Add preference for requiring confirmation before reblogging

Tusker/Preferences/Preferences.swift

@@ -58,6 +58,7 @@ class Preferences: Codable, ObservableObject {
         self.expandAllContentWarnings = try container.decodeIfPresent(Bool.self, forKey: .expandAllContentWarnings) ?? false
         self.collapseLongPosts = try container.decodeIfPresent(Bool.self, forKey: .collapseLongPosts) ?? true
         self.oppositeCollapseKeywords = try container.decodeIfPresent([String].self, forKey: .oppositeCollapseKeywords) ?? []
+        self.confirmBeforeReblog = try container.decodeIfPresent(Bool.self, forKey: .confirmBeforeReblog) ?? false
         
         self.showFavoriteAndReblogCounts = try container.decode(Bool.self, forKey: .showFavoriteAndReblogCounts)
         self.defaultNotificationsMode = try container.decode(NotificationsMode.self, forKey: .defaultNotificationsType)
@@ -91,6 +92,7 @@ class Preferences: Codable, ObservableObject {
         try container.encode(expandAllContentWarnings, forKey: .expandAllContentWarnings)
         try container.encode(collapseLongPosts, forKey: .collapseLongPosts)
         try container.encode(oppositeCollapseKeywords, forKey: .oppositeCollapseKeywords)
+        try container.encode(confirmBeforeReblog, forKey: .confirmBeforeReblog)
         
         try container.encode(showFavoriteAndReblogCounts, forKey: .showFavoriteAndReblogCounts)
         try container.encode(defaultNotificationsMode, forKey: .defaultNotificationsType)
@@ -125,6 +127,7 @@ class Preferences: Codable, ObservableObject {
     @Published var expandAllContentWarnings = false
     @Published var collapseLongPosts = true
     @Published var oppositeCollapseKeywords: [String] = []
+    @Published var confirmBeforeReblog = false
     
     // MARK: Digital Wellness
     @Published var showFavoriteAndReblogCounts = true
@@ -157,6 +160,7 @@ class Preferences: Codable, ObservableObject {
         case expandAllContentWarnings
         case collapseLongPosts
         case oppositeCollapseKeywords
+        case confirmBeforeReblog
         
         case showFavoriteAndReblogCounts
         case defaultNotificationsType

Tusker/Screens/Preferences/BehaviorPrefsView.swift

@@ -13,14 +13,23 @@ struct BehaviorPrefsView: View {
 
     var body: some View {
         List {
+            untitledSection
             linksSection
             contentWarningsSection
         }
         .listStyle(InsetGroupedListStyle())
         .navigationBarTitle(Text("Behavior"))
     }
+    
+    private var untitledSection: some View {
+        Section {
+            Toggle(isOn: $preferences.confirmBeforeReblog) {
+                Text("Require Confirmation Before Reblogging")
+            }
+        }
+    }
 
-    var linksSection: some View {
+    private var linksSection: some View {
         Section(header: Text("Links")) {
             Toggle(isOn: $preferences.openLinksInApps) {
                 Text("Open Links in Apps")
@@ -34,7 +43,7 @@ struct BehaviorPrefsView: View {
         }
     }
     
-    var contentWarningsSection: some View {
+    private var contentWarningsSection: some View {
         Section(header: Text("Content Warnings")) {
             Toggle(isOn: $preferences.collapseLongPosts) {
                 Text("Collapse Long Posts")

Tusker/Views/Status/BaseStatusTableViewCell.swift

@@ -403,6 +403,23 @@ class BaseStatusTableViewCell: UITableViewCell {
     @IBAction func reblogPressed() {
         guard let status = mastodonController.persistentContainer.status(for: statusID) else { fatalError("Missing cached status \(statusID!)") }
         
+        // if we are about to reblog and the user has confirmation enabled
+        if !reblogged,
+           Preferences.shared.confirmBeforeReblog {
+            let alert = UIAlertController(title: "Confirm Reblog", message: "Are you sure you want to reblog this post by @\(status.account.acct)?", preferredStyle: .alert)
+            alert.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
+            alert.addAction(UIAlertAction(title: "Reblog", style: .default) { (_) in
+                self.toggleReblogInternal()
+            })
+            delegate?.present(alert, animated: true)
+        } else {
+            toggleReblogInternal()
+        }
+    }
+    
+    private func toggleReblogInternal() {
+        guard let status = mastodonController.persistentContainer.status(for: statusID) else { fatalError("Missing cached status \(statusID!)") }
+        
         let oldValue = reblogged
         reblogged = !reblogged