import { AnimationEvent } from '@angular/animations';
import { UniqueSelectionDispatcher } from '@angular/cdk/collections';
import { TemplatePortal } from '@angular/cdk/portal';
import { AfterContentInit, ChangeDetectorRef, ElementRef, EventEmitter, OnChanges, OnDestroy, OnInit, SimpleChanges, ViewContainerRef } from '@angular/core';
import { SafeAny } from '@ngx-simple/core/types';
import { Subject } from 'rxjs';
import { SimExpansionPanelDefaultOptions } from './default-options';
import { SimExpansionBase } from './expansion-base';
import { SimExpansionPanelContentDirective } from './expansion.directive';
import { SimExpansionPanelState, SimExpansionTogglePosition } from './expansion.typings';
export declare class SimExpansionPanelComponent implements OnChanges, OnInit, AfterContentInit, OnDestroy {
    expansion: SimExpansionBase;
    private _changeDetectorRef;
    protected _expansionDispatcher: UniqueSelectionDispatcher;
    private _viewContainerRef;
    /** ExpansionPanel是否已展开 */
    get expanded(): boolean;
    set expanded(expanded: boolean);
    /** 是否应同时允许展开多个ExpansionPanel */
    disabled: boolean;
    /** 是否隐藏切换指示箭头 */
    hideToggle: boolean;
    /** 指示箭头显示位置 */
    togglePosition: SimExpansionTogglePosition;
    /** 每次打开ExpansionPanel时发出的事件 */
    readonly opened: EventEmitter<void>;
    /** 每次关闭ExpansionPanel时发出的事件 */
    readonly closed: EventEmitter<void>;
    /**
     * 每当ExpansionPanel的expanded状态更改时发出。
     * 主要用于方便双向绑定。
     */
    readonly expandedChange: EventEmitter<boolean>;
    /** 在body展开动画发生后发出的事件 */
    readonly afterExpand: EventEmitter<void>;
    /** 在body折叠动画发生后发出的事件 */
    readonly afterCollapse: EventEmitter<void>;
    _lazyContent: SimExpansionPanelContentDirective;
    /** 包含面板用户提供内容的元素 */
    _body: ElementRef<HTMLDivElement>;
    readonly id: string;
    /** 关联标题元素的ID。用于a11y标签 */
    readonly _headerId: string;
    /** 为`@Input`属性中的更改而发出的流 */
    readonly _inputChanges: Subject<SimpleChanges>;
    /** 保存用户内容的门户 */
    portal: TemplatePortal;
    get _hasSpacing(): boolean;
    /** body动画完成事件流 */
    _bodyAnimationDone: Subject<AnimationEvent>;
    private _expanded;
    private _document;
    /** 订阅`openAll/closeAll`事件 */
    private _openCloseAllSubscription;
    /** 取消注册_expansionDispatcher的方法 */
    private _removeUniqueSelectionListener;
    constructor(expansion: SimExpansionBase, _changeDetectorRef: ChangeDetectorRef, _expansionDispatcher: UniqueSelectionDispatcher, _viewContainerRef: ViewContainerRef, _elementRef: ElementRef, _document: SafeAny, defaultOptions?: SimExpansionPanelDefaultOptions);
    ngOnChanges(changes: SimpleChanges): void;
    ngOnInit(): void;
    ngAfterContentInit(): void;
    ngOnDestroy(): void;
    /** 获取展开的状态字符串 */
    _getExpandedState(): SimExpansionPanelState;
    /** 切换ExpansionPanel的`expanded`状态 */
    toggle(): void;
    /** 将ExpansionPanel的`expanded`状态设置为false */
    close(): void;
    /** 将ExpansionPanel的`expanded`状态设置为true */
    open(): void;
    containsFocus(): boolean;
    private _subscribeToOpenCloseAllActions;
}