@angular/cdk
Version:
Angular Material Component Development Kit
46 lines • 5.39 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, HostListener, Input } from '@angular/core';
import { CdkTree, CdkTreeNode } from './tree';
/**
* Node toggle to expand/collapse the node.
*/
export class CdkTreeNodeToggle {
constructor(_tree, _treeNode) {
this._tree = _tree;
this._treeNode = _treeNode;
this._recursive = false;
}
/** Whether expand/collapse the node recursively. */
get recursive() { return this._recursive; }
set recursive(value) { this._recursive = coerceBooleanProperty(value); }
// We have to use a `HostListener` here in order to support both Ivy and ViewEngine.
// In Ivy the `host` bindings will be merged when this class is extended, whereas in
// ViewEngine they're overwritten.
// TODO(crisbeto): we move this back into `host` once Ivy is turned on by default.
// tslint:disable-next-line:no-host-decorator-in-concrete
_toggle(event) {
this.recursive
? this._tree.treeControl.toggleDescendants(this._treeNode.data)
: this._tree.treeControl.toggle(this._treeNode.data);
event.stopPropagation();
}
}
CdkTreeNodeToggle.decorators = [
{ type: Directive, args: [{ selector: '[cdkTreeNodeToggle]' },] }
];
CdkTreeNodeToggle.ctorParameters = () => [
{ type: CdkTree },
{ type: CdkTreeNode }
];
CdkTreeNodeToggle.propDecorators = {
recursive: [{ type: Input, args: ['cdkTreeNodeToggleRecursive',] }],
_toggle: [{ type: HostListener, args: ['click', ['$event'],] }]
};
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