Index: editors/ckeditor.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/wysiwyg/editors/ckeditor.inc,v
retrieving revision 1.4
diff -u -p -r1.4 ckeditor.inc
--- editors/ckeditor.inc	23 Oct 2009 02:11:33 -0000	1.4
+++ editors/ckeditor.inc	29 Oct 2009 03:29:42 -0000
@@ -24,7 +24,7 @@ function wysiwyg_ckeditor_editor() {
       'src' => array(
         'title' => 'Source',
          'files' => array(
-          'ckeditor_source.js' => array('preprocess' => FALSE),
+           'ckeditor_source.js' => array('preprocess' => FALSE),
         ),
       ),
     ),
@@ -92,15 +92,20 @@ function wysiwyg_ckeditor_version($edito
 function wysiwyg_ckeditor_themes($editor, $profile) {
   // @todo Skins are not themes but this will do for now.
   $path = $editor['library path'] . '/skins/';
-  $dir_handle = @opendir($path) or drupal_set_message('Unable to open ' . $path, $type = 'error');
-  $themes = array();  
-  while ($file = readdir($dir_handle)) {
-    if($file!="." && $file!=".." && $file!="CVS" && $file!=".svn") {
-      $themes[] = $file;
+  $dir_handle = @opendir($path);
+  if ($dir_handle) {
+    $themes = array();  
+    while ($file = readdir($dir_handle)) {
+      if ($file != '.' && $file != '..' && $file != 'CVS' && $file != '.svn') {
+        $themes[] = $file;
+      }
     }
+    closedir($dir_handle);
+    return $themes;
+  }
+  else {
+    return array('default');
   }
-  closedir($dir_handle);
-  return $themes;
 }
 
 /**
@@ -122,7 +127,7 @@ function wysiwyg_ckeditor_settings($edit
     'baseHref' => base_path(),
     'width' => '100%',
     'height' => 420,
-    // Skin is not really the same as theme.
+    // @todo Do not use skins as themes and add separate skin handling.
     'theme' => 'default',
     'skin' => $theme,
     // By default, CKeditor converts most characters into HTML entities. Since
@@ -162,15 +167,12 @@ function wysiwyg_ckeditor_settings($edit
     }
   }
 
-  // Language
   if (isset($config['language'])) {
     $settings['language'] = $config['language'];
   }
-  // Resizing button
   if (isset($config['resizing'])) {
     $settings['resize_enabled'] = $config['resizing'];
   }
-  //Toolbar location
   if (isset($config['toolbar_loc'])) {
     $settings['toolbarLocation'] = $config['toolbar_loc'];
   }
@@ -270,10 +272,6 @@ function wysiwyg_ckeditor_proxy_plugin_s
 
 /**
  * Return internal plugins for this editor; semi-implementation of hook_wysiwyg_plugin().
- *
- * Excluded native plugins: About, Button, Checkbox, Form, HiddenField,
- * ImageButton, NewPage, PageBreak, Print, Radio, Select, Save, TextField,
- * Textarea, Templates.
  */
 function wysiwyg_ckeditor_plugins($editor) {
   $plugins = array(
Index: editors/js/ckeditor-3.0.js
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/wysiwyg/editors/js/ckeditor-3.0.js,v
retrieving revision 1.5
diff -u -p -r1.5 ckeditor-3.0.js
--- editors/js/ckeditor-3.0.js	23 Oct 2009 02:11:33 -0000	1.5
+++ editors/js/ckeditor-3.0.js	29 Oct 2009 03:29:42 -0000
@@ -36,13 +36,16 @@ Drupal.wysiwyg.editor.attach.ckeditor = 
   CKEDITOR.config.customConfig = '';
 
   settings.on = {
-    // Event handlers.
     instanceReady: function(ev) {
       var editor = ev.editor;
+      // Get a list of block, list and table tags from CKEditor's XHTML DTD.
+      // See http://docs.cksource.com/CKEditor_3.x/Developers_Guide/Output_Formatting.
       var dtd = CKEDITOR.dtd;
-      var tags = CKEDITOR.tools.extend( {}, dtd.$block, dtd.$listItem, dtd.$tableContent );
+      var tags = CKEDITOR.tools.extend({}, dtd.$block, dtd.$listItem, dtd.$tableContent);
+      // Set source formatting rules for each listed tag except <pre>.
+      // Linebreaks can be inserted before or after opening and closing tags.
       if (settings.apply_source_formatting) {
-        // Mimic FCKeditor output.
+        // Mimic FCKeditor output, by breaking lines between tags.
         for (var tag in tags) {
           if (tag == 'pre') {
             continue;
@@ -58,7 +61,7 @@ Drupal.wysiwyg.editor.attach.ckeditor = 
       }
       else {
         // No indents or linebreaks;
-        for (var key in tags) {
+        for (var tag in tags) {
           if (tag == 'pre') {
             continue;
           }
@@ -76,7 +79,7 @@ Drupal.wysiwyg.editor.attach.ckeditor = 
     pluginsLoaded: function(ev) {
       // Override the conversion methods to let Drupal plugins modify the data.
       var editor = ev.editor;
-      if (editor.dataProcessor) {
+      if (editor.dataProcessor && Drupal.settings.wysiwyg.plugins[params.format]) {
         editor.dataProcessor.toHtml = CKEDITOR.tools.override(editor.dataProcessor.toHtml, function(originalToHtml) {
           // Convert raw data for display in WYSIWYG mode.
           return function(data, fixForBody) {