import { AfterContentInit, ChangeDetectorRef, OnChanges, OnInit, QueryList, SimpleChanges } from '@angular/core';
import { MatIcon } from '@angular/material/icon';
import { Subject } from 'rxjs';
import { Destroyable } from '../../../common/destroyable';
import { SidebarItemToken } from '../sidebar-item/sidebar-item.component';
export declare abstract class SidebarGroupToken extends Destroyable {
    groupClicked: Subject<number>;
    id: number;
    protected abstract _isSidebarCollapsed: boolean;
    protected abstract _isExpanded: boolean;
    protected abstract _order: number;
    get isExpanded(): boolean;
    set isExpanded(value: boolean);
    abstract get isSidebarCollapsed(): boolean;
    abstract set isSidebarCollapsed(value: boolean);
    abstract get order(): number;
    abstract set order(value: number);
    protected constructor();
}
export declare class SidebarGroupComponent extends SidebarGroupToken implements OnInit, OnChanges, AfterContentInit {
    private _change;
    icon: QueryList<MatIcon>;
    items: QueryList<SidebarItemToken>;
    groupClicked: Subject<number>;
    tooltipText: string;
    private _hasIcon;
    protected _isExpanded: boolean;
    protected _isSidebarCollapsed: boolean;
    protected _alwaysOpen: boolean;
    protected _order: number;
    constructor(_change: ChangeDetectorRef);
    ngOnInit(): void;
    ngAfterContentInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    expand(): void;
    get isExpanded(): boolean;
    set isExpanded(value: boolean);
    get alwaysOpen(): boolean;
    set alwaysOpen(value: boolean);
    get hasIcon(): boolean;
    set hasIcon(value: boolean);
    get isSidebarCollapsed(): boolean;
    set isSidebarCollapsed(value: boolean);
    get order(): number;
    set order(value: number);
}