n\r\n/**\r\n * Get center point between two points\r\n *\r\n * @param {Point} p\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {Point}\r\n */\r\nfunction getZoomPointsCenter(p, p1, p2) {\r\n p.x = (p1.x + p2.x) / 2;\r\n p.y = (p1.y + p2.y) / 2;\r\n return p;\r\n}\r\n\r\nclass ZoomHandler {\r\n /**\r\n * @param {Gestures} gestures\r\n */\r\n constructor(gestures) {\r\n this.gestures = gestures;\r\n /**\r\n * @private\r\n * @type {Point}\r\n */\r\n this._startPan = { x: 0, y: 0 };\r\n /**\r\n * @private\r\n * @type {Point}\r\n */\r\n this._startZoomPoint = { x: 0, y: 0 };\r\n /**\r\n * @private\r\n * @type {Point}\r\n */\r\n this._zoomPoint = { x: 0, y: 0 };\r\n /** @private */\r\n this._wasOverFitZoomLevel = false;\r\n /** @private */\r\n this._startZoomLevel = 1;\r\n }\r\n\r\n start() {\r\n const { currSlide } = this.gestures.pswp;\r\n if (currSlide) {\r\n this._startZoomLevel = currSlide.currZoomLevel;\r\n equalizePoints(this._startPan, currSlide.pan);\r\n }\r\n\r\n this.gestures.pswp.animations.stopAllPan();\r\n this._wasOverFitZoomLevel = false;\r\n }\r\n\r\n change() {\r\n const { p1, startP1, p2, startP2, pswp } = this.gestures;\r\n const { currSlide } = pswp;\r\n\r\n if (!currSlide) {\r\n return;\r\n }\r\n\r\n const minZoomLevel = currSlide.zoomLevels.min;\r\n const maxZoomLevel = currSlide.zoomLevels.max;\r\n\r\n if (!currSlide.isZoomable() || pswp.mainScroll.isShifted()) {\r\n return;\r\n }\r\n\r\n getZoomPointsCenter(this._startZoomPoint, startP1, startP2);\r\n getZoomPointsCenter(this._zoomPoint, p1, p2);\r\n\r\n let currZoomLevel = (1 / getDistanceBetween(startP1, startP2))\r\n * getDistanceBetween(p1, p2)\r\n * this._startZoomLevel;\r\n\r\n // slightly over the zoom.fit\r\n if (currZoomLevel > currSlide.zoomLevels.initial + (currSlide.zoomLevels.initial / 15)) {\r\n this._wasOverFitZoomLevel = true;\r\n }\r\n\r\n if (currZoomLevel < minZoomLevel) {\r\n if (pswp.options.pinchToClose\r\n && !this._wasOverFitZoomLevel\r\n && this._startZoomLevel <= currSlide.zoomLevels.initial) {\r\n // fade out background if zooming out\r\n const bgOpacity = 1 - ((minZoomLevel - currZoomLevel) / (minZoomLevel / 1.2));\r\n if (!pswp.dispatch('pinchClose', { bgOpacity }).defaultPrevented) {\r\n pswp.applyBgOpacity(bgOpacity);\r\n }\r\n } else {\r\n // Apply the friction if zoom level is below the min\r\n currZoomLevel = minZoomLevel - (minZoomLevel - currZoomLevel) * LOWER_ZOOM_FRICTION;\r\n }\r\n } else if (currZoomLevel > maxZoomLevel) {\r\n // Apply the friction if zoom level is above the max\r\n currZoomLevel = maxZoomLevel + (currZoomLevel - maxZoomLevel) * UPPER_ZOOM_FRICTION;\r\n }\r\n\r\n currSlide.pan.x = this._calculatePanForZoomLevel('x', currZoomLevel);\r\n currSlide.pan.y = this._calculatePanForZoomLevel('y', currZoomLevel);\r\n\r\n currSlide.setZoomLevel(currZoomLevel);\r\n currSlide.applyCurrentZoomPan();\r\n }\r\n\r\n end() {\r\n const { pswp } = this.gestures;\r\n const { currSlide } = pswp;\r\n if ((!currSlide || currSlide.currZoomLevel < currSlide.zoomLevels.initial)\r\n && !this._wasOverFitZoomLevel\r\n && pswp.options.pinchToClose) {\r\n pswp.close();\r\n } else {\r\n this.correctZoomPan();\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {'x' | 'y'} axis\r\n * @param {number} currZoomLevel\r\n * @returns {number}\r\n */\r\n _calculatePanForZoomLevel(axis, currZoomLevel) {\r\n const zoomFactor = currZoomLevel / this._startZoomLevel;\r\n return this._zoomPoint[axis]\r\n - ((this._startZoomPoint[axis] - this._startPan[axis]) * zoomFactor);\r\n }\r\n\r\n /**\r\n * Correct currZoomLevel and pan if they are\r\n * beyond minimum or maximum values.\r\n * With animation.\r\n *\r\n * @param {boolean} [ignoreGesture]\r\n * Wether gesture coordinates should be ignored when calculating destination pan position.\r\n */\r\n correctZoomPan(ignoreGesture) {\r\n const { pswp } = this.gestures;\r\n const { currSlide } = pswp;\r\n\r\n if (!currSlide?.isZoomable()) {\r\n return;\r\n }\r\n\r\n if (this._zoomPoint.x === 0) {\r\n ignoreGesture = true;\r\n }\r\n\r\n const prevZoomLevel = currSlide.currZoomLevel;\r\n\r\n /** @type {number} */\r\n let destinationZoomLevel;\r\n let currZoomLevelNeedsChange = true;\r\n\r\n if (prevZoomLevel < currSlide.zoomLevels.initial) {\r\n destinationZoomLevel = currSlide.zoomLevels.initial;\r\n // zoom to min\r\n } else if (prevZoomLevel > currSlide.zoomLevels.max) {\r\n destinationZoomLevel = currSlide.zoomLevels.max;\r\n // zoom to max\r\n } else {\r\n currZoomLevelNeedsChange = false;\r\n destinationZoomLevel = prevZoomLevel;\r\n }\r\n\r\n const initialBgOpacity = pswp.bgOpacity;\r\n const restoreBgOpacity = pswp.bgOpacity < 1;\r\n\r\n const initialPan = equalizePoints({ x: 0, y: 0 }, currSlide.pan);\r\n let destinationPan = equalizePoints({ x: 0, y: 0 }, initialPan);\r\n\r\n if (ignoreGesture) {\r\n this._zoomPoint.x = 0;\r\n this._zoomPoint.y = 0;\r\n this._startZoomPoint.x = 0;\r\n this._startZoomPoint.y = 0;\r\n this._startZoomLevel = prevZoomLevel;\r\n equalizePoints(this._startPan, initialPan);\r\n }\r\n\r\n if (currZoomLevelNeedsChange) {\r\n destinationPan = {\r\n x: this._calculatePanForZoomLevel('x', destinationZoomLevel),\r\n y: this._calculatePanForZoomLevel('y', destinationZoomLevel)\r\n };\r\n }\r\n\r\n // set zoom level, so pan bounds are updated according to it\r\n currSlide.setZoomLevel(destinationZoomLevel);\r\n\r\n destinationPan = {\r\n x: currSlide.bounds.correctPan('x', destinationPan.x),\r\n y: currSlide.bounds.correctPan('y', destinationPan.y)\r\n };\r\n\r\n // return zoom level and its bounds to initial\r\n currSlide.setZoomLevel(prevZoomLevel);\r\n\r\n const panNeedsChange = !pointsEqual(destinationPan, initialPan);\r\n\r\n if (!panNeedsChange && !currZoomLevelNeedsChange && !restoreBgOpacity) {\r\n // update resolution after gesture\r\n currSlide._setResolution(destinationZoomLevel);\r\n currSlide.applyCurrentZoomPan();\r\n\r\n // nothing to animate\r\n return;\r\n }\r\n\r\n pswp.animations.stopAllPan();\r\n\r\n pswp.animations.startSpring({\r\n isPan: true,\r\n start: 0,\r\n end: 1000,\r\n velocity: 0,\r\n dampingRatio: 1,\r\n naturalFrequency: 40,\r\n onUpdate: (now) => {\r\n now /= 1000; // 0 - start, 1 - end\r\n\r\n if (panNeedsChange || currZoomLevelNeedsChange) {\r\n if (panNeedsChange) {\r\n currSlide.pan.x = initialPan.x + (destinationPan.x - initialPan.x) * now;\r\n currSlide.pan.y = initialPan.y + (destinationPan.y - initialPan.y) * now;\r\n }\r\n\r\n if (currZoomLevelNeedsChange) {\r\n const newZoomLevel = prevZoomLevel\r\n + (destinationZoomLevel - prevZoomLevel) * now;\r\n currSlide.setZoomLevel(newZoomLevel);\r\n }\r\n\r\n currSlide.applyCurrentZoomPan();\r\n }\r\n\r\n // Restore background opacity\r\n if (restoreBgOpacity && pswp.bgOpacity < 1) {\r\n // We clamp opacity to keep it between 0 and 1.\r\n // As progress ratio can be larger than 1 due to overshoot,\r\n // and we do not want to bounce opacity.\r\n pswp.applyBgOpacity(clamp(\r\n initialBgOpacity + (1 - initialBgOpacity) * now, 0, 1\r\n ));\r\n }\r\n },\r\n onComplete: () => {\r\n // update resolution after transition ends\r\n currSlide._setResolution(destinationZoomLevel);\r\n currSlide.applyCurrentZoomPan();\r\n }\r\n });\r\n }\r\n}\r\n\r\nexport default ZoomHandler;\r\n","/**\r\n * @template {string} T\r\n * @template {string} P\r\n * @typedef {import('../types.js').AddPostfix} AddPostfix\r\n */\r\n\r\n/** @typedef {import('./gestures.js').default} Gestures */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n\r\n/** @typedef {'imageClick' | 'bgClick' | 'tap' | 'doubleTap'} Actions */\r\n\r\n/**\r\n * Whether the tap was performed on the main slide\r\n * (rather than controls or caption).\r\n *\r\n * @param {PointerEvent} event\r\n * @returns {boolean}\r\n */\r\nfunction didTapOnMainContent(event) {\r\n return !!(/** @type {HTMLElement} */ (event.target).closest('.pswp__container'));\r\n}\r\n\r\n/**\r\n * Tap, double-tap handler.\r\n */\r\nclass TapHandler {\r\n /**\r\n * @param {Gestures} gestures\r\n */\r\n constructor(gestures) {\r\n this.gestures = gestures;\r\n }\r\n\r\n /**\r\n * @param {Point} point\r\n * @param {PointerEvent} originalEvent\r\n */\r\n click(point, originalEvent) {\r\n const targetClassList = /** @type {HTMLElement} */ (originalEvent.target).classList;\r\n const isImageClick = targetClassList.contains('pswp__img');\r\n const isBackgroundClick = targetClassList.contains('pswp__item')\r\n || targetClassList.contains('pswp__zoom-wrap');\r\n\r\n if (isImageClick) {\r\n this._doClickOrTapAction('imageClick', point, originalEvent);\r\n } else if (isBackgroundClick) {\r\n this._doClickOrTapAction('bgClick', point, originalEvent);\r\n }\r\n }\r\n\r\n /**\r\n * @param {Point} point\r\n * @param {PointerEvent} originalEvent\r\n */\r\n tap(point, originalEvent) {\r\n if (didTapOnMainContent(originalEvent)) {\r\n this._doClickOrTapAction('tap', point, originalEvent);\r\n }\r\n }\r\n\r\n /**\r\n * @param {Point} point\r\n * @param {PointerEvent} originalEvent\r\n */\r\n doubleTap(point, originalEvent) {\r\n if (didTapOnMainContent(originalEvent)) {\r\n this._doClickOrTapAction('doubleTap', point, originalEvent);\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {Actions} actionName\r\n * @param {Point} point\r\n * @param {PointerEvent} originalEvent\r\n */\r\n _doClickOrTapAction(actionName, point, originalEvent) {\r\n const { pswp } = this.gestures;\r\n const { currSlide } = pswp;\r\n const actionFullName = /** @type {AddPostfix} */ (actionName + 'Action');\r\n const optionValue = pswp.options[actionFullName];\r\n\r\n if (pswp.dispatch(actionFullName, { point, originalEvent }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (typeof optionValue === 'function') {\r\n optionValue.call(pswp, point, originalEvent);\r\n return;\r\n }\r\n\r\n switch (optionValue) {\r\n case 'close':\r\n case 'next':\r\n pswp[optionValue]();\r\n break;\r\n case 'zoom':\r\n currSlide?.toggleZoom(point);\r\n break;\r\n case 'zoom-or-close':\r\n // by default click zooms current image,\r\n // if it can not be zoomed - gallery will be closed\r\n if (currSlide?.isZoomable()\r\n && currSlide.zoomLevels.secondary !== currSlide.zoomLevels.initial) {\r\n currSlide.toggleZoom(point);\r\n } else if (pswp.options.clickToCloseNonZoomable) {\r\n pswp.close();\r\n }\r\n break;\r\n case 'toggle-controls':\r\n this.gestures.pswp.element?.classList.toggle('pswp--ui-visible');\r\n // if (_controlsVisible) {\r\n // _ui.hideControls();\r\n // } else {\r\n // _ui.showControls();\r\n // }\r\n break;\r\n }\r\n }\r\n}\r\n\r\nexport default TapHandler;\r\n","import {\r\n equalizePoints, pointsEqual, getDistanceBetween\r\n} from '../util/util.js';\r\n\r\nimport DragHandler from './drag-handler.js';\r\nimport ZoomHandler from './zoom-handler.js';\r\nimport TapHandler from './tap-handler.js';\r\n\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n\r\n// How far should user should drag\r\n// until we can determine that the gesture is swipe and its direction\r\nconst AXIS_SWIPE_HYSTERISIS = 10;\r\n//const PAN_END_FRICTION = 0.35;\r\n\r\nconst DOUBLE_TAP_DELAY = 300; // ms\r\nconst MIN_TAP_DISTANCE = 25; // px\r\n\r\n/**\r\n * Gestures class bind touch, pointer or mouse events\r\n * and emits drag to drag-handler and zoom events zoom-handler.\r\n *\r\n * Drag and zoom events are emited in requestAnimationFrame,\r\n * and only when one of pointers was actually changed.\r\n */\r\nclass Gestures {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n\r\n /** @type {'x' | 'y' | null} */\r\n this.dragAxis = null;\r\n\r\n // point objects are defined once and reused\r\n // PhotoSwipe keeps track only of two pointers, others are ignored\r\n /** @type {Point} */\r\n this.p1 = { x: 0, y: 0 }; // the first pressed pointer\r\n /** @type {Point} */\r\n this.p2 = { x: 0, y: 0 }; // the second pressed pointer\r\n /** @type {Point} */\r\n this.prevP1 = { x: 0, y: 0 };\r\n /** @type {Point} */\r\n this.prevP2 = { x: 0, y: 0 };\r\n /** @type {Point} */\r\n this.startP1 = { x: 0, y: 0 };\r\n /** @type {Point} */\r\n this.startP2 = { x: 0, y: 0 };\r\n /** @type {Point} */\r\n this.velocity = { x: 0, y: 0 };\r\n\r\n /** @type {Point}\r\n * @private\r\n */\r\n this._lastStartP1 = { x: 0, y: 0 };\r\n /** @type {Point}\r\n * @private\r\n */\r\n this._intervalP1 = { x: 0, y: 0 };\r\n /** @private */\r\n this._numActivePoints = 0;\r\n /** @type {Point[]}\r\n * @private\r\n */\r\n this._ongoingPointers = [];\r\n /** @private */\r\n this._touchEventEnabled = 'ontouchstart' in window;\r\n /** @private */\r\n this._pointerEventEnabled = !!(window.PointerEvent);\r\n this.supportsTouch = this._touchEventEnabled\r\n || (this._pointerEventEnabled && navigator.maxTouchPoints > 1);\r\n /** @private */\r\n this._numActivePoints = 0;\r\n /** @private */\r\n this._intervalTime = 0;\r\n /** @private */\r\n this._velocityCalculated = false;\r\n this.isMultitouch = false;\r\n this.isDragging = false;\r\n this.isZooming = false;\r\n /** @type {number | null} */\r\n this.raf = null;\r\n /** @type {NodeJS.Timeout | null}\r\n * @private\r\n */\r\n this._tapTimer = null;\r\n\r\n if (!this.supportsTouch) {\r\n // disable pan to next slide for non-touch devices\r\n pswp.options.allowPanToNext = false;\r\n }\r\n\r\n this.drag = new DragHandler(this);\r\n this.zoomLevels = new ZoomHandler(this);\r\n this.tapHandler = new TapHandler(this);\r\n\r\n pswp.on('bindEvents', () => {\r\n pswp.events.add(\r\n pswp.scrollWrap,\r\n 'click',\r\n /** @type EventListener */(this._onClick.bind(this))\r\n );\r\n\r\n if (this._pointerEventEnabled) {\r\n this._bindEvents('pointer', 'down', 'up', 'cancel');\r\n } else if (this._touchEventEnabled) {\r\n this._bindEvents('touch', 'start', 'end', 'cancel');\r\n\r\n // In previous versions we also bound mouse event here,\r\n // in case device supports both touch and mouse events,\r\n // but newer versions of browsers now support PointerEvent.\r\n\r\n // on iOS10 if you bind touchmove/end after touchstart,\r\n // and you don't preventDefault touchstart (which PhotoSwipe does),\r\n // preventDefault will have no effect on touchmove and touchend.\r\n // Unless you bind it previously.\r\n if (pswp.scrollWrap) {\r\n pswp.scrollWrap.ontouchmove = () => {};\r\n pswp.scrollWrap.ontouchend = () => {};\r\n }\r\n } else {\r\n this._bindEvents('mouse', 'down', 'up');\r\n }\r\n });\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {'mouse' | 'touch' | 'pointer'} pref\r\n * @param {'down' | 'start'} down\r\n * @param {'up' | 'end'} up\r\n * @param {'cancel'} [cancel]\r\n */\r\n _bindEvents(pref, down, up, cancel) {\r\n const { pswp } = this;\r\n const { events } = pswp;\r\n\r\n const cancelEvent = cancel ? pref + cancel : '';\r\n\r\n events.add(\r\n pswp.scrollWrap,\r\n pref + down,\r\n /** @type EventListener */(this.onPointerDown.bind(this))\r\n );\r\n events.add(window, pref + 'move', /** @type EventListener */(this.onPointerMove.bind(this)));\r\n events.add(window, pref + up, /** @type EventListener */(this.onPointerUp.bind(this)));\r\n if (cancelEvent) {\r\n events.add(\r\n pswp.scrollWrap,\r\n cancelEvent,\r\n /** @type EventListener */(this.onPointerUp.bind(this))\r\n );\r\n }\r\n }\r\n\r\n /**\r\n * @param {PointerEvent} e\r\n */\r\n onPointerDown(e) {\r\n // We do not call preventDefault for touch events\r\n // to allow browser to show native dialog on longpress\r\n // (the one that allows to save image or open it in new tab).\r\n //\r\n // Desktop Safari allows to drag images when preventDefault isn't called on mousedown,\r\n // even though preventDefault IS called on mousemove. That's why we preventDefault mousedown.\r\n const isMousePointer = e.type === 'mousedown' || e.pointerType === 'mouse';\r\n\r\n // Allow dragging only via left mouse button.\r\n // http://www.quirksmode.org/js/events_properties.html\r\n // https://developer.mozilla.org/en-US/docs/Web/API/event.button\r\n if (isMousePointer && e.button > 0) {\r\n return;\r\n }\r\n\r\n const { pswp } = this;\r\n\r\n // if PhotoSwipe is opening or closing\r\n if (!pswp.opener.isOpen) {\r\n e.preventDefault();\r\n return;\r\n }\r\n\r\n if (pswp.dispatch('pointerDown', { originalEvent: e }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (isMousePointer) {\r\n pswp.mouseDetected();\r\n\r\n // preventDefault mouse event to prevent\r\n // browser image drag feature\r\n this._preventPointerEventBehaviour(e, 'down');\r\n }\r\n\r\n pswp.animations.stopAll();\r\n\r\n this._updatePoints(e, 'down');\r\n\r\n if (this._numActivePoints === 1) {\r\n this.dragAxis = null;\r\n // we need to store initial point to determine the main axis,\r\n // drag is activated only after the axis is determined\r\n equalizePoints(this.startP1, this.p1);\r\n }\r\n\r\n if (this._numActivePoints > 1) {\r\n // Tap or double tap should not trigger if more than one pointer\r\n this._clearTapTimer();\r\n this.isMultitouch = true;\r\n } else {\r\n this.isMultitouch = false;\r\n }\r\n }\r\n\r\n /**\r\n * @param {PointerEvent} e\r\n */\r\n onPointerMove(e) {\r\n this._preventPointerEventBehaviour(e, 'move');\r\n\r\n if (!this._numActivePoints) {\r\n return;\r\n }\r\n\r\n this._updatePoints(e, 'move');\r\n\r\n if (this.pswp.dispatch('pointerMove', { originalEvent: e }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (this._numActivePoints === 1 && !this.isDragging) {\r\n if (!this.dragAxis) {\r\n this._calculateDragDirection();\r\n }\r\n\r\n // Drag axis was detected, emit drag.start\r\n if (this.dragAxis && !this.isDragging) {\r\n if (this.isZooming) {\r\n this.isZooming = false;\r\n this.zoomLevels.end();\r\n }\r\n\r\n this.isDragging = true;\r\n this._clearTapTimer(); // Tap can not trigger after drag\r\n\r\n // Adjust starting point\r\n this._updateStartPoints();\r\n this._intervalTime = Date.now();\r\n //this._startTime = this._intervalTime;\r\n this._velocityCalculated = false;\r\n equalizePoints(this._intervalP1, this.p1);\r\n this.velocity.x = 0;\r\n this.velocity.y = 0;\r\n this.drag.start();\r\n\r\n this._rafStopLoop();\r\n this._rafRenderLoop();\r\n }\r\n } else if (this._numActivePoints > 1 && !this.isZooming) {\r\n this._finishDrag();\r\n\r\n this.isZooming = true;\r\n\r\n // Adjust starting points\r\n this._updateStartPoints();\r\n\r\n this.zoomLevels.start();\r\n\r\n this._rafStopLoop();\r\n this._rafRenderLoop();\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n */\r\n _finishDrag() {\r\n if (this.isDragging) {\r\n this.isDragging = false;\r\n\r\n // Try to calculate velocity,\r\n // if it wasn't calculated yet in drag.change\r\n if (!this._velocityCalculated) {\r\n this._updateVelocity(true);\r\n }\r\n\r\n this.drag.end();\r\n this.dragAxis = null;\r\n }\r\n }\r\n\r\n /**\r\n * @param {PointerEvent} e\r\n */\r\n onPointerUp(e) {\r\n if (!this._numActivePoints) {\r\n return;\r\n }\r\n\r\n this._updatePoints(e, 'up');\r\n\r\n if (this.pswp.dispatch('pointerUp', { originalEvent: e }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (this._numActivePoints === 0) {\r\n this._rafStopLoop();\r\n\r\n if (this.isDragging) {\r\n this._finishDrag();\r\n } else if (!this.isZooming && !this.isMultitouch) {\r\n //this.zoomLevels.correctZoomPan();\r\n this._finishTap(e);\r\n }\r\n }\r\n\r\n if (this._numActivePoints < 2 && this.isZooming) {\r\n this.isZooming = false;\r\n this.zoomLevels.end();\r\n\r\n if (this._numActivePoints === 1) {\r\n // Since we have 1 point left, we need to reinitiate drag\r\n this.dragAxis = null;\r\n this._updateStartPoints();\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n */\r\n _rafRenderLoop() {\r\n if (this.isDragging || this.isZooming) {\r\n this._updateVelocity();\r\n\r\n if (this.isDragging) {\r\n // make sure that pointer moved since the last update\r\n if (!pointsEqual(this.p1, this.prevP1)) {\r\n this.drag.change();\r\n }\r\n } else /* if (this.isZooming) */ {\r\n if (!pointsEqual(this.p1, this.prevP1)\r\n || !pointsEqual(this.p2, this.prevP2)) {\r\n this.zoomLevels.change();\r\n }\r\n }\r\n\r\n this._updatePrevPoints();\r\n this.raf = requestAnimationFrame(this._rafRenderLoop.bind(this));\r\n }\r\n }\r\n\r\n /**\r\n * Update velocity at 50ms interval\r\n *\r\n * @private\r\n * @param {boolean} [force]\r\n */\r\n _updateVelocity(force) {\r\n const time = Date.now();\r\n const duration = time - this._intervalTime;\r\n\r\n if (duration < 50 && !force) {\r\n return;\r\n }\r\n\r\n\r\n this.velocity.x = this._getVelocity('x', duration);\r\n this.velocity.y = this._getVelocity('y', duration);\r\n\r\n this._intervalTime = time;\r\n equalizePoints(this._intervalP1, this.p1);\r\n this._velocityCalculated = true;\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {PointerEvent} e\r\n */\r\n _finishTap(e) {\r\n const { mainScroll } = this.pswp;\r\n\r\n // Do not trigger tap events if main scroll is shifted\r\n if (mainScroll.isShifted()) {\r\n // restore main scroll position\r\n // (usually happens if stopped in the middle of animation)\r\n mainScroll.moveIndexBy(0, true);\r\n return;\r\n }\r\n\r\n // Do not trigger tap for touchcancel or pointercancel\r\n if (e.type.indexOf('cancel') > 0) {\r\n return;\r\n }\r\n\r\n // Trigger click instead of tap for mouse events\r\n if (e.type === 'mouseup' || e.pointerType === 'mouse') {\r\n this.tapHandler.click(this.startP1, e);\r\n return;\r\n }\r\n\r\n // Disable delay if there is no doubleTapAction\r\n const tapDelay = this.pswp.options.doubleTapAction ? DOUBLE_TAP_DELAY : 0;\r\n\r\n // If tapTimer is defined - we tapped recently,\r\n // check if the current tap is close to the previous one,\r\n // if yes - trigger double tap\r\n if (this._tapTimer) {\r\n this._clearTapTimer();\r\n // Check if two taps were more or less on the same place\r\n if (getDistanceBetween(this._lastStartP1, this.startP1) < MIN_TAP_DISTANCE) {\r\n this.tapHandler.doubleTap(this.startP1, e);\r\n }\r\n } else {\r\n equalizePoints(this._lastStartP1, this.startP1);\r\n this._tapTimer = setTimeout(() => {\r\n this.tapHandler.tap(this.startP1, e);\r\n this._clearTapTimer();\r\n }, tapDelay);\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n */\r\n _clearTapTimer() {\r\n if (this._tapTimer) {\r\n clearTimeout(this._tapTimer);\r\n this._tapTimer = null;\r\n }\r\n }\r\n\r\n /**\r\n * Get velocity for axis\r\n *\r\n * @private\r\n * @param {'x' | 'y'} axis\r\n * @param {number} duration\r\n * @returns {number}\r\n */\r\n _getVelocity(axis, duration) {\r\n // displacement is like distance, but can be negative.\r\n const displacement = this.p1[axis] - this._intervalP1[axis];\r\n\r\n if (Math.abs(displacement) > 1 && duration > 5) {\r\n return displacement / duration;\r\n }\r\n\r\n return 0;\r\n }\r\n\r\n /**\r\n * @private\r\n */\r\n _rafStopLoop() {\r\n if (this.raf) {\r\n cancelAnimationFrame(this.raf);\r\n this.raf = null;\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {PointerEvent} e\r\n * @param {'up' | 'down' | 'move'} pointerType Normalized pointer type\r\n */\r\n _preventPointerEventBehaviour(e, pointerType) {\r\n const preventPointerEvent = this.pswp.applyFilters('preventPointerEvent', true, e, pointerType);\r\n if (preventPointerEvent) {\r\n e.preventDefault();\r\n }\r\n }\r\n\r\n /**\r\n * Parses and normalizes points from the touch, mouse or pointer event.\r\n * Updates p1 and p2.\r\n *\r\n * @private\r\n * @param {PointerEvent | TouchEvent} e\r\n * @param {'up' | 'down' | 'move'} pointerType Normalized pointer type\r\n */\r\n _updatePoints(e, pointerType) {\r\n if (this._pointerEventEnabled) {\r\n const pointerEvent = /** @type {PointerEvent} */ (e);\r\n // Try to find the current pointer in ongoing pointers by its ID\r\n const pointerIndex = this._ongoingPointers.findIndex((ongoingPointer) => {\r\n return ongoingPointer.id === pointerEvent.pointerId;\r\n });\r\n\r\n if (pointerType === 'up' && pointerIndex > -1) {\r\n // release the pointer - remove it from ongoing\r\n this._ongoingPointers.splice(pointerIndex, 1);\r\n } else if (pointerType === 'down' && pointerIndex === -1) {\r\n // add new pointer\r\n this._ongoingPointers.push(this._convertEventPosToPoint(pointerEvent, { x: 0, y: 0 }));\r\n } else if (pointerIndex > -1) {\r\n // update existing pointer\r\n this._convertEventPosToPoint(pointerEvent, this._ongoingPointers[pointerIndex]);\r\n }\r\n\r\n this._numActivePoints = this._ongoingPointers.length;\r\n\r\n // update points that PhotoSwipe uses\r\n // to calculate position and scale\r\n if (this._numActivePoints > 0) {\r\n equalizePoints(this.p1, this._ongoingPointers[0]);\r\n }\r\n\r\n if (this._numActivePoints > 1) {\r\n equalizePoints(this.p2, this._ongoingPointers[1]);\r\n }\r\n } else {\r\n const touchEvent = /** @type {TouchEvent} */ (e);\r\n\r\n this._numActivePoints = 0;\r\n if (touchEvent.type.indexOf('touch') > -1) {\r\n // Touch Event\r\n // https://developer.mozilla.org/en-US/docs/Web/API/TouchEvent\r\n if (touchEvent.touches && touchEvent.touches.length > 0) {\r\n this._convertEventPosToPoint(touchEvent.touches[0], this.p1);\r\n this._numActivePoints++;\r\n if (touchEvent.touches.length > 1) {\r\n this._convertEventPosToPoint(touchEvent.touches[1], this.p2);\r\n this._numActivePoints++;\r\n }\r\n }\r\n } else {\r\n // Mouse Event\r\n this._convertEventPosToPoint(/** @type {PointerEvent} */ (e), this.p1);\r\n if (pointerType === 'up') {\r\n // clear all points on mouseup\r\n this._numActivePoints = 0;\r\n } else {\r\n this._numActivePoints++;\r\n }\r\n }\r\n }\r\n }\r\n\r\n /** update points that were used during previous rAF tick\r\n * @private\r\n */\r\n _updatePrevPoints() {\r\n equalizePoints(this.prevP1, this.p1);\r\n equalizePoints(this.prevP2, this.p2);\r\n }\r\n\r\n /** update points at the start of gesture\r\n * @private\r\n */\r\n _updateStartPoints() {\r\n equalizePoints(this.startP1, this.p1);\r\n equalizePoints(this.startP2, this.p2);\r\n this._updatePrevPoints();\r\n }\r\n\r\n /** @private */\r\n _calculateDragDirection() {\r\n if (this.pswp.mainScroll.isShifted()) {\r\n // if main scroll position is shifted – direction is always horizontal\r\n this.dragAxis = 'x';\r\n } else {\r\n // calculate delta of the last touchmove tick\r\n const diff = Math.abs(this.p1.x - this.startP1.x) - Math.abs(this.p1.y - this.startP1.y);\r\n\r\n if (diff !== 0) {\r\n // check if pointer was shifted horizontally or vertically\r\n const axisToCheck = diff > 0 ? 'x' : 'y';\r\n\r\n if (Math.abs(this.p1[axisToCheck] - this.startP1[axisToCheck]) >= AXIS_SWIPE_HYSTERISIS) {\r\n this.dragAxis = axisToCheck;\r\n }\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * Converts touch, pointer or mouse event\r\n * to PhotoSwipe point.\r\n *\r\n * @private\r\n * @param {Touch | PointerEvent} e\r\n * @param {Point} p\r\n * @returns {Point}\r\n */\r\n _convertEventPosToPoint(e, p) {\r\n p.x = e.pageX - this.pswp.offset.x;\r\n p.y = e.pageY - this.pswp.offset.y;\r\n\r\n if ('pointerId' in e) {\r\n p.id = e.pointerId;\r\n } else if (e.identifier !== undefined) {\r\n p.id = e.identifier;\r\n }\r\n\r\n return p;\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {PointerEvent} e\r\n */\r\n _onClick(e) {\r\n // Do not allow click event to pass through after drag\r\n if (this.pswp.mainScroll.isShifted()) {\r\n e.preventDefault();\r\n e.stopPropagation();\r\n }\r\n }\r\n}\r\n\r\nexport default Gestures;\r\n","import {\r\n setTransform,\r\n createElement,\r\n} from './util/util.js';\r\n\r\n/** @typedef {import('./photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('./slide/slide.js').default} Slide */\r\n\r\n/** @typedef {{ el: HTMLDivElement; slide?: Slide }} ItemHolder */\r\n\r\nconst MAIN_SCROLL_END_FRICTION = 0.35;\r\n\r\n\r\n// const MIN_SWIPE_TRANSITION_DURATION = 250;\r\n// const MAX_SWIPE_TRABSITION_DURATION = 500;\r\n// const DEFAULT_SWIPE_TRANSITION_DURATION = 333;\r\n\r\n/**\r\n * Handles movement of the main scrolling container\r\n * (for example, it repositions when user swipes left or right).\r\n *\r\n * Also stores its state.\r\n */\r\nclass MainScroll {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n this.x = 0;\r\n this.slideWidth = 0;\r\n /** @private */\r\n this._currPositionIndex = 0;\r\n /** @private */\r\n this._prevPositionIndex = 0;\r\n /** @private */\r\n this._containerShiftIndex = -1;\r\n\r\n /** @type {ItemHolder[]} */\r\n this.itemHolders = [];\r\n }\r\n\r\n /**\r\n * Position the scroller and slide containers\r\n * according to viewport size.\r\n *\r\n * @param {boolean} [resizeSlides] Whether slides content should resized\r\n */\r\n resize(resizeSlides) {\r\n const { pswp } = this;\r\n const newSlideWidth = Math.round(\r\n pswp.viewportSize.x + pswp.viewportSize.x * pswp.options.spacing\r\n );\r\n // Mobile browsers might trigger a resize event during a gesture.\r\n // (due to toolbar appearing or hiding).\r\n // Avoid re-adjusting main scroll position if width wasn't changed\r\n const slideWidthChanged = (newSlideWidth !== this.slideWidth);\r\n\r\n if (slideWidthChanged) {\r\n this.slideWidth = newSlideWidth;\r\n this.moveTo(this.getCurrSlideX());\r\n }\r\n\r\n this.itemHolders.forEach((itemHolder, index) => {\r\n if (slideWidthChanged) {\r\n setTransform(itemHolder.el, (index + this._containerShiftIndex)\r\n * this.slideWidth);\r\n }\r\n\r\n if (resizeSlides && itemHolder.slide) {\r\n itemHolder.slide.resize();\r\n }\r\n });\r\n }\r\n\r\n /**\r\n * Reset X position of the main scroller to zero\r\n */\r\n resetPosition() {\r\n // Position on the main scroller (offset)\r\n // it is independent from slide index\r\n this._currPositionIndex = 0;\r\n this._prevPositionIndex = 0;\r\n\r\n // This will force recalculation of size on next resize()\r\n this.slideWidth = 0;\r\n\r\n // _containerShiftIndex*viewportSize will give you amount of transform of the current slide\r\n this._containerShiftIndex = -1;\r\n }\r\n\r\n /**\r\n * Create and append array of three items\r\n * that hold data about slides in DOM\r\n */\r\n appendHolders() {\r\n this.itemHolders = [];\r\n\r\n // append our three slide holders -\r\n // previous, current, and next\r\n for (let i = 0; i < 3; i++) {\r\n const el = createElement('pswp__item', 'div', this.pswp.container);\r\n el.setAttribute('role', 'group');\r\n el.setAttribute('aria-roledescription', 'slide');\r\n el.setAttribute('aria-hidden', 'true');\r\n\r\n // hide nearby item holders until initial zoom animation finishes (to avoid extra Paints)\r\n el.style.display = (i === 1) ? 'block' : 'none';\r\n\r\n this.itemHolders.push({\r\n el,\r\n //index: -1\r\n });\r\n }\r\n }\r\n\r\n /**\r\n * Whether the main scroll can be horizontally swiped to the next or previous slide.\r\n * @returns {boolean}\r\n */\r\n canBeSwiped() {\r\n return this.pswp.getNumItems() > 1;\r\n }\r\n\r\n /**\r\n * Move main scroll by X amount of slides.\r\n * For example:\r\n * `-1` will move to the previous slide,\r\n * `0` will reset the scroll position of the current slide,\r\n * `3` will move three slides forward\r\n *\r\n * If loop option is enabled - index will be automatically looped too,\r\n * (for example `-1` will move to the last slide of the gallery).\r\n *\r\n * @param {number} diff\r\n * @param {boolean} [animate]\r\n * @param {number} [velocityX]\r\n * @returns {boolean} whether index was changed or not\r\n */\r\n moveIndexBy(diff, animate, velocityX) {\r\n const { pswp } = this;\r\n let newIndex = pswp.potentialIndex + diff;\r\n const numSlides = pswp.getNumItems();\r\n\r\n if (pswp.canLoop()) {\r\n newIndex = pswp.getLoopedIndex(newIndex);\r\n const distance = (diff + numSlides) % numSlides;\r\n if (distance <= numSlides / 2) {\r\n // go forward\r\n diff = distance;\r\n } else {\r\n // go backwards\r\n diff = distance - numSlides;\r\n }\r\n } else {\r\n if (newIndex < 0) {\r\n newIndex = 0;\r\n } else if (newIndex >= numSlides) {\r\n newIndex = numSlides - 1;\r\n }\r\n diff = newIndex - pswp.potentialIndex;\r\n }\r\n\r\n pswp.potentialIndex = newIndex;\r\n this._currPositionIndex -= diff;\r\n\r\n pswp.animations.stopMainScroll();\r\n\r\n const destinationX = this.getCurrSlideX();\r\n if (!animate) {\r\n this.moveTo(destinationX);\r\n this.updateCurrItem();\r\n } else {\r\n pswp.animations.startSpring({\r\n isMainScroll: true,\r\n start: this.x,\r\n end: destinationX,\r\n velocity: velocityX || 0,\r\n naturalFrequency: 30,\r\n dampingRatio: 1, //0.7,\r\n onUpdate: (x) => {\r\n this.moveTo(x);\r\n },\r\n onComplete: () => {\r\n this.updateCurrItem();\r\n pswp.appendHeavy();\r\n }\r\n });\r\n\r\n let currDiff = pswp.potentialIndex - pswp.currIndex;\r\n if (pswp.canLoop()) {\r\n const currDistance = (currDiff + numSlides) % numSlides;\r\n if (currDistance <= numSlides / 2) {\r\n // go forward\r\n currDiff = currDistance;\r\n } else {\r\n // go backwards\r\n currDiff = currDistance - numSlides;\r\n }\r\n }\r\n\r\n // Force-append new slides during transition\r\n // if difference between slides is more than 1\r\n if (Math.abs(currDiff) > 1) {\r\n this.updateCurrItem();\r\n }\r\n }\r\n\r\n return Boolean(diff);\r\n }\r\n\r\n /**\r\n * X position of the main scroll for the current slide\r\n * (ignores position during dragging)\r\n * @returns {number}\r\n */\r\n getCurrSlideX() {\r\n return this.slideWidth * this._currPositionIndex;\r\n }\r\n\r\n /**\r\n * Whether scroll position is shifted.