/**
 * @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 { Injectable, Inject, NgZone } from '@angular/core';
import { DOCUMENT } from '@angular/common';
import { ViewportRuler } from '@angular/cdk/scrolling';
import { DragRef } from './drag-ref';
import { DropListRef } from './drop-list-ref';
import { DragDropRegistry } from './drag-drop-registry';
import * as i0 from "@angular/core";
import * as i1 from "@angular/cdk/scrolling";
import * as i2 from "./drag-drop-registry";
/** Default configuration to be used when creating a `DragRef`. */
const DEFAULT_CONFIG = {
    dragStartThreshold: 5,
    pointerDirectionChangeThreshold: 5,
};
/**
 * Service that allows for drag-and-drop functionality to be attached to DOM elements.
 */
export class DragDrop {
    constructor(_document, _ngZone, _viewportRuler, _dragDropRegistry) {
        this._document = _document;
        this._ngZone = _ngZone;
        this._viewportRuler = _viewportRuler;
        this._dragDropRegistry = _dragDropRegistry;
    }
    /**
     * Turns an element into a draggable item.
     * @param element Element to which to attach the dragging functionality.
     * @param config Object used to configure the dragging behavior.
     */
    createDrag(element, config = DEFAULT_CONFIG) {
        return new DragRef(element, config, this._document, this._ngZone, this._viewportRuler, this._dragDropRegistry);
    }
    /**
     * Turns an element into a drop list.
     * @param element Element to which to attach the drop list functionality.
     */
    createDropList(element) {
        return new DropListRef(element, this._dragDropRegistry, this._document, this._ngZone, this._viewportRuler);
    }
    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.1.1", ngImport: i0, type: DragDrop, deps: [{ token: DOCUMENT }, { token: i0.NgZone }, { token: i1.ViewportRuler }, { token: i2.DragDropRegistry }], target: i0.ɵɵFactoryTarget.Injectable }); }
    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.1.1", ngImport: i0, type: DragDrop, providedIn: 'root' }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.1.1", ngImport: i0, type: DragDrop, decorators: [{
            type: Injectable,
            args: [{ providedIn: 'root' }]
        }], ctorParameters: function () { return [{ type: undefined, decorators: [{
                    type: Inject,
                    args: [DOCUMENT]
                }] }, { type: i0.NgZone }, { type: i1.ViewportRuler }, { type: i2.DragDropRegistry }]; } });
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