@angular/cdk
Version:
Angular Material Component Development Kit
56 lines • 7.73 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 { ScrollDispatcher, ViewportRuler } from '@angular/cdk/scrolling';
import { DOCUMENT } from '@angular/common';
import { Inject, Injectable, NgZone } from '@angular/core';
import { BlockScrollStrategy } from './block-scroll-strategy';
import { CloseScrollStrategy } from './close-scroll-strategy';
import { NoopScrollStrategy } from './noop-scroll-strategy';
import { RepositionScrollStrategy, } from './reposition-scroll-strategy';
import * as i0 from "@angular/core";
import * as i1 from "@angular/cdk/scrolling";
/**
* Options for how an overlay will handle scrolling.
*
* Users can provide a custom value for `ScrollStrategyOptions` to replace the default
* behaviors. This class primarily acts as a factory for ScrollStrategy instances.
*/
class ScrollStrategyOptions {
constructor(_scrollDispatcher, _viewportRuler, _ngZone, document) {
this._scrollDispatcher = _scrollDispatcher;
this._viewportRuler = _viewportRuler;
this._ngZone = _ngZone;
/** Do nothing on scroll. */
this.noop = () => new NoopScrollStrategy();
/**
* Close the overlay as soon as the user scrolls.
* @param config Configuration to be used inside the scroll strategy.
*/
this.close = (config) => new CloseScrollStrategy(this._scrollDispatcher, this._ngZone, this._viewportRuler, config);
/** Block scrolling. */
this.block = () => new BlockScrollStrategy(this._viewportRuler, this._document);
/**
* Update the overlay's position on scroll.
* @param config Configuration to be used inside the scroll strategy.
* Allows debouncing the reposition calls.
*/
this.reposition = (config) => new RepositionScrollStrategy(this._scrollDispatcher, this._viewportRuler, this._ngZone, config);
this._document = document;
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.0.0", ngImport: i0, type: ScrollStrategyOptions, deps: [{ token: i1.ScrollDispatcher }, { token: i1.ViewportRuler }, { token: i0.NgZone }, { token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.0.0", ngImport: i0, type: ScrollStrategyOptions, providedIn: 'root' }); }
}
export { ScrollStrategyOptions };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.0.0", ngImport: i0, type: ScrollStrategyOptions, decorators: [{
type: Injectable,
args: [{ providedIn: 'root' }]
}], ctorParameters: function () { return [{ type: i1.ScrollDispatcher }, { type: i1.ViewportRuler }, { type: i0.NgZone }, { type: undefined, decorators: [{
type: Inject,
args: [DOCUMENT]
}] }]; } });
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