\r\n * For example, it will return true if the scroll is being dragged or animated.\r\n * @returns {boolean}\r\n */\r\n isShifted() {\r\n return this.x !== this.getCurrSlideX();\r\n }\r\n\r\n /**\r\n * Update slides X positions and set their content\r\n */\r\n updateCurrItem() {\r\n const { pswp } = this;\r\n const positionDifference = this._prevPositionIndex - this._currPositionIndex;\r\n\r\n if (!positionDifference) {\r\n return;\r\n }\r\n\r\n this._prevPositionIndex = this._currPositionIndex;\r\n\r\n pswp.currIndex = pswp.potentialIndex;\r\n\r\n let diffAbs = Math.abs(positionDifference);\r\n /** @type {ItemHolder | undefined} */\r\n let tempHolder;\r\n\r\n if (diffAbs >= 3) {\r\n this._containerShiftIndex += positionDifference + (positionDifference > 0 ? -3 : 3);\r\n diffAbs = 3;\r\n\r\n // If slides are changed by 3 screens or more - clean up previous slides\r\n this.itemHolders.forEach((itemHolder) => {\r\n itemHolder.slide?.destroy();\r\n itemHolder.slide = undefined;\r\n });\r\n }\r\n\r\n for (let i = 0; i < diffAbs; i++) {\r\n if (positionDifference > 0) {\r\n tempHolder = this.itemHolders.shift();\r\n if (tempHolder) {\r\n this.itemHolders[2] = tempHolder; // move first to last\r\n\r\n this._containerShiftIndex++;\r\n\r\n setTransform(tempHolder.el, (this._containerShiftIndex + 2) * this.slideWidth);\r\n\r\n pswp.setContent(tempHolder, (pswp.currIndex - diffAbs) + i + 2);\r\n }\r\n } else {\r\n tempHolder = this.itemHolders.pop();\r\n if (tempHolder) {\r\n this.itemHolders.unshift(tempHolder); // move last to first\r\n\r\n this._containerShiftIndex--;\r\n\r\n setTransform(tempHolder.el, this._containerShiftIndex * this.slideWidth);\r\n\r\n pswp.setContent(tempHolder, (pswp.currIndex + diffAbs) - i - 2);\r\n }\r\n }\r\n }\r\n\r\n // Reset transfrom every 50ish navigations in one direction.\r\n //\r\n // Otherwise transform will keep growing indefinitely,\r\n // which might cause issues as browsers have a maximum transform limit.\r\n // I wasn't able to reach it, but just to be safe.\r\n // This should not cause noticable lag.\r\n if (Math.abs(this._containerShiftIndex) > 50 && !this.isShifted()) {\r\n this.resetPosition();\r\n this.resize();\r\n }\r\n\r\n // Pan transition might be running (and consntantly updating pan position)\r\n pswp.animations.stopAllPan();\r\n\r\n this.itemHolders.forEach((itemHolder, i) => {\r\n if (itemHolder.slide) {\r\n // Slide in the 2nd holder is always active\r\n itemHolder.slide.setIsActive(i === 1);\r\n }\r\n });\r\n\r\n pswp.currSlide = this.itemHolders[1]?.slide;\r\n pswp.contentLoader.updateLazy(positionDifference);\r\n\r\n if (pswp.currSlide) {\r\n pswp.currSlide.applyCurrentZoomPan();\r\n }\r\n\r\n pswp.dispatch('change');\r\n }\r\n\r\n /**\r\n * Move the X position of the main scroll container\r\n *\r\n * @param {number} x\r\n * @param {boolean} [dragging]\r\n */\r\n moveTo(x, dragging) {\r\n if (!this.pswp.canLoop() && dragging) {\r\n // Apply friction\r\n let newSlideIndexOffset = ((this.slideWidth * this._currPositionIndex) - x) / this.slideWidth;\r\n newSlideIndexOffset += this.pswp.currIndex;\r\n const delta = Math.round(x - this.x);\r\n\r\n if ((newSlideIndexOffset < 0 && delta > 0)\r\n || (newSlideIndexOffset >= this.pswp.getNumItems() - 1 && delta < 0)) {\r\n x = this.x + (delta * MAIN_SCROLL_END_FRICTION);\r\n }\r\n }\r\n\r\n this.x = x;\r\n\r\n if (this.pswp.container) {\r\n setTransform(this.pswp.container, x);\r\n }\r\n\r\n this.pswp.dispatch('moveMainScroll', { x, dragging: dragging ?? false });\r\n }\r\n}\r\n\r\nexport default MainScroll;\r\n","import { specialKeyUsed } from './util/util.js';\r\n\r\n/** @typedef {import('./photoswipe.js').default} PhotoSwipe */\r\n\r\n/**\r\n * @template T\r\n * @typedef {import('./types.js').Methods} Methods\r\n */\r\n\r\nconst KeyboardKeyCodesMap = {\r\n Escape: 27,\r\n z: 90,\r\n ArrowLeft: 37,\r\n ArrowUp: 38,\r\n ArrowRight: 39,\r\n ArrowDown: 40,\r\n Tab: 9,\r\n};\r\n\r\n/**\r\n * @template {keyof KeyboardKeyCodesMap} T\r\n * @param {T} key\r\n * @param {boolean} isKeySupported\r\n * @returns {T | number | undefined}\r\n */\r\nconst getKeyboardEventKey = (key, isKeySupported) => {\r\n return isKeySupported ? key : KeyboardKeyCodesMap[key];\r\n};\r\n\r\n/**\r\n * - Manages keyboard shortcuts.\r\n * - Helps trap focus within photoswipe.\r\n */\r\nclass Keyboard {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n /** @private */\r\n this._wasFocused = false;\r\n\r\n pswp.on('bindEvents', () => {\r\n if (pswp.options.trapFocus) {\r\n // Dialog was likely opened by keyboard if initial point is not defined\r\n if (!pswp.options.initialPointerPos) {\r\n // focus causes layout,\r\n // which causes lag during the animation,\r\n // that's why we delay it until the opener transition ends\r\n this._focusRoot();\r\n }\r\n\r\n pswp.events.add(\r\n document,\r\n 'focusin',\r\n /** @type EventListener */(this._onFocusIn.bind(this))\r\n );\r\n }\r\n\r\n pswp.events.add(document, 'keydown', /** @type EventListener */(this._onKeyDown.bind(this)));\r\n });\r\n\r\n const lastActiveElement = /** @type {HTMLElement} */ (document.activeElement);\r\n pswp.on('destroy', () => {\r\n if (pswp.options.returnFocus\r\n && lastActiveElement\r\n && this._wasFocused) {\r\n lastActiveElement.focus();\r\n }\r\n });\r\n }\r\n\r\n /** @private */\r\n _focusRoot() {\r\n if (!this._wasFocused && this.pswp.element) {\r\n this.pswp.element.focus();\r\n this._wasFocused = true;\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {KeyboardEvent} e\r\n */\r\n _onKeyDown(e) {\r\n const { pswp } = this;\r\n\r\n if (pswp.dispatch('keydown', { originalEvent: e }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (specialKeyUsed(e)) {\r\n // don't do anything if special key pressed\r\n // to prevent from overriding default browser actions\r\n // for example, in Chrome on Mac cmd+arrow-left returns to previous page\r\n return;\r\n }\r\n\r\n /** @type {Methods | undefined} */\r\n let keydownAction;\r\n /** @type {'x' | 'y' | undefined} */\r\n let axis;\r\n let isForward = false;\r\n const isKeySupported = 'key' in e;\r\n\r\n switch (isKeySupported ? e.key : e.keyCode) {\r\n case getKeyboardEventKey('Escape', isKeySupported):\r\n if (pswp.options.escKey) {\r\n keydownAction = 'close';\r\n }\r\n break;\r\n case getKeyboardEventKey('z', isKeySupported):\r\n keydownAction = 'toggleZoom';\r\n break;\r\n case getKeyboardEventKey('ArrowLeft', isKeySupported):\r\n axis = 'x';\r\n break;\r\n case getKeyboardEventKey('ArrowUp', isKeySupported):\r\n axis = 'y';\r\n break;\r\n case getKeyboardEventKey('ArrowRight', isKeySupported):\r\n axis = 'x';\r\n isForward = true;\r\n break;\r\n case getKeyboardEventKey('ArrowDown', isKeySupported):\r\n isForward = true;\r\n axis = 'y';\r\n break;\r\n case getKeyboardEventKey('Tab', isKeySupported):\r\n this._focusRoot();\r\n break;\r\n default:\r\n }\r\n\r\n // if left/right/top/bottom key\r\n if (axis) {\r\n // prevent page scroll\r\n e.preventDefault();\r\n\r\n const { currSlide } = pswp;\r\n\r\n if (pswp.options.arrowKeys\r\n && axis === 'x'\r\n && pswp.getNumItems() > 1) {\r\n keydownAction = isForward ? 'next' : 'prev';\r\n } else if (currSlide && currSlide.currZoomLevel > currSlide.zoomLevels.fit) {\r\n // up/down arrow keys pan the image vertically\r\n // left/right arrow keys pan horizontally.\r\n // Unless there is only one image,\r\n // or arrowKeys option is disabled\r\n currSlide.pan[axis] += isForward ? -80 : 80;\r\n currSlide.panTo(currSlide.pan.x, currSlide.pan.y);\r\n }\r\n }\r\n\r\n if (keydownAction) {\r\n e.preventDefault();\r\n // @ts-ignore\r\n pswp[keydownAction]();\r\n }\r\n }\r\n\r\n /**\r\n * Trap focus inside photoswipe\r\n *\r\n * @private\r\n * @param {FocusEvent} e\r\n */\r\n _onFocusIn(e) {\r\n const { template } = this.pswp;\r\n if (template\r\n && document !== e.target\r\n && template !== e.target\r\n && !template.contains(/** @type {Node} */ (e.target))) {\r\n // focus root element\r\n template.focus();\r\n }\r\n }\r\n}\r\n\r\nexport default Keyboard;\r\n","import { setTransitionStyle, removeTransitionStyle } from './util.js';\r\n\r\nconst DEFAULT_EASING = 'cubic-bezier(.4,0,.22,1)';\r\n\r\n/** @typedef {import('./animations.js').SharedAnimationProps} SharedAnimationProps */\r\n\r\n/** @typedef {Object} DefaultCssAnimationProps\r\n *\r\n * @prop {HTMLElement} target\r\n * @prop {number} [duration]\r\n * @prop {string} [easing]\r\n * @prop {string} [transform]\r\n * @prop {string} [opacity]\r\n * */\r\n\r\n/** @typedef {SharedAnimationProps & DefaultCssAnimationProps} CssAnimationProps */\r\n\r\n/**\r\n * Runs CSS transition.\r\n */\r\nclass CSSAnimation {\r\n /**\r\n * onComplete can be unpredictable, be careful about current state\r\n *\r\n * @param {CssAnimationProps} props\r\n */\r\n constructor(props) {\r\n this.props = props;\r\n const {\r\n target,\r\n onComplete,\r\n transform,\r\n onFinish = () => {},\r\n duration = 333,\r\n easing = DEFAULT_EASING,\r\n } = props;\r\n\r\n this.onFinish = onFinish;\r\n\r\n // support only transform and opacity\r\n const prop = transform ? 'transform' : 'opacity';\r\n const propValue = props[prop] ?? '';\r\n\r\n /** @private */\r\n this._target = target;\r\n /** @private */\r\n this._onComplete = onComplete;\r\n /** @private */\r\n this._finished = false;\r\n\r\n /** @private */\r\n this._onTransitionEnd = this._onTransitionEnd.bind(this);\r\n\r\n // Using timeout hack to make sure that animation\r\n // starts even if the animated property was changed recently,\r\n // otherwise transitionend might not fire or transition won't start.\r\n // https://drafts.csswg.org/css-transitions/#starting\r\n //\r\n // ¯\\_(ツ)_/¯\r\n /** @private */\r\n this._helperTimeout = setTimeout(() => {\r\n setTransitionStyle(target, prop, duration, easing);\r\n this._helperTimeout = setTimeout(() => {\r\n target.addEventListener('transitionend', this._onTransitionEnd, false);\r\n target.addEventListener('transitioncancel', this._onTransitionEnd, false);\r\n\r\n // Safari occasionally does not emit transitionend event\r\n // if element property was modified during the transition,\r\n // which may be caused by resize or third party component,\r\n // using timeout as a safety fallback\r\n this._helperTimeout = setTimeout(() => {\r\n this._finalizeAnimation();\r\n }, duration + 500);\r\n target.style[prop] = propValue;\r\n }, 30); // Do not reduce this number\r\n }, 0);\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {TransitionEvent} e\r\n */\r\n _onTransitionEnd(e) {\r\n if (e.target === this._target) {\r\n this._finalizeAnimation();\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n */\r\n _finalizeAnimation() {\r\n if (!this._finished) {\r\n this._finished = true;\r\n this.onFinish();\r\n if (this._onComplete) {\r\n this._onComplete();\r\n }\r\n }\r\n }\r\n\r\n // Destroy is called automatically onFinish\r\n destroy() {\r\n if (this._helperTimeout) {\r\n clearTimeout(this._helperTimeout);\r\n }\r\n removeTransitionStyle(this._target);\r\n this._target.removeEventListener('transitionend', this._onTransitionEnd, false);\r\n this._target.removeEventListener('transitioncancel', this._onTransitionEnd, false);\r\n if (!this._finished) {\r\n this._finalizeAnimation();\r\n }\r\n }\r\n}\r\n\r\nexport default CSSAnimation;\r\n","const DEFAULT_NATURAL_FREQUENCY = 12;\r\nconst DEFAULT_DAMPING_RATIO = 0.75;\r\n\r\n/**\r\n * Spring easing helper\r\n */\r\nclass SpringEaser {\r\n /**\r\n * @param {number} initialVelocity Initial velocity, px per ms.\r\n *\r\n * @param {number} [dampingRatio]\r\n * Determines how bouncy animation will be.\r\n * From 0 to 1, 0 - always overshoot, 1 - do not overshoot.\r\n * \"overshoot\" refers to part of animation that\r\n * goes beyond the final value.\r\n *\r\n * @param {number} [naturalFrequency]\r\n * Determines how fast animation will slow down.\r\n * The higher value - the stiffer the transition will be,\r\n * and the faster it will slow down.\r\n * Recommended value from 10 to 50\r\n */\r\n constructor(initialVelocity, dampingRatio, naturalFrequency) {\r\n this.velocity = initialVelocity * 1000; // convert to \"pixels per second\"\r\n\r\n // https://en.wikipedia.org/wiki/Damping_ratio\r\n this._dampingRatio = dampingRatio || DEFAULT_DAMPING_RATIO;\r\n\r\n // https://en.wikipedia.org/wiki/Natural_frequency\r\n this._naturalFrequency = naturalFrequency || DEFAULT_NATURAL_FREQUENCY;\r\n\r\n this._dampedFrequency = this._naturalFrequency;\r\n\r\n if (this._dampingRatio < 1) {\r\n this._dampedFrequency *= Math.sqrt(1 - this._dampingRatio * this._dampingRatio);\r\n }\r\n }\r\n\r\n /**\r\n * @param {number} deltaPosition Difference between current and end position of the animation\r\n * @param {number} deltaTime Frame duration in milliseconds\r\n *\r\n * @returns {number} Displacement, relative to the end position.\r\n */\r\n easeFrame(deltaPosition, deltaTime) {\r\n // Inspired by Apple Webkit and Android spring function implementation\r\n // https://en.wikipedia.org/wiki/Oscillation\r\n // https://en.wikipedia.org/wiki/Damping_ratio\r\n // we ignore mass (assume that it's 1kg)\r\n\r\n let displacement = 0;\r\n let coeff;\r\n\r\n deltaTime /= 1000;\r\n\r\n const naturalDumpingPow = Math.E ** (-this._dampingRatio * this._naturalFrequency * deltaTime);\r\n\r\n if (this._dampingRatio === 1) {\r\n coeff = this.velocity + this._naturalFrequency * deltaPosition;\r\n\r\n displacement = (deltaPosition + coeff * deltaTime) * naturalDumpingPow;\r\n\r\n this.velocity = displacement\r\n * (-this._naturalFrequency) + coeff\r\n * naturalDumpingPow;\r\n } else if (this._dampingRatio < 1) {\r\n coeff = (1 / this._dampedFrequency)\r\n * (this._dampingRatio * this._naturalFrequency * deltaPosition + this.velocity);\r\n\r\n const dumpedFCos = Math.cos(this._dampedFrequency * deltaTime);\r\n const dumpedFSin = Math.sin(this._dampedFrequency * deltaTime);\r\n\r\n displacement = naturalDumpingPow\r\n * (deltaPosition * dumpedFCos + coeff * dumpedFSin);\r\n\r\n this.velocity = displacement\r\n * (-this._naturalFrequency)\r\n * this._dampingRatio\r\n + naturalDumpingPow\r\n * (-this._dampedFrequency * deltaPosition * dumpedFSin\r\n + this._dampedFrequency * coeff * dumpedFCos);\r\n }\r\n\r\n // Overdamped (>1) damping ratio is not supported\r\n\r\n return displacement;\r\n }\r\n}\r\n\r\nexport default SpringEaser;\r\n","import SpringEaser from './spring-easer.js';\r\n\r\n/** @typedef {import('./animations.js').SharedAnimationProps} SharedAnimationProps */\r\n\r\n/**\r\n * @typedef {Object} DefaultSpringAnimationProps\r\n *\r\n * @prop {number} start\r\n * @prop {number} end\r\n * @prop {number} velocity\r\n * @prop {number} [dampingRatio]\r\n * @prop {number} [naturalFrequency]\r\n * @prop {(end: number) => void} onUpdate\r\n */\r\n\r\n/** @typedef {SharedAnimationProps & DefaultSpringAnimationProps} SpringAnimationProps */\r\n\r\nclass SpringAnimation {\r\n /**\r\n * @param {SpringAnimationProps} props\r\n */\r\n constructor(props) {\r\n this.props = props;\r\n this._raf = 0;\r\n\r\n const {\r\n start,\r\n end,\r\n velocity,\r\n onUpdate,\r\n onComplete,\r\n onFinish = () => {},\r\n dampingRatio,\r\n naturalFrequency\r\n } = props;\r\n\r\n this.onFinish = onFinish;\r\n\r\n const easer = new SpringEaser(velocity, dampingRatio, naturalFrequency);\r\n let prevTime = Date.now();\r\n let deltaPosition = start - end;\r\n\r\n const animationLoop = () => {\r\n if (this._raf) {\r\n deltaPosition = easer.easeFrame(deltaPosition, Date.now() - prevTime);\r\n\r\n // Stop the animation if velocity is low and position is close to end\r\n if (Math.abs(deltaPosition) < 1 && Math.abs(easer.velocity) < 50) {\r\n // Finalize the animation\r\n onUpdate(end);\r\n if (onComplete) {\r\n onComplete();\r\n }\r\n this.onFinish();\r\n } else {\r\n prevTime = Date.now();\r\n onUpdate(deltaPosition + end);\r\n this._raf = requestAnimationFrame(animationLoop);\r\n }\r\n }\r\n };\r\n\r\n this._raf = requestAnimationFrame(animationLoop);\r\n }\r\n\r\n // Destroy is called automatically onFinish\r\n destroy() {\r\n if (this._raf >= 0) {\r\n cancelAnimationFrame(this._raf);\r\n }\r\n this._raf = 0;\r\n }\r\n}\r\n\r\nexport default SpringAnimation;\r\n","import CSSAnimation from './css-animation.js';\r\nimport SpringAnimation from './spring-animation.js';\r\n\r\n/** @typedef {import('./css-animation.js').CssAnimationProps} CssAnimationProps */\r\n/** @typedef {import('./spring-animation.js').SpringAnimationProps} SpringAnimationProps */\r\n\r\n/** @typedef {Object} SharedAnimationProps\r\n * @prop {string} [name]\r\n * @prop {boolean} [isPan]\r\n * @prop {boolean} [isMainScroll]\r\n * @prop {VoidFunction} [onComplete]\r\n * @prop {VoidFunction} [onFinish]\r\n */\r\n\r\n/** @typedef {SpringAnimation | CSSAnimation} Animation */\r\n/** @typedef {SpringAnimationProps | CssAnimationProps} AnimationProps */\r\n\r\n/**\r\n * Manages animations\r\n */\r\nclass Animations {\r\n constructor() {\r\n /** @type {Animation[]} */\r\n this.activeAnimations = [];\r\n }\r\n\r\n /**\r\n * @param {SpringAnimationProps} props\r\n */\r\n startSpring(props) {\r\n this._start(props, true);\r\n }\r\n\r\n /**\r\n * @param {CssAnimationProps} props\r\n */\r\n startTransition(props) {\r\n this._start(props);\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {AnimationProps} props\r\n * @param {boolean} [isSpring]\r\n * @returns {Animation}\r\n */\r\n _start(props, isSpring) {\r\n const animation = isSpring\r\n ? new SpringAnimation(/** @type SpringAnimationProps */ (props))\r\n : new CSSAnimation(/** @type CssAnimationProps */ (props));\r\n\r\n this.activeAnimations.push(animation);\r\n animation.onFinish = () => this.stop(animation);\r\n\r\n return animation;\r\n }\r\n\r\n /**\r\n * @param {Animation} animation\r\n */\r\n stop(animation) {\r\n animation.destroy();\r\n const index = this.activeAnimations.indexOf(animation);\r\n if (index > -1) {\r\n this.activeAnimations.splice(index, 1);\r\n }\r\n }\r\n\r\n stopAll() { // _stopAllAnimations\r\n this.activeAnimations.forEach((animation) => {\r\n animation.destroy();\r\n });\r\n this.activeAnimations = [];\r\n }\r\n\r\n /**\r\n * Stop all pan or zoom transitions\r\n */\r\n stopAllPan() {\r\n this.activeAnimations = this.activeAnimations.filter((animation) => {\r\n if (animation.props.isPan) {\r\n animation.destroy();\r\n return false;\r\n }\r\n\r\n return true;\r\n });\r\n }\r\n\r\n stopMainScroll() {\r\n this.activeAnimations = this.activeAnimations.filter((animation) => {\r\n if (animation.props.isMainScroll) {\r\n animation.destroy();\r\n return false;\r\n }\r\n\r\n return true;\r\n });\r\n }\r\n\r\n /**\r\n * Returns true if main scroll transition is running\r\n */\r\n // isMainScrollRunning() {\r\n // return this.activeAnimations.some((animation) => {\r\n // return animation.props.isMainScroll;\r\n // });\r\n // }\r\n\r\n /**\r\n * Returns true if any pan or zoom transition is running\r\n */\r\n isPanRunning() {\r\n return this.activeAnimations.some((animation) => {\r\n return animation.props.isPan;\r\n });\r\n }\r\n}\r\n\r\nexport default Animations;\r\n","/** @typedef {import('./photoswipe.js').default} PhotoSwipe */\r\n\r\n/**\r\n * Handles scroll wheel.\r\n * Can pan and zoom current slide image.\r\n */\r\nclass ScrollWheel {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n pswp.events.add(pswp.element, 'wheel', /** @type EventListener */(this._onWheel.bind(this)));\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {WheelEvent} e\r\n */\r\n _onWheel(e) {\r\n e.preventDefault();\r\n const { currSlide } = this.pswp;\r\n let { deltaX, deltaY } = e;\r\n\r\n if (!currSlide) {\r\n return;\r\n }\r\n\r\n if (this.pswp.dispatch('wheel', { originalEvent: e }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (e.ctrlKey || this.pswp.options.wheelToZoom) {\r\n // zoom\r\n if (currSlide.isZoomable()) {\r\n let zoomFactor = -deltaY;\r\n if (e.deltaMode === 1 /* DOM_DELTA_LINE */) {\r\n zoomFactor *= 0.05;\r\n } else {\r\n zoomFactor *= e.deltaMode ? 1 : 0.002;\r\n }\r\n zoomFactor = 2 ** zoomFactor;\r\n\r\n const destZoomLevel = currSlide.currZoomLevel * zoomFactor;\r\n currSlide.zoomTo(destZoomLevel, {\r\n x: e.clientX,\r\n y: e.clientY\r\n });\r\n }\r\n } else {\r\n // pan\r\n if (currSlide.isPannable()) {\r\n if (e.deltaMode === 1 /* DOM_DELTA_LINE */) {\r\n // 18 - average line height\r\n deltaX *= 18;\r\n deltaY *= 18;\r\n }\r\n\r\n currSlide.panTo(\r\n currSlide.pan.x - deltaX,\r\n currSlide.pan.y - deltaY\r\n );\r\n }\r\n }\r\n }\r\n}\r\n\r\nexport default ScrollWheel;\r\n","import { createElement } from '../util/util.js';\r\n\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n\r\n/**\r\n * @template T\r\n * @typedef {import('../types.js').Methods} Methods\r\n */\r\n\r\n/**\r\n * @typedef {Object} UIElementMarkupProps\r\n * @prop {boolean} [isCustomSVG]\r\n * @prop {string} inner\r\n * @prop {string} [outlineID]\r\n * @prop {number | string} [size]\r\n */\r\n\r\n/**\r\n * @typedef {Object} UIElementData\r\n * @prop {DefaultUIElements | string} [name]\r\n * @prop {string} [className]\r\n * @prop {UIElementMarkup} [html]\r\n * @prop {boolean} [isButton]\r\n * @prop {keyof HTMLElementTagNameMap} [tagName]\r\n * @prop {string} [title]\r\n * @prop {string} [ariaLabel]\r\n * @prop {(element: HTMLElement, pswp: PhotoSwipe) => void} [onInit]\r\n * @prop {Methods | ((e: MouseEvent, element: HTMLElement, pswp: PhotoSwipe) => void)} [onClick]\r\n * @prop {'bar' | 'wrapper' | 'root'} [appendTo]\r\n * @prop {number} [order]\r\n */\r\n\r\n/** @typedef {'arrowPrev' | 'arrowNext' | 'close' | 'zoom' | 'counter'} DefaultUIElements */\r\n\r\n/** @typedef {string | UIElementMarkupProps} UIElementMarkup */\r\n\r\n/**\r\n * @param {UIElementMarkup} [htmlData]\r\n * @returns {string}\r\n */\r\nfunction addElementHTML(htmlData) {\r\n if (typeof htmlData === 'string') {\r\n // Allow developers to provide full svg,\r\n // For example:\r\n // \r\n // \r\n // \r\n // \r\n // Can also be any HTML string.\r\n return htmlData;\r\n }\r\n\r\n if (!htmlData || !htmlData.isCustomSVG) {\r\n return '';\r\n }\r\n\r\n const svgData = htmlData;\r\n let out = '';\r\n // replace all %d with size\r\n out = out.split('%d').join(/** @type {string} */ (svgData.size || 32));\r\n\r\n // Icons may contain outline/shadow,\r\n // to make it we \"clone\" base icon shape and add border to it.\r\n // Icon itself and border are styled via CSS.\r\n //\r\n // Property shadowID defines ID of element that should be cloned.\r\n if (svgData.outlineID) {\r\n out += '';\r\n }\r\n\r\n out += svgData.inner;\r\n\r\n out += '';\r\n\r\n return out;\r\n}\r\n\r\nclass UIElement {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n * @param {UIElementData} data\r\n */\r\n constructor(pswp, data) {\r\n const name = data.name || data.className;\r\n let elementHTML = data.html;\r\n\r\n // @ts-expect-error lookup only by `data.name` maybe?\r\n if (pswp.options[name] === false) {\r\n // exit if element is disabled from options\r\n return;\r\n }\r\n\r\n // Allow to override SVG icons from options\r\n // @ts-expect-error lookup only by `data.name` maybe?\r\n if (typeof pswp.options[name + 'SVG'] === 'string') {\r\n // arrowPrevSVG\r\n // arrowNextSVG\r\n // closeSVG\r\n // zoomSVG\r\n // @ts-expect-error lookup only by `data.name` maybe?\r\n elementHTML = pswp.options[name + 'SVG'];\r\n }\r\n\r\n pswp.dispatch('uiElementCreate', { data });\r\n\r\n let className = '';\r\n if (data.isButton) {\r\n className += 'pswp__button ';\r\n className += (data.className || `pswp__button--${data.name}`);\r\n } else {\r\n className += (data.className || `pswp__${data.name}`);\r\n }\r\n\r\n let tagName = data.isButton ? (data.tagName || 'button') : (data.tagName || 'div');\r\n tagName = /** @type {keyof HTMLElementTagNameMap} */ (tagName.toLowerCase());\r\n /** @type {HTMLElement} */\r\n const element = createElement(className, tagName);\r\n\r\n if (data.isButton) {\r\n if (tagName === 'button') {\r\n /** @type {HTMLButtonElement} */ (element).type = 'button';\r\n }\r\n\r\n let { title } = data;\r\n const { ariaLabel } = data;\r\n\r\n // @ts-expect-error lookup only by `data.name` maybe?\r\n if (typeof pswp.options[name + 'Title'] === 'string') {\r\n // @ts-expect-error lookup only by `data.name` maybe?\r\n title = pswp.options[name + 'Title'];\r\n }\r\n\r\n if (title) {\r\n element.title = title;\r\n }\r\n\r\n const ariaText = ariaLabel || title;\r\n if (ariaText) {\r\n element.setAttribute('aria-label', ariaText);\r\n }\r\n }\r\n\r\n element.innerHTML = addElementHTML(elementHTML);\r\n\r\n if (data.onInit) {\r\n data.onInit(element, pswp);\r\n }\r\n\r\n if (data.onClick) {\r\n element.onclick = (e) => {\r\n if (typeof data.onClick === 'string') {\r\n // @ts-ignore\r\n pswp[data.onClick]();\r\n } else if (typeof data.onClick === 'function') {\r\n data.onClick(e, element, pswp);\r\n }\r\n };\r\n }\r\n\r\n // Top bar is default position\r\n const appendTo = data.appendTo || 'bar';\r\n /** @type {HTMLElement | undefined} root element by default */\r\n let container = pswp.element;\r\n if (appendTo === 'bar') {\r\n if (!pswp.topBar) {\r\n pswp.topBar = createElement('pswp__top-bar pswp__hide-on-close', 'div', pswp.scrollWrap);\r\n }\r\n container = pswp.topBar;\r\n } else {\r\n // element outside of top bar gets a secondary class\r\n // that makes element fade out on close\r\n element.classList.add('pswp__hide-on-close');\r\n\r\n if (appendTo === 'wrapper') {\r\n container = pswp.scrollWrap;\r\n }\r\n }\r\n\r\n container?.appendChild(pswp.applyFilters('uiElement', element, data));\r\n }\r\n}\r\n\r\nexport default UIElement;\r\n","/*\r\n Backward and forward arrow buttons\r\n */\r\n\r\n/** @typedef {import('./ui-element.js').UIElementData} UIElementData */\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n\r\n/**\r\n *\r\n * @param {HTMLElement} element\r\n * @param {PhotoSwipe} pswp\r\n * @param {boolean} [isNextButton]\r\n */\r\nfunction initArrowButton(element, pswp, isNextButton) {\r\n element.classList.add('pswp__button--arrow');\r\n // TODO: this should point to a unique id for this instance\r\n element.setAttribute('aria-controls', 'pswp__items');\r\n pswp.on('change', () => {\r\n if (!pswp.options.loop) {\r\n if (isNextButton) {\r\n /** @type {HTMLButtonElement} */\r\n (element).disabled = !(pswp.currIndex < pswp.getNumItems() - 1);\r\n } else {\r\n /** @type {HTMLButtonElement} */\r\n (element).disabled = !(pswp.currIndex > 0);\r\n }\r\n }\r\n });\r\n}\r\n\r\n/** @type {UIElementData} */\r\nexport const arrowPrev = {\r\n name: 'arrowPrev',\r\n className: 'pswp__button--arrow--prev',\r\n title: 'Previous',\r\n order: 10,\r\n isButton: true,\r\n appendTo: 'wrapper',\r\n html: {\r\n isCustomSVG: true,\r\n size: 60,\r\n inner: '',\r\n outlineID: 'pswp__icn-arrow'\r\n },\r\n onClick: 'prev',\r\n onInit: initArrowButton\r\n};\r\n\r\n/** @type {UIElementData} */\r\nexport const arrowNext = {\r\n name: 'arrowNext',\r\n className: 'pswp__button--arrow--next',\r\n title: 'Next',\r\n order: 11,\r\n isButton: true,\r\n appendTo: 'wrapper',\r\n html: {\r\n isCustomSVG: true,\r\n size: 60,\r\n inner: '',\r\n outlineID: 'pswp__icn-arrow'\r\n },\r\n onClick: 'next',\r\n onInit: (el, pswp) => {\r\n initArrowButton(el, pswp, true);\r\n }\r\n};\r\n","/** @type {import('./ui-element.js').UIElementData} UIElementData */\r\nconst closeButton = {\r\n name: 'close',\r\n title: 'Close',\r\n order: 20,\r\n isButton: true,\r\n html: {\r\n isCustomSVG: true,\r\n inner: '',\r\n outlineID: 'pswp__icn-close'\r\n },\r\n onClick: 'close'\r\n};\r\n\r\nexport default closeButton;\r\n","/** @type {import('./ui-element.js').UIElementData} UIElementData */\r\nconst zoomButton = {\r\n name: 'zoom',\r\n title: 'Zoom',\r\n order: 10,\r\n isButton: true,\r\n html: {\r\n isCustomSVG: true,\r\n // eslint-disable-next-line max-len\r\n inner: ''\r\n + ''\r\n + '',\r\n outlineID: 'pswp__icn-zoom'\r\n },\r\n onClick: 'toggleZoom'\r\n};\r\n\r\nexport default zoomButton;\r\n","/** @type {import('./ui-element.js').UIElementData} UIElementData */\r\nexport const loadingIndicator = {\r\n name: 'preloader',\r\n appendTo: 'bar',\r\n order: 7,\r\n html: {\r\n isCustomSVG: true,\r\n // eslint-disable-next-line max-len\r\n inner: '',\r\n outlineID: 'pswp__icn-loading'\r\n },\r\n onInit: (indicatorElement, pswp) => {\r\n /** @type {boolean | undefined} */\r\n let isVisible;\r\n /** @type {NodeJS.Timeout | null} */\r\n let delayTimeout = null;\r\n\r\n /**\r\n * @param {string} className\r\n * @param {boolean} add\r\n */\r\n const toggleIndicatorClass = (className, add) => {\r\n indicatorElement.classList.toggle('pswp__preloader--' + className, add);\r\n };\r\n\r\n /**\r\n * @param {boolean} visible\r\n */\r\n const setIndicatorVisibility = (visible) => {\r\n if (isVisible !== visible) {\r\n isVisible = visible;\r\n toggleIndicatorClass('active', visible);\r\n }\r\n };\r\n\r\n const updatePreloaderVisibility = () => {\r\n if (!pswp.currSlide?.content.isLoading()) {\r\n setIndicatorVisibility(false);\r\n if (delayTimeout) {\r\n clearTimeout(delayTimeout);\r\n delayTimeout = null;\r\n }\r\n return;\r\n }\r\n\r\n if (!delayTimeout) {\r\n // display loading indicator with delay\r\n delayTimeout = setTimeout(() => {\r\n setIndicatorVisibility(Boolean(pswp.currSlide?.content.isLoading()));\r\n delayTimeout = null;\r\n }, pswp.options.preloaderDelay);\r\n }\r\n };\r\n\r\n pswp.on('change', updatePreloaderVisibility);\r\n\r\n pswp.on('loadComplete', (e) => {\r\n if (pswp.currSlide === e.slide) {\r\n updatePreloaderVisibility();\r\n }\r\n });\r\n\r\n // expose the method\r\n if (pswp.ui) {\r\n pswp.ui.updatePreloaderVisibility = updatePreloaderVisibility;\r\n }\r\n }\r\n};\r\n","/** @type {import('./ui-element.js').UIElementData} UIElementData */\r\nexport const counterIndicator = {\r\n name: 'counter',\r\n order: 5,\r\n onInit: (counterElement, pswp) => {\r\n pswp.on('change', () => {\r\n counterElement.innerText = (pswp.currIndex + 1)\r\n + pswp.options.indexIndicatorSep\r\n + pswp.getNumItems();\r\n });\r\n }\r\n};\r\n","import UIElement from './ui-element.js';\r\nimport { arrowPrev, arrowNext } from './button-arrow.js';\r\nimport closeButton from './button-close.js';\r\nimport zoomButton from './button-zoom.js';\r\nimport { loadingIndicator } from './loading-indicator.js';\r\nimport { counterIndicator } from './counter-indicator.js';\r\n\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('./ui-element.js').UIElementData} UIElementData */\r\n\r\n/**\r\n * Set special class on element when image is zoomed.\r\n *\r\n * By default, it is used to adjust\r\n * zoom icon and zoom cursor via CSS.\r\n *\r\n * @param {HTMLElement} el\r\n * @param {boolean} isZoomedIn\r\n */\r\nfunction setZoomedIn(el, isZoomedIn) {\r\n el.classList.toggle('pswp--zoomed-in', isZoomedIn);\r\n}\r\n\r\nclass UI {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n this.isRegistered = false;\r\n /** @type {UIElementData[]} */\r\n this.uiElementsData = [];\r\n /** @type {(UIElement | UIElementData)[]} */\r\n this.items = [];\r\n /** @type {() => void} */\r\n this.updatePreloaderVisibility = () => {};\r\n\r\n /**\r\n * @private\r\n * @type {number | undefined}\r\n */\r\n this._lastUpdatedZoomLevel = undefined;\r\n }\r\n\r\n init() {\r\n const { pswp } = this;\r\n this.isRegistered = false;\r\n this.uiElementsData = [\r\n closeButton,\r\n arrowPrev,\r\n arrowNext,\r\n zoomButton,\r\n loadingIndicator,\r\n counterIndicator\r\n ];\r\n\r\n pswp.dispatch('uiRegister');\r\n\r\n // sort by order\r\n this.uiElementsData.sort((a, b) => {\r\n // default order is 0\r\n return (a.order || 0) - (b.order || 0);\r\n });\r\n\r\n this.items = [];\r\n\r\n this.isRegistered = true;\r\n this.uiElementsData.forEach((uiElementData) => {\r\n this.registerElement(uiElementData);\r\n });\r\n\r\n pswp.on('change', () => {\r\n pswp.element?.classList.toggle('pswp--one-slide', pswp.getNumItems() === 1);\r\n });\r\n\r\n pswp.on('zoomPanUpdate', () => this._onZoomPanUpdate());\r\n }\r\n\r\n /**\r\n * @param {UIElementData} elementData\r\n */\r\n registerElement(elementData) {\r\n if (this.isRegistered) {\r\n this.items.push(\r\n new UIElement(this.pswp, elementData)\r\n );\r\n } else {\r\n this.uiElementsData.push(elementData);\r\n }\r\n }\r\n\r\n /**\r\n * Fired each time zoom or pan position is changed.