/**
* @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 table/commands/mergecellcommand
*/
import type { ModelNode } from "@ckeditor/ckeditor5-engine";
import { Command, type Editor } from "@ckeditor/ckeditor5-core";
import type { ArrowKeyCodeDirection } from "@ckeditor/ckeditor5-utils";
/**
* The merge cell command.
*
* The command is registered by {@link module:table/tableediting~TableEditing} as the `'mergeTableCellRight'`, `'mergeTableCellLeft'`,
* `'mergeTableCellUp'` and `'mergeTableCellDown'` editor commands.
*
* To merge a table cell at the current selection with another cell, execute the command corresponding with the preferred direction.
*
* For example, to merge with a cell to the right:
*
* ```ts
* editor.execute( 'mergeTableCellRight' );
* ```
*
* **Note**: If a table cell has a different [`rowspan`](https://www.w3.org/TR/html50/tabular-data.html#attr-tdth-rowspan)
* (for `'mergeTableCellRight'` and `'mergeTableCellLeft'`) or [`colspan`](https://www.w3.org/TR/html50/tabular-data.html#attr-tdth-colspan)
* (for `'mergeTableCellUp'` and `'mergeTableCellDown'`), the command will be disabled.
*/
export declare class MergeCellCommand extends Command {
	/**
	* The direction that indicates which cell will be merged with the currently selected one.
	*/
	readonly direction: ArrowKeyCodeDirection;
	/**
	* Whether the merge is horizontal (left/right) or vertical (up/down).
	*/
	readonly isHorizontal: boolean;
	/**
	* @inheritDoc
	*/
	value: ModelNode | undefined;
	/**
	* Creates a new `MergeCellCommand` instance.
	*
	* @param editor The editor on which this command will be used.
	* @param options.direction Indicates which cell to merge with the currently selected one.
	* Possible values are: `'left'`, `'right'`, `'up'` and `'down'`.
	*/
	constructor(editor: Editor, options: {
		direction: ArrowKeyCodeDirection;
	});
	/**
	* @inheritDoc
	*/
	override refresh(): void;
	/**
	* Executes the command.
	*
	* Depending on the command's {@link #direction} value, it will merge the cell that is to the `'left'`, `'right'`, `'up'` or `'down'`.
	*
	* @fires execute
	*/
	override execute(): void;
	/**
	* Returns a cell that can be merged with the current cell depending on the command's direction.
	*/
	private _getMergeableCell;
}