/******/ (() => { // webpackBootstrap

/******/ 	"use strict";

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/******/ 	var __webpack_require__ = {};

/******/ 	

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

/******/ 	/* webpack/runtime/define property getters */

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var __webpack_exports__ = {};

/* harmony export */ __webpack_require__.d(__webpack_exports__, {

/* harmony export */   "default": () => (/* binding */ TokenList)

/* harmony export */ });

/**

 * A set of tokens.

 *

 * @see https://dom.spec.whatwg.org/#domtokenlist

 */

class TokenList {

  /**

   * Constructs a new instance of TokenList.

   *

   */

  constructor(initialValue = '') {

    this.value = initialValue;

  }

  entries(...args) {

    return this._valueAsArray.entries(...args);

  }

  forEach(...args) {

    return this._valueAsArray.forEach(...args);

  }

  keys(...args) {

    return this._valueAsArray.keys(...args);

  }

  values(...args) {

    return this._valueAsArray.values(...args);

  }

  /**

   * Returns the associated set as string.

   *

   * @see https://dom.spec.whatwg.org/#dom-domtokenlist-value

   *

   */

  get value() {

    return this._currentValue;

  }

  /**

   * Replaces the associated set with a new string value.

   *

   * @see https://dom.spec.whatwg.org/#dom-domtokenlist-value

   *

   */

  set value(value) {

    value = String(value);

    this._valueAsArray = [...new Set(value.split(/\s+/g).filter(Boolean))];

    this._currentValue = this._valueAsArray.join(' ');

  }

  /**

   * Returns the number of tokens.

   *

   * @see https://dom.spec.whatwg.org/#dom-domtokenlist-length

   *

   */

  get length() {

    return this._valueAsArray.length;

  }

  /**

   * Returns the stringified form of the TokenList.

   *

   * @see https://dom.spec.whatwg.org/#DOMTokenList-stringification-behavior

   * @see https://www.ecma-international.org/ecma-262/9.0/index.html#sec-tostring

   *

   */

  toString() {

    return this.value;

  }

  /**

   * Returns an iterator for the TokenList, iterating items of the set.

   *

   * @see https://dom.spec.whatwg.org/#domtokenlist

   *

   */

  *[Symbol.iterator]() {

    return yield* this._valueAsArray;

  }

  /**

   * Returns the token with index `index`.

   *

   * @see https://dom.spec.whatwg.org/#dom-domtokenlist-item

   *

   *

   */

  item(index) {

    return this._valueAsArray[index];

  }

  /**

   * Returns true if `token` is present, and false otherwise.

   *

   * @see https://dom.spec.whatwg.org/#dom-domtokenlist-contains

   *

   *

   */

  contains(item) {

    return this._valueAsArray.indexOf(item) !== -1;

  }

  /**

   * Adds all arguments passed, except those already present.

   *

   * @see https://dom.spec.whatwg.org/#dom-domtokenlist-add

   *

   */

  add(...items) {

    this.value += ' ' + items.join(' ');

  }

  /**

   * Removes arguments passed, if they are present.

   *

   * @see https://dom.spec.whatwg.org/#dom-domtokenlist-remove

   *

   */

  remove(...items) {

    this.value = this._valueAsArray.filter(val => !items.includes(val)).join(' ');

  }

  /**

   * If `force` is not given, "toggles" `token`, removing it if it’s present

   * and adding it if it’s not present. If `force` is true, adds token (same

   * as add()). If force is false, removes token (same as remove()). Returns

   * true if `token` is now present, and false otherwise.

   *

   * @see https://dom.spec.whatwg.org/#dom-domtokenlist-toggle

   *

   *

   */

  toggle(token, force) {

    if (undefined === force) {

      force = !this.contains(token);

    }

    if (force) {

      this.add(token);

    } else {

      this.remove(token);

    }

    return force;

  }

  /**

   * Replaces `token` with `newToken`. Returns true if `token` was replaced

   * with `newToken`, and false otherwise.

   *

   * @see https://dom.spec.whatwg.org/#dom-domtokenlist-replace

   *

   *

   */

  replace(token, newToken) {

    if (!this.contains(token)) {

      return false;

    }

    this.remove(token);

    this.add(newToken);

    return true;

  }

  /**

   * Returns true if `token` is in the associated attribute’s supported

   * tokens. Returns false otherwise.

   *

   * Always returns `true` in this implementation.

   *

   * @see https://dom.spec.whatwg.org/#dom-domtokenlist-supports

   *

   */

    return true;

  }

}

(window.wp = window.wp || {}).tokenList = __webpack_exports__["default"];

/******/ })()

;