\r\n * Update classes that control visibility of zoom button and cursor icon.\r\n *\r\n * @private\r\n */\r\n _onZoomPanUpdate() {\r\n const { template, currSlide, options } = this.pswp;\r\n\r\n if (this.pswp.opener.isClosing || !template || !currSlide) {\r\n return;\r\n }\r\n\r\n let { currZoomLevel } = currSlide;\r\n\r\n // if not open yet - check against initial zoom level\r\n if (!this.pswp.opener.isOpen) {\r\n currZoomLevel = currSlide.zoomLevels.initial;\r\n }\r\n\r\n if (currZoomLevel === this._lastUpdatedZoomLevel) {\r\n return;\r\n }\r\n this._lastUpdatedZoomLevel = currZoomLevel;\r\n\r\n const currZoomLevelDiff = currSlide.zoomLevels.initial - currSlide.zoomLevels.secondary;\r\n\r\n // Initial and secondary zoom levels are almost equal\r\n if (Math.abs(currZoomLevelDiff) < 0.01 || !currSlide.isZoomable()) {\r\n // disable zoom\r\n setZoomedIn(template, false);\r\n template.classList.remove('pswp--zoom-allowed');\r\n return;\r\n }\r\n\r\n template.classList.add('pswp--zoom-allowed');\r\n\r\n const potentialZoomLevel = currZoomLevel === currSlide.zoomLevels.initial\r\n ? currSlide.zoomLevels.secondary : currSlide.zoomLevels.initial;\r\n\r\n setZoomedIn(template, potentialZoomLevel <= currZoomLevel);\r\n\r\n if (options.imageClickAction === 'zoom'\r\n || options.imageClickAction === 'zoom-or-close') {\r\n template.classList.add('pswp--click-to-zoom');\r\n }\r\n }\r\n}\r\n\r\nexport default UI;\r\n","/** @typedef {import('./slide.js').SlideData} SlideData */\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n\r\n/** @typedef {{ x: number; y: number; w: number; innerRect?: { w: number; h: number; x: number; y: number } }} Bounds */\r\n\r\n/**\r\n * @param {HTMLElement} el\r\n * @returns Bounds\r\n */\r\nfunction getBoundsByElement(el) {\r\n const thumbAreaRect = el.getBoundingClientRect();\r\n return {\r\n x: thumbAreaRect.left,\r\n y: thumbAreaRect.top,\r\n w: thumbAreaRect.width\r\n };\r\n}\r\n\r\n/**\r\n * @param {HTMLElement} el\r\n * @param {number} imageWidth\r\n * @param {number} imageHeight\r\n * @returns Bounds\r\n */\r\nfunction getCroppedBoundsByElement(el, imageWidth, imageHeight) {\r\n const thumbAreaRect = el.getBoundingClientRect();\r\n\r\n // fill image into the area\r\n // (do they same as object-fit:cover does to retrieve coordinates)\r\n const hRatio = thumbAreaRect.width / imageWidth;\r\n const vRatio = thumbAreaRect.height / imageHeight;\r\n const fillZoomLevel = hRatio > vRatio ? hRatio : vRatio;\r\n\r\n const offsetX = (thumbAreaRect.width - imageWidth * fillZoomLevel) / 2;\r\n const offsetY = (thumbAreaRect.height - imageHeight * fillZoomLevel) / 2;\r\n\r\n /**\r\n * Coordinates of the image,\r\n * as if it was not cropped,\r\n * height is calculated automatically\r\n *\r\n * @type {Bounds}\r\n */\r\n const bounds = {\r\n x: thumbAreaRect.left + offsetX,\r\n y: thumbAreaRect.top + offsetY,\r\n w: imageWidth * fillZoomLevel\r\n };\r\n\r\n // Coordinates of inner crop area\r\n // relative to the image\r\n bounds.innerRect = {\r\n w: thumbAreaRect.width,\r\n h: thumbAreaRect.height,\r\n x: offsetX,\r\n y: offsetY\r\n };\r\n\r\n return bounds;\r\n}\r\n\r\n/**\r\n * Get dimensions of thumbnail image\r\n * (click on which opens photoswipe or closes photoswipe to)\r\n *\r\n * @param {number} index\r\n * @param {SlideData} itemData\r\n * @param {PhotoSwipe} instance PhotoSwipe instance\r\n * @returns {Bounds | undefined}\r\n */\r\nexport function getThumbBounds(index, itemData, instance) {\r\n // legacy event, before filters were introduced\r\n const event = instance.dispatch('thumbBounds', {\r\n index,\r\n itemData,\r\n instance\r\n });\r\n // @ts-expect-error\r\n if (event.thumbBounds) {\r\n // @ts-expect-error\r\n return event.thumbBounds;\r\n }\r\n\r\n const { element } = itemData;\r\n /** @type {Bounds | undefined} */\r\n let thumbBounds;\r\n /** @type {HTMLElement | null | undefined} */\r\n let thumbnail;\r\n\r\n if (element && instance.options.thumbSelector !== false) {\r\n const thumbSelector = instance.options.thumbSelector || 'img';\r\n thumbnail = element.matches(thumbSelector)\r\n ? element : /** @type {HTMLElement | null} */ (element.querySelector(thumbSelector));\r\n }\r\n\r\n thumbnail = instance.applyFilters('thumbEl', thumbnail, itemData, index);\r\n\r\n if (thumbnail) {\r\n if (!itemData.thumbCropped) {\r\n thumbBounds = getBoundsByElement(thumbnail);\r\n } else {\r\n thumbBounds = getCroppedBoundsByElement(\r\n thumbnail,\r\n itemData.width || itemData.w || 0,\r\n itemData.height || itemData.h || 0\r\n );\r\n }\r\n }\r\n\r\n return instance.applyFilters('thumbBounds', thumbBounds, itemData, index);\r\n}\r\n","/** @typedef {import('../lightbox/lightbox.js').default} PhotoSwipeLightbox */\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../photoswipe.js').DataSource} DataSource */\r\n/** @typedef {import('../ui/ui-element.js').UIElementData} UIElementData */\r\n/** @typedef {import('../slide/content.js').default} ContentDefault */\r\n/** @typedef {import('../slide/slide.js').default} Slide */\r\n/** @typedef {import('../slide/slide.js').SlideData} SlideData */\r\n/** @typedef {import('../slide/zoom-level.js').default} ZoomLevel */\r\n/** @typedef {import('../slide/get-thumb-bounds.js').Bounds} Bounds */\r\n\r\n/**\r\n * Allow adding an arbitrary props to the Content\r\n * https://photoswipe.com/custom-content/#using-webp-image-format\r\n * @typedef {ContentDefault & Record} Content\r\n */\r\n/** @typedef {{ x?: number; y?: number }} Point */\r\n\r\n/**\r\n * @typedef {Object} PhotoSwipeEventsMap https://photoswipe.com/events/\r\n *\r\n *\r\n * https://photoswipe.com/adding-ui-elements/\r\n *\r\n * @prop {undefined} uiRegister\r\n * @prop {{ data: UIElementData }} uiElementCreate\r\n *\r\n *\r\n * https://photoswipe.com/events/#initialization-events\r\n *\r\n * @prop {undefined} beforeOpen\r\n * @prop {undefined} firstUpdate\r\n * @prop {undefined} initialLayout\r\n * @prop {undefined} change\r\n * @prop {undefined} afterInit\r\n * @prop {undefined} bindEvents\r\n *\r\n *\r\n * https://photoswipe.com/events/#opening-or-closing-transition-events\r\n *\r\n * @prop {undefined} openingAnimationStart\r\n * @prop {undefined} openingAnimationEnd\r\n * @prop {undefined} closingAnimationStart\r\n * @prop {undefined} closingAnimationEnd\r\n *\r\n *\r\n * https://photoswipe.com/events/#closing-events\r\n *\r\n * @prop {undefined} close\r\n * @prop {undefined} destroy\r\n *\r\n *\r\n * https://photoswipe.com/events/#pointer-and-gesture-events\r\n *\r\n * @prop {{ originalEvent: PointerEvent }} pointerDown\r\n * @prop {{ originalEvent: PointerEvent }} pointerMove\r\n * @prop {{ originalEvent: PointerEvent }} pointerUp\r\n * @prop {{ bgOpacity: number }} pinchClose can be default prevented\r\n * @prop {{ panY: number }} verticalDrag can be default prevented\r\n *\r\n *\r\n * https://photoswipe.com/events/#slide-content-events\r\n *\r\n * @prop {{ content: Content }} contentInit\r\n * @prop {{ content: Content; isLazy: boolean }} contentLoad can be default prevented\r\n * @prop {{ content: Content; isLazy: boolean }} contentLoadImage can be default prevented\r\n * @prop {{ content: Content; slide: Slide; isError?: boolean }} loadComplete\r\n * @prop {{ content: Content; slide: Slide }} loadError\r\n * @prop {{ content: Content; width: number; height: number }} contentResize can be default prevented\r\n * @prop {{ content: Content; width: number; height: number; slide: Slide }} imageSizeChange\r\n * @prop {{ content: Content }} contentLazyLoad can be default prevented\r\n * @prop {{ content: Content }} contentAppend can be default prevented\r\n * @prop {{ content: Content }} contentActivate can be default prevented\r\n * @prop {{ content: Content }} contentDeactivate can be default prevented\r\n * @prop {{ content: Content }} contentRemove can be default prevented\r\n * @prop {{ content: Content }} contentDestroy can be default prevented\r\n *\r\n *\r\n * undocumented\r\n *\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} imageClickAction can be default prevented\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} bgClickAction can be default prevented\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} tapAction can be default prevented\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} doubleTapAction can be default prevented\r\n *\r\n * @prop {{ originalEvent: KeyboardEvent }} keydown can be default prevented\r\n * @prop {{ x: number; dragging: boolean }} moveMainScroll\r\n * @prop {{ slide: Slide }} firstZoomPan\r\n * @prop {{ slide: Slide | undefined, data: SlideData, index: number }} gettingData\r\n * @prop {undefined} beforeResize\r\n * @prop {undefined} resize\r\n * @prop {undefined} viewportSize\r\n * @prop {undefined} updateScrollOffset\r\n * @prop {{ slide: Slide }} slideInit\r\n * @prop {{ slide: Slide }} afterSetContent\r\n * @prop {{ slide: Slide }} slideLoad\r\n * @prop {{ slide: Slide }} appendHeavy can be default prevented\r\n * @prop {{ slide: Slide }} appendHeavyContent\r\n * @prop {{ slide: Slide }} slideActivate\r\n * @prop {{ slide: Slide }} slideDeactivate\r\n * @prop {{ slide: Slide }} slideDestroy\r\n * @prop {{ destZoomLevel: number, centerPoint: Point | undefined, transitionDuration: number | false | undefined }} beforeZoomTo\r\n * @prop {{ slide: Slide }} zoomPanUpdate\r\n * @prop {{ slide: Slide }} initialZoomPan\r\n * @prop {{ slide: Slide }} calcSlideSize\r\n * @prop {undefined} resolutionChanged\r\n * @prop {{ originalEvent: WheelEvent }} wheel can be default prevented\r\n * @prop {{ content: Content }} contentAppendImage can be default prevented\r\n * @prop {{ index: number; itemData: SlideData }} lazyLoadSlide can be default prevented\r\n * @prop {undefined} lazyLoad\r\n * @prop {{ slide: Slide }} calcBounds\r\n * @prop {{ zoomLevels: ZoomLevel, slideData: SlideData }} zoomLevelsUpdate\r\n *\r\n *\r\n * legacy\r\n *\r\n * @prop {undefined} init\r\n * @prop {undefined} initialZoomIn\r\n * @prop {undefined} initialZoomOut\r\n * @prop {undefined} initialZoomInEnd\r\n * @prop {undefined} initialZoomOutEnd\r\n * @prop {{ dataSource: DataSource | undefined, numItems: number }} numItems\r\n * @prop {{ itemData: SlideData; index: number }} itemData\r\n * @prop {{ index: number, itemData: SlideData, instance: PhotoSwipe }} thumbBounds\r\n */\r\n\r\n/**\r\n * @typedef {Object} PhotoSwipeFiltersMap https://photoswipe.com/filters/\r\n *\r\n * @prop {(numItems: number, dataSource: DataSource | undefined) => number} numItems\r\n * Modify the total amount of slides. Example on Data sources page.\r\n * https://photoswipe.com/filters/#numitems\r\n *\r\n * @prop {(itemData: SlideData, index: number) => SlideData} itemData\r\n * Modify slide item data. Example on Data sources page.\r\n * https://photoswipe.com/filters/#itemdata\r\n *\r\n * @prop {(itemData: SlideData, element: HTMLElement, linkEl: HTMLAnchorElement) => SlideData} domItemData\r\n * Modify item data when it's parsed from DOM element. Example on Data sources page.\r\n * https://photoswipe.com/filters/#domitemdata\r\n *\r\n * @prop {(clickedIndex: number, e: MouseEvent, instance: PhotoSwipeLightbox) => number} clickedIndex\r\n * Modify clicked gallery item index.\r\n * https://photoswipe.com/filters/#clickedindex\r\n *\r\n * @prop {(placeholderSrc: string | false, content: Content) => string | false} placeholderSrc\r\n * Modify placeholder image source.\r\n * https://photoswipe.com/filters/#placeholdersrc\r\n *\r\n * @prop {(isContentLoading: boolean, content: Content) => boolean} isContentLoading\r\n * Modify if the content is currently loading.\r\n * https://photoswipe.com/filters/#iscontentloading\r\n *\r\n * @prop {(isContentZoomable: boolean, content: Content) => boolean} isContentZoomable\r\n * Modify if the content can be zoomed.\r\n * https://photoswipe.com/filters/#iscontentzoomable\r\n *\r\n * @prop {(useContentPlaceholder: boolean, content: Content) => boolean} useContentPlaceholder\r\n * Modify if the placeholder should be used for the content.\r\n * https://photoswipe.com/filters/#usecontentplaceholder\r\n *\r\n * @prop {(isKeepingPlaceholder: boolean, content: Content) => boolean} isKeepingPlaceholder\r\n * Modify if the placeholder should be kept after the content is loaded.\r\n * https://photoswipe.com/filters/#iskeepingplaceholder\r\n *\r\n *\r\n * @prop {(contentErrorElement: HTMLElement, content: Content) => HTMLElement} contentErrorElement\r\n * Modify an element when the content has error state (for example, if image cannot be loaded).\r\n * https://photoswipe.com/filters/#contenterrorelement\r\n *\r\n * @prop {(element: HTMLElement, data: UIElementData) => HTMLElement} uiElement\r\n * Modify a UI element that's being created.\r\n * https://photoswipe.com/filters/#uielement\r\n *\r\n * @prop {(thumbnail: HTMLElement | null | undefined, itemData: SlideData, index: number) => HTMLElement} thumbEl\r\n * Modify the thumbnail element from which opening zoom animation starts or ends.\r\n * https://photoswipe.com/filters/#thumbel\r\n *\r\n * @prop {(thumbBounds: Bounds | undefined, itemData: SlideData, index: number) => Bounds} thumbBounds\r\n * Modify the thumbnail bounds from which opening zoom animation starts or ends.\r\n * https://photoswipe.com/filters/#thumbbounds\r\n *\r\n * @prop {(srcsetSizesWidth: number, content: Content) => number} srcsetSizesWidth\r\n *\r\n * @prop {(preventPointerEvent: boolean, event: PointerEvent, pointerType: string) => boolean} preventPointerEvent\r\n *\r\n */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @typedef {{ fn: PhotoSwipeFiltersMap[T], priority: number }} Filter\r\n */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {PhotoSwipeEventsMap[T] extends undefined ? PhotoSwipeEvent : PhotoSwipeEvent & PhotoSwipeEventsMap[T]} AugmentedEvent\r\n */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {(event: AugmentedEvent) => void} EventCallback\r\n */\r\n\r\n/**\r\n * Base PhotoSwipe event object\r\n *\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n */\r\nclass PhotoSwipeEvent {\r\n /**\r\n * @param {T} type\r\n * @param {PhotoSwipeEventsMap[T]} [details]\r\n */\r\n constructor(type, details) {\r\n this.type = type;\r\n this.defaultPrevented = false;\r\n if (details) {\r\n Object.assign(this, details);\r\n }\r\n }\r\n\r\n preventDefault() {\r\n this.defaultPrevented = true;\r\n }\r\n}\r\n\r\n/**\r\n * PhotoSwipe base class that can listen and dispatch for events.\r\n * Shared by PhotoSwipe Core and PhotoSwipe Lightbox, extended by base.js\r\n */\r\nclass Eventable {\r\n constructor() {\r\n /**\r\n * @type {{ [T in keyof PhotoSwipeEventsMap]?: ((event: AugmentedEvent) => void)[] }}\r\n */\r\n this._listeners = {};\r\n\r\n /**\r\n * @type {{ [T in keyof PhotoSwipeFiltersMap]?: Filter[] }}\r\n */\r\n this._filters = {};\r\n\r\n /** @type {PhotoSwipe | undefined} */\r\n this.pswp = undefined;\r\n\r\n /** @type {PhotoSwipeOptions | undefined} */\r\n this.options = undefined;\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @param {T} name\r\n * @param {PhotoSwipeFiltersMap[T]} fn\r\n * @param {number} priority\r\n */\r\n addFilter(name, fn, priority = 100) {\r\n if (!this._filters[name]) {\r\n this._filters[name] = [];\r\n }\r\n\r\n this._filters[name]?.push({ fn, priority });\r\n this._filters[name]?.sort((f1, f2) => f1.priority - f2.priority);\r\n\r\n this.pswp?.addFilter(name, fn, priority);\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @param {T} name\r\n * @param {PhotoSwipeFiltersMap[T]} fn\r\n */\r\n removeFilter(name, fn) {\r\n if (this._filters[name]) {\r\n // @ts-expect-error\r\n this._filters[name] = this._filters[name].filter(filter => (filter.fn !== fn));\r\n }\r\n\r\n if (this.pswp) {\r\n this.pswp.removeFilter(name, fn);\r\n }\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @param {T} name\r\n * @param {Parameters} args\r\n * @returns {Parameters[0]}\r\n */\r\n applyFilters(name, ...args) {\r\n this._filters[name]?.forEach((filter) => {\r\n // @ts-expect-error\r\n args[0] = filter.fn.apply(this, args);\r\n });\r\n return args[0];\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @param {T} name\r\n * @param {EventCallback} fn\r\n */\r\n on(name, fn) {\r\n if (!this._listeners[name]) {\r\n this._listeners[name] = [];\r\n }\r\n this._listeners[name]?.push(fn);\r\n\r\n // When binding events to lightbox,\r\n // also bind events to PhotoSwipe Core,\r\n // if it's open.\r\n this.pswp?.on(name, fn);\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @param {T} name\r\n * @param {EventCallback} fn\r\n */\r\n off(name, fn) {\r\n if (this._listeners[name]) {\r\n // @ts-expect-error\r\n this._listeners[name] = this._listeners[name].filter(listener => (fn !== listener));\r\n }\r\n\r\n this.pswp?.off(name, fn);\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @param {T} name\r\n * @param {PhotoSwipeEventsMap[T]} [details]\r\n * @returns {AugmentedEvent}\r\n */\r\n dispatch(name, details) {\r\n if (this.pswp) {\r\n return this.pswp.dispatch(name, details);\r\n }\r\n\r\n const event = /** @type {AugmentedEvent} */ (new PhotoSwipeEvent(name, details));\r\n\r\n this._listeners[name]?.forEach((listener) => {\r\n listener.call(this, event);\r\n });\r\n\r\n return event;\r\n }\r\n}\r\n\r\nexport default Eventable;\r\n","import { createElement, setWidthHeight, toTransformString } from '../util/util.js';\r\n\r\nclass Placeholder {\r\n /**\r\n * @param {string | false} imageSrc\r\n * @param {HTMLElement} container\r\n */\r\n constructor(imageSrc, container) {\r\n // Create placeholder\r\n // (stretched thumbnail or simple div behind the main image)\r\n /** @type {HTMLImageElement | HTMLDivElement | null} */\r\n this.element = createElement(\r\n 'pswp__img pswp__img--placeholder',\r\n imageSrc ? 'img' : 'div',\r\n container\r\n );\r\n\r\n if (imageSrc) {\r\n const imgEl = /** @type {HTMLImageElement} */ (this.element);\r\n imgEl.decoding = 'async';\r\n imgEl.alt = '';\r\n imgEl.src = imageSrc;\r\n imgEl.setAttribute('role', 'presentation');\r\n }\r\n\r\n this.element.setAttribute('aria-hidden', 'true');\r\n }\r\n\r\n /**\r\n * @param {number} width\r\n * @param {number} height\r\n */\r\n setDisplayedSize(width, height) {\r\n if (!this.element) {\r\n return;\r\n }\r\n\r\n if (this.element.tagName === 'IMG') {\r\n // Use transform scale() to modify img placeholder size\r\n // (instead of changing width/height directly).\r\n // This helps with performance, specifically in iOS15 Safari.\r\n setWidthHeight(this.element, 250, 'auto');\r\n this.element.style.transformOrigin = '0 0';\r\n this.element.style.transform = toTransformString(0, 0, width / 250);\r\n } else {\r\n setWidthHeight(this.element, width, height);\r\n }\r\n }\r\n\r\n destroy() {\r\n if (this.element?.parentNode) {\r\n this.element.remove();\r\n }\r\n this.element = null;\r\n }\r\n}\r\n\r\nexport default Placeholder;\r\n","import { createElement, isSafari, LOAD_STATE, setWidthHeight } from '../util/util.js';\r\nimport Placeholder from './placeholder.js';\r\n\r\n/** @typedef {import('./slide.js').default} Slide */\r\n/** @typedef {import('./slide.js').SlideData} SlideData */\r\n/** @typedef {import('../core/base.js').default} PhotoSwipeBase */\r\n/** @typedef {import('../util/util.js').LoadState} LoadState */\r\n\r\nclass Content {\r\n /**\r\n * @param {SlideData} itemData Slide data\r\n * @param {PhotoSwipeBase} instance PhotoSwipe or PhotoSwipeLightbox instance\r\n * @param {number} index\r\n */\r\n constructor(itemData, instance, index) {\r\n this.instance = instance;\r\n this.data = itemData;\r\n this.index = index;\r\n\r\n /** @type {HTMLImageElement | HTMLDivElement | undefined} */\r\n this.element = undefined;\r\n /** @type {Placeholder | undefined} */\r\n this.placeholder = undefined;\r\n /** @type {Slide | undefined} */\r\n this.slide = undefined;\r\n\r\n this.displayedImageWidth = 0;\r\n this.displayedImageHeight = 0;\r\n\r\n this.width = Number(this.data.w) || Number(this.data.width) || 0;\r\n this.height = Number(this.data.h) || Number(this.data.height) || 0;\r\n\r\n this.isAttached = false;\r\n this.hasSlide = false;\r\n this.isDecoding = false;\r\n /** @type {LoadState} */\r\n this.state = LOAD_STATE.IDLE;\r\n\r\n if (this.data.type) {\r\n this.type = this.data.type;\r\n } else if (this.data.src) {\r\n this.type = 'image';\r\n } else {\r\n this.type = 'html';\r\n }\r\n\r\n this.instance.dispatch('contentInit', { content: this });\r\n }\r\n\r\n removePlaceholder() {\r\n if (this.placeholder && !this.keepPlaceholder()) {\r\n // With delay, as image might be loaded, but not rendered\r\n setTimeout(() => {\r\n if (this.placeholder) {\r\n this.placeholder.destroy();\r\n this.placeholder = undefined;\r\n }\r\n }, 1000);\r\n }\r\n }\r\n\r\n /**\r\n * Preload content\r\n *\r\n * @param {boolean} isLazy\r\n * @param {boolean} [reload]\r\n */\r\n load(isLazy, reload) {\r\n if (this.slide && this.usePlaceholder()) {\r\n if (!this.placeholder) {\r\n const placeholderSrc = this.instance.applyFilters(\r\n 'placeholderSrc',\r\n // use image-based placeholder only for the first slide,\r\n // as rendering (even small stretched thumbnail) is an expensive operation\r\n (this.data.msrc && this.slide.isFirstSlide) ? this.data.msrc : false,\r\n this\r\n );\r\n this.placeholder = new Placeholder(\r\n placeholderSrc,\r\n this.slide.container\r\n );\r\n } else {\r\n const placeholderEl = this.placeholder.element;\r\n // Add placeholder to DOM if it was already created\r\n if (placeholderEl && !placeholderEl.parentElement) {\r\n this.slide.container.prepend(placeholderEl);\r\n }\r\n }\r\n }\r\n\r\n if (this.element && !reload) {\r\n return;\r\n }\r\n\r\n if (this.instance.dispatch('contentLoad', { content: this, isLazy }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (this.isImageContent()) {\r\n this.element = createElement('pswp__img', 'img');\r\n // Start loading only after width is defined, as sizes might depend on it.\r\n // Due to Safari feature, we must define sizes before srcset.\r\n if (this.displayedImageWidth) {\r\n this.loadImage(isLazy);\r\n }\r\n } else {\r\n this.element = createElement('pswp__content', 'div');\r\n this.element.innerHTML = this.data.html || '';\r\n }\r\n\r\n if (reload && this.slide) {\r\n this.slide.updateContentSize(true);\r\n }\r\n }\r\n\r\n /**\r\n * Preload image\r\n *\r\n * @param {boolean} isLazy\r\n */\r\n loadImage(isLazy) {\r\n if (!this.isImageContent()\r\n || !this.element\r\n || this.instance.dispatch('contentLoadImage', { content: this, isLazy }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n const imageElement = /** @type HTMLImageElement */ (this.element);\r\n\r\n this.updateSrcsetSizes();\r\n\r\n if (this.data.srcset) {\r\n imageElement.srcset = this.data.srcset;\r\n }\r\n\r\n imageElement.src = this.data.src ?? '';\r\n imageElement.alt = this.data.alt ?? '';\r\n\r\n this.state = LOAD_STATE.LOADING;\r\n\r\n if (imageElement.complete) {\r\n this.onLoaded();\r\n } else {\r\n imageElement.onload = () => {\r\n this.onLoaded();\r\n };\r\n\r\n imageElement.onerror = () => {\r\n this.onError();\r\n };\r\n }\r\n }\r\n\r\n /**\r\n * Assign slide to content\r\n *\r\n * @param {Slide} slide\r\n */\r\n setSlide(slide) {\r\n this.slide = slide;\r\n this.hasSlide = true;\r\n this.instance = slide.pswp;\r\n\r\n // todo: do we need to unset slide?\r\n }\r\n\r\n /**\r\n * Content load success handler\r\n */\r\n onLoaded() {\r\n this.state = LOAD_STATE.LOADED;\r\n\r\n if (this.slide && this.element) {\r\n this.instance.dispatch('loadComplete', { slide: this.slide, content: this });\r\n\r\n // if content is reloaded\r\n if (this.slide.isActive\r\n && this.slide.heavyAppended\r\n && !this.element.parentNode) {\r\n this.append();\r\n this.slide.updateContentSize(true);\r\n }\r\n\r\n if (this.state === LOAD_STATE.LOADED || this.state === LOAD_STATE.ERROR) {\r\n this.removePlaceholder();\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * Content load error handler\r\n */\r\n onError() {\r\n this.state = LOAD_STATE.ERROR;\r\n\r\n if (this.slide) {\r\n this.displayError();\r\n this.instance.dispatch('loadComplete', { slide: this.slide, isError: true, content: this });\r\n this.instance.dispatch('loadError', { slide: this.slide, content: this });\r\n }\r\n }\r\n\r\n /**\r\n * @returns {Boolean} If the content is currently loading\r\n */\r\n isLoading() {\r\n return this.instance.applyFilters(\r\n 'isContentLoading',\r\n this.state === LOAD_STATE.LOADING,\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * @returns {Boolean} If the content is in error state\r\n */\r\n isError() {\r\n return this.state === LOAD_STATE.ERROR;\r\n }\r\n\r\n /**\r\n * @returns {boolean} If the content is image\r\n */\r\n isImageContent() {\r\n return this.type === 'image';\r\n }\r\n\r\n /**\r\n * Update content size\r\n *\r\n * @param {Number} width\r\n * @param {Number} height\r\n */\r\n setDisplayedSize(width, height) {\r\n if (!this.element) {\r\n return;\r\n }\r\n\r\n if (this.placeholder) {\r\n this.placeholder.setDisplayedSize(width, height);\r\n }\r\n\r\n if (this.instance.dispatch(\r\n 'contentResize',\r\n { content: this, width, height }).defaultPrevented\r\n ) {\r\n return;\r\n }\r\n\r\n setWidthHeight(this.element, width, height);\r\n\r\n if (this.isImageContent() && !this.isError()) {\r\n const isInitialSizeUpdate = (!this.displayedImageWidth && width);\r\n\r\n this.displayedImageWidth = width;\r\n this.displayedImageHeight = height;\r\n\r\n if (isInitialSizeUpdate) {\r\n this.loadImage(false);\r\n } else {\r\n this.updateSrcsetSizes();\r\n }\r\n\r\n if (this.slide) {\r\n this.instance.dispatch(\r\n 'imageSizeChange',\r\n { slide: this.slide, width, height, content: this }\r\n );\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * @returns {boolean} If the content can be zoomed\r\n */\r\n isZoomable() {\r\n return this.instance.applyFilters(\r\n 'isContentZoomable',\r\n this.isImageContent() && (this.state !== LOAD_STATE.ERROR),\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * Update image srcset sizes attribute based on width and height\r\n */\r\n updateSrcsetSizes() {\r\n // Handle srcset sizes attribute.\r\n //\r\n // Never lower quality, if it was increased previously.\r\n // Chrome does this automatically, Firefox and Safari do not,\r\n // so we store largest used size in dataset.\r\n if (!this.isImageContent() || !this.element || !this.data.srcset) {\r\n return;\r\n }\r\n\r\n const image = /** @type HTMLImageElement */ (this.element);\r\n const sizesWidth = this.instance.applyFilters(\r\n 'srcsetSizesWidth',\r\n this.displayedImageWidth,\r\n this\r\n );\r\n\r\n if (\r\n !image.dataset.largestUsedSize\r\n || sizesWidth > parseInt(image.dataset.largestUsedSize, 10)\r\n ) {\r\n image.sizes = sizesWidth + 'px';\r\n image.dataset.largestUsedSize = String(sizesWidth);\r\n }\r\n }\r\n\r\n /**\r\n * @returns {boolean} If content should use a placeholder (from msrc by default)\r\n */\r\n usePlaceholder() {\r\n return this.instance.applyFilters(\r\n 'useContentPlaceholder',\r\n this.isImageContent(),\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * Preload content with lazy-loading param\r\n */\r\n lazyLoad() {\r\n if (this.instance.dispatch('contentLazyLoad', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n this.load(true);\r\n }\r\n\r\n /**\r\n * @returns {boolean} If placeholder should be kept after content is loaded\r\n */\r\n keepPlaceholder() {\r\n return this.instance.applyFilters(\r\n 'isKeepingPlaceholder',\r\n this.isLoading(),\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * Destroy the content\r\n */\r\n destroy() {\r\n this.hasSlide = false;\r\n this.slide = undefined;\r\n\r\n if (this.instance.dispatch('contentDestroy', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n this.remove();\r\n\r\n if (this.placeholder) {\r\n this.placeholder.destroy();\r\n this.placeholder = undefined;\r\n }\r\n\r\n if (this.isImageContent() && this.element) {\r\n this.element.onload = null;\r\n this.element.onerror = null;\r\n this.element = undefined;\r\n }\r\n }\r\n\r\n /**\r\n * Display error message\r\n */\r\n displayError() {\r\n if (this.slide) {\r\n let errorMsgEl = createElement('pswp__error-msg', 'div');\r\n errorMsgEl.innerText = this.instance.options?.errorMsg ?? '';\r\n errorMsgEl = /** @type {HTMLDivElement} */ (this.instance.applyFilters(\r\n 'contentErrorElement',\r\n errorMsgEl,\r\n this\r\n ));\r\n this.element = createElement('pswp__content pswp__error-msg-container', 'div');\r\n this.element.appendChild(errorMsgEl);\r\n this.slide.container.innerText = '';\r\n this.slide.container.appendChild(this.element);\r\n this.slide.updateContentSize(true);\r\n this.removePlaceholder();\r\n }\r\n }\r\n\r\n /**\r\n * Append the content\r\n */\r\n append() {\r\n if (this.isAttached || !this.element) {\r\n return;\r\n }\r\n\r\n this.isAttached = true;\r\n\r\n if (this.state === LOAD_STATE.ERROR) {\r\n this.displayError();\r\n return;\r\n }\r\n\r\n if (this.instance.dispatch('contentAppend', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n const supportsDecode = ('decode' in this.element);\r\n\r\n if (this.isImageContent()) {\r\n // Use decode() on nearby slides\r\n //\r\n // Nearby slide images are in DOM and not hidden via display:none.\r\n // However, they are placed offscreen (to the left and right side).\r\n //\r\n // Some browsers do not composite the image until it's actually visible,\r\n // using decode() helps.\r\n //\r\n // You might ask \"why dont you just decode() and then append all images\",\r\n // that's because I want to show image before it's fully loaded,\r\n // as browser can render parts of image while it is loading.\r\n // We do not do this in Safari due to partial loading bug.\r\n if (supportsDecode && this.slide && (!this.slide.isActive || isSafari())) {\r\n this.isDecoding = true;\r\n // purposefully using finally instead of then,\r\n // as if srcset sizes changes dynamically - it may cause decode error\r\n /** @type {HTMLImageElement} */\r\n (this.element).decode().catch(() => {}).finally(() => {\r\n this.isDecoding = false;\r\n this.appendImage();\r\n });\r\n } else {\r\n this.appendImage();\r\n }\r\n } else if (this.slide && !this.element.parentNode) {\r\n this.slide.container.appendChild(this.element);\r\n }\r\n }\r\n\r\n /**\r\n * Activate the slide,\r\n * active slide is generally the current one,\r\n * meaning the user can see it.\r\n */\r\n activate() {\r\n if (this.instance.dispatch('contentActivate', { content: this }).defaultPrevented\r\n || !this.slide) {\r\n return;\r\n }\r\n\r\n if (this.isImageContent() && this.isDecoding && !isSafari()) {\r\n // add image to slide when it becomes active,\r\n // even if it's not finished decoding\r\n this.appendImage();\r\n } else if (this.isError()) {\r\n this.load(false, true); // try to reload\r\n }\r\n\r\n if (this.slide.holderElement) {\r\n this.slide.holderElement.setAttribute('aria-hidden', 'false');\r\n }\r\n }\r\n\r\n /**\r\n * Deactivate the content\r\n */\r\n deactivate() {\r\n this.instance.dispatch('contentDeactivate', { content: this });\r\n if (this.slide && this.slide.holderElement) {\r\n this.slide.holderElement.setAttribute('aria-hidden', 'true');\r\n }\r\n }\r\n\r\n\r\n /**\r\n * Remove the content from DOM\r\n */\r\n remove() {\r\n this.isAttached = false;\r\n\r\n if (this.instance.dispatch('contentRemove', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (this.element && this.element.parentNode) {\r\n this.element.remove();\r\n }\r\n\r\n if (this.placeholder && this.placeholder.element) {\r\n this.placeholder.element.remove();\r\n }\r\n }\r\n\r\n /**\r\n * Append the image content to slide container\r\n */\r\n appendImage() {\r\n if (!this.isAttached) {\r\n return;\r\n }\r\n\r\n if (this.instance.dispatch('contentAppendImage', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n // ensure that element exists and is not already appended\r\n if (this.slide && this.element && !this.element.parentNode) {\r\n this.slide.container.appendChild(this.element);\r\n }\r\n\r\n if (this.state === LOAD_STATE.LOADED || this.state === LOAD_STATE.ERROR) {\r\n this.removePlaceholder();\r\n }\r\n }\r\n}\r\n\r\nexport default Content;\r\n","import { getViewportSize, getPanAreaSize } from '../util/viewport-size.js';\r\nimport ZoomLevel from './zoom-level.js';\r\n\r\n/** @typedef {import('./content.js').default} Content */\r\n/** @typedef {import('./slide.js').default} Slide */\r\n/** @typedef {import('./slide.js').SlideData} SlideData */\r\n/** @typedef {import('../core/base.js').default} PhotoSwipeBase */\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n\r\nconst MIN_SLIDES_TO_CACHE = 5;\r\n\r\n/**\r\n * Lazy-load an image\r\n * This function is used both by Lightbox and PhotoSwipe core,\r\n * thus it can be called before dialog is opened.