/** * @license * Copyright Google LLC 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 { HashLocationStrategy, LOCATION_INITIALIZED, LocationStrategy, ViewportScroller } from '@angular/common'; import { APP_BOOTSTRAP_LISTENER, APP_INITIALIZER, ApplicationRef, ENVIRONMENT_INITIALIZER, EnvironmentInjector, inject, InjectFlags, InjectionToken, Injector, makeEnvironmentProviders, NgZone } from '@angular/core'; import { of, Subject } from 'rxjs'; import { INPUT_BINDER, RoutedComponentInputBinder } from './directives/router_outlet'; import { NavigationError, stringifyEvent } from './events'; import { NavigationTransitions } from './navigation_transition'; import { Router } from './router'; import { ROUTER_CONFIGURATION } from './router_config'; import { ROUTES } from './router_config_loader'; import { PreloadingStrategy, RouterPreloader } from './router_preloader'; import { ROUTER_SCROLLER, RouterScroller } from './router_scroller'; import { ActivatedRoute } from './router_state'; import { UrlSerializer } from './url_tree'; import { afterNextNavigation } from './utils/navigations'; /** * Sets up providers necessary to enable `Router` functionality for the application. * Allows to configure a set of routes as well as extra features that should be enabled. * * @usageNotes * * Basic example of how you can add a Router to your application: * ``` * const appRoutes: Routes = []; * bootstrapApplication(AppComponent, { * providers: [provideRouter(appRoutes)] * }); * ``` * * You can also enable optional features in the Router by adding functions from the `RouterFeatures` * type: * ``` * const appRoutes: Routes = []; * bootstrapApplication(AppComponent, * { * providers: [ * provideRouter(appRoutes, * withDebugTracing(), * withRouterConfig({paramsInheritanceStrategy: 'always'})) * ] * } * ); * ``` * * @see {@link RouterFeatures} * * @publicApi * @param routes A set of `Route`s to use for the application routing table. * @param features Optional features to configure additional router behaviors. * @returns A set of providers to setup a Router. */ export function provideRouter(routes, ...features) { return makeEnvironmentProviders([ { provide: ROUTES, multi: true, useValue: routes }, (typeof ngDevMode === 'undefined' || ngDevMode) ? { provide: ROUTER_IS_PROVIDED, useValue: true } : [], { provide: ActivatedRoute, useFactory: rootRoute, deps: [Router] }, { provide: APP_BOOTSTRAP_LISTENER, multi: true, useFactory: getBootstrapListener }, features.map(feature => feature.ɵproviders), ]); } export function rootRoute(router) { return router.routerState.root; } /** * Helper function to create an object that represents a Router feature. */ function routerFeature(kind, providers) { return { ɵkind: kind, ɵproviders: providers }; } /** * An Injection token used to indicate whether `provideRouter` or `RouterModule.forRoot` was ever * called. */ export const ROUTER_IS_PROVIDED = new InjectionToken('', { providedIn: 'root', factory: () => false }); const routerIsProvidedDevModeCheck = { provide: ENVIRONMENT_INITIALIZER, multi: true, useFactory() { return () => { if (!inject(ROUTER_IS_PROVIDED)) { console.warn('`provideRoutes` was called without `provideRouter` or `RouterModule.forRoot`. ' + 'This is likely a mistake.'); } }; } }; /** * Registers a [DI provider](guide/glossary#provider) for a set of routes. * @param routes The route configuration to provide. * * @usageNotes * * ``` * @NgModule({ * providers: [provideRoutes(ROUTES)] * }) * class LazyLoadedChildModule {} * ``` * * @deprecated If necessary, provide routes using the `ROUTES` `InjectionToken`. * @see {@link ROUTES} * @publicApi */ export function provideRoutes(routes) { return [ { provide: ROUTES, multi: true, useValue: routes }, (typeof ngDevMode === 'undefined' || ngDevMode) ? routerIsProvidedDevModeCheck : [], ]; } /** * Enables customizable scrolling behavior for router navigations. * * @usageNotes * * Basic example of how you can enable scrolling feature: * ``` * const appRoutes: Routes = []; * bootstrapApplication(AppComponent, * { * providers: [ * provideRouter(appRoutes, withInMemoryScrolling()) * ] * } * ); * ``` * * @see {@link provideRouter} * @see {@link ViewportScroller} * * @publicApi * @param options Set of configuration parameters to customize scrolling behavior, see * `InMemoryScrollingOptions` for additional information. * @returns A set of providers for use with `provideRouter`. */ export function withInMemoryScrolling(options = {}) { const providers = [{ provide: ROUTER_SCROLLER, useFactory: () => { const viewportScroller = inject(ViewportScroller); const zone = inject(NgZone); const transitions = inject(NavigationTransitions); const urlSerializer = inject(UrlSerializer); return new RouterScroller(urlSerializer, transitions, viewportScroller, zone, options); }, }]; return routerFeature(4 /* RouterFeatureKind.InMemoryScrollingFeature */, providers); } export function getBootstrapListener() { const injector = inject(Injector); return (bootstrappedComponentRef) => { const ref = injector.get(ApplicationRef); if (bootstrappedComponentRef !