Update RoomTiles on custom status change

src/components/views/rooms/RoomTile.js

@@ -112,7 +112,13 @@ module.exports = React.createClass({
                 this.setState({
                     notificationCount: this.props.room.getUnreadNotificationCount(),
                 });
-            break;
+                break;
+            // RoomTiles are one of the few components that may show custom status and
+            // also remain on screen while in Settings toggling the feature.  This ensures
+            // you can clearly see the status hide and show when toggling the feature.
+            case 'feature_custom_status_changed':
+                this.forceUpdate();
+                break;
         }
     },
 

src/settings/Settings.js

@@ -22,6 +22,7 @@ import {
     NotificationsEnabledController,
 } from "./controllers/NotificationControllers";
 import LazyLoadingController from "./controllers/LazyLoadingController";
+import CustomStatusController from "./controllers/CustomStatusController";
 
 // These are just a bunch of helper arrays to avoid copy/pasting a bunch of times
 const LEVELS_ROOM_SETTINGS = ['device', 'room-device', 'room-account', 'account', 'config'];
@@ -88,6 +89,7 @@ export const SETTINGS = {
         displayName: _td("Custom user status messages"),
         supportedLevels: LEVELS_FEATURE,
         default: false,
+        controller: new CustomStatusController(),
     },
     "feature_lazyloading": {
         isFeature: true,

src/settings/controllers/CustomStatusController.js

@@ -0,0 +1,29 @@
+/*
+Copyright 2019 New Vector Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import SettingController from "./SettingController";
+import dis from "../../dispatcher";
+
+export default class CustomStatusController extends SettingController {
+    onChange(level, roomId, newValue) {
+        // Dispatch setting change so that some components that are still visible when the
+        // Settings page is open (such as RoomTiles) can reflect the change.
+        dis.dispatch({
+            action: "feature_custom_status_changed",
+            value: newValue,
+        });
+    }
+}