/**
* @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 undo/basecommand
*/
import { Command, type Editor } from "@ckeditor/ckeditor5-core";
import { type Batch, type Operation, type ModelRange } from "@ckeditor/ckeditor5-engine";
/**
* Base class for the undo feature commands: {@link module:undo/undocommand~UndoCommand} and {@link module:undo/redocommand~RedoCommand}.
*/
export declare abstract class UndoRedoBaseCommand extends Command {
	/**
	* Stack of items stored by the command. These are pairs of:
	*
	* * {@link module:engine/model/batch~Batch batch} saved by the command,
	* * {@link module:engine/model/selection~ModelSelection selection} state at the moment of saving the batch.
	*/
	protected _stack: Array<{
		batch: Batch;
		selection: {
			ranges: Array<ModelRange>;
			isBackward: boolean;
		};
	}>;
	/**
	* Stores all batches that were created by this command.
	*
	* @internal
	*/
	_createdBatches: WeakSet<Batch>;
	/**
	* @inheritDoc
	*/
	constructor(editor: Editor);
	/**
	* @inheritDoc
	*/
	override refresh(): void;
	/**
	* Returns all batches created by this command.
	*/
	get createdBatches(): WeakSet<Batch>;
	/**
	* Stores a batch in the command, together with the selection state of the {@link module:engine/model/document~ModelDocument document}
	* created by the editor which this command is registered to.
	*
	* @param batch The batch to add.
	*/
	addBatch(batch: Batch): void;
	/**
	* Removes all items from the stack.
	*/
	clearStack(): void;
	/**
	* Restores the {@link module:engine/model/document~ModelDocument#selection document selection} state after a batch was undone.
	*
	* @param ranges Ranges to be restored.
	* @param isBackward A flag describing whether the restored range was selected forward or backward.
	* @param operations Operations which has been applied since selection has been stored.
	*/
	protected _restoreSelection(ranges: Array<ModelRange>, isBackward: boolean, operations: Array<Operation>): void;
	/**
	* Undoes a batch by reversing that batch, transforming reversed batch and finally applying it.
	* This is a helper method for {@link #execute}.
	*
	* @param batchToUndo The batch to be undone.
	* @param undoingBatch The batch that will contain undoing changes.
	*/
	protected _undo(batchToUndo: Batch, undoingBatch: Batch): void;
}
/**
* Fired when execution of the undo or redo command reverts some batch.
*
* @eventName ~UndoRedoBaseCommand#revert
*/
export type UndoRedoBaseCommandRevertEvent = {
	name: "revert";
	args: [batch: Batch, undoingBatch: Batch];
};