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| 1 | +var JSONTree = (function() { // eslint-disable-line no-unused-vars |
| 2 | + var escapeMap = { |
| 3 | + '&': '&', |
| 4 | + '<': '<', |
| 5 | + '>': '>', |
| 6 | + '"': '"', |
| 7 | + '\'': ''', |
| 8 | + '/': '/', |
| 9 | + }; |
| 10 | + |
| 11 | + var internalId = 0; |
| 12 | + var instances = 0; |
| 13 | + |
| 14 | + this.create = function(data, settings) { |
| 15 | + instances += 1; |
| 16 | + return '<div class="jstTree">' + _jsVal(data) + '</div>'; |
| 17 | + }; |
| 18 | + |
| 19 | + this.click = function(elem) { |
| 20 | + if (elem.nextElementSibling.className !== 'jstHiddenBlock') { |
| 21 | + var block = findNextWithClass(elem, 'jstBracket'); |
| 22 | + var siblings = _nextUntil(block, block.id + '_end'); |
| 23 | + _hide(elem, siblings); |
| 24 | + elem.className = 'jstExpand'; |
| 25 | + } else { |
| 26 | + var block = findNextWithClass(elem, 'jstBracket'); |
| 27 | + var hiddenElements = findNextWithClass(elem, 'jstHiddenBlock'); |
| 28 | + var children = hiddenElements.children; |
| 29 | + for (var i = children.length; i > 0; i--) { |
| 30 | + var child = children[i - 1]; |
| 31 | + block.after(child); |
| 32 | + } |
| 33 | + hiddenElements.remove(); |
| 34 | + elem.className = 'jstCollapse'; |
| 35 | + } |
| 36 | + }; |
| 37 | + |
| 38 | + var findNextWithClass = function(element, clazz) { |
| 39 | + var next = element.nextElementSibling; |
| 40 | + while (true) { |
| 41 | + if (next.className === clazz) { |
| 42 | + return next; |
| 43 | + } |
| 44 | + next = next.nextElementSibling; |
| 45 | + } |
| 46 | + }; |
| 47 | + |
| 48 | + var _id = function() { |
| 49 | + return instances + '_' + internalId++; |
| 50 | + }; |
| 51 | + |
| 52 | + var _escape = function(text) { |
| 53 | + return text.replace(/[&<>'"]/g, function(c) { |
| 54 | + return escapeMap[c]; |
| 55 | + }); |
| 56 | + }; |
| 57 | + |
| 58 | + var _jsVal = function(value) { |
| 59 | + var type = typeof value; |
| 60 | + switch (type) { |
| 61 | + case 'boolean': |
| 62 | + return _jsBool(value); |
| 63 | + case 'number': |
| 64 | + return _jsNum(value); |
| 65 | + case 'string': |
| 66 | + return _jsStr(value); |
| 67 | + default: |
| 68 | + if (value === null) { |
| 69 | + return _jsNull(); |
| 70 | + } else if (value instanceof Array) { |
| 71 | + return _jsArr(value); |
| 72 | + } else { |
| 73 | + return _jsObj(value); |
| 74 | + } |
| 75 | + } |
| 76 | + }; |
| 77 | + |
| 78 | + var _jsObj = function(object) { |
| 79 | + var id = _id(); |
| 80 | + var elements = []; |
| 81 | + var keys = Object.keys(object); |
| 82 | + keys.forEach(function(key, index) { |
| 83 | + var html = []; |
| 84 | + html.push('<li class="jstItem">'); |
| 85 | + if (_canCollapse(object[key])) { |
| 86 | + html.push(_collapseElem()); |
| 87 | + } |
| 88 | + html.push(_property(key, object[key])); |
| 89 | + if (index !== keys.length - 1) { |
| 90 | + html.push(_comma()); |
| 91 | + } |
| 92 | + html.push('</li>'); |
| 93 | + elements.push(html.join('')); |
| 94 | + }); |
| 95 | + var body = elements.join(''); |
| 96 | + return _collection(_open('{', id), body, _close('}', id)); |
| 97 | + }; |
| 98 | + |
| 99 | + var _collapseElem = function() { |
| 100 | + var onClick = 'onclick="JSONTree.click(this); return false;"'; |
| 101 | + return '<span class="jstCollapse" ' + onClick + '></span>'; |
| 102 | + }; |
| 103 | + |
| 104 | + var _canCollapse = function(data) { |
| 105 | + var type = typeof data; |
| 106 | + switch (type) { |
| 107 | + case 'boolean': |
| 108 | + return false; |
| 109 | + case 'number': |
| 110 | + return false; |
| 111 | + case 'string': |
| 112 | + return false; |
| 113 | + default: |
| 114 | + if (data === null) { |
| 115 | + return false; |
