Merge pull request #1976 from vector-im/riot_1975

BF: Empty app if initial /sync fails

CHANGES.rst

@@ -1,3 +1,9 @@
+Changes in 0.7.1 (2018-08-14)
+===============================================
+
+Bug fix:
+ * Empty app if initial /sync fails (#1975).
+
 Changes in 0.7.0 (2018-08-10)
 ===============================================
 

Riot/AppDelegate.m

@@ -599,6 +599,18 @@ NSString *const kAppDelegateNetworkStatusDidChangeNotification = @"kAppDelegateN
     }
     
     // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+
+    // Check if an initial sync failure occured while the app was in background
+    MXSession *mainSession = self.mxSessions.firstObject;
+    if (mainSession.state == MXSessionStateInitialSyncFailed)
+    {
+        // Inform the end user why the app appears blank
+        NSError *error = [NSError errorWithDomain:NSURLErrorDomain
+                                             code:NSURLErrorCannotConnectToHost
+                                         userInfo:@{NSLocalizedDescriptionKey : NSLocalizedStringFromTable(@"homeserver_connection_lost", @"Vector", nil)}];
+
+        [self showErrorAsAlert:error];
+    }
     
     // Register to GDPR consent not given notification
     [self registerUserConsentNotGivenNotification];

Riot/Assets/en.lproj/Vector.strings

@@ -537,6 +537,7 @@
 "today" = "Today";
 "yesterday" = "Yesterday";
 "network_offline_prompt" = "The Internet connection appears to be offline.";
+"homeserver_connection_lost" = "Could not connect to the homeserver.";
 "public_room_section_title" = "Public Rooms (at %@):";
 "bug_report_prompt" = "The application has crashed last time. Would you like to submit a crash report?";
 "rage_shake_prompt" = "You seem to be shaking the phone in frustration. Would you like to submit a bug report?";