/**
* @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 ui/input/inputbase
*/
import { View } from "../view.js";
import { FocusTracker, type Locale } from "@ckeditor/ckeditor5-utils";
/**
* The base input view class.
*/
export declare abstract class InputBase<TElement extends HTMLInputElement | HTMLTextAreaElement = HTMLInputElement> extends View<TElement> {
	/**
	* Stores information about the editor UI focus and propagates it so various plugins and components
	* are unified as a focus group.
	*/
	readonly focusTracker: FocusTracker;
	/**
	* The value of the input.
	*
	* @observable
	*/
	value: string | undefined;
	/**
	* The `id` attribute of the input (i.e. to pair with a `<label>` element).
	*
	* @observable
	*/
	id: string | undefined;
	/**
	* The `placeholder` attribute of the input.
	*
	* @observable
	*/
	placeholder: string | undefined;
	/**
	* The `tabindex` attribute of the input.
	*
	* @observable
	*/
	tabIndex: number | undefined;
	/**
	* The `aria-label` attribute of the input.
	*
	* @observable
	*/
	ariaLabel: string | undefined;
	/**
	* Controls whether the input view is in read-only mode.
	*
	* @observable
	*/
	isReadOnly: boolean;
	/**
	* Set to `true` when the field has some error. Usually controlled via
	* {@link module:ui/labeledinput/labeledinputview~LabeledInputView#errorText}.
	*
	* @observable
	*/
	hasError: boolean;
	/**
	* The `id` of the element describing this field, e.g. when it has
	* some error; it helps screen readers read the error text.
	*
	* @observable
	*/
	ariaDescribedById: string | undefined;
	/**
	* An observable flag set to `true` when the input is currently focused by the user.
	* Set to `false` otherwise.
	*
	* @readonly
	* @observable
	* @default false
	*/
	isFocused: boolean;
	/**
	* An observable flag set to `true` when the input contains no text, i.e.
	* when {@link #value} is `''`, `null`, or `false`.
	*
	* @readonly
	* @observable
	* @default true
	*/
	isEmpty: boolean;
	/**
	* @inheritDoc
	*/
	constructor(locale?: Locale);
	/**
	* @inheritDoc
	*/
	override render(): void;
	/**
	* @inheritDoc
	*/
	override destroy(): void;
	/**
	* Moves the focus to the input and selects the value.
	*/
	select(): void;
	/**
	* Focuses the input.
	*/
	focus(): void;
	/**
	* Resets the value of the input
	*/
	reset(): void;
	/**
	* Updates the {@link #isEmpty} property value on demand.
	*/
	protected _updateIsEmpty(): void;
	/**
	* Sets the `value` property of the {@link #element DOM element} on demand.
	*/
	private _setDomElementValue;
}