Add preference to hide attachment badges

Closes #354

Tusker/Preferences/Preferences.swift

@@ -65,6 +65,7 @@ class Preferences: Codable, ObservableObject {
         self.blurMediaBehindContentWarning = try container.decodeIfPresent(Bool.self, forKey: .blurMediaBehindContentWarning) ?? true
         self.automaticallyPlayGifs = try container.decode(Bool.self, forKey: .automaticallyPlayGifs)
         self.showUncroppedMediaInline = try container.decodeIfPresent(Bool.self, forKey: .showUncroppedMediaInline) ?? true
+        self.showAttachmentBadges = try container.decodeIfPresent(Bool.self, forKey: .showAttachmentBadges) ?? true
         
         self.openLinksInApps = try container.decode(Bool.self, forKey: .openLinksInApps)
         self.useInAppSafari = try container.decode(Bool.self, forKey: .useInAppSafari)
@@ -116,6 +117,7 @@ class Preferences: Codable, ObservableObject {
         try container.encode(blurMediaBehindContentWarning, forKey: .blurMediaBehindContentWarning)
         try container.encode(automaticallyPlayGifs, forKey: .automaticallyPlayGifs)
         try container.encode(showUncroppedMediaInline, forKey: .showUncroppedMediaInline)
+        try container.encode(showAttachmentBadges, forKey: .showAttachmentBadges)
         
         try container.encode(openLinksInApps, forKey: .openLinksInApps)
         try container.encode(useInAppSafari, forKey: .useInAppSafari)
@@ -175,6 +177,7 @@ class Preferences: Codable, ObservableObject {
     @Published var blurMediaBehindContentWarning = true
     @Published var automaticallyPlayGifs = true
     @Published var showUncroppedMediaInline = true
+    @Published var showAttachmentBadges = true
     
     // MARK: Behavior
     @Published var openLinksInApps = true
@@ -229,6 +232,7 @@ class Preferences: Codable, ObservableObject {
         case blurMediaBehindContentWarning
         case automaticallyPlayGifs
         case showUncroppedMediaInline
+        case showAttachmentBadges
         
         case openLinksInApps
         case useInAppSafari

Tusker/Screens/Preferences/MediaPrefsView.swift

@@ -42,6 +42,10 @@ struct MediaPrefsView: View {
             Toggle(isOn: $preferences.showUncroppedMediaInline) {
                 Text("Show Uncropped Media Inline")
             }
+            
+            Toggle(isOn: $preferences.showAttachmentBadges) {
+                Text("Show GIF/ALT Badges")
+            }
         }
         .appGroupedListRowBackground()
     }

Tusker/Views/Attachments/AttachmentView.swift

@@ -23,6 +23,7 @@ class AttachmentView: GIFImageView {
 
     var playImageView: UIImageView?
     var gifvView: GifvAttachmentView?
+    private var badgeContainer: UIStackView?
     
     var attachment: Attachment!
     var index: Int!
@@ -77,6 +78,10 @@ class AttachmentView: GIFImageView {
                 self.displayImage()
             }
         }
+        
+        if getBadges().isEmpty != Preferences.shared.showAttachmentBadges {
+            createBadgesView(getBadges())
+        }
     }
     
     @objc private func gifPlaybackModeChanged() {
@@ -127,14 +132,7 @@ class AttachmentView: GIFImageView {
             }
         }
         
-        var badges: Badges = []
-        if attachment.description?.isEmpty == false {
-            badges.formUnion(.alt)
-        }
-        if attachment.kind == .gifv || attachment.url.pathExtension == "gif" {
-            badges.formUnion(.gif)
-        }
-        createBadgesView(badges)
+        createBadgesView(getBadges())
         
         switch attachment.kind {
         case .image:
@@ -150,6 +148,20 @@ class AttachmentView: GIFImageView {
         }
     }
     
+    private func getBadges() -> Badges {
+        guard Preferences.shared.showAttachmentBadges else {
+            return []
+        }
+        var badges: Badges = []
+        if attachment.description?.isEmpty == false {
+            badges.formUnion(.alt)
+        }
+        if attachment.kind == .gifv || attachment.url.pathExtension == "gif" {
+            badges.formUnion(.gif)
+        }
+        return badges
+    }
+    
     var attachmentAspectRatio: CGFloat? {
         if let meta = self.attachment.meta {
             if let width = meta.width, let height = meta.height {
@@ -313,10 +325,13 @@ class AttachmentView: GIFImageView {
     
     private func createBadgesView(_ badges: Badges) {
         guard !badges.isEmpty else {
+            badgeContainer?.removeFromSuperview()
+            badgeContainer = nil
             return
         }
         
         let stack = UIStackView()
+        self.badgeContainer = stack
         stack.axis = .horizontal
         stack.spacing = 2
         stack.translatesAutoresizingMaskIntoConstraints = false