/**
 * @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 { Directive, Input, InjectionToken } from '@angular/core';
import { coerceBooleanProperty } from '@angular/cdk/coercion';
import * as i0 from "@angular/core";
/**
 * Injection token that can be used to reference instances of `CdkDropListGroup`. It serves as
 * alternative token to the actual `CdkDropListGroup` class which could cause unnecessary
 * retention of the class and its directive metadata.
 */
export const CDK_DROP_LIST_GROUP = new InjectionToken('CdkDropListGroup');
/**
 * Declaratively connects sibling `cdkDropList` instances together. All of the `cdkDropList`
 * elements that are placed inside a `cdkDropListGroup` will be connected to each other
 * automatically. Can be used as an alternative to the `cdkDropListConnectedTo` input
 * from `cdkDropList`.
 */
export class CdkDropListGroup {
    constructor() {
        /** Drop lists registered inside the group. */
        this._items = new Set();
        this._disabled = false;
    }
    /** Whether starting a dragging sequence from inside this group is disabled. */
    get disabled() {
        return this._disabled;
    }
    set disabled(value) {
        this._disabled = coerceBooleanProperty(value);
    }
    ngOnDestroy() {
        this._items.clear();
    }
    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.1.1", ngImport: i0, type: CdkDropListGroup, deps: [], target: i0.ɵɵFactoryTarget.Directive }); }
    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.1.1", type: CdkDropListGroup, isStandalone: true, selector: "[cdkDropListGroup]", inputs: { disabled: ["cdkDropListGroupDisabled", "disabled"] }, providers: [{ provide: CDK_DROP_LIST_GROUP, useExisting: CdkDropListGroup }], exportAs: ["cdkDropListGroup"], ngImport: i0 }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.1.1", ngImport: i0, type: CdkDropListGroup, decorators: [{
            type: Directive,
            args: [{
                    selector: '[cdkDropListGroup]',
                    exportAs: 'cdkDropListGroup',
                    standalone: true,
                    providers: [{ provide: CDK_DROP_LIST_GROUP, useExisting: CdkDropListGroup }],
                }]
        }], propDecorators: { disabled: [{
                type: Input,
                args: ['cdkDropListGroupDisabled']
            }] } });
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