bootstrap-window.js

/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

/// <reference path="typings/require.d.ts" />

//@ts-check
'use strict';

// Simple module style to support node.js and browser environments
(function (globalThis, factory) {

	// Node.js
	if (typeof exports === 'object') {
		module.exports = factory();
	}

	// Browser
	else {
		globalThis.MonacoBootstrapWindow = factory();
	}
}(this, function () {
	const bootstrapLib = bootstrap();
	const preloadGlobals = globals();
	const safeProcess = preloadGlobals.process;
	const useCustomProtocol = safeProcess.sandboxed || typeof safeProcess.env['ENABLE_VSCODE_BROWSER_CODE_LOADING'] === 'string';

	// Start to resolve process.env before anything gets load
	// so that we can run loading and resolving in parallel
	const whenEnvResolved = safeProcess.resolveEnv();

	/**
	 * @param {string[]} modulePaths
	 * @param {(result: unknown, configuration: import('./vs/base/parts/sandbox/common/sandboxTypes').ISandboxConfiguration) => Promise<unknown> | undefined} resultCallback
	 * @param {{
	 * 	configureDeveloperKeybindings?: (config: import('./vs/base/parts/sandbox/common/sandboxTypes').ISandboxConfiguration) => {forceEnableDeveloperKeybindings?: boolean, disallowReloadKeybinding?: boolean, removeDeveloperKeybindingsAfterLoad?: boolean},
	 * 	canModifyDOM?: (config: import('./vs/base/parts/sandbox/common/sandboxTypes').ISandboxConfiguration) => void,
	 * 	beforeLoaderConfig?: (loaderConfig: object) => void,
	 *  beforeRequire?: () => void
	 * }} [options]
	 */
	async function load(modulePaths, resultCallback, options) {

		// Error handler
		safeProcess.on('uncaughtException', function (/** @type {string | Error} */ error) {
			onUnexpectedError(error, enableDeveloperKeybindings);
		});

		// Await window configuration from preload
		performance.mark('code/willWaitForWindowConfig');
		/** @type {import('./vs/base/parts/sandbox/common/sandboxTypes').ISandboxConfiguration} */
		const configuration = await preloadGlobals.context.configuration;
		performance.mark('code/didWaitForWindowConfig');

		// Developer keybindings
		const { forceEnableDeveloperKeybindings, disallowReloadKeybinding, removeDeveloperKeybindingsAfterLoad } = typeof options?.configureDeveloperKeybindings === 'function' ? options.configureDeveloperKeybindings(configuration) : { forceEnableDeveloperKeybindings: false, disallowReloadKeybinding: false, removeDeveloperKeybindingsAfterLoad: false };
		const enableDeveloperKeybindings = safeProcess.env['VSCODE_DEV'] || forceEnableDeveloperKeybindings;
		let developerDeveloperKeybindingsDisposable;
		if (enableDeveloperKeybindings) {
			developerDeveloperKeybindingsDisposable = registerDeveloperKeybindings(disallowReloadKeybinding);
		}

		// Enable ASAR support
		globalThis.MonacoBootstrap.enableASARSupport(configuration.appRoot);

		// Signal DOM modifications are now OK
		if (typeof options?.canModifyDOM === 'function') {
			options.canModifyDOM(configuration);
		}

		// Get the nls configuration into the process.env as early as possible
		const nlsConfig = globalThis.MonacoBootstrap.setupNLS();

		let locale = nlsConfig.availableLanguages['*'] || 'en';
		if (locale === 'zh-tw') {
			locale = 'zh-Hant';
		} else if (locale === 'zh-cn') {
			locale = 'zh-Hans';
		}

		window.document.documentElement.setAttribute('lang', locale);

		// Do not advertise AMD to avoid confusing UMD modules loaded with nodejs
		if (!useCustomProtocol) {
			window['define'] = undefined;
		}

		// Replace the patched electron fs with the original node fs for all AMD code (TODO@sandbox non-sandboxed only)
		if (!safeProcess.sandboxed) {
			require.define('fs', [], function () { return require.__$__nodeRequire('original-fs'); });
		}

		window['MonacoEnvironment'] = {};

		const loaderConfig = {
			baseUrl: useCustomProtocol ?
				`${bootstrapLib.fileUriFromPath(configuration.appRoot, { isWindows: safeProcess.platform === 'win32', scheme: 'vscode-file', fallbackAuthority: 'vscode-app' })}/out` :
				`${bootstrapLib.fileUriFromPath(configuration.appRoot, { isWindows: safeProcess.platform === 'win32' })}/out`,
			'vs/nls': nlsConfig,
			preferScriptTags: useCustomProtocol
		};

		// use a trusted types policy when loading via script tags
		if (loaderConfig.preferScriptTags) {
			loaderConfig.trustedTypesPolicy = window.trustedTypes?.createPolicy('amdLoader', {
				createScriptURL(value) {
					if (value.startsWith(window.location.origin)) {
						return value;
					}
					throw new Error(`Invalid script url: ${value}`);
				}
			});
		}

