@angular/common
Version:
Angular - commonly needed directives and services
154 lines • 19.6 kB
JavaScript
/**
* @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 { ChangeDetectorRef, Pipe, untracked, ɵisPromise, ɵisSubscribable, } from '@angular/core';
import { invalidPipeArgumentError } from './invalid_pipe_argument_error';
import * as i0 from "@angular/core";
class SubscribableStrategy {
createSubscription(async, updateLatestValue) {
// Subscription can be side-effectful, and we don't want any signal reads which happen in the
// side effect of the subscription to be tracked by a component's template when that
// subscription is triggered via the async pipe. So we wrap the subscription in `untracked` to
// decouple from the current reactive context.
//
// `untracked` also prevents signal _writes_ which happen in the subscription side effect from
// being treated as signal writes during the template evaluation (which throws errors).
return untracked(() => async.subscribe({
next: updateLatestValue,
error: (e) => {
throw e;
},
}));
}
dispose(subscription) {
// See the comment in `createSubscription` above on the use of `untracked`.
untracked(() => subscription.unsubscribe());
}
}
class PromiseStrategy {
createSubscription(async, updateLatestValue) {
return async.then(updateLatestValue, (e) => {
throw e;
});
}
dispose(subscription) { }
}
const _promiseStrategy = new PromiseStrategy();
const _subscribableStrategy = new SubscribableStrategy();
/**
* @ngModule CommonModule
* @description
*
* Unwraps a value from an asynchronous primitive.
*
* The `async` pipe subscribes to an `Observable` or `Promise` and returns the latest value it has
* emitted. When a new value is emitted, the `async` pipe marks the component to be checked for
* changes. When the component gets destroyed, the `async` pipe unsubscribes automatically to avoid
* potential memory leaks. When the reference of the expression changes, the `async` pipe
* automatically unsubscribes from the old `Observable` or `Promise` and subscribes to the new one.
*
* @usageNotes
*
* ### Examples
*
* This example binds a `Promise` to the view. Clicking the `Resolve` button resolves the
* promise.
*
* {@example common/pipes/ts/async_pipe.ts region='AsyncPipePromise'}
*
* It's also possible to use `async` with Observables. The example below binds the `time` Observable
* to the view. The Observable continuously updates the view with the current time.
*
* {@example common/pipes/ts/async_pipe.ts region='AsyncPipeObservable'}
*
* @publicApi
*/
export class AsyncPipe {
constructor(ref) {
this._latestValue = null;
this.markForCheckOnValueUpdate = true;
this._subscription = null;
this._obj = null;
this._strategy = null;
// Assign `ref` into `this._ref` manually instead of declaring `_ref` in the constructor
// parameter list, as the type of `this._ref` includes `null` unlike the type of `ref`.
this._ref = ref;
}
ngOnDestroy() {
if (this._subscription) {
this._dispose();
}
// Clear the `ChangeDetectorRef` and its association with the view data, to mitigate
// potential memory leaks in Observables that could otherwise cause the view data to
// be retained.
// https://github.com/angular/angular/issues/17624
this._ref = null;
}
transform(obj) {
if (!this._obj) {
if (obj) {
try {
// Only call `markForCheck` if the value is updated asynchronously.
// Synchronous updates _during_ subscription should not wastefully mark for check -
// this value is already going to be returned from the transform function.
this.markForCheckOnValueUpdate = false;
this._subscribe(obj);
}
finally {
this.markForCheckOnValueUpdate = true;
}
}
return this._latestValue;
}
if (obj !== this._obj) {
this._dispose();
return this.transform(obj);
}
return this._latestValue;
}
_subscribe(obj) {
this._obj = obj;
this._strategy = this._selectStrategy(obj);
this._subscription = this._strategy.createSubscription(obj, (value) => this._updateLatestValue(obj, value));
}
_selectStrategy(obj) {
if (ɵisPromise(obj)) {
return _promiseStrategy;
}
if (ɵisSubscribable(obj)) {
return _subscribableStrategy;
}
throw invalidPipeArgumentError(AsyncPipe, obj);
}
_dispose() {
// Note: `dispose` is only called if a subscription has been initialized before, indicating
// that `this._strategy` is also available.
