Merge branch 'dev' of https://github.com/oxen-io/session-ios into unsend-message

Session/Conversations/ConversationVC+Interaction.swift

@@ -468,6 +468,15 @@ extension ConversationVC : InputViewDelegate, MessageCellDelegate, ContextMenuAc
             }
         }
     }
+    
+    func handleViewItemSwiped(_ viewItem: ConversationViewItem, state: SwipeState) {
+        switch state {
+        case .began:
+            messagesTableView.isScrollEnabled = false
+        case .ended, .cancelled:
+            messagesTableView.isScrollEnabled = true
+        }
+    }
 
     func showFailedMessageSheet(for tsMessage: TSOutgoingMessage) {
         let thread = self.thread

Session/Conversations/Message Cells/MessageCell.swift

@@ -1,5 +1,11 @@
 import UIKit
 
+public enum SwipeState {
+    case began
+    case ended
+    case cancelled
+}
+
 class MessageCell : UITableViewCell {
     weak var delegate: MessageCellDelegate?
     var viewItem: ConversationViewItem? { didSet { update() } }
@@ -55,6 +61,7 @@ protocol MessageCellDelegate : AnyObject {
     func handleViewItemLongPressed(_ viewItem: ConversationViewItem)
     func handleViewItemTapped(_ viewItem: ConversationViewItem, gestureRecognizer: UITapGestureRecognizer)
     func handleViewItemDoubleTapped(_ viewItem: ConversationViewItem)
+    func handleViewItemSwiped(_ viewItem: ConversationViewItem, state: SwipeState)
     func showFullText(_ viewItem: ConversationViewItem)
     func openURL(_ url: URL)
     func handleReplyButtonTapped(for viewItem: ConversationViewItem)

Session/Conversations/Message Cells/VisibleMessageCell.swift

@@ -475,9 +475,12 @@ final class VisibleMessageCell : MessageCell, LinkPreviewViewDelegate {
     }
     
     @objc private func handlePan(_ gestureRecognizer: UIPanGestureRecognizer) {
+        guard let viewItem = viewItem else { return }
         let viewsToMove = [ bubbleView, profilePictureView, replyButton, timerView, messageStatusImageView ]
         let translationX = gestureRecognizer.translation(in: self).x.clamp(-CGFloat.greatestFiniteMagnitude, 0)
         switch gestureRecognizer.state {
+        case .began:
+            delegate?.handleViewItemSwiped(viewItem, state: .began)
         case .changed:
             // The idea here is to asymptotically approach a maximum drag distance
             let damping: CGFloat = 20
@@ -495,8 +498,10 @@ final class VisibleMessageCell : MessageCell, LinkPreviewViewDelegate {
             previousX = translationX
         case .ended, .cancelled:
             if abs(translationX) > VisibleMessageCell.swipeToReplyThreshold {
+                delegate?.handleViewItemSwiped(viewItem, state: .ended)
                 reply()
             } else {
+                delegate?.handleViewItemSwiped(viewItem, state: .cancelled)
                 resetReply()
             }
         default: break

Session/Meta/AppDelegate.m

@@ -194,7 +194,7 @@ static NSTimeInterval launchStartedAt;
     mainWindow.rootViewController = [LoadingViewController new];
     [mainWindow makeKeyAndVisible];
 
-    LKAppMode appMode = [NSUserDefaults.standardUserDefaults integerForKey:@"appMode"];
+    LKAppMode appMode = [self getAppModeOrSystemDefault];
     [self setCurrentAppMode:appMode];
 
     if (@available(iOS 11, *)) {
@@ -245,7 +245,7 @@ static NSTimeInterval launchStartedAt;
 
     [self ensureRootViewController];
 
-    LKAppMode appMode = [NSUserDefaults.standardUserDefaults integerForKey:@"appMode"];
+    LKAppMode appMode = [self getCurrentAppMode];
     [self setCurrentAppMode:appMode];
 
     [AppReadiness runNowOrWhenAppDidBecomeReady:^{

Session/Meta/AppDelegate.swift

@@ -40,4 +40,20 @@ extension AppDelegate {
     @objc func stopClosedGroupPoller() {
         ClosedGroupPoller.shared.stop()
     }
+    
+    @objc func getAppModeOrSystemDefault() -> AppMode {
+        let userDefaults = UserDefaults.standard
+        
+        guard userDefaults.dictionaryRepresentation().keys.contains("appMode") else {
+            if #available(iOS 13.0, *) {
+                return UITraitCollection.current.userInterfaceStyle == .dark ? .dark : .light
+            } else {
+                return .light
+            }
+        }
+        
+        let mode = userDefaults.integer(forKey: "appMode")
+        return AppMode(rawValue: mode) ?? .light
+    }
+    
 }