/*!
 * @license
 * Copyright © 2005-2025 Hyland Software, Inc. and its affiliates. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { EventEmitter, OnDestroy, OnInit, QueryList, TemplateRef } from '@angular/core';
import { Observable } from 'rxjs';
import { TreeNode } from '../models/tree-node.interface';
import { TreeService } from '../services/tree.service';
import { PaginationModel, UserPreferencesService } from '@alfresco/adf-core';
import { SelectionModel } from '@angular/cdk/collections';
import { MatCheckbox } from '@angular/material/checkbox';
import { TreeContextMenuResult } from '../models/tree-context-menu-result.interface';
import * as i0 from "@angular/core";
export declare class TreeComponent<T extends TreeNode> implements OnInit, OnDestroy {
    treeService: TreeService<T>;
    private userPreferenceService;
    /** TemplateRef to provide empty template when no nodes are loaded */
    emptyContentTemplate: TemplateRef<any>;
    /** TemplateRef to provide context menu items for context menu displayed on each row*/
    nodeActionsMenuTemplate: TemplateRef<any>;
    /** Variable defining if tree header should be sticky. By default set to false */
    stickyHeader: boolean;
    /** Variable defining if tree nodes should be selectable. By default set to false */
    selectableNodes: boolean;
    /** Tree display name */
    displayName: string;
    /** Load more suffix for load more button */
    loadMoreSuffix: string;
    /** Icon shown when node has children and is collapsed. By default set to chevron_right */
    expandIcon: string;
    /** Icon shown when node is expanded. By default set to expand_more */
    collapseIcon: string;
    /** Emitted when pagination has been changed */
    paginationChanged: EventEmitter<PaginationModel>;
    /** Emitted when any context menu option is selected */
    contextMenuOptionSelected: EventEmitter<TreeContextMenuResult<T>>;
    nodeCheckboxes: QueryList<MatCheckbox>;
    private loadingRootSource;
    private _contextMenuSource;
    private _contextMenuOptions;
    private contextMenuOptionsChanged$;
    loadingRoot$: Observable<boolean>;
    treeNodesSelection: SelectionModel<T>;
    constructor(treeService: TreeService<T>, userPreferenceService: UserPreferencesService);
    set contextMenuSource(contextMenuSource: T);
    /** Array of context menu options which should be displayed for each row. */
    set contextMenuOptions(contextMenuOptions: any[]);
    get contextMenuOptions(): any[];
    ngOnInit(): void;
    ngOnDestroy(): void;
    /**
     * Checks if node is LoadMoreNode node
     *
     * @param _idx (unused)
     * @param node node to be checked
     * @returns `true` if there are more items to load, otherwise `false`
     */
    isLoadMoreNode(_idx: number, node: T): boolean;
    /**
     * Checks if tree is empty
     *
     * @returns boolean
     */
    isEmpty(): boolean;
    /**
     * Returns action icon based on expanded/collapsed node state.
     *
     * @param node node to be checked
     * @returns collapse or expand icon
     */
    expandCollapseIconValue(node: T): string;
    /**
     * Refreshes the tree, root nodes are reloaded, tree selection is cleared.
     *
     * @param skipCount Number of root nodes to skip.
     * @param maxItems Maximum number of nodes returned from Observable.
     * @param searchTerm Specifies if categories should be filtered out by name or not. If not specified then returns categories without filtering.
     */
    refreshTree(skipCount?: number, maxItems?: number, searchTerm?: string): void;
    /**
     * Collapses or expanding the node based on its current state
     *
     * @param node node to be collapsed/expanded
     */
    expandCollapseNode(node: T): void;
    /**
     * Loads more subnode for a given parent node
     *
     * @param node parent node
     */
    loadMoreSubnodes(node: T): void;
    /**
     * When node is selected it selects all its descendants
     *
     * @param node selected node
     */
    onNodeSelected(node: T): void;
    /**
     * Checks if all descendants of a node are selected
     *
     * @param node selected node
     * @returns boolean
     */
    descendantsAllSelected(node: T): boolean;
    /**
     * Checks if some descendants of a node are selected
     *
     * @param node selected node
     * @returns boolean
     */
    descendantsPartiallySelected(node: T): boolean;
    private checkParentsSelection;
    private checkRootNodeSelection;
    private onTreeSelectionChange;
    private isRegularNode;
    static ɵfac: i0.ɵɵFactoryDeclaration<TreeComponent<any>, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<TreeComponent<any>, "adf-tree", never, { "emptyContentTemplate": { "alias": "emptyContentTemplate"; "required": false; }; "nodeActionsMenuTemplate": { "alias": "nodeActionsMenuTemplate"; "required": false; }; "stickyHeader": { "alias": "stickyHeader"; "required": false; }; "selectableNodes": { "alias": "selectableNodes"; "required": false; }; "displayName": { "alias": "displayName"; "required": false; }; "loadMoreSuffix": { "alias": "loadMoreSuffix"; "required": false; }; "expandIcon": { "alias": "expandIcon"; "required": false; }; "collapseIcon": { "alias": "collapseIcon"; "required": false; }; "contextMenuOptions": { "alias": "contextMenuOptions"; "required": false; }; }, { "paginationChanged": "paginationChanged"; "contextMenuOptionSelected": "contextMenuOptionSelected"; }, never, never, true, never>;
}