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Latest changes to account for variable icon locations and text alignments.

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This commit is contained in:
Kevin G Christiano 2019-08-14 12:58:46 -04:00
parent 7c93506d87
commit abde89f06f
1 changed files with 13 additions and 34 deletions
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47
MVMCoreUI/Atoms/Views/Label.swift
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@ -20,7 +20,7 @@ public typealias ActionBlock = () -> ()
public var makeWholeViewClickable = false public var makeWholeViewClickable = false
/// Indication that attributed text attachment will affect range location of attributed text. /// Indication that attributed text attachment will affect range location of attributed text.
fileprivate var hasAttachmentImageInsideText = false public var hasAttachmentImageInsideText = false
/// Set this property if you want updateView to update the font based on this standard and the size passed in. /// Set this property if you want updateView to update the font based on this standard and the size passed in.
public var standardFontSize: CGFloat = 0.0 public var standardFontSize: CGFloat = 0.0
@ -126,6 +126,7 @@ public typealias ActionBlock = () -> ()
return label return label
} }
/// H32 -> Legal
@objc public static func commonLabelH32(_ scale: Bool) -> Label { @objc public static func commonLabelH32(_ scale: Bool) -> Label {
let label = Label.label() let label = Label.label()
label.styleH32(scale) label.styleH32(scale)
@ -153,12 +154,14 @@ public typealias ActionBlock = () -> ()
return label return label
} }
/// B20 -> Legal
@objc public static func commonLabelB20(_ scale: Bool) -> Label { @objc public static func commonLabelB20(_ scale: Bool) -> Label {
let label = Label.label() let label = Label.label()
label.styleB20(scale) label.styleB20(scale)
return label return label
} }
/// Default
@objc open class func label() -> Label { @objc open class func label() -> Label {
return Label(frame: .zero) return Label(frame: .zero)
} }
@ -556,35 +559,11 @@ extension Label {
@objc private func textLinkTapped(_ gesture: UITapGestureRecognizer) { @objc private func textLinkTapped(_ gesture: UITapGestureRecognizer) {
var offset = 0
var attachmentLocations: [Int] = []
var attachmentIndex = 0
// Used to identify all image attachments in the label.
if hasAttachmentImageInsideText {
attributedText?.enumerateAttribute(.attachment, in: NSRange(location: 0, length: attributedText!.length), options: []) { value, range, stop in
guard value is NSTextAttachment else { return }
attachmentLocations.append(range.location)
if range.location == 0 {
offset = 2
}
}
}
for clause in clauses { for clause in clauses {
guard let range = clause.range else { return } guard let range = clause.range else { return }
// Must increment an offset becuase every image added to text interior increases text length by 2.
if hasAttachmentImageInsideText {
if range.location >= attachmentLocations[attachmentIndex] - range.length {
offset += 2
attachmentIndex += 1
}
}
// This determines if we tapped on the desired range of text. // This determines if we tapped on the desired range of text.
if gesture.didTapAttributedTextInLabel(self, inRange: range, offset: offset) { if gesture.didTapAttributedTextInLabel(self, inRange: range) {
clause.performAction() clause.performAction()
return return
} }
@ -595,7 +574,7 @@ extension Label {
// MARK: - // MARK: -
extension UITapGestureRecognizer { extension UITapGestureRecognizer {
func didTapAttributedTextInLabel(_ label: Label, inRange targetRange: NSRange, offset: Int) -> Bool { func didTapAttributedTextInLabel(_ label: Label, inRange targetRange: NSRange) -> Bool {
// There would only ever be one clause to act on. // There would only ever be one clause to act on.
if label.makeWholeViewClickable { if label.makeWholeViewClickable {
@ -603,8 +582,14 @@ extension UITapGestureRecognizer {
} }
guard let attributedText = label.attributedText else { return false } guard let attributedText = label.attributedText else { return false }
let paragraph = NSMutableParagraphStyle()
paragraph.alignment = label.textAlignment
let newAttributedString = NSMutableAttributedString(attributedString: attributedText)
newAttributedString.addAttributes([NSAttributedString.Key.paragraphStyle: paragraph], range: NSRange(location: 0, length: attributedText.string.count))
let textStorage = NSTextStorage(attributedString: attributedText) let textStorage = NSTextStorage(attributedString: newAttributedString)
let layoutManager = NSLayoutManager() let layoutManager = NSLayoutManager()
let textContainer = NSTextContainer(size: .zero) let textContainer = NSTextContainer(size: .zero)
@ -618,12 +603,6 @@ extension UITapGestureRecognizer {
let indexOfGlyph = layoutManager.glyphIndex(for: location(in: label), in: textContainer) let indexOfGlyph = layoutManager.glyphIndex(for: location(in: label), in: textContainer)
// If text attachment was inserted then extra indices must be accounted for.
if label.hasAttachmentImageInsideText {
let location = targetRange.location + offset
return NSLocationInRange(indexOfGlyph, NSRange(location: location, length: targetRange.length))
}
return NSLocationInRange(indexOfGlyph, targetRange) return NSLocationInRange(indexOfGlyph, targetRange)
} }
} }