/**
* @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
*/
/**
* @module editor-multi-root/multirooteditorui
*/
import { type Editor } from "@ckeditor/ckeditor5-core";
import { EditorUI, type InlineEditableUIView } from "@ckeditor/ckeditor5-ui";
import { type MultiRootEditorUIView } from "./multirooteditoruiview.js";
/**
* The multi-root editor UI class.
*/
export declare class MultiRootEditorUI extends EditorUI {
	/**
	* The main (top–most) view of the editor UI.
	*/
	readonly view: MultiRootEditorUIView;
	/**
	* The editable element that was focused the last time when any of the editables had focus.
	*/
	private _lastFocusedEditableElement;
	/**
	* Creates an instance of the multi-root editor UI class.
	*
	* @param editor The editor instance.
	* @param view The view of the UI.
	*/
	constructor(editor: Editor, view: MultiRootEditorUIView);
	/**
	* Initializes the UI.
	*/
	init(): void;
	/**
	* Adds the editable to the editor UI.
	*
	* After the editable is added to the editor UI it can be considered "active".
	*
	* The editable is attached to the editor editing pipeline, which means that it will be updated as the editor model updates and
	* changing its content will be reflected in the editor model. Keystrokes, focus handling and placeholder are initialized.
	*
	* @param editable The editable instance to add.
	* @param placeholder Placeholder for the editable element. If not set, placeholder value from the
	* {@link module:core/editor/editorconfig~EditorConfig#placeholder editor configuration} will be used (if it was provided).
	*/
	addEditable(editable: InlineEditableUIView, placeholder?: string): void;
	/**
	* Removes the editable instance from the editor UI.
	*
	* Removed editable can be considered "deactivated".
	*
	* The editable is detached from the editing pipeline, so model changes are no longer reflected in it. All handling added in
	* {@link #addEditable} is removed.
	*
	* @param editable Editable to remove from the editor UI.
	*/
	removeEditable(editable: InlineEditableUIView): void;
	/**
	* @inheritDoc
	*/
	override destroy(): void;
	/**
	* Initializes the editor main toolbar and its panel.
	*/
	private _initToolbar;
	/**
	* Enables the placeholder text on a given editable.
	*
	* @param editable Editable on which the placeholder should be set.
	* @param placeholder Placeholder for the editable element. If not set, placeholder value from the
	* {@link module:core/editor/editorconfig~EditorConfig#placeholder editor configuration} will be used (if it was provided).
	*/
	private _initPlaceholder;
}