Merge branch 'dev' into deferred-attachment-downloads

Session/Conversations/ConversationVC+Interaction.swift

@@ -1,5 +1,6 @@
 import CoreServices
 import Photos
+import PhotosUI
 
 extension ConversationVC : InputViewDelegate, MessageCellDelegate, ContextMenuActionDelegate, ScrollToBottomButtonDelegate,
     SendMediaNavDelegate, UIDocumentPickerDelegate, AttachmentApprovalViewControllerDelegate, GifPickerViewControllerDelegate,
@@ -91,12 +92,14 @@ extension ConversationVC : InputViewDelegate, MessageCellDelegate, ContextMenuAc
     }
     
     func handleLibraryButtonTapped() {
-        // FIXME: We're not yet handling the case where the user only gives access to selected photos/videos
+        requestLibraryPermissionIfNeeded { [weak self] in
-        guard requestLibraryPermissionIfNeeded() else { return }
+            DispatchQueue.main.async {
-        let sendMediaNavController = SendMediaNavigationController.showingMediaLibraryFirst()
+                let sendMediaNavController = SendMediaNavigationController.showingMediaLibraryFirst()
-        sendMediaNavController.sendMediaNavDelegate = self
+                sendMediaNavController.sendMediaNavDelegate = self
-        sendMediaNavController.modalPresentationStyle = .fullScreen
+                sendMediaNavController.modalPresentationStyle = .fullScreen
-        present(sendMediaNavController, animated: true, completion: nil)
+                self?.present(sendMediaNavController, animated: true, completion: nil)
+            }
+        }
     }
     
     func handleGIFButtonTapped() {
@@ -752,19 +755,54 @@ extension ConversationVC : InputViewDelegate, MessageCellDelegate, ContextMenuAc
         }
     }
 
-    func requestLibraryPermissionIfNeeded() -> Bool {
+    func requestLibraryPermissionIfNeeded(onAuthorized: @escaping () -> Void) {
-        switch PHPhotoLibrary.authorizationStatus() {
+        let authorizationStatus: PHAuthorizationStatus
-        case .authorized, .limited: return true
+        if #available(iOS 14, *) {
+            authorizationStatus = PHPhotoLibrary.authorizationStatus(for: .readWrite)
+            if authorizationStatus == .notDetermined {
+                // When the user chooses to select photos (which is the .limit status),
+                // the PHPhotoUI will present the picker view on the top of the front view.
+                // Since we have the ScreenLockUI showing when we request premissions,
+                // the picker view will be presented on the top of the ScreenLockUI.
+                // However, the ScreenLockUI will dismiss with the permission request alert view, so
+                // the picker view then will dismiss, too. The selection process cannot be finished
+                // this way. So we add a flag (isRequestingPermission) to prevent the ScreenLockUI
+                // from showing when we request the photo library permission.
+                Environment.shared.isRequestingPermission = true
+                let appMode = AppModeManager.shared.currentAppMode
+                // FIXME: Rather than setting the app mode to light and then to dark again once we're done,
+                // it'd be better to just customize the appearance of the image picker. There doesn't currently
+                // appear to be a good way to do so though...
+                AppModeManager.shared.setCurrentAppMode(to: .light)
+                PHPhotoLibrary.requestAuthorization(for: .readWrite) { status in
+                    DispatchQueue.main.async {
+                        AppModeManager.shared.setCurrentAppMode(to: appMode)
+                    }
+                    Environment.shared.isRequestingPermission = false
+                    if [ PHAuthorizationStatus.authorized, PHAuthorizationStatus.limited ].contains(status) {
+                        onAuthorized()
+                    }
+                }
+            }
+        } else {
+            authorizationStatus = PHPhotoLibrary.authorizationStatus()
+            if authorizationStatus == .notDetermined {
+                PHPhotoLibrary.requestAuthorization { status in
+                    if status == .authorized {
+                        onAuthorized()
+                    }
+                }
+            }
+        }
+        switch authorizationStatus {
+        case .authorized, .limited:
+            onAuthorized()
         case .denied, .restricted:
             let modal = PermissionMissingModal(permission: "library") { }
             modal.modalPresentationStyle = .overFullScreen
             modal.modalTransitionStyle = .crossDissolve
             present(modal, animated: true, completion: nil)
-            return false
+        default: return
-        case .notDetermined:
-            PHPhotoLibrary.requestAuthorization { _ in }
-            return false
-        default: return false
         }
     }
 

