/**
* @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
*/
import { Plugin, type Editor, type PluginDependenciesOf } from "@ckeditor/ckeditor5-core";
import type { ModelElement } from "@ckeditor/ckeditor5-engine";
import { TableEditing } from "../tableediting.js";
import { TableUtils } from "../tableutils.js";
/**
* The table column resize editing plugin.
*/
export declare class TableColumnResizeEditing extends Plugin {
	/**
	* A flag indicating if the column resizing is in progress.
	*/
	private _isResizingActive;
	/**
	* A flag indicating if the column resizing is allowed. It is not allowed if the editor is in read-only
	* or comments-only mode or the `TableColumnResize` plugin is disabled.
	*
	* @observable
	* @internal
	*/
	_isResizingAllowed: boolean;
	/**
	* A temporary storage for the required data needed to correctly calculate the widths of the resized columns. This storage is
	* initialized when column resizing begins, and is purged upon completion.
	*/
	private _resizingData;
	/**
	* DOM emitter.
	*/
	private _domEmitter;
	/**
	* A local reference to the {@link module:table/tableutils~TableUtils} plugin.
	*/
	private _tableUtilsPlugin;
	/**
	* Starting mouse position data used to add a threshold to the resizing process.
	*/
	private _initialMouseEventData;
	/**
	* @inheritDoc
	*/
	static get requires(): PluginDependenciesOf<[TableEditing, TableUtils]>;
	/**
	* @inheritDoc
	*/
	static get pluginName(): "TableColumnResizeEditing";
	/**
	* @inheritDoc
	* @internal
	*/
	static get licenseFeatureCode(): string;
	/**
	* @inheritDoc
	*/
	static override get isOfficialPlugin(): true;
	/**
	* @inheritDoc
	*/
	static override get isPremiumPlugin(): true;
	/**
	* @inheritDoc
	*/
	constructor(editor: Editor);
	/**
	* @inheritDoc
	*/
	init(): void;
	/**
	* @inheritDoc
	*/
	override destroy(): void;
	/**
	* Returns a 'tableColumnGroup' element from the 'table'.
	*
	* @param element A 'table' or 'tableColumnGroup' element.
	* @returns A 'tableColumnGroup' element.
	*/
	getColumnGroupElement(element: ModelElement): ModelElement | undefined;
	/**
	* Returns an array of 'tableColumn' elements.
	*
	* @param element A 'table' or 'tableColumnGroup' element.
	* @returns An array of 'tableColumn' elements.
	*/
	getTableColumnElements(element: ModelElement): Array<ModelElement>;
	/**
	* Returns an array of table column widths.
	*
	* @param element A 'table' or 'tableColumnGroup' element.
	* @returns An array of table column widths.
	*/
	getTableColumnsWidths(element: ModelElement): Array<string>;
	/**
	* Registers new attributes for a table model element.
	*/
	private _extendSchema;
	/**
	* Registers table column resize post-fixer.
	*
	* It checks if the change from the differ concerns a table-related element or attribute. For detected changes it:
	*  * Adjusts the `columnWidths` attribute to guarantee that the sum of the widths from all columns is 100%.
	*  * Checks if the `columnWidths` attribute gets updated accordingly after columns have been added or removed.
	*/
	private _registerPostFixer;
	/**
	* Registers table column resize converters.
	*/
	private _registerConverters;
	/**
	* Registers listeners to handle resizing process.
	*/
	private _registerResizingListeners;
	/**
	* Calculate and set `top` and `bottom` styles to the column resizer element to fit the height of the table.
	*
	* @param viewResizer The column resizer element.
	*/
	private _recalculateResizerElement;
	/**
	* Remove `top` and `bottom` styles of the column resizer element.
	*
	* @param viewResizer The column resizer element.
	*/
	private _resetResizerStyles;
	/**
	* Handles the `mouseover` event on column resizer element.
	* Recalculates the `top` and `bottom` styles of the column resizer element to fit the height of the table.
	*
	* @param eventInfo An object containing information about the fired event.
	* @param domEventData The data related to the DOM event.
	*/
	private _onMouseOverHandler;
	/**
	* Handles the `mouseout` event on column resizer element.
	* When resizing is not active, it resets the `top` and `bottom` styles of the column resizer element.
	*
	* @param eventInfo An object containing information about the fired event.
	* @param domEventData The data related to the DOM event.
	*/
	private _onMouseOutHandler;
	/**
	* Handles the `mousedown` event on column resizer element:
	*  * calculates the initial column pixel widths,
	*  * inserts the `<colgroup>` element if it is not present in the `<table>`,
	*  * puts the necessary data in the temporary storage,
	*  * applies the attributes to the `<table>` view element.
	*
	* @param eventInfo An object containing information about the fired event.
	* @param domEventData The data related to the DOM event.
	*/
	private _onMouseDownHandler;
	/**
	* Starts the resizing process after the threshold is reached.
	*/
	private _startResizingAfterThreshold;
	/**
	* Handles the `mousemove` event.
	*  * If resizing process is not in progress, it does nothing.
	*  * If resizing is active but not allowed, it stops the resizing process instantly calling the `mousedown` event handler.
	*  * Otherwise it dynamically updates the widths of the resized columns.
	*
	* @param eventInfo An object containing information about the fired event.
	* @param mouseEventData The native DOM event.
	*/
	private _onMouseMoveHandler;
	/**
	* Handles the `mouseup` event.
	*  * If resizing process is not in progress, it does nothing.
	*  * If resizing is active but not allowed, it cancels the resizing process restoring the original widths.
	*  * Otherwise it propagates the changes from view to the model by executing the adequate commands.
	*/
	private _onMouseUpHandler;
	/**
	* Retrieves and returns required data needed for the resizing process.
	*
	* @param domEventData The data of the `mousedown` event.
	* @param columnWidths The current widths of the columns.
	* @returns The data needed for the resizing process.
	*/
	private _getResizingData;
	/**
	* Registers a listener ensuring that each resizable cell have a resizer handle.
	*/
	private _registerResizerInserter;
}