Handle call closed event

lib/helpers/events_helper.dart

@@ -86,6 +86,13 @@ class UserLeftCallEvent {
   UserLeftCallEvent(this.callID, this.userID);
 }
 
+/// Call closed event
+class CallClosedEvent {
+  final int callID;
+
+  CallClosedEvent(this.callID);
+}
+
 class EventsHelper {
   static EventBus _mgr = EventBus();
 

lib/helpers/websocket_helper.dart

@@ -173,6 +173,11 @@ class WebSocketHelper {
             UserLeftCallEvent(msg.data["callID"], msg.data["userID"]));
         break;
 
+      // The call has been close
+      case "call_closed":
+        EventsHelper.emit(CallClosedEvent(msg.data));
+        break;
+
       default:
         throw Exception("Unknown message type: ${msg.title}");
     }

lib/ui/screens/call_screen.dart

@@ -7,6 +7,7 @@ import 'package:comunic/lists/users_list.dart';
 import 'package:comunic/models/call_config.dart';
 import 'package:comunic/models/call_member.dart';
 import 'package:comunic/models/conversation.dart';
+import 'package:comunic/ui/routes/main_route.dart';
 import 'package:comunic/ui/widgets/comunic_back_button_widget.dart';
 import 'package:comunic/ui/widgets/safe_state.dart';
 import 'package:comunic/utils/account_utils.dart';
@@ -88,12 +89,17 @@ class _CallScreenState extends SafeState<CallScreen> {
       this.listen<UserLeftCallEvent>((e) {
         if (e.callID == convID) _removeMember(e.userID);
       });
+
+      this.listen<CallClosedEvent>((e) {
+        if (e.callID == convID) _leaveCall();
+      });
     } catch (e, stack) {
       print("Could not initialize call! $e\n$stack");
       setState(() => _error = true);
     }
   }
 
+  // Do clean up operations when call screen is destroyed
   void _endCall() async {
     try {
       // Leave the call
@@ -103,6 +109,11 @@ class _CallScreenState extends SafeState<CallScreen> {
     }
   }
 
+  // Make us leave the call
+  void _leaveCall() {
+    MainController.of(context).popPage();
+  }
+
   void _removeMember(int memberID) {
     _membersList.removeUser(memberID);
     setState(() {});