/** * @license * Copyright Google Inc. All Rights Reserved. * * Use of this source code is governed by an MIT-style license that can be * found in the LICENSE file at https://angular.io/license */ import {XHR, analyzeAppProvidersForDeprecatedConfiguration, platformCoreDynamic} from '@angular/compiler'; import {ApplicationRef, Compiler, CompilerFactory, CompilerOptions, ComponentRef, ComponentResolver, ExceptionHandler, NgModule, NgModuleRef, OpaqueToken, PLATFORM_DIRECTIVES, PLATFORM_INITIALIZER, PLATFORM_PIPES, PlatformRef, ReflectiveInjector, SchemaMetadata, Type, assertPlatform, createPlatform, createPlatformFactory, getPlatform, isDevMode} from '@angular/core'; import {BROWSER_PLATFORM_PROVIDERS, BrowserModule, WORKER_APP_PLATFORM_PROVIDERS, WORKER_SCRIPT, WorkerAppModule, platformBrowser, platformWorkerApp, platformWorkerUi} from '@angular/platform-browser'; import {Console} from './core_private'; import {PromiseWrapper} from './src/facade/async'; import {ConcreteType, isPresent, stringify} from './src/facade/lang'; import {INTERNAL_BROWSER_DYNAMIC_PLATFORM_PROVIDERS} from './src/platform_providers'; import {CachedXHR} from './src/xhr/xhr_cache'; import {XHRImpl} from './src/xhr/xhr_impl'; /** * @deprecated The compiler providers are already included in the {@link CompilerFactory} that is * contained the {@link browserDynamicPlatform}()`. */ export const BROWSER_APP_COMPILER_PROVIDERS: Array = []; /** * @experimental */ export const CACHED_TEMPLATE_PROVIDER: Array = [{provide: XHR, useClass: CachedXHR}]; /** * @experimental API related to bootstrapping are still under review. */ export const platformBrowserDynamic = createPlatformFactory( platformCoreDynamic, 'browserDynamic', INTERNAL_BROWSER_DYNAMIC_PLATFORM_PROVIDERS); /** * @deprecated Use {@link platformBrowserDynamic} instead */ export const browserDynamicPlatform = platformBrowserDynamic; /** * Bootstrapping for Angular applications. * * You instantiate an Angular application by explicitly specifying a component to use * as the root component for your application via the `bootstrap()` method. * * ## Simple Example * * Assuming this `index.html`: * * ```html * * * * loading... * * * ``` * * An application is bootstrapped inside an existing browser DOM, typically `index.html`. * Unlike Angular 1, Angular 2 does not compile/process providers in `index.html`. This is * mainly for security reasons, as well as architectural changes in Angular 2. This means * that `index.html` can safely be processed using server-side technologies such as * providers. Bindings can thus use double-curly `{{ syntax }}` without collision from * Angular 2 component double-curly `{{ syntax }}`. * * We can use this script code: * * {@example core/ts/bootstrap/bootstrap.ts region='bootstrap'} * * When the app developer invokes `bootstrap()` with the root component `MyApp` as its * argument, Angular performs the following tasks: * * 1. It uses the component's `selector` property to locate the DOM element which needs * to be upgraded into the angular component. * 2. It creates a new child injector (from the platform injector). Optionally, you can * also override the injector configuration for an app by invoking `bootstrap` with the * `componentInjectableBindings` argument. * 3. It creates a new `Zone` and connects it to the angular application's change detection * domain instance. * 4. It creates an emulated or shadow DOM on the selected component's host element and loads the * template into it. * 5. It instantiates the specified component. * 6. Finally, Angular performs change detection to apply the initial data providers for the * application. * * * ## Bootstrapping Multiple Applications * * When working within a browser window, there are many singleton resources: cookies, title, * location, and others. Angular services that represent these resources must likewise be * shared across all Angular applications that occupy the same browser window. For this * reason, Angular creates exactly one global platform object which stores all shared * services, and each angular application injector has the platform injector as its parent. * * Each application has its own private injector as well. When there are multiple * applications on a page, Angular treats each application injector's services as private * to that application. * * ## API (version 1) * * - `appComponentType`: The root component which should act as the application. This is * a reference to a `Type` which is annotated with `@Component(...)`. * - `customProviders`: An additional set of providers that can be added to the * app injector to override default injection behavior. * * ## API (version 2) * - `appComponentType`: The root component which should act as the application. This is * a reference to a `Type` which is annotated with `@Component(...)