${this.pck.props.frontend.config.applicationName}

// ***************************************************************************** // Copyright (C) 2017 TypeFox and others. // // This program and the accompanying materials are made available under the // terms of the Eclipse Public License v. 2.0 which is available at // http://www.eclipse.org/legal/epl-2.0. // // This Source Code may also be made available under the following Secondary // Licenses when the conditions for such availability set forth in the Eclipse // Public License v. 2.0 are satisfied: GNU General Public License, version 2 // with the GNU Classpath Exception which is available at // https://www.gnu.org/software/classpath/license.html. // // SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 // ***************************************************************************** /* eslint-disable @typescript-eslint/indent */ import { EOL } from 'os'; import { AbstractGenerator, GeneratorOptions } from './abstract-generator'; import { existsSync, readFileSync } from 'fs'; import { BundlerGenerator } from './bundler-generator'; export class FrontendGenerator extends AbstractGenerator { async generate(options?: GeneratorOptions): Promise { await this.write(this.pck.frontend('index.html'), await this.compileIndexHtml(this.pck.targetFrontendModules)); await this.write(this.pck.frontend('index.js'), this.compileIndexJs(this.pck.targetFrontendModules, this.pck.targetFrontendPreloadModules)); await this.write(this.pck.frontend('secondary-window.html'), this.compileSecondaryWindowHtml()); await this.write(this.pck.frontend('secondary-index.js'), this.compileSecondaryIndexJs(this.pck.secondaryWindowModules)); if (this.pck.isElectron()) { await this.write(this.pck.frontend('preload.js'), this.compilePreloadJs()); } } protected compileIndexPreload(frontendModules: Map): string { const template = this.pck.props.generator.config.preloadTemplate; if (!template) { return ''; } // Support path to html file if (existsSync(template)) { return readFileSync(template).toString(); } return template; } protected async compileIndexHtml(frontendModules: Map): Promise { return ` ${await this.compileIndexHead(frontendModules)}

${this.compileIndexPreload(frontendModules)}

`; } protected async compileIndexHead(frontendModules: Map): Promise { const preferEsbuild = await new BundlerGenerator(this.pck, this.options).preferESBuild(); return ` ${preferEsbuild ? '' : ''} ${this.pck.props.frontend.config.applicationName}`; } protected compileIndexJs(frontendModules: Map, frontendPreloadModules: Map): string { return `\ // @ts-check require('reflect-metadata'); ${this.emitStartupLogger('Frontend', 'frontend page start')} ${this.emitStartupLog('loading modules...')} const { Container } = require('@theia/core/shared/inversify'); const { FrontendApplicationConfigProvider } = require('@theia/core/lib/browser/frontend-application-config-provider'); FrontendApplicationConfigProvider.set(${this.prettyStringify(this.pck.props.frontend.config)}); ${this.ifMonaco(() => ` self.MonacoEnvironment = { getWorkerUrl: function (moduleId, label) { return './editor.worker.js'; } }`)} function load(container, jsModule) { return Promise.resolve(jsModule) .then(containerModule => container.load(containerModule.default)); } async function preload(container) { try { ${Array.from(frontendPreloadModules.values(), jsModulePath => `\ await load(container, ${this.importOrRequire()}('${jsModulePath}'));`).join(EOL)} const { Preloader } = require('@theia/core/lib/browser/preload/preloader'); const preloader = container.get(Preloader); await preloader.initialize(); } catch (reason) { console.error('Failed to run preload scripts.'); if (reason) { console.error(reason); } } } module.exports = (async () => { const { messagingFrontendModule } = require('@theia/core/lib/${this.pck.isBrowser() || this.pck.isBrowserOnly() ? 'browser/messaging/messaging-frontend-module' : 'electron-browser/messaging/electron-messaging-frontend-module'}'); const container = new Container(); container.load(messagingFrontendModule); ${this.ifBrowserOnly(`const { messagingFrontendOnlyModule } = require('@theia/core/lib/browser-only/messaging/messaging-frontend-only-module'); container.load(messagingFrontendOnlyModule);`)} ${this.emitStartupLog('container created')} await preload(container); ${this.emitStartupLog('preloaded')} ${this.ifMonaco(() => ` const { MonacoInit } = require('@theia/monaco/lib/browser/monaco-init'); `)}; const { FrontendApplication } = require('@theia/core/lib/browser'); const { frontendApplicationModule } = require('@theia/core/lib/browser/frontend-application-module'); const { loggerFrontendModule } = require('@theia/core/lib/browser/logger-frontend-module'); container.load(frontendApplicationModule); ${this.pck.ifBrowserOnly(`const { frontendOnlyApplicationModule } = require('@theia/core/lib/browser-only/frontend-only-application-module'); container.load(frontendOnlyApplicationModule);`)} container.load(loggerFrontendModule); ${this.ifBrowserOnly(`const { loggerFrontendOnlyModule } = require('@theia/core/lib/browser-only/logger-frontend-only-module'); container.load(loggerFrontendOnlyModule);`)} ${this.emitStartupLog('core modules loaded')} try { ${Array.from(frontendModules.values(), jsModulePath => `\ await load(container, ${this.importOrRequire()}('${jsModulePath}'));`).join(EOL)} ${this.ifMonaco(() => ` MonacoInit.init(container); `)}; ${this.emitStartupLog('modules loaded')} await start(); } catch (reason) { console.error('Failed to start the frontend application.'); if (reason) { console.error(reason); } } function start() { (window['theia'] = window['theia'] || {}).container = container; ${this.emitStartupLog('resolving application')} const application = container.get(FrontendApplication); ${this.emitStartupLog('application resolved')} return application.start(); } })(); `; } protected importOrRequire(): string { return this.options.mode !== 'production' ? 'import' : 'require'; } /** HTML for secondary windows that contain an extracted widget. */ protected compileSecondaryWindowHtml(): string { return ` Theia — Secondary Window `; } protected compileSecondaryIndexJs(secondaryWindowModules: Map): string { return `\ // @ts-check require('reflect-metadata'); const { Container } = require('@theia/core/shared/inversify'); module.exports = Promise.resolve().then(() => { const { frontendApplicationModule } = require('@theia/core/lib/browser/frontend-application-module'); const container = new Container(); container.load(frontendApplicationModule); ${Array.from(secondaryWindowModules.values(), jsModulePath => `\ container.load(require('${jsModulePath}').default);`).join(EOL)} }); `; } compilePreloadJs(): string { return `\ // @ts-check ${Array.from(this.pck.preloadModules.values(), path => `require('${path}').preload();`).join(EOL)} `; } }