== ref.components[0]) { return; } const router = injector.get(Router); const bootstrapDone = injector.get(BOOTSTRAP_DONE); if (injector.get(INITIAL_NAVIGATION) === 1 /* InitialNavigation.EnabledNonBlocking */) { router.initialNavigation(); } injector.get(ROUTER_PRELOADER, null, InjectFlags.Optional)?.setUpPreloading(); injector.get(ROUTER_SCROLLER, null, InjectFlags.Optional)?.init(); router.resetRootComponentType(ref.componentTypes[0]); if (!bootstrapDone.closed) { bootstrapDone.next(); bootstrapDone.complete(); bootstrapDone.unsubscribe(); } }; } /** * A subject used to indicate that the bootstrapping phase is done. When initial navigation is * `enabledBlocking`, the first navigation waits until bootstrapping is finished before continuing * to the activation phase. */ const BOOTSTRAP_DONE = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'bootstrap done indicator' : '', { factory: () => { return new Subject(); } }); const INITIAL_NAVIGATION = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'initial navigation' : '', { providedIn: 'root', factory: () => 1 /* InitialNavigation.EnabledNonBlocking */ }); /** * Configures initial navigation to start before the root component is created. * * The bootstrap is blocked until the initial navigation is complete. This value is required for * [server-side rendering](guide/universal) to work. * * @usageNotes * * Basic example of how you can enable this navigation behavior: * ``` * const appRoutes: Routes = []; * bootstrapApplication(AppComponent, * { * providers: [ * provideRouter(appRoutes, withEnabledBlockingInitialNavigation()) * ] * } * ); * ``` * * @see {@link provideRouter} * * @publicApi * @returns A set of providers for use with `provideRouter`. */ export function withEnabledBlockingInitialNavigation() { const providers = [ { provide: INITIAL_NAVIGATION, useValue: 0 /* InitialNavigation.EnabledBlocking */ }, { provide: APP_INITIALIZER, multi: true, deps: [Injector], useFactory: (injector) => { const locationInitialized = injector.get(LOCATION_INITIALIZED, Promise.resolve()); return () => { return locationInitialized.then(() => { return new Promise(resolve => { const router = injector.get(Router); const bootstrapDone = injector.get(BOOTSTRAP_DONE); afterNextNavigation(router, () => { // Unblock APP_INITIALIZER in case the initial navigation was canceled or errored // without a redirect. resolve(true); }); injector.get(NavigationTransitions).afterPreactivation = () => { // Unblock APP_INITIALIZER once we get to `afterPreactivation`. At this point, we // assume activation will complete successfully (even though this is not // guaranteed). resolve(true); return bootstrapDone.closed ? of(void 0) : bootstrapDone; }; router.initialNavigation(); }); }); }; } }, ]; return routerFeature(2 /* RouterFeatureKind.EnabledBlockingInitialNavigationFeature */, providers); } /** * Disables initial navigation. * * Use if there is a reason to have more control over when the router starts its initial navigation * due to some complex initialization logic. * * @usageNotes * * Basic example of how you can disable initial navigation: * ``` * const appRoutes: Routes = []; * bootstrapApplication(AppComponent, * { * providers: [ * provideRouter(appRoutes, withDisabledInitialNavigation()) * ] * } * ); * ``` * * @see {@link provideRouter} * * @returns A set of providers for use with `provideRouter`. * * @publicApi */ export function withDisabledInitialNavigation() { const providers = [ { provide: APP_INITIALIZER, multi: true, useFactory: () => { const router = inject(Router); return () => { router.setUpLocationChangeListener(); }; } }, { provide: INITIAL_NAVIGATION, useValue: 2 /* InitialNavigation.Disabled */ } ]; return routerFeature(3 /* RouterFeatureKind.DisabledInitialNavigationFeature */, providers); } /** * Enables logging of all internal navigation events to the console. * Extra logging might