@progress/kendo-angular-treeview
Version:
Kendo UI TreeView for Angular
62 lines (61 loc) • 3.84 kB
JavaScript
/**-----------------------------------------------------------------------------------------
* Copyright © 2025 Progress Software Corporation. All rights reserved.
* Licensed under commercial license. See LICENSE.md in the project root for more information
*-------------------------------------------------------------------------------------------*/
import { Directive, Input } from '@angular/core';
import { Subscription } from 'rxjs';
import { TreeViewComponent } from '../treeview.component';
import { isPresent } from '../utils';
import * as i0 from "@angular/core";
import * as i1 from "../treeview.component";
/**
* A directive which enables the update of the initially provided data array during drag-and-drop.
*
* Either use this directive in combination with one of the data binding directives ([`kendoTreeViewHierarchyBinding`]({% slug api_treeview_hierarchybindingdirective %})
* or [`kendoTreeViewFlatDataBinding`]({% slug api_treeview_flatdatabindingdirective %})) which set their own edit handlers, or provide
* your own [`editService`]({% slug api_treeview_editservice %}) to this directive. The latter subscribes to and calls the
* [`addItem`]({% slug api_treeview_treeviewcomponent %}#toc-additem) and [`removeItem`]({% slug api_treeview_treeviewcomponent %}#toc-removeitem)
* handlers when the corresponding events are triggered by the TreeView component.
*/
export class DragAndDropEditingDirective {
treeview;
/**
* Specifies the handlers called on drag-and-drop [`addItem`]({% slug api_treeview_treeviewcomponent %}#toc-additem)
* and [`removeItem`]({% slug api_treeview_treeviewcomponent %}#toc-removeitem) events.
*/
set editService(service) {
this.treeview.editService = service;
}
subscriptions = new Subscription();
constructor(treeview) {
this.treeview = treeview;
this.subscriptions.add(this.treeview.addItem.subscribe(this.handleAdd.bind(this)));
this.subscriptions.add(this.treeview.removeItem.subscribe(this.handleRemove.bind(this)));
}
ngOnDestroy() {
this.subscriptions.unsubscribe();
}
handleAdd(args) {
if (!isPresent(this.treeview.editService)) {
throw new Error('No `editService` provided. Either provide your own implementation or use this directive in combination with one of the data binding directives (`kendoTreeViewHierarchyBinding` or `kendoTreeViewFlatDataBinding`).');
}
this.treeview.editService.add(args);
}
handleRemove(args) {
if (!isPresent(this.treeview.editService)) {
throw new Error('No `editService` provided. Either provide your own implementation or use this directive in combination with one of the data binding directives (`kendoTreeViewHierarchyBinding` or `kendoTreeViewFlatDataBinding`).');
}
this.treeview.editService.remove(args);
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: DragAndDropEditingDirective, deps: [{ token: i1.TreeViewComponent }], target: i0.ɵɵFactoryTarget.Directive });
static ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.2.12", type: DragAndDropEditingDirective, isStandalone: true, selector: "[kendoTreeViewDragAndDropEditing]", inputs: { editService: "editService" }, ngImport: i0 });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: DragAndDropEditingDirective, decorators: [{
type: Directive,
args: [{
selector: '[kendoTreeViewDragAndDropEditing]',
standalone: true
}]
}], ctorParameters: function () { return [{ type: i1.TreeViewComponent }]; }, propDecorators: { editService: [{
type: Input
}] } });