| 116 | + } else if (data instanceof Array) { |
| 117 | + return data.length > 0; |
| 118 | + } else { |
| 119 | + return Object.keys(data).length > 0; |
| 120 | + } |
| 121 | + } |
| 122 | + }; |
| 123 | + |
| 124 | + var _collection = function(opening, data, closing) { |
| 125 | + if (data.length > 0) { |
| 126 | + return [ |
| 127 | + opening, |
| 128 | + '<ul class="jstList">', |
| 129 | + data, |
| 130 | + '</ul>', |
| 131 | + closing, |
| 132 | + ].join(''); |
| 133 | + } else { |
| 134 | + return opening + closing; |
| 135 | + } |
| 136 | + }; |
| 137 | + |
| 138 | + var _jsArr = function(array) { |
| 139 | + var id = _id(); |
| 140 | + var elements = []; |
| 141 | + array.forEach(function(element, index) { |
| 142 | + var html = ['<li class="jstItem">']; |
| 143 | + if (_canCollapse(element)) { |
| 144 | + html.push(_collapseElem()); |
| 145 | + } |
| 146 | + html.push(_jsVal(element)); |
| 147 | + if (index !== array.length - 1) { |
| 148 | + html.push(_comma()); |
| 149 | + } |
| 150 | + html.push('</li>'); |
| 151 | + elements.push(html.join('')); |
| 152 | + }); |
| 153 | + var body = elements.join(''); |
| 154 | + return _collection(_open('[', id), body, _close(']', id)); |
| 155 | + }; |
| 156 | + |
| 157 | + var _jsStr = function(value) { |
| 158 | + var jsonString = _escape(JSON.stringify(value)); |
| 159 | + return _element(jsonString, {class: 'jstStr'}); |
| 160 | + }; |
| 161 | + |
| 162 | + var _jsNum = function(value) { |
| 163 | + return _element(value, {class: 'jstNum'}); |
| 164 | + }; |
| 165 | + |
| 166 | + var _jsBool = function(value) { |
| 167 | + return _element(value, {class: 'jstBool'}); |
| 168 | + }; |
| 169 | + |
| 170 | + var _jsNull = function() { |
| 171 | + return _element('null', {class: 'jstNull'}); |
| 172 | + }; |
| 173 | + |
| 174 | + var _property = function(name, value) { |
| 175 | + var escapedValue = _escape(JSON.stringify(name)); |
| 176 | + var property = _element(escapedValue, {class: 'jstProperty'}); |
| 177 | + var propertyValue = _jsVal(value); |
| 178 | + return [property + _colon(), propertyValue].join(''); |
| 179 | + }; |
| 180 | + |
| 181 | + var _colon = function() { |
| 182 | + return _element(': ', {class: 'jstColon'}); |
| 183 | + }; |
| 184 | + |
| 185 | + var _comma = function() { |
| 186 | + return _element(',', {class: 'jstComma'}); |
| 187 | + }; |
| 188 | + |
| 189 | + var _element = function(content, attrs) { |
| 190 | + var attrsStr = Object.keys(attrs).map(function(attr) { |
| 191 | + return ' ' + attr + '="' + attrs[attr] + '"'; |
| 192 | + }).join(''); |
| 193 | + return '<span' + attrsStr + '>' + content + '</span>'; |
| 194 | + }; |
| 195 | + |
| 196 | + var _open = function(sym, id) { |
| 197 | + return _element(sym, {id: 'opening_' + id, class: 'jstBracket'}); |
| 198 | + }; |
| 199 | + |
| 200 | + var _close = function(sym, id) { |
| 201 | + return _element(sym, {id: 'opening_' + id + '_end', class: 'jstBracket'}); |
| 202 | + }; |
| 203 | + |
| 204 | + var _nextUntil = function(elem, id) { |
| 205 | + var siblings = []; |
| 206 | + elem = elem.nextElementSibling; |
| 207 | + while (elem) { |
| 208 | + if (elem.id == id) { |
| 209 | + break; |
| 210 | + } |
| 211 | + siblings.push(elem); |
| 212 | + elem = elem.nextElementSibling; |
| 213 | + } |
| 214 | + return siblings; |
| 215 | + }; |
| 216 | + |
| 217 | + var _hide = function(elem, siblings) { |
| 218 | + var wrapper = document.createElement('div'); |
| 219 | + wrapper.className = 'jstHiddenBlock'; |
| 220 | + siblings.forEach(function(s) { |
| 221 | + wrapper.appendChild(s); |
| 222 | + }); |
| 223 | + elem.after(wrapper); |
| 224 | + }; |
| 225 | + |
| 226 | + return this; |
| 227 | +})(); |
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