Merge branch 'MDL-34558_accessibility_m22' of git://github.com/rwijaya/moodle into MOODLE_22_STABLE

filter/algebra/algebradebug.php

@@ -280,7 +280,8 @@ function slasharguments($texexp, $md5) {
           <form action="algebradebug.php" method="get"
            target="inlineframe">
             <center>
-             <input type="text" name="algebra" size="50"
+             <label for="algebra" class="accesshide"><?php print_string('algebraicexpression', 'filter_algebra'); ?></label>
+             <input type="text" id="algebra" name="algebra" size="50"
                     value="sin(z)/(x^2+y^2)" />
             </center>
            <ol>

filter/algebra/lang/en/filter_algebra.php

@@ -24,3 +24,4 @@
  */
 
 $string['filtername'] = 'Algebra notation';
+$string['algebraicexpression'] = 'Algebraic expression';

filter/manage.php

@@ -181,7 +181,10 @@ if (empty($availablefilters)) {
         } else {
             $activechoices[TEXTFILTER_INHERIT] = $strdefaultoff;
         }
-        $row[] = html_writer::select($activechoices, str_replace('/', '_', $filter), $filterinfo->localstate, false);
+        $filtername = str_replace('/', '_', $filter);
+        $select = html_writer::label($filterinfo->localstate, 'menu'. $filtername, false, array('class' => 'accesshide'));
+        $select .= html_writer::select($activechoices, $filtername, $filterinfo->localstate, false);
+        $row[] = $select;
 
         // Settings link, if required
         if ($settingscol) {