blob: fa25c3918affbb097d415efe3f3030e22ce130cc [file] [log] [blame]
/**
* @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 { NgZone } from '@angular/core';
import { ScrollStrategy } from './scroll-strategy';
import { OverlayReference } from '../overlay-reference';
import { ScrollDispatcher, ViewportRuler } from '@angular/cdk/scrolling';
/**
* Config options for the CloseScrollStrategy.
*/
export interface CloseScrollStrategyConfig {
/** Amount of pixels the user has to scroll before the overlay is closed. */
threshold?: number;
}
/**
* Strategy that will close the overlay as soon as the user starts scrolling.
*/
export declare class CloseScrollStrategy implements ScrollStrategy {
private _scrollDispatcher;
private _ngZone;
private _viewportRuler;
private _config?;
private _scrollSubscription;
private _overlayRef;
private _initialScrollPosition;
constructor(_scrollDispatcher: ScrollDispatcher, _ngZone: NgZone, _viewportRuler: ViewportRuler, _config?: CloseScrollStrategyConfig | undefined);
/** Attaches this scroll strategy to an overlay. */
attach(overlayRef: OverlayReference): void;
/** Enables the closing of the attached overlay on scroll. */
enable(): void;
/** Disables the closing the attached overlay on scroll. */
disable(): void;
detach(): void;
/** Detaches the overlay ref and disables the scroll strategy. */
private _detach;
}