Add links/mentions/hashtag to VoiceOver rotor in timelines

Closes #231

Tusker/Views/Status/TimelineStatusCollectionViewCell.swift

@@ -395,6 +395,27 @@ class TimelineStatusCollectionViewCell: UICollectionViewListCell, StatusCollecti
         return true
     }
     
+    override var accessibilityCustomActions: [UIAccessibilityCustomAction]? {
+        get {
+            guard let text = contentTextView.attributedText else {
+                return nil
+            }
+            var actions: [UIAccessibilityCustomAction] = []
+            text.enumerateAttribute(.link, in: NSRange(location: 0, length: text.length)) { value, range, stop in
+                guard let value = value as? URL else {
+                    return
+                }
+                let text = text.attributedSubstring(from: range).string
+                actions.append(UIAccessibilityCustomAction(name: text) { [unowned self] _ in
+                    self.contentTextView.handleLinkTapped(url: value, text: text)
+                    return true
+                })
+            }
+            return actions
+        }
+        set {}
+    }
+    
     // MARK: Configure UI
     
     func updateUI(statusID: String, state: StatusState) {

Tusker/Views/Status/TimelineStatusTableViewCell.swift

@@ -308,6 +308,27 @@ class TimelineStatusTableViewCell: BaseStatusTableViewCell {
         return true
     }
     
+    override var accessibilityCustomActions: [UIAccessibilityCustomAction]? {
+        get {
+            guard let text = contentTextView.attributedText else {
+                return nil
+            }
+            var actions: [UIAccessibilityCustomAction] = []
+            text.enumerateAttribute(.link, in: NSRange(location: 0, length: text.length)) { value, range, stop in
+                guard let value = value as? URL else {
+                    return
+                }
+                let text = text.attributedSubstring(from: range).string
+                actions.append(UIAccessibilityCustomAction(name: text) { [unowned self] _ in
+                    self.contentTextView.handleLinkTapped(url: value, text: text)
+                    return true
+                })
+            }
+            return actions
+        }
+        set {}
+    }
+    
 }
 
 extension TimelineStatusTableViewCell: SelectableTableViewCell {