Make status attachments VoiceOver accessible

Tusker/Views/Attachments/AttachmentView.swift

@@ -75,6 +75,9 @@ class AttachmentView: UIImageView, GIFAnimatable {
         NotificationCenter.default.addObserver(self, selector: #selector(gifPlaybackModeChanged), name: .NSProcessInfoPowerStateDidChange, object: nil)
         
         addInteraction(UIContextMenuInteraction(delegate: self))
+        
+        isAccessibilityElement = true
+        accessibilityTraits = [.image, .button]
     }
     
     @objc private func preferencesChanged() {
@@ -294,6 +297,13 @@ class AttachmentView: UIImageView, GIFAnimatable {
         showGallery()
     }
     
+    // MARK: - Accessibility
+    
+    override func accessibilityActivate() -> Bool {
+        showGallery()
+        return true
+    }
+
 }
 
 fileprivate extension AttachmentView {

Tusker/Views/Attachments/AttachmentsContainerView.swift

@@ -248,9 +248,11 @@ class AttachmentsContainerView: UIView {
         let attachmentView = AttachmentView(attachment: attachments[index], index: index, expectedSize: size)
         attachmentView.delegate = delegate
         attachmentView.translatesAutoresizingMaskIntoConstraints = false
-        attachmentView.isAccessibilityElement = true
-        attachmentView.accessibilityTraits = [.image, .button]
         attachmentView.accessibilityLabel = String(format: NSLocalizedString("Attachment %d", comment: "attachment at index accessiblity label"), index + 1)
+        attachmentView.accessibilityLabel = "Attachment \(index + 1)"
+        if let desc = attachments[index].description {
+            attachmentView.accessibilityLabel! += ", \(desc)"
+        }
         attachmentViews.add(attachmentView)
         return attachmentView
     }

Tusker/Views/Status/BaseStatusTableViewCell.swift

@@ -95,7 +95,6 @@ class BaseStatusTableViewCell: UITableViewCell, MenuPreviewProvider {
         collapseButton.layer.cornerRadius = 5
         
         accessibilityElements = [displayNameLabel!, contentWarningLabel!, collapseButton!, contentTextView!, attachmentsView!, pollView!]
-        attachmentsView.isAccessibilityElement = true
         
         moreButton.showsMenuAsPrimaryAction = true
         
@@ -157,8 +156,6 @@ class BaseStatusTableViewCell: UITableViewCell, MenuPreviewProvider {
         cardView.navigationDelegate = navigationDelegate
         
         attachmentsView.updateUI(status: status)
-        attachmentsView.isAccessibilityElement = status.attachments.count > 0
-        attachmentsView.accessibilityLabel = String(format: NSLocalizedString("%d attachments", comment: "status attachments count accessibility label"), status.attachments.count)
         
         updateStatusState(status: status)
         

Tusker/Views/Status/TimelineStatusTableViewCell.swift

@@ -220,6 +220,11 @@ class TimelineStatusTableViewCell: BaseStatusTableViewCell {
         set {}
     }
     
+    override func accessibilityActivate() -> Bool {
+        didSelectCell()
+        return true
+    }
+
 }
 
 extension TimelineStatusTableViewCell: SelectableTableViewCell {