2022-06-10 23:38:46 +02:00
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/*
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Copyright 2022 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 { defer, IDeferred } from 'matrix-js-sdk/src/utils';
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import { logger } from "matrix-js-sdk/src/logger";
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import { ElectronChannel } from "../../@types/global";
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const electron = window.electron;
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interface IPCPayload {
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id?: number;
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error?: string;
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reply?: any;
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}
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export class IPCManager {
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private pendingIpcCalls: { [ipcCallId: number]: IDeferred<any> } = {};
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private nextIpcCallId = 0;
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public constructor(
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private readonly sendChannel: ElectronChannel = "ipcCall",
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private readonly recvChannel: ElectronChannel = "ipcReply",
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) {
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electron.on(this.recvChannel, this.onIpcReply);
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}
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public async call(name: string, ...args: any[]): Promise<any> {
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// TODO this should be moved into the preload.js file.
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const ipcCallId = ++this.nextIpcCallId;
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const deferred = defer<any>();
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this.pendingIpcCalls[ipcCallId] = deferred;
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// Maybe add a timeout to these? Probably not necessary.
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window.electron.send(this.sendChannel, { id: ipcCallId, name, args });
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return deferred.promise;
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}
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2022-07-11 14:22:37 +02:00
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private onIpcReply = (_ev: {}, payload: IPCPayload): void => {
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2022-06-10 23:38:46 +02:00
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if (payload.id === undefined) {
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logger.warn("Ignoring IPC reply with no ID");
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return;
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}
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if (this.pendingIpcCalls[payload.id] === undefined) {
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logger.warn("Unknown IPC payload ID: " + payload.id);
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return;
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}
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const callbacks = this.pendingIpcCalls[payload.id];
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delete this.pendingIpcCalls[payload.id];
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if (payload.error) {
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callbacks.reject(payload.error);
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} else {
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callbacks.resolve(payload.reply);
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}
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};
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}
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