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- Feature: Markdown view integration complete (if issues arrise can fix it asap)
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@@ -13,21 +13,18 @@ final class CollapsingTextView: UITextView
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var isCollapsed = true {
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didSet {
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guard self.isCollapsed != oldValue else { return }
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self.shouldResetLayout = true
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self.setNeedsLayout()
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}
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}
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var maximumNumberOfLines = 2 {
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didSet {
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self.shouldResetLayout = true
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self.setNeedsLayout()
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}
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}
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var lineSpacing: Double = 2 {
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didSet {
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self.shouldResetLayout = true
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if #available(iOS 16, *)
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{
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@@ -42,7 +39,6 @@ final class CollapsingTextView: UITextView
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override var text: String! {
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didSet {
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self.shouldResetLayout = true
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guard #available(iOS 16, *) else { return }
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self.updateText()
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@@ -51,9 +47,6 @@ final class CollapsingTextView: UITextView
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let moreButton = UIButton(type: .system)
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private var shouldResetLayout: Bool = false
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private var previousSize: CGSize?
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override init(frame: CGRect, textContainer: NSTextContainer?)
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{
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super.init(frame: frame, textContainer: textContainer)
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@@ -115,45 +108,39 @@ final class CollapsingTextView: UITextView
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height: font.lineHeight)
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self.moreButton.frame = moreButtonFrame
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if self.shouldResetLayout || self.previousSize != self.bounds.size
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if self.isCollapsed
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{
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if self.isCollapsed
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let boundingSize = self.attributedText.boundingRect(with: CGSize(width: self.textContainer.size.width, height: .infinity), options: [.usesLineFragmentOrigin, .usesFontLeading], context: nil)
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let maximumCollapsedHeight = font.lineHeight * Double(self.maximumNumberOfLines) + self.lineSpacing * Double(self.maximumNumberOfLines - 1)
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if boundingSize.height.rounded() > maximumCollapsedHeight.rounded()
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{
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let boundingSize = self.attributedText.boundingRect(with: CGSize(width: self.textContainer.size.width, height: .infinity), options: [.usesLineFragmentOrigin, .usesFontLeading], context: nil)
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let maximumCollapsedHeight = font.lineHeight * Double(self.maximumNumberOfLines) + self.lineSpacing * Double(self.maximumNumberOfLines - 1)
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self.textContainer.maximumNumberOfLines = self.maximumNumberOfLines
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if boundingSize.height.rounded() > maximumCollapsedHeight.rounded()
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{
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self.textContainer.maximumNumberOfLines = self.maximumNumberOfLines
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var exclusionFrame = moreButtonFrame
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exclusionFrame.origin.y += self.moreButton.bounds.midY
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exclusionFrame.size.width = self.bounds.width // Extra wide to make sure it wraps to next line.
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self.textContainer.exclusionPaths = [UIBezierPath(rect: exclusionFrame)]
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self.moreButton.isHidden = false
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}
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else
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{
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self.textContainer.maximumNumberOfLines = 0 // Fixes last line having slightly smaller line spacing.
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self.textContainer.exclusionPaths = []
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self.moreButton.isHidden = true
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}
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var exclusionFrame = moreButtonFrame
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exclusionFrame.origin.y += self.moreButton.bounds.midY
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exclusionFrame.size.width = self.bounds.width // Extra wide to make sure it wraps to next line.
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self.textContainer.exclusionPaths = [UIBezierPath(rect: exclusionFrame)]
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self.moreButton.isHidden = false
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}
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else
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{
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self.textContainer.maximumNumberOfLines = 0
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self.textContainer.maximumNumberOfLines = 0 // Fixes last line having slightly smaller line spacing.
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self.textContainer.exclusionPaths = []
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self.moreButton.isHidden = true
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}
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}
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else
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{
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self.textContainer.maximumNumberOfLines = 0
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self.textContainer.exclusionPaths = []
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self.invalidateIntrinsicContentSize()
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self.moreButton.isHidden = true
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}
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self.shouldResetLayout = false
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self.previousSize = self.bounds.size
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self.invalidateIntrinsicContentSize()
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}
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}
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