be useful for debugging purposes to inspect Router event sequence. * * @usageNotes * * Basic example of how you can enable debug tracing: * ``` * const appRoutes: Routes = []; * bootstrapApplication(AppComponent, * { * providers: [ * provideRouter(appRoutes, withDebugTracing()) * ] * } * ); * ``` * * @see {@link provideRouter} * * @returns A set of providers for use with `provideRouter`. * * @publicApi */ export function withDebugTracing() { let providers = []; if (typeof ngDevMode === 'undefined' || ngDevMode) { providers = [{ provide: ENVIRONMENT_INITIALIZER, multi: true, useFactory: () => { const router = inject(Router); return () => router.events.subscribe((e) => { // tslint:disable:no-console console.group?.(`Router Event: ${e.constructor.name}`); console.log(stringifyEvent(e)); console.log(e); console.groupEnd?.(); // tslint:enable:no-console }); } }]; } else { providers = []; } return routerFeature(1 /* RouterFeatureKind.DebugTracingFeature */, providers); } const ROUTER_PRELOADER = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'router preloader' : ''); /** * Allows to configure a preloading strategy to use. The strategy is configured by providing a * reference to a class that implements a `PreloadingStrategy`. * * @usageNotes * * Basic example of how you can configure preloading: * ``` * const appRoutes: Routes = []; * bootstrapApplication(AppComponent, * { * providers: [ * provideRouter(appRoutes, withPreloading(PreloadAllModules)) * ] * } * ); * ``` * * @see {@link provideRouter} * * @param preloadingStrategy A reference to a class that implements a `PreloadingStrategy` that * should be used. * @returns A set of providers for use with `provideRouter`. * * @publicApi */ export function withPreloading(preloadingStrategy) { const providers = [ { provide: ROUTER_PRELOADER, useExisting: RouterPreloader }, { provide: PreloadingStrategy, useExisting: preloadingStrategy }, ]; return routerFeature(0 /* RouterFeatureKind.PreloadingFeature */, providers); } /** * Allows to provide extra parameters to configure Router. * * @usageNotes * * Basic example of how you can provide extra configuration options: * ``` * const appRoutes: Routes = []; * bootstrapApplication(AppComponent, * { * providers: [ * provideRouter(appRoutes, withRouterConfig({ * onSameUrlNavigation: 'reload' * })) * ] * } * ); * ``` * * @see {@link provideRouter} * * @param options A set of parameters to configure Router, see `RouterConfigOptions` for * additional information. * @returns A set of providers for use with `provideRouter`. * * @publicApi */ export function withRouterConfig(options) { const providers = [ { provide: ROUTER_CONFIGURATION, useValue: options }, ]; return routerFeature(5 /* RouterFeatureKind.RouterConfigurationFeature */, providers); } /** * Provides the location strategy that uses the URL fragment instead of the history API. * * @usageNotes * * Basic example of how you can use the hash location option: * ``` * const appRoutes: Routes = []; * bootstrapApplication(AppComponent, * { * providers: [ * provideRouter(appRoutes, withHashLocation()) * ] * } * ); * ``` * * @see {@link provideRouter} * @see {@link HashLocationStrategy} * * @returns A set of providers for use with `provideRouter`. * * @publicApi */ export function withHashLocation() { const providers = [ { provide: LocationStrategy, useClass: HashLocationStrategy }, ]; return routerFeature(5 /* RouterFeatureKind.RouterConfigurationFeature */, providers); } /** * Subscribes to the Router's navigation events and calls the given function when a * `NavigationError` happens. * * This function is run inside application's [injection context](guide/dependency-injection-context) * so you can use the [`inject`](api/core/inject) function. * * @usageNotes * * Basic example of how you can use the error handler option: * ``` * const appRoutes: Routes = []; * bootstrapApplication(AppComponent, * { * providers: [ * provideRouter(appRoutes, withNavigationErrorHandler((e: NavigationError) => * inject(MyErrorTracker).trackError(e))) * ] * } * ); * ``` * * @see {@link NavigationError} * @see {@link core/inject} * @see {@link runInInjectionContext} * * @returns A set of providers for use with `provideRouter`. * * @publicApi */ export function withNavigationErrorHandler(fn) { const providers = [{ provide: ENVIRONMENT_INITIALIZER, multi: true, useValue: () => { const injector = inject(EnvironmentInjector); inject(Router).events.subscribe((e) => { if (e instanceof