Add preference to hide link preview cards

Closes #329

Tusker/Preferences/Preferences.swift

@@ -44,6 +44,7 @@ class Preferences: Codable, ObservableObject {
         self.showIsStatusReplyIcon = try container.decode(Bool.self, forKey: .showIsStatusReplyIcon)
         self.alwaysShowStatusVisibilityIcon = try container.decode(Bool.self, forKey: .alwaysShowStatusVisibilityIcon)
         self.hideActionsInTimeline = try container.decodeIfPresent(Bool.self, forKey: .hideActionsInTimeline) ?? false
+        self.showLinkPreviews = try container.decodeIfPresent(Bool.self, forKey: .showLinkPreviews) ?? true
         self.leadingStatusSwipeActions = try container.decodeIfPresent([StatusSwipeAction].self, forKey: .leadingStatusSwipeActions) ?? leadingStatusSwipeActions
         self.trailingStatusSwipeActions = try container.decodeIfPresent([StatusSwipeAction].self, forKey: .trailingStatusSwipeActions) ?? trailingStatusSwipeActions
         
@@ -97,6 +98,7 @@ class Preferences: Codable, ObservableObject {
         try container.encode(showIsStatusReplyIcon, forKey: .showIsStatusReplyIcon)
         try container.encode(alwaysShowStatusVisibilityIcon, forKey: .alwaysShowStatusVisibilityIcon)
         try container.encode(hideActionsInTimeline, forKey: .hideActionsInTimeline)
+        try container.encode(showLinkPreviews, forKey: .showLinkPreviews)
         try container.encode(leadingStatusSwipeActions, forKey: .leadingStatusSwipeActions)
         try container.encode(trailingStatusSwipeActions, forKey: .trailingStatusSwipeActions)
         
@@ -144,6 +146,7 @@ class Preferences: Codable, ObservableObject {
     @Published var showIsStatusReplyIcon = false
     @Published var alwaysShowStatusVisibilityIcon = false
     @Published var hideActionsInTimeline = false
+    @Published var showLinkPreviews = true
     @Published var leadingStatusSwipeActions: [StatusSwipeAction] = [.favorite, .reblog]
     @Published var trailingStatusSwipeActions: [StatusSwipeAction] = [.reply, .share]
     
@@ -205,6 +208,7 @@ class Preferences: Codable, ObservableObject {
         case showIsStatusReplyIcon
         case alwaysShowStatusVisibilityIcon
         case hideActionsInTimeline
+        case showLinkPreviews
         case leadingStatusSwipeActions
         case trailingStatusSwipeActions
         

Tusker/Screens/Preferences/AppearancePrefsView.swift

@@ -84,6 +84,9 @@ struct AppearancePrefsView : View {
             Toggle(isOn: $preferences.hideActionsInTimeline) {
                 Text("Hide Actions on Timeline")
             }
+            Toggle(isOn: $preferences.showLinkPreviews) {
+                Text("Show Link Previews")
+            }
             NavigationLink("Leading Swipe Actions") {
                 SwipeActionsPrefsView(selection: $preferences.leadingStatusSwipeActions)
                     .edgesIgnoringSafeArea(.all)

Tusker/Views/Status/StatusCollectionViewCell.swift

@@ -83,17 +83,21 @@ extension StatusCollectionViewCell {
         accountID = status.account.id
         
         updateAccountUI(account: status.account)
-        updateUIForPreferences(status: status)
         
         contentContainer.contentTextView.setTextFrom(status: status, precomputed: precomputedContent)
         contentContainer.contentTextView.navigationDelegate = delegate
         contentContainer.attachmentsView.delegate = self
         contentContainer.attachmentsView.updateUI(status: status)
-        contentContainer.cardView.updateUI(status: status)
-        contentContainer.cardView.isHidden = status.card == nil
-        contentContainer.cardView.navigationDelegate = delegate
-        contentContainer.cardView.actionProvider = delegate
+        if Preferences.shared.showLinkPreviews {
+            contentContainer.cardView.updateUI(status: status)
+            contentContainer.cardView.isHidden = status.card == nil
+            contentContainer.cardView.navigationDelegate = delegate
+            contentContainer.cardView.actionProvider = delegate
+        } else {
+            contentContainer.cardView.isHidden = true
+        }
         
+        updateUIForPreferences(status: status)
         updateStatusState(status: status)
         
         contentWarningLabel.text = status.spoilerText
@@ -150,6 +154,12 @@ extension StatusCollectionViewCell {
     
     func baseUpdateUIForPreferences(status: StatusMO) {
         avatarImageView.layer.cornerRadius = Preferences.shared.avatarStyle.cornerRadiusFraction * Self.avatarImageViewSize
+        
+        let newCardHidden = !Preferences.shared.showLinkPreviews || status.card == nil
+        if contentContainer.cardView.isHidden != newCardHidden {
+            delegate?.statusCellNeedsReconfigure(self, animated: false, completion: nil)
+        }
+        
         switch Preferences.shared.attachmentBlurMode {
         case .never:
             contentContainer.attachmentsView.contentHidden = false