threema-web/src/types/broadcastchannel.d.ts

/**
 * This file is part of Threema Web.
 *
 * Threema Web is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero
 * General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Threema Web. If not, see <http://www.gnu.org/licenses/>.
 */

interface BroadcastChannel extends EventTarget {
    readonly name: string;
    onmessage: (ev: MessageEvent) => any;
    onmessageerror: (ev: MessageEvent) => any;
    close(): void;
    postMessage(message: any): void;
    addEventListener<K extends keyof BroadcastChannelEventMap>(
        type: K,
        listener: (this: BroadcastChannel, ev: BroadcastChannelEventMap[K]) => any,
        useCapture?: boolean,
    ): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
}

declare var BroadcastChannel: {
    prototype: BroadcastChannel;
    new(name: string): BroadcastChannel;
};

interface BroadcastChannelEventMap {
    message: MessageEvent;
    messageerror: MessageEvent;
}