73 lines
2.1 KiB
TypeScript
73 lines
2.1 KiB
TypeScript
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/**
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* Copyright (c) Microsoft Corporation.
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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 * as electron from 'electron';
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// Electron loader is passed to Electron as --require electronLoader.js and
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// defers the app ready event until remote debugging is established.
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(async () => {
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const app = electron.app;
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const originalEmitMethod = app.emit.bind(app);
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const originalIsReadyMethod = app.isReady.bind(app);
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const originalWhenReadyMethod = app.whenReady.bind(app);
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const deferredEmits: { event: string | symbol, args: any[] }[] = [];
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let attached = false;
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let isReady = false;
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let readyCallback: () => void;
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const readyPromise = new Promise(f => readyCallback = f);
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app.isReady = () => {
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if (attached)
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return originalIsReadyMethod();
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return isReady;
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};
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app.whenReady = async () => {
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if (attached)
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return originalWhenReadyMethod();
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await readyPromise;
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};
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app.emit = (event: string | symbol, ...args: any[]): boolean => {
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if (attached)
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return originalEmitMethod(event, ...args);
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deferredEmits.push({ event, args });
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return true;
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};
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const playwrightRun = () => {
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while (deferredEmits.length) {
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const emit = deferredEmits.shift();
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if (emit!.event === 'ready') {
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isReady = true;
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readyCallback();
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}
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originalEmitMethod(emit!.event, ...emit!.args);
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}
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attached = true;
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return electron;
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};
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// Resolving the race between the debugger and the boot-time script.
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if ((global as any)._playwrightRunCallback) {
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(global as any)._playwrightRunCallback(playwrightRun());
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return;
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}
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(global as any)._playwrightRun = playwrightRun;
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})();
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