Regenerate room lists on Room event

To make sure that we handle rooms that our
client has not seen previously, we regenerate
the room list when the room is stored -
which is indicated by the js-sdk by the
Room event.

src/actions/MatrixActionCreators.js

@@ -62,6 +62,10 @@ function createAccountDataAction(matrixClient, accountDataEvent) {
     };
 }
 
+function createRoomAction(matrixClient, room) {
+    return { action: 'MatrixActions.Room', room };
+}
+
 function createRoomTagsAction(matrixClient, roomTagsEvent, room) {
     return { action: 'MatrixActions.Room.tags', room };
 }
@@ -96,6 +100,7 @@ export default {
     start(matrixClient) {
         this._addMatrixClientListener(matrixClient, 'sync', createSyncAction);
         this._addMatrixClientListener(matrixClient, 'accountData', createAccountDataAction);
+        this._addMatrixClientListener(matrixClient, 'Room', createRoomAction);
         this._addMatrixClientListener(matrixClient, 'Room.tags', createRoomTagsAction);
         this._addMatrixClientListener(matrixClient, 'Room.timeline', createRoomTimelineAction);
         this._addMatrixClientListener(matrixClient, 'RoomMember.membership', createRoomMembershipAction);

src/stores/RoomListStore.js

@@ -97,6 +97,14 @@ class RoomListStore extends Store {
                 this._generateRoomLists();
             }
             break;
+            // This could be a new room that we've been invited to, joined or created
+            // we won't get a RoomMember.membership for these cases if we're not already
+            // a member.
+            case 'MatrixActions.Room': {
+                if (!this._state.ready || !this._matrixClient.credentials.userId) break;
+                this._generateRoomLists();
+            }
+            break;
             case 'RoomListActions.tagRoom.pending': {
                 // XXX: we only show one optimistic update at any one time.
                 // Ideally we should be making a list of in-flight requests