Fix custom emoji picker buttons not having accessibility labels

Closes #286

Tusker/Screens/Compose/ComposeAutocompleteView.swift

@@ -236,6 +236,7 @@ struct ComposeAutocompleteEmojisView: View {
                                 CustomEmojiImageView(emoji: emoji)
                                     .frame(height: emojiSize)
                             }
+                            .accessibilityLabel(emoji.shortcode)
                         }
                     } header: {
                         if !section.isEmpty {
@@ -271,6 +272,7 @@ struct ComposeAutocompleteEmojisView: View {
                                 .foregroundColor(Color(UIColor.label))
                         }
                     }
+                    .accessibilityLabel(emoji.shortcode)
                     .frame(height: emojiSize)
                 }
                 .animation(.linear(duration: 0.2), value: emojis)
@@ -293,6 +295,7 @@ struct ComposeAutocompleteEmojisView: View {
                 .aspectRatio(contentMode: .fit)
                 .rotationEffect(expanded ? .zero : .degrees(180))
         }
+        .accessibilityLabel(expanded ? "Collapse" : "Expand")
         .frame(width: 20, height: 20)
     }
     

Tusker/Screens/Fast Account Switcher/FastAccountSwitcherViewController.swift

@@ -42,6 +42,8 @@ class FastAccountSwitcherViewController: UIViewController {
 
         view.isHidden = true
         
+        view.accessibilityViewIsModal = true
+        
         view.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleTap(_:))))
         accountsStack.addGestureRecognizer(UIPanGestureRecognizer(target: self, action: #selector(handlePan(_:))))
     }
@@ -67,10 +69,16 @@ class FastAccountSwitcherViewController: UIViewController {
         
         view.isHidden = false
         
+        func completion() {
+            UIAccessibility.post(notification: .screenChanged, argument: accountViews.first)
+        }
+        
         if UIAccessibility.prefersCrossFadeTransitions {
             view.alpha = 0
             UIView.animate(withDuration: 0.2, delay: 0, options: [.curveEaseInOut, .allowUserInteraction]) {
                 self.view.alpha = 1
+            } completion: { _ in
+                completion()
             }
         } else {
             let totalDuration: TimeInterval = 0.5
@@ -95,6 +103,8 @@ class FastAccountSwitcherViewController: UIViewController {
                         accountView.transform = .identity
                     }
                 }
+            } completion: { _ in
+                completion()
             }
         }
     }
@@ -114,6 +124,8 @@ class FastAccountSwitcherViewController: UIViewController {
             self.view.isHidden = true
             completion?()
             self.view.removeFromSuperview()
+            
+            UIAccessibility.post(notification: .screenChanged, argument: nil)
         }
     }
     
@@ -272,6 +284,14 @@ class FastAccountSwitcherViewController: UIViewController {
         super.touchesBegan(touches, with: event)
     }
     
+    override func accessibilityPerformEscape() -> Bool {
+        guard !view.isHidden else {
+            return false
+        }
+        hide()
+        return true
+    }
+
 }
 
 extension FastAccountSwitcherViewController {

Tusker/Screens/Fast Account Switcher/FastSwitchingAccountView.swift

@@ -117,6 +117,8 @@ class FastSwitchingAccountView: UIView {
         }
         
         updateLabelColors()
+        
+        isAccessibilityElement = true
     }
     
     private func setupAccount(account: LocalData.UserAccountInfo) {
@@ -134,12 +136,16 @@ class FastSwitchingAccountView: UIView {
                 }
             }
         }
+        
+        accessibilityLabel = "\(account.username!)@\(account.instanceURL.host!)"
     }
     
     private func setupPlaceholder() {
         usernameLabel.text = "Add Account"
         instanceLabel.isHidden = true
         avatarImageView.image = UIImage(systemName: "plus")
+        
+        accessibilityLabel = "Add Account"
     }
     
     private func updateLabelColors() {

Tusker/Screens/Notifications/NotificationsTableViewController.swift

@@ -296,6 +296,7 @@ class NotificationsTableViewController: DiffableTimelineLikeTableViewController<
                 completion(true)
             }
         }
+        dismissAction.accessibilityLabel = "Dismiss Notification"
         dismissAction.image = UIImage(systemName: "clear.fill")
         
         let cellConfiguration = (tableView.cellForRow(at: indexPath) as? TableViewSwipeActionProvider)?.trailingSwipeActionsConfiguration()

Tusker/Views/Notifications/ActionNotificationGroupTableViewCell.swift

@@ -222,6 +222,31 @@ class ActionNotificationGroupTableViewCell: UITableViewCell {
         updateTimestampWorkItem = nil
     }
     
+    // MARK: Accessibility
+    
+    override var accessibilityLabel: String? {
+        get {
+            let first = group.notifications.first!
+            var str = ""
+            switch group.kind {
+            case .favourite:
+                str += "Favorited by "
+            case .reblog:
+                str += "Reblogged by "
+            default:
+                return nil
+            }
+            str += first.account.displayNameWithoutCustomEmoji
+            if group.notifications.count > 1 {
+                str += " and \(group.notifications.count - 1) more"
+            }
+            str += ", \(first.createdAt.formatted(.relative(presentation: .numeric))), "
+            str += statusContentLabel.text ?? ""
+            return str
+        }
+        set {}
+    }
+
 }
 
 extension ActionNotificationGroupTableViewCell: SelectableTableViewCell {

Tusker/Views/Notifications/FollowNotificationGroupTableViewCell.swift

@@ -186,6 +186,22 @@ class FollowNotificationGroupTableViewCell: UITableViewCell {
         updateTimestampWorkItem = nil
     }
     
