@progress/kendo-angular-grid
Version:
Kendo UI Grid for Angular - high performance data grid with paging, filtering, virtualization, CRUD, and more.
74 lines (73 loc) • 2.67 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 { Injectable } from '@angular/core';
import { FocusRoot } from './focus-root';
import * as i0 from "@angular/core";
import * as i1 from "./focus-root";
/**
* @hidden
*/
export class FocusGroup {
root;
active = true;
children = [];
get focusableChildren() {
return this.children.filter(el => el.canFocus());
}
get isActive() {
return this.active;
}
constructor(root) {
this.root = root;
this.root.registerGroup(this);
}
ngOnDestroy() {
this.root.unregisterGroup(this);
this.active = true;
}
registerElement(element) {
this.unregisterElement(element);
this.children.push(element);
}
unregisterElement(element) {
this.children = this.children.filter(f => f !== element);
}
/**
* Returns a Boolean value which indicates if the group will receive focus when the cell is focused.
* Requires a single "simple" focusable element such as a button or a checkbox.
*/
isNavigable() {
const focusable = this.focusableChildren;
return focusable.length === 1 && focusable[0].isNavigable();
}
canFocus() {
return this.focusableChildren.length > 0;
}
focus() {
if (this.canFocus() && !this.hasFocus()) {
this.focusableChildren[0].focus();
}
}
activate() {
this.toggleState(true);
}
deactivate() {
this.toggleState(false);
}
hasFocus() {
return this.children.reduce((focused, element) => focused || element.hasFocus(), false);
}
toggleState(active) {
if (this.active !== active) {
this.active = active;
this.children.forEach(f => f.toggle(active));
}
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: FocusGroup, deps: [{ token: i1.FocusRoot }], target: i0.ɵɵFactoryTarget.Injectable });
static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: FocusGroup });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: FocusGroup, decorators: [{
type: Injectable
}], ctorParameters: function () { return [{ type: i1.FocusRoot }]; } });