91 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			91 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
/**
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 * @license
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 * Copyright Google Inc. All Rights Reserved.
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 *
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 * Use of this source code is governed by an MIT-style license that can be
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 * found in the LICENSE file at https://angular.io/license
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 */
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import {APP_BOOTSTRAP_LISTENER, ApplicationRef, ComponentRef, InjectionToken} from '@angular/core';
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import {ExtraOptions, ROUTER_CONFIGURATION, ROUTER_INITIALIZER, Router, RouterPreloader} from '@angular/router';
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import {UpgradeModule} from '@angular/upgrade/static';
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/**
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 * @whatItDoes Creates an initializer that in addition to setting up the Angular
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 * router sets up the ngRoute integration.
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 *
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 * @howToUse
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 *
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 * ```
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 * @NgModule({
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 *  imports: [
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 *   RouterModule.forRoot(SOME_ROUTES),
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 *   UpgradeModule
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 * ],
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 * providers: [
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 *   RouterUpgradeInitializer
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 * ]
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 * })
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 * export class AppModule {
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 *   ngDoBootstrap() {}
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 * }
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 * ```
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 *
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 * @experimental
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 */
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export const RouterUpgradeInitializer = {
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  provide: ROUTER_INITIALIZER,
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  useFactory: initialRouterNavigation,
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  deps: [UpgradeModule, ApplicationRef, RouterPreloader, ROUTER_CONFIGURATION]
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};
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/**
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 * @internal
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 */
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export function initialRouterNavigation(
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    ngUpgrade: UpgradeModule, ref: ApplicationRef, preloader: RouterPreloader,
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    opts: ExtraOptions): Function {
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  return () => {
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    if (!ngUpgrade.$injector) {
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      throw new Error(`
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        RouterUpgradeInitializer can be used only after UpgradeModule.bootstrap has been called.
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        Remove RouterUpgradeInitializer and call setUpLocationSync after UpgradeModule.bootstrap.
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      `);
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    }
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    const router = ngUpgrade.injector.get(Router);
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    const ref = ngUpgrade.injector.get(ApplicationRef);
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    (router as any).resetRootComponentType(ref.componentTypes[0]);
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    preloader.setUpPreloading();
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    if (opts.initialNavigation === false) {
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      router.setUpLocationChangeListener();
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    } else {
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      router.initialNavigation();
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    }
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    setUpLocationSync(ngUpgrade);
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  };
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}
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/**
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 * @whatItDoes Sets up a location synchronization.
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 *
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 * History.pushState does not fire onPopState, so the angular2 location
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 * doesn't detect it. The workaround is to attach a location change listener
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 *
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 * @experimental
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 */
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export function setUpLocationSync(ngUpgrade: UpgradeModule): void {
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  const router: Router = ngUpgrade.injector.get(Router);
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  const url = document.createElement('a');
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  ngUpgrade.$injector.get('$rootScope')
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      .$on('$locationChangeStart', (_: any, next: string, __: string) => {
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        url.href = next;
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        router.navigateByUrl(url.pathname);
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      });
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}
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