NavigationError) { injector.runInContext(() => fn(e)); } }); } }]; return routerFeature(7 /* RouterFeatureKind.NavigationErrorHandlerFeature */, providers); } /** * Enables binding information from the `Router` state directly to the inputs of the component in * `Route` configurations. * * @usageNotes * * Basic example of how you can enable the feature: * ``` * const appRoutes: Routes = []; * bootstrapApplication(AppComponent, * { * providers: [ * provideRouter(appRoutes, withComponentInputBinding()) * ] * } * ); * ``` * * @returns A set of providers for use with `provideRouter`. */ export function withComponentInputBinding() { const providers = [ RoutedComponentInputBinder, { provide: INPUT_BINDER, useExisting: RoutedComponentInputBinder }, ]; return routerFeature(8 /* RouterFeatureKind.ComponentInputBindingFeature */, providers); } //# 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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {HashLocationStrategy, LOCATION_INITIALIZED, LocationStrategy, ViewportScroller} from '@angular/common';\nimport {APP_BOOTSTRAP_LISTENER, APP_INITIALIZER, ApplicationRef, Component, ComponentRef, ENVIRONMENT_INITIALIZER, EnvironmentInjector, EnvironmentProviders, inject, InjectFlags, InjectionToken, Injector, makeEnvironmentProviders, NgZone, Provider, Type} from '@angular/core';\nimport {of, Subject} from 'rxjs';\n\nimport {INPUT_BINDER, RoutedComponentInputBinder} from './directives/router_outlet';\nimport {Event, NavigationError, stringifyEvent} from './events';\nimport {Routes} from './models';\nimport {NavigationTransitions} from './navigation_transition';\nimport {Router} from './router';\nimport {InMemoryScrollingOptions, ROUTER_CONFIGURATION, RouterConfigOptions} from './router_config';\nimport {ROUTES} from './router_config_loader';\nimport {PreloadingStrategy, RouterPreloader} from './router_preloader';\nimport {ROUTER_SCROLLER, RouterScroller} from './router_scroller';\nimport {ActivatedRoute} from './router_state';\nimport {UrlSerializer} from './url_tree';\nimport {afterNextNavigation} from './utils/navigations';\n\n\n/**\n * Sets up providers necessary to enable `Router` functionality for the application.\n * Allows to configure a set of routes as well as extra features that should be enabled.\n *\n * @usageNotes\n *\n * Basic example of how you can add a Router to your application:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent, {\n *   providers: [provideRouter(appRoutes)]\n * });\n * ```\n *\n * You can also enable optional features in the Router by adding functions from the `RouterFeatures`\n * type:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes,\n *         withDebugTracing(),\n *         withRouterConfig({paramsInheritanceStrategy: 'always'}))\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link RouterFeatures}\n *\n * @publicApi\n * @param routes A set of `Route`s to use for the application routing table.\n * @param features Optional features to configure additional router behaviors.\n * @returns A set of providers to setup a Router.\n */\nexport function provideRouter(routes: Routes, ...features: RouterFeatures[]): EnvironmentProviders {\n  return makeEnvironmentProviders([\n    {provide: ROUTES, multi: true, useValue: routes},\n    (typeof ngDevMode === 'undefined' || ngDevMode) ?\n        {provide: ROUTER_IS_PROVIDED, useValue: true} :\n        [],\n    {provide: ActivatedRoute, useFactory: rootRoute, deps: [Router]},\n    {provide: APP_BOOTSTRAP_LISTENER, multi: true, useFactory: getBootstrapListener},\n    features.map(feature => feature.ɵproviders),\n  ]);\n}\n\nexport function rootRoute(router: Router): ActivatedRoute {\n  return router.routerState.root;\n}\n\n/**\n * Helper type to represent a Router feature.\n *\n * @publicApi\n */\nexport interface RouterFeature<FeatureKind extends RouterFeatureKind> {\n  ɵkind: FeatureKind;\n  ɵproviders: Provider[];\n}\n\n/**\n * Helper function to create an object that represents a Router feature.\n */\nfunction routerFeature<FeatureKind extends RouterFeatureKind>(\n    kind: FeatureKind, providers: Provider[]): RouterFeature<FeatureKind> {\n  return {ɵkind: kind, ɵproviders: providers};\n}\n\n\n/**\n * An Injection token used to indicate whether `provideRouter` or `RouterModule.forRoot` was ever\n * called.