Merge branch 'hotfix/label-actions' into 'release/20_0_0'

Label update

See merge request BPHV_MIPS/vds_ios!262

VDS/Components/Label/Label.swift

@@ -402,6 +402,36 @@ open class Label: UILabel, ViewProtocol, UserInfoable {
         }
     }
 
+    /**
+     Provides a text container and layout manager of how the text would appear on screen.
+     They are used in tandem to derive low-level TextKit results of the label.
+     */
+    public func abstractTextContainer() -> (textContainer: NSTextContainer, layoutManager: NSLayoutManager, textStorage: NSTextStorage)? {
+        
+        // Must configure the attributed string to translate what would appear on screen to accurately analyze.
+        guard let attributedText = attributedText else { return nil }
+        
+        let paragraph = NSMutableParagraphStyle()
+        paragraph.alignment = textAlignment
+        
+        let stagedAttributedString = NSMutableAttributedString(attributedString: attributedText)
+        stagedAttributedString.addAttributes([NSAttributedString.Key.paragraphStyle: paragraph], range: NSRange(location: 0, length: attributedText.string.count))
+        
+        let textStorage = NSTextStorage(attributedString: stagedAttributedString)
+        let layoutManager = NSLayoutManager()
+        let textContainer = NSTextContainer(size: .zero)
+        
+        layoutManager.addTextContainer(textContainer)
+        textStorage.addLayoutManager(layoutManager)
+        
+        textContainer.lineFragmentPadding = 0.0
+        textContainer.lineBreakMode = lineBreakMode
+        textContainer.maximumNumberOfLines = numberOfLines
+        textContainer.size = bounds.size
+        
+        return (textContainer, layoutManager, textStorage)
+    }
+    
     private func customAccessibilityAction(text: String?, range: NSRange, accessibleText: String? = nil) -> UIAccessibilityCustomAction? {
         
         guard let text = text, let attributedText else { return nil }

VDS/Extensions/UITapGestureRecognizer.swift

@@ -15,20 +15,39 @@ extension UITapGestureRecognizer {
     ///   - label: UILabel in question
     ///   - targetRange: Range to look within
     /// - Returns: Wether the range in the label has an action
-    public func didTapActionInLabel(_ label: UILabel, inRange targetRange: NSRange) -> Bool {
-        
-        guard let attributedText = label.attributedText else { return false }
-        
-        let layoutManager = NSLayoutManager()
-        let textContainer = NSTextContainer(size: label.bounds.size)
-        let textStorage = NSTextStorage(attributedString: attributedText)
-        layoutManager.addTextContainer(textContainer)
-        textStorage.addLayoutManager(layoutManager)
-
+    public func didTapActionInLabel(_ label: Label, inRange targetRange: NSRange) -> Bool {
+        guard let abstractContainer = label.abstractTextContainer() else { return false }
         let location = location(in: label)
-        let characterIndex = layoutManager.characterIndex(for: location, in: textContainer, fractionOfDistanceBetweenInsertionPoints: nil)
-
-        guard let _ = attributedText.attribute(NSAttributedString.Key.action, at: characterIndex, effectiveRange: nil) as? String, characterIndex < attributedText.length else { return false }
-        return true
+        
+        let textContainer = abstractContainer.textContainer
+        let layoutManager = abstractContainer.layoutManager
+        
+        let indexOfGlyph = layoutManager.glyphIndex(for: location, in: textContainer)
+        let intrinsicWidth = label.intrinsicContentSize.width
+        
+        // Assert that tapped occured within acceptable bounds based on alignment.
+        switch label.textAlignment {
+        case .right:
+            if location.x < label.bounds.width - intrinsicWidth {
+                return false
+            }
+        case .center:
+            let halfBounds = label.bounds.width / 2
+            let halfIntrinsicWidth = intrinsicWidth / 2
+            
+            if location.x > halfBounds + halfIntrinsicWidth {
+                return false
+            } else if location.x < halfBounds - halfIntrinsicWidth {
+                return false
+            }
+        default: // Left align
+            if location.x > intrinsicWidth {
+                return false
+            }
+        }
+        
+        // Affirms that the tap occured in the desired rect of provided by the target range.
+        return layoutManager.boundingRect(forGlyphRange: targetRange, in: textContainer).contains(location)
+        && NSLocationInRange(indexOfGlyph, targetRange)
     }
 }