| /** |
| * @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, InjectionToken, Input, TemplateRef } from '@angular/core'; |
| /** |
| * Injection token that can be used to reference instances of `CdkDragPreview`. It serves as |
| * alternative token to the actual `CdkDragPreview` class which could cause unnecessary |
| * retention of the class and its directive metadata. |
| */ |
| export const CDK_DRAG_PREVIEW = new InjectionToken('CdkDragPreview'); |
| /** |
| * Element that will be used as a template for the preview |
| * of a CdkDrag when it is being dragged. |
| */ |
| export class CdkDragPreview { |
| constructor(templateRef) { |
| this.templateRef = templateRef; |
| this._matchSize = false; |
| } |
| /** Whether the preview should preserve the same size as the item that is being dragged. */ |
| get matchSize() { return this._matchSize; } |
| set matchSize(value) { this._matchSize = coerceBooleanProperty(value); } |
| } |
| CdkDragPreview.decorators = [ |
| { type: Directive, args: [{ |
| selector: 'ng-template[cdkDragPreview]', |
| providers: [{ provide: CDK_DRAG_PREVIEW, useExisting: CdkDragPreview }], |
| },] } |
| ]; |
| CdkDragPreview.ctorParameters = () => [ |
| { type: TemplateRef } |
| ]; |
| CdkDragPreview.propDecorators = { |
| data: [{ type: Input }], |
| matchSize: [{ type: Input }] |
| }; |
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