/**
* @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
*/
import { View } from "../view.js";
import { ButtonView } from "../button/buttonview.js";
import { type ViewCollection } from "../viewcollection.js";
import type { FocusableView } from "../focuscycler.js";
import type { Locale } from "@ckeditor/ckeditor5-utils";
import "../../theme/components/collapsible/collapsible.css";
/**
* A collapsible UI component. Consists of a labeled button and a container which can be collapsed
* by clicking the button. The collapsible container can be a host to other UI views.
*
* @internal
*/
export declare class CollapsibleView extends View {
	/**
	* `true` when the container with {@link #children} is collapsed. `false` otherwise.
	*
	* @observable
	*/
	isCollapsed: boolean;
	/**
	* The text label of the {@link #buttonView}.
	*
	* @observable
	* @default 'Show more'
	*/
	label: string;
	/**
	* The ID of the label inside the {@link #buttonView} that describes the collapsible
	* container for assistive technologies. Set after the button was {@link #render rendered}.
	*
	* @internal
	* @readonly
	* @observable
	*/
	_collapsibleAriaLabelUid: string | undefined;
	/**
	* The main button that, when clicked, collapses or expands the container with {@link #children}.
	*/
	readonly buttonView: ButtonView;
	/**
	* A collection of the child views that can be collapsed by clicking the {@link #buttonView}.
	*/
	readonly children: ViewCollection<FocusableView>;
	/**
	* Creates an instance of the collapsible view.
	*
	* @param locale The {@link module:core/editor/editor~Editor#locale} instance.
	* @param childViews An optional array of initial child views to be inserted into the collapsible.
	*/
	constructor(locale: Locale, childViews?: Array<FocusableView>);
	/**
	* @inheritDoc
	*/
	override render(): void;
	/**
	* Focuses the first focusable.
	*/
	focus(): void;
	/**
	* Creates the main {@link #buttonView} of the collapsible.
	*/
	private _createButtonView;
}