\n */\nexport const ROUTER_IS_PROVIDED =\n    new InjectionToken<boolean>('', {providedIn: 'root', factory: () => false});\n\nconst routerIsProvidedDevModeCheck = {\n  provide: ENVIRONMENT_INITIALIZER,\n  multi: true,\n  useFactory() {\n    return () => {\n      if (!inject(ROUTER_IS_PROVIDED)) {\n        console.warn(\n            '`provideRoutes` was called without `provideRouter` or `RouterModule.forRoot`. ' +\n            'This is likely a mistake.');\n      }\n    };\n  }\n};\n\n/**\n * Registers a [DI provider](guide/glossary#provider) for a set of routes.\n * @param routes The route configuration to provide.\n *\n * @usageNotes\n *\n * ```\n * @NgModule({\n *   providers: [provideRoutes(ROUTES)]\n * })\n * class LazyLoadedChildModule {}\n * ```\n *\n * @deprecated If necessary, provide routes using the `ROUTES` `InjectionToken`.\n * @see {@link ROUTES}\n * @publicApi\n */\nexport function provideRoutes(routes: Routes): Provider[] {\n  return [\n    {provide: ROUTES, multi: true, useValue: routes},\n    (typeof ngDevMode === 'undefined' || ngDevMode) ? routerIsProvidedDevModeCheck : [],\n  ];\n}\n\n/**\n * A type alias for providers returned by `withInMemoryScrolling` for use with `provideRouter`.\n *\n * @see {@link withInMemoryScrolling}\n * @see {@link provideRouter}\n *\n * @publicApi\n */\nexport type InMemoryScrollingFeature = RouterFeature<RouterFeatureKind.InMemoryScrollingFeature>;\n\n/**\n * Enables customizable scrolling behavior for router navigations.\n *\n * @usageNotes\n *\n * Basic example of how you can enable scrolling feature:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withInMemoryScrolling())\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n * @see {@link ViewportScroller}\n *\n * @publicApi\n * @param options Set of configuration parameters to customize scrolling behavior, see\n *     `InMemoryScrollingOptions` for additional information.\n * @returns A set of providers for use with `provideRouter`.\n */\nexport function withInMemoryScrolling(options: InMemoryScrollingOptions = {}):\n    InMemoryScrollingFeature {\n  const providers = [{\n    provide: ROUTER_SCROLLER,\n    useFactory: () => {\n      const viewportScroller = inject(ViewportScroller);\n      const zone = inject(NgZone);\n      const transitions = inject(NavigationTransitions);\n      const urlSerializer = inject(UrlSerializer);\n      return new RouterScroller(urlSerializer, transitions, viewportScroller, zone, options);\n    },\n  }];\n  return routerFeature(RouterFeatureKind.InMemoryScrollingFeature, providers);\n}\n\nexport function getBootstrapListener() {\n  const injector = inject(Injector);\n  return (bootstrappedComponentRef: ComponentRef<unknown>) => {\n    const ref = injector.get(ApplicationRef);\n\n    if (bootstrappedComponentRef !== ref.components[0]) {\n      return;\n    }\n\n    const router = injector.get(Router);\n    const bootstrapDone = injector.get(BOOTSTRAP_DONE);\n\n    if (injector.get(INITIAL_NAVIGATION) === InitialNavigation.EnabledNonBlocking) {\n      router.initialNavigation();\n    }\n\n    injector.get(ROUTER_PRELOADER, null, InjectFlags.Optional)?.setUpPreloading();\n    injector.get(ROUTER_SCROLLER, null, InjectFlags.Optional)?.init();\n    router.resetRootComponentType(ref.componentTypes[0]);\n    if (!bootstrapDone.closed) {\n      bootstrapDone.next();\n      bootstrapDone.complete();\n      bootstrapDone.unsubscribe();\n    }\n  };\n}\n\n/**\n * A subject used to indicate that the bootstrapping phase is done. When initial navigation is\n * `enabledBlocking`, the first navigation waits until bootstrapping is finished before continuing\n * to the activation phase.\n */\nconst BOOTSTRAP_DONE = new InjectionToken<Subject<void>>(\n    (typeof ngDevMode === 'undefined' || ngDevMode) ? 'bootstrap done indicator' : '', {\n      factory: () => {\n        return new Subject<void>();\n      }\n    });\n\n/**\n * This and the INITIAL_NAVIGATION token are used internally only. The public API side of this is\n * configured through the `ExtraOptions`.\n *\n * When set to `EnabledBlocking`, the initial navigation starts before the root\n * component is created. The bootstrap is blocked until the initial navigation is complete. This\n * value is required for [server-side rendering](guide/universal) to work.\n *\n * When set to `EnabledNonBlocking`, the initial navigation starts after the root component has been\n * created. The bootstrap is not blocked on the completion of the initial navigation.\n *\n * When set to `Disabled`, the initial navigation is not performed. The location listener is set up\n * before the root component gets created. Use if there is a reason to have more control over when\n * the router starts its initial navigation due to some complex initialization logic.