From 99cdca46b7bcc46fe6affd9e9f9f60a546b2e5b8 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Thu, 05 Jun 2014 03:18:07 -0400
Subject: [PATCH] Merge branch 'dev-accessibility'

---
 program/lib/Roundcube/html.php |   46 +++++++++++++++++++++++++++++++++-------------
 1 files changed, 33 insertions(+), 13 deletions(-)

diff --git a/program/lib/Roundcube/html.php b/program/lib/Roundcube/html.php
index a367112..0209d1b 100644
--- a/program/lib/Roundcube/html.php
+++ b/program/lib/Roundcube/html.php
@@ -3,7 +3,7 @@
 /*
  +-----------------------------------------------------------------------+
  | This file is part of the Roundcube Webmail client                     |
- | Copyright (C) 2005-2011, The Roundcube Dev Team                       |
+ | Copyright (C) 2005-2013, The Roundcube Dev Team                       |
  |                                                                       |
  | Licensed under the GNU General Public License version 3 or            |
  | any later version with exceptions for skins & plugins.                |
@@ -32,8 +32,8 @@
 
     public static $doctype = 'xhtml';
     public static $lc_tags = true;
-    public static $common_attrib = array('id','class','style','title','align');
-    public static $containers = array('iframe','div','span','p','h1','h2','h3','form','textarea','table','thead','tbody','tr','th','td','style','script');
+    public static $common_attrib = array('id','class','style','title','align','unselectable','tabindex','role');
+    public static $containers = array('iframe','div','span','p','h1','h2','h3','ul','form','textarea','table','thead','tbody','tr','th','td','style','script');
 
 
     /**
@@ -269,17 +269,27 @@
             return '';
         }
 
-        $allowed_f = array_flip((array)$allowed);
+        $allowed_f  = array_flip((array)$allowed);
         $attrib_arr = array();
+
         foreach ($attrib as $key => $value) {
             // skip size if not numeric
             if ($key == 'size' && !is_numeric($value)) {
                 continue;
             }
 
-            // ignore "internal" or not allowed attributes
-            if ($key == 'nl' || ($allowed && !isset($allowed_f[$key])) || $value === null) {
+            // ignore "internal" or empty attributes
+            if ($key == 'nl' || $value === null) {
                 continue;
+            }
+
+            // ignore not allowed attributes, except data-*
+            if (!empty($allowed)) {
+                $is_data_attr = @substr_compare($key, 'data-', 0, 5) === 0;
+                $is_aria_attr = @substr_compare($key, 'aria-', 0, 5) === 0;
+                if (!$is_aria_attr && !isset($allowed_f[$key]) && (!$is_data_attr || !isset($allowed_f['data-*']))) {
+                    continue;
+                }
             }
 
             // skip empty eventhandlers
@@ -604,16 +614,17 @@
      *
      * @param mixed $names  Option name or array with option names
      * @param mixed $values Option value or array with option values
+     * @param array $attrib Additional attributes for the option entry
      */
-    public function add($names, $values = null)
+    public function add($names, $values = null, $attrib = array())
     {
         if (is_array($names)) {
             foreach ($names as $i => $text) {
-                $this->options[] = array('text' => $text, 'value' => $values[$i]);
+                $this->options[] = array('text' => $text, 'value' => $values[$i]) + $attrib;
             }
         }
         else {
-            $this->options[] = array('text' => $names, 'value' => $values);
+            $this->options[] = array('text' => $names, 'value' => $values) + $attrib;
         }
     }
 
@@ -644,7 +655,7 @@
                 $option_content = self::quote($option_content);
             }
 
-            $this->content .= self::tag('option', $attr, $option_content);
+            $this->content .= self::tag('option', $attr + $option, $option_content, array('value','label','class','style','title','disabled','selected'));
         }
 
         return parent::show();
@@ -676,8 +687,8 @@
      */
     public function __construct($attrib = array())
     {
-        $default_attrib = self::$doctype == 'xhtml' ? array('summary' => '', 'border' => 0) : array();
-        $this->attrib = array_merge($attrib, $default_attrib);
+        $default_attrib = self::$doctype == 'xhtml' ? array('summary' => '', 'border' => '0') : array();
+        $this->attrib   = array_merge($attrib, $default_attrib);
 
         if (!empty($attrib['tagname']) && $attrib['tagname'] != 'table') {
           $this->tagname = $attrib['tagname'];
@@ -826,7 +837,7 @@
         if (!empty($this->header)) {
             $rowcontent = '';
             foreach ($this->header as $c => $col) {
-                $rowcontent .= self::tag($this->_col_tagname(), $col->attrib, $col->content);
+                $rowcontent .= self::tag($this->_head_tagname(), $col->attrib, $col->content);
             }
             $thead = $this->tagname == 'table' ? self::tag('thead', null, self::tag('tr', null, $rowcontent, parent::$common_attrib)) :
                 self::tag($this->_row_tagname(), array('class' => 'thead'), $rowcontent, parent::$common_attrib);
@@ -883,6 +894,15 @@
     }
 
     /**
+     * Getter for the corresponding tag name for table row elements
+     */
+    private function _head_tagname()
+    {
+        static $head_tagnames = array('table' => 'th', '*' => 'span');
+        return $head_tagnames[$this->tagname] ?: $head_tagnames['*'];
+    }
+
+    /**
      * Getter for the corresponding tag name for table cell elements
      */
     private function _col_tagname()

--
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