handle empty or nulled content

conlite/external/wysiwyg/tinymce3/editor.php

@@ -1,4 +1,5 @@
 <?php
+
 /**
  * Project: 
  * Contenido Content Management System
@@ -53,25 +54,22 @@ if ($a_content[$type][$typenr]) {
     // if not set it is possible to use available content from var $editor_content
 }
 
-$editor_content = clHtmlSpecialChars($editor_content);
+$editor_content = is_null($editor_content) ? '' : clHtmlSpecialChars($editor_content);
 
 $cTinyMCEEditor = new cTinyMCEEditor($editor_name, $editor_content);
 
-switch ($type)
-{
+switch ($type) {
     case "CMS_HTML":
         $editor_height = getEffectiveSetting("wysiwyg", "tinymce-height-html", false);
 
-		if ($editor_height == false)
-		{
+        if ($editor_height == false) {
             $editor_height = getEffectiveSetting("tinymce", "contenido_height_html", false);
         }
         break;
     case "CMS_HTMLHEAD":
         $editor_height = getEffectiveSetting("wysiwyg", "tinymce-height-head", false);
 
-		if ($editor_height == false)
-		{
+        if ($editor_height == false) {
             $editor_height = getEffectiveSetting("tinymce", "contenido_height_head", false);
         }
         break;
@@ -79,8 +77,7 @@ switch ($type)
         $editor_height = false;
 }
 
-if ($editor_height !== false)
-{
+if ($editor_height !== false) {
     $cTinyMCEEditor->setSetting("height", $editor_height, true);
 }
 
@@ -95,8 +92,7 @@ TODO:
 $currentuser = new User;
 $currentuser->loadUserByUserID($auth->auth["uid"]);
 
-if ($currentuser->getField("wysi") == 1)
-{
+if ($currentuser->getField("wysi") == 1) {
     echo $cTinyMCEEditor->getScripts();
     echo $cTinyMCEEditor->getEditor();
 } else {