mirror of
https://github.com/element-hq/element-web.git
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110 lines
3.5 KiB
JavaScript
110 lines
3.5 KiB
JavaScript
/*
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Copyright 2018 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import EventEmitter from 'events';
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import { MatrixClientPeg } from '../MatrixClientPeg';
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import { WidgetMessagingStore } from "./widgets/WidgetMessagingStore";
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/**
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* Stores information about the widgets active in the app right now:
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* * What widget is set to remain always-on-screen, if any
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* Only one widget may be 'always on screen' at any one time.
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* * Negotiated capabilities for active apps
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*/
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class ActiveWidgetStore extends EventEmitter {
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constructor() {
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super();
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this._persistentWidgetId = null;
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// What room ID each widget is associated with (if it's a room widget)
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this._roomIdByWidgetId = {};
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this.onRoomStateEvents = this.onRoomStateEvents.bind(this);
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this.dispatcherRef = null;
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}
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start() {
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MatrixClientPeg.get().on('RoomState.events', this.onRoomStateEvents);
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}
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stop() {
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if (MatrixClientPeg.get()) {
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MatrixClientPeg.get().removeListener('RoomState.events', this.onRoomStateEvents);
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}
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this._roomIdByWidgetId = {};
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}
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onRoomStateEvents(ev, state) {
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// XXX: This listens for state events in order to remove the active widget.
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// Everything else relies on views listening for events and calling setters
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// on this class which is terrible. This store should just listen for events
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// and keep itself up to date.
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// TODO: Enable support for m.widget event type (https://github.com/vector-im/element-web/issues/13111)
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if (ev.getType() !== 'im.vector.modular.widgets') return;
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if (ev.getStateKey() === this._persistentWidgetId) {
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this.destroyPersistentWidget(this._persistentWidgetId);
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}
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}
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destroyPersistentWidget(id) {
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if (id !== this._persistentWidgetId) return;
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const toDeleteId = this._persistentWidgetId;
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WidgetMessagingStore.instance.stopMessagingById(id);
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this.setWidgetPersistence(toDeleteId, false);
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this.delRoomId(toDeleteId);
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}
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setWidgetPersistence(widgetId, val) {
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if (this._persistentWidgetId === widgetId && !val) {
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this._persistentWidgetId = null;
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} else if (this._persistentWidgetId !== widgetId && val) {
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this._persistentWidgetId = widgetId;
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}
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this.emit('update');
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}
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getWidgetPersistence(widgetId) {
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return this._persistentWidgetId === widgetId;
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}
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getPersistentWidgetId() {
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return this._persistentWidgetId;
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}
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getRoomId(widgetId) {
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return this._roomIdByWidgetId[widgetId];
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}
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setRoomId(widgetId, roomId) {
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this._roomIdByWidgetId[widgetId] = roomId;
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this.emit('update');
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}
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delRoomId(widgetId) {
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delete this._roomIdByWidgetId[widgetId];
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this.emit('update');
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}
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}
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if (global.singletonActiveWidgetStore === undefined) {
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global.singletonActiveWidgetStore = new ActiveWidgetStore();
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}
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export default global.singletonActiveWidgetStore;
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