5296c04f61
In `BrowserModule` the value of `LOCALE_ID` is defined in the `APPLICATION_MODULE_PROVIDERS` after `APP_INITIALIZER` has run. This PR ensures that `LOCALE_ID` is also set for ivy at the same moment which allows the application to fetch the locale from a backend (for example). Fixes #31465 FW-1436 #resolve PR Close #31566
116 lines
3.9 KiB
TypeScript
116 lines
3.9 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_INITIALIZER, ApplicationInitStatus} from './application_init';
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import {ApplicationRef} from './application_ref';
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import {APP_ID_RANDOM_PROVIDER} from './application_tokens';
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import {IterableDiffers, KeyValueDiffers, defaultIterableDiffers, defaultKeyValueDiffers} from './change_detection/change_detection';
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import {Console} from './console';
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import {Injector, StaticProvider} from './di';
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import {Inject, Optional, SkipSelf} from './di/metadata';
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import {ErrorHandler} from './error_handler';
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import {DEFAULT_LOCALE_ID} from './i18n/localization';
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import {LOCALE_ID} from './i18n/tokens';
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import {ivyEnabled} from './ivy_switch';
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import {ComponentFactoryResolver} from './linker';
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import {Compiler} from './linker/compiler';
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import {NgModule} from './metadata';
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import {SCHEDULER} from './render3/component_ref';
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import {setLocaleId} from './render3/i18n';
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import {NgZone} from './zone';
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export function _iterableDiffersFactory() {
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return defaultIterableDiffers;
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}
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export function _keyValueDiffersFactory() {
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return defaultKeyValueDiffers;
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}
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export function _localeFactory(locale?: string): string {
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if (locale) {
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if (ivyEnabled) {
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setLocaleId(locale);
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}
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return locale;
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}
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// Use `goog.LOCALE` as default value for `LOCALE_ID` token for Closure Compiler.
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// Note: default `goog.LOCALE` value is `en`, when Angular used `en-US`. In order to preserve
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// backwards compatibility, we use Angular default value over Closure Compiler's one.
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if (ngI18nClosureMode && typeof goog !== 'undefined' && goog.LOCALE !== 'en') {
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if (ivyEnabled) {
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setLocaleId(goog.LOCALE);
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}
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return goog.LOCALE;
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}
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return DEFAULT_LOCALE_ID;
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}
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/**
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* A built-in [dependency injection token](guide/glossary#di-token)
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* that is used to configure the root injector for bootstrapping.
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*/
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export const APPLICATION_MODULE_PROVIDERS: StaticProvider[] = [
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{
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provide: ApplicationRef,
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useClass: ApplicationRef,
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deps:
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[NgZone, Console, Injector, ErrorHandler, ComponentFactoryResolver, ApplicationInitStatus]
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},
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{provide: SCHEDULER, deps: [NgZone], useFactory: zoneSchedulerFactory},
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{
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provide: ApplicationInitStatus,
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useClass: ApplicationInitStatus,
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deps: [[new Optional(), APP_INITIALIZER]]
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},
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{provide: Compiler, useClass: Compiler, deps: []},
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APP_ID_RANDOM_PROVIDER,
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{provide: IterableDiffers, useFactory: _iterableDiffersFactory, deps: []},
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{provide: KeyValueDiffers, useFactory: _keyValueDiffersFactory, deps: []},
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{
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provide: LOCALE_ID,
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useFactory: _localeFactory,
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deps: [[new Inject(LOCALE_ID), new Optional(), new SkipSelf()]]
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},
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];
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/**
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* Schedule work at next available slot.
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*
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* In Ivy this is just `requestAnimationFrame`. For compatibility reasons when bootstrapped
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* using `platformRef.bootstrap` we need to use `NgZone.onStable` as the scheduling mechanism.
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* This overrides the scheduling mechanism in Ivy to `NgZone.onStable`.
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*
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* @param ngZone NgZone to use for scheduling.
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*/
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export function zoneSchedulerFactory(ngZone: NgZone): (fn: () => void) => void {
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let queue: (() => void)[] = [];
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ngZone.onStable.subscribe(() => {
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while (queue.length) {
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queue.pop() !();
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}
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});
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return function(fn: () => void) { queue.push(fn); };
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}
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/**
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* Configures the root injector for an app with
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* providers of `@angular/core` dependencies that `ApplicationRef` needs
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* to bootstrap components.
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*
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* Re-exported by `BrowserModule`, which is included automatically in the root
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* `AppModule` when you create a new app with the CLI `new` command.
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*
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* @publicApi
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*/
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@NgModule({providers: APPLICATION_MODULE_PROVIDERS})
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export class ApplicationModule {
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// Inject ApplicationRef to make it eager...
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constructor(appRef: ApplicationRef) {}
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}
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