Ticket #3621: 3621.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

@@ -86 +86 @@
         {
                 init : function( editor )
                 {
-                        editor.addCommand( pluginName, previewCmd );
+                        var command = editor.addCommand( pluginName, previewCmd );
+                        command.canUndo = false;
                         editor.ui.addButton( 'Preview',
                                 {
                                         label : editor.lang.preview,

_source/plugins/print/plugin.js

@@ -15 +15 @@
 
                 // Register the command.
                 var command = editor.addCommand( pluginName, CKEDITOR.plugins.print );
+                command.canUndo = false;
 
                 // Register the toolbar button.
                 editor.ui.addButton( 'Print',

_source/plugins/selection/plugin.js

@@ -221 +221 @@
                                         }
                                 });
 
-                        editor.addCommand( 'selectAll', selectAllCmd );
+                        var command = editor.addCommand( 'selectAll', selectAllCmd );
+                        command.canUndo = false;
                         editor.ui.addButton( 'SelectAll',
                                 {
                                         label : editor.lang.selectAll,

_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 );