import { NestedTreeControl } from '@angular/cdk/tree';
import { EventEmitter, OnChanges, OnInit, SimpleChanges } from '@angular/core';
import { MatTreeNestedDataSource } from '@angular/material';
import { I18N } from 'ess-plugin-base';
import { DataItem } from '../model/data.item';
/**
 * Animated tree view with search box on top to filter and highlight items.
 */
export declare class SearchableTree implements OnInit, OnChanges {
    i18n: I18N;
    /**
     * The tree nodes to display.
     */
    data: DataItem[];
    selected: DataItem;
    /**
     * Event fired when an item is selected.
     */
    onSelect: EventEmitter<DataItem>;
    treeControl: NestedTreeControl<DataItem>;
    dataSource: MatTreeNestedDataSource<DataItem>;
    phrase: string;
    /**
     * Name of a function to call when search is performed.
     * <br>
     * Useful to override default searching and fetch items from  a web service for example.
     */
    search_matcher: (string: string, item: DataItem) => boolean;
    constructor(i18n: I18N);
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    hasChild: (_: number, node: any) => boolean;
    openMenuItem(node: DataItem): void;
    doSearch(): void;
    private matchNodes;
}