@angular/cdk
Version:
Angular Material Component Development Kit
53 lines • 6.27 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 { coerceBooleanProperty } from '@angular/cdk/coercion';
import { Directive, ElementRef, Inject, InjectionToken, Input, Optional, SkipSelf, } from '@angular/core';
import { Subject } from 'rxjs';
import { CDK_DRAG_PARENT } from '../drag-parent';
/**
* Injection token that can be used to reference instances of `CdkDragHandle`. It serves as
* alternative token to the actual `CdkDragHandle` class which could cause unnecessary
* retention of the class and its directive metadata.
*/
export const CDK_DRAG_HANDLE = new InjectionToken('CdkDragHandle');
/** Handle that can be used to drag a CdkDrag instance. */
export class CdkDragHandle {
constructor(element, parentDrag) {
this.element = element;
/** Emits when the state of the handle has changed. */
this._stateChanges = new Subject();
this._disabled = false;
this._parentDrag = parentDrag;
}
/** Whether starting to drag through this handle is disabled. */
get disabled() { return this._disabled; }
set disabled(value) {
this._disabled = coerceBooleanProperty(value);
this._stateChanges.next(this);
}
ngOnDestroy() {
this._stateChanges.complete();
}
}
CdkDragHandle.decorators = [
{ type: Directive, args: [{
selector: '[cdkDragHandle]',
host: {
'class': 'cdk-drag-handle'
},
providers: [{ provide: CDK_DRAG_HANDLE, useExisting: CdkDragHandle }],
},] }
];
CdkDragHandle.ctorParameters = () => [
{ type: ElementRef },
{ type: undefined, decorators: [{ type: Inject, args: [CDK_DRAG_PARENT,] }, { type: Optional }, { type: SkipSelf }] }
];
CdkDragHandle.propDecorators = {
disabled: [{ type: Input, args: ['cdkDragHandleDisabled',] }]
};
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