/**
 * @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.
 */
export 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: "16.1.1", 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: "16.1.1", ngImport: i0, type: ScrollStrategyOptions, providedIn: 'root' }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.1.1", 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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