85 lines
2.6 KiB
JavaScript
85 lines
2.6 KiB
JavaScript
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/*
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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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/**
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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 {
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constructor() {
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this._persistentWidgetId = null;
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// A list of negotiated capabilities for each widget, by ID
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// {
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// widgetId: [caps...],
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// }
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this._capsByWidgetId = {};
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// A WidgetMessaging instance for each widget ID
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this._widgetMessagingByWidgetId = {};
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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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}
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getWidgetPersistence(widgetId) {
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return this._persistentWidgetId === widgetId;
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}
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setWidgetCapabilities(widgetId, caps) {
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this._capsByWidgetId[widgetId] = caps;
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}
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widgetHasCapability(widgetId, cap) {
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return this._capsByWidgetId[widgetId] && this._capsByWidgetId[widgetId].includes(cap);
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}
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delWidgetCapabilities(widgetId) {
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delete this._capsByWidgetId[widgetId];
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}
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setWidgetMessaging(widgetId, wm) {
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this._widgetMessagingByWidgetId[widgetId] = wm;
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}
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getWidgetMessaging(widgetId) {
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return this._widgetMessagingByWidgetId[widgetId];
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}
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delWidgetMessaging(widgetId) {
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if (this._widgetMessagingByWidgetId[widgetId]) {
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try {
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this._widgetMessagingByWidgetId[widgetId].stop();
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} catch (e) {
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console.error('Failed to stop listening for widgetMessaging events', e.message);
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}
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delete this._widgetMessagingByWidgetId[widgetId];
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}
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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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