Merge branch 'master' into stable

* master: (413 commits)
  release preparation
  fixed strict violation in ACL plugin
  Fix issues from teams:i18n:translation-check in localizations
  ensure locale is set back to the original value
  skip FS#2867 test if \s doesn't match \xA0 after attempting to change the locale
  unittests for auth_loadACL
  translation update
  allow charset for SSO to be configured FS#2148
  Mailer: avoid overlong headers in content ids FS#2868
  translation update
  translation update
  replace \s, \S with [ \t], [^ \t] in regexs used with acls
  translation update
  translation update
  translation update
  translation update
  Fix handling of the legacy subscription action name
  remove obsolete opera handling and session closing
  remove no longer used ajax.php
  fix proxy CONNECT where HTTP 1.1 answer is given
  ...

1 files changed, 17 insertions, 3 deletions

diff --git a/lib/scripts/tree.js b/lib/scripts/tree.js
index 96763053d..c4e1da3f7 100644
--- a/lib/scripts/tree.js
+++ b/lib/scripts/tree.js
@@ -14,6 +14,12 @@ jQuery.fn.dw_tree = function(overrides) {
         init: function () {
             this.$obj.delegate(this.toggle_selector, 'click', this,
                                this.toggle);
+            jQuery('ul:first', this.$obj).attr('role', 'tree');
+            jQuery('ul', this.$obj).not(':first').attr('role', 'group');
+            jQuery('li', this.$obj).attr('role', 'treeitem');
+            jQuery('li.open > ul', this.$obj).attr('aria-expanded', 'true');
+            jQuery('li.closed > ul', this.$obj).attr('aria-expanded', 'false');
+            jQuery('li.closed', this.$obj).attr('aria-live', 'assertive');
         },
 
         /**
@@ -35,8 +41,14 @@ jQuery.fn.dw_tree = function(overrides) {
             $listitem = $clicky.closest('li');
             $sublist = $listitem.find('ul').first();
             opening = $listitem.hasClass('closed');
-            $listitem.toggleClass('open closed');
             dw_tree.toggle_display($clicky, opening);
+            if ($sublist.is(':visible')) {
+                $listitem.removeClass('open').addClass('closed');
+                $sublist.attr('aria-expanded', 'false');
+            } else {
+                $listitem.removeClass('closed').addClass('open');
+                $sublist.attr('aria-expanded', 'true');
+            }
 
             // if already open, close by hiding the sublist
             if (!opening) {
@@ -48,6 +60,8 @@ jQuery.fn.dw_tree = function(overrides) {
                 $sublist.hide();
                 if (typeof data !== 'undefined') {
                     $sublist.html(data);
+                    $sublist.parent().attr('aria-busy', 'false').removeAttr('aria-live');
+                    jQuery('li.closed', $sublist).attr('aria-live', 'assertive');
                 }
                 if ($listitem.hasClass('open')) {
                     // Only show if user didn’t close the list since starting
@@ -63,11 +77,11 @@ jQuery.fn.dw_tree = function(overrides) {
             }
 
             //prepare the new ul
-            $sublist = jQuery('<ul class="idx"/>');
+            $sublist = jQuery('<ul class="idx" role="group"/>');
             $listitem.append($sublist);
 
             timeout = window.setTimeout(
-                bind(show_sublist, '<li><img src="' + DOKU_BASE + 'lib/images/throbber.gif" alt="loading..." title="loading..." /></li>'), dw_tree.throbber_delay);
+                bind(show_sublist, '<li aria-busy="true"><img src="' + DOKU_BASE + 'lib/images/throbber.gif" alt="loading..." title="loading..." /></li>'), dw_tree.throbber_delay);
 
             dw_tree.load_data(function (data) {
                                   window.clearTimeout(timeout);