Ticket #3250: 3250.patch

_source/plugins/colorbutton/plugin.js

@@ -91 +91 @@
 
                                                 var style = new CKEDITOR.style( config['colorButton_' + type + 'Style'], { color : color || '#000' } );
 
+                                                editor.fire( 'saveSnapshot' );
                                                 if ( color )
                                                         style.apply( editor.document );
                                                 else

_source/plugins/font/plugin.js

@@ -55 +55 @@
                                 onClick : function( value )
                                 {
                                         editor.focus();
+                                        editor.fire( 'saveSnapshot' );
 
                                         if ( saveRanges )
                                         {

_source/plugins/format/plugin.js

@@ -53 +53 @@
                                 onClick : function( value )
                                 {
                                         editor.focus();
+                                        editor.fire( 'saveSnapshot' );
 
                                         if ( saveRanges )
                                         {

_source/plugins/stylescombo/plugin.js

@@ -93 +93 @@
                                         onClick : function( value )
                                         {
                                                 editor.focus();
+                                                editor.fire( 'saveSnapshot' );
 
                                                 var style = styles[ value ],
                                                         selection = editor.getSelection();

_source/plugins/undo/plugin.js

@@ -63 +63 @@
                         editor.on( 'beforeCommandExec', recordCommand );
                         editor.on( 'afterCommandExec', recordCommand );
 
+                        // Save snapshots before doing custom changes.
+                        editor.on( 'saveSnapshot', function()
+                                {
+                                        undoManager.save();
+                                });
+
                         // Make the undo manager available only in wysiwyg mode.
                         editor.on( 'mode', function()
                                 {