`. * - `providers`, `declarations`, `imports`, `entryComponents`: Defines the properties * of the dynamically created module that is used to bootstrap the module. * - to configure the compiler, use the `compilerOptions` parameter. * * Returns a `Promise` of {@link ComponentRef}. * * @experimental This api cannot be used with the offline compiler and thus is still subject to * change. */ // Note: We are using typescript overloads here to have 2 function signatures! export function bootstrap( appComponentType: ConcreteType, customProviders?: Array): Promise>; export function bootstrap( appComponentType: ConcreteType, {providers, imports, declarations, entryComponents, schemas, compilerOptions}?: { providers?: Array, declarations?: any[], imports?: any[], entryComponents?: any[], schemas?: Array, compilerOptions?: CompilerOptions }): Promise>; export function bootstrap( appComponentType: ConcreteType, customProvidersOrDynamicModule?: Array| { providers: Array, declarations?: any[], imports: any[], entryComponents: any[], schemas?: Array, compilerOptions: CompilerOptions }): Promise> { let compilerOptions: CompilerOptions; let providers: any[] = []; let declarations: any[] = []; let imports: any[] = []; let entryComponents: any[] = []; let deprecationMessages: string[] = []; let schemas: any[] = []; if (customProvidersOrDynamicModule instanceof Array) { providers = customProvidersOrDynamicModule; const deprecatedConfiguration = analyzeAppProvidersForDeprecatedConfiguration(providers); declarations = deprecatedConfiguration.moduleDeclarations.concat(declarations); compilerOptions = deprecatedConfiguration.compilerOptions; deprecationMessages = deprecatedConfiguration.deprecationMessages; } else if (customProvidersOrDynamicModule) { providers = normalizeArray(customProvidersOrDynamicModule.providers); declarations = normalizeArray(customProvidersOrDynamicModule.declarations); imports = normalizeArray(customProvidersOrDynamicModule.imports); entryComponents = normalizeArray(customProvidersOrDynamicModule.entryComponents); schemas = normalizeArray(customProvidersOrDynamicModule.schemas); compilerOptions = customProvidersOrDynamicModule.compilerOptions; } @NgModule({ providers: providers, declarations: declarations.concat([appComponentType]), imports: [BrowserModule, imports], entryComponents: entryComponents.concat([appComponentType]), schemas: schemas }) class DynamicModule { } return platformBrowserDynamic() .bootstrapModule(DynamicModule, compilerOptions) .then((moduleRef) => { const console = moduleRef.injector.get(Console); deprecationMessages.forEach((msg) => console.warn(msg)); const appRef: ApplicationRef = moduleRef.injector.get(ApplicationRef); return appRef.bootstrap(appComponentType); }); } /** * Bootstraps the worker ui. * * @experimental */ export function bootstrapWorkerUi( workerScriptUri: string, customProviders: Array = []): Promise { // For now, just creates the worker ui platform... return Promise.resolve(platformWorkerUi([{ provide: WORKER_SCRIPT, useValue: workerScriptUri, }].concat(customProviders))); } /** * @experimental API related to bootstrapping are still under review. */ export const platformWorkerAppDynamic = createPlatformFactory(platformCoreDynamic, 'workerAppDynamic', [{ provide: CompilerOptions, useValue: {providers: [{provide: XHR, useClass: XHRImpl}]}, multi: true }]); /** * @deprecated Use {@link platformWorkerAppDynamic} instead */ export const workerAppDynamicPlatform = platformWorkerAppDynamic; /** * @deprecated Create an {@link NgModule} that includes the {@link WorkerAppModule} and use {@link * bootstrapModule} * with the {@link workerAppDynamicPlatform}() instead. */ export function bootstrapWorkerApp( appComponentType: ConcreteType, customProviders?: Array): Promise> { console.warn( 'bootstrapWorkerApp is deprecated. Create an @NgModule that includes the `WorkerAppModule` and use `bootstrapModule` with the `workerAppDynamicPlatform()` instead.'); const deprecatedConfiguration = analyzeAppProvidersForDeprecatedConfiguration(customProviders); const declarations = [deprecatedConfiguration.moduleDeclarations.concat([appComponentType])]; @NgModule({ providers: customProviders, declarations: declarations, imports: [WorkerAppModule], entryComponents: [appComponentType] }) class DynamicModule { } return platformWorkerAppDynamic() .bootstrapModule(DynamicModule, deprecatedConfiguration.compilerOptions) .then((moduleRef) => { const console = moduleRef.injector.get(Console); deprecatedConfiguration.deprecationMessages.forEach((msg) => console.warn(msg)); const appRef: ApplicationRef = moduleRef.injector.get(ApplicationRef); return appRef.bootstrap(appComponentType); }); } function normalizeArray(arr: any[]): any[] { return arr ? arr : []; }