ios: show chat previews & save last draft toggles (#2940)

* ios: show chat previews & save last draft toggles

* better view, toggle name

---------

Co-authored-by: Evgeny Poberezkin <2769109+epoberezkin@users.noreply.github.com>

apps/ios/Shared/Views/Chat/ComposeMessage/ComposeView.swift

@@ -255,6 +255,8 @@ struct ComposeView: View {
     // this is a workaround to fire an explicit event in certain cases
     @State private var stopPlayback: Bool = false
 
+    @AppStorage(DEFAULT_PRIVACY_SAVE_LAST_DRAFT) private var saveLastDraft = true
+
     var body: some View {
         VStack(spacing: 0) {
             contextItemView()
@@ -445,7 +447,15 @@ struct ComposeView: View {
             } else if (composeState.inProgress) {
                 clearCurrentDraft()
             } else if !composeState.empty  {
-                saveCurrentDraft()
+                if case .recording = composeState.voiceMessageRecordingState {
+                    finishVoiceMessageRecording()
+                    if let fileName = composeState.voiceMessageRecordingFileName {
+                        chatModel.filesToDelete.insert(getAppFilePath(fileName))
+                    }
+                }
+                if saveLastDraft {
+                    saveCurrentDraft()
+                }
             } else {
                 cancelCurrentVoiceRecording()
                 clearCurrentDraft()
@@ -864,12 +874,6 @@ struct ComposeView: View {
     }
 
     private func saveCurrentDraft() {
-        if case .recording = composeState.voiceMessageRecordingState {
-            finishVoiceMessageRecording()
-            if let fileName = composeState.voiceMessageRecordingFileName {
-                chatModel.filesToDelete.insert(getAppFilePath(fileName))
-            }
-        }
         chatModel.draft = composeState
         chatModel.draftChatId = chat.id
     }

apps/ios/Shared/Views/ChatList/ChatPreviewView.swift

@@ -15,6 +15,8 @@ struct ChatPreviewView: View {
     @Environment(\.colorScheme) var colorScheme
     var darkGreen = Color(red: 0, green: 0.5, blue: 0)
 
+    @AppStorage(DEFAULT_PRIVACY_SHOW_CHAT_PREVIEWS) private var showChatPreviews = true
+
     var body: some View {
         let cItem = chat.chatItems.last
         return HStack(spacing: 8) {
@@ -103,12 +105,17 @@ struct ChatPreviewView: View {
 
     private func chatPreviewLayout(_ text: Text) -> some View {
         ZStack(alignment: .topTrailing) {
-            text
+            let t = text
                 .lineLimit(2)
                 .multilineTextAlignment(.leading)
                 .frame(maxWidth: .infinity, alignment: .topLeading)
                 .padding(.leading, 8)
                 .padding(.trailing, 36)
+            if showChatPreviews {
+                t
+            } else {
+                t.privacySensitive(!showChatPreviews).redacted(reason: .privacy)
+            }
             let s = chat.chatStats
             if s.unreadCount > 0 || s.unreadChat {
                 unreadCountText(s.unreadCount)

apps/ios/Shared/Views/UserSettings/PrivacySettings.swift

@@ -13,6 +13,8 @@ struct PrivacySettings: View {
     @EnvironmentObject var m: ChatModel
     @AppStorage(DEFAULT_PRIVACY_ACCEPT_IMAGES) private var autoAcceptImages = true
     @AppStorage(DEFAULT_PRIVACY_LINK_PREVIEWS) private var useLinkPreviews = true
+    @AppStorage(DEFAULT_PRIVACY_SHOW_CHAT_PREVIEWS) private var showChatPreviews = true
+    @AppStorage(DEFAULT_PRIVACY_SAVE_LAST_DRAFT) private var saveLastDraft = true
     @State private var simplexLinkMode = privacySimplexLinkModeDefault.get()
     @AppStorage(DEFAULT_PRIVACY_PROTECT_SCREEN) private var protectScreen = false
     @AppStorage(DEFAULT_PERFORM_LA) private var prefPerformLA = false
@@ -70,6 +72,18 @@ struct PrivacySettings: View {
                     settingsRow("network") {
                         Toggle("Send link previews", isOn: $useLinkPreviews)
                     }
+                    settingsRow("message") {
+                        Toggle("Show last messages", isOn: $showChatPreviews)
+                    }
+                    settingsRow("rectangle.and.pencil.and.ellipsis") {
+                        Toggle("Message draft", isOn: $saveLastDraft)
+                    }
+                    .onChange(of: saveLastDraft) { saveDraft in
+                        if !saveDraft {
+                            m.draft = nil
+                            m.draftChatId = nil
+                        }
+                    }
                     settingsRow("link") {
                         Picker("SimpleX links", selection: $simplexLinkMode) {
                             ForEach(SimpleXLinkMode.values) { mode in

apps/ios/Shared/Views/UserSettings/SettingsView.swift

@@ -30,6 +30,8 @@ let DEFAULT_CALL_KIT_CALLS_IN_RECENTS = "callKitCallsInRecents"
 let DEFAULT_PRIVACY_ACCEPT_IMAGES = "privacyAcceptImages"
 let DEFAULT_PRIVACY_LINK_PREVIEWS = "privacyLinkPreviews"
 let DEFAULT_PRIVACY_SIMPLEX_LINK_MODE = "privacySimplexLinkMode"
+let DEFAULT_PRIVACY_SHOW_CHAT_PREVIEWS = "privacyShowChatPreviews"
+let DEFAULT_PRIVACY_SAVE_LAST_DRAFT = "privacySaveLastDraft"
 let DEFAULT_PRIVACY_PROTECT_SCREEN = "privacyProtectScreen"
 let DEFAULT_PRIVACY_DELIVERY_RECEIPTS_SET = "privacyDeliveryReceiptsSet"
 let DEFAULT_EXPERIMENTAL_CALLS = "experimentalCalls"
@@ -65,6 +67,8 @@ let appDefaults: [String: Any] = [
     DEFAULT_PRIVACY_ACCEPT_IMAGES: true,
     DEFAULT_PRIVACY_LINK_PREVIEWS: true,
     DEFAULT_PRIVACY_SIMPLEX_LINK_MODE: SimpleXLinkMode.description.rawValue,
+    DEFAULT_PRIVACY_SHOW_CHAT_PREVIEWS: true,
+    DEFAULT_PRIVACY_SAVE_LAST_DRAFT: true,
     DEFAULT_PRIVACY_PROTECT_SCREEN: false,
     DEFAULT_PRIVACY_DELIVERY_RECEIPTS_SET: false,
     DEFAULT_EXPERIMENTAL_CALLS: false,