/**-----------------------------------------------------------------------------------------
* Copyright © 2026 Progress Software Corporation. All rights reserved.
* Licensed under commercial license. See LICENSE.md in the project root for more information
*-------------------------------------------------------------------------------------------*/
import { EventEmitter, OnDestroy, OnChanges, SimpleChanges } from '@angular/core';
import { TreeViewComponent } from '@progress/kendo-angular-treeview';
import { CheckedItem } from './checked-item';
import { MultiSelectTreeCheckableSettings } from './checkable-settings';
import { BaseCheckDirective } from './base-check.directive';
import * as i0 from "@angular/core";
/**
 * @hidden
 *
 * A directive which manages the in-memory checked state of the MultiSelectTree nodes.
 */
export declare class CheckDirective extends BaseCheckDirective implements OnChanges, OnDestroy {
    private treeView;
    /**
     * Specifies whether items are checked on click and if checking a node also checks its children.
     * The `checkChildren` property also controls parent item checking (checking all child items automatically checks the parent).
     */
    checkable: MultiSelectTreeCheckableSettings;
    /**
     * Sets the item key or keys to compare data items.
     */
    valueField: string | string[];
    /**
     * Sets the collection that stores all checked items.
     */
    checkedItems: CheckedItem[];
    /**
     * Fires when the `checkedItems` collection updates.
     */
    checkedItemsChange: EventEmitter<CheckedItem[]>;
    /**
     * Holds a `Set` with only the checked item keys. Updates this set each time the `checkedItems` value or content changes and uses it for fast look-up to check if an item is checked.
     */
    checkedKeys: Set<any>;
    private subscriptions;
    private clickSubscription;
    constructor(treeView: TreeViewComponent);
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    private getCheckedState;
    private handleCheckedChange;
    private toggleCheckOnClick;
    private unsubscribeClick;
    private checkNode;
    private checkParents;
    private isItemIndeterminate;
    static ɵfac: i0.ɵɵFactoryDeclaration<CheckDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<CheckDirective, "[kendoMultiSelectTreeCheckable]", never, { "checkable": { "alias": "checkable"; "required": false; }; "valueField": { "alias": "valueField"; "required": false; }; "checkedItems": { "alias": "checkedItems"; "required": false; }; }, { "checkedItemsChange": "checkedItemsChange"; }, never, never, true, never>;
}