@angular/cdk
Version:
Angular Material Component Development Kit
47 lines • 5.37 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 { Directive, Input, InjectionToken } from '@angular/core';
import { coerceBooleanProperty } from '@angular/cdk/coercion';
/**
* 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();
}
}
CdkDropListGroup.decorators = [
{ type: Directive, args: [{
selector: '[cdkDropListGroup]',
exportAs: 'cdkDropListGroup',
providers: [{ provide: CDK_DROP_LIST_GROUP, useExisting: CdkDropListGroup }],
},] }
];
CdkDropListGroup.propDecorators = {
disabled: [{ type: Input, args: ['cdkDropListGroupDisabled',] }]
};
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