Michael Telatynski
c0e40217f3
* Apply `strictNullChecks` to src/stores/widgets/* * Iterate * Iterate
95 lines
3.3 KiB
TypeScript
95 lines
3.3 KiB
TypeScript
/*
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* Copyright 2020 The Matrix.org Foundation C.I.C.
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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 { ClientWidgetApi, Widget } from "matrix-widget-api";
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import { AsyncStoreWithClient } from "../AsyncStoreWithClient";
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import defaultDispatcher from "../../dispatcher/dispatcher";
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import { ActionPayload } from "../../dispatcher/payloads";
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import { EnhancedMap } from "../../utils/maps";
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import WidgetUtils from "../../utils/WidgetUtils";
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export enum WidgetMessagingStoreEvent {
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StoreMessaging = "store_messaging",
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StopMessaging = "stop_messaging",
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}
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/**
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* Temporary holding store for widget messaging instances. This is eventually
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* going to be merged with a more complete WidgetStore, but for now it's
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* easiest to split this into a single place.
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*/
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export class WidgetMessagingStore extends AsyncStoreWithClient<{}> {
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private static readonly internalInstance = (() => {
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const instance = new WidgetMessagingStore();
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instance.start();
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return instance;
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})();
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private widgetMap = new EnhancedMap<string, ClientWidgetApi>(); // <widget UID, ClientWidgetAPi>
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public constructor() {
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super(defaultDispatcher);
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}
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public static get instance(): WidgetMessagingStore {
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return WidgetMessagingStore.internalInstance;
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}
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protected async onAction(payload: ActionPayload): Promise<void> {
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// nothing to do
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}
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protected async onReady(): Promise<any> {
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// just in case
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this.widgetMap.clear();
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}
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public storeMessaging(widget: Widget, roomId: string | undefined, widgetApi: ClientWidgetApi): void {
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this.stopMessaging(widget, roomId);
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const uid = WidgetUtils.calcWidgetUid(widget.id, roomId);
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this.widgetMap.set(uid, widgetApi);
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this.emit(WidgetMessagingStoreEvent.StoreMessaging, uid, widgetApi);
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}
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public stopMessaging(widget: Widget, roomId: string | undefined): void {
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this.stopMessagingByUid(WidgetUtils.calcWidgetUid(widget.id, roomId));
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}
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public getMessaging(widget: Widget, roomId: string | undefined): ClientWidgetApi | undefined {
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return this.widgetMap.get(WidgetUtils.calcWidgetUid(widget.id, roomId));
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}
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/**
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* Stops the widget messaging instance for a given widget UID.
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* @param {string} widgetUid The widget UID.
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*/
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public stopMessagingByUid(widgetUid: string): void {
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this.widgetMap.remove(widgetUid)?.stop();
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this.emit(WidgetMessagingStoreEvent.StopMessaging, widgetUid);
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}
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/**
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* Gets the widget messaging class for a given widget UID.
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* @param {string} widgetUid The widget UID.
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* @returns {ClientWidgetApi} The widget API, or a falsy value if not found.
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*/
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public getMessagingForUid(widgetUid: string): ClientWidgetApi | undefined {
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return this.widgetMap.get(widgetUid);
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}
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}
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