X-Git-Url: http://www.aleph1.co.uk/gitweb/?a=blobdiff_plain;f=web%2Fcore%2Fmisc%2Fannounce.js;fp=web%2Fcore%2Fmisc%2Fannounce.js;h=a2b34d8302cfc47a77df8c119a7b8789f8ef8597;hb=9917807b03b64faf00f6a1f29dcb6eafc454efa5;hp=acf850a641476530e8008e646807ecf9558b2654;hpb=aea91e65e895364e460983b890e295aa5d5540a5;p=yaffs-website

diff --git a/web/core/misc/announce.js b/web/core/misc/announce.js
index acf850a64..a2b34d830 100644
--- a/web/core/misc/announce.js
+++ b/web/core/misc/announce.js
@@ -1,41 +1,16 @@
 /**
- * @file
- * Adds an HTML element and method to trigger audio UAs to read system messages.
- *
- * Use {@link Drupal.announce} to indicate to screen reader users that an
- * element on the page has changed state. For instance, if clicking a link
- * loads 10 more items into a list, one might announce the change like this.
- *
- * @example
- * $('#search-list')
- *   .on('itemInsert', function (event, data) {
- *     // Insert the new items.
- *     $(data.container.el).append(data.items.el);
- *     // Announce the change to the page contents.
- *     Drupal.announce(Drupal.t('@count items added to @container',
- *       {'@count': data.items.length, '@container': data.container.title}
- *     ));
- *   });
- */
+* DO NOT EDIT THIS FILE.
+* See the following change record for more information,
+* https://www.drupal.org/node/2815083
+* @preserve
+**/
 
 (function (Drupal, debounce) {
-
-  'use strict';
-
-  var liveElement;
+  var liveElement = void 0;
   var announcements = [];
 
-  /**
-   * Builds a div element with the aria-live attribute and add it to the DOM.
-   *
-   * @type {Drupal~behavior}
-   *
-   * @prop {Drupal~behaviorAttach} attach
-   *   Attaches the behavior for drupalAnnouce.
-   */
   Drupal.behaviors.drupalAnnounce = {
-    attach: function (context) {
-      // Create only one aria-live element.
+    attach: function attach(context) {
       if (!liveElement) {
         liveElement = document.createElement('div');
         liveElement.id = 'drupal-live-announce';
@@ -47,74 +22,40 @@
     }
   };
 
-  /**
-   * Concatenates announcements to a single string; appends to the live region.
-   */
   function announce() {
     var text = [];
     var priority = 'polite';
-    var announcement;
+    var announcement = void 0;
 
-    // Create an array of announcement strings to be joined and appended to the
-    // aria live region.
     var il = announcements.length;
     for (var i = 0; i < il; i++) {
       announcement = announcements.pop();
       text.unshift(announcement.text);
-      // If any of the announcements has a priority of assertive then the group
-      // of joined announcements will have this priority.
+
       if (announcement.priority === 'assertive') {
         priority = 'assertive';
       }
     }
 
     if (text.length) {
-      // Clear the liveElement so that repeated strings will be read.
       liveElement.innerHTML = '';
-      // Set the busy state to true until the node changes are complete.
+
       liveElement.setAttribute('aria-busy', 'true');
-      // Set the priority to assertive, or default to polite.
+
       liveElement.setAttribute('aria-live', priority);
-      // Print the text to the live region. Text should be run through
-      // Drupal.t() before being passed to Drupal.announce().
+
       liveElement.innerHTML = text.join('\n');
-      // The live text area is updated. Allow the AT to announce the text.
+
       liveElement.setAttribute('aria-busy', 'false');
     }
   }
 
-  /**
-   * Triggers audio UAs to read the supplied text.
-   *
-   * The aria-live region will only read the text that currently populates its
-   * text node. Replacing text quickly in rapid calls to announce results in
-   * only the text from the most recent call to {@link Drupal.announce} being
-   * read. By wrapping the call to announce in a debounce function, we allow for
-   * time for multiple calls to {@link Drupal.announce} to queue up their
-   * messages. These messages are then joined and append to the aria-live region
-   * as one text node.
-   *
-   * @param {string} text
-   *   A string to be read by the UA.
-   * @param {string} [priority='polite']
-   *   A string to indicate the priority of the message. Can be either
-   *   'polite' or 'assertive'.
-   *
-   * @return {function}
-   *   The return of the call to debounce.
-   *
-   * @see http://www.w3.org/WAI/PF/aria-practices/#liveprops
-   */
   Drupal.announce = function (text, priority) {
-    // Save the text and priority into a closure variable. Multiple simultaneous
-    // announcements will be concatenated and read in sequence.
     announcements.push({
       text: text,
       priority: priority
     });
-    // Immediately invoke the function that debounce returns. 200 ms is right at
-    // the cusp where humans notice a pause, so we will wait
-    // at most this much time before the set of queued announcements is read.
-    return (debounce(announce, 200)());
+
+    return debounce(announce, 200)();
   };
-}(Drupal, Drupal.debounce));
+})(Drupal, Drupal.debounce);
\ No newline at end of file