Session/Conversations/ConversationViewModel.m

@@ -173,7 +173,7 @@ NS_ASSUME_NONNULL_BEGIN
 static const int kYapDatabasePageSize = 100;
 
 // Never show more than n messages in conversation view when user arrives.
-static const int kConversationInitialMaxRangeSize = 25000; // TODO: Does it cause issues to set this so high?
+static const int kConversationInitialMaxRangeSize = 100;
 
 // Never show more than n messages in conversation view at a time.
 static const int kYapDatabaseRangeMaxLength = 25000;

Session/Meta/Session-Info.plist

@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>PHPhotoLibraryPreventAutomaticLimitedAccessAlert</key>
+	<true/>
 	<key>BuildDetails</key>
 	<dict>
 		<key>CarthageVersion</key>
@@ -80,7 +82,7 @@
 	<key>NSContactsUsageDescription</key>
 	<string>Signal uses your contacts to find users you know. We do not store your contacts on the server.</string>
 	<key>NSFaceIDUsageDescription</key>
-	<string>Session's Screen Lock feature uses Face ID.</string>
+	<string>Session&apos;s Screen Lock feature uses Face ID.</string>
 	<key>NSMicrophoneUsageDescription</key>
 	<string>Session needs access to your microphone to record media.</string>
 	<key>NSPhotoLibraryAddUsageDescription</key>

Session/Shared/OWSScreenLockUI.m

@@ -347,6 +347,10 @@ NS_ASSUME_NONNULL_BEGIN
         OWSLogVerbose(@"desiredUIState: none 3.");
         return ScreenLockUIStateNone;
     }
+    
+    if (Environment.shared.isRequestingPermission) {
+        return ScreenLockUIStateNone;
+    }
 
     if (Environment.shared.preferences.screenSecurityIsEnabled) {
         OWSLogVerbose(@"desiredUIState: screen protection 4.");

SessionMessagingKit/Utilities/Environment.h

@@ -29,6 +29,8 @@
 @property (nonatomic, readonly) OWSPreferences *preferences;
 @property (nonatomic, readonly) OWSSounds *sounds;
 @property (nonatomic, readonly) OWSWindowManager *windowManager;
+// We don't want to cover the window when we request the photo library permission
+@property (nonatomic, readwrite) BOOL isRequestingPermission;
 
 @property (class, nonatomic) Environment *shared;
 

SessionMessagingKit/Utilities/Environment.m

@@ -58,6 +58,7 @@ static Environment *sharedEnvironment = nil;
     _proximityMonitoringManager = proximityMonitoringManager;
     _sounds = sounds;
     _windowManager = windowManager;
+    _isRequestingPermission = false;
 
     return self;
 }

SignalUtilitiesKit/Utilities/ThreadUtil.m

@@ -198,14 +198,6 @@ NS_ASSUME_NONNULL_BEGIN
                                 visibleUnseenMessageCount++;
 
                                 interactionAfterUnreadIndicator = interaction;
-
-                                if (visibleUnseenMessageCount + 1 >= maxRangeSize) {
-                                    // If there are more unseen messages than can be displayed in the
-                                    // messages view, show the unread indicator at the top of the
-                                    // displayed messages.
-                                    *stop = YES;
-                                    hasMoreUnseenMessages = YES;
-                                }
                             }];
 
     if (!interactionAfterUnreadIndicator) {