Merge pull request #106 from pangeachat/lock-fixes

fix for bugs with locked room icons

lib/pages/chat/chat_event_list.dart

@@ -78,8 +78,7 @@ class ChatEventList extends StatelessWidget {
 
             // #Pangea
             if (i == 1) {
-              return (controller.room.locked ?? false) &&
-                      !controller.room.isRoomAdmin
+              return (controller.room.locked) && !controller.room.isRoomAdmin
                   ? const LockedChatMessage()
                   : const SizedBox.shrink();
             }

lib/pages/chat_details/chat_details_view.dart

@@ -556,12 +556,12 @@ class ChatDetailsView extends StatelessWidget {
                                   Theme.of(context).scaffoldBackgroundColor,
                               foregroundColor: iconColor,
                               child: Icon(
-                                room.locked ?? false
+                                room.locked
                                     ? Icons.lock_outlined
                                     : Icons.no_encryption_outlined,
                               ),
                             ),
-                            value: room.locked ?? false,
+                            value: room.locked,
                             onChanged: (value) => showFutureLoadingDialog(
                               context: context,
                               future: () => value

lib/pages/chat_list/chat_list_item.dart

@@ -373,7 +373,7 @@ class ChatListItem extends StatelessWidget {
                   ),
                   const SizedBox(width: 8),
                   // #Pangea
-                  if (room.locked ?? false)
+                  if (room.locked)
                     const Padding(
                       padding: EdgeInsets.only(right: 4.0),
                       child: Icon(

lib/pangea/extensions/pangea_room_extension.dart

@@ -923,17 +923,17 @@ extension PangeaRoom on Room {
       ?.content
       .tryGet<int>('events_default');
 
-  bool? get locked {
+  bool get locked {
     if (isDirectChat) return false;
     if (!isSpace) {
-      if (eventsDefaultPowerLevel == null) return null;
+      if (eventsDefaultPowerLevel == null) return false;
       return (eventsDefaultPowerLevel ?? 0) >=
           ClassDefaultValues.powerLevelOfAdmin;
     }
     for (final child in spaceChildren) {
       if (child.roomId == null) continue;
       final Room? room = client.getRoomById(child.roomId!);
-      if (room?.locked == false && (room?.canChangePowerLevel ?? false)) {
+      if (room?.locked == false) {
         return false;
       }
     }

lib/pangea/utils/lock_room.dart

@@ -17,7 +17,11 @@ Future<void> lockChat(Room room, Client client) async {
   final Map<String, dynamic> powerLevelsContent = Map<String, dynamic>.from(
     room.getState(EventTypes.RoomPowerLevels)!.content,
   );
+
   powerLevelsContent['events_default'] = 100;
+  if (!powerLevelsContent.containsKey('events')) {
+    powerLevelsContent['events'] = Map<String, dynamic>.from({});
+  }
   powerLevelsContent['events'][EventTypes.spaceChild] = 100;
 
   await room.client.setRoomStateWithKey(