\n *\n * @see {@link ExtraOptions}\n */\nconst enum InitialNavigation {\n  EnabledBlocking,\n  EnabledNonBlocking,\n  Disabled,\n}\n\nconst INITIAL_NAVIGATION = new InjectionToken<InitialNavigation>(\n    (typeof ngDevMode === 'undefined' || ngDevMode) ? 'initial navigation' : '',\n    {providedIn: 'root', factory: () => InitialNavigation.EnabledNonBlocking});\n\n/**\n * A type alias for providers returned by `withEnabledBlockingInitialNavigation` for use with\n * `provideRouter`.\n *\n * @see {@link withEnabledBlockingInitialNavigation}\n * @see {@link provideRouter}\n *\n * @publicApi\n */\nexport type EnabledBlockingInitialNavigationFeature =\n    RouterFeature<RouterFeatureKind.EnabledBlockingInitialNavigationFeature>;\n\n/**\n * A type alias for providers returned by `withEnabledBlockingInitialNavigation` or\n * `withDisabledInitialNavigation` functions for use with `provideRouter`.\n *\n * @see {@link withEnabledBlockingInitialNavigation}\n * @see {@link withDisabledInitialNavigation}\n * @see {@link provideRouter}\n *\n * @publicApi\n */\nexport type InitialNavigationFeature =\n    EnabledBlockingInitialNavigationFeature|DisabledInitialNavigationFeature;\n\n/**\n * Configures initial navigation to start before the root component is created.\n *\n * The bootstrap is blocked until the initial navigation is complete. This value is required for\n * [server-side rendering](guide/universal) to work.\n *\n * @usageNotes\n *\n * Basic example of how you can enable this navigation behavior:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withEnabledBlockingInitialNavigation())\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n *\n * @publicApi\n * @returns A set of providers for use with `provideRouter`.\n */\nexport function withEnabledBlockingInitialNavigation(): EnabledBlockingInitialNavigationFeature {\n  const providers = [\n    {provide: INITIAL_NAVIGATION, useValue: InitialNavigation.EnabledBlocking},\n    {\n      provide: APP_INITIALIZER,\n      multi: true,\n      deps: [Injector],\n      useFactory: (injector: Injector) => {\n        const locationInitialized: Promise<any> =\n            injector.get(LOCATION_INITIALIZED, Promise.resolve());\n\n        return () => {\n          return locationInitialized.then(() => {\n            return new Promise(resolve => {\n              const router = injector.get(Router);\n              const bootstrapDone = injector.get(BOOTSTRAP_DONE);\n              afterNextNavigation(router, () => {\n                // Unblock APP_INITIALIZER in case the initial navigation was canceled or errored\n                // without a redirect.\n                resolve(true);\n              });\n\n              injector.get(NavigationTransitions).afterPreactivation = () => {\n                // Unblock APP_INITIALIZER once we get to `afterPreactivation`. At this point, we\n                // assume activation will complete successfully (even though this is not\n                // guaranteed).\n                resolve(true);\n                return bootstrapDone.closed ? of(void 0) : bootstrapDone;\n              };\n              router.initialNavigation();\n            });\n          });\n        };\n      }\n    },\n  ];\n  return routerFeature(RouterFeatureKind.EnabledBlockingInitialNavigationFeature, providers);\n}\n\n/**\n * A type alias for providers returned by `withDisabledInitialNavigation` for use with\n * `provideRouter`.\n *\n * @see {@link withDisabledInitialNavigation}\n * @see {@link provideRouter}\n *\n * @publicApi\n */\nexport type DisabledInitialNavigationFeature =\n    RouterFeature<RouterFeatureKind.DisabledInitialNavigationFeature>;\n\n/**\n * Disables initial navigation.\n *\n * Use if there is a reason to have more control over when the router starts its initial navigation\n * due to some complex initialization logic.\n *\n * @usageNotes\n *\n * Basic example of how you can disable initial navigation:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withDisabledInitialNavigation())\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n *\n * @returns A set of providers for use with `provideRouter`.