		// Enable loading of node modules:
		// - sandbox: we list paths of webpacked modules to help the loader
		// - non-sandbox: we signal that any module that does not begin with
		//                `vs/` should be loaded using node.js require()
		if (safeProcess.sandboxed) {
			loaderConfig.paths = {
				'vscode-textmate': `../node_modules/vscode-textmate/release/main`,
				'vscode-oniguruma': `../node_modules/vscode-oniguruma/release/main`,
				'xterm': `../node_modules/xterm/lib/xterm.js`,
				'xterm-addon-search': `../node_modules/xterm-addon-search/lib/xterm-addon-search.js`,
				'xterm-addon-unicode11': `../node_modules/xterm-addon-unicode11/lib/xterm-addon-unicode11.js`,
				'xterm-addon-webgl': `../node_modules/xterm-addon-webgl/lib/xterm-addon-webgl.js`,
				'iconv-lite-umd': `../node_modules/iconv-lite-umd/lib/iconv-lite-umd.js`,
				'jschardet': `../node_modules/jschardet/dist/jschardet.min.js`,
			};
		} else {
			loaderConfig.amdModulesPattern = /^vs\//;
		}

		// Cached data config
		if (configuration.nodeCachedDataDir) {
			loaderConfig.nodeCachedData = {
				path: configuration.nodeCachedDataDir,
				seed: modulePaths.join('')
			};
		}

		// Signal before require.config()
		if (typeof options?.beforeLoaderConfig === 'function') {
			options.beforeLoaderConfig(loaderConfig);
		}

		// Configure loader
		require.config(loaderConfig);

		// Handle pseudo NLS
		if (nlsConfig.pseudo) {
			require(['vs/nls'], function (nlsPlugin) {
				nlsPlugin.setPseudoTranslation(nlsConfig.pseudo);
			});
		}

		// Signal before require()
		if (typeof options?.beforeRequire === 'function') {
			options.beforeRequire();
		}

		// Actually require the main module as specified
		require(modulePaths, async result => {
			try {

				// Wait for process environment being fully resolved
				performance.mark('code/willWaitForShellEnv');
				if (!safeProcess.env['VSCODE_SKIP_PROCESS_ENV_PATCHING'] /* TODO@bpasero for https://github.com/microsoft/vscode/issues/108804 */) {
					await whenEnvResolved;
				}
				performance.mark('code/didWaitForShellEnv');

				// Callback only after process environment is resolved
				const callbackResult = resultCallback(result, configuration);
				if (callbackResult instanceof Promise) {
					await callbackResult;

					if (developerDeveloperKeybindingsDisposable && removeDeveloperKeybindingsAfterLoad) {
						developerDeveloperKeybindingsDisposable();
					}
				}
			} catch (error) {
				onUnexpectedError(error, enableDeveloperKeybindings);
			}
		}, onUnexpectedError);
	}

	/**
	 * @param {boolean | undefined} disallowReloadKeybinding
	 * @returns {() => void}
	 */
	function registerDeveloperKeybindings(disallowReloadKeybinding) {
		const ipcRenderer = preloadGlobals.ipcRenderer;

		const extractKey =
			/**
			 * @param {KeyboardEvent} e
			 */
			function (e) {
				return [
					e.ctrlKey ? 'ctrl-' : '',
					e.metaKey ? 'meta-' : '',
					e.altKey ? 'alt-' : '',
					e.shiftKey ? 'shift-' : '',
					e.keyCode
				].join('');
			};

		// Devtools & reload support
		const TOGGLE_DEV_TOOLS_KB = (safeProcess.platform === 'darwin' ? 'meta-alt-73' : 'ctrl-shift-73'); // mac: Cmd-Alt-I, rest: Ctrl-Shift-I
		const TOGGLE_DEV_TOOLS_KB_ALT = '123'; // F12
		const RELOAD_KB = (safeProcess.platform === 'darwin' ? 'meta-82' : 'ctrl-82'); // mac: Cmd-R, rest: Ctrl-R

		/** @type {((e: KeyboardEvent) => void) | undefined} */
		let listener = function (e) {
			const key = extractKey(e);
			if (key === TOGGLE_DEV_TOOLS_KB || key === TOGGLE_DEV_TOOLS_KB_ALT) {
				ipcRenderer.send('vscode:toggleDevTools');
			} else if (key === RELOAD_KB && !disallowReloadKeybinding) {
				ipcRenderer.send('vscode:reloadWindow');
			}
		};

		window.addEventListener('keydown', listener);

		return function () {
			if (listener) {
				window.removeEventListener('keydown', listener);
				listener = undefined;
			}
		};
	}

	/**
	 * @param {string | Error} error
	 * @param {boolean} [enableDeveloperTools]
	 */
	function onUnexpectedError(error, enableDeveloperTools) {
		if (enableDeveloperTools) {
			const ipcRenderer = preloadGlobals.ipcRenderer;
			ipcRenderer.send('vscode:openDevTools');
		}

		console.error(`[uncaught exception]: ${error}`);

		if (error && typeof error !== 'string' && error.stack) {
			console.error(error.stack);
		}
	}

	/**
	 * @return {{ fileUriFromPath: (path: string, config: { isWindows?: boolean, scheme?: string, fallbackAuthority?: string }) => string; }}
	 */
	function bootstrap() {
		// @ts-ignore (defined in bootstrap.js)
		return window.MonacoBootstrap;
	}

	/**
	 * @return {typeof import('./vs/base/parts/sandbox/electron-sandbox/globals')}
	 */
	function globals() {
		// @ts-ignore (defined in globals.js)
		return window.vscode;
	}

	return {
		load
	};
}));