this._strategy.dispose(this._subscription);
this._latestValue = null;
this._subscription = null;
this._obj = null;
}
_updateLatestValue(async, value) {
if (async === this._obj) {
this._latestValue = value;
if (this.markForCheckOnValueUpdate) {
this._ref?.markForCheck();
}
}
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.3.9", ngImport: i0, type: AsyncPipe, deps: [{ token: i0.ChangeDetectorRef }], target: i0.ɵɵFactoryTarget.Pipe }); }
static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: "14.0.0", version: "17.3.9", ngImport: i0, type: AsyncPipe, isStandalone: true, name: "async", pure: false }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.3.9", ngImport: i0, type: AsyncPipe, decorators: [{
type: Pipe,
args: [{
name: 'async',
pure: false,
standalone: true,
}]
}], ctorParameters: () => [{ type: i0.ChangeDetectorRef }] });
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"async_pipe.js","sourceRoot":"","sources":["../../../../../../../packages/common/src/pipes/async_pipe.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AAEH,OAAO,EACL,iBAAiB,EAGjB,IAAI,EAEJ,SAAS,EACT,UAAU,EACV,eAAe,GAChB,MAAM,eAAe,CAAC;AAGvB,OAAO,EAAC,wBAAwB,EAAC,MAAM,+BAA+B,CAAC;;AAUvE,MAAM,oBAAoB;IACxB,kBAAkB,CAAC,KAAwB,EAAE,iBAAsB;QACjE,6FAA6F;QAC7F,oFAAoF;QACpF,8FAA8F;QAC9F,8CAA8C;QAC9C,EAAE;QACF,8FAA8F;QAC9F,uFAAuF;QACvF,OAAO,SAAS,CAAC,GAAG,EAAE,CACpB,KAAK,CAAC,SAAS,CAAC;YACd,IAAI,EAAE,iBAAiB;YACvB,KAAK,EAAE,CAAC,CAAM,EAAE,EAAE;gBAChB,MAAM,CAAC,CAAC;YACV,CAAC;SACF,CAAC,CACH,CAAC;IACJ,CAAC;IAED,OAAO,CAAC,YAA4B;QAClC,2EAA2E;QAC3E,SAAS,CAAC,GAAG,EAAE,CAAC,YAAY,CAAC,WAAW,EAAE,CAAC,CAAC;IAC9C,CAAC;CACF;AAED,MAAM,eAAe;IACnB,kBAAkB,CAAC,KAAmB,EAAE,iBAAkC;QACxE,OAAO,KAAK,CAAC,IAAI,CAAC,iBAAiB,EAAE,CAAC,CAAC,EAAE,EAAE;YACzC,MAAM,CAAC,CAAC;QACV,CAAC,CAAC,CAAC;IACL,CAAC;IAED,OAAO,CAAC,YAA0B,IAAS,CAAC;CAC7C;AAED,MAAM,gBAAgB,GAAG,IAAI,eAAe,EAAE,CAAC;AAC/C,MAAM,qBAAqB,GAAG,IAAI,oBAAoB,EAAE,CAAC;AAEzD;;;;;;;;;;;;;;;;;;;;;;;;;;;GA2BG;AAMH,MAAM,OAAO,SAAS;IASpB,YAAY,GAAsB;QAP1B,iBAAY,GAAQ,IAAI,CAAC;QACzB,8BAAyB,GAAG,IAAI,CAAC;QAEjC,kBAAa,GAAyC,IAAI,CAAC;QAC3D,SAAI,GAAgE,IAAI,CAAC;QACzE,cAAS,GAAgC,IAAI,CAAC;QAGpD,wFAAwF;QACxF,uFAAuF;QACvF,IAAI,CAAC,IAAI,GAAG,GAAG,CAAC;IAClB,CAAC;IAED,WAAW;QACT,IAAI,IAAI,CAAC,aAAa,EAAE,CAAC;YACvB,IAAI,CAAC,QAAQ,EAAE,CAAC;QAClB,CAAC;QACD,oFAAoF;QACpF,oFAAoF;QACpF,eAAe;QACf,kDAAkD;QAClD,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC;IACnB,CAAC;IASD,SAAS,CAAI,GAAoE;QAC/E,IAAI,CAAC,IAAI,CAAC,IAAI,EAAE,CAAC;YACf,IAAI,GAAG,EAAE,CAAC;gBACR,IAAI,CAAC;oBACH,mEAAmE;oBACnE,mFAAmF;oBACnF,0EAA0E;oBAC1E,IAAI,CAAC,yBAAyB,GAAG,KAAK,CAAC;oBACvC,IAAI,CAAC,UAAU,CAAC,GAAG,CAAC,CAAC;gBACvB,CAAC;wBAAS,CAAC;oBACT,IAAI,CAAC,yBAAyB,GAAG,IAAI,CAAC;gBACxC,CAAC;YACH,CAAC;YACD,OAAO,IAAI,CAAC,YAAY,CAAC;QAC3B,CAAC;QAED,IAAI,GAAG,KAAK,IAAI,CAAC,IAAI,EAAE,CAAC;YACtB,IAAI,CAAC,QAAQ,EAAE,CAAC;YAChB,OAAO,IAAI,CAAC,SAAS,CAAC,GAAG,CAAC,CAAC;QAC7B,CAAC;QAED,OAAO,IAAI,CAAC,YAAY,CAAC;IAC3B,CAAC;IAEO,UAAU,CAAC,GAAyD;QAC1E,IAAI,CAAC,IAAI,GAAG,GAAG,CAAC;QAChB,IAAI,CAAC,SAAS,GAAG,IAAI,CAAC,eAAe,CAAC,GAAG,CAAC,CAAC;QAC3C,IAAI,CAAC,aAAa,GAAG,IAAI,CAAC,SAAS,CAAC,kBAAkB,CAAC,GAAG,EAAE,CAAC,KAAa,EAAE,EAAE,CAC5E,IAAI,CAAC,kBAAkB,CAAC,GAAG,EAAE,KAAK,CAAC,CACpC,CAAC;IACJ,CAAC;IAEO,eAAe,CACrB,GAAyD;QAEzD,IAAI,UAAU,CAAC,GAAG,CAAC,EAAE,CAAC;YACpB,OAAO,gBAAgB,CAAC;QAC1B,CAAC;QAED,IAAI,eAAe,CAAC,GAAG,CAAC,EAAE,CAAC;YACzB,OAAO,qBAAqB,CAAC;QAC/B,CAAC;QAED,MAAM,wBAAwB,CAAC,SAAS,EAAE,GAAG,CAAC,CAAC;IACjD,CAAC;IAEO,QAAQ;QACd,2FAA2F;QAC3F,2CAA2C;QAC3C,IAAI,CAAC,SAAU,CAAC,OAAO,CAAC,IAAI,CAAC,aAAc,CAAC,CAAC;QAC7C,IAAI,CAAC,YAAY,GAAG,IAAI,CAAC;QACzB,IAAI,CAAC,aAAa,GAAG,IAAI,CAAC;QAC1B,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC;IACnB,CAAC;IAEO,kBAAkB,CAAC,KAAU,EAAE,KAAa;QAClD,IAAI,KAAK,KAAK,IAAI,CAAC,IAAI,EAAE,CAAC;YACxB,IAAI,CAAC,YAAY,GAAG,KAAK,CAAC;YAC1B,IAAI,IAAI,CAAC,yBAAyB,EAAE,CAAC;gBACnC,IAAI,CAAC,IAAI,EAAE,YAAY,EAAE,CAAC;YAC5B,CAAC;QACH,CAAC;IACH,CAAC;yHA/FU,SAAS;uHAAT,SAAS;;sGAAT,SAAS;kBALrB,IAAI;mBAAC;oBACJ,IAAI,EAAE,OAAO;oBACb,IAAI,EAAE,KAAK;oBACX,UAAU,EAAE,IAAI;iBACjB","sourcesContent":["/**\n * @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 {\n  ChangeDetectorRef,\n  EventEmitter,\n  OnDestroy,\n  Pipe,\n  PipeTransform,\n  untracked,\n  ɵisPromise,\n  ɵisSubscribable,\n} from '@angular/core';\nimport {Observable, Subscribable, Unsubscribable} from 'rxjs';\n\nimport {invalidPipeArgumentError} from './invalid_pipe_argument_error';\n\ninterface SubscriptionStrategy {\n  createSubscription(\n    async: Subscribable<any> | Promise<any>,\n    updateLatestValue: any,\n  ): Unsubscribable | Promise<any>;\n  dispose(subscription: Unsubscribable | Promise<any>): void;\n}\n\nclass SubscribableStrategy implements SubscriptionStrategy {\n  createSubscription(async: Subscribable<any>, updateLatestValue: any): Unsubscribable {\n    // Subscription can be side-effectful, and we don't want any signal reads which happen in the\n    // side effect of the subscription to be tracked by a component's template when that\n    // subscription is triggered via the async pipe. So we wrap the subscription in `untracked` to\n    // decouple from the current reactive context.\n    //\n    // `untracked` also prevents signal _writes_ which happen in the subscription side effect from\n    // being treated as signal writes during the template evaluation (which throws errors).\n    return untracked(() =>\n      async.subscribe({\n        next: updateLatestValue,\n        error: (e: any) => {\n          throw e;\n        },\n      }),\n    );\n  }\n\n  dispose(subscription: Unsubscribable): void {\n    // See the comment in `createSubscription` above on the use of `untracked`.\n    untracked(() => subscription.unsubscribe());\n  }\n}\n\nclass PromiseStrategy implements SubscriptionStrategy {\n  createSubscription(async: Promise<any>, updateLatestValue: (v: any) => any): Promise<any> {\n    return async.then(updateLatestValue, (e) => {\n      throw e;\n    });\n  }\n\n  dispose(subscription: Promise<any>): void {}\n}\n\nconst _promiseStrategy = new PromiseStrategy();\nconst _subscribableStrategy = new SubscribableStrategy();\n\n/**\n * @ngModule CommonModule\n * @description\n *\n * Unwraps a value from an asynchronous primitive.\n *\n * The `async` pipe subscribes to an `Observable` or `Promise` and returns the latest value it has\n * emitted. When a new value is emitted, the `async` pipe marks the component to be checked for\n * changes. When the component gets destroyed, the `async` pipe unsubscribes automatically to avoid\n * potential memory leaks. When the reference of the expression changes, the `async` pipe\n * automatically unsubscribes from the old `Observable` or `Promise` and subscribes to the new one.\n *\n * @usageNotes\n *\n * ### Examples\n *\n * This example binds a `Promise` to the view. Clicking the `Resolve` button resolves the\n * promise.\n *\n * {@example common/pipes/ts/async_pipe.ts region='AsyncPipePromise'}\n *\n * It's also possible to use `async` with Observables. The example below binds the `time` Observable\n * to the view. The Observable continuously updates the view with the current time.