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- import { N as NumberInput } from '../number-property.d-CJVxXUcb.js';
- import * as i0 from '@angular/core';
- import { OnDestroy, ElementRef, AfterContentInit, EventEmitter } from '@angular/core';
- import { Observable } from 'rxjs';
- /**
- * Factory that creates a new MutationObserver and allows us to stub it out in unit tests.
- * @docs-private
- */
- declare class MutationObserverFactory {
- create(callback: MutationCallback): MutationObserver | null;
- static ɵfac: i0.ɵɵFactoryDeclaration<MutationObserverFactory, never>;
- static ɵprov: i0.ɵɵInjectableDeclaration<MutationObserverFactory>;
- }
- /** An injectable service that allows watching elements for changes to their content. */
- declare class ContentObserver implements OnDestroy {
- private _mutationObserverFactory;
- /** Keeps track of the existing MutationObservers so they can be reused. */
- private _observedElements;
- private _ngZone;
- constructor(...args: unknown[]);
- ngOnDestroy(): void;
- /**
- * Observe content changes on an element.
- * @param element The element to observe for content changes.
- */
- observe(element: Element): Observable<MutationRecord[]>;
- /**
- * Observe content changes on an element.
- * @param element The element to observe for content changes.
- */
- observe(element: ElementRef<Element>): Observable<MutationRecord[]>;
- /**
- * Observes the given element by using the existing MutationObserver if available, or creating a
- * new one if not.
- */
- private _observeElement;
- /**
- * Un-observes the given element and cleans up the underlying MutationObserver if nobody else is
- * observing this element.
- */
- private _unobserveElement;
- /** Clean up the underlying MutationObserver for the specified element. */
- private _cleanupObserver;
- static ɵfac: i0.ɵɵFactoryDeclaration<ContentObserver, never>;
- static ɵprov: i0.ɵɵInjectableDeclaration<ContentObserver>;
- }
- /**
- * Directive that triggers a callback whenever the content of
- * its associated element has changed.
- */
- declare class CdkObserveContent implements AfterContentInit, OnDestroy {
- private _contentObserver;
- private _elementRef;
- /** Event emitted for each change in the element's content. */
- readonly event: EventEmitter<MutationRecord[]>;
- /**
- * Whether observing content is disabled. This option can be used
- * to disconnect the underlying MutationObserver until it is needed.
- */
- get disabled(): boolean;
- set disabled(value: boolean);
- private _disabled;
- /** Debounce interval for emitting the changes. */
- get debounce(): number;
- set debounce(value: NumberInput);
- private _debounce;
- private _currentSubscription;
- constructor(...args: unknown[]);
- ngAfterContentInit(): void;
- ngOnDestroy(): void;
- private _subscribe;
- private _unsubscribe;
- static ɵfac: i0.ɵɵFactoryDeclaration<CdkObserveContent, never>;
- static ɵdir: i0.ɵɵDirectiveDeclaration<CdkObserveContent, "[cdkObserveContent]", ["cdkObserveContent"], { "disabled": { "alias": "cdkObserveContentDisabled"; "required": false; }; "debounce": { "alias": "debounce"; "required": false; }; }, { "event": "cdkObserveContent"; }, never, never, true, never>;
- static ngAcceptInputType_disabled: unknown;
- }
- declare class ObserversModule {
- static ɵfac: i0.ɵɵFactoryDeclaration<ObserversModule, never>;
- static ɵmod: i0.ɵɵNgModuleDeclaration<ObserversModule, never, [typeof CdkObserveContent], [typeof CdkObserveContent]>;
- static ɵinj: i0.ɵɵInjectorDeclaration<ObserversModule>;
- }
- export { CdkObserveContent, ContentObserver, MutationObserverFactory, ObserversModule };
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