Fix: truncate pills if they are too long

Riot/Modules/Pills/PillAttachmentView.swift

@@ -70,7 +70,6 @@ class PillAttachmentView: UIView {
                 label.font = pillData.font
                 label.textColor = pillData.isHighlighted ? theme.baseTextPrimaryColor : theme.textPrimaryColor
                 label.translatesAutoresizingMaskIntoConstraints = false
-                label.setContentCompressionResistancePriority(.defaultHigh, for: .horizontal)
                 stack.addArrangedSubview(label)
                 
                 computedWidth += label.sizeThatFits(CGSize(width: CGFloat.greatestFiniteMagnitude, height: sizes.pillBackgroundHeight)).width
@@ -146,10 +145,12 @@ class PillAttachmentView: UIView {
             computedWidth += 2 * sizes.horizontalMargin
         }
         
+        computedWidth = min(pillData.maxWidth, computedWidth)
+        
         let pillBackgroundView = UIView(frame: CGRect(x: 0,
-                                        y: sizes.verticalMargin,
-                                        width: computedWidth,
-                                        height: sizes.pillBackgroundHeight))
+                                                      y: sizes.verticalMargin,
+                                                      width: computedWidth,
+                                                      height: sizes.pillBackgroundHeight))
 
         pillBackgroundView.vc_addSubViewMatchingParent(stack, withInsets: UIEdgeInsets(top: sizes.verticalMargin, left: leadingStackMargin, bottom: -sizes.verticalMargin, right: -sizes.horizontalMargin))
         

Riot/Modules/Pills/PillAttachmentViewProvider.swift

@@ -42,11 +42,15 @@ import UIKit
             return
         }
 
-        guard let pillData = textAttachment.data else {
+        guard var pillData = textAttachment.data else {
             MXLog.debug("[PillAttachmentViewProvider]: attachment misses pill data")
             return
         }
-
+        
+        if let messageTextView {
+            pillData.maxWidth = messageTextView.bounds.width - 8
+        }
+        
         let mainSession = AppDelegate.theDelegate().mxSessions.first as? MXSession
 
         let pillView = PillAttachmentView(frame: CGRect(origin: .zero, size: textAttachment.size(forFont: pillData.font)),

Riot/Modules/Pills/PillTextAttachment.swift

@@ -125,6 +125,8 @@ class PillTextAttachment: NSTextAttachment {
             width += 2 * sizes.horizontalMargin
         }
 
+        width = min(width, data.maxWidth)
+
         return CGSize(width: width,
                       height: sizes.pillHeight)
     }

Riot/Modules/Pills/PillTextAttachmentData.swift

@@ -72,6 +72,8 @@ struct PillTextAttachmentData: Codable {
     var alpha: CGFloat
     /// Font for the display name
     var font: UIFont
+    /// Max width
+    var maxWidth: CGFloat
 
     /// Helper for preferred text to display.
     var displayText: String {
@@ -93,12 +95,14 @@ struct PillTextAttachmentData: Codable {
          items: [PillTextAttachmentItem],
          isHighlighted: Bool,
          alpha: CGFloat,
-         font: UIFont) {
+         font: UIFont,
+         maxWidth: CGFloat = CGFloat.greatestFiniteMagnitude) {
         self.pillType = pillType
         self.items = items
         self.isHighlighted = isHighlighted
         self.alpha = alpha
         self.font = font
+        self.maxWidth = maxWidth
     }
     
     // MARK: - Codable
@@ -108,6 +112,7 @@ struct PillTextAttachmentData: Codable {
         case isHighlighted
         case alpha
         case font
+        case maxWidth
     }
 
     enum PillTextAttachmentDataError: Error {
@@ -126,6 +131,7 @@ struct PillTextAttachmentData: Codable {
         } else {
             throw PillTextAttachmentDataError.noFontData
         }
+        maxWidth = try container.decode(CGFloat.self, forKey: .maxWidth)
     }
 
     func encode(to encoder: Encoder) throws {
@@ -136,6 +142,7 @@ struct PillTextAttachmentData: Codable {
         try container.encode(alpha, forKey: .alpha)
         let fontData = try NSKeyedArchiver.archivedData(withRootObject: font, requiringSecureCoding: false)
         try container.encode(fontData, forKey: .font)
+        try container.encode(maxWidth, forKey: .maxWidth)
     }
     
     // MARK: - Pill representations