\r\n *\r\n * @param {SlideData} itemData Data about the slide\r\n * @param {PhotoSwipeBase} instance PhotoSwipe or PhotoSwipeLightbox instance\r\n * @param {number} index\r\n * @returns {Content} Image that is being decoded or false.\r\n */\r\nexport function lazyLoadData(itemData, instance, index) {\r\n const content = instance.createContentFromData(itemData, index);\r\n /** @type {ZoomLevel | undefined} */\r\n let zoomLevel;\r\n\r\n const { options } = instance;\r\n\r\n // We need to know dimensions of the image to preload it,\r\n // as it might use srcset, and we need to define sizes\r\n if (options) {\r\n zoomLevel = new ZoomLevel(options, itemData, -1);\r\n\r\n let viewportSize;\r\n if (instance.pswp) {\r\n viewportSize = instance.pswp.viewportSize;\r\n } else {\r\n viewportSize = getViewportSize(options, instance);\r\n }\r\n\r\n const panAreaSize = getPanAreaSize(options, viewportSize, itemData, index);\r\n zoomLevel.update(content.width, content.height, panAreaSize);\r\n }\r\n\r\n content.lazyLoad();\r\n\r\n if (zoomLevel) {\r\n content.setDisplayedSize(\r\n Math.ceil(content.width * zoomLevel.initial),\r\n Math.ceil(content.height * zoomLevel.initial)\r\n );\r\n }\r\n\r\n return content;\r\n}\r\n\r\n\r\n/**\r\n * Lazy-loads specific slide.\r\n * This function is used both by Lightbox and PhotoSwipe core,\r\n * thus it can be called before dialog is opened.\r\n *\r\n * By default, it loads image based on viewport size and initial zoom level.\r\n *\r\n * @param {number} index Slide index\r\n * @param {PhotoSwipeBase} instance PhotoSwipe or PhotoSwipeLightbox eventable instance\r\n * @returns {Content | undefined}\r\n */\r\nexport function lazyLoadSlide(index, instance) {\r\n const itemData = instance.getItemData(index);\r\n\r\n if (instance.dispatch('lazyLoadSlide', { index, itemData }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n return lazyLoadData(itemData, instance, index);\r\n}\r\n\r\nclass ContentLoader {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n // Total amount of cached images\r\n this.limit = Math.max(\r\n pswp.options.preload[0] + pswp.options.preload[1] + 1,\r\n MIN_SLIDES_TO_CACHE\r\n );\r\n /** @type {Content[]} */\r\n this._cachedItems = [];\r\n }\r\n\r\n /**\r\n * Lazy load nearby slides based on `preload` option.\r\n *\r\n * @param {number} [diff] Difference between slide indexes that was changed recently, or 0.\r\n */\r\n updateLazy(diff) {\r\n const { pswp } = this;\r\n\r\n if (pswp.dispatch('lazyLoad').defaultPrevented) {\r\n return;\r\n }\r\n\r\n const { preload } = pswp.options;\r\n const isForward = diff === undefined ? true : (diff >= 0);\r\n let i;\r\n\r\n // preload[1] - num items to preload in forward direction\r\n for (i = 0; i <= preload[1]; i++) {\r\n this.loadSlideByIndex(pswp.currIndex + (isForward ? i : (-i)));\r\n }\r\n\r\n // preload[0] - num items to preload in backward direction\r\n for (i = 1; i <= preload[0]; i++) {\r\n this.loadSlideByIndex(pswp.currIndex + (isForward ? (-i) : i));\r\n }\r\n }\r\n\r\n /**\r\n * @param {number} initialIndex\r\n */\r\n loadSlideByIndex(initialIndex) {\r\n const index = this.pswp.getLoopedIndex(initialIndex);\r\n // try to get cached content\r\n let content = this.getContentByIndex(index);\r\n if (!content) {\r\n // no cached content, so try to load from scratch:\r\n content = lazyLoadSlide(index, this.pswp);\r\n // if content can be loaded, add it to cache:\r\n if (content) {\r\n this.addToCache(content);\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * @param {Slide} slide\r\n * @returns {Content}\r\n */\r\n getContentBySlide(slide) {\r\n let content = this.getContentByIndex(slide.index);\r\n if (!content) {\r\n // create content if not found in cache\r\n content = this.pswp.createContentFromData(slide.data, slide.index);\r\n this.addToCache(content);\r\n }\r\n\r\n // assign slide to content\r\n content.setSlide(slide);\r\n\r\n return content;\r\n }\r\n\r\n /**\r\n * @param {Content} content\r\n */\r\n addToCache(content) {\r\n // move to the end of array\r\n this.removeByIndex(content.index);\r\n this._cachedItems.push(content);\r\n\r\n if (this._cachedItems.length > this.limit) {\r\n // Destroy the first content that's not attached\r\n const indexToRemove = this._cachedItems.findIndex((item) => {\r\n return !item.isAttached && !item.hasSlide;\r\n });\r\n if (indexToRemove !== -1) {\r\n const removedItem = this._cachedItems.splice(indexToRemove, 1)[0];\r\n removedItem.destroy();\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * Removes an image from cache, does not destroy() it, just removes.\r\n *\r\n * @param {number} index\r\n */\r\n removeByIndex(index) {\r\n const indexToRemove = this._cachedItems.findIndex(item => item.index === index);\r\n if (indexToRemove !== -1) {\r\n this._cachedItems.splice(indexToRemove, 1);\r\n }\r\n }\r\n\r\n /**\r\n * @param {number} index\r\n * @returns {Content | undefined}\r\n */\r\n getContentByIndex(index) {\r\n return this._cachedItems.find(content => content.index === index);\r\n }\r\n\r\n destroy() {\r\n this._cachedItems.forEach(content => content.destroy());\r\n this._cachedItems = [];\r\n }\r\n}\r\n\r\nexport default ContentLoader;\r\n","import Eventable from './eventable.js';\r\nimport { getElementsFromOption } from '../util/util.js';\r\nimport Content from '../slide/content.js';\r\nimport { lazyLoadData } from '../slide/loader.js';\r\n\r\n/** @typedef {import(\"../photoswipe.js\").default} PhotoSwipe */\r\n/** @typedef {import(\"../slide/slide.js\").SlideData} SlideData */\r\n\r\n/**\r\n * PhotoSwipe base class that can retrieve data about every slide.\r\n * Shared by PhotoSwipe Core and PhotoSwipe Lightbox\r\n */\r\nclass PhotoSwipeBase extends Eventable {\r\n /**\r\n * Get total number of slides\r\n *\r\n * @returns {number}\r\n */\r\n getNumItems() {\r\n let numItems = 0;\r\n const dataSource = this.options?.dataSource;\r\n\r\n if (dataSource && 'length' in dataSource) {\r\n // may be an array or just object with length property\r\n numItems = dataSource.length;\r\n } else if (dataSource && 'gallery' in dataSource) {\r\n // query DOM elements\r\n if (!dataSource.items) {\r\n dataSource.items = this._getGalleryDOMElements(dataSource.gallery);\r\n }\r\n\r\n if (dataSource.items) {\r\n numItems = dataSource.items.length;\r\n }\r\n }\r\n\r\n // legacy event, before filters were introduced\r\n const event = this.dispatch('numItems', {\r\n dataSource,\r\n numItems\r\n });\r\n return this.applyFilters('numItems', event.numItems, dataSource);\r\n }\r\n\r\n /**\r\n * @param {SlideData} slideData\r\n * @param {number} index\r\n * @returns {Content}\r\n */\r\n createContentFromData(slideData, index) {\r\n return new Content(slideData, this, index);\r\n }\r\n\r\n /**\r\n * Get item data by index.\r\n *\r\n * \"item data\" should contain normalized information that PhotoSwipe needs to generate a slide.\r\n * For example, it may contain properties like\r\n * `src`, `srcset`, `w`, `h`, which will be used to generate a slide with image.\r\n *\r\n * @param {number} index\r\n * @returns {SlideData}\r\n */\r\n getItemData(index) {\r\n const dataSource = this.options?.dataSource;\r\n /** @type {SlideData | HTMLElement} */\r\n let dataSourceItem = {};\r\n if (Array.isArray(dataSource)) {\r\n // Datasource is an array of elements\r\n dataSourceItem = dataSource[index];\r\n } else if (dataSource && 'gallery' in dataSource) {\r\n // dataSource has gallery property,\r\n // thus it was created by Lightbox, based on\r\n // gallery and children options\r\n\r\n // query DOM elements\r\n if (!dataSource.items) {\r\n dataSource.items = this._getGalleryDOMElements(dataSource.gallery);\r\n }\r\n\r\n dataSourceItem = dataSource.items[index];\r\n }\r\n\r\n let itemData = dataSourceItem;\r\n\r\n if (itemData instanceof Element) {\r\n itemData = this._domElementToItemData(itemData);\r\n }\r\n\r\n // Dispatching the itemData event,\r\n // it's a legacy verion before filters were introduced\r\n const event = this.dispatch('itemData', {\r\n itemData: itemData || {},\r\n index\r\n });\r\n\r\n return this.applyFilters('itemData', event.itemData, index);\r\n }\r\n\r\n /**\r\n * Get array of gallery DOM elements,\r\n * based on childSelector and gallery element.\r\n *\r\n * @param {HTMLElement} galleryElement\r\n * @returns {HTMLElement[]}\r\n */\r\n _getGalleryDOMElements(galleryElement) {\r\n if (this.options?.children || this.options?.childSelector) {\r\n return getElementsFromOption(\r\n this.options.children,\r\n this.options.childSelector,\r\n galleryElement\r\n ) || [];\r\n }\r\n\r\n return [galleryElement];\r\n }\r\n\r\n /**\r\n * Converts DOM element to item data object.\r\n *\r\n * @param {HTMLElement} element DOM element\r\n * @returns {SlideData}\r\n */\r\n _domElementToItemData(element) {\r\n /** @type {SlideData} */\r\n const itemData = {\r\n element\r\n };\r\n\r\n const linkEl = /** @type {HTMLAnchorElement} */ (\r\n element.tagName === 'A'\r\n ? element\r\n : element.querySelector('a')\r\n );\r\n\r\n if (linkEl) {\r\n // src comes from data-pswp-src attribute,\r\n // if it's empty link href is used\r\n itemData.src = linkEl.dataset.pswpSrc || linkEl.href;\r\n\r\n if (linkEl.dataset.pswpSrcset) {\r\n itemData.srcset = linkEl.dataset.pswpSrcset;\r\n }\r\n\r\n itemData.width = linkEl.dataset.pswpWidth ? parseInt(linkEl.dataset.pswpWidth, 10) : 0;\r\n itemData.height = linkEl.dataset.pswpHeight ? parseInt(linkEl.dataset.pswpHeight, 10) : 0;\r\n\r\n // support legacy w & h properties\r\n itemData.w = itemData.width;\r\n itemData.h = itemData.height;\r\n\r\n if (linkEl.dataset.pswpType) {\r\n itemData.type = linkEl.dataset.pswpType;\r\n }\r\n\r\n const thumbnailEl = element.querySelector('img');\r\n\r\n if (thumbnailEl) {\r\n // msrc is URL to placeholder image that's displayed before large image is loaded\r\n // by default it's displayed only for the first slide\r\n itemData.msrc = thumbnailEl.currentSrc || thumbnailEl.src;\r\n itemData.alt = thumbnailEl.getAttribute('alt') ?? '';\r\n }\r\n\r\n if (linkEl.dataset.pswpCropped || linkEl.dataset.cropped) {\r\n itemData.thumbCropped = true;\r\n }\r\n }\r\n\r\n return this.applyFilters('domItemData', itemData, element, linkEl);\r\n }\r\n\r\n /**\r\n * Lazy-load by slide data\r\n *\r\n * @param {SlideData} itemData Data about the slide\r\n * @param {number} index\r\n * @returns {Content} Image that is being decoded or false.\r\n */\r\n lazyLoadData(itemData, index) {\r\n return lazyLoadData(itemData, this, index);\r\n }\r\n}\r\n\r\nexport default PhotoSwipeBase;\r\n","import {\r\n setTransform,\r\n equalizePoints,\r\n decodeImage,\r\n toTransformString\r\n} from './util/util.js';\r\n\r\n/** @typedef {import('./photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('./slide/get-thumb-bounds.js').Bounds} Bounds */\r\n/** @typedef {import('./util/animations.js').AnimationProps} AnimationProps */\r\n\r\n// some browsers do not paint\r\n// elements which opacity is set to 0,\r\n// since we need to pre-render elements for the animation -\r\n// we set it to the minimum amount\r\nconst MIN_OPACITY = 0.003;\r\n\r\n/**\r\n * Manages opening and closing transitions of the PhotoSwipe.\r\n *\r\n * It can perform zoom, fade or no transition.\r\n */\r\nclass Opener {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n this.isClosed = true;\r\n this.isOpen = false;\r\n this.isClosing = false;\r\n this.isOpening = false;\r\n /**\r\n * @private\r\n * @type {number | false | undefined}\r\n */\r\n this._duration = undefined;\r\n /** @private */\r\n this._useAnimation = false;\r\n /** @private */\r\n this._croppedZoom = false;\r\n /** @private */\r\n this._animateRootOpacity = false;\r\n /** @private */\r\n this._animateBgOpacity = false;\r\n /**\r\n * @private\r\n * @type { HTMLDivElement | HTMLImageElement | null | undefined }\r\n */\r\n this._placeholder = undefined;\r\n /**\r\n * @private\r\n * @type { HTMLDivElement | undefined }\r\n */\r\n this._opacityElement = undefined;\r\n /**\r\n * @private\r\n * @type { HTMLDivElement | undefined }\r\n */\r\n this._cropContainer1 = undefined;\r\n /**\r\n * @private\r\n * @type { HTMLElement | null | undefined }\r\n */\r\n this._cropContainer2 = undefined;\r\n\r\n /**\r\n * @private\r\n * @type {Bounds | undefined}\r\n */\r\n this._thumbBounds = undefined;\r\n\r\n\r\n this._prepareOpen = this._prepareOpen.bind(this);\r\n\r\n // Override initial zoom and pan position\r\n pswp.on('firstZoomPan', this._prepareOpen);\r\n }\r\n\r\n open() {\r\n this._prepareOpen();\r\n this._start();\r\n }\r\n\r\n close() {\r\n if (this.isClosed || this.isClosing || this.isOpening) {\r\n // if we close during opening animation\r\n // for now do nothing,\r\n // browsers aren't good at changing the direction of the CSS transition\r\n return;\r\n }\r\n\r\n const slide = this.pswp.currSlide;\r\n\r\n this.isOpen = false;\r\n this.isOpening = false;\r\n this.isClosing = true;\r\n this._duration = this.pswp.options.hideAnimationDuration;\r\n\r\n if (slide && slide.currZoomLevel * slide.width >= this.pswp.options.maxWidthToAnimate) {\r\n this._duration = 0;\r\n }\r\n\r\n this._applyStartProps();\r\n setTimeout(() => {\r\n this._start();\r\n }, this._croppedZoom ? 30 : 0);\r\n }\r\n\r\n /** @private */\r\n _prepareOpen() {\r\n this.pswp.off('firstZoomPan', this._prepareOpen);\r\n if (!this.isOpening) {\r\n const slide = this.pswp.currSlide;\r\n this.isOpening = true;\r\n this.isClosing = false;\r\n this._duration = this.pswp.options.showAnimationDuration;\r\n if (slide && slide.zoomLevels.initial * slide.width >= this.pswp.options.maxWidthToAnimate) {\r\n this._duration = 0;\r\n }\r\n this._applyStartProps();\r\n }\r\n }\r\n\r\n /** @private */\r\n _applyStartProps() {\r\n const { pswp } = this;\r\n const slide = this.pswp.currSlide;\r\n const { options } = pswp;\r\n\r\n if (options.showHideAnimationType === 'fade') {\r\n options.showHideOpacity = true;\r\n this._thumbBounds = undefined;\r\n } else if (options.showHideAnimationType === 'none') {\r\n options.showHideOpacity = false;\r\n this._duration = 0;\r\n this._thumbBounds = undefined;\r\n } else if (this.isOpening && pswp._initialThumbBounds) {\r\n // Use initial bounds if defined\r\n this._thumbBounds = pswp._initialThumbBounds;\r\n } else {\r\n this._thumbBounds = this.pswp.getThumbBounds();\r\n }\r\n\r\n this._placeholder = slide?.getPlaceholderElement();\r\n\r\n pswp.animations.stopAll();\r\n\r\n // Discard animations when duration is less than 50ms\r\n this._useAnimation = Boolean(this._duration && this._duration > 50);\r\n this._animateZoom = Boolean(this._thumbBounds)\r\n && slide?.content.usePlaceholder()\r\n && (!this.isClosing || !pswp.mainScroll.isShifted());\r\n if (!this._animateZoom) {\r\n this._animateRootOpacity = true;\r\n\r\n if (this.isOpening && slide) {\r\n slide.zoomAndPanToInitial();\r\n slide.applyCurrentZoomPan();\r\n }\r\n } else {\r\n this._animateRootOpacity = options.showHideOpacity ?? false;\r\n }\r\n this._animateBgOpacity = !this._animateRootOpacity && this.pswp.options.bgOpacity > MIN_OPACITY;\r\n this._opacityElement = this._animateRootOpacity ? pswp.element : pswp.bg;\r\n\r\n if (!this._useAnimation) {\r\n this._duration = 0;\r\n this._animateZoom = false;\r\n this._animateBgOpacity = false;\r\n this._animateRootOpacity = true;\r\n if (this.isOpening) {\r\n if (pswp.element) {\r\n pswp.element.style.opacity = String(MIN_OPACITY);\r\n }\r\n pswp.applyBgOpacity(1);\r\n }\r\n return;\r\n }\r\n\r\n if (this._animateZoom && this._thumbBounds && this._thumbBounds.innerRect) {\r\n // Properties are used when animation from cropped thumbnail\r\n this._croppedZoom = true;\r\n this._cropContainer1 = this.pswp.container;\r\n this._cropContainer2 = this.pswp.currSlide?.holderElement;\r\n\r\n if (pswp.container) {\r\n pswp.container.style.overflow = 'hidden';\r\n pswp.container.style.width = pswp.viewportSize.x + 'px';\r\n }\r\n } else {\r\n this._croppedZoom = false;\r\n }\r\n\r\n if (this.isOpening) {\r\n // Apply styles before opening transition\r\n if (this._animateRootOpacity) {\r\n if (pswp.element) {\r\n pswp.element.style.opacity = String(MIN_OPACITY);\r\n }\r\n pswp.applyBgOpacity(1);\r\n } else {\r\n if (this._animateBgOpacity && pswp.bg) {\r\n pswp.bg.style.opacity = String(MIN_OPACITY);\r\n }\r\n if (pswp.element) {\r\n pswp.element.style.opacity = '1';\r\n }\r\n }\r\n\r\n if (this._animateZoom) {\r\n this._setClosedStateZoomPan();\r\n if (this._placeholder) {\r\n // tell browser that we plan to animate the placeholder\r\n this._placeholder.style.willChange = 'transform';\r\n\r\n // hide placeholder to allow hiding of\r\n // elements that overlap it (such as icons over the thumbnail)\r\n this._placeholder.style.opacity = String(MIN_OPACITY);\r\n }\r\n }\r\n } else if (this.isClosing) {\r\n // hide nearby slides to make sure that\r\n // they are not painted during the transition\r\n if (pswp.mainScroll.itemHolders[0]) {\r\n pswp.mainScroll.itemHolders[0].el.style.display = 'none';\r\n }\r\n if (pswp.mainScroll.itemHolders[2]) {\r\n pswp.mainScroll.itemHolders[2].el.style.display = 'none';\r\n }\r\n\r\n if (this._croppedZoom) {\r\n if (pswp.mainScroll.x !== 0) {\r\n // shift the main scroller to zero position\r\n pswp.mainScroll.resetPosition();\r\n pswp.mainScroll.resize();\r\n }\r\n }\r\n }\r\n }\r\n\r\n /** @private */\r\n _start() {\r\n if (this.isOpening\r\n && this._useAnimation\r\n && this._placeholder\r\n && this._placeholder.tagName === 'IMG') {\r\n // To ensure smooth animation\r\n // we wait till the current slide image placeholder is decoded,\r\n // but no longer than 250ms,\r\n // and no shorter than 50ms\r\n // (just using requestanimationframe is not enough in Firefox,\r\n // for some reason)\r\n new Promise((resolve) => {\r\n let decoded = false;\r\n let isDelaying = true;\r\n decodeImage(/** @type {HTMLImageElement} */ (this._placeholder)).finally(() => {\r\n decoded = true;\r\n if (!isDelaying) {\r\n resolve(true);\r\n }\r\n });\r\n setTimeout(() => {\r\n isDelaying = false;\r\n if (decoded) {\r\n resolve(true);\r\n }\r\n }, 50);\r\n setTimeout(resolve, 250);\r\n }).finally(() => this._initiate());\r\n } else {\r\n this._initiate();\r\n }\r\n }\r\n\r\n /** @private */\r\n _initiate() {\r\n this.pswp.element?.style.setProperty('--pswp-transition-duration', this._duration + 'ms');\r\n\r\n this.pswp.dispatch(\r\n this.isOpening ? 'openingAnimationStart' : 'closingAnimationStart'\r\n );\r\n\r\n // legacy event\r\n this.pswp.dispatch(\r\n /** @type {'initialZoomIn' | 'initialZoomOut'} */\r\n ('initialZoom' + (this.isOpening ? 'In' : 'Out'))\r\n );\r\n\r\n this.pswp.element?.classList.toggle('pswp--ui-visible', this.isOpening);\r\n\r\n if (this.isOpening) {\r\n if (this._placeholder) {\r\n // unhide the placeholder\r\n this._placeholder.style.opacity = '1';\r\n }\r\n this._animateToOpenState();\r\n } else if (this.isClosing) {\r\n this._animateToClosedState();\r\n }\r\n\r\n if (!this._useAnimation) {\r\n this._onAnimationComplete();\r\n }\r\n }\r\n\r\n /** @private */\r\n _onAnimationComplete() {\r\n const { pswp } = this;\r\n this.isOpen = this.isOpening;\r\n this.isClosed = this.isClosing;\r\n this.isOpening = false;\r\n this.isClosing = false;\r\n\r\n pswp.dispatch(\r\n this.isOpen ? 'openingAnimationEnd' : 'closingAnimationEnd'\r\n );\r\n\r\n // legacy event\r\n pswp.dispatch(\r\n /** @type {'initialZoomInEnd' | 'initialZoomOutEnd'} */\r\n ('initialZoom' + (this.isOpen ? 'InEnd' : 'OutEnd'))\r\n );\r\n\r\n if (this.isClosed) {\r\n pswp.destroy();\r\n } else if (this.isOpen) {\r\n if (this._animateZoom && pswp.container) {\r\n pswp.container.style.overflow = 'visible';\r\n pswp.container.style.width = '100%';\r\n }\r\n pswp.currSlide?.applyCurrentZoomPan();\r\n }\r\n }\r\n\r\n /** @private */\r\n _animateToOpenState() {\r\n const { pswp } = this;\r\n if (this._animateZoom) {\r\n if (this._croppedZoom && this._cropContainer1 && this._cropContainer2) {\r\n this._animateTo(this._cropContainer1, 'transform', 'translate3d(0,0,0)');\r\n this._animateTo(this._cropContainer2, 'transform', 'none');\r\n }\r\n\r\n if (pswp.currSlide) {\r\n pswp.currSlide.zoomAndPanToInitial();\r\n this._animateTo(\r\n pswp.currSlide.container,\r\n 'transform',\r\n pswp.currSlide.getCurrentTransform()\r\n );\r\n }\r\n }\r\n\r\n if (this._animateBgOpacity && pswp.bg) {\r\n this._animateTo(pswp.bg, 'opacity', String(pswp.options.bgOpacity));\r\n }\r\n\r\n if (this._animateRootOpacity && pswp.element) {\r\n this._animateTo(pswp.element, 'opacity', '1');\r\n }\r\n }\r\n\r\n /** @private */\r\n _animateToClosedState() {\r\n const { pswp } = this;\r\n\r\n if (this._animateZoom) {\r\n this._setClosedStateZoomPan(true);\r\n }\r\n\r\n // do not animate opacity if it's already at 0\r\n if (this._animateBgOpacity && pswp.bgOpacity > 0.01 && pswp.bg) {\r\n this._animateTo(pswp.bg, 'opacity', '0');\r\n }\r\n\r\n if (this._animateRootOpacity && pswp.element) {\r\n this._animateTo(pswp.element, 'opacity', '0');\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {boolean} [animate]\r\n */\r\n _setClosedStateZoomPan(animate) {\r\n if (!this._thumbBounds) return;\r\n\r\n const { pswp } = this;\r\n const { innerRect } = this._thumbBounds;\r\n const { currSlide, viewportSize } = pswp;\r\n\r\n if (this._croppedZoom && innerRect && this._cropContainer1 && this._cropContainer2) {\r\n const containerOnePanX = -viewportSize.x + (this._thumbBounds.x - innerRect.x) + innerRect.w;\r\n const containerOnePanY = -viewportSize.y + (this._thumbBounds.y - innerRect.y) + innerRect.h;\r\n const containerTwoPanX = viewportSize.x - innerRect.w;\r\n const containerTwoPanY = viewportSize.y - innerRect.h;\r\n\r\n\r\n if (animate) {\r\n this._animateTo(\r\n this._cropContainer1,\r\n 'transform',\r\n toTransformString(containerOnePanX, containerOnePanY)\r\n );\r\n\r\n this._animateTo(\r\n this._cropContainer2,\r\n 'transform',\r\n toTransformString(containerTwoPanX, containerTwoPanY)\r\n );\r\n } else {\r\n setTransform(this._cropContainer1, containerOnePanX, containerOnePanY);\r\n setTransform(this._cropContainer2, containerTwoPanX, containerTwoPanY);\r\n }\r\n }\r\n\r\n if (currSlide) {\r\n equalizePoints(currSlide.pan, innerRect || this._thumbBounds);\r\n currSlide.currZoomLevel = this._thumbBounds.w / currSlide.width;\r\n if (animate) {\r\n this._animateTo(currSlide.container, 'transform', currSlide.getCurrentTransform());\r\n } else {\r\n currSlide.applyCurrentZoomPan();\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {HTMLElement} target\r\n * @param {'transform' | 'opacity'} prop\r\n * @param {string} propValue\r\n */\r\n _animateTo(target, prop, propValue) {\r\n if (!this._duration) {\r\n target.style[prop] = propValue;\r\n return;\r\n }\r\n\r\n const { animations } = this.pswp;\r\n /** @type {AnimationProps} */\r\n const animProps = {\r\n duration: this._duration,\r\n easing: this.pswp.options.easing,\r\n onComplete: () => {\r\n if (!animations.activeAnimations.length) {\r\n this._onAnimationComplete();\r\n }\r\n },\r\n target,\r\n };\r\n animProps[prop] = propValue;\r\n animations.startTransition(animProps);\r\n }\r\n}\r\n\r\nexport default Opener;\r\n","import {\r\n createElement,\r\n equalizePoints,\r\n pointsEqual,\r\n clamp,\r\n} from './util/util.js';\r\n\r\nimport DOMEvents from './util/dom-events.js';\r\nimport Slide from './slide/slide.js';\r\nimport Gestures from './gestures/gestures.js';\r\nimport MainScroll from './main-scroll.js';\r\n\r\nimport Keyboard from './keyboard.js';\r\nimport Animations from './util/animations.js';\r\nimport ScrollWheel from './scroll-wheel.js';\r\nimport UI from './ui/ui.js';\r\nimport { getViewportSize } from './util/viewport-size.js';\r\nimport { getThumbBounds } from './slide/get-thumb-bounds.js';\r\nimport PhotoSwipeBase from './core/base.js';\r\nimport Opener from './opener.js';\r\nimport ContentLoader from './slide/loader.js';\r\n\r\n/**\r\n * @template T\r\n * @typedef {import('./types.js').Type} Type\r\n */\r\n\r\n/** @typedef {import('./slide/slide.js').SlideData} SlideData */\r\n/** @typedef {import('./slide/zoom-level.js').ZoomLevelOption} ZoomLevelOption */\r\n/** @typedef {import('./ui/ui-element.js').UIElementData} UIElementData */\r\n/** @typedef {import('./main-scroll.js').ItemHolder} ItemHolder */\r\n/** @typedef {import('./core/eventable.js').PhotoSwipeEventsMap} PhotoSwipeEventsMap */\r\n/** @typedef {import('./core/eventable.js').PhotoSwipeFiltersMap} PhotoSwipeFiltersMap */\r\n/** @typedef {import('./slide/get-thumb-bounds').Bounds} Bounds */\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {import('./core/eventable.js').EventCallback} EventCallback\r\n */\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {import('./core/eventable.js').AugmentedEvent} AugmentedEvent\r\n */\r\n\r\n/** @typedef {{ x: number; y: number; id?: string | number }} Point */\r\n/** @typedef {{ top: number; bottom: number; left: number; right: number }} Padding */\r\n/** @typedef {SlideData[]} DataSourceArray */\r\n/** @typedef {{ gallery: HTMLElement; items?: HTMLElement[] }} DataSourceObject */\r\n/** @typedef {DataSourceArray | DataSourceObject} DataSource */\r\n/** @typedef {(point: Point, originalEvent: PointerEvent) => void} ActionFn */\r\n/** @typedef {'close' | 'next' | 'zoom' | 'zoom-or-close' | 'toggle-controls'} ActionType */\r\n/** @typedef {Type | { default: Type }} PhotoSwipeModule */\r\n/** @typedef {PhotoSwipeModule | Promise | (() => Promise)} PhotoSwipeModuleOption */\r\n\r\n/**\r\n * @typedef {string | NodeListOf | HTMLElement[] | HTMLElement} ElementProvider\r\n */\r\n\r\n/** @typedef {Partial} PhotoSwipeOptions https://photoswipe.com/options/ */\r\n/**\r\n * @typedef {Object} PreparedPhotoSwipeOptions\r\n *\r\n * @prop {DataSource} [dataSource]\r\n * Pass an array of any items via dataSource option. Its length will determine amount of slides\r\n * (which may be modified further from numItems event).\r\n *\r\n * Each item should contain data that you need to generate slide\r\n * (for image slide it would be src (image URL), width (image width), height, srcset, alt).\r\n *\r\n * If these properties are not present in your initial array, you may \"pre-parse\" each item from itemData filter.\r\n *\r\n * @prop {number} bgOpacity\r\n * Background backdrop opacity, always define it via this option and not via CSS rgba color.\r\n *\r\n * @prop {number} spacing\r\n * Spacing between slides. Defined as ratio relative to the viewport width (0.1 = 10% of viewport).\r\n *\r\n * @prop {boolean} allowPanToNext\r\n * Allow swipe navigation to the next slide when the current slide is zoomed. Does not apply to mouse events.\r\n *\r\n * @prop {boolean} loop\r\n * If set to true you'll be able to swipe from the last to the first image.\r\n * Option is always false when there are less than 3 slides.\r\n *\r\n * @prop {boolean} [wheelToZoom]\r\n * By default PhotoSwipe zooms image with ctrl-wheel, if you enable this option - image will zoom just via wheel.\r\n *\r\n * @prop {boolean} pinchToClose\r\n * Pinch touch gesture to close the gallery.\r\n *\r\n * @prop {boolean} closeOnVerticalDrag\r\n * Vertical drag gesture to close the PhotoSwipe.\r\n *\r\n * @prop {Padding} [padding]\r\n * Slide area padding (in pixels).\r\n *\r\n * @prop {(viewportSize: Point, itemData: SlideData, index: number) => Padding} [paddingFn]\r\n * The option is checked frequently, so make sure it's performant. Overrides padding option if defined. For example:\r\n *\r\n * @prop {number | false} hideAnimationDuration\r\n * Transition duration in milliseconds, can be 0.\r\n *\r\n * @prop {number | false} showAnimationDuration\r\n * Transition duration in milliseconds, can be 0.\r\n *\r\n * @prop {number | false} zoomAnimationDuration\r\n * Transition duration in milliseconds, can be 0.\r\n *\r\n * @prop {string} easing\r\n * String, 'cubic-bezier(.4,0,.22,1)'. CSS easing function for open/close/zoom transitions.\r\n *\r\n * @prop {boolean} escKey\r\n * Esc key to close.\r\n *\r\n * @prop {boolean} arrowKeys\r\n * Left/right arrow keys for navigation.\r\n *\r\n * @prop {boolean} trapFocus\r\n * Trap focus within PhotoSwipe element while it's open.\r\n *\r\n * @prop {boolean} returnFocus\r\n * Restore focus the last active element after PhotoSwipe is closed.\r\n *\r\n * @prop {boolean} clickToCloseNonZoomable\r\n * If image is not zoomable (for example, smaller than viewport) it can be closed by clicking on it.\r\n *\r\n * @prop {ActionType | ActionFn | false} imageClickAction\r\n * Refer to click and tap actions page.\r\n *\r\n * @prop {ActionType | ActionFn | false} bgClickAction\r\n * Refer to click and tap actions page.\r\n *\r\n * @prop {ActionType | ActionFn | false} tapAction\r\n * Refer to click and tap actions page.\r\n *\r\n * @prop {ActionType | ActionFn | false} doubleTapAction\r\n * Refer to click and tap actions page.\r\n *\r\n * @prop {number} preloaderDelay\r\n * Delay before the loading indicator will be displayed,\r\n * if image is loaded during it - the indicator will not be displayed at all. Can be zero.\r\n *\r\n * @prop {string} indexIndicatorSep\r\n * Used for slide count indicator (\"1 of 10 \").\r\n *\r\n * @prop {(options: PhotoSwipeOptions, pswp: PhotoSwipeBase) => Point} [getViewportSizeFn]\r\n * A function that should return slide viewport width and height, in format {x: 100, y: 100}.\r\n *\r\n * @prop {string} errorMsg\r\n * Message to display when the image wasn't able to load. If you need to display HTML - use contentErrorElement filter.\r\n *\r\n * @prop {[number, number]} preload\r\n * Lazy loading of nearby slides based on direction of movement. Should be an array with two integers,\r\n * first one - number of items to preload before the current image, second one - after the current image.\r\n * Two nearby images are always loaded.\r\n *\r\n * @prop {string} [mainClass]\r\n * Class that will be added to the root element of PhotoSwipe, may contain multiple separated by space.\r\n * Example on Styling page.\r\n *\r\n * @prop {HTMLElement} [appendToEl]\r\n * Element to which PhotoSwipe dialog will be appended when it opens.\r\n *\r\n * @prop {number} maxWidthToAnimate\r\n * Maximum width of image to animate, if initial rendered image width\r\n * is larger than this value - the opening/closing transition will be automatically disabled.\r\n *\r\n * @prop {string} [closeTitle]\r\n * Translating\r\n *\r\n * @prop {string} [zoomTitle]\r\n * Translating\r\n *\r\n * @prop {string} [arrowPrevTitle]\r\n * Translating\r\n *\r\n * @prop {string} [arrowNextTitle]\r\n * Translating\r\n *\r\n * @prop {'zoom' | 'fade' | 'none'} [showHideAnimationType]\r\n * To adjust opening or closing transition type use lightbox option `showHideAnimationType` (`String`).\r\n * It supports three values - `zoom` (default), `fade` (default if there is no thumbnail) and `none`.\r\n *\r\n * Animations are automatically disabled if user `(prefers-reduced-motion: reduce)`.\r\n *\r\n * @prop {number} index\r\n * Defines start slide index.