112 lines
3.9 KiB
TypeScript
112 lines
3.9 KiB
TypeScript
/*
|
|
Copyright 2018 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 EventEmitter from 'events';
|
|
import { MatrixEvent } from "matrix-js-sdk/src";
|
|
|
|
import { MatrixClientPeg } from '../MatrixClientPeg';
|
|
import { WidgetMessagingStore } from "./widgets/WidgetMessagingStore";
|
|
|
|
export enum ActiveWidgetStoreEvent {
|
|
Update = "update",
|
|
}
|
|
|
|
/**
|
|
* Stores information about the widgets active in the app right now:
|
|
* * What widget is set to remain always-on-screen, if any
|
|
* Only one widget may be 'always on screen' at any one time.
|
|
* * Negotiated capabilities for active apps
|
|
*/
|
|
export default class ActiveWidgetStore extends EventEmitter {
|
|
private static internalInstance: ActiveWidgetStore;
|
|
private persistentWidgetId: string;
|
|
// What room ID each widget is associated with (if it's a room widget)
|
|
private roomIdByWidgetId = new Map<string, string>();
|
|
|
|
public static get instance(): ActiveWidgetStore {
|
|
if (!ActiveWidgetStore.internalInstance) {
|
|
ActiveWidgetStore.internalInstance = new ActiveWidgetStore();
|
|
}
|
|
return ActiveWidgetStore.internalInstance;
|
|
}
|
|
|
|
public start(): void {
|
|
MatrixClientPeg.get().on('RoomState.events', this.onRoomStateEvents);
|
|
}
|
|
|
|
public stop(): void {
|
|
if (MatrixClientPeg.get()) {
|
|
MatrixClientPeg.get().removeListener('RoomState.events', this.onRoomStateEvents);
|
|
}
|
|
this.roomIdByWidgetId.clear();
|
|
}
|
|
|
|
private onRoomStateEvents = (ev: MatrixEvent): void => {
|
|
// XXX: This listens for state events in order to remove the active widget.
|
|
// Everything else relies on views listening for events and calling setters
|
|
// on this class which is terrible. This store should just listen for events
|
|
// and keep itself up to date.
|
|
// TODO: Enable support for m.widget event type (https://github.com/vector-im/element-web/issues/13111)
|
|
if (ev.getType() !== 'im.vector.modular.widgets') return;
|
|
|
|
if (ev.getStateKey() === this.persistentWidgetId) {
|
|
this.destroyPersistentWidget(this.persistentWidgetId);
|
|
}
|
|
};
|
|
|
|
public destroyPersistentWidget(id: string): void {
|
|
if (id !== this.persistentWidgetId) return;
|
|
const toDeleteId = this.persistentWidgetId;
|
|
|
|
WidgetMessagingStore.instance.stopMessagingById(id);
|
|
|
|
this.setWidgetPersistence(toDeleteId, false);
|
|
this.delRoomId(toDeleteId);
|
|
}
|
|
|
|
public setWidgetPersistence(widgetId: string, val: boolean): void {
|
|
if (this.persistentWidgetId === widgetId && !val) {
|
|
this.persistentWidgetId = null;
|
|
} else if (this.persistentWidgetId !== widgetId && val) {
|
|
this.persistentWidgetId = widgetId;
|
|
}
|
|
this.emit(ActiveWidgetStoreEvent.Update);
|
|
}
|
|
|
|
public getWidgetPersistence(widgetId: string): boolean {
|
|
return this.persistentWidgetId === widgetId;
|
|
}
|
|
|
|
public getPersistentWidgetId(): string {
|
|
return this.persistentWidgetId;
|
|
}
|
|
|
|
public getRoomId(widgetId: string): string {
|
|
return this.roomIdByWidgetId.get(widgetId);
|
|
}
|
|
|
|
public setRoomId(widgetId: string, roomId: string): void {
|
|
this.roomIdByWidgetId.set(widgetId, roomId);
|
|
this.emit(ActiveWidgetStoreEvent.Update);
|
|
}
|
|
|
|
public delRoomId(widgetId: string): void {
|
|
this.roomIdByWidgetId.delete(widgetId);
|
|
this.emit(ActiveWidgetStoreEvent.Update);
|
|
}
|
|
}
|
|
|
|
window.mxActiveWidgetStore = ActiveWidgetStore.instance;
|