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/**
 * @license
 * Copyright (c) 2018 - 2024 Vaadin Ltd.
 * This program is available under Apache License Version 2.0, available at https://vaadin.com/license/
 */
import { ElementMixin } from '@vaadin/component-base/src/element-mixin.js';
import { ThemableMixin } from '@vaadin/vaadin-themable-mixin/vaadin-themable-mixin.js';
import { CheckboxGroupMixin } from './vaadin-checkbox-group-mixin.js';

/**
 * Fired when the `invalid` property changes.
 */
export type CheckboxGroupInvalidChangedEvent = CustomEvent<{ value: boolean }>;

/**
 * Fired when the `value` property changes.
 */
export type CheckboxGroupValueChangedEvent = CustomEvent<{ value: string[] }>;

/**
 * Fired whenever the field is validated.
 */
export type CheckboxGroupValidatedEvent = CustomEvent<{ valid: boolean }>;

export interface CheckboxGroupCustomEventMap {
  'invalid-changed': CheckboxGroupInvalidChangedEvent;

  'value-changed': CheckboxGroupValueChangedEvent;

  validated: CheckboxGroupValidatedEvent;
}

export interface CheckboxGroupEventMap extends HTMLElementEventMap, CheckboxGroupCustomEventMap {}

/**
 * `` is a web component that allows the user to choose several items from a group of binary choices.
 *
 * ```html
 * 
 *   
 *   
 *   
 *   
 * 
 * ```
 *
 * ### Styling
 *
 * The following shadow DOM parts are available for styling:
 *
 * Part name            | Description
 * ---------------------|----------------
 * `label`              | The slotted label element wrapper
 * `group-field`        | The checkbox elements wrapper
 * `helper-text`        | The slotted helper text element wrapper
 * `error-message`      | The slotted error message element wrapper
 * `required-indicator` | The `required` state indicator element
 *
 * The following state attributes are available for styling:
 *
 * Attribute           | Description                               | Part name
 * --------------------|-------------------------------------------|------------
 * `disabled`          | Set when the element is disabled          | :host
 * `readonly`          | Set when the element is readonly          | :host
 * `invalid`           | Set when the element is invalid           | :host
 * `focused`           | Set when the element is focused           | :host
 * `has-label`         | Set when the element has a label          | :host
 * `has-value`         | Set when the element has a value          | :host
 * `has-helper`        | Set when the element has helper text      | :host
 * `has-error-message` | Set when the element has an error message | :host
 *
 * See [Styling Components](https://vaadin.com/docs/latest/styling/styling-components) documentation.
 *
 * @fires {CustomEvent} invalid-changed - Fired when the `invalid` property changes.
 * @fires {CustomEvent} value-changed - Fired when the `value` property changes.
 * @fires {CustomEvent} validated - Fired whenever the field is validated.
 */
declare class CheckboxGroup extends CheckboxGroupMixin(ElementMixin(ThemableMixin(HTMLElement))) {
  addEventListener(
    type: K,
    listener: (this: CheckboxGroup, ev: CheckboxGroupEventMap[K]) => void,
    options?: AddEventListenerOptions | boolean,
  ): void;

  removeEventListener(
    type: K,
    listener: (this: CheckboxGroup, ev: CheckboxGroupEventMap[K]) => void,
    options?: EventListenerOptions | boolean,
  ): void;
}

declare global {
  interface HTMLElementTagNameMap {
    'vaadin-checkbox-group': CheckboxGroup;
  }
}

export { CheckboxGroup };