\r\n *\r\n * @prop {(e: MouseEvent) => number} [getClickedIndexFn]\r\n *\r\n * @prop {boolean} [arrowPrev]\r\n * @prop {boolean} [arrowNext]\r\n * @prop {boolean} [zoom]\r\n * @prop {boolean} [close]\r\n * @prop {boolean} [counter]\r\n *\r\n * @prop {string} [arrowPrevSVG]\r\n * @prop {string} [arrowNextSVG]\r\n * @prop {string} [zoomSVG]\r\n * @prop {string} [closeSVG]\r\n * @prop {string} [counterSVG]\r\n *\r\n * @prop {string} [arrowPrevTitle]\r\n * @prop {string} [arrowNextTitle]\r\n * @prop {string} [zoomTitle]\r\n * @prop {string} [closeTitle]\r\n * @prop {string} [counterTitle]\r\n *\r\n * @prop {ZoomLevelOption} [initialZoomLevel]\r\n * @prop {ZoomLevelOption} [secondaryZoomLevel]\r\n * @prop {ZoomLevelOption} [maxZoomLevel]\r\n *\r\n * @prop {boolean} [mouseMovePan]\r\n * @prop {Point | null} [initialPointerPos]\r\n * @prop {boolean} [showHideOpacity]\r\n *\r\n * @prop {PhotoSwipeModuleOption} [pswpModule]\r\n * @prop {() => Promise} [openPromise]\r\n * @prop {boolean} [preloadFirstSlide]\r\n * @prop {ElementProvider} [gallery]\r\n * @prop {string} [gallerySelector]\r\n * @prop {ElementProvider} [children]\r\n * @prop {string} [childSelector]\r\n * @prop {string | false} [thumbSelector]\r\n */\r\n\r\n/** @type {PreparedPhotoSwipeOptions} */\r\nconst defaultOptions = {\r\n allowPanToNext: true,\r\n spacing: 0.1,\r\n loop: true,\r\n pinchToClose: true,\r\n closeOnVerticalDrag: true,\r\n hideAnimationDuration: 333,\r\n showAnimationDuration: 333,\r\n zoomAnimationDuration: 333,\r\n escKey: true,\r\n arrowKeys: true,\r\n trapFocus: true,\r\n returnFocus: true,\r\n maxWidthToAnimate: 4000,\r\n clickToCloseNonZoomable: true,\r\n imageClickAction: 'zoom-or-close',\r\n bgClickAction: 'close',\r\n tapAction: 'toggle-controls',\r\n doubleTapAction: 'zoom',\r\n indexIndicatorSep: ' / ',\r\n preloaderDelay: 2000,\r\n bgOpacity: 0.8,\r\n\r\n index: 0,\r\n errorMsg: 'The image cannot be loaded',\r\n preload: [1, 2],\r\n easing: 'cubic-bezier(.4,0,.22,1)'\r\n};\r\n\r\n/**\r\n * PhotoSwipe Core\r\n */\r\nclass PhotoSwipe extends PhotoSwipeBase {\r\n /**\r\n * @param {PhotoSwipeOptions} [options]\r\n */\r\n constructor(options) {\r\n super();\r\n\r\n this.options = this._prepareOptions(options || {});\r\n\r\n /**\r\n * offset of viewport relative to document\r\n *\r\n * @type {Point}\r\n */\r\n this.offset = { x: 0, y: 0 };\r\n\r\n /**\r\n * @type {Point}\r\n * @private\r\n */\r\n this._prevViewportSize = { x: 0, y: 0 };\r\n\r\n /**\r\n * Size of scrollable PhotoSwipe viewport\r\n *\r\n * @type {Point}\r\n */\r\n this.viewportSize = { x: 0, y: 0 };\r\n\r\n /**\r\n * background (backdrop) opacity\r\n */\r\n this.bgOpacity = 1;\r\n this.currIndex = 0;\r\n this.potentialIndex = 0;\r\n this.isOpen = false;\r\n this.isDestroying = false;\r\n this.hasMouse = false;\r\n\r\n /**\r\n * @private\r\n * @type {SlideData}\r\n */\r\n this._initialItemData = {};\r\n /** @type {Bounds | undefined} */\r\n this._initialThumbBounds = undefined;\r\n\r\n /** @type {HTMLDivElement | undefined} */\r\n this.topBar = undefined;\r\n /** @type {HTMLDivElement | undefined} */\r\n this.element = undefined;\r\n /** @type {HTMLDivElement | undefined} */\r\n this.template = undefined;\r\n /** @type {HTMLDivElement | undefined} */\r\n this.container = undefined;\r\n /** @type {HTMLElement | undefined} */\r\n this.scrollWrap = undefined;\r\n /** @type {Slide | undefined} */\r\n this.currSlide = undefined;\r\n\r\n this.events = new DOMEvents();\r\n this.animations = new Animations();\r\n this.mainScroll = new MainScroll(this);\r\n this.gestures = new Gestures(this);\r\n this.opener = new Opener(this);\r\n this.keyboard = new Keyboard(this);\r\n this.contentLoader = new ContentLoader(this);\r\n }\r\n\r\n /** @returns {boolean} */\r\n init() {\r\n if (this.isOpen || this.isDestroying) {\r\n return false;\r\n }\r\n\r\n this.isOpen = true;\r\n this.dispatch('init'); // legacy\r\n this.dispatch('beforeOpen');\r\n\r\n this._createMainStructure();\r\n\r\n // add classes to the root element of PhotoSwipe\r\n let rootClasses = 'pswp--open';\r\n if (this.gestures.supportsTouch) {\r\n rootClasses += ' pswp--touch';\r\n }\r\n if (this.options.mainClass) {\r\n rootClasses += ' ' + this.options.mainClass;\r\n }\r\n if (this.element) {\r\n this.element.className += ' ' + rootClasses;\r\n }\r\n\r\n this.currIndex = this.options.index || 0;\r\n this.potentialIndex = this.currIndex;\r\n this.dispatch('firstUpdate'); // starting index can be modified here\r\n\r\n // initialize scroll wheel handler to block the scroll\r\n this.scrollWheel = new ScrollWheel(this);\r\n\r\n // sanitize index\r\n if (Number.isNaN(this.currIndex)\r\n || this.currIndex < 0\r\n || this.currIndex >= this.getNumItems()) {\r\n this.currIndex = 0;\r\n }\r\n\r\n if (!this.gestures.supportsTouch) {\r\n // enable mouse features if no touch support detected\r\n this.mouseDetected();\r\n }\r\n\r\n // causes forced synchronous layout\r\n this.updateSize();\r\n\r\n this.offset.y = window.pageYOffset;\r\n\r\n this._initialItemData = this.getItemData(this.currIndex);\r\n this.dispatch('gettingData', {\r\n index: this.currIndex,\r\n data: this._initialItemData,\r\n slide: undefined\r\n });\r\n\r\n // *Layout* - calculate size and position of elements here\r\n this._initialThumbBounds = this.getThumbBounds();\r\n this.dispatch('initialLayout');\r\n\r\n this.on('openingAnimationEnd', () => {\r\n const { itemHolders } = this.mainScroll;\r\n\r\n // Add content to the previous and next slide\r\n if (itemHolders[0]) {\r\n itemHolders[0].el.style.display = 'block';\r\n this.setContent(itemHolders[0], this.currIndex - 1);\r\n }\r\n if (itemHolders[2]) {\r\n itemHolders[2].el.style.display = 'block';\r\n this.setContent(itemHolders[2], this.currIndex + 1);\r\n }\r\n\r\n this.appendHeavy();\r\n\r\n this.contentLoader.updateLazy();\r\n\r\n this.events.add(window, 'resize', this._handlePageResize.bind(this));\r\n this.events.add(window, 'scroll', this._updatePageScrollOffset.bind(this));\r\n this.dispatch('bindEvents');\r\n });\r\n\r\n // set content for center slide (first time)\r\n if (this.mainScroll.itemHolders[1]) {\r\n this.setContent(this.mainScroll.itemHolders[1], this.currIndex);\r\n }\r\n this.dispatch('change');\r\n\r\n this.opener.open();\r\n\r\n this.dispatch('afterInit');\r\n\r\n return true;\r\n }\r\n\r\n /**\r\n * Get looped slide index\r\n * (for example, -1 will return the last slide)\r\n *\r\n * @param {number} index\r\n * @returns {number}\r\n */\r\n getLoopedIndex(index) {\r\n const numSlides = this.getNumItems();\r\n\r\n if (this.options.loop) {\r\n if (index > numSlides - 1) {\r\n index -= numSlides;\r\n }\r\n\r\n if (index < 0) {\r\n index += numSlides;\r\n }\r\n }\r\n\r\n return clamp(index, 0, numSlides - 1);\r\n }\r\n\r\n appendHeavy() {\r\n this.mainScroll.itemHolders.forEach((itemHolder) => {\r\n itemHolder.slide?.appendHeavy();\r\n });\r\n }\r\n\r\n /**\r\n * Change the slide\r\n * @param {number} index New index\r\n */\r\n goTo(index) {\r\n this.mainScroll.moveIndexBy(\r\n this.getLoopedIndex(index) - this.potentialIndex\r\n );\r\n }\r\n\r\n /**\r\n * Go to the next slide.\r\n */\r\n next() {\r\n this.goTo(this.potentialIndex + 1);\r\n }\r\n\r\n /**\r\n * Go to the previous slide.\r\n */\r\n prev() {\r\n this.goTo(this.potentialIndex - 1);\r\n }\r\n\r\n /**\r\n * @see slide/slide.js zoomTo\r\n *\r\n * @param {Parameters} args\r\n */\r\n zoomTo(...args) {\r\n this.currSlide?.zoomTo(...args);\r\n }\r\n\r\n /**\r\n * @see slide/slide.js toggleZoom\r\n */\r\n toggleZoom() {\r\n this.currSlide?.toggleZoom();\r\n }\r\n\r\n /**\r\n * Close the gallery.\r\n * After closing transition ends - destroy it\r\n */\r\n close() {\r\n if (!this.opener.isOpen || this.isDestroying) {\r\n return;\r\n }\r\n\r\n this.isDestroying = true;\r\n\r\n this.dispatch('close');\r\n\r\n this.events.removeAll();\r\n this.opener.close();\r\n }\r\n\r\n /**\r\n * Destroys the gallery:\r\n * - instantly closes the gallery\r\n * - unbinds events,\r\n * - cleans intervals and timeouts\r\n * - removes elements from DOM\r\n */\r\n destroy() {\r\n if (!this.isDestroying) {\r\n this.options.showHideAnimationType = 'none';\r\n this.close();\r\n return;\r\n }\r\n\r\n this.dispatch('destroy');\r\n\r\n this._listeners = {};\r\n\r\n if (this.scrollWrap) {\r\n this.scrollWrap.ontouchmove = null;\r\n this.scrollWrap.ontouchend = null;\r\n }\r\n\r\n this.element?.remove();\r\n\r\n this.mainScroll.itemHolders.forEach((itemHolder) => {\r\n itemHolder.slide?.destroy();\r\n });\r\n\r\n this.contentLoader.destroy();\r\n this.events.removeAll();\r\n }\r\n\r\n /**\r\n * Refresh/reload content of a slide by its index\r\n *\r\n * @param {number} slideIndex\r\n */\r\n refreshSlideContent(slideIndex) {\r\n this.contentLoader.removeByIndex(slideIndex);\r\n this.mainScroll.itemHolders.forEach((itemHolder, i) => {\r\n let potentialHolderIndex = (this.currSlide?.index ?? 0) - 1 + i;\r\n if (this.canLoop()) {\r\n potentialHolderIndex = this.getLoopedIndex(potentialHolderIndex);\r\n }\r\n if (potentialHolderIndex === slideIndex) {\r\n // set the new slide content\r\n this.setContent(itemHolder, slideIndex, true);\r\n\r\n // activate the new slide if it's current\r\n if (i === 1) {\r\n this.currSlide = itemHolder.slide;\r\n itemHolder.slide?.setIsActive(true);\r\n }\r\n }\r\n });\r\n\r\n this.dispatch('change');\r\n }\r\n\r\n\r\n /**\r\n * Set slide content\r\n *\r\n * @param {ItemHolder} holder mainScroll.itemHolders array item\r\n * @param {number} index Slide index\r\n * @param {boolean} [force] If content should be set even if index wasn't changed\r\n */\r\n setContent(holder, index, force) {\r\n if (this.canLoop()) {\r\n index = this.getLoopedIndex(index);\r\n }\r\n\r\n if (holder.slide) {\r\n if (holder.slide.index === index && !force) {\r\n // exit if holder already contains this slide\r\n // this could be common when just three slides are used\r\n return;\r\n }\r\n\r\n // destroy previous slide\r\n holder.slide.destroy();\r\n holder.slide = undefined;\r\n }\r\n\r\n // exit if no loop and index is out of bounds\r\n if (!this.canLoop() && (index < 0 || index >= this.getNumItems())) {\r\n return;\r\n }\r\n\r\n const itemData = this.getItemData(index);\r\n holder.slide = new Slide(itemData, index, this);\r\n\r\n // set current slide\r\n if (index === this.currIndex) {\r\n this.currSlide = holder.slide;\r\n }\r\n\r\n holder.slide.append(holder.el);\r\n }\r\n\r\n /** @returns {Point} */\r\n getViewportCenterPoint() {\r\n return {\r\n x: this.viewportSize.x / 2,\r\n y: this.viewportSize.y / 2\r\n };\r\n }\r\n\r\n /**\r\n * Update size of all elements.\r\n * Executed on init and on page resize.\r\n *\r\n * @param {boolean} [force] Update size even if size of viewport was not changed.\r\n */\r\n updateSize(force) {\r\n // let item;\r\n // let itemIndex;\r\n\r\n if (this.isDestroying) {\r\n // exit if PhotoSwipe is closed or closing\r\n // (to avoid errors, as resize event might be delayed)\r\n return;\r\n }\r\n\r\n //const newWidth = this.scrollWrap.clientWidth;\r\n //const newHeight = this.scrollWrap.clientHeight;\r\n\r\n const newViewportSize = getViewportSize(this.options, this);\r\n\r\n if (!force && pointsEqual(newViewportSize, this._prevViewportSize)) {\r\n // Exit if dimensions were not changed\r\n return;\r\n }\r\n\r\n //this._prevViewportSize.x = newWidth;\r\n //this._prevViewportSize.y = newHeight;\r\n equalizePoints(this._prevViewportSize, newViewportSize);\r\n\r\n this.dispatch('beforeResize');\r\n\r\n equalizePoints(this.viewportSize, this._prevViewportSize);\r\n\r\n this._updatePageScrollOffset();\r\n\r\n this.dispatch('viewportSize');\r\n\r\n // Resize slides only after opener animation is finished\r\n // and don't re-calculate size on inital size update\r\n this.mainScroll.resize(this.opener.isOpen);\r\n\r\n if (!this.hasMouse && window.matchMedia('(any-hover: hover)').matches) {\r\n this.mouseDetected();\r\n }\r\n\r\n this.dispatch('resize');\r\n }\r\n\r\n /**\r\n * @param {number} opacity\r\n */\r\n applyBgOpacity(opacity) {\r\n this.bgOpacity = Math.max(opacity, 0);\r\n if (this.bg) {\r\n this.bg.style.opacity = String(this.bgOpacity * this.options.bgOpacity);\r\n }\r\n }\r\n\r\n /**\r\n * Whether mouse is detected\r\n */\r\n mouseDetected() {\r\n if (!this.hasMouse) {\r\n this.hasMouse = true;\r\n this.element?.classList.add('pswp--has_mouse');\r\n }\r\n }\r\n\r\n /**\r\n * Page resize event handler\r\n *\r\n * @private\r\n */\r\n _handlePageResize() {\r\n this.updateSize();\r\n\r\n // In iOS webview, if element size depends on document size,\r\n // it'll be measured incorrectly in resize event\r\n //\r\n // https://bugs.webkit.org/show_bug.cgi?id=170595\r\n // https://hackernoon.com/onresize-event-broken-in-mobile-safari-d8469027bf4d\r\n if (/iPhone|iPad|iPod/i.test(window.navigator.userAgent)) {\r\n setTimeout(() => {\r\n this.updateSize();\r\n }, 500);\r\n }\r\n }\r\n\r\n /**\r\n * Page scroll offset is used\r\n * to get correct coordinates\r\n * relative to PhotoSwipe viewport.\r\n *\r\n * @private\r\n */\r\n _updatePageScrollOffset() {\r\n this.setScrollOffset(0, window.pageYOffset);\r\n }\r\n\r\n /**\r\n * @param {number} x\r\n * @param {number} y\r\n */\r\n setScrollOffset(x, y) {\r\n this.offset.x = x;\r\n this.offset.y = y;\r\n this.dispatch('updateScrollOffset');\r\n }\r\n\r\n /**\r\n * Create main HTML structure of PhotoSwipe,\r\n * and add it to DOM\r\n *\r\n * @private\r\n */\r\n _createMainStructure() {\r\n // root DOM element of PhotoSwipe (.pswp)\r\n this.element = createElement('pswp', 'div');\r\n this.element.setAttribute('tabindex', '-1');\r\n this.element.setAttribute('role', 'dialog');\r\n\r\n // template is legacy prop\r\n this.template = this.element;\r\n\r\n // Background is added as a separate element,\r\n // as animating opacity is faster than animating rgba()\r\n this.bg = createElement('pswp__bg', 'div', this.element);\r\n this.scrollWrap = createElement('pswp__scroll-wrap', 'section', this.element);\r\n this.container = createElement('pswp__container', 'div', this.scrollWrap);\r\n\r\n // aria pattern: carousel\r\n this.scrollWrap.setAttribute('aria-roledescription', 'carousel');\r\n this.container.setAttribute('aria-live', 'off');\r\n this.container.setAttribute('id', 'pswp__items');\r\n\r\n this.mainScroll.appendHolders();\r\n\r\n this.ui = new UI(this);\r\n this.ui.init();\r\n\r\n // append to DOM\r\n (this.options.appendToEl || document.body).appendChild(this.element);\r\n }\r\n\r\n\r\n /**\r\n * Get position and dimensions of small thumbnail\r\n * {x:,y:,w:}\r\n *\r\n * Height is optional (calculated based on the large image)\r\n *\r\n * @returns {Bounds | undefined}\r\n */\r\n getThumbBounds() {\r\n return getThumbBounds(\r\n this.currIndex,\r\n this.currSlide ? this.currSlide.data : this._initialItemData,\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * If the PhotoSwipe can have continuous loop\r\n * @returns Boolean\r\n */\r\n canLoop() {\r\n return (this.options.loop && this.getNumItems() > 2);\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {PhotoSwipeOptions} options\r\n * @returns {PreparedPhotoSwipeOptions}\r\n */\r\n _prepareOptions(options) {\r\n if (window.matchMedia('(prefers-reduced-motion), (update: slow)').matches) {\r\n options.showHideAnimationType = 'none';\r\n options.zoomAnimationDuration = 0;\r\n }\r\n\r\n /** @type {PreparedPhotoSwipeOptions} */\r\n return {\r\n ...defaultOptions,\r\n ...options\r\n };\r\n }\r\n}\r\n\r\nexport default PhotoSwipe;\r\n","/** @typedef {import('../photoswipe.js').Point} Point */\r\n\r\n/**\r\n * @template {keyof HTMLElementTagNameMap} T\r\n * @param {string} className\r\n * @param {T} tagName\r\n * @param {Node} [appendToEl]\r\n * @returns {HTMLElementTagNameMap[T]}\r\n */\r\nexport function createElement(className, tagName, appendToEl) {\r\n const el = document.createElement(tagName);\r\n if (className) {\r\n el.className = className;\r\n }\r\n if (appendToEl) {\r\n appendToEl.appendChild(el);\r\n }\r\n return el;\r\n}\r\n\r\n/**\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {Point}\r\n */\r\nexport function equalizePoints(p1, p2) {\r\n p1.x = p2.x;\r\n p1.y = p2.y;\r\n if (p2.id !== undefined) {\r\n p1.id = p2.id;\r\n }\r\n return p1;\r\n}\r\n\r\n/**\r\n * @param {Point} p\r\n */\r\nexport function roundPoint(p) {\r\n p.x = Math.round(p.x);\r\n p.y = Math.round(p.y);\r\n}\r\n\r\n/**\r\n * Returns distance between two points.\r\n *\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {number}\r\n */\r\nexport function getDistanceBetween(p1, p2) {\r\n const x = Math.abs(p1.x - p2.x);\r\n const y = Math.abs(p1.y - p2.y);\r\n return Math.sqrt((x * x) + (y * y));\r\n}\r\n\r\n/**\r\n * Whether X and Y positions of points are equal\r\n *\r\n * @param {Point} p1\r\n * @param {Point} p2\r\n * @returns {boolean}\r\n */\r\nexport function pointsEqual(p1, p2) {\r\n return p1.x === p2.x && p1.y === p2.y;\r\n}\r\n\r\n/**\r\n * The float result between the min and max values.\r\n *\r\n * @param {number} val\r\n * @param {number} min\r\n * @param {number} max\r\n * @returns {number}\r\n */\r\nexport function clamp(val, min, max) {\r\n return Math.min(Math.max(val, min), max);\r\n}\r\n\r\n/**\r\n * Get transform string\r\n *\r\n * @param {number} x\r\n * @param {number} [y]\r\n * @param {number} [scale]\r\n * @returns {string}\r\n */\r\nexport function toTransformString(x, y, scale) {\r\n let propValue = `translate3d(${x}px,${y || 0}px,0)`;\r\n\r\n if (scale !== undefined) {\r\n propValue += ` scale3d(${scale},${scale},1)`;\r\n }\r\n\r\n return propValue;\r\n}\r\n\r\n/**\r\n * Apply transform:translate(x, y) scale(scale) to element\r\n *\r\n * @param {HTMLElement} el\r\n * @param {number} x\r\n * @param {number} [y]\r\n * @param {number} [scale]\r\n */\r\nexport function setTransform(el, x, y, scale) {\r\n el.style.transform = toTransformString(x, y, scale);\r\n}\r\n\r\nconst defaultCSSEasing = 'cubic-bezier(.4,0,.22,1)';\r\n\r\n/**\r\n * Apply CSS transition to element\r\n *\r\n * @param {HTMLElement} el\r\n * @param {string} [prop] CSS property to animate\r\n * @param {number} [duration] in ms\r\n * @param {string} [ease] CSS easing function\r\n */\r\nexport function setTransitionStyle(el, prop, duration, ease) {\r\n // inOut: 'cubic-bezier(.4, 0, .22, 1)', // for \"toggle state\" transitions\r\n // out: 'cubic-bezier(0, 0, .22, 1)', // for \"show\" transitions\r\n // in: 'cubic-bezier(.4, 0, 1, 1)'// for \"hide\" transitions\r\n el.style.transition = prop\r\n ? `${prop} ${duration}ms ${ease || defaultCSSEasing}`\r\n : 'none';\r\n}\r\n\r\n/**\r\n * Apply width and height CSS properties to element\r\n *\r\n * @param {HTMLElement} el\r\n * @param {string | number} w\r\n * @param {string | number} h\r\n */\r\nexport function setWidthHeight(el, w, h) {\r\n el.style.width = (typeof w === 'number') ? `${w}px` : w;\r\n el.style.height = (typeof h === 'number') ? `${h}px` : h;\r\n}\r\n\r\n/**\r\n * @param {HTMLElement} el\r\n */\r\nexport function removeTransitionStyle(el) {\r\n setTransitionStyle(el);\r\n}\r\n\r\n/**\r\n * @param {HTMLImageElement} img\r\n * @returns {Promise}\r\n */\r\nexport function decodeImage(img) {\r\n if ('decode' in img) {\r\n return img.decode().catch(() => {});\r\n }\r\n\r\n if (img.complete) {\r\n return Promise.resolve(img);\r\n }\r\n\r\n return new Promise((resolve, reject) => {\r\n img.onload = () => resolve(img);\r\n img.onerror = reject;\r\n });\r\n}\r\n\r\n/** @typedef {LOAD_STATE[keyof LOAD_STATE]} LoadState */\r\n/** @type {{ IDLE: 'idle'; LOADING: 'loading'; LOADED: 'loaded'; ERROR: 'error' }} */\r\nexport const LOAD_STATE = {\r\n IDLE: 'idle',\r\n LOADING: 'loading',\r\n LOADED: 'loaded',\r\n ERROR: 'error',\r\n};\r\n\r\n\r\n/**\r\n * Check if click or keydown event was dispatched\r\n * with a special key or via mouse wheel.\r\n *\r\n * @param {MouseEvent | KeyboardEvent} e\r\n * @returns {boolean}\r\n */\r\nexport function specialKeyUsed(e) {\r\n return ('button' in e && e.button === 1) || e.ctrlKey || e.metaKey || e.altKey || e.shiftKey;\r\n}\r\n\r\n/**\r\n * Parse `gallery` or `children` options.\r\n *\r\n * @param {import('../photoswipe.js').ElementProvider} [option]\r\n * @param {string} [legacySelector]\r\n * @param {HTMLElement | Document} [parent]\r\n * @returns HTMLElement[]\r\n */\r\nexport function getElementsFromOption(option, legacySelector, parent = document) {\r\n /** @type {HTMLElement[]} */\r\n let elements = [];\r\n\r\n if (option instanceof Element) {\r\n elements = [option];\r\n } else if (option instanceof NodeList || Array.isArray(option)) {\r\n elements = Array.from(option);\r\n } else {\r\n const selector = typeof option === 'string' ? option : legacySelector;\r\n if (selector) {\r\n elements = Array.from(parent.querySelectorAll(selector));\r\n }\r\n }\r\n\r\n return elements;\r\n}\r\n\r\n/**\r\n * Check if variable is PhotoSwipe class\r\n *\r\n * @param {any} fn\r\n * @returns {boolean}\r\n */\r\nexport function isPswpClass(fn) {\r\n return typeof fn === 'function'\r\n && fn.prototype\r\n && fn.prototype.goTo;\r\n}\r\n\r\n/**\r\n * Check if browser is Safari\r\n *\r\n * @returns {boolean}\r\n */\r\nexport function isSafari() {\r\n return !!(navigator.vendor && navigator.vendor.match(/apple/i));\r\n}\r\n\r\n","/** @typedef {import('../lightbox/lightbox.js').default} PhotoSwipeLightbox */\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../photoswipe.js').DataSource} DataSource */\r\n/** @typedef {import('../ui/ui-element.js').UIElementData} UIElementData */\r\n/** @typedef {import('../slide/content.js').default} ContentDefault */\r\n/** @typedef {import('../slide/slide.js').default} Slide */\r\n/** @typedef {import('../slide/slide.js').SlideData} SlideData */\r\n/** @typedef {import('../slide/zoom-level.js').default} ZoomLevel */\r\n/** @typedef {import('../slide/get-thumb-bounds.js').Bounds} Bounds */\r\n\r\n/**\r\n * Allow adding an arbitrary props to the Content\r\n * https://photoswipe.com/custom-content/#using-webp-image-format\r\n * @typedef {ContentDefault & Record} Content\r\n */\r\n/** @typedef {{ x?: number; y?: number }} Point */\r\n\r\n/**\r\n * @typedef {Object} PhotoSwipeEventsMap https://photoswipe.com/events/\r\n *\r\n *\r\n * https://photoswipe.com/adding-ui-elements/\r\n *\r\n * @prop {undefined} uiRegister\r\n * @prop {{ data: UIElementData }} uiElementCreate\r\n *\r\n *\r\n * https://photoswipe.com/events/#initialization-events\r\n *\r\n * @prop {undefined} beforeOpen\r\n * @prop {undefined} firstUpdate\r\n * @prop {undefined} initialLayout\r\n * @prop {undefined} change\r\n * @prop {undefined} afterInit\r\n * @prop {undefined} bindEvents\r\n *\r\n *\r\n * https://photoswipe.com/events/#opening-or-closing-transition-events\r\n *\r\n * @prop {undefined} openingAnimationStart\r\n * @prop {undefined} openingAnimationEnd\r\n * @prop {undefined} closingAnimationStart\r\n * @prop {undefined} closingAnimationEnd\r\n *\r\n *\r\n * https://photoswipe.com/events/#closing-events\r\n *\r\n * @prop {undefined} close\r\n * @prop {undefined} destroy\r\n *\r\n *\r\n * https://photoswipe.com/events/#pointer-and-gesture-events\r\n *\r\n * @prop {{ originalEvent: PointerEvent }} pointerDown\r\n * @prop {{ originalEvent: PointerEvent }} pointerMove\r\n * @prop {{ originalEvent: PointerEvent }} pointerUp\r\n * @prop {{ bgOpacity: number }} pinchClose can be default prevented\r\n * @prop {{ panY: number }} verticalDrag can be default prevented\r\n *\r\n *\r\n * https://photoswipe.com/events/#slide-content-events\r\n *\r\n * @prop {{ content: Content }} contentInit\r\n * @prop {{ content: Content; isLazy: boolean }} contentLoad can be default prevented\r\n * @prop {{ content: Content; isLazy: boolean }} contentLoadImage can be default prevented\r\n * @prop {{ content: Content; slide: Slide; isError?: boolean }} loadComplete\r\n * @prop {{ content: Content; slide: Slide }} loadError\r\n * @prop {{ content: Content; width: number; height: number }} contentResize can be default prevented\r\n * @prop {{ content: Content; width: number; height: number; slide: Slide }} imageSizeChange\r\n * @prop {{ content: Content }} contentLazyLoad can be default prevented\r\n * @prop {{ content: Content }} contentAppend can be default prevented\r\n * @prop {{ content: Content }} contentActivate can be default prevented\r\n * @prop {{ content: Content }} contentDeactivate can be default prevented\r\n * @prop {{ content: Content }} contentRemove can be default prevented\r\n * @prop {{ content: Content }} contentDestroy can be default prevented\r\n *\r\n *\r\n * undocumented\r\n *\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} imageClickAction can be default prevented\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} bgClickAction can be default prevented\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} tapAction can be default prevented\r\n * @prop {{ point: Point; originalEvent: PointerEvent }} doubleTapAction can be default prevented\r\n *\r\n * @prop {{ originalEvent: KeyboardEvent }} keydown can be default prevented\r\n * @prop {{ x: number; dragging: boolean }} moveMainScroll\r\n * @prop {{ slide: Slide }} firstZoomPan\r\n * @prop {{ slide: Slide | undefined, data: SlideData, index: number }} gettingData\r\n * @prop {undefined} beforeResize\r\n * @prop {undefined} resize\r\n * @prop {undefined} viewportSize\r\n * @prop {undefined} updateScrollOffset\r\n * @prop {{ slide: Slide }} slideInit\r\n * @prop {{ slide: Slide }} afterSetContent\r\n * @prop {{ slide: Slide }} slideLoad\r\n * @prop {{ slide: Slide }} appendHeavy can be default prevented\r\n * @prop {{ slide: Slide }} appendHeavyContent\r\n * @prop {{ slide: Slide }} slideActivate\r\n * @prop {{ slide: Slide }} slideDeactivate\r\n * @prop {{ slide: Slide }} slideDestroy\r\n * @prop {{ destZoomLevel: number, centerPoint: Point | undefined, transitionDuration: number | false | undefined }} beforeZoomTo\r\n * @prop {{ slide: Slide }} zoomPanUpdate\r\n * @prop {{ slide: Slide }} initialZoomPan\r\n * @prop {{ slide: Slide }} calcSlideSize\r\n * @prop {undefined} resolutionChanged\r\n * @prop {{ originalEvent: WheelEvent }} wheel can be default prevented\r\n * @prop {{ content: Content }} contentAppendImage can be default prevented\r\n * @prop {{ index: number; itemData: SlideData }} lazyLoadSlide can be default prevented\r\n * @prop {undefined} lazyLoad\r\n * @prop {{ slide: Slide }} calcBounds\r\n * @prop {{ zoomLevels: ZoomLevel, slideData: SlideData }} zoomLevelsUpdate\r\n *\r\n *\r\n * legacy\r\n *\r\n * @prop {undefined} init\r\n * @prop {undefined} initialZoomIn\r\n * @prop {undefined} initialZoomOut\r\n * @prop {undefined} initialZoomInEnd\r\n * @prop {undefined} initialZoomOutEnd\r\n * @prop {{ dataSource: DataSource | undefined, numItems: number }} numItems\r\n * @prop {{ itemData: SlideData; index: number }} itemData\r\n * @prop {{ index: number, itemData: SlideData, instance: PhotoSwipe }} thumbBounds\r\n */\r\n\r\n/**\r\n * @typedef {Object} PhotoSwipeFiltersMap https://photoswipe.com/filters/\r\n *\r\n * @prop {(numItems: number, dataSource: DataSource | undefined) => number} numItems\r\n * Modify the total amount of slides. Example on Data sources page.\r\n * https://photoswipe.com/filters/#numitems\r\n *\r\n * @prop {(itemData: SlideData, index: number) => SlideData} itemData\r\n * Modify slide item data. Example on Data sources page.\r\n * https://photoswipe.com/filters/#itemdata\r\n *\r\n * @prop {(itemData: SlideData, element: HTMLElement, linkEl: HTMLAnchorElement) => SlideData} domItemData\r\n * Modify item data when it's parsed from DOM element. Example on Data sources page.\r\n * https://photoswipe.com/filters/#domitemdata\r\n *\r\n * @prop {(clickedIndex: number, e: MouseEvent, instance: PhotoSwipeLightbox) => number} clickedIndex\r\n * Modify clicked gallery item index.\r\n * https://photoswipe.com/filters/#clickedindex\r\n *\r\n * @prop {(placeholderSrc: string | false, content: Content) => string | false} placeholderSrc\r\n * Modify placeholder image source.\r\n * https://photoswipe.com/filters/#placeholdersrc\r\n *\r\n * @prop {(isContentLoading: boolean, content: Content) => boolean} isContentLoading\r\n * Modify if the content is currently loading.\r\n * https://photoswipe.com/filters/#iscontentloading\r\n *\r\n * @prop {(isContentZoomable: boolean, content: Content) => boolean} isContentZoomable\r\n * Modify if the content can be zoomed.\r\n * https://photoswipe.com/filters/#iscontentzoomable\r\n *\r\n * @prop {(useContentPlaceholder: boolean, content: Content) => boolean} useContentPlaceholder\r\n * Modify if the placeholder should be used for the content.\r\n * https://photoswipe.com/filters/#usecontentplaceholder\r\n *\r\n * @prop {(isKeepingPlaceholder: boolean, content: Content) => boolean} isKeepingPlaceholder\r\n * Modify if the placeholder should be kept after the content is loaded.\r\n * https://photoswipe.com/filters/#iskeepingplaceholder\r\n *\r\n *\r\n * @prop {(contentErrorElement: HTMLElement, content: Content) => HTMLElement} contentErrorElement\r\n * Modify an element when the content has error state (for example, if image cannot be loaded).\r\n * https://photoswipe.com/filters/#contenterrorelement\r\n *\r\n * @prop {(element: HTMLElement, data: UIElementData) => HTMLElement} uiElement\r\n * Modify a UI element that's being created.\r\n * https://photoswipe.com/filters/#uielement\r\n *\r\n * @prop {(thumbnail: HTMLElement | null | undefined, itemData: SlideData, index: number) => HTMLElement} thumbEl\r\n * Modify the thumbnail element from which opening zoom animation starts or ends.\r\n * https://photoswipe.com/filters/#thumbel\r\n *\r\n * @prop {(thumbBounds: Bounds | undefined, itemData: SlideData, index: number) => Bounds} thumbBounds\r\n * Modify the thumbnail bounds from which opening zoom animation starts or ends.\r\n * https://photoswipe.com/filters/#thumbbounds\r\n *\r\n * @prop {(srcsetSizesWidth: number, content: Content) => number} srcsetSizesWidth\r\n *\r\n * @prop {(preventPointerEvent: boolean, event: PointerEvent, pointerType: string) => boolean} preventPointerEvent\r\n *\r\n */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @typedef {{ fn: PhotoSwipeFiltersMap[T], priority: number }} Filter\r\n */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {PhotoSwipeEventsMap[T] extends undefined ? PhotoSwipeEvent : PhotoSwipeEvent & PhotoSwipeEventsMap[T]} AugmentedEvent\r\n */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {(event: AugmentedEvent) => void} EventCallback\r\n */\r\n\r\n/**\r\n * Base PhotoSwipe event object\r\n *\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n */\r\nclass PhotoSwipeEvent {\r\n /**\r\n * @param {T} type\r\n * @param {PhotoSwipeEventsMap[T]} [details]\r\n */\r\n constructor(type, details) {\r\n this.type = type;\r\n this.defaultPrevented = false;\r\n if (details) {\r\n Object.assign(this, details);\r\n }\r\n }\r\n\r\n preventDefault() {\r\n this.defaultPrevented = true;\r\n }\r\n}\r\n\r\n/**\r\n * PhotoSwipe base class that can listen and dispatch for events.\r\n * Shared by PhotoSwipe Core and PhotoSwipe Lightbox, extended by base.js\r\n */\r\nclass Eventable {\r\n constructor() {\r\n /**\r\n * @type {{ [T in keyof PhotoSwipeEventsMap]?: ((event: AugmentedEvent) => void)[] }}\r\n */\r\n this._listeners = {};\r\n\r\n /**\r\n * @type {{ [T in keyof PhotoSwipeFiltersMap]?: Filter[] }}\r\n */\r\n this._filters = {};\r\n\r\n /** @type {PhotoSwipe | undefined} */\r\n this.pswp = undefined;\r\n\r\n /** @type {PhotoSwipeOptions | undefined} */\r\n this.options = undefined;\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @param {T} name\r\n * @param {PhotoSwipeFiltersMap[T]} fn\r\n * @param {number} priority\r\n */\r\n addFilter(name, fn, priority = 100) {\r\n if (!this._filters[name]) {\r\n this._filters[name] = [];\r\n }\r\n\r\n this._filters[name]?.push({ fn, priority });\r\n this._filters[name]?.sort((f1, f2) => f1.priority - f2.priority);\r\n\r\n this.pswp?.addFilter(name, fn, priority);\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @param {T} name\r\n * @param {PhotoSwipeFiltersMap[T]} fn\r\n */\r\n removeFilter(name, fn) {\r\n if (this._filters[name]) {\r\n // @ts-expect-error\r\n this._filters[name] = this._filters[name].filter(filter => (filter.fn !== fn));\r\n }\r\n\r\n if (this.pswp) {\r\n this.pswp.removeFilter(name, fn);\r\n }\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeFiltersMap} T\r\n * @param {T} name\r\n * @param {Parameters} args\r\n * @returns {Parameters[0]}\r\n */\r\n applyFilters(name, ...args) {\r\n this._filters[name]?.forEach((filter) => {\r\n // @ts-expect-error\r\n args[0] = filter.fn.apply(this, args);\r\n });\r\n return args[0];\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @param {T} name\r\n * @param {EventCallback} fn\r\n */\r\n on(name, fn) {\r\n if (!this._listeners[name]) {\r\n this._listeners[name] = [];\r\n }\r\n this._listeners[name]?.push(fn);\r\n\r\n // When binding events to lightbox,\r\n // also bind events to PhotoSwipe Core,\r\n // if it's open.\r\n this.pswp?.on(name, fn);\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @param {T} name\r\n * @param {EventCallback} fn\r\n */\r\n off(name, fn) {\r\n if (this._listeners[name]) {\r\n // @ts-expect-error\r\n this._listeners[name] = this._listeners[name].filter(listener => (fn !