Change name and improve a11y

MastodonSDK/Sources/MastodonUI/View/Content/StatusCardControl.swift

@@ -12,7 +12,7 @@ import MastodonCore
 import CoreDataStack
 import UIKit
 
-public final class LinkPreviewButton: UIControl {
+public final class StatusCardControl: UIControl {
     private var disposeBag = Set<AnyCancellable>()
 
     private let containerStackView = UIStackView()
@@ -25,21 +25,23 @@ public final class LinkPreviewButton: UIControl {
 
     private lazy var compactImageConstraints = [
         imageView.heightAnchor.constraint(equalTo: heightAnchor),
-        imageView.widthAnchor.constraint(equalTo: heightAnchor),
-        heightAnchor.constraint(equalToConstant: 85),
+        imageView.widthAnchor.constraint(equalToConstant: 85),
+        heightAnchor.constraint(equalToConstant: 85).priority(.defaultLow - 1),
+        heightAnchor.constraint(greaterThanOrEqualToConstant: 85)
     ]
 
     private lazy var largeImageConstraints = [
         imageView.heightAnchor.constraint(
             equalTo: imageView.widthAnchor,
             multiplier: 21 / 40
-        ).priority(.defaultLow - 1),
+        )
+        // This priority is important or constraints break;
+        // it still renders the card correctly.
+        .priority(.defaultLow - 1),
     ]
 
     public override var isHighlighted: Bool {
-        didSet {
-            highlightView.isHidden = !isHighlighted
-        }
+        didSet { highlightView.isHidden = !isHighlighted }
     }
 
     public override init(frame: CGRect) {
@@ -55,6 +57,10 @@ public final class LinkPreviewButton: UIControl {
         layer.cornerCurve = .continuous
         layer.cornerRadius = 10
 
+        if #available(iOS 15, *) {
+            maximumContentSizeCategory = .accessibilityLarge
+        }
+
         highlightView.backgroundColor = UIColor.black.withAlphaComponent(0.1)
         highlightView.isHidden = true
 
@@ -101,6 +107,12 @@ public final class LinkPreviewButton: UIControl {
     public func configure(card: Card) {
         let isCompact = card.width == card.height
 
+        if let host = card.url?.host {
+            accessibilityLabel = "\(card.title) \(host)"
+        } else {
+            accessibilityLabel = card.title
+        }
+
         titleLabel.text = card.title
         linkLabel.text = card.url?.host
         imageView.contentMode = .center

MastodonSDK/Sources/MastodonUI/View/Content/StatusView+ViewModel.swift

@@ -316,7 +316,7 @@ extension StatusView.ViewModel {
             }
             
             statusView.contentMetaText.textView.alpha = isContentReveal ? 1 : 0     // keep the frame size and only display when revealing
-            statusView.linkPreviewButton.alpha = isContentReveal ? 1 : 0
+            statusView.statusCardControl.alpha = isContentReveal ? 1 : 0
             
             statusView.setSpoilerOverlayViewHidden(isHidden: isContentReveal)
             
@@ -490,8 +490,8 @@ extension StatusView.ViewModel {
     private func bindCard(statusView: StatusView) {
         $card.sink { card in
             guard let card = card else { return }
-            statusView.linkPreviewButton.configure(card: card)
-            statusView.setLinkPreviewButtonDisplay()
+            statusView.statusCardControl.configure(card: card)
+            statusView.setStatusCardControlDisplay()
         }
         .store(in: &disposeBag)
     }

MastodonSDK/Sources/MastodonUI/View/Content/StatusView.swift

@@ -115,7 +115,7 @@ public final class StatusView: UIView {
         return metaText
     }()
 
-    public let linkPreviewButton = LinkPreviewButton()
+    public let statusCardControl = StatusCardControl()
     
     // content warning
     public let spoilerOverlayView = SpoilerOverlayView()
@@ -220,7 +220,7 @@ public final class StatusView: UIView {
         setMediaDisplay(isDisplay: false)
         setPollDisplay(isDisplay: false)
         setFilterHintLabelDisplay(isDisplay: false)
-        setLinkPreviewButtonDisplay(isDisplay: false)
+        setStatusCardControlDisplay(isDisplay: false)
     }
 
     public override init(frame: CGRect) {
@@ -261,16 +261,13 @@ extension StatusView {
         // content
         contentMetaText.textView.delegate = self
         contentMetaText.textView.linkDelegate = self
-        
+
+        // card
+        statusCardControl.addTarget(self, action: #selector(statusCardControlPressed), for: .touchUpInside)
+
         // media
         mediaGridContainerView.delegate = self
 
-        linkPreviewButton.addTarget(
-            self,
-            action: #selector(linkPreviewButtonPressed),
-            for: .touchUpInside
-        )
-
         // poll
         pollTableView.translatesAutoresizingMaskIntoConstraints = false
         pollTableViewHeightLayoutConstraint = pollTableView.heightAnchor.constraint(equalToConstant: 44.0).priority(.required - 1)
@@ -306,7 +303,7 @@ extension StatusView {
         delegate?.statusView(self, spoilerOverlayViewDidPressed: spoilerOverlayView)
     }
 
-    @objc private func linkPreviewButtonPressed(_ sender: LinkPreviewButton) {
+    @objc private func statusCardControlPressed(_ sender: StatusCardControl) {
         logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public)")
         guard let url = viewModel.card?.url else { return }
         delegate?.statusView(self, didTapCardWithURL: url)
@@ -386,7 +383,7 @@ extension StatusView.Style {
         statusView.authorAdaptiveMarginContainerView.margin = StatusView.containerLayoutMargin
         statusView.containerStackView.addArrangedSubview(statusView.authorAdaptiveMarginContainerView)
 
-        // content container: V - [ contentMetaText ]
+        // content container: V - [ contentMetaText statusCardControl ]
         statusView.contentContainer.axis = .vertical
         statusView.contentContainer.spacing = 12
         statusView.contentContainer.distribution = .fill
@@ -400,7 +397,7 @@ extension StatusView.Style {
 
         // status content
         statusView.contentContainer.addArrangedSubview(statusView.contentMetaText.textView)
-        statusView.contentContainer.addArrangedSubview(statusView.linkPreviewButton)
+        statusView.contentContainer.addArrangedSubview(statusView.statusCardControl)
 
         statusView.spoilerOverlayView.translatesAutoresizingMaskIntoConstraints = false
         statusView.containerStackView.addSubview(statusView.spoilerOverlayView)
@@ -542,8 +539,8 @@ extension StatusView {
         filterHintLabel.isHidden = !isDisplay
     }
 
-    func setLinkPreviewButtonDisplay(isDisplay: Bool = true) {
-        linkPreviewButton.isHidden = !isDisplay
+    func setStatusCardControlDisplay(isDisplay: Bool = true) {
+        statusCardControl.isHidden = !isDisplay
     }
     
     // container width