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- import { ElementRef, OnDestroy } from '@angular/core';
- import { Observable } from 'rxjs';
- import * as i0 from "@angular/core";
- /**
- * Factory that creates a new ResizeObserver and allows us to stub it out in unit tests.
- */
- export declare class NzResizeObserverFactory {
- create(callback: ResizeObserverCallback): ResizeObserver | null;
- static ɵfac: i0.ɵɵFactoryDeclaration<NzResizeObserverFactory, never>;
- static ɵprov: i0.ɵɵInjectableDeclaration<NzResizeObserverFactory>;
- }
- /** An injectable service that allows watching elements for changes to their content. */
- export declare class NzResizeObserver implements OnDestroy {
- private nzResizeObserverFactory;
- /** Keeps track of the existing ResizeObservers so they can be reused. */
- private observedElements;
- constructor(nzResizeObserverFactory: NzResizeObserverFactory);
- ngOnDestroy(): void;
- observe(elementOrRef: Element | ElementRef<Element>): Observable<ResizeObserverEntry[]>;
- /**
- * Observes the given element by using the existing ResizeObserver if available, or creating a
- * new one if not.
- */
- private observeElement;
- /**
- * Un-observes the given element and cleans up the underlying ResizeObserver if nobody else is
- * observing this element.
- */
- private unobserveElement;
- /** Clean up the underlying ResizeObserver for the specified element. */
- private cleanupObserver;
- static ɵfac: i0.ɵɵFactoryDeclaration<NzResizeObserver, never>;
- static ɵprov: i0.ɵɵInjectableDeclaration<NzResizeObserver>;
- }
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