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Revert "refactor(router): remove deprecated `initialNavigation` options (#18781)" 

This reverts commit d76761bf01.
This commit is contained in:
Miško Hevery 2017-08-22 18:39:06 -05:00
parent 7236095f6f
commit a80ecf6a77
3 changed files with 106 additions and 6 deletions
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2
aio/content/examples/ngmodule/src/index.3.html
View File

@ -1,7 +1,7 @@
<!DOCTYPE html>
<html>
<head>
<base href="/index.3.html">
<base href="/">
<title>NgModule - Contact</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">

37
packages/router/src/router_module.ts
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@ -218,14 +218,24 @@ export function provideRoutes(routes: Routes): any {
* The bootstrap is blocked until the initial navigation is complete.
* * 'disabled' - the initial navigation is not performed. The location listener is set up before
* the root component gets created.
* * 'legacy_enabled'- the initial navigation starts after the root component has been created.
* The bootstrap is not blocked until the initial navigation is complete. @deprecated
* * 'legacy_disabled'- the initial navigation is not performed. The location listener is set up
* after @deprecated
* the root component gets created.
* * `true` - same as 'legacy_enabled'. @deprecated since v4
* * `false` - same as 'legacy_disabled'. @deprecated since v4
*
* The 'enabled' option should be used for applications unless there is a reason to have
* more control over when the router starts its initial navigation due to some complex
* initialization logic. In this case, 'disabled' should be used.
*
* The 'legacy_enabled' and 'legacy_disabled' should not be used for new applications.
*
* @experimental
*/
export type InitialNavigation = 'enabled' | 'disabled';
export type InitialNavigation =
true | false | 'enabled' | 'disabled' | 'legacy_enabled' | 'legacy_disabled';
/**
* @whatItDoes Represents options to configure the router.
@ -244,7 +254,7 @@ export interface ExtraOptions {
useHash?: boolean;
/**
* Enables/Disables the initial navigation (enabled by default).
* Disables the initial navigation.
*/
initialNavigation?: InitialNavigation;
@ -322,12 +332,14 @@ export class RouterInitializer {
const router = this.injector.get(Router);
const opts = this.injector.get(ROUTER_CONFIGURATION);
if (opts.initialNavigation === 'disabled') {
if (this.isLegacyDisabled(opts) || this.isLegacyEnabled(opts)) {
resolve(true);
} else if (opts.initialNavigation === 'disabled') {
router.setUpLocationChangeListener();
resolve(true);
} else if (
opts.initialNavigation === 'enabled' || typeof opts.initialNavigation === 'undefined') {
} else if (opts.initialNavigation === 'enabled') {
router.hooks.afterPreactivation = () => {
// only the initial navigation should be delayed
if (!this.initNavigation) {
@ -360,11 +372,26 @@ export class RouterInitializer {
return;
}
if (this.isLegacyEnabled(opts)) {
router.initialNavigation();
} else if (this.isLegacyDisabled(opts)) {
router.setUpLocationChangeListener();
}
preloader.setUpPreloading();
router.resetRootComponentType(ref.componentTypes[0]);
this.resultOfPreactivationDone.next(null !);
this.resultOfPreactivationDone.complete();
}
private isLegacyEnabled(opts: ExtraOptions): boolean {
return opts.initialNavigation === 'legacy_enabled' || opts.initialNavigation === true ||
opts.initialNavigation === undefined;
}
private isLegacyDisabled(opts: ExtraOptions): boolean {
return opts.initialNavigation === 'legacy_disabled' || opts.initialNavigation === false;
}
}
export function getAppInitializer(r: RouterInitializer) {

73
packages/router/test/bootstrap.spec.ts
View File

@ -90,6 +90,48 @@ describe('bootstrap', () => {
});
});
it('should NOT wait for resolvers to complete when initialNavigation = legacy_enabled',
(done) => {
@Component({selector: 'test', template: 'test'})
class TestCmpLegacyEnabled {
}
@NgModule({
imports: [
BrowserModule,
RouterModule.forRoot(
[{path: '**', component: TestCmpLegacyEnabled, resolve: {test: TestResolver}}],
{useHash: true, initialNavigation: 'legacy_enabled'})
],
declarations: [RootCmp, TestCmpLegacyEnabled],
bootstrap: [RootCmp],
providers: [...testProviders, TestResolver],
schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
class TestModule {
constructor(router: Router) {
log.push('TestModule');
router.events.subscribe(e => log.push(e.constructor.name));
}
}
platformBrowserDynamic([]).bootstrapModule(TestModule).then(res => {
const router = res.injector.get(Router);
expect(router.routerState.snapshot.root.firstChild).toBeNull();
// ResolveEnd has not been emitted yet because bootstrap returned too early
expect(log).toEqual([
'TestModule', 'RootCmp', 'NavigationStart', 'RoutesRecognized', 'GuardsCheckStart',
'GuardsCheckEnd', 'ResolveStart'
]);
router.events.subscribe((e) => {
if (e instanceof NavigationEnd) {
done();
}
});
});
});
it('should not run navigation when initialNavigation = disabled', (done) => {
@Component({selector: 'test', template: 'test'})
class TestCmpDiabled {
@ -120,6 +162,37 @@ describe('bootstrap', () => {
});
});
it('should not run navigation when initialNavigation = legacy_disabled', (done) => {
@Component({selector: 'test', template: 'test'})
class TestCmpLegacyDisabled {
}
@NgModule({
imports: [
BrowserModule,
RouterModule.forRoot(
[{path: '**', component: TestCmpLegacyDisabled, resolve: {test: TestResolver}}],
{useHash: true, initialNavigation: 'legacy_disabled'})
],
declarations: [RootCmp, TestCmpLegacyDisabled],
bootstrap: [RootCmp],
providers: [...testProviders, TestResolver],
schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
class TestModule {
constructor(router: Router) {
log.push('TestModule');
router.events.subscribe(e => log.push(e.constructor.name));
}
}
platformBrowserDynamic([]).bootstrapModule(TestModule).then(res => {
const router = res.injector.get(Router);
expect(log).toEqual(['TestModule', 'RootCmp']);
done();
});
});
it('should not init router navigation listeners if a non root component is bootstrapped',
(done) => {
@NgModule({