import { AnimationEvent } from '@angular/animations';
import { CdkAccordionItem } from '@angular/cdk/accordion';
import { UniqueSelectionDispatcher } from '@angular/cdk/collections';
import { TemplatePortal } from '@angular/cdk/portal';
import { AfterContentInit, ChangeDetectorRef, ElementRef, EventEmitter, InjectionToken, OnChanges, OnDestroy, SimpleChanges, ViewContainerRef } from '@angular/core';
import { TsDocumentService } from '@terminus/ngx-tools/browser';
import { Subject } from 'rxjs';
import { TsAccordionBase } from './accordion/accordion-base';
import { TsExpansionPanelContentDirective } from './expansion-panel-content.directive';
/**
 * The possible states for a {@link TsExpansionPanelComponent}
 */
export declare type TsExpansionPanelState = 'expanded' | 'collapsed';
/**
 * Object that can be used to override the default options for all of the expansion panels in a module.
 */
export interface TsExpansionPanelDefaultOptions {
    /**
     * Height of the trigger while the panel is expanded
     */
    expandedHeight: string;
    /**
     * Height of the trigger while the panel is collapsed
     */
    collapsedHeight: string;
    /**
     * Whether the toggle indicator should be hidden
     */
    hideToggle: boolean;
}
/**
 * Injection token that can be used to configure the defalt options for the expansion panel component.
 */
export declare const TS_EXPANSION_PANEL_DEFAULT_OPTIONS: InjectionToken<TsExpansionPanelDefaultOptions>;
/**
 * An expansion panel component to show/hide content
 *
 * @example
 * <ts-expansion-panel
 *               [hideToggle]="true"
 *               [isExpanded]="true"
 *               [isDisabled]="true"
 *               [transparentMode]="false"
 *               (opened)="panelOpened()"
 *               (closed)="panelClosed()"
 *               (expandedChange)="panelStateChanged($event)"
 *               (destroyed)="componentDestroyed()"
 *               (afterCollapse)="collapseAnimationDone"
 *               (afterExpand)="expandAnimationDone()"
 * >
 *               <ts-expansion-panel-trigger>
 *                 Panel trigger
 *               </ts-expansion-panel-trigger>
 *
 *               Panel content
 * </ts-expansion-panel>
 *
 * <example-url>https://getterminus.github.io/ui-demos-release/components/expansion-panel</example-url>
 */
export declare class TsExpansionPanelComponent extends CdkAccordionItem implements AfterContentInit, OnChanges, OnDestroy {
    protected _uniqueSelectionDispatcher: UniqueSelectionDispatcher;
    private _viewContainerRef;
    private documentService;
    animationMode?: string | undefined;
    /**
     * Stream of body animation done events
     */
    bodyAnimationDone: Subject<AnimationEvent>;
    /**
     * The ID for the associated trigger element. Used for a11y labelling.
     */
    triggerId: string;
    /**
     * Portal holding the user's content
     */
    portal: TemplatePortal | undefined;
    /**
     * Stream that emits for changes in `@Input` properties
     */
    readonly inputChanges: Subject<SimpleChanges>;
    /**
     * Optionally defined accordion the expansion panel belongs to
     *
     * NOTE: This should be `TsAccordionBase | undefined` but the underlying class doesn't define it as possibly undefined so we cannot
     * do so here.
     */
    accordion: TsAccordionBase;
    /**
     * Get the current expanded state
     */
    get currentExpandedState(): TsExpansionPanelState;
    /**
     * Determine whether the expansion panel's content contains the currently-focused element
     */
    get contentContainsFocus(): boolean;
    /**
     * Reference to a passed in template (for lazy loading)
     */
    lazyContent: TsExpansionPanelContentDirective;
    /**
     * The element containing the panel's user-provided content
     */
    panelBody: ElementRef<HTMLElement>;
    /**
     * Determine if the toggle indicator should be hidden
     *
     * @param value
     */
    set hideToggle(value: boolean);
    get hideToggle(): boolean;
    private _hideToggle;
    /**
     * Define if the panel should be disabled
     *
     * NOTE: CdkAccordionItem defines an input called `disabled`.
     * This alias is to conform to our existing naming convention.
     *
     * @param value
     */
    set isDisabled(value: boolean);
    get isDisabled(): boolean;
    /**
     * Define if the panel should be open
     *
     * NOTE: CdkAccordionItem defines an input called `expanded`.
     * This alias is to conform to our existing naming convention.
     *
     * @param value
     */
    set isExpanded(value: boolean);
    get isExpanded(): boolean;
    /**
     * Support for transparent mode. Default set to false
     *
     * @param value
     */
    set transparentMode(value: boolean);
    get transparentMode(): boolean;
    private _transparentMode;
    /**
     * The event emitted after the panel body's expansion animation finishes
     */
    readonly afterExpand: EventEmitter<void>;
    /**
     * The event emitted after the panel body's collapse animation finishes
     */
    readonly afterCollapse: EventEmitter<void>;
    constructor(_changeDetectorRef: ChangeDetectorRef, _uniqueSelectionDispatcher: UniqueSelectionDispatcher, _viewContainerRef: ViewContainerRef, documentService: TsDocumentService, accordion: TsAccordionBase, animationMode?: string | undefined, defaultOptions?: TsExpansionPanelDefaultOptions);
    /**
     * If a lazy-loaded template exists, inject it after the panel is opened
     */
    ngAfterContentInit(): void;
    /**
     * Send any input changes through the Subject stream
     *
     * @param changes
     */
    ngOnChanges(changes: SimpleChanges): void;
    /**
     * Destroy the parent and finalize any subscriptions
     */
    ngOnDestroy(): void;
}