/******/ 		};

/************************************************************************/

// ESM COMPAT FLAG

__webpack_require__.r(__webpack_exports__);

// EXPORTS

// NAMESPACE OBJECT: ./node_modules/@wordpress/dom/build-module/focusable.js

var focusable_namespaceObject = {};

__webpack_require__.r(focusable_namespaceObject);

// NAMESPACE OBJECT: ./node_modules/@wordpress/dom/build-module/tabbable.js

var tabbable_namespaceObject = {};

__webpack_require__.r(tabbable_namespaceObject);

/**

 * References:

 *

 * Focusable:

 *  - https://www.w3.org/TR/html5/editing.html#focus-management

 *

 * Sequential focus navigation:

 *  - https://www.w3.org/TR/html5/editing.html#sequential-focus-navigation-and-the-tabindex-attribute

 *

 * Disabled elements:

 *  - https://www.w3.org/TR/html5/disabled-elements.html#disabled-elements

 *

 * getClientRects algorithm (requiring layout box):

 *  - https://www.w3.org/TR/cssom-view-1/#extension-to-the-element-interface

 *

 * AREA elements associated with an IMG:

 *  - https://w3c.github.io/html/editing.html#data-model

 */

/**

 * Returns true if the specified element is visible (i.e. neither display: none

 * nor visibility: hidden).

 *

 * @param {HTMLElement} element DOM element to test.

 *

 * @return {boolean} Whether element is visible.

 */

function isVisible(element) {

  return element.offsetWidth > 0 || element.offsetHeight > 0 || element.getClientRects().length > 0;

}

/**

 * Returns true if the specified area element is a valid focusable element, or

 * false otherwise. Area is only focusable if within a map where a named map

 * referenced by an image somewhere in the document.

 *

 * @param {HTMLAreaElement} element DOM area element to test.

 *

 * @return {boolean} Whether area element is valid for focus.

 */

function isValidFocusableArea(element) {

  /** @type {HTMLMapElement | null} */

  const map = element.closest('map[name]');

  if (!map) {

    return false;

  }

  /** @type {HTMLImageElement | null} */

  const img = element.ownerDocument.querySelector('img[usemap="#' + map.name + '"]');

  return !!img && isVisible(img);

}

/**

 * Returns all focusable elements within a given context.

 *

 *

 * @return {Element[]} Focusable elements.

 */

function find(context) {

  /* eslint-disable jsdoc/no-undefined-types */

  /** @type {NodeListOf<HTMLElement>} */

  /* eslint-enable jsdoc/no-undefined-types */

  return Array.from(elements).filter(element => {

      return false;

    }

    const {

      nodeName

    } = element;

    if ('AREA' === nodeName) {

      return isValidFocusableArea(

      /** @type {HTMLAreaElement} */

      element);

    }

    return true;

  });

}

/**

 * External dependencies

 */

/**

 * Internal dependencies

 */

/**

 * Returns the tab index of the given element. In contrast with the tabIndex

 * property, this normalizes the default (0) to avoid browser inconsistencies,

 * operating under the assumption that this function is only ever called with a

 * focusable node.

 *

 * @see https://bugzilla.mozilla.org/show_bug.cgi?id=1190261

 *

 * @param {Element} element Element from which to retrieve.

 *

 * @return {number} Tab index of element (default 0).

 */

function getTabIndex(element) {

  const tabIndex = element.getAttribute('tabindex');

  return tabIndex === null ? 0 : parseInt(tabIndex, 10);

}

/**

 * Returns true if the specified element is tabbable, or false otherwise.

 *

 * @param {Element} element Element to test.

 *

 * @return {boolean} Whether element is tabbable.

 */

function isTabbableIndex(element) {

  return getTabIndex(element) !== -1;

}

/** @typedef {Element & { type?: string, checked?: boolean, name?: string }} MaybeHTMLInputElement */

/**

 * Returns a stateful reducer function which constructs a filtered array of

 * tabbable elements, where at most one radio input is selected for a given

 * name, giving priority to checked input, falling back to the first

 * encountered.

 *

 * @return {(acc: MaybeHTMLInputElement[], el: MaybeHTMLInputElement) => MaybeHTMLInputElement[]} Radio group collapse reducer.

 */

function createStatefulCollapseRadioGroup() {

  /** @type {Record<string, MaybeHTMLInputElement>} */

  const CHOSEN_RADIO_BY_NAME = {};

  return function collapseRadioGroup(

  /** @type {MaybeHTMLInputElement[]} */

  result,

  /** @type {MaybeHTMLInputElement} */

  element) {

    const {

      nodeName,

      type,

      checked,

      name

    } = element; // For all non-radio tabbables, construct to array by concatenating.

    if (nodeName !== 'INPUT' || type !== 'radio' || !name) {

      return result.concat(element);

    }

    const hasChosen = CHOSEN_RADIO_BY_NAME.hasOwnProperty(name); // Omit by skipping concatenation if the radio element is not chosen.

    const isChosen = checked || !hasChosen;

    if (!isChosen) {

      return result;

    } // At this point, if there had been a chosen element, the current

    // element is checked and should take priority. Retroactively remove

    // the element which had previously been considered the chosen one.

    if (hasChosen) {

      const hadChosenElement = CHOSEN_RADIO_BY_NAME[name];

    }

    CHOSEN_RADIO_BY_NAME[name] = element;

    return result.concat(element);

  };

}

/**

 * An array map callback, returning an object with the element value and its

 * array index location as properties. This is used to emulate a proper stable

 * sort where equal tabIndex should be left in order of their occurrence in the

 * document.

 *

 * @param {Element} element Element.

 * @param {number}  index   Array index of element.

 *

 * @return {{ element: Element, index: number }} Mapped object with element, index.

 */

function mapElementToObjectTabbable(element, index) {

  return {

    element,

    index

  };

}

/**

 * An array map callback, returning an element of the given mapped object's

 * element value.

 *

 * @param {{ element: Element }} object Mapped object with element.

 *

 * @return {Element} Mapped object element.

 */

function mapObjectTabbableToElement(object) {

  return object.element;

}

/**

 * A sort comparator function used in comparing two objects of mapped elements.

 *

 * @see mapElementToObjectTabbable

 *

 * @param {{ element: Element, index: number }} a First object to compare.

 * @param {{ element: Element, index: number }} b Second object to compare.

 *

 * @return {number} Comparator result.

 */

function compareObjectTabbables(a, b) {

  const aTabIndex = getTabIndex(a.element);

  const bTabIndex = getTabIndex(b.element);

  if (aTabIndex === bTabIndex) {

    return a.index - b.index;

  }

  return aTabIndex - bTabIndex;

}

/**

 * Givin focusable elements, filters out tabbable element.

 *

 * @param {Element[]} focusables Focusable elements to filter.

 *

 * @return {Element[]} Tabbable elements.

 */

function filterTabbable(focusables) {

  return focusables.filter(isTabbableIndex).map(mapElementToObjectTabbable).sort(compareObjectTabbables).map(mapObjectTabbableToElement).reduce(createStatefulCollapseRadioGroup(), []);

}

/**

 * @param {Element} context

 * @return {Element[]} Tabbable elements within the context.

 */

function tabbable_find(context) {

  return filterTabbable(find(context));

}

/**

 * Given a focusable element, find the preceding tabbable element.

 *

 * @param {Element} element The focusable element before which to look. Defaults

 *                          to the active element.

 */

function findPrevious(element) {