\n *\n * {@example common/pipes/ts/async_pipe.ts region='AsyncPipeObservable'}\n *\n * @publicApi\n */\n@Pipe({\n  name: 'async',\n  pure: false,\n  standalone: true,\n})\nexport class AsyncPipe implements OnDestroy, PipeTransform {\n  private _ref: ChangeDetectorRef | null;\n  private _latestValue: any = null;\n  private markForCheckOnValueUpdate = true;\n\n  private _subscription: Unsubscribable | Promise<any> | null = null;\n  private _obj: Subscribable<any> | Promise<any> | EventEmitter<any> | null = null;\n  private _strategy: SubscriptionStrategy | null = null;\n\n  constructor(ref: ChangeDetectorRef) {\n    // Assign `ref` into `this._ref` manually instead of declaring `_ref` in the constructor\n    // parameter list, as the type of `this._ref` includes `null` unlike the type of `ref`.\n    this._ref = ref;\n  }\n\n  ngOnDestroy(): void {\n    if (this._subscription) {\n      this._dispose();\n    }\n    // Clear the `ChangeDetectorRef` and its association with the view data, to mitigate\n    // potential memory leaks in Observables that could otherwise cause the view data to\n    // be retained.\n    // https://github.com/angular/angular/issues/17624\n    this._ref = null;\n  }\n\n  // NOTE(@benlesh): Because Observable has deprecated a few call patterns for `subscribe`,\n  // TypeScript has a hard time matching Observable to Subscribable, for more information\n  // see https://github.com/microsoft/TypeScript/issues/43643\n\n  transform<T>(obj: Observable<T> | Subscribable<T> | Promise<T>): T | null;\n  transform<T>(obj: null | undefined): null;\n  transform<T>(obj: Observable<T> | Subscribable<T> | Promise<T> | null | undefined): T | null;\n  transform<T>(obj: Observable<T> | Subscribable<T> | Promise<T> | null | undefined): T | null {\n    if (!this._obj) {\n      if (obj) {\n        try {\n          // Only call `markForCheck` if the value is updated asynchronously.\n          // Synchronous updates _during_ subscription should not wastefully mark for check -\n          // this value is already going to be returned from the transform function.\n          this.markForCheckOnValueUpdate = false;\n          this._subscribe(obj);\n        } finally {\n          this.markForCheckOnValueUpdate = true;\n        }\n      }\n      return this._latestValue;\n    }\n\n    if (obj !== this._obj) {\n      this._dispose();\n      return this.transform(obj);\n    }\n\n    return this._latestValue;\n  }\n\n  private _subscribe(obj: Subscribable<any> | Promise<any> | EventEmitter<any>): void {\n    this._obj = obj;\n    this._strategy = this._selectStrategy(obj);\n    this._subscription = this._strategy.createSubscription(obj, (value: Object) =>\n      this._updateLatestValue(obj, value),\n    );\n  }\n\n  private _selectStrategy(\n    obj: Subscribable<any> | Promise<any> | EventEmitter<any>,\n  ): SubscriptionStrategy {\n    if (ɵisPromise(obj)) {\n      return _promiseStrategy;\n    }\n\n    if (ɵisSubscribable(obj)) {\n      return _subscribableStrategy;\n    }\n\n    throw invalidPipeArgumentError(AsyncPipe, obj);\n  }\n\n  private _dispose(): void {\n    // Note: `dispose` is only called if a subscription has been initialized before, indicating\n    // that `this._strategy` is also available.\n    this._strategy!.dispose(this._subscription!);\n    this._latestValue = null;\n    this._subscription = null;\n    this._obj = null;\n  }\n\n  private _updateLatestValue(async: any, value: Object): void {\n    if (async === this._obj) {\n      this._latestValue = value;\n      if (this.markForCheckOnValueUpdate) {\n        this._ref?.markForCheck();\n      }\n    }\n  }\n}\n"]}