== listener));\r\n }\r\n\r\n this.pswp?.off(name, fn);\r\n }\r\n\r\n /**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @param {T} name\r\n * @param {PhotoSwipeEventsMap[T]} [details]\r\n * @returns {AugmentedEvent}\r\n */\r\n dispatch(name, details) {\r\n if (this.pswp) {\r\n return this.pswp.dispatch(name, details);\r\n }\r\n\r\n const event = /** @type {AugmentedEvent} */ (new PhotoSwipeEvent(name, details));\r\n\r\n this._listeners[name]?.forEach((listener) => {\r\n listener.call(this, event);\r\n });\r\n\r\n return event;\r\n }\r\n}\r\n\r\nexport default Eventable;\r\n","import { createElement, setWidthHeight, toTransformString } from '../util/util.js';\r\n\r\nclass Placeholder {\r\n /**\r\n * @param {string | false} imageSrc\r\n * @param {HTMLElement} container\r\n */\r\n constructor(imageSrc, container) {\r\n // Create placeholder\r\n // (stretched thumbnail or simple div behind the main image)\r\n /** @type {HTMLImageElement | HTMLDivElement | null} */\r\n this.element = createElement(\r\n 'pswp__img pswp__img--placeholder',\r\n imageSrc ? 'img' : 'div',\r\n container\r\n );\r\n\r\n if (imageSrc) {\r\n const imgEl = /** @type {HTMLImageElement} */ (this.element);\r\n imgEl.decoding = 'async';\r\n imgEl.alt = '';\r\n imgEl.src = imageSrc;\r\n imgEl.setAttribute('role', 'presentation');\r\n }\r\n\r\n this.element.setAttribute('aria-hidden', 'true');\r\n }\r\n\r\n /**\r\n * @param {number} width\r\n * @param {number} height\r\n */\r\n setDisplayedSize(width, height) {\r\n if (!this.element) {\r\n return;\r\n }\r\n\r\n if (this.element.tagName === 'IMG') {\r\n // Use transform scale() to modify img placeholder size\r\n // (instead of changing width/height directly).\r\n // This helps with performance, specifically in iOS15 Safari.\r\n setWidthHeight(this.element, 250, 'auto');\r\n this.element.style.transformOrigin = '0 0';\r\n this.element.style.transform = toTransformString(0, 0, width / 250);\r\n } else {\r\n setWidthHeight(this.element, width, height);\r\n }\r\n }\r\n\r\n destroy() {\r\n if (this.element?.parentNode) {\r\n this.element.remove();\r\n }\r\n this.element = null;\r\n }\r\n}\r\n\r\nexport default Placeholder;\r\n","import { createElement, isSafari, LOAD_STATE, setWidthHeight } from '../util/util.js';\r\nimport Placeholder from './placeholder.js';\r\n\r\n/** @typedef {import('./slide.js').default} Slide */\r\n/** @typedef {import('./slide.js').SlideData} SlideData */\r\n/** @typedef {import('../core/base.js').default} PhotoSwipeBase */\r\n/** @typedef {import('../util/util.js').LoadState} LoadState */\r\n\r\nclass Content {\r\n /**\r\n * @param {SlideData} itemData Slide data\r\n * @param {PhotoSwipeBase} instance PhotoSwipe or PhotoSwipeLightbox instance\r\n * @param {number} index\r\n */\r\n constructor(itemData, instance, index) {\r\n this.instance = instance;\r\n this.data = itemData;\r\n this.index = index;\r\n\r\n /** @type {HTMLImageElement | HTMLDivElement | undefined} */\r\n this.element = undefined;\r\n /** @type {Placeholder | undefined} */\r\n this.placeholder = undefined;\r\n /** @type {Slide | undefined} */\r\n this.slide = undefined;\r\n\r\n this.displayedImageWidth = 0;\r\n this.displayedImageHeight = 0;\r\n\r\n this.width = Number(this.data.w) || Number(this.data.width) || 0;\r\n this.height = Number(this.data.h) || Number(this.data.height) || 0;\r\n\r\n this.isAttached = false;\r\n this.hasSlide = false;\r\n this.isDecoding = false;\r\n /** @type {LoadState} */\r\n this.state = LOAD_STATE.IDLE;\r\n\r\n if (this.data.type) {\r\n this.type = this.data.type;\r\n } else if (this.data.src) {\r\n this.type = 'image';\r\n } else {\r\n this.type = 'html';\r\n }\r\n\r\n this.instance.dispatch('contentInit', { content: this });\r\n }\r\n\r\n removePlaceholder() {\r\n if (this.placeholder && !this.keepPlaceholder()) {\r\n // With delay, as image might be loaded, but not rendered\r\n setTimeout(() => {\r\n if (this.placeholder) {\r\n this.placeholder.destroy();\r\n this.placeholder = undefined;\r\n }\r\n }, 1000);\r\n }\r\n }\r\n\r\n /**\r\n * Preload content\r\n *\r\n * @param {boolean} isLazy\r\n * @param {boolean} [reload]\r\n */\r\n load(isLazy, reload) {\r\n if (this.slide && this.usePlaceholder()) {\r\n if (!this.placeholder) {\r\n const placeholderSrc = this.instance.applyFilters(\r\n 'placeholderSrc',\r\n // use image-based placeholder only for the first slide,\r\n // as rendering (even small stretched thumbnail) is an expensive operation\r\n (this.data.msrc && this.slide.isFirstSlide) ? this.data.msrc : false,\r\n this\r\n );\r\n this.placeholder = new Placeholder(\r\n placeholderSrc,\r\n this.slide.container\r\n );\r\n } else {\r\n const placeholderEl = this.placeholder.element;\r\n // Add placeholder to DOM if it was already created\r\n if (placeholderEl && !placeholderEl.parentElement) {\r\n this.slide.container.prepend(placeholderEl);\r\n }\r\n }\r\n }\r\n\r\n if (this.element && !reload) {\r\n return;\r\n }\r\n\r\n if (this.instance.dispatch('contentLoad', { content: this, isLazy }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (this.isImageContent()) {\r\n this.element = createElement('pswp__img', 'img');\r\n // Start loading only after width is defined, as sizes might depend on it.\r\n // Due to Safari feature, we must define sizes before srcset.\r\n if (this.displayedImageWidth) {\r\n this.loadImage(isLazy);\r\n }\r\n } else {\r\n this.element = createElement('pswp__content', 'div');\r\n this.element.innerHTML = this.data.html || '';\r\n }\r\n\r\n if (reload && this.slide) {\r\n this.slide.updateContentSize(true);\r\n }\r\n }\r\n\r\n /**\r\n * Preload image\r\n *\r\n * @param {boolean} isLazy\r\n */\r\n loadImage(isLazy) {\r\n if (!this.isImageContent()\r\n || !this.element\r\n || this.instance.dispatch('contentLoadImage', { content: this, isLazy }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n const imageElement = /** @type HTMLImageElement */ (this.element);\r\n\r\n this.updateSrcsetSizes();\r\n\r\n if (this.data.srcset) {\r\n imageElement.srcset = this.data.srcset;\r\n }\r\n\r\n imageElement.src = this.data.src ?? '';\r\n imageElement.alt = this.data.alt ?? '';\r\n\r\n this.state = LOAD_STATE.LOADING;\r\n\r\n if (imageElement.complete) {\r\n this.onLoaded();\r\n } else {\r\n imageElement.onload = () => {\r\n this.onLoaded();\r\n };\r\n\r\n imageElement.onerror = () => {\r\n this.onError();\r\n };\r\n }\r\n }\r\n\r\n /**\r\n * Assign slide to content\r\n *\r\n * @param {Slide} slide\r\n */\r\n setSlide(slide) {\r\n this.slide = slide;\r\n this.hasSlide = true;\r\n this.instance = slide.pswp;\r\n\r\n // todo: do we need to unset slide?\r\n }\r\n\r\n /**\r\n * Content load success handler\r\n */\r\n onLoaded() {\r\n this.state = LOAD_STATE.LOADED;\r\n\r\n if (this.slide && this.element) {\r\n this.instance.dispatch('loadComplete', { slide: this.slide, content: this });\r\n\r\n // if content is reloaded\r\n if (this.slide.isActive\r\n && this.slide.heavyAppended\r\n && !this.element.parentNode) {\r\n this.append();\r\n this.slide.updateContentSize(true);\r\n }\r\n\r\n if (this.state === LOAD_STATE.LOADED || this.state === LOAD_STATE.ERROR) {\r\n this.removePlaceholder();\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * Content load error handler\r\n */\r\n onError() {\r\n this.state = LOAD_STATE.ERROR;\r\n\r\n if (this.slide) {\r\n this.displayError();\r\n this.instance.dispatch('loadComplete', { slide: this.slide, isError: true, content: this });\r\n this.instance.dispatch('loadError', { slide: this.slide, content: this });\r\n }\r\n }\r\n\r\n /**\r\n * @returns {Boolean} If the content is currently loading\r\n */\r\n isLoading() {\r\n return this.instance.applyFilters(\r\n 'isContentLoading',\r\n this.state === LOAD_STATE.LOADING,\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * @returns {Boolean} If the content is in error state\r\n */\r\n isError() {\r\n return this.state === LOAD_STATE.ERROR;\r\n }\r\n\r\n /**\r\n * @returns {boolean} If the content is image\r\n */\r\n isImageContent() {\r\n return this.type === 'image';\r\n }\r\n\r\n /**\r\n * Update content size\r\n *\r\n * @param {Number} width\r\n * @param {Number} height\r\n */\r\n setDisplayedSize(width, height) {\r\n if (!this.element) {\r\n return;\r\n }\r\n\r\n if (this.placeholder) {\r\n this.placeholder.setDisplayedSize(width, height);\r\n }\r\n\r\n if (this.instance.dispatch(\r\n 'contentResize',\r\n { content: this, width, height }).defaultPrevented\r\n ) {\r\n return;\r\n }\r\n\r\n setWidthHeight(this.element, width, height);\r\n\r\n if (this.isImageContent() && !this.isError()) {\r\n const isInitialSizeUpdate = (!this.displayedImageWidth && width);\r\n\r\n this.displayedImageWidth = width;\r\n this.displayedImageHeight = height;\r\n\r\n if (isInitialSizeUpdate) {\r\n this.loadImage(false);\r\n } else {\r\n this.updateSrcsetSizes();\r\n }\r\n\r\n if (this.slide) {\r\n this.instance.dispatch(\r\n 'imageSizeChange',\r\n { slide: this.slide, width, height, content: this }\r\n );\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * @returns {boolean} If the content can be zoomed\r\n */\r\n isZoomable() {\r\n return this.instance.applyFilters(\r\n 'isContentZoomable',\r\n this.isImageContent() && (this.state !== LOAD_STATE.ERROR),\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * Update image srcset sizes attribute based on width and height\r\n */\r\n updateSrcsetSizes() {\r\n // Handle srcset sizes attribute.\r\n //\r\n // Never lower quality, if it was increased previously.\r\n // Chrome does this automatically, Firefox and Safari do not,\r\n // so we store largest used size in dataset.\r\n if (!this.isImageContent() || !this.element || !this.data.srcset) {\r\n return;\r\n }\r\n\r\n const image = /** @type HTMLImageElement */ (this.element);\r\n const sizesWidth = this.instance.applyFilters(\r\n 'srcsetSizesWidth',\r\n this.displayedImageWidth,\r\n this\r\n );\r\n\r\n if (\r\n !image.dataset.largestUsedSize\r\n || sizesWidth > parseInt(image.dataset.largestUsedSize, 10)\r\n ) {\r\n image.sizes = sizesWidth + 'px';\r\n image.dataset.largestUsedSize = String(sizesWidth);\r\n }\r\n }\r\n\r\n /**\r\n * @returns {boolean} If content should use a placeholder (from msrc by default)\r\n */\r\n usePlaceholder() {\r\n return this.instance.applyFilters(\r\n 'useContentPlaceholder',\r\n this.isImageContent(),\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * Preload content with lazy-loading param\r\n */\r\n lazyLoad() {\r\n if (this.instance.dispatch('contentLazyLoad', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n this.load(true);\r\n }\r\n\r\n /**\r\n * @returns {boolean} If placeholder should be kept after content is loaded\r\n */\r\n keepPlaceholder() {\r\n return this.instance.applyFilters(\r\n 'isKeepingPlaceholder',\r\n this.isLoading(),\r\n this\r\n );\r\n }\r\n\r\n /**\r\n * Destroy the content\r\n */\r\n destroy() {\r\n this.hasSlide = false;\r\n this.slide = undefined;\r\n\r\n if (this.instance.dispatch('contentDestroy', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n this.remove();\r\n\r\n if (this.placeholder) {\r\n this.placeholder.destroy();\r\n this.placeholder = undefined;\r\n }\r\n\r\n if (this.isImageContent() && this.element) {\r\n this.element.onload = null;\r\n this.element.onerror = null;\r\n this.element = undefined;\r\n }\r\n }\r\n\r\n /**\r\n * Display error message\r\n */\r\n displayError() {\r\n if (this.slide) {\r\n let errorMsgEl = createElement('pswp__error-msg', 'div');\r\n errorMsgEl.innerText = this.instance.options?.errorMsg ?? '';\r\n errorMsgEl = /** @type {HTMLDivElement} */ (this.instance.applyFilters(\r\n 'contentErrorElement',\r\n errorMsgEl,\r\n this\r\n ));\r\n this.element = createElement('pswp__content pswp__error-msg-container', 'div');\r\n this.element.appendChild(errorMsgEl);\r\n this.slide.container.innerText = '';\r\n this.slide.container.appendChild(this.element);\r\n this.slide.updateContentSize(true);\r\n this.removePlaceholder();\r\n }\r\n }\r\n\r\n /**\r\n * Append the content\r\n */\r\n append() {\r\n if (this.isAttached || !this.element) {\r\n return;\r\n }\r\n\r\n this.isAttached = true;\r\n\r\n if (this.state === LOAD_STATE.ERROR) {\r\n this.displayError();\r\n return;\r\n }\r\n\r\n if (this.instance.dispatch('contentAppend', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n const supportsDecode = ('decode' in this.element);\r\n\r\n if (this.isImageContent()) {\r\n // Use decode() on nearby slides\r\n //\r\n // Nearby slide images are in DOM and not hidden via display:none.\r\n // However, they are placed offscreen (to the left and right side).\r\n //\r\n // Some browsers do not composite the image until it's actually visible,\r\n // using decode() helps.\r\n //\r\n // You might ask \"why dont you just decode() and then append all images\",\r\n // that's because I want to show image before it's fully loaded,\r\n // as browser can render parts of image while it is loading.\r\n // We do not do this in Safari due to partial loading bug.\r\n if (supportsDecode && this.slide && (!this.slide.isActive || isSafari())) {\r\n this.isDecoding = true;\r\n // purposefully using finally instead of then,\r\n // as if srcset sizes changes dynamically - it may cause decode error\r\n /** @type {HTMLImageElement} */\r\n (this.element).decode().catch(() => {}).finally(() => {\r\n this.isDecoding = false;\r\n this.appendImage();\r\n });\r\n } else {\r\n this.appendImage();\r\n }\r\n } else if (this.slide && !this.element.parentNode) {\r\n this.slide.container.appendChild(this.element);\r\n }\r\n }\r\n\r\n /**\r\n * Activate the slide,\r\n * active slide is generally the current one,\r\n * meaning the user can see it.\r\n */\r\n activate() {\r\n if (this.instance.dispatch('contentActivate', { content: this }).defaultPrevented\r\n || !this.slide) {\r\n return;\r\n }\r\n\r\n if (this.isImageContent() && this.isDecoding && !isSafari()) {\r\n // add image to slide when it becomes active,\r\n // even if it's not finished decoding\r\n this.appendImage();\r\n } else if (this.isError()) {\r\n this.load(false, true); // try to reload\r\n }\r\n\r\n if (this.slide.holderElement) {\r\n this.slide.holderElement.setAttribute('aria-hidden', 'false');\r\n }\r\n }\r\n\r\n /**\r\n * Deactivate the content\r\n */\r\n deactivate() {\r\n this.instance.dispatch('contentDeactivate', { content: this });\r\n if (this.slide && this.slide.holderElement) {\r\n this.slide.holderElement.setAttribute('aria-hidden', 'true');\r\n }\r\n }\r\n\r\n\r\n /**\r\n * Remove the content from DOM\r\n */\r\n remove() {\r\n this.isAttached = false;\r\n\r\n if (this.instance.dispatch('contentRemove', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n if (this.element && this.element.parentNode) {\r\n this.element.remove();\r\n }\r\n\r\n if (this.placeholder && this.placeholder.element) {\r\n this.placeholder.element.remove();\r\n }\r\n }\r\n\r\n /**\r\n * Append the image content to slide container\r\n */\r\n appendImage() {\r\n if (!this.isAttached) {\r\n return;\r\n }\r\n\r\n if (this.instance.dispatch('contentAppendImage', { content: this }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n // ensure that element exists and is not already appended\r\n if (this.slide && this.element && !this.element.parentNode) {\r\n this.slide.container.appendChild(this.element);\r\n }\r\n\r\n if (this.state === LOAD_STATE.LOADED || this.state === LOAD_STATE.ERROR) {\r\n this.removePlaceholder();\r\n }\r\n }\r\n}\r\n\r\nexport default Content;\r\n","/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../core/base.js').default} PhotoSwipeBase */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('../slide/slide.js').SlideData} SlideData */\r\n\r\n/**\r\n * @param {PhotoSwipeOptions} options\r\n * @param {PhotoSwipeBase} pswp\r\n * @returns {Point}\r\n */\r\nexport function getViewportSize(options, pswp) {\r\n if (options.getViewportSizeFn) {\r\n const newViewportSize = options.getViewportSizeFn(options, pswp);\r\n if (newViewportSize) {\r\n return newViewportSize;\r\n }\r\n }\r\n\r\n return {\r\n x: document.documentElement.clientWidth,\r\n\r\n // TODO: height on mobile is very incosistent due to toolbar\r\n // find a way to improve this\r\n //\r\n // document.documentElement.clientHeight - doesn't seem to work well\r\n y: window.innerHeight\r\n };\r\n}\r\n\r\n/**\r\n * Parses padding option.\r\n * Supported formats:\r\n *\r\n * // Object\r\n * padding: {\r\n * top: 0,\r\n * bottom: 0,\r\n * left: 0,\r\n * right: 0\r\n * }\r\n *\r\n * // A function that returns the object\r\n * paddingFn: (viewportSize, itemData, index) => {\r\n * return {\r\n * top: 0,\r\n * bottom: 0,\r\n * left: 0,\r\n * right: 0\r\n * };\r\n * }\r\n *\r\n * // Legacy variant\r\n * paddingLeft: 0,\r\n * paddingRight: 0,\r\n * paddingTop: 0,\r\n * paddingBottom: 0,\r\n *\r\n * @param {'left' | 'top' | 'bottom' | 'right'} prop\r\n * @param {PhotoSwipeOptions} options PhotoSwipe options\r\n * @param {Point} viewportSize PhotoSwipe viewport size, for example: { x:800, y:600 }\r\n * @param {SlideData} itemData Data about the slide\r\n * @param {number} index Slide index\r\n * @returns {number}\r\n */\r\nexport function parsePaddingOption(prop, options, viewportSize, itemData, index) {\r\n let paddingValue = 0;\r\n\r\n if (options.paddingFn) {\r\n paddingValue = options.paddingFn(viewportSize, itemData, index)[prop];\r\n } else if (options.padding) {\r\n paddingValue = options.padding[prop];\r\n } else {\r\n const legacyPropName = 'padding' + prop[0].toUpperCase() + prop.slice(1);\r\n // @ts-expect-error\r\n if (options[legacyPropName]) {\r\n // @ts-expect-error\r\n paddingValue = options[legacyPropName];\r\n }\r\n }\r\n\r\n return Number(paddingValue) || 0;\r\n}\r\n\r\n/**\r\n * @param {PhotoSwipeOptions} options\r\n * @param {Point} viewportSize\r\n * @param {SlideData} itemData\r\n * @param {number} index\r\n * @returns {Point}\r\n */\r\nexport function getPanAreaSize(options, viewportSize, itemData, index) {\r\n return {\r\n x: viewportSize.x\r\n - parsePaddingOption('left', options, viewportSize, itemData, index)\r\n - parsePaddingOption('right', options, viewportSize, itemData, index),\r\n y: viewportSize.y\r\n - parsePaddingOption('top', options, viewportSize, itemData, index)\r\n - parsePaddingOption('bottom', options, viewportSize, itemData, index)\r\n };\r\n}\r\n","const MAX_IMAGE_WIDTH = 4000;\r\n\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('../slide/slide.js').SlideData} SlideData */\r\n\r\n/** @typedef {'fit' | 'fill' | number | ((zoomLevelObject: ZoomLevel) => number)} ZoomLevelOption */\r\n\r\n/**\r\n * Calculates zoom levels for specific slide.\r\n * Depends on viewport size and image size.\r\n */\r\nclass ZoomLevel {\r\n /**\r\n * @param {PhotoSwipeOptions} options PhotoSwipe options\r\n * @param {SlideData} itemData Slide data\r\n * @param {number} index Slide index\r\n * @param {PhotoSwipe} [pswp] PhotoSwipe instance, can be undefined if not initialized yet\r\n */\r\n constructor(options, itemData, index, pswp) {\r\n this.pswp = pswp;\r\n this.options = options;\r\n this.itemData = itemData;\r\n this.index = index;\r\n /** @type { Point | null } */\r\n this.panAreaSize = null;\r\n /** @type { Point | null } */\r\n this.elementSize = null;\r\n this.fit = 1;\r\n this.fill = 1;\r\n this.vFill = 1;\r\n this.initial = 1;\r\n this.secondary = 1;\r\n this.max = 1;\r\n this.min = 1;\r\n }\r\n\r\n /**\r\n * Calculate initial, secondary and maximum zoom level for the specified slide.\r\n *\r\n * It should be called when either image or viewport size changes.\r\n *\r\n * @param {number} maxWidth\r\n * @param {number} maxHeight\r\n * @param {Point} panAreaSize\r\n */\r\n update(maxWidth, maxHeight, panAreaSize) {\r\n /** @type {Point} */\r\n const elementSize = { x: maxWidth, y: maxHeight };\r\n this.elementSize = elementSize;\r\n this.panAreaSize = panAreaSize;\r\n\r\n const hRatio = panAreaSize.x / elementSize.x;\r\n const vRatio = panAreaSize.y / elementSize.y;\r\n\r\n this.fit = Math.min(1, hRatio < vRatio ? hRatio : vRatio);\r\n this.fill = Math.min(1, hRatio > vRatio ? hRatio : vRatio);\r\n\r\n // zoom.vFill defines zoom level of the image\r\n // when it has 100% of viewport vertical space (height)\r\n this.vFill = Math.min(1, vRatio);\r\n\r\n this.initial = this._getInitial();\r\n this.secondary = this._getSecondary();\r\n this.max = Math.max(\r\n this.initial,\r\n this.secondary,\r\n this._getMax()\r\n );\r\n\r\n this.min = Math.min(\r\n this.fit,\r\n this.initial,\r\n this.secondary\r\n );\r\n\r\n if (this.pswp) {\r\n this.pswp.dispatch('zoomLevelsUpdate', { zoomLevels: this, slideData: this.itemData });\r\n }\r\n }\r\n\r\n /**\r\n * Parses user-defined zoom option.\r\n *\r\n * @private\r\n * @param {'initial' | 'secondary' | 'max'} optionPrefix Zoom level option prefix (initial, secondary, max)\r\n * @returns { number | undefined }\r\n */\r\n _parseZoomLevelOption(optionPrefix) {\r\n const optionName = /** @type {'initialZoomLevel' | 'secondaryZoomLevel' | 'maxZoomLevel'} */ (\r\n optionPrefix + 'ZoomLevel'\r\n );\r\n const optionValue = this.options[optionName];\r\n\r\n if (!optionValue) {\r\n return;\r\n }\r\n\r\n if (typeof optionValue === 'function') {\r\n return optionValue(this);\r\n }\r\n\r\n if (optionValue === 'fill') {\r\n return this.fill;\r\n }\r\n\r\n if (optionValue === 'fit') {\r\n return this.fit;\r\n }\r\n\r\n return Number(optionValue);\r\n }\r\n\r\n /**\r\n * Get zoom level to which image will be zoomed after double-tap gesture,\r\n * or when user clicks on zoom icon,\r\n * or mouse-click on image itself.\r\n * If you return 1 image will be zoomed to its original size.\r\n *\r\n * @private\r\n * @return {number}\r\n */\r\n _getSecondary() {\r\n let currZoomLevel = this._parseZoomLevelOption('secondary');\r\n\r\n if (currZoomLevel) {\r\n return currZoomLevel;\r\n }\r\n\r\n // 3x of \"fit\" state, but not larger than original\r\n currZoomLevel = Math.min(1, this.fit * 3);\r\n\r\n if (this.elementSize && currZoomLevel * this.elementSize.x > MAX_IMAGE_WIDTH) {\r\n currZoomLevel = MAX_IMAGE_WIDTH / this.elementSize.x;\r\n }\r\n\r\n return currZoomLevel;\r\n }\r\n\r\n /**\r\n * Get initial image zoom level.\r\n *\r\n * @private\r\n * @return {number}\r\n */\r\n _getInitial() {\r\n return this._parseZoomLevelOption('initial') || this.fit;\r\n }\r\n\r\n /**\r\n * Maximum zoom level when user zooms\r\n * via zoom/pinch gesture,\r\n * via cmd/ctrl-wheel or via trackpad.\r\n *\r\n * @private\r\n * @return {number}\r\n */\r\n _getMax() {\r\n // max zoom level is x4 from \"fit state\",\r\n // used for zoom gesture and ctrl/trackpad zoom\r\n return this._parseZoomLevelOption('max') || Math.max(1, this.fit * 4);\r\n }\r\n}\r\n\r\nexport default ZoomLevel;\r\n","import { getViewportSize, getPanAreaSize } from '../util/viewport-size.js';\r\nimport ZoomLevel from './zoom-level.js';\r\n\r\n/** @typedef {import('./content.js').default} Content */\r\n/** @typedef {import('./slide.js').default} Slide */\r\n/** @typedef {import('./slide.js').SlideData} SlideData */\r\n/** @typedef {import('../core/base.js').default} PhotoSwipeBase */\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n\r\nconst MIN_SLIDES_TO_CACHE = 5;\r\n\r\n/**\r\n * Lazy-load an image\r\n * This function is used both by Lightbox and PhotoSwipe core,\r\n * thus it can be called before dialog is opened.\r\n *\r\n * @param {SlideData} itemData Data about the slide\r\n * @param {PhotoSwipeBase} instance PhotoSwipe or PhotoSwipeLightbox instance\r\n * @param {number} index\r\n * @returns {Content} Image that is being decoded or false.\r\n */\r\nexport function lazyLoadData(itemData, instance, index) {\r\n const content = instance.createContentFromData(itemData, index);\r\n /** @type {ZoomLevel | undefined} */\r\n let zoomLevel;\r\n\r\n const { options } = instance;\r\n\r\n // We need to know dimensions of the image to preload it,\r\n // as it might use srcset, and we need to define sizes\r\n if (options) {\r\n zoomLevel = new ZoomLevel(options, itemData, -1);\r\n\r\n let viewportSize;\r\n if (instance.pswp) {\r\n viewportSize = instance.pswp.viewportSize;\r\n } else {\r\n viewportSize = getViewportSize(options, instance);\r\n }\r\n\r\n const panAreaSize = getPanAreaSize(options, viewportSize, itemData, index);\r\n zoomLevel.update(content.width, content.height, panAreaSize);\r\n }\r\n\r\n content.lazyLoad();\r\n\r\n if (zoomLevel) {\r\n content.setDisplayedSize(\r\n Math.ceil(content.width * zoomLevel.initial),\r\n Math.ceil(content.height * zoomLevel.initial)\r\n );\r\n }\r\n\r\n return content;\r\n}\r\n\r\n\r\n/**\r\n * Lazy-loads specific slide.\r\n * This function is used both by Lightbox and PhotoSwipe core,\r\n * thus it can be called before dialog is opened.\r\n *\r\n * By default, it loads image based on viewport size and initial zoom level.\r\n *\r\n * @param {number} index Slide index\r\n * @param {PhotoSwipeBase} instance PhotoSwipe or PhotoSwipeLightbox eventable instance\r\n * @returns {Content | undefined}\r\n */\r\nexport function lazyLoadSlide(index, instance) {\r\n const itemData = instance.getItemData(index);\r\n\r\n if (instance.dispatch('lazyLoadSlide', { index, itemData }).defaultPrevented) {\r\n return;\r\n }\r\n\r\n return lazyLoadData(itemData, instance, index);\r\n}\r\n\r\nclass ContentLoader {\r\n /**\r\n * @param {PhotoSwipe} pswp\r\n */\r\n constructor(pswp) {\r\n this.pswp = pswp;\r\n // Total amount of cached images\r\n this.limit = Math.max(\r\n pswp.options.preload[0] + pswp.options.preload[1] + 1,\r\n MIN_SLIDES_TO_CACHE\r\n );\r\n /** @type {Content[]} */\r\n this._cachedItems = [];\r\n }\r\n\r\n /**\r\n * Lazy load nearby slides based on `preload` option.\r\n *\r\n * @param {number} [diff] Difference between slide indexes that was changed recently, or 0.\r\n */\r\n updateLazy(diff) {\r\n const { pswp } = this;\r\n\r\n if (pswp.dispatch('lazyLoad').defaultPrevented) {\r\n return;\r\n }\r\n\r\n const { preload } = pswp.options;\r\n const isForward = diff === undefined ? true : (diff >= 0);\r\n let i;\r\n\r\n // preload[1] - num items to preload in forward direction\r\n for (i = 0; i <= preload[1]; i++) {\r\n this.loadSlideByIndex(pswp.currIndex + (isForward ? i : (-i)));\r\n }\r\n\r\n // preload[0] - num items to preload in backward direction\r\n for (i = 1; i <= preload[0]; i++) {\r\n this.loadSlideByIndex(pswp.currIndex + (isForward ? (-i) : i));\r\n }\r\n }\r\n\r\n /**\r\n * @param {number} initialIndex\r\n */\r\n loadSlideByIndex(initialIndex) {\r\n const index = this.pswp.getLoopedIndex(initialIndex);\r\n // try to get cached content\r\n let content = this.getContentByIndex(index);\r\n if (!content) {\r\n // no cached content, so try to load from scratch:\r\n content = lazyLoadSlide(index, this.pswp);\r\n // if content can be loaded, add it to cache:\r\n if (content) {\r\n this.addToCache(content);\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * @param {Slide} slide\r\n * @returns {Content}\r\n */\r\n getContentBySlide(slide) {\r\n let content = this.getContentByIndex(slide.index);\r\n if (!content) {\r\n // create content if not found in cache\r\n content = this.pswp.createContentFromData(slide.data, slide.index);\r\n this.addToCache(content);\r\n }\r\n\r\n // assign slide to content\r\n content.setSlide(slide);\r\n\r\n return content;\r\n }\r\n\r\n /**\r\n * @param {Content} content\r\n */\r\n addToCache(content) {\r\n // move to the end of array\r\n this.removeByIndex(content.index);\r\n this._cachedItems.push(content);\r\n\r\n if (this._cachedItems.length > this.limit) {\r\n // Destroy the first content that's not attached\r\n const indexToRemove = this._cachedItems.findIndex((item) => {\r\n return !item.isAttached && !item.hasSlide;\r\n });\r\n if (indexToRemove !== -1) {\r\n const removedItem = this._cachedItems.splice(indexToRemove, 1)[0];\r\n removedItem.destroy();\r\n }\r\n }\r\n }\r\n\r\n /**\r\n * Removes an image from cache, does not destroy() it, just removes.\r\n *\r\n * @param {number} index\r\n */\r\n removeByIndex(index) {\r\n const indexToRemove = this._cachedItems.findIndex(item => item.index === index);\r\n if (indexToRemove !== -1) {\r\n this._cachedItems.splice(indexToRemove, 1);\r\n }\r\n }\r\n\r\n /**\r\n * @param {number} index\r\n * @returns {Content | undefined}\r\n */\r\n getContentByIndex(index) {\r\n return this._cachedItems.find(content => content.index === index);\r\n }\r\n\r\n destroy() {\r\n this._cachedItems.forEach(content => content.destroy());\r\n this._cachedItems = [];\r\n }\r\n}\r\n\r\nexport default ContentLoader;\r\n","import Eventable from './eventable.js';\r\nimport { getElementsFromOption } from '../util/util.js';\r\nimport Content from '../slide/content.js';\r\nimport { lazyLoadData } from '../slide/loader.js';\r\n\r\n/** @typedef {import(\"../photoswipe.js\").default} PhotoSwipe */\r\n/** @typedef {import(\"../slide/slide.js\").SlideData} SlideData */\r\n\r\n/**\r\n * PhotoSwipe base class that can retrieve data about every slide.\r\n * Shared by PhotoSwipe Core and PhotoSwipe Lightbox\r\n */\r\nclass PhotoSwipeBase extends Eventable {\r\n /**\r\n * Get total number of slides\r\n *\r\n * @returns {number}\r\n */\r\n getNumItems() {\r\n let numItems = 0;\r\n const dataSource = this.options?.dataSource;\r\n\r\n if (dataSource && 'length' in dataSource) {\r\n // may be an array or just object with length property\r\n numItems = dataSource.length;\r\n } else if (dataSource && 'gallery' in dataSource) {\r\n // query DOM elements\r\n if (!dataSource.items) {\r\n dataSource.items = this._getGalleryDOMElements(dataSource.gallery);\r\n }\r\n\r\n if (dataSource.items) {\r\n numItems = dataSource.items.length;\r\n }\r\n }\r\n\r\n // legacy event, before filters were introduced\r\n const event = this.dispatch('numItems', {\r\n dataSource,\r\n numItems\r\n });\r\n return this.applyFilters('numItems', event.numItems, dataSource);\r\n }\r\n\r\n /**\r\n * @param {SlideData} slideData\r\n * @param {number} index\r\n * @returns {Content}\r\n */\r\n createContentFromData(slideData, index) {\r\n return new Content(slideData, this, index);\r\n }\r\n\r\n /**\r\n * Get item data by index.\r\n *\r\n * \"item data\" should contain normalized information that PhotoSwipe needs to generate a slide.\r\n * For example, it may contain properties like\r\n * `src`, `srcset`, `w`, `h`, which will be used to generate a slide with image.\r\n *\r\n * @param {number} index\r\n * @returns {SlideData}\r\n */\r\n getItemData(index) {\r\n const dataSource = this.options?.dataSource;\r\n /** @type {SlideData | HTMLElement} */\r\n let dataSourceItem = {};\r\n if (Array.isArray(dataSource)) {\r\n // Datasource is an array of elements\r\n dataSourceItem = dataSource[index];\r\n } else if (dataSource && 'gallery' in dataSource) {\r\n // dataSource has gallery property,\r\n // thus it was created by Lightbox, based on\r\n // gallery and children options\r\n\r\n // query DOM elements\r\n if (!dataSource.items) {\r\n dataSource.items = this._getGalleryDOMElements(dataSource.gallery);\r\n }\r\n\r\n dataSourceItem = dataSource.items[index];\r\n }\r\n\r\n let itemData = dataSourceItem;\r\n\r\n if (itemData instanceof Element) {\r\n itemData = this._domElementToItemData(itemData);\r\n }\r\n\r\n // Dispatching the itemData event,\r\n // it's a legacy verion before filters were introduced\r\n const event = this.dispatch('itemData', {\r\n itemData: itemData || {},\r\n index\r\n });\r\n\r\n return this.applyFilters('itemData', event.itemData, index);\r\n }\r\n\r\n /**\r\n * Get array of gallery DOM elements,\r\n * based on childSelector and gallery element.\r\n *\r\n * @param {HTMLElement} galleryElement\r\n * @returns {HTMLElement[]}\r\n */\r\n _getGalleryDOMElements(galleryElement) {\r\n if (this.options?.children || this.options?.childSelector) {\r\n return getElementsFromOption(\r\n this.options.children,\r\n this.options.childSelector,\r\n galleryElement\r\n ) || [];\r\n }\r\n\r\n return [galleryElement];\r\n }\r\n\r\n /**\r\n * Converts DOM element to item data object.