Notifications from lock screen - initial attempt to fix the issue

Signed-off-by: Dariusz Olszewski <starypatyk@users.noreply.github.com>

app/src/main/java/com/nextcloud/talk/activities/MainActivity.kt

@@ -87,6 +87,8 @@ class MainActivity : BaseActivity(), ActionBarProvider {
 
     private var router: Router? = null
 
+    var ignoreNextDetach: Boolean = false
+
     override fun onCreate(savedInstanceState: Bundle?) {
         Log.d(TAG, "onCreate: Activity: " + System.identityHashCode(this).toString())
 
@@ -178,6 +180,10 @@ class MainActivity : BaseActivity(), ActionBarProvider {
     override fun onResume() {
         Log.d(TAG, "onResume: Activity: " + System.identityHashCode(this).toString())
         super.onResume()
+        if (hasWindowFocus()) {
+            Log.d(TAG, "onResume: clear ignoreNextDetach")
+            ignoreNextDetach = false
+        }
     }
 
     override fun onPause() {
@@ -346,6 +352,8 @@ class MainActivity : BaseActivity(), ActionBarProvider {
                 intent.extras?.let { callNotificationIntent.putExtras(it) }
                 startActivity(callNotificationIntent)
             } else {
+                Log.d(TAG, "onNewIntent set ignoreNextDetach")
+                ignoreNextDetach = true
                 ConductorRemapping.remapChatController(
                     router!!, intent.getLongExtra(BundleKeys.KEY_INTERNAL_USER_ID, -1),
                     intent.getStringExtra(KEY_ROOM_TOKEN)!!, intent.extras!!, false

app/src/main/java/com/nextcloud/talk/controllers/ChatController.kt

@@ -1594,9 +1594,16 @@ class ChatController(args: Bundle) :
             !ApplicationWideCurrentRoomHolder.getInstance().isInCall &&
             !ApplicationWideCurrentRoomHolder.getInstance().isDialing
         ) {
-            ApplicationWideCurrentRoomHolder.getInstance().clear()
-            wasDetached = true
-            leaveRoom()
+            val mainActivity = activity as MainActivity
+            if (mainActivity.ignoreNextDetach) {
+                Log.d(TAG, "onDetach: ignoring Detach event Controller: " + System.identityHashCode(this).toString() +
+                    " Activity: " + System.identityHashCode(activity).toString())
+                mainActivity.ignoreNextDetach = false
+            } else {
+                ApplicationWideCurrentRoomHolder.getInstance().clear()
+                wasDetached = true
+                leaveRoom()
+            }
         }
 
         if (mentionAutocomplete != null && mentionAutocomplete!!.isPopupShowing) {