Ticket #3621: 3621_2.patch

_source/plugins/about/plugin.js

@@ -9 +9 @@
         {
                 var command = editor.addCommand( 'about', new CKEDITOR.dialogCommand( 'about' ) );
                 command.modes = { wysiwyg:1, source:1 };
+                command.canUndo = false;
 
                 editor.ui.addButton( 'About',
                         {

_source/plugins/clipboard/plugin.js

@@ -60 +60 @@
         var cutCopyCmd = function( type )
         {
                 this.type = type;
+                this.canUndo = ( this.type == 'cut' );          // We can't undo copy to clipboard.
         };
 
         cutCopyCmd.prototype =

_source/plugins/find/plugin.js

@@ -13 +13 @@
                                 label : editor.lang.findAndReplace.find,
                                 command : 'find'
                         });
-                editor.addCommand( 'find', new CKEDITOR.dialogCommand( 'find' ) );
+                var findCommand = editor.addCommand( 'find', new CKEDITOR.dialogCommand( 'find' ) );
+                findCommand.canUndo = false;
 
                 editor.ui.addButton( 'Replace',
                         {
                                 label : editor.lang.findAndReplace.replace,
                                 command : 'replace'
                         });
-                editor.addCommand( 'replace', new CKEDITOR.dialogCommand( 'replace' ) );
+                var replaceCommand = editor.addCommand( 'replace', new CKEDITOR.dialogCommand( 'replace' ) );
+                replaceCommand.canUndo = false;
 
                 CKEDITOR.dialog.add( 'find',    this.path + 'dialogs/find.js' );
                 CKEDITOR.dialog.add( 'replace', this.path + 'dialogs/find.js' );

_source/plugins/maximize/plugin.js

@@ -241 +241 @@
 
                                                 savedSelection = savedScroll = null;
                                                 savedState = this.state;
-                                        }
+                                        },
+                                        canUndo : false
                                 } );
 
                         editor.ui.addButton( 'Maximize',

_source/plugins/preview/plugin.js

@@ -12 +12 @@
         var previewCmd =
         {
                 modes : { wysiwyg:1, source:1 },
-
+                canUndo : false,
                 exec : function( editor )
                 {
                         var sHTML,

_source/plugins/print/plugin.js

@@ -36 +36 @@
                 else
                         editor.document.$.execCommand( "Print" );
         },
+        canUndo : false,
         modes : { wysiwyg : !( CKEDITOR.env.opera ) }           // It is imposible to print the inner document in Opera.
 };

_source/plugins/selection/plugin.js

@@ -82 +82 @@
                                 case 'source' :
                                         // TODO
                         }
-                }
+                },
+                canUndo : false
         };
 
         CKEDITOR.plugins.add( 'selection',

_source/plugins/showblocks/plugin.js

@@ -110 +110 @@
                 init : function( editor )
                 {
                         var command = editor.addCommand( 'showblocks', commandDefinition );
+                        command.canUndo = false;
 
                         if ( editor.config.startupOutlineBlocks )
                                 command.setState( CKEDITOR.TRISTATE_ON );