fix(rn, web) await initialisation before dispatching appWillMount

react/features/app/components/AbstractApp.js

@@ -38,14 +38,12 @@ export class AbstractApp extends BaseApp<Props, *> {
      *
      * @inheritdoc
      */
-    componentDidMount() {
+    async componentDidMount() {
-        super.componentDidMount();
+        await super.componentDidMount();
 
-        this._init.then(() => {
         // If a URL was explicitly specified to this React Component, then
         // open it; otherwise, use a default.
         this._openURL(toURLString(this.props.url) || this._getDefaultURL());
-        });
     }
 
     /**
@@ -53,13 +51,14 @@ export class AbstractApp extends BaseApp<Props, *> {
      *
      * @inheritdoc
      */
-    componentDidUpdate(prevProps: Props) {
+    async componentDidUpdate(prevProps: Props) {
         const previousUrl = toURLString(prevProps.url);
         const currentUrl = toURLString(this.props.url);
         const previousTimestamp = prevProps.timestamp;
         const currentTimestamp = this.props.timestamp;
 
-        this._init.then(() => {
+        await this._init;
+
         // Deal with URL changes.
 
         if (previousUrl !== currentUrl
@@ -69,7 +68,6 @@ export class AbstractApp extends BaseApp<Props, *> {
             || previousTimestamp !== currentTimestamp) {
             this._openURL(currentUrl || this._getDefaultURL());
         }
-        });
     }
 
     /**

react/features/app/components/App.native.js

@@ -81,12 +81,18 @@ export class App extends AbstractApp {
      *
      * @returns {void}
      */
-    componentDidMount() {
+    async componentDidMount() {
-        super.componentDidMount();
+        await super.componentDidMount();
 
         SplashScreen.hide();
+    }
 
-        this._init.then(() => {
+    /**
+     * Initializes feature flags and updates settings.
+     *
+     * @returns {void}
+     */
+    _extraInit() {
         const { dispatch, getState } = this.state.store;
 
         // We set these early enough so then we avoid any unnecessary re-renders.
@@ -114,7 +120,6 @@ export class App extends AbstractApp {
         if (typeof callIntegrationEnabled !== 'undefined') {
             dispatch(updateSettings({ disableCallIntegration: !callIntegrationEnabled }));
         }
-        });
     }
 
     /**

react/features/base/app/components/BaseApp.js

@@ -16,6 +16,7 @@ import {
     StateListenerRegistry
 } from '../../redux';
 import { SoundCollection } from '../../sounds';
+import { createDeferred } from '../../util';
 import { appWillMount, appWillUnmount } from '../actions';
 import logger from '../logger';
 
@@ -43,7 +44,10 @@ type State = {
  * @abstract
  */
 export default class BaseApp extends Component<*, State> {
-    _init: Promise<*>;
+    /**
+     * The deferred for the initialisation {{promise, resolve, reject}}.
+     */
+    _init: Object;
 
     /**
      * Initializes a new {@code BaseApp} instance.
@@ -65,7 +69,7 @@ export default class BaseApp extends Component<*, State> {
      *
      * @inheritdoc
     */
-    componentDidMount() {
+    async componentDidMount() {
         /**
          * Make the mobile {@code BaseApp} wait until the {@code AsyncStorage}
          * implementation of {@code Storage} initializes fully.
@@ -74,21 +78,28 @@ export default class BaseApp extends Component<*, State> {
          * @see {@link #_initStorage}
          * @type {Promise}
          */
-        this._init = this._initStorage()
+        this._init = createDeferred();
-            .catch(err => {
+
-                /* BaseApp should always initialize! */
+        try {
-                logger.error(err);
+            await this._initStorage();
-            })
+
-            .then(() => new Promise(resolve => {
+            const setStatePromise = new Promise(resolve => {
                 this.setState({
                     store: this._createStore()
                 }, resolve);
-            }))
+            });
-            .then(() => this.state.store.dispatch(appWillMount(this)))
+
-            .catch(err => {
+            await setStatePromise;
+
+            await this._extraInit();
+        } catch (err) {
             /* BaseApp should always initialize! */
             logger.error(err);
-            });
+        }
+
+        this.state.store.dispatch(appWillMount(this));
+
+        this._init.resolve();
     }
 
     /**
@@ -127,6 +138,15 @@ export default class BaseApp extends Component<*, State> {
         return _initializing || Promise.resolve();
     }
 
+    /**
+     * Extra initialisation that subclasses might require.
+     *
+     * @returns {void}
+     */
+    _extraInit() {
+        // To be implemented by subclass.
+    }
+
     /**
      * Implements React's {@link Component#render()}.
      *

react/features/mobile/incoming-call/components/IncomingCallApp.js

@@ -43,10 +43,9 @@ export default class IncomingCallApp extends BaseApp<Props> {
      *
      * @returns {void}
      */
-    componentDidMount() {
+    async componentDidMount() {
-        super.componentDidMount();
+        await super.componentDidMount();
 
-        this._init.then(() => {
         const { dispatch } = this.state.store;
         const {
             callerAvatarURL: avatarUrl,
@@ -61,6 +60,5 @@ export default class IncomingCallApp extends BaseApp<Props> {
         }));
 
         super._navigate({ component: IncomingCallPage });
-        });
     }
 }

react/features/prejoin/components/PrejoinApp.js

@@ -36,10 +36,9 @@ export default class PrejoinApp extends BaseApp<Props> {
      *
      * @returns {void}
      */
-    componentDidMount() {
+    async componentDidMount() {
-        super.componentDidMount();
+        await super.componentDidMount();
 
-        this._init.then(async () => {
         const { store } = this.state;
         const { dispatch } = store;
         const { styleType } = this.props;
@@ -69,7 +68,6 @@ export default class PrejoinApp extends BaseApp<Props> {
             dispatch(initPrejoin(tracks, errors));
             dispatch(makePrecallTest(getConferenceOptions(store.getState())));
         });
-        });
     }
 
     /**