mbrucedogs/vds_ios
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

first attempt to get link clicks working again

Browse Source 
Signed-off-by: Matt Bruce <matt.bruce@verizon.com>
This commit is contained in:
Matt Bruce 2024-06-21 12:20:39 -05:00
parent eeae91e616
commit 31b9704163
1 changed files with 75 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

85
VDS/Components/Label/Label.swift
View File

@ -411,20 +411,85 @@ open class Label: UILabel, ViewProtocol, UserInfoable {
private func didTapActionInLabel(_ location: CGPoint, inRange targetRange: NSRange) -> Bool {
guard let attributedText else { return false }
// guard let attributedText else { return false }
// let layoutManager = NSLayoutManager()
// let textContainer = NSTextContainer(size: bounds.size)
// let textStorage = NSTextStorage(attributedString: attributedText)
// layoutManager.addTextContainer(textContainer)
// textStorage.addLayoutManager(layoutManager)
//
// 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
// There would only ever be one clause to act on.
guard let abstractContainer = abstractTextContainer() else { return false }
let textContainer = abstractContainer.0
let layoutManager = abstractContainer.1
let tapLocation = location
let indexOfGlyph = layoutManager.glyphIndex(for: tapLocation, in: textContainer)
let intrinsicWidth = intrinsicContentSize.width
// Assert that tapped occured within acceptable bounds based on alignment.
switch textAlignment {
case .right:
if tapLocation.x < bounds.width - intrinsicWidth {
return false
}
case .center:
let halfBounds = bounds.width / 2
let halfIntrinsicWidth = intrinsicWidth / 2
if tapLocation.x > halfBounds + halfIntrinsicWidth {
return false
} else if tapLocation.x < halfBounds - halfIntrinsicWidth {
return false
}
default: // Left align
if tapLocation.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(tapLocation) && NSLocationInRange(indexOfGlyph, targetRange)
}
/**
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() -> (NSTextContainer, NSLayoutManager, 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: bounds.size)
let textStorage = NSTextStorage(attributedString: attributedText)
let textContainer = NSTextContainer(size: .zero)
layoutManager.addTextContainer(textContainer)
textStorage.addLayoutManager(layoutManager)
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
textContainer.lineFragmentPadding = 0.0
textContainer.lineBreakMode = lineBreakMode
textContainer.maximumNumberOfLines = numberOfLines
textContainer.size = bounds.size
return (textContainer, layoutManager, textStorage)
}
private func customAccessibilityElement(text: String?, range: NSRange, accessibleText: String? = nil) -> AccessibilityActionElement? {
guard let text = text, let attributedText else { return nil }