\n *\n * @publicApi\n */\nexport function withDisabledInitialNavigation(): DisabledInitialNavigationFeature {\n  const providers = [\n    {\n      provide: APP_INITIALIZER,\n      multi: true,\n      useFactory: () => {\n        const router = inject(Router);\n        return () => {\n          router.setUpLocationChangeListener();\n        };\n      }\n    },\n    {provide: INITIAL_NAVIGATION, useValue: InitialNavigation.Disabled}\n  ];\n  return routerFeature(RouterFeatureKind.DisabledInitialNavigationFeature, providers);\n}\n\n/**\n * A type alias for providers returned by `withDebugTracing` for use with `provideRouter`.\n *\n * @see {@link withDebugTracing}\n * @see {@link provideRouter}\n *\n * @publicApi\n */\nexport type DebugTracingFeature = RouterFeature<RouterFeatureKind.DebugTracingFeature>;\n\n/**\n * Enables logging of all internal navigation events to the console.\n * Extra logging might be useful for debugging purposes to inspect Router event sequence.\n *\n * @usageNotes\n *\n * Basic example of how you can enable debug tracing:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withDebugTracing())\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n *\n * @returns A set of providers for use with `provideRouter`.\n *\n * @publicApi\n */\nexport function withDebugTracing(): DebugTracingFeature {\n  let providers: Provider[] = [];\n  if (typeof ngDevMode === 'undefined' || ngDevMode) {\n    providers = [{\n      provide: ENVIRONMENT_INITIALIZER,\n      multi: true,\n      useFactory: () => {\n        const router = inject(Router);\n        return () => router.events.subscribe((e: Event) => {\n          // tslint:disable:no-console\n          console.group?.(`Router Event: ${(<any>e.constructor).name}`);\n          console.log(stringifyEvent(e));\n          console.log(e);\n          console.groupEnd?.();\n          // tslint:enable:no-console\n        });\n      }\n    }];\n  } else {\n    providers = [];\n  }\n  return routerFeature(RouterFeatureKind.DebugTracingFeature, providers);\n}\n\nconst ROUTER_PRELOADER = new InjectionToken<RouterPreloader>(\n    (typeof ngDevMode === 'undefined' || ngDevMode) ? 'router preloader' : '');\n\n/**\n * A type alias that represents a feature which enables preloading in Router.\n * The type is used to describe the return value of the `withPreloading` function.\n *\n * @see {@link withPreloading}\n * @see {@link provideRouter}\n *\n * @publicApi\n */\nexport type PreloadingFeature = RouterFeature<RouterFeatureKind.PreloadingFeature>;\n\n/**\n * Allows to configure a preloading strategy to use. The strategy is configured by providing a\n * reference to a class that implements a `PreloadingStrategy`.\n *\n * @usageNotes\n *\n * Basic example of how you can configure preloading:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withPreloading(PreloadAllModules))\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n *\n * @param preloadingStrategy A reference to a class that implements a `PreloadingStrategy` that\n *     should be used.\n * @returns A set of providers for use with `provideRouter`.\n *\n * @publicApi\n */\nexport function withPreloading(preloadingStrategy: Type<PreloadingStrategy>): PreloadingFeature {\n  const providers = [\n    {provide: ROUTER_PRELOADER, useExisting: RouterPreloader},\n    {provide: PreloadingStrategy, useExisting: preloadingStrategy},\n  ];\n  return routerFeature(RouterFeatureKind.PreloadingFeature, providers);\n}\n\n/**\n * A type alias for providers returned by `withRouterConfig` for use with `provideRouter`.\n *\n * @see {@link withRouterConfig}\n * @see {@link provideRouter}\n *\n * @publicApi\n */\nexport type RouterConfigurationFeature =\n    RouterFeature<RouterFeatureKind.RouterConfigurationFeature>;\n\n/**\n * Allows to provide extra parameters to configure Router.\n *\n * @usageNotes\n *\n * Basic example of how you can provide extra configuration options:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withRouterConfig({\n *          onSameUrlNavigation: 'reload'\n *       }))\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n *\n * @param options A set of parameters to configure Router, see `RouterConfigOptions` for\n *     additional information.\n * @returns A set of providers for use with `provideRouter`.\n *\n * @publicApi\n */\nexport function withRouterConfig(options: RouterConfigOptions): RouterConfigurationFeature {\n  const providers = [\n    {provide: ROUTER_CONFIGURATION, useValue: options},\n  ];\n  return routerFeature(RouterFeatureKind.RouterConfigurationFeature, providers);\n}\n\n/**\n * A type alias for providers returned by `withHashLocation` for use with `provideRouter`.