@progress/kendo-angular-treelist
Version:
Kendo UI TreeList for Angular - Display hierarchical data in an Angular tree grid view that supports sorting, filtering, paging, and much more.
91 lines (90 loc) • 4.56 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 { ChangeDetectorRef, Directive, ElementRef, Renderer2 } from '@angular/core';
import { CheckBoxComponent } from '@progress/kendo-angular-inputs';
import { SelectionService } from '../../selection/selection.service';
import { Subscription } from 'rxjs';
import { isPresent } from '@progress/kendo-angular-common';
import { ViewCollection } from '../../data/data.collection';
import * as i0 from "@angular/core";
import * as i1 from "@progress/kendo-angular-inputs";
import * as i2 from "../../selection/selection.service";
/**
* @hidden
*/
export class TreeListSelectAllCheckboxDirective {
host;
selectionService;
cdr;
sub = new Subscription();
setState = true;
constructor(host, hostEl, selectionService, cdr, renderer) {
this.host = host;
this.selectionService = selectionService;
this.cdr = cdr;
this.sub = selectionService.changes.subscribe(eventData => {
// omit setting the state when the selection change comes from clicking the checkbox, and clear the flag
if (!this.setState) {
this.setState = true;
return;
}
const view = eventData.sender.view;
let total;
ViewCollection.loadView({
fields: Object.assign({}, view.fieldAccessor(), {
hasFooter: false,
pageable: false,
isVirtual: false
}),
loaded: view.loaded,
selectionState: view.selectionState
}).subscribe(view => {
if (!view) {
return;
}
total = view.data.length;
});
const allSelected = total === selectionService.state.length;
const noneSelected = selectionService.state.length === 0;
const someSelected = !noneSelected && !allSelected;
if (allSelected && host.checkedState !== true) {
host.checkedState = true;
}
else if (someSelected && host.checkedState !== 'indeterminate') {
host.checkedState = 'indeterminate';
}
else if (noneSelected && host.checkedState !== false) {
host.checkedState = false;
}
cdr.detectChanges();
});
this.sub.add(selectionService.selectAllCheckedStateChange.subscribe((selectAllCheckedState) => {
host.checkedState = selectAllCheckedState;
cdr.detectChanges();
}));
// set flag for conditional checkbox state logic
['pointerdown', 'keydown'].forEach(eventName => this.sub.add(renderer.listen(hostEl.nativeElement, eventName, (e) => {
const isSpace = e.key && e.key === ' ';
const spaceOrPointer = !isPresent(e.key) || isSpace;
spaceOrPointer && (this.setState = false);
})));
}
ngAfterViewInit() {
this.host.checkedState = this.selectionService.selectAllCheckedState;
this.cdr.detectChanges();
}
ngOnDestroy() {
this.sub && this.sub.unsubscribe();
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.14", ngImport: i0, type: TreeListSelectAllCheckboxDirective, deps: [{ token: i1.CheckBoxComponent }, { token: i0.ElementRef }, { token: i2.SelectionService }, { token: i0.ChangeDetectorRef }, { token: i0.Renderer2 }], target: i0.ɵɵFactoryTarget.Directive });
static ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "18.2.14", type: TreeListSelectAllCheckboxDirective, isStandalone: true, selector: "[kendoTreeListSelectAllCheckbox]", ngImport: i0 });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.14", ngImport: i0, type: TreeListSelectAllCheckboxDirective, decorators: [{
type: Directive,
args: [{
selector: '[kendoTreeListSelectAllCheckbox]',
standalone: true
}]
}], ctorParameters: () => [{ type: i1.CheckBoxComponent }, { type: i0.ElementRef }, { type: i2.SelectionService }, { type: i0.ChangeDetectorRef }, { type: i0.Renderer2 }] });