+    // MARK: Accessibility
+    
+    override var accessibilityLabel: String? {
+        get {
+            let first = group.notifications.first!
+            var str = "Followed by "
+            str += first.account.displayNameWithoutCustomEmoji
+            if group.notifications.count > 1 {
+                str += " and \(group.notifications.count - 1) more"
+            }
+            str += ", \(first.createdAt.formatted(.relative(presentation: .numeric)))"
+            return str
+        }
+        set {}
+    }
+
 }
 
 extension FollowNotificationGroupTableViewCell: SelectableTableViewCell {

Tusker/Views/Notifications/FollowRequestNotificationTableViewCell.swift

@@ -135,6 +135,29 @@ class FollowRequestNotificationTableViewCell: UITableViewCell {
         self.stackView.addArrangedSubview(label)
     }
     
+    // MARK: Accessibility
+    
+    override var accessibilityLabel: String? {
+        get {
+            guard let notification else { return nil }
+            var str = "Follow requested by "
+            str += notification.account.displayNameWithoutCustomEmoji
+            str += ", \(notification.createdAt.formatted(.relative(presentation: .numeric)))"
+            return str
+        }
+        set {}
+    }
+    
+    override var accessibilityCustomActions: [UIAccessibilityCustomAction]? {
+        get {
+            return [
+                UIAccessibilityCustomAction(name: "Accept Request", target: self, selector: #selector(acceptButtonPressed)),
+                UIAccessibilityCustomAction(name: "Reject Request", target: self, selector: #selector(acceptButtonPressed)),
+            ]
+        }
+        set {}
+    }
+    
     // MARK: - Interaction
     
     @IBAction func rejectButtonPressed() {

Tusker/Views/Notifications/FollowRequestNotificationTableViewCell.xib

@@ -55,7 +55,7 @@
                                         <rect key="frame" x="0.0" y="0.0" width="115" height="26.5"/>
                                         <accessibility key="accessibilityConfiguration" label="Accept Request"/>
                                         <state key="normal" title=" Accept" image="checkmark.circle.fill" catalog="system">
-                                            <color key="titleColor" systemColor="systemBlueColor"/>
+                                            <color key="titleColor" systemColor="tintColor"/>
                                         </state>
                                         <connections>
                                             <action selector="acceptButtonPressed" destination="Pcu-ap-Xqf" eventType="touchUpInside" id="hGw-3d-RNi"/>
@@ -64,7 +64,7 @@
                                     <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" pointerInteraction="YES" translatesAutoresizingMaskIntoConstraints="NO" id="7MW-rY-m5l">
                                         <rect key="frame" x="115" y="0.0" width="115" height="26.5"/>
                                         <state key="normal" title=" Reject" image="xmark.circle.fill" catalog="system">
-                                            <color key="titleColor" systemColor="systemBlueColor"/>
+                                            <color key="titleColor" systemColor="tintColor"/>
                                         </state>
                                         <connections>
                                             <action selector="rejectButtonPressed" destination="Pcu-ap-Xqf" eventType="touchUpInside" id="EP6-Bg-3nC"/>
@@ -111,7 +111,7 @@
         <systemColor name="secondaryLabelColor">
             <color red="0.23529411764705882" green="0.23529411764705882" blue="0.2627450980392157" alpha="0.59999999999999998" colorSpace="custom" customColorSpace="sRGB"/>
         </systemColor>
-        <systemColor name="systemBlueColor">
+        <systemColor name="tintColor">
             <color red="0.0" green="0.47843137254901963" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
         </systemColor>
     </resources>

Tusker/Views/Notifications/PollFinishedTableViewCell.swift

@@ -93,6 +93,25 @@ class PollFinishedTableViewCell: UITableViewCell {
         updateTimestampWorkItem = nil
     }
     
+    // MARK: Accessibility
+    
+    override var accessibilityLabel: String? {
+        get {
+            guard let notification else { return nil }
+            var str = "Poll from "
+            str += notification.account.displayNameWithoutCustomEmoji
+            str += " finished "
+            str += notification.createdAt.formatted(.relative(presentation: .numeric))
+            if let poll = notification.status?.poll,
+               poll.options.contains(where: { ($0.votesCount ?? 0) > 0 }) {
+                let winner = poll.options.max(by: { ($0.votesCount ?? 0) < ($1.votesCount ?? 0) })!
+                str += ", winning option: \(winner.title)"
+            }
+            return str
+        }
+        set {}
+    }
+    
 }
 
 extension PollFinishedTableViewCell: SelectableTableViewCell {

Tusker/Views/Notifications/StatusUpdatedNotificationTableViewCell.swift

@@ -85,6 +85,22 @@ class StatusUpdatedNotificationTableViewCell: UITableViewCell {
         updateTimestampWorkItem = nil
     }
     
+    // MARK: Accessibility
+    
+    override var accessibilityLabel: String? {
+        get {
+            guard let notification else { return nil }
+            var str = "Post from "
+            str += notification.account.displayNameWithoutCustomEmoji
+            str += " edited "
+            str += notification.createdAt.formatted(.relative(presentation: .numeric))
+            str += ", "
+            str += contentLabel.text ?? ""
+            return str
+        }
+        set {}
+    }
+    
 }
 
 extension StatusUpdatedNotificationTableViewCell: SelectableTableViewCell {