/**
* @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 engine/model/operation/mergeoperation
*/
import { Operation } from "./operation.js";
import { ModelPosition } from "../position.js";
import { ModelRange } from "../range.js";
import { type ModelDocument } from "../document.js";
import type { ModelSelectable } from "../selection.js";
/**
* Operation to merge two {@link module:engine/model/element~ModelElement elements}.
*
* The merged element is the parent of {@link ~MergeOperation#sourcePosition} and it is merged into the parent of
* {@link ~MergeOperation#targetPosition}. All nodes from the merged element are moved to {@link ~MergeOperation#targetPosition}.
*
* The merged element is moved to the graveyard at {@link ~MergeOperation#graveyardPosition}.
*/
export declare class MergeOperation extends Operation {
	/**
	* Position inside the merged element. All nodes from that element after that position will be moved to {@link #targetPosition}.
	*/
	sourcePosition: ModelPosition;
	/**
	* Summary offset size of nodes which will be moved from the merged element to the new parent.
	*/
	howMany: number;
	/**
	* Position which the nodes from the merged elements will be moved to.
	*/
	targetPosition: ModelPosition;
	/**
	* Position in graveyard to which the merged element will be moved.
	*/
	graveyardPosition: ModelPosition;
	/**
	* Creates a merge operation.
	*
	* @param sourcePosition Position inside the merged element. All nodes from that
	* element after that position will be moved to {@link #targetPosition}.
	* @param howMany Summary offset size of nodes which will be moved from the merged element to the new parent.
	* @param targetPosition Position which the nodes from the merged elements will be moved to.
	* @param graveyardPosition Position in graveyard to which the merged element will be moved.
	* @param baseVersion Document {@link module:engine/model/document~ModelDocument#version} on which operation
	* can be applied or `null` if the operation operates on detached (non-document) tree.
	*/
	constructor(sourcePosition: ModelPosition, howMany: number, targetPosition: ModelPosition, graveyardPosition: ModelPosition, baseVersion: number | null);
	/**
	* @inheritDoc
	*/
	get type(): "merge";
	/**
	* Position before the merged element (which will be deleted).
	*/
	get deletionPosition(): ModelPosition;
	/**
	* Artificial range that contains all the nodes from the merged element that will be moved to {@link ~MergeOperation#sourcePosition}.
	* The range starts at {@link ~MergeOperation#sourcePosition} and ends in the same parent, at `POSITIVE_INFINITY` offset.
	*/
	get movedRange(): ModelRange;
	/**
	* @inheritDoc
	*/
	get affectedSelectable(): ModelSelectable;
	/**
	* Creates and returns an operation that has the same parameters as this operation.
	*/
	clone(): MergeOperation;
	/**
	* See {@link module:engine/model/operation/operation~Operation#getReversed `Operation#getReversed()`}.
	*/
	getReversed(): Operation;
	/**
	* @inheritDoc
	* @internal
	*/
	override _validate(): void;
	/**
	* @inheritDoc
	* @internal
	*/
	_execute(): void;
	/**
	* @inheritDoc
	*/
	override toJSON(): unknown;
	/**
	* @inheritDoc
	*/
	static override get className(): string;
	/**
	* Creates `MergeOperation` object from deserialized object, i.e. from parsed JSON string.
	*
	* @param json Deserialized JSON object.
	* @param document Document on which this operation will be applied.
	*/
	static override fromJSON(json: any, document: ModelDocument): MergeOperation;
}