import { VirtualKey } from '../widgets/VirtualKeyboard/VirtualKey.js';
import type { WidgetProperties } from '../widgets/Widget.js';
import type { KeyContext } from './KeyContext.js';
/**
 * A template for a single virtual keyboard key. A function that, when called
 * given a {@link KeyContext} and theme override, returns a {@link VirtualKey}
 * which can be used as a virtual keyboard key widget.
 *
 * Example:
 * ```typescript
 * const template: VirtualKeyTemplate = (keyContext, properties) => new BackspaceKey(keyContext, properties);
 * ```
 *
 * @category Core
 */
export type VirtualKeyTemplate = (keyContext: KeyContext, properties?: Readonly<WidgetProperties>) => VirtualKey;
/**
 * A template for multiple {@link GlyphVirtualKey} virtual keyboard keys. A
 * 2-tuple of strings, where each string has the same length. Each character of
 * the string represents a glyph to add to a keyboard row. The first string of
 * the tuple has the regular glyphs, while the second string string of the tuple
 * has the alternative glyphs.
 *
 * Example:
 * ```typescript
 * const template: GlyphVirtualKeysTemplate = ['qwertyuiop', 'QWERTYUIOP'];
 * ```
 *
 * @category Core
 */
export type GlyphVirtualKeysTemplate = [string, string];
/**
 * A template for a single row of virtual keyboard keys. An array of
 * {@link GlyphVirtualKeysTemplate} and {@link VirtualKeyTemplate}.
 *
 * Example:
 * ```typescript
 * const backspaceTemplate: VirtualKeyTemplate = (keyContext, themeProperties) => new BackspaceKey(keyContext, themeProperties);
 * const rowTemplate: VirtualKeyRowTemplate = [['`1234567890-=', '~!@#$%^&*()_+'], backspaceTemplate];
 * ```
 *
 * @category Core
 */
export type VirtualKeyRowTemplate = Array<GlyphVirtualKeysTemplate | VirtualKeyTemplate>;
/**
 * A template for the keys in a {@link VirtualKeyboard}. Each member of the
 * array contains the template for a row of keys, from top to bottom.
 *
 * @category Core
 */
export type VirtualKeyboardTemplate = Array<VirtualKeyRowTemplate>;
/**
 * The default template for the keys in a {@link VirtualKeyboard}; A QWERTY
 * keyboard with US layout.
 *
 * @category Core
 */
export declare const defaultVirtualKeyboardTemplate: VirtualKeyboardTemplate;