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/wp-includes/js/dist/ -> a11y.js (source)

   1  this["wp"] = this["wp"] || {}; this["wp"]["a11y"] =
   2  /******/ (function(modules) { // webpackBootstrap
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  87  /************************************************************************/
  88  /******/ ({
  89  
  90  /***/ 198:
  91  /***/ (function(module, exports) {
  92  
  93  (function() { module.exports = this["wp"]["domReady"]; }());
  94  
  95  /***/ }),
  96  
  97  /***/ 366:
  98  /***/ (function(module, __webpack_exports__, __webpack_require__) {
  99  
 100  "use strict";
 101  __webpack_require__.r(__webpack_exports__);
 102  
 103  // EXTERNAL MODULE: external {"this":["wp","domReady"]}
 104  var external_this_wp_domReady_ = __webpack_require__(198);
 105  var external_this_wp_domReady_default = /*#__PURE__*/__webpack_require__.n(external_this_wp_domReady_);
 106  
 107  // CONCATENATED MODULE: ./node_modules/@wordpress/a11y/build-module/addContainer.js
 108  /**
 109   * Build the live regions markup.
 110   *
 111   * @param {string} ariaLive Optional. Value for the 'aria-live' attribute, default 'polite'.
 112   *
 113   * @return {Object} $container The ARIA live region jQuery object.
 114   */
 115  var addContainer = function addContainer(ariaLive) {
 116    ariaLive = ariaLive || 'polite';
 117    var container = document.createElement('div');
 118    container.id = 'a11y-speak-' + ariaLive;
 119    container.className = 'a11y-speak-region';
 120    container.setAttribute('style', 'position: absolute;' + 'margin: -1px;' + 'padding: 0;' + 'height: 1px;' + 'width: 1px;' + 'overflow: hidden;' + 'clip: rect(1px, 1px, 1px, 1px);' + '-webkit-clip-path: inset(50%);' + 'clip-path: inset(50%);' + 'border: 0;' + 'word-wrap: normal !important;');
 121    container.setAttribute('aria-live', ariaLive);
 122    container.setAttribute('aria-relevant', 'additions text');
 123    container.setAttribute('aria-atomic', 'true');
 124    document.querySelector('body').appendChild(container);
 125    return container;
 126  };
 127  
 128  /* harmony default export */ var build_module_addContainer = (addContainer);
 129  
 130  // CONCATENATED MODULE: ./node_modules/@wordpress/a11y/build-module/clear.js
 131  /**
 132   * Clear the a11y-speak-region elements.
 133   */
 134  var clear = function clear() {
 135    var regions = document.querySelectorAll('.a11y-speak-region');
 136  
 137    for (var i = 0; i < regions.length; i++) {
 138      regions[i].textContent = '';
 139    }
 140  };
 141  
 142  /* harmony default export */ var build_module_clear = (clear);
 143  
 144  // CONCATENATED MODULE: ./node_modules/@wordpress/a11y/build-module/filterMessage.js
 145  var previousMessage = '';
 146  /**
 147   * Filter the message to be announced to the screenreader.
 148   *
 149   * @param {string} message The message to be announced.
 150   *
 151   * @return {string} The filtered message.
 152   */
 153  
 154  var filterMessage = function filterMessage(message) {
 155    /*
 156     * Strip HTML tags (if any) from the message string. Ideally, messages should
 157     * be simple strings, carefully crafted for specific use with A11ySpeak.
 158     * When re-using already existing strings this will ensure simple HTML to be
 159     * stripped out and replaced with a space. Browsers will collapse multiple
 160     * spaces natively.
 161     */
 162    message = message.replace(/<[^<>]+>/g, ' ');
 163  
 164    if (previousMessage === message) {
 165      message += "\xA0";
 166    }
 167  
 168    previousMessage = message;
 169    return message;
 170  };
 171  
 172  /* harmony default export */ var build_module_filterMessage = (filterMessage);
 173  
 174  // CONCATENATED MODULE: ./node_modules/@wordpress/a11y/build-module/index.js
 175  /* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setup", function() { return build_module_setup; });
 176  /* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "speak", function() { return build_module_speak; });
 177  /**
 178   * WordPress dependencies
 179   */
 180  
 181  /**
 182   * Internal dependencies
 183   */
 184  
 185  
 186  
 187  
 188  /**
 189   * Create the live regions.
 190   */
 191  
 192  var build_module_setup = function setup() {
 193    var containerPolite = document.getElementById('a11y-speak-polite');
 194    var containerAssertive = document.getElementById('a11y-speak-assertive');
 195  
 196    if (containerPolite === null) {
 197      containerPolite = build_module_addContainer('polite');
 198    }
 199  
 200    if (containerAssertive === null) {
 201      containerAssertive = build_module_addContainer('assertive');
 202    }
 203  };
 204  /**
 205   * Run setup on domReady.
 206   */
 207  
 208  external_this_wp_domReady_default()(build_module_setup);
 209  /**
 210   * Allows you to easily announce dynamic interface updates to screen readers using ARIA live regions.
 211   * This module is inspired by the `speak` function in wp-a11y.js
 212   *
 213   * @param {string} message  The message to be announced by Assistive Technologies.
 214   * @param {string} ariaLive Optional. The politeness level for aria-live. Possible values:
 215   *                          polite or assertive. Default polite.
 216   *
 217   * @example
 218   * ```js
 219   * import { speak } from '@wordpress/a11y';
 220   *
 221   * // For polite messages that shouldn't interrupt what screen readers are currently announcing.
 222   * speak( 'The message you want to send to the ARIA live region' );
 223   *
 224   * // For assertive messages that should interrupt what screen readers are currently announcing.
 225   * speak( 'The message you want to send to the ARIA live region', 'assertive' );
 226   * ```
 227   */
 228  
 229  var build_module_speak = function speak(message, ariaLive) {
 230    // Clear previous messages to allow repeated strings being read out.
 231    build_module_clear();
 232    message = build_module_filterMessage(message);
 233    var containerPolite = document.getElementById('a11y-speak-polite');
 234    var containerAssertive = document.getElementById('a11y-speak-assertive');
 235  
 236    if (containerAssertive && 'assertive' === ariaLive) {
 237      containerAssertive.textContent = message;
 238    } else if (containerPolite) {
 239      containerPolite.textContent = message;
 240    }
 241  };
 242  
 243  
 244  /***/ })
 245  
 246  /******/ });


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