Ticket #2913: 2913.patch

_source/plugins/button/plugin.js

@@ -116 +116 @@
                         }
                 };
 
+                var index = CKEDITOR.ui.button._.instances.push( instance ) - 1;
+                
+                var classes = 'cke_button';
+                
                 // Get the command name.
                 var command = this.command;
 
@@ -130 +134 @@
                                         {
                                                 this.setState( command.state );
                                         }, this);
+
+                                classes += ' cke_' + (
+                                        command.state == CKEDITOR.TRISTATE_ON ? 'on' :
+                                        command.state == CKEDITOR.TRISTATE_DISABLED ? 'disabled' :
+                                        'off' );
                         }
                 }
 
-                var index = CKEDITOR.ui.button._.instances.push( instance ) - 1;
+                if ( this.className )
+                        classes += ' ' + this.className;
 
                 output.push(
                         '<a id="', id, '"' +
-                                ' class="cke_button ', this.className, '" href="javascript:void(\'', ( this.label || '' ).replace( "'", '' ), '\')"' +
+                                ' class="', classes, '" href="javascript:void(\'', ( this.label || '' ).replace( "'", '' ), '\')"' +
                                 ' title="', this.title, '"' +
                                 ' tabindex="-1"' +
                                 ' hidefocus="true"' );