Add isIncludedInPinLayout property to Layoutable

Author: stleamist

Sources/Extensions/CALayer+PinLayout.swift

@@ -20,6 +20,10 @@
 import QuartzCore
 
 extension CALayer: Layoutable {
+    private struct pinlayoutAssociatedKeys {
+        static var pinlayoutIsIncludedInPinLayout = UnsafeMutablePointer<Int8>.allocate(capacity: 1)
+    }
+
     public typealias PinView = CALayer
 
     public var superview: CALayer? {
@@ -38,6 +42,15 @@ extension CALayer: Layoutable {
         return PinLayout(view: self, keepTransform: false)
     }
 
+    public var isIncludedInPinLayout: Bool {
+        get {
+            return objc_getAssociatedObject(self, &pinlayoutAssociatedKeys.pinlayoutIsIncludedInPinLayout) as? Bool ?? true
+        }
+        set {
+            objc_setAssociatedObject(self, &pinlayoutAssociatedKeys.pinlayoutIsIncludedInPinLayout, newValue, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC)
+        }
+    }
+
     public func getRect(keepTransform: Bool) -> CGRect {
         if keepTransform {
             /*

Sources/Extensions/UIView+PinLayout.swift

@@ -22,6 +22,14 @@ import Foundation
 #if os(iOS) || os(tvOS)
 import UIKit
 
+extension UIView {
+    fileprivate struct pinlayoutAssociatedKeys {
+        static var pinlayoutIsIncludedInPinLayout = UnsafeMutablePointer<Int8>.allocate(capacity: 1)
+        static var pinlayoutAutoSizingRect = UnsafeMutablePointer<Int8>.allocate(capacity: 1)
+        static var pinlayoutAutoSizingRectWithMargins = UnsafeMutablePointer<Int8>.allocate(capacity: 1)
+    }
+}
+
 extension UIView: Layoutable, SizeCalculable {
     public typealias PinView = UIView
 
@@ -37,6 +45,15 @@ extension UIView: Layoutable, SizeCalculable {
         return PinLayoutObjCImpl(view: self, keepTransform: true)
     }
 
+    public var isIncludedInPinLayout: Bool {
+        get {
+            return objc_getAssociatedObject(self, &pinlayoutAssociatedKeys.pinlayoutIsIncludedInPinLayout) as? Bool ?? true
+        }
+        set {
+            objc_setAssociatedObject(self, &pinlayoutAssociatedKeys.pinlayoutIsIncludedInPinLayout, newValue, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC)
+        }
+    }
+
     public func getRect(keepTransform: Bool) -> CGRect {
         guard !Pin.autoSizingInProgress || autoSizingRect == nil else { return autoSizingRect ?? CGRect.zero }
 
@@ -94,11 +111,6 @@ extension UIView: Layoutable, SizeCalculable {
 }
 
 extension UIView: AutoSizeCalculable {
-    private struct pinlayoutAssociatedKeys {
-        static var pinlayoutAutoSizingRect = UnsafeMutablePointer<Int8>.allocate(capacity: 1)
-        static var pinlayoutAutoSizingRectWithMargins = UnsafeMutablePointer<Int8>.allocate(capacity: 1)
-    }
-
     private var autoSizingRect: CGRect? {
         get {
             return objc_getAssociatedObject(self, &pinlayoutAssociatedKeys.pinlayoutAutoSizingRect) as? CGRect

Sources/Layoutable.swift

@@ -29,10 +29,18 @@ public protocol Layoutable: AnyObject, Equatable, CustomDebugStringConvertible {
     var superview: PinView? { get }
     var subviews: [PinView] { get }
 
+    var isIncludedInPinLayout: Bool { get set }
+
     func getRect(keepTransform: Bool) -> CGRect
     func setRect(_ rect: CGRect, keepTransform: Bool)
 
     func convert(_ point: CGPoint, to view: PinView?) -> CGPoint
 
     func isLTR() -> Bool
 }
+
+extension Layoutable {
+    public var includedSubviews: [PinView] {
+        return subviews.filter(\.isIncludedInPinLayout)
+    }
+}