/**
* @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 clipboard/dragdrop
*/
import { Plugin, type PluginDependenciesOf } from "@ckeditor/ckeditor5-core";
import { Widget } from "@ckeditor/ckeditor5-widget";
import { ClipboardPipeline } from "./clipboardpipeline.js";
import { DragDropTarget } from "./dragdroptarget.js";
import { DragDropBlockToolbar } from "./dragdropblocktoolbar.js";
import "../theme/clipboard.css";
/**
* The drag and drop feature. It works on top of the {@link module:clipboard/clipboardpipeline~ClipboardPipeline}.
*
* Read more about the clipboard integration in the {@glink framework/deep-dive/clipboard clipboard deep-dive} guide.
*
* @internal
*/
export declare class DragDrop extends Plugin {
	/**
	* The live range over the original content that is being dragged.
	*/
	private _draggedRange;
	/**
	* The UID of current dragging that is used to verify if the drop started in the same editor as the drag start.
	*
	* **Note**: This is a workaround for broken 'dragend' events (they are not fired if the source text node got removed).
	*/
	private _draggingUid;
	/**
	* The reference to the model element that currently has a `draggable` attribute set (it is set while dragging).
	*/
	private _draggableElement;
	/**
	* A delayed callback removing draggable attributes.
	*/
	private _clearDraggableAttributesDelayed;
	/**
	* Whether the dragged content can be dropped only in block context.
	*/
	private _blockMode;
	/**
	* DOM Emitter.
	*/
	private _domEmitter;
	/**
	* The DOM element used to generate dragged preview image.
	*/
	private _previewContainer?;
	/**
	* @inheritDoc
	*/
	static get pluginName(): "DragDrop";
	/**
	* @inheritDoc
	*/
	static override get isOfficialPlugin(): true;
	/**
	* @inheritDoc
	*/
	static get requires(): PluginDependenciesOf<[ClipboardPipeline, Widget, DragDropTarget, DragDropBlockToolbar]>;
	/**
	* @inheritDoc
	*/
	init(): void;
	/**
	* @inheritDoc
	*/
	override destroy(): void;
	/**
	* Drag and drop events handling.
	*/
	private _setupDragging;
	/**
	* Integration with the `clipboardInput` event.
	*/
	private _setupClipboardInputIntegration;
	/**
	* Integration with the `contentInsertion` event of the clipboard pipeline.
	*/
	private _setupContentInsertionIntegration;
	/**
	* Adds listeners that add the `draggable` attribute to the elements while the mouse button is down so the dragging could start.
	*/
	private _setupDraggableAttributeHandling;
	/**
	* Removes the `draggable` attribute from the element that was used for dragging.
	*/
	private _clearDraggableAttributes;
	/**
	* Deletes the dragged content from its original range and clears the dragging state.
	*
	* @param moved Whether the move succeeded.
	*/
	private _finalizeDragging;
	/**
	* Sets the dragged source range based on event target and document selection.
	*/
	private _prepareDraggedRange;
	/**
	* Updates the dragged preview image.
	*/
	private _updatePreview;
}