\r\n *\r\n * @param {HTMLElement} element DOM element\r\n * @returns {SlideData}\r\n */\r\n _domElementToItemData(element) {\r\n /** @type {SlideData} */\r\n const itemData = {\r\n element\r\n };\r\n\r\n const linkEl = /** @type {HTMLAnchorElement} */ (\r\n element.tagName === 'A'\r\n ? element\r\n : element.querySelector('a')\r\n );\r\n\r\n if (linkEl) {\r\n // src comes from data-pswp-src attribute,\r\n // if it's empty link href is used\r\n itemData.src = linkEl.dataset.pswpSrc || linkEl.href;\r\n\r\n if (linkEl.dataset.pswpSrcset) {\r\n itemData.srcset = linkEl.dataset.pswpSrcset;\r\n }\r\n\r\n itemData.width = linkEl.dataset.pswpWidth ? parseInt(linkEl.dataset.pswpWidth, 10) : 0;\r\n itemData.height = linkEl.dataset.pswpHeight ? parseInt(linkEl.dataset.pswpHeight, 10) : 0;\r\n\r\n // support legacy w & h properties\r\n itemData.w = itemData.width;\r\n itemData.h = itemData.height;\r\n\r\n if (linkEl.dataset.pswpType) {\r\n itemData.type = linkEl.dataset.pswpType;\r\n }\r\n\r\n const thumbnailEl = element.querySelector('img');\r\n\r\n if (thumbnailEl) {\r\n // msrc is URL to placeholder image that's displayed before large image is loaded\r\n // by default it's displayed only for the first slide\r\n itemData.msrc = thumbnailEl.currentSrc || thumbnailEl.src;\r\n itemData.alt = thumbnailEl.getAttribute('alt') ?? '';\r\n }\r\n\r\n if (linkEl.dataset.pswpCropped || linkEl.dataset.cropped) {\r\n itemData.thumbCropped = true;\r\n }\r\n }\r\n\r\n return this.applyFilters('domItemData', itemData, element, linkEl);\r\n }\r\n\r\n /**\r\n * Lazy-load by slide data\r\n *\r\n * @param {SlideData} itemData Data about the slide\r\n * @param {number} index\r\n * @returns {Content} Image that is being decoded or false.\r\n */\r\n lazyLoadData(itemData, index) {\r\n return lazyLoadData(itemData, this, index);\r\n }\r\n}\r\n\r\nexport default PhotoSwipeBase;\r\n","import {\r\n specialKeyUsed,\r\n getElementsFromOption,\r\n isPswpClass\r\n} from '../util/util.js';\r\n\r\nimport PhotoSwipeBase from '../core/base.js';\r\nimport { lazyLoadSlide } from '../slide/loader.js';\r\n\r\n/**\r\n * @template T\r\n * @typedef {import('../types.js').Type} Type\r\n */\r\n\r\n/** @typedef {import('../photoswipe.js').default} PhotoSwipe */\r\n/** @typedef {import('../photoswipe.js').PhotoSwipeOptions} PhotoSwipeOptions */\r\n/** @typedef {import('../photoswipe.js').DataSource} DataSource */\r\n/** @typedef {import('../photoswipe.js').Point} Point */\r\n/** @typedef {import('../slide/content.js').default} Content */\r\n/** @typedef {import('../core/eventable.js').PhotoSwipeEventsMap} PhotoSwipeEventsMap */\r\n/** @typedef {import('../core/eventable.js').PhotoSwipeFiltersMap} PhotoSwipeFiltersMap */\r\n\r\n/**\r\n * @template {keyof PhotoSwipeEventsMap} T\r\n * @typedef {import('../core/eventable.js').EventCallback} EventCallback\r\n */\r\n\r\n/**\r\n * PhotoSwipe Lightbox\r\n *\r\n * - If user has unsupported browser it falls back to default browser action (just opens URL)\r\n * - Binds click event to links that should open PhotoSwipe\r\n * - parses DOM strcture for PhotoSwipe (retrieves large image URLs and sizes)\r\n * - Initializes PhotoSwipe\r\n *\r\n *\r\n * Loader options use the same object as PhotoSwipe, and supports such options:\r\n *\r\n * gallery - Element | Element[] | NodeList | string selector for the gallery element\r\n * children - Element | Element[] | NodeList | string selector for the gallery children\r\n *\r\n */\r\nclass PhotoSwipeLightbox extends PhotoSwipeBase {\r\n /**\r\n * @param {PhotoSwipeOptions} [options]\r\n */\r\n constructor(options) {\r\n super();\r\n /** @type {PhotoSwipeOptions} */\r\n this.options = options || {};\r\n this._uid = 0;\r\n this.shouldOpen = false;\r\n /**\r\n * @private\r\n * @type {Content | undefined}\r\n */\r\n this._preloadedContent = undefined;\r\n\r\n this.onThumbnailsClick = this.onThumbnailsClick.bind(this);\r\n }\r\n\r\n /**\r\n * Initialize lightbox, should be called only once.\r\n * It's not included in the main constructor, so you may bind events before it.\r\n */\r\n init() {\r\n // Bind click events to each gallery\r\n getElementsFromOption(this.options.gallery, this.options.gallerySelector)\r\n .forEach((galleryElement) => {\r\n galleryElement.addEventListener('click', this.onThumbnailsClick, false);\r\n });\r\n }\r\n\r\n /**\r\n * @param {MouseEvent} e\r\n */\r\n onThumbnailsClick(e) {\r\n // Exit and allow default browser action if:\r\n if (specialKeyUsed(e) // ... if clicked with a special key (ctrl/cmd...)\r\n || window.pswp) { // ... if PhotoSwipe is already open\r\n return;\r\n }\r\n\r\n // If both clientX and clientY are 0 or not defined,\r\n // the event is likely triggered by keyboard,\r\n // so we do not pass the initialPoint\r\n //\r\n // Note that some screen readers emulate the mouse position,\r\n // so it's not the ideal way to detect them.\r\n //\r\n /** @type {Point | null} */\r\n let initialPoint = { x: e.clientX, y: e.clientY };\r\n\r\n if (!initialPoint.x && !initialPoint.y) {\r\n initialPoint = null;\r\n }\r\n\r\n let clickedIndex = this.getClickedIndex(e);\r\n clickedIndex = this.applyFilters('clickedIndex', clickedIndex, e, this);\r\n /** @type {DataSource} */\r\n const dataSource = {\r\n gallery: /** @type {HTMLElement} */ (e.currentTarget)\r\n };\r\n\r\n if (clickedIndex >= 0) {\r\n e.preventDefault();\r\n this.loadAndOpen(clickedIndex, dataSource, initialPoint);\r\n }\r\n }\r\n\r\n /**\r\n * Get index of gallery item that was clicked.\r\n *\r\n * @param {MouseEvent} e click event\r\n * @returns {number}\r\n */\r\n getClickedIndex(e) {\r\n // legacy option\r\n if (this.options.getClickedIndexFn) {\r\n return this.options.getClickedIndexFn.call(this, e);\r\n }\r\n\r\n const clickedTarget = /** @type {HTMLElement} */ (e.target);\r\n const childElements = getElementsFromOption(\r\n this.options.children,\r\n this.options.childSelector,\r\n /** @type {HTMLElement} */ (e.currentTarget)\r\n );\r\n const clickedChildIndex = childElements.findIndex(\r\n child => child === clickedTarget || child.contains(clickedTarget)\r\n );\r\n\r\n if (clickedChildIndex !== -1) {\r\n return clickedChildIndex;\r\n } else if (this.options.children || this.options.childSelector) {\r\n // click wasn't on a child element\r\n return -1;\r\n }\r\n\r\n // There is only one item (which is the gallery)\r\n return 0;\r\n }\r\n\r\n /**\r\n * Load and open PhotoSwipe\r\n *\r\n * @param {number} index\r\n * @param {DataSource} [dataSource]\r\n * @param {Point | null} [initialPoint]\r\n * @returns {boolean}\r\n */\r\n loadAndOpen(index, dataSource, initialPoint) {\r\n // Check if the gallery is already open\r\n if (window.pswp || !this.options) {\r\n return false;\r\n }\r\n\r\n // Use the first gallery element if dataSource is not provided\r\n if (!dataSource && this.options.gallery && this.options.children) {\r\n const galleryElements = getElementsFromOption(this.options.gallery);\r\n if (galleryElements[0]) {\r\n dataSource = {\r\n gallery: galleryElements[0]\r\n };\r\n }\r\n }\r\n\r\n // set initial index\r\n this.options.index = index;\r\n\r\n // define options for PhotoSwipe constructor\r\n this.options.initialPointerPos = initialPoint;\r\n\r\n this.shouldOpen = true;\r\n this.preload(index, dataSource);\r\n return true;\r\n }\r\n\r\n /**\r\n * Load the main module and the slide content by index\r\n *\r\n * @param {number} index\r\n * @param {DataSource} [dataSource]\r\n */\r\n preload(index, dataSource) {\r\n const { options } = this;\r\n\r\n if (dataSource) {\r\n options.dataSource = dataSource;\r\n }\r\n\r\n // Add the main module\r\n /** @type {Promise>[]} */\r\n const promiseArray = [];\r\n\r\n const pswpModuleType = typeof options.pswpModule;\r\n if (isPswpClass(options.pswpModule)) {\r\n promiseArray.push(Promise.resolve(/** @type {Type} */ (options.pswpModule)));\r\n } else if (pswpModuleType === 'string') {\r\n throw new Error('pswpModule as string is no longer supported');\r\n } else if (pswpModuleType === 'function') {\r\n promiseArray.push(/** @type {() => Promise>} */ (options.pswpModule)());\r\n } else {\r\n throw new Error('pswpModule is not valid');\r\n }\r\n\r\n // Add custom-defined promise, if any\r\n if (typeof options.openPromise === 'function') {\r\n // allow developers to perform some task before opening\r\n promiseArray.push(options.openPromise());\r\n }\r\n\r\n if (options.preloadFirstSlide !== false && index >= 0) {\r\n this._preloadedContent = lazyLoadSlide(index, this);\r\n }\r\n\r\n // Wait till all promises resolve and open PhotoSwipe\r\n const uid = ++this._uid;\r\n Promise.all(promiseArray).then((iterableModules) => {\r\n if (this.shouldOpen) {\r\n const mainModule = iterableModules[0];\r\n this._openPhotoswipe(mainModule, uid);\r\n }\r\n });\r\n }\r\n\r\n /**\r\n * @private\r\n * @param {Type | { default: Type }} module\r\n * @param {number} uid\r\n */\r\n _openPhotoswipe(module, uid) {\r\n // Cancel opening if UID doesn't match the current one\r\n // (if user clicked on another gallery item before current was loaded).\r\n //\r\n // Or if shouldOpen flag is set to false\r\n // (developer may modify it via public API)\r\n if (uid !== this._uid && this.shouldOpen) {\r\n return;\r\n }\r\n\r\n this.shouldOpen = false;\r\n\r\n // PhotoSwipe is already open\r\n if (window.pswp) {\r\n return;\r\n }\r\n\r\n /**\r\n * Pass data to PhotoSwipe and open init\r\n *\r\n * @type {PhotoSwipe}\r\n */\r\n const pswp = typeof module === 'object'\r\n ? new module.default(this.options) // eslint-disable-line\r\n : new module(this.options); // eslint-disable-line\r\n\r\n this.pswp = pswp;\r\n window.pswp = pswp;\r\n\r\n // map listeners from Lightbox to PhotoSwipe Core\r\n /** @type {(keyof PhotoSwipeEventsMap)[]} */\r\n (Object.keys(this._listeners)).forEach((name) => {\r\n this._listeners[name]?.forEach((fn) => {\r\n pswp.on(name, /** @type {EventCallback} */(fn));\r\n });\r\n });\r\n\r\n // same with filters\r\n /** @type {(keyof PhotoSwipeFiltersMap)[]} */\r\n (Object.keys(this._filters)).forEach((name) => {\r\n this._filters[name]?.forEach((filter) => {\r\n pswp.addFilter(name, filter.fn, filter.priority);\r\n });\r\n });\r\n\r\n if (this._preloadedContent) {\r\n pswp.contentLoader.addToCache(this._preloadedContent);\r\n this._preloadedContent = undefined;\r\n }\r\n\r\n pswp.on('destroy', () => {\r\n // clean up public variables\r\n this.pswp = undefined;\r\n delete window.pswp;\r\n });\r\n\r\n pswp.init();\r\n }\r\n\r\n /**\r\n * Unbinds all events, closes PhotoSwipe if it's open.\r\n */\r\n destroy() {\r\n this.pswp?.destroy();\r\n\r\n this.shouldOpen = false;\r\n this._listeners = {};\r\n\r\n getElementsFromOption(this.options.gallery, this.options.gallerySelector)\r\n .forEach((galleryElement) => {\r\n galleryElement.removeEventListener('click', this.onThumbnailsClick, false);\r\n });\r\n }\r\n}\r\n\r\nexport default PhotoSwipeLightbox;\r\n","import {SizedModel} from './galleries/AbstractGallery';\n\ninterface ImageRatioInfo {\n ratio: number;\n cropped: boolean;\n}\n\nexport interface RatioLimits {\n min?: number;\n max?: number;\n}\n\nexport function getNextIcon(document: Document): SVGSVGElement {\n // Here we cannot use `SVGSVGElement.innerHTML`, because it is not available in SSR.\n // So instead we use `HTMLDivElement.innerHTML`, and get the SVG inside that div.\n // see: https://github.com/fgnass/domino/blob/12a5f67136a0ac10e3fa1649b8787ba3b309e9a7/lib/Element.js#L95\n const div = document.createElement('div');\n div.innerHTML =\n '';\n\n return div.querySelector('svg')!;\n}\n\nexport function getImageRatio(model: SizedModel, ratioLimits?: RatioLimits): number {\n let ratio = Number(model.enlargedWidth) / Number(model.enlargedHeight);\n\n if (ratioLimits) {\n if (ratioLimits.min && ratio < ratioLimits.min) {\n ratio = ratioLimits.min;\n } else if (ratioLimits.max && ratio > ratioLimits.max) {\n ratio = ratioLimits.max;\n }\n }\n\n return ratio;\n}\n\nexport function getImageRatioAndIfCropped(model: SizedModel, ratioLimits?: RatioLimits): ImageRatioInfo {\n let ratio = Number(model.enlargedWidth) / Number(model.enlargedHeight);\n let cropped = false;\n\n if (ratioLimits) {\n if (ratioLimits.min && ratio < ratioLimits.min) {\n ratio = ratioLimits.min;\n cropped = true;\n } else if (ratioLimits.max && ratio > ratioLimits.max) {\n ratio = ratioLimits.max;\n cropped = true;\n }\n }\n\n return {ratio: ratio, cropped: cropped};\n}\n\n/**\n * Cleans HTML, and returns only the plain text and `
` from all eventual tags\n */\nexport function sanitizeHtml(term: string | undefined): string {\n return term ? term.replace(/<(?!\\s*br\\s*\\/?)[^>]*>/gi, '') : '';\n}\n","import {ModelAttributes} from './galleries/AbstractGallery';\nimport {sanitizeHtml} from './Utility';\n\nexport enum LabelVisibility {\n HOVER = 'hover',\n NEVER = 'never',\n ALWAYS = 'always',\n}\n\nexport declare interface ItemOptions {\n /**\n * Enables ability to zoom images in photoswipe\n */\n lightbox?: boolean;\n\n /**\n * Add a checkbox to select image\n */\n selectable?: boolean;\n\n /**\n * Activable emits 'activate' event when link is not provided. It takes place where the link used to be :\n * in caption or in image if lightbox is false\n */\n activable?: boolean;\n gap?: number;\n labelVisibility?: LabelVisibility;\n}\n\nexport type ItemActivateEventDetail = {\n event: MouseEvent | KeyboardEvent;\n item: Item;\n};\n\nexport class Item {\n /**\n * Cleaned title, used for label / button\n */\n public readonly sanitizedTitle: string;\n /**\n * Reference to the select button\n */\n private _checkbox: HTMLButtonElement | null = null;\n /**\n * Element referring the \"button\" containing the label\n */\n private figcaption: HTMLElement | null = null;\n\n /**\n *\n * @param model Contains the source data given for an item (e.g. object instance from database with id etc...)\n */\n public constructor(\n private readonly document: Document,\n private readonly options: ItemOptions,\n public readonly model: Model,\n ) {\n this.sanitizedTitle = sanitizeHtml(model.title);\n }\n\n /**\n * Actual row index in the list\n */\n private _row!: number;\n\n get row(): number {\n return this._row;\n }\n\n set row(value: number) {\n this._row = value;\n }\n\n /**\n * Computed size (real used size)\n */\n private _width!: number;\n\n get width(): number {\n return this._width;\n }\n\n set width(value: number) {\n this._width = value;\n }\n\n private _height!: number;\n\n get height(): number {\n return this._height;\n }\n\n set height(value: number) {\n this._height = value;\n }\n\n private _cropped = true;\n\n /* istanbul ignore next */\n get cropped(): boolean {\n return this._cropped;\n }\n\n set cropped(value: boolean) {\n this._cropped = value;\n }\n\n /**\n * Wherever item is selected or not\n */\n private _selected = false;\n\n /* istanbul ignore next */\n get selected(): boolean {\n return this._selected;\n }\n\n /**\n * Item root element reference (figure)\n */\n private _rootElement: HTMLElement | null = null;\n\n /* istanbul ignore next */\n get rootElement(): HTMLElement | null {\n return this._rootElement;\n }\n\n /* istanbul ignore next */\n get checkbox(): HTMLButtonElement | null {\n return this._checkbox;\n }\n\n /* istanbul ignore next */\n get enlargedWidth(): number {\n return this.model.enlargedWidth;\n }\n\n /* istanbul ignore next */\n get enlargedHeight(): number {\n return this.model.enlargedHeight;\n }\n\n /**\n * Create DOM elements according to element raw data (thumbnail and enlarged urls)\n * Also apply border-radius at this level because it never changed threw time\n *\n *\n * Base structure is always the same :\n *\n *
\n * \n *
\n *
\n *\n * But depending on settings, we can add inside
or wrap around
\n */\n public init(): HTMLElement {\n // Sources\n const figure = this.getFigure();\n const caption = this.getEmptyCaption();\n const image = this.getImage(!!caption);\n\n // Prepare contextual containers\n let root = null;\n const link = this.getEmptyLinkOrButton();\n let zoomableElement: HTMLElement | null = null;\n\n // Define and assign roles for each situation\n if (this.options.lightbox && caption && link) {\n root = figure;\n zoomableElement = image;\n link.innerHTML = this.sanitizedTitle;\n figure.appendChild(image);\n caption.appendChild(link);\n caption.classList.add('link');\n } else if (this.options.lightbox && caption && !link) {\n root = figure;\n caption.innerHTML = this.sanitizedTitle;\n figure.appendChild(image);\n zoomableElement = figure;\n } else if (this.options.lightbox && !caption && link) {\n root = figure;\n zoomableElement = figure;\n figure.appendChild(image);\n console.warn(\n 'Link or activation are ignored when lightbox is true and there is no caption because there is no element to support it',\n );\n } else if (this.options.lightbox && !caption && !link) {\n root = figure;\n zoomableElement = figure;\n figure.appendChild(image);\n } else if (!this.options.lightbox && caption && link) {\n root = figure;\n figure.appendChild(image);\n caption.appendChild(link);\n caption.classList.add('link');\n link.innerHTML = this.sanitizedTitle;\n } else if (!this.options.lightbox && caption && !link) {\n root = figure;\n figure.appendChild(image);\n caption.innerHTML = this.sanitizedTitle;\n } else if (!this.options.lightbox && !caption && link) {\n root = link;\n figure.appendChild(image);\n link.appendChild(figure);\n } else if (!this.options.lightbox && !caption && !link) {\n root = figure;\n figure.appendChild(image);\n }\n\n this._rootElement = root || figure;\n this._rootElement.setAttribute('role', 'group');\n this._rootElement.classList.add('root');\n\n const checkbox = this.getCheckbox();\n [caption, checkbox].filter(c => !!c).forEach(c => figure.appendChild(c));\n this.handleZoom(zoomableElement);\n this.style();\n\n return this._rootElement;\n }\n\n public setLabelHover(activate: boolean): void {\n const className = 'hover';\n if (activate) {\n this.options.labelVisibility = LabelVisibility.HOVER;\n this.figcaption?.classList.add(className);\n } else {\n this.options.labelVisibility = LabelVisibility.ALWAYS;\n this.figcaption?.classList.remove(className);\n }\n }\n\n /**\n * Use computed (organized) data to apply style (size and margin) to elements on DOM\n * Does not apply border-radius because is used to restyle data on browser resize, and border-radius don't change.\n */\n public style(): void {\n if (!this._rootElement) {\n return;\n }\n\n this._rootElement.style.width = String(this.width + 'px');\n this._rootElement.style.height = String(this.height + 'px');\n }\n\n private emitSelectEvent(): void {\n const event = new CustomEvent>('select', {detail: this});\n this._rootElement?.dispatchEvent(event);\n }\n\n public toggleSelect(): void {\n if (this._selected) {\n this.unselect();\n } else {\n this.select();\n }\n }\n\n private throwNotSelectableError(): void {\n if (!this.options.selectable) {\n throw Error('Gallery is not selectable');\n }\n }\n\n public select(): void {\n this.throwNotSelectableError();\n this._selected = true;\n this._rootElement?.classList.add('selected');\n this.updateAriaSelectedStatus();\n this.emitSelectEvent();\n }\n\n public unselect(): void {\n this.throwNotSelectableError();\n this._selected = false;\n this._rootElement?.classList.remove('selected');\n this.updateAriaSelectedStatus();\n this.emitSelectEvent();\n }\n\n public remove(): void {\n this._rootElement?.parentNode?.removeChild(this._rootElement);\n }\n\n private updateAriaSelectedStatus(): void {\n this._checkbox?.setAttribute('aria-checked', String(this._selected));\n this._checkbox?.setAttribute('aria-label', this._selected ? 'Unselect' : 'Select');\n }\n\n private getEmptyLinkOrButton(): HTMLElement | HTMLButtonElement | null {\n if (this.model.link) {\n const link = this.document.createElement('a');\n link.setAttribute('href', this.model.link);\n\n if (this.model.linkTarget) {\n link.setAttribute('target', this.model.linkTarget);\n }\n\n return link;\n } else if (this.options.activable) {\n const button = this.document.createElement('button');\n button.classList.add('activation');\n button.setAttribute('tabindex', '0');\n this.handleActivation(button);\n\n return button;\n }\n\n return null;\n }\n\n /**\n * Label is visible if options mention hover or always\n * @private\n */\n private showLabel(): boolean {\n let showLabel = false;\n\n const showLabelValues = [LabelVisibility.ALWAYS, LabelVisibility.HOVER];\n if (\n this.sanitizedTitle &&\n this.options.labelVisibility &&\n showLabelValues.includes(this.options.labelVisibility)\n ) {\n showLabel = true;\n }\n\n return showLabel;\n }\n\n private getFigure(): HTMLElement {\n const figure = this.document.createElement('figure');\n figure.classList.add('figure');\n figure.setAttribute('role', 'group');\n\n if (this.model.color) {\n figure.style.backgroundColor = this.model.color + '11';\n }\n\n return figure;\n }\n\n private getImage(hasCaption: boolean): HTMLImageElement {\n const image = this.document.createElement('img');\n image.setAttribute('src', this.model.thumbnailSrc);\n image.style.objectFit = this.model.objectFit || 'cover';\n image.style.objectPosition = this.model.objectPosition || 'center';\n image.classList.add('image');\n image.setAttribute('loading', 'lazy');\n image.addEventListener('load', () => this._rootElement?.classList.add('loaded'));\n\n // If alt is provided and different from title, set it on mage\n // If title, but no alt neither caption, set title as alt attribute on image\n if (this.model.alt && this.model.alt !== this.sanitizedTitle) {\n image.setAttribute('alt', this.model.alt);\n } else if (!hasCaption && this.sanitizedTitle) {\n image.setAttribute('alt', this.sanitizedTitle);\n }\n\n return image;\n }\n\n private getEmptyCaption(): HTMLElement | null {\n if (!this.showLabel()) {\n return null;\n }\n\n const caption = this.document.createElement('figcaption');\n caption.classList.add('caption');\n caption.classList.add('title');\n\n if (this.options.labelVisibility === LabelVisibility.HOVER) {\n caption.classList.add('hover');\n }\n\n this.figcaption = caption;\n return caption;\n }\n\n private getCheckbox(): HTMLButtonElement | null {\n if (!this.options.selectable) {\n return null;\n }\n\n const checkbox = this.document.createElement('button') as HTMLButtonElement;\n checkbox.tabIndex = 0;\n checkbox.classList.add('select-btn');\n checkbox.setAttribute('role', 'checkbox');\n\n const marker = this.document.createElement('div');\n marker.classList.add('marker');\n checkbox.appendChild(marker);\n\n const handleCheckboxAction = (e: Event) => {\n e.stopPropagation();\n e.preventDefault();\n this.toggleSelect();\n };\n\n checkbox.addEventListener('click', handleCheckboxAction);\n checkbox.addEventListener('keydown', e => {\n if (e.key === 'Enter' || e.key === ' ') {\n handleCheckboxAction(e);\n }\n });\n this._checkbox = checkbox;\n this.updateAriaSelectedStatus();\n\n if (this.model.selected) {\n this.select();\n } else {\n this.unselect();\n }\n\n return checkbox;\n }\n\n private handleActivation(element: HTMLElement): void {\n element.setAttribute('aria-label', 'activate item');\n const activate = (ev: MouseEvent | KeyboardEvent) => {\n const data: ItemActivateEventDetail = {item: this, event: ev};\n const activableEvent = new CustomEvent>('activate', {detail: data});\n this._rootElement?.dispatchEvent(activableEvent);\n };\n element.addEventListener('click', activate);\n element.addEventListener('keydown', e => {\n if (e.key === 'Enter' || e.key === ' ') {\n activate(e);\n }\n });\n }\n\n private handleZoom(element: HTMLElement | null): void {\n if (!element) {\n return;\n }\n\n if (element) {\n element.tabIndex = 0;\n element.setAttribute('aria-label', 'zoom');\n element.setAttribute('role', 'button');\n element.classList.add('zoomable');\n const handleZoom = () => {\n const event = new CustomEvent>('zoom', {detail: this});\n this._rootElement?.dispatchEvent(event);\n };\n\n element.addEventListener('click', handleZoom);\n element.addEventListener('keydown', e => {\n if (e.key === 'Enter' || e.key === ' ') {\n e.preventDefault();\n handleZoom();\n }\n });\n }\n }\n}\n","import {debounce, pick} from 'es-toolkit';\nimport {defaultsDeep} from 'es-toolkit/compat';\nimport PhotoSwipe, {PhotoSwipeOptions, SlideData} from 'photoswipe';\nimport PhotoSwipeLightbox from 'photoswipe/lightbox';\nimport 'photoswipe/dist/photoswipe.css';\nimport {Item, ItemActivateEventDetail, ItemOptions, LabelVisibility} from '../Item';\nimport {getNextIcon} from '../Utility';\n\nexport type ObjectFit = 'fill' | 'contain' | 'cover' | 'none' | 'scale-down' | 'inherit' | 'initial' | 'unset';\n\nexport type ObjectPosition =\n | 'center'\n | 'top'\n | 'bottom'\n | 'left'\n | 'right'\n | 'top left'\n | 'top right'\n | 'top center'\n | 'bottom left'\n | 'bottom right'\n | 'bottom center'\n | 'center left'\n | 'center right'\n | string;\n\n/**\n * A map of all possible event and the structure of their details\n */\nexport interface CustomEventDetailMap {\n activate: {item: T; event: MouseEvent | KeyboardEvent};\n 'item-added-to-dom': T;\n 'item-displayed': T;\n pagination: {offset: number; limit: number};\n select: T[];\n}\n\n/**\n * Augment the global namespace with our custom events\n * See: https://github.com/Microsoft/TypeScript/issues/28357\n */\ndeclare global {\n interface HTMLElementEventMap {\n activate: CustomEvent;\n 'item-added-to-dom': CustomEvent;\n 'item-displayed': CustomEvent;\n pagination: CustomEvent;\n select: CustomEvent;\n }\n}\n\nexport interface SizedModel {\n /**\n * Height in pixels of the enlarged version the image\n * If photoswipe is used, the size of the photoswipe enlarged image is required\n * If photoswipe is not used, any size that match the ratio is enough\n */\n enlargedWidth: number;\n\n /**\n * Width in pixels of the enlarged version the image\n * If photoswipe is used, the size of the photoswipe enlarged image is required\n * If photoswipe is not used, any size that match the ratio is enough\n */\n enlargedHeight: number;\n}\n\nexport interface ModelAttributes extends SizedModel {\n /**\n * Source link for thumbnail image\n */\n thumbnailSrc: string;\n\n /**\n * Source link for enlarged (photoswipe) image\n */\n enlargedSrc?: string;\n\n /**\n * Label of item (or button)\n */\n title?: string;\n\n /**\n * Href link\n */\n link?: string;\n\n /**\n * a href target attribute\n */\n linkTarget?: '_blank' | '_self' | '_parent' | '_top';\n\n /**\n * Hex color\n */\n color?: string;\n\n /**\n * If item is selected\n */\n selected?: boolean;\n\n /**\n * Background size, default : cover\n */\n objectFit?: ObjectFit;\n\n /**\n * Background position, default : center\n */\n objectPosition?: ObjectPosition;\n\n /**\n * Short text describing specifically the image\n */\n alt?: string;\n}\n\nexport interface GalleryOptions extends ItemOptions {\n rowsPerPage?: number;\n minRowsAtStart?: number;\n infiniteScrollOffset?: number;\n photoSwipeOptions?: PhotoSwipeOptions;\n photoSwipePluginsInitFn?: ((lighbox: PhotoSwipeLightbox) => void) | null;\n ssr?: {\n /**\n * In SSR mode, if the gallery width cannot be computed, it will fallback to this value\n */\n galleryWidth: number;\n };\n}\n\nexport abstract class AbstractGallery {\n /**\n * Default options\n */\n protected options: Required = {\n gap: 3,\n rowsPerPage: 0,\n labelVisibility: LabelVisibility.HOVER,\n lightbox: false,\n minRowsAtStart: 2,\n selectable: false,\n activable: false,\n infiniteScrollOffset: 0,\n photoSwipeOptions: {\n loop: false,\n },\n photoSwipePluginsInitFn: null,\n ssr: {\n galleryWidth: 480,\n },\n };\n\n /**\n * Images wrapper container\n */\n protected bodyElementRef: HTMLElement;\n\n /**\n * Items for which container has been added to dom, but image has not been queries yet\n */\n protected scrollBufferedItems: Item[] = [];\n\n /**\n * Debounce function\n * Runs a small delay after last image has been added to dom\n * When it runs, images are loaded (appear with fade) and more images are queries to preserve a buffer of\n * out-of-dom items\n */\n protected flushBufferedItems: () => void;\n\n /**\n * Number of items to query on buffer flushing\n */\n protected requiredItems = 0;\n protected readonly document: Document;\n /**\n * PhotoSwipe Lightbox object\n */\n protected psLightbox: PhotoSwipeLightbox | null = null;\n /**\n * Used to test the scroll direction\n * Avoid to load more images when scrolling up\n */\n private old_scroll_top = 0;\n /**\n * Stores page index that have been emitted\n * Keeps a log of pages already asked to prevent to ask them multiple times\n */\n private requestedIndexesLog: number[] = [];\n /**\n * Reference to next button element\n */\n private nextButton: HTMLElement;\n\n /**\n *\n * @param elementRef\n * @param options\n * @param scrollElementRef\n */\n constructor(\n protected elementRef: HTMLElement,\n options: GalleryOptions,\n protected scrollElementRef?: HTMLElement | null,\n ) {\n this.document = this.elementRef.ownerDocument;\n this.options = defaultsDeep(options, this.options);\n\n // After having finished to add items to dom, show images inside containers and emit updated pagination\n this.flushBufferedItems = debounce(() => {\n this.scrollBufferedItems.forEach(item => {\n this.dispatchEvent('item-displayed', item);\n });\n\n this.scrollBufferedItems = [];\n\n if (!this.requiredItems) {\n return;\n }\n\n // Each time a pagination event is emitted, the offset is logged and then verified to be sure to not ask it\n // twice. That would cause duplicated entries and probably empty buffer with smaller pages. That could\n // cause infinite loading until the end of the gallery\n if (this.requestedIndexesLog.indexOf(this.collection.length) < 0) {\n const offset = this.collection.length;\n this.dispatchEvent('pagination', {offset, limit: this.requiredItems});\n this.requestedIndexesLog.push(offset);\n this.requiredItems = 0;\n }\n }, 500);\n\n this.elementRef.classList.add('natural-gallery-js');\n this.elementRef.classList.add(this.getFormatName());\n\n // Next button\n this.nextButton = this.document.createElement('button');\n this.nextButton.classList.add('natural-gallery-next');\n this.nextButton.appendChild(getNextIcon(this.document));\n this.nextButton.setAttribute('aria-label', 'next page');\n this.nextButton.style.display = 'none';\n this.nextButton.addEventListener('click', e => {\n e.preventDefault();\n this.onPageAdd();\n });\n\n this.bodyElementRef = this.document.createElement('div');\n this.bodyElementRef.classList.add('natural-gallery-body');\n this.extendToFreeViewport();\n\n // Iframe\n const iframe = this.document.createElement('iframe');\n this.elementRef.appendChild(iframe);\n\n // Resize debounce\n const resizeDebounceDuration = 500;\n const startResize = debounce(() => this.startResize(), resizeDebounceDuration, {edges: ['leading']});\n const endResize = debounce(() => this.endResize(), resizeDebounceDuration);\n iframe.contentWindow?.addEventListener('resize', () => {\n endResize();\n startResize();\n });\n\n this.elementRef.appendChild(this.bodyElementRef);\n this.elementRef.appendChild(this.nextButton);\n\n if (!this.options.rowsPerPage) {\n this.bindScroll(this.scrollElementRef || this.document);\n }\n\n this.requestItems();\n\n if (this.options.lightbox) {\n this.photoSwipeInit();\n }\n }\n\n /**\n * Get PhotoSwipe Lightbox\n */\n /* istanbul ignore next */\n get photoSwipe(): PhotoSwipeLightbox | null {\n return this.psLightbox;\n }\n\n /**\n * Get currently selected PhotoSwipe image\n */\n /* istanbul ignore next */\n get photoSwipeCurrentItem(): Model | null {\n return this.collection[this.psLightbox?.pswp?.currIndex || 0]?.model || null;\n }\n\n /**\n * Complete collection of images\n * @type {Array}\n */\n protected _collection: Item[] = [];\n\n get collection(): Item[] {\n return this._collection;\n }\n\n /**\n * Partial set of items that represent the visible items\n * @type {Item[]}\n * @private\n */\n protected _domCollection: Item[] = [];\n\n get domCollection(): Item[] {\n return this._domCollection;\n }\n\n get selectedItems(): Item[] {\n return this.collection.filter(item => item.selected);\n }\n\n get width(): number {\n // elementRef.clientWidth rounds ceil, we need round floor to grant computing fits in the available space\n // elementRef.getBoundingClientRect().width doesn't round, so we can round floor.\n return Math.floor(this.elementRef.getBoundingClientRect?.