\n *\n * @see {@link withHashLocation}\n * @see {@link provideRouter}\n *\n * @publicApi\n */\nexport type RouterHashLocationFeature = RouterFeature<RouterFeatureKind.RouterHashLocationFeature>;\n\n/**\n * Provides the location strategy that uses the URL fragment instead of the history API.\n *\n * @usageNotes\n *\n * Basic example of how you can use the hash location option:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withHashLocation())\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n * @see {@link HashLocationStrategy}\n *\n * @returns A set of providers for use with `provideRouter`.\n *\n * @publicApi\n */\nexport function withHashLocation(): RouterConfigurationFeature {\n  const providers = [\n    {provide: LocationStrategy, useClass: HashLocationStrategy},\n  ];\n  return routerFeature(RouterFeatureKind.RouterConfigurationFeature, providers);\n}\n\n/**\n * A type alias for providers returned by `withNavigationErrorHandler` for use with `provideRouter`.\n *\n * @see {@link withNavigationErrorHandler}\n * @see {@link provideRouter}\n *\n * @publicApi\n */\nexport type NavigationErrorHandlerFeature =\n    RouterFeature<RouterFeatureKind.NavigationErrorHandlerFeature>;\n\n/**\n * Subscribes to the Router's navigation events and calls the given function when a\n * `NavigationError` happens.\n *\n * This function is run inside application's [injection context](guide/dependency-injection-context)\n * so you can use the [`inject`](api/core/inject) function.\n *\n * @usageNotes\n *\n * Basic example of how you can use the error handler option:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withNavigationErrorHandler((e: NavigationError) =>\n * inject(MyErrorTracker).trackError(e)))\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link NavigationError}\n * @see {@link core/inject}\n * @see {@link runInInjectionContext}\n *\n * @returns A set of providers for use with `provideRouter`.\n *\n * @publicApi\n */\nexport function withNavigationErrorHandler(fn: (error: NavigationError) => void):\n    NavigationErrorHandlerFeature {\n  const providers = [{\n    provide: ENVIRONMENT_INITIALIZER,\n    multi: true,\n    useValue: () => {\n      const injector = inject(EnvironmentInjector);\n      inject(Router).events.subscribe((e) => {\n        if (e instanceof NavigationError) {\n          injector.runInContext(() => fn(e));\n        }\n      });\n    }\n  }];\n  return routerFeature(RouterFeatureKind.NavigationErrorHandlerFeature, providers);\n}\n\n/**\n * A type alias for providers returned by `withComponentInputBinding` for use with `provideRouter`.\n *\n * @see {@link withComponentInputBinding}\n * @see {@link provideRouter}\n *\n * @publicApi\n */\nexport type ComponentInputBindingFeature =\n    RouterFeature<RouterFeatureKind.ComponentInputBindingFeature>;\n\n/**\n * Enables binding information from the `Router` state directly to the inputs of the component in\n * `Route` configurations.\n *\n * @usageNotes\n *\n * Basic example of how you can enable the feature:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withComponentInputBinding())\n *     ]\n *   }\n * );\n * ```\n *\n * @returns A set of providers for use with `provideRouter`.\n */\nexport function withComponentInputBinding(): ComponentInputBindingFeature {\n  const providers = [\n    RoutedComponentInputBinder,\n    {provide: INPUT_BINDER, useExisting: RoutedComponentInputBinder},\n  ];\n\n  return routerFeature(RouterFeatureKind.ComponentInputBindingFeature, providers);\n}\n\n/**\n * A type alias that represents all Router features available for use with `provideRouter`.\n * Features can be enabled by adding special functions to the `provideRouter` call.\n * See documentation for each symbol to find corresponding function name. See also `provideRouter`\n * documentation on how to use those functions.\n *\n * @see {@link provideRouter}\n *\n * @publicApi\n */\nexport type RouterFeatures =\n    PreloadingFeature|DebugTracingFeature|InitialNavigationFeature|InMemoryScrollingFeature|\n    RouterConfigurationFeature|NavigationErrorHandlerFeature|ComponentInputBindingFeature;\n\n/**\n * The list of features as an enum to uniquely type each feature.\n */\nexport const enum RouterFeatureKind {\n  PreloadingFeature,\n  DebugTracingFeature,\n  EnabledBlockingInitialNavigationFeature,\n  DisabledInitialNavigationFeature,\n  InMemoryScrollingFeature,\n  RouterConfigurationFeature,\n  RouterHashLocationFeature,\n  NavigationErrorHandlerFeature,\n  ComponentInputBindingFeature,\n}\n"]}