().width ?? this.options.ssr.galleryWidth);\n }\n\n public addItemToPhotoSwipeCollection(item: Item) {\n const photoSwipeId = this.domCollection.length - 1;\n\n /* istanbul ignore next */\n item.rootElement?.addEventListener('zoom', () => {\n this.psLightbox?.loadAndOpen(photoSwipeId);\n });\n }\n\n /**\n * Add items to collection\n * Transform given list of models into inner Items\n * @param models list of models\n */\n public addItems(models: Model[]): void {\n // Display newly added images if it's the first addition or if all images are already shown\n const addToDom = this.collection.length === this.domCollection.length;\n const collectionSize = this.collection.length;\n\n // Complete collection\n models.forEach((model: Model) => {\n const itemOptions = pick(this.options, ['lightbox', 'selectable', 'activable', 'gap', 'labelVisibility']);\n const item = new Item(this.document, itemOptions, model);\n this._collection.push(item);\n });\n\n if (addToDom && collectionSize === 0) {\n // First addition : collection size is 0\n this.onPageAdd();\n } else if (addToDom && collectionSize > 0) {\n // Gallery collection completion (after first addition) : collection size > 0\n this.onScroll();\n }\n }\n\n public setLabelHover(activate: boolean): void {\n this.options.labelVisibility = activate ? LabelVisibility.HOVER : LabelVisibility.ALWAYS;\n this.collection.forEach(item => {\n item.setLabelHover(activate);\n });\n }\n\n /**\n * Select all items given to the gallery, whenever they are in the DOM or not\n */\n public selectCollection(): Item[] {\n return this.selectItems(this.collection);\n }\n\n /**\n * Select all items in the DOM\n * Ignores buffered items\n */\n public selectDomCollection(): Item[] {\n return this.selectItems(this.domCollection);\n }\n\n private selectItems(collection: Item[]): Item[] {\n if (!this.options.selectable) {\n throw Error('Gallery is not selectable');\n }\n\n collection.forEach(item => item.select());\n return this.selectedItems;\n }\n\n /**\n * Unselect all selected elements\n */\n public unselectAllItems(): void {\n this.domCollection.forEach(item => item.unselect());\n }\n\n /**\n * Allows to use the same approach and method name to listen as gallery events on DOM or on javascript gallery\n * object\n *\n * Gallery requests items when it's instantiated. But user may subscribe after creation, so we need to request\n * again if user subscribes by this function.\n *\n * @param name\n * @param callback\n * @param options An object that specifies characteristics about the event listener. The available options are, see\n * addEventListener official documentation\n */\n public addEventListener>(\n name: K,\n callback: (evt: CustomEvent[K]>) => void,\n options?: boolean | AddEventListenerOptions,\n ): void;\n\n public addEventListener(\n name: keyof CustomEventDetailMap,\n callback: (evt: CustomEvent[keyof CustomEventDetailMap]>) => void,\n options?: boolean | AddEventListenerOptions,\n ): void {\n this.elementRef.addEventListener(name, callback, options);\n\n if (name === 'pagination') {\n this.requestItems();\n }\n }\n\n /**\n * Public api for empty function\n * Emits a pagination event\n */\n public clear(): void {\n this.empty();\n this.requestItems();\n }\n\n /**\n * Return copy of options to prevent modification\n */\n public getOptions(): GalleryOptions {\n return this.options;\n }\n\n /**\n * Override current collection\n * @param {Item[]} items\n */\n public setItems(items: Model[]): void {\n this.empty();\n this.addItems(items);\n }\n\n /**\n *\n */\n public abstract organizeItems(items: Item[], fromRow?: number, toRow?: number): void;\n\n /**\n * Initializes PhotoSwipe\n */\n protected photoSwipeInit() {\n this.psLightbox = new PhotoSwipeLightbox({\n ...this.options.photoSwipeOptions,\n pswpModule: PhotoSwipe,\n });\n\n /* istanbul ignore next */\n this.psLightbox.addFilter('numItems', (): number => {\n return this.domCollection.length;\n });\n\n /* istanbul ignore next */\n this.psLightbox.addFilter('itemData', (_itemData: SlideData, index: number): SlideData => {\n const item = this.collection[index];\n return {\n id: index,\n src: item.model.enlargedSrc,\n w: item.model.enlargedWidth,\n h: item.model.enlargedHeight,\n msrc: item.model.thumbnailSrc,\n element: item.rootElement!,\n thumbCropped: item.cropped,\n alt: item.sanitizedTitle,\n };\n });\n\n /* istanbul ignore next */\n if (this.options.photoSwipePluginsInitFn) {\n this.options.photoSwipePluginsInitFn(this.psLightbox);\n }\n\n this.psLightbox.init();\n\n // Loading one more page when going to next image\n /* istanbul ignore next */\n this.psLightbox.on('change', () => {\n // Positive delta means next slide.\n // If we go next slide, and current index is out of visible collection bound, load more items\n if (this.psLightbox?.pswp && this.psLightbox.pswp.currIndex > this.domCollection.length - 10) {\n this.onPageAdd();\n }\n });\n\n // With accessibility :focus usage, figures tend to stay sticky on focused state. This returns to wanted behavior\n /* istanbul ignore next */\n this.psLightbox.on('destroy', () => {\n (this.document.activeElement as HTMLElement)?.blur();\n });\n }\n\n /**\n *\n */\n protected abstract getEstimatedColumnsPerRow(): number;\n\n /**\n * AbstractRowGallery + Masonry\n */\n protected abstract onScroll(): void;\n\n /**\n * AbstractRowGallery + Masonry\n */\n protected abstract onPageAdd(): void;\n\n protected abstract getFormatName(): string;\n\n /**\n * Return number of rows to show per page to fill the empty space until the bottom of the screen\n * Should grant all the space is used or more, but not less.\n * @returns {number}\n */\n protected abstract getEstimatedRowsPerPage(): number;\n\n /**\n * Fire pagination event\n * Information provided in the event allows to retrieve items from the server using given data :\n * \"offset\" and \"limit\" that have the same semantic that respective attributes in mySQL.\n *\n * The gallery asks for items it needs, including some buffer items that are not displayed when given but are\n * available to be added immediately to DOM when user scrolls.\n *\n */\n protected requestItems(): void {\n const estimatedPerRow = this.getEstimatedColumnsPerRow();\n\n // +1 because we have to get more than what is used under onPageAdd().\n // Without +1 all items are always added to DOM and gallery will loop load until end of collection\n const limit = estimatedPerRow * this.getRowsPerPage() + 1;\n this.dispatchEvent('pagination', {offset: this.collection.length, limit: limit});\n }\n\n /**\n * Returns option.rowsPerPage is specified.\n * If not returns the estimated number of rows to fill the rest of the vertical space in the screen\n * @returns {number}\n */\n protected getRowsPerPage(): number {\n if (this.options.rowsPerPage > 0) {\n return this.options.rowsPerPage;\n }\n\n const estimation = this.getEstimatedRowsPerPage();\n return estimation < this.options.minRowsAtStart ? this.options.minRowsAtStart : estimation;\n }\n\n /**\n * Add given item to DOM and to domCollection\n * @param {Item} item\n * @param destination\n */\n protected addItemToDOM(item: Item, destination: HTMLElement = this.bodyElementRef): void {\n this.domCollection.push(item);\n\n destination.appendChild(item.init());\n\n this.scrollBufferedItems.push(item);\n this.requiredItems++;\n this.dispatchEvent('item-added-to-dom', item);\n\n item.rootElement?.addEventListener('select', () => {\n this.dispatchEvent(\n 'select',\n this.domCollection.filter(i => i.selected),\n );\n });\n\n // When activate (if activate event is given in options)\n item.rootElement?.addEventListener('activate', (ev: CustomEvent>) => {\n this.dispatchEvent('activate', {item, event: ev.detail.event});\n });\n\n if (this.options.lightbox) {\n this.addItemToPhotoSwipeCollection(item);\n }\n }\n\n protected updateNextButtonVisibility(): void {\n if (this.domCollection.length === this.collection.length) {\n this.nextButton.style.display = 'none';\n } else {\n this.nextButton.style.display = 'block';\n }\n }\n\n /**\n * If infinite scroll (no option.rowsPerPage provided), a minimum height is setted to force gallery to overflow\n * from viewport. This activates the scroll before adding items to dom. This prevents the scroll to fire new resize\n * event and recompute all gallery twice on start.\n */\n protected extendToFreeViewport(): void {\n if (this.options.rowsPerPage) {\n return;\n }\n\n this.elementRef.style.minHeight = this.getGalleryVisibleHeight() + 10 + 'px';\n }\n\n /**\n * Space between the top of the gallery wrapper (parent of gallery root elementRef) and the bottom of the window\n */\n protected getGalleryVisibleHeight(): number {\n if (this.document.defaultView) {\n return this.document.defaultView.innerHeight - this.elementRef.offsetTop;\n }\n\n return 0;\n }\n\n protected startResize(): void {\n this.bodyElementRef?.classList.add('resizing');\n }\n\n protected endResize(): void {\n this.bodyElementRef?.classList.remove('resizing');\n }\n\n protected dispatchEvent>>(\n name: K,\n data: CustomEventDetailMap>[K],\n ): void {\n try {\n const event = new CustomEvent(name, {detail: data});\n this.elementRef.dispatchEvent(event);\n } catch {\n // silent fail\n }\n }\n\n /**\n * Effectively empty gallery, and should prepare container to receive new items\n */\n protected empty(): void {\n this.bodyElementRef.innerHTML = '';\n this.requestedIndexesLog.length = 0;\n this._domCollection = [];\n this._collection = [];\n }\n\n /**\n * Listen to scroll event and manages rows additions for lazy load\n * @param {HTMLElement | Document} element\n */\n private bindScroll(element: HTMLElement | Document) {\n const scrollable = element;\n const wrapper: HTMLElement = element instanceof Document ? element.documentElement : element;\n\n const startScroll = debounce(() => this.elementRef.classList.add('scrolling'), 100, {edges: ['leading']});\n const endScroll = debounce(() => this.elementRef.classList.remove('scrolling'), 150);\n\n scrollable.addEventListener('scroll', () => {\n const endOfGalleryAt =\n this.elementRef.offsetTop + this.elementRef.offsetHeight + this.options.infiniteScrollOffset;\n\n // Calculate scroll position and delta\n const current_scroll_top = wrapper.scrollTop - (wrapper.clientTop || 0);\n const wrapperHeight = wrapper.clientHeight;\n const scroll_delta = current_scroll_top - this.old_scroll_top;\n\n // Only apply scrolling class if there's actual scroll position change\n // This prevents the class from being applied when scroll events are triggered\n // without actual scrolling (e.g., on mousehover in some browsers/zoom levels)\n if (Math.abs(scroll_delta) > 0) {\n startScroll();\n endScroll();\n }\n\n this.old_scroll_top = current_scroll_top;\n\n // \"enableMoreLoading\" is a setting coming from the BE bloking / enabling dynamic loading of thumbnail\n if (scroll_delta > 0 && current_scroll_top + wrapperHeight >= endOfGalleryAt) {\n // When scrolling only add a row at once\n this.onScroll();\n }\n });\n }\n\n get rootElement(): HTMLElement {\n return this.elementRef;\n }\n\n get bodyElement(): HTMLElement {\n return this.bodyElementRef;\n }\n}\n","import {AbstractGallery, GalleryOptions, ModelAttributes} from './AbstractGallery';\n\nexport abstract class AbstractRowGallery<\n Model extends ModelAttributes = ModelAttributes,\n> extends AbstractGallery {\n protected constructor(\n protected elementRef: HTMLElement,\n options: GalleryOptions,\n protected scrollElementRef?: HTMLElement | null,\n ) {\n super(elementRef, options, scrollElementRef);\n this.bodyElementRef!.style.rowGap = this.options.gap + 'px';\n }\n\n protected onScroll(): void {\n this.addRows(1);\n }\n\n protected onPageAdd(): void {\n this.addRows(this.getRowsPerPage());\n }\n\n /**\n * Add given number of rows to DOM\n * @param rows\n */\n protected addRows(rows: number): void {\n const nbVisibleImages = this.domCollection.length;\n\n // Next row to add (first invisible row)\n const nextRow = this.domCollection.length ? this.domCollection[nbVisibleImages - 1].row + 1 : 0;\n const lastWantedRow = nextRow + rows - 1;\n\n // Compute size only for elements we're going to add\n const bufferedItems = this.collection.slice(nbVisibleImages);\n this.organizeItems(bufferedItems, nextRow, lastWantedRow);\n\n const itemsToAdd = bufferedItems.filter(i => i.row <= lastWantedRow);\n itemsToAdd.forEach(i => this.addItemToDOM(i));\n\n this.flushBufferedItems();\n this.updateNextButtonVisibility();\n }\n\n protected endResize(): void {\n super.endResize();\n\n if (!this.domCollection.length) {\n return;\n }\n\n // Compute with new width. Rows indexes may have changed\n this.organizeItems(this.domCollection);\n }\n}\n","import {Item} from '../Item';\nimport {getImageRatio, getImageRatioAndIfCropped, RatioLimits} from '../Utility';\nimport {GalleryOptions, ModelAttributes, SizedModel} from './AbstractGallery';\nimport {AbstractRowGallery} from './AbstractRowGallery';\n\nexport interface NaturalGalleryOptions extends GalleryOptions {\n rowHeight: number;\n ratioLimit?: RatioLimits;\n}\n\nexport class Natural extends AbstractRowGallery {\n /**\n * Options after having been defaulted\n */\n declare protected options: Required;\n\n constructor(elementRef: HTMLElement, options: NaturalGalleryOptions, scrollElementRef?: HTMLElement | null) {\n super(elementRef, options, scrollElementRef);\n if (!options.rowHeight || options.rowHeight <= 0) {\n throw new Error('Option.rowHeight must be positive');\n }\n }\n\n public static organizeItems(\n gallery: Natural,\n items: Item[],\n fromRow = 0,\n toRow: number | null = null,\n currentRow: number | null = null,\n ): void {\n if (!currentRow) {\n currentRow = fromRow ? fromRow : 0;\n }\n\n const options = gallery.options;\n\n for (let chunkSize = 1; chunkSize <= items.length; chunkSize++) {\n const chunk = items.slice(0, chunkSize);\n const rowWidth = this.getRowWidth(\n chunk.map(c => c.model),\n options.rowHeight,\n options.gap,\n options.ratioLimit,\n );\n\n if (rowWidth >= gallery.width) {\n // if end of row\n\n this.computeSizes(chunk, gallery.width, options.gap, currentRow, null, options.ratioLimit);\n\n const nextRow = currentRow + 1;\n if (toRow === null || nextRow <= toRow) {\n Natural.organizeItems(gallery, items.slice(chunkSize), fromRow, toRow, nextRow);\n }\n\n break;\n } else if (chunkSize === items.length) {\n // if end of list\n // the width is not fixed as we have not enough items\n // size of images are indexed on max row height.\n this.computeSizes(chunk, null, options.gap, currentRow, options.rowHeight, options.ratioLimit);\n break;\n }\n }\n }\n\n /**\n * Compute sizes for given images to fit in given row width\n * Items are updated\n */\n public static computeSizes(\n chunk: Item[],\n containerWidth: number | null,\n margin: number,\n row: number,\n maxRowHeight: number | null = null,\n ratioLimits?: RatioLimits,\n ): void {\n const chunkModels = chunk.map(c => c.model);\n const rowHeight = containerWidth\n ? this.getRowHeight(chunkModels, containerWidth, margin, ratioLimits)\n : (maxRowHeight ?? 0);\n const rowWidth = this.getRowWidth(chunkModels, rowHeight, margin, ratioLimits);\n\n // Overflowed pixels\n const apportion = (rowWidth - (containerWidth ?? 0)) / chunk.length;\n const excess = containerWidth ? apportion : 0;\n let decimals = 0;\n\n for (let i = 0; i < chunk.length; i++) {\n const item = chunk[i];\n const {ratio, cropped} = getImageRatioAndIfCropped(item.model, ratioLimits);\n let width = ratio * rowHeight - excess;\n decimals += width - Math.floor(width);\n width = Math.floor(width);\n\n if (decimals >= 1 || (i === chunk.length - 1 && Math.round(decimals) === 1)) {\n width++;\n decimals--;\n }\n\n item.width = width;\n item.height = Math.floor(rowHeight);\n item.cropped = cropped;\n item.row = row;\n item.style();\n }\n }\n\n public static getRowWidth(\n models: SizedModel[],\n maxRowHeight: number,\n margin: number,\n ratioLimits?: RatioLimits,\n ): number {\n return margin * (models.length - 1) + this.getRatios(models, ratioLimits) * maxRowHeight;\n }\n\n public static getRowHeight(\n models: SizedModel[],\n containerWidth: number,\n margin: number,\n ratioLimits?: RatioLimits,\n ): number {\n return (containerWidth - margin * (models.length - 1)) / this.getRatios(models, ratioLimits);\n }\n\n /**\n * Return the ratio format of models as if they were a single image\n */\n public static getRatios(models: SizedModel[], ratioLimits?: RatioLimits): number {\n return models.reduce((total, model) => total + getImageRatio(model, ratioLimits), 0);\n }\n\n public addRows(rows: number): void {\n this.completeLastRow();\n super.addRows(rows);\n }\n\n public organizeItems(items: Item[], fromRow?: number, toRow?: number): void {\n Natural.organizeItems(this, items, fromRow, toRow);\n }\n\n protected getFormatName(): string {\n return 'format-natural';\n }\n\n protected endResize(): void {\n super.endResize();\n this.completeLastRow();\n this.flushBufferedItems();\n }\n\n protected getEstimatedColumnsPerRow(): number {\n let ratio = 1;\n\n // Better prediction using ratio if provided\n if (this.options.ratioLimit && this.options.ratioLimit.min) {\n ratio = this.options.ratioLimit.min;\n }\n\n return Math.ceil(((1 / ratio) * this.width + this.options.gap) / (this.options.rowHeight + this.options.gap));\n }\n\n protected getEstimatedRowsPerPage(): number {\n return Math.ceil(this.getGalleryVisibleHeight() / (this.options.rowHeight + this.options.gap)) + 1;\n }\n\n private completeLastRow(): void {\n if (!this.domCollection.length) {\n return;\n }\n\n // Get last row number\n const lastVisibleRow = this.domCollection[this.domCollection.length - 1].row;\n\n // Get number of items in that last row\n const visibleItemsInLastRow = this.domCollection.filter(i => i.row === lastVisibleRow).length;\n\n // Get a list from first item of last row until end of collection\n const collectionFromLastVisibleRow = this.collection.slice(this.domCollection.length - visibleItemsInLastRow);\n this.organizeItems(\n collectionFromLastVisibleRow,\n collectionFromLastVisibleRow[0].row,\n collectionFromLastVisibleRow[0].row,\n );\n const itemsToAdd = collectionFromLastVisibleRow\n .slice(visibleItemsInLastRow)\n .filter(i => i.row <= collectionFromLastVisibleRow[0].row);\n\n itemsToAdd.forEach(i => this.addItemToDOM(i));\n }\n}\n","import {Item} from './Item';\nimport {ModelAttributes} from './galleries/AbstractGallery';\n\nexport declare interface ColumnOptions {\n width: number;\n gap: number;\n}\n\nexport class Column {\n private readonly collection: Item[] = [];\n\n private readonly _elementRef: HTMLElement;\n\n public constructor(\n document: Document,\n private options: ColumnOptions,\n ) {\n this._elementRef = document.createElement('div');\n this._elementRef.classList.add('column');\n this._elementRef.style.width = this.options.width + 'px';\n this._elementRef.style.gap = this.options.gap + 'px';\n }\n\n get height(): number {\n return this._elementRef.offsetHeight;\n }\n\n get elementRef(): HTMLElement {\n return this._elementRef;\n }\n\n public addItem(item: Item): void {\n this.collection.push(item);\n }\n}\n","import {Column} from '../Column';\nimport {Item} from '../Item';\nimport {getImageRatioAndIfCropped, RatioLimits} from '../Utility';\nimport {AbstractGallery, GalleryOptions, ModelAttributes} from './AbstractGallery';\n\nexport interface MasonryGalleryOptions extends GalleryOptions {\n columnWidth: number;\n ratioLimit?: RatioLimits;\n}\n\nexport class Masonry extends AbstractGallery {\n /**\n * Options after having been defaulted\n */\n declare protected options: Required;\n\n /**\n * Regroup the list of columns\n */\n protected columns: Column[] = [];\n\n constructor(elementRef: HTMLElement, options: MasonryGalleryOptions, scrollElementRef?: HTMLElement | null) {\n super(elementRef, options, scrollElementRef);\n\n if (!options.columnWidth || options.columnWidth <= 0) {\n throw new Error('Option.columnWidth must be positive');\n }\n\n this.addColumns();\n\n /**\n * Setup scroll detection to prevent empty zones due to different heights\n */\n if (!this.options.infiniteScrollOffset) {\n let ratio = 0.5; // Portrait format to maximize estimated height\n\n // Better prediction using ratio if provided\n if (this.options.ratioLimit && this.options.ratioLimit.min) {\n ratio = this.options.ratioLimit.min;\n }\n\n const columnWidth = this.getColumnWidth();\n this.options.infiniteScrollOffset = (-1 * columnWidth) / ratio;\n }\n }\n\n /**\n * Compute sides with 1:1 ratio\n */\n public static organizeItems(\n gallery: Masonry,\n items: Item[],\n fromIndex = 0,\n toIndex: number | null = null,\n ): void {\n const itemsPerRow = gallery.getEstimatedColumnsPerRow();\n\n // Compute columnWidth of pictures\n const columnWidth = gallery.getColumnWidth();\n\n let lastIndex = toIndex ? itemsPerRow * (toIndex - fromIndex + 1) : items.length;\n lastIndex = lastIndex > items.length ? items.length : lastIndex;\n\n for (let i = 0; i < lastIndex; i++) {\n const item = items[i];\n const {ratio, cropped} = getImageRatioAndIfCropped(item.model, gallery.options.ratioLimit);\n\n item.width = Math.floor(columnWidth);\n item.height = item.width / ratio;\n item.cropped = cropped;\n item.style(); // todo : externalise to split dom manipulation and logic computing\n }\n }\n\n public organizeItems(items: Item[], fromRow?: number, toRow?: number): void {\n Masonry.organizeItems(this, items, fromRow, toRow);\n }\n\n protected onScroll(): void {\n this.addUntilFill();\n }\n\n protected onPageAdd(): void {\n this.addUntilFill();\n }\n\n protected getFormatName(): string {\n return 'format-masonry';\n }\n\n protected getEstimatedColumnsPerRow(): number {\n return Math.ceil((this.width - this.options.gap) / (this.options.columnWidth + this.options.gap));\n }\n\n protected getEstimatedRowsPerPage(): number {\n let ratio = 1.75; // ~16/9 - landscape format to minimum the height and maximize the prediction of the number of items\n\n // Better prediction using ratio if provided\n if (this.options.ratioLimit && this.options.ratioLimit.max) {\n ratio = this.options.ratioLimit.max;\n }\n\n const columnWidth = this.getColumnWidth();\n const estimatedImageHeight = columnWidth / ratio;\n return Math.ceil(this.getGalleryVisibleHeight() / estimatedImageHeight);\n }\n\n /**\n * Use current gallery height as reference. To fill free space it add images until the gallery height changes, then are one more row\n */\n protected addUntilFill(): void {\n do {\n this.addItemsToDom(1);\n } while (this.viewportIsNotFilled() && this.domCollection.length < this.collection.length);\n }\n\n protected addItemToDOM(item: Item): void {\n const shortestColumn = this.getShortestColumn();\n shortestColumn.addItem(item);\n super.addItemToDOM(item, shortestColumn.elementRef);\n }\n\n protected endResize(): void {\n super.endResize();\n\n if (!this.domCollection.length) {\n return;\n }\n\n // Compute with new width. Rows indexes may have changed\n this.domCollection.length = 0;\n this.addColumns();\n this.addUntilFill();\n }\n\n protected addColumns(): void {\n this.bodyElementRef.innerHTML = '';\n this.columns = [];\n const columnWidth = this.getColumnWidth();\n for (let i = 0; i < this.getEstimatedColumnsPerRow(); i++) {\n const columnRef = new Column(this.document, {width: columnWidth, gap: this.options.gap});\n this.columns.push(columnRef);\n this.bodyElementRef.appendChild(columnRef.elementRef);\n }\n }\n\n protected empty(): void {\n super.empty();\n this.addColumns();\n }\n\n /**\n * Returns true if at least one column doesn't overflow on the bottom of the viewport\n */\n private viewportIsNotFilled(): boolean {\n return this.columns.some(\n c => c.elementRef.getBoundingClientRect().bottom < this.document.documentElement.clientHeight,\n );\n }\n\n private addItemsToDom(nbItems: number) {\n const nbVisibleImages = this.domCollection.length;\n\n // Next row to add (first invisible row)\n const firstIndex = this.domCollection.length ? nbVisibleImages : 0;\n const lastWantedIndex = firstIndex + nbItems - 1;\n\n // Compute size only for elements we're going to add\n this.organizeItems(this.collection.slice(nbVisibleImages), firstIndex, lastWantedIndex);\n\n for (let i = nbVisibleImages; i < this.collection.length; i++) {\n const item = this.collection[i];\n if (i <= lastWantedIndex) {\n this.addItemToDOM(item);\n } else {\n break;\n }\n }\n\n this.flushBufferedItems();\n this.updateNextButtonVisibility();\n }\n\n /**\n * Return square side size\n */\n private getColumnWidth(): number {\n const itemsPerRow = this.getEstimatedColumnsPerRow();\n return Math.floor((this.width - (itemsPerRow - 1) * this.options.gap) / itemsPerRow);\n }\n\n private getShortestColumn(): Column {\n return this.columns.reduce((shortestColumn, column) => {\n if (!shortestColumn) {\n return column;\n }\n\n return column.height < shortestColumn.height ? column : shortestColumn;\n });\n }\n}\n","import {Item} from '../Item';\nimport {GalleryOptions, ModelAttributes} from './AbstractGallery';\nimport {AbstractRowGallery} from './AbstractRowGallery';\n\nexport interface SquareGalleryOptions extends GalleryOptions {\n itemsPerRow: number;\n}\n\nexport class Square extends AbstractRowGallery {\n /**\n * Options after having been defaulted\n */\n declare protected options: Required;\n\n constructor(elementRef: HTMLElement, options: SquareGalleryOptions, scrollElementRef?: HTMLElement | null) {\n super(elementRef, options, scrollElementRef);\n\n if (!options.itemsPerRow || options.itemsPerRow <= 0) {\n throw new Error('Option.itemsPerRow must be positive');\n }\n }\n\n /**\n * Compute sides with 1:1 ratio\n */\n public static organizeItems(\n gallery: Square,\n items: Item[],\n firstRowIndex = 0,\n toRow: number | null = null,\n ): void {\n const sideSize = gallery.getItemSideSize();\n let lastIndex = toRow ? gallery.options.itemsPerRow * (toRow - firstRowIndex + 1) : items.length;\n lastIndex = lastIndex > items.length ? items.length : lastIndex;\n\n for (let i = 0; i < lastIndex; i++) {\n const item = items[i];\n item.width = Math.floor(sideSize);\n item.height = Math.floor(sideSize);\n item.cropped = true;\n item.row = Math.floor(i / gallery.options.itemsPerRow) + firstRowIndex;\n item.style();\n }\n }\n\n public organizeItems(items: Item[], fromRow?: number, toRow?: number): void {\n Square.organizeItems(this, items, fromRow, toRow);\n }\n\n protected getEstimatedColumnsPerRow(): number {\n return this.options.itemsPerRow;\n }\n\n protected getEstimatedRowsPerPage(): number {\n return Math.ceil(this.getGalleryVisibleHeight() / this.getItemSideSize());\n }\n\n /**\n * Return square side size\n */\n protected getItemSideSize(): number {\n const itemsPerRow = this.getEstimatedColumnsPerRow();\n return (this.width - (itemsPerRow - 1) * this.options.gap) / itemsPerRow;\n }\n\n protected getFormatName(): string {\n return 'format-square';\n 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\ No newline at end of file diff --git a/src/js/galleries/AbstractGallery.ts b/src/js/galleries/AbstractGallery.ts index c26971b..a24b677 100644 --- a/src/js/galleries/AbstractGallery.ts +++ b/src/js/galleries/AbstractGallery.ts @@ -667,20 +667,26 @@ export abstract class AbstractGallery this.elementRef.classList.add('scrolling'), 300, {edges: ['leading']}); - const endScroll = debounce(() => this.elementRef.classList.remove('scrolling'), 300); + const startScroll = debounce(() => this.elementRef.classList.add('scrolling'), 100, {edges: ['leading']}); + const endScroll = debounce(() => this.elementRef.classList.remove('scrolling'), 150); scrollable.addEventListener('scroll', () => { - startScroll(); - endScroll(); - const endOfGalleryAt = this.elementRef.offsetTop + this.elementRef.offsetHeight + this.options.infiniteScrollOffset; - // Avoid to expand gallery if we are scrolling up + // Calculate scroll position and delta const current_scroll_top = wrapper.scrollTop - (wrapper.clientTop || 0); const wrapperHeight = wrapper.clientHeight; const scroll_delta = current_scroll_top - this.old_scroll_top; + + // Only apply scrolling class if there's actual scroll position change + // This prevents the class from being applied when scroll events are triggered + // without actual scrolling (e.g., on mousehover in some browsers/zoom levels) + if (Math.abs(scroll_delta) > 0) { + startScroll(); + endScroll(); + } + this.old_scroll_top = current_scroll_top; // "enableMoreLoading" is a setting coming from the BE bloking / enabling dynamic loading of thumbnail diff --git a/tests/e2e/natural.spec.ts b/tests/e2e/natural.spec.ts index 9eb480a..aac4cb1 100644 --- a/tests/e2e/natural.spec.ts +++ b/tests/e2e/natural.spec.ts @@ -34,4 +34,66 @@ test.describe('Natural', () => { await setup.page.waitForTimeout(600); // wait debounce from gallery await expect(countItems(setup.page)).toHaveCount(17); }); + + test('should not disappear on hover at different zoom levels (issue #101)', async () => { + // Test the specific conditions mentioned in issue #101: + // Gallery disappearing on hover at 75% zoom levels and specific window sizes + + // Set up conditions similar to issue #101 report + await setup.page.setViewportSize({width: 1024, height: 768}); + + // Test at 75% zoom level (mentioned in issue #101) + await setup.page.evaluate(() => { + document.body.style.zoom = '0.75'; + }); + + // Wait for gallery to render + await expect(countItems(setup.page)).toHaveCount(9); + + // Find a zoomable image to hover over + const firstImage = setup.page.locator('.figure .image').first(); + await expect(firstImage).toBeVisible(); + + // Check that the gallery is initially visible (not in resizing state) + const galleryBody = setup.page.locator('.natural-gallery-js'); + const hasResizingClass = await galleryBody.evaluate(el => el.classList.contains('resizing')); + expect(hasResizingClass).toBe(false); + + // Hover over the image to trigger the hover transform + // CSS: .image.zoomable:hover { transform: rotate(1deg) scale(1.2); } + await firstImage.hover(); + + // Wait a moment for any potential resize detection to trigger + await setup.page.waitForTimeout(100); + + // Verify the gallery is still visible (doesn't have resizing class) + const hasResizingClassAfterHover = await galleryBody.evaluate(el => el.classList.contains('resizing')); + expect(hasResizingClassAfterHover).toBe(false); + + // Verify items are still visible (gallery hasn't disappeared) + await expect(countItems(setup.page)).toHaveCount(9); + + // Test at different zoom levels that might trigger the issue + for (const zoom of ['0.5', '0.67', '0.9', '1.1', '1.25']) { + await setup.page.evaluate((zoomLevel) => { + document.body.style.zoom = zoomLevel; + }, zoom); + + // Move mouse away and back to trigger hover again + await setup.page.mouse.move(0, 0); + await setup.page.waitForTimeout(50); + await firstImage.hover(); + await setup.page.waitForTimeout(100); + + // Gallery should remain visible at all zoom levels + const hasResizingAtZoom = await galleryBody.evaluate(el => el.classList.contains('resizing')); + expect(hasResizingAtZoom).toBe(false); + await expect(countItems(setup.page)).toHaveCount(9); + } + + // Reset zoom + await setup.page.evaluate(() => { + document.body.style.zoom = '1'; + }); + }); }); diff --git a/tests/unit/natural.spec.ts b/tests/unit/natural.spec.ts index f294a2e..e472721 100644 --- a/tests/unit/natural.spec.ts +++ b/tests/unit/natural.spec.ts @@ -237,4 +237,40 @@ describe('Natural Gallery', () => { expect(gallery.collection.map(getSize)).toEqual(result); }); + + it('should not apply scrolling class when scroll events are triggered without actual scrolling', done => { + const images: ModelAttributes[] = [ + { + thumbnailSrc: 'foo.jpg', + enlargedWidth: 6000, + enlargedHeight: 4000, + }, + { + thumbnailSrc: 'bar.jpg', + enlargedWidth: 3648, + enlargedHeight: 5472, + }, + ]; + + const container = getContainerElement(500); + const gallery = new Natural(container, {rowHeight: 400}); + gallery.addItems(images); + + // Simulate a scroll event without actual scroll position change + // This simulates what happens when mouse hover triggers scroll events in some browsers + const scrollEvent = new Event('scroll'); + + // Initially, the gallery should not have the scrolling class + expect(container.classList.contains('scrolling')).toBe(false); + + // Dispatch a scroll event without changing scroll position + document.dispatchEvent(scrollEvent); + + // Wait for any potential debounced functions to trigger + setTimeout(() => { + // The scrolling class should NOT be applied since no actual scrolling occurred + expect(container.classList.contains('scrolling')).toBe(false); + done(); + }, 200); // Wait longer than the debounce timeout + }); });