Ticket #6141: 6141_4.patch

_source/plugins/indent/plugin.js

@@ -256 +256 @@
                                 }
                                 else
                                 {
+                                        var indentOffset = editor.config.indentOffset;
                                         var indentCssProperty = getIndentCssProperty( element );
                                         var currentOffset = parseInt( element.getStyle( indentCssProperty ), 10 );
                                         if ( isNaN( currentOffset ) )
                                                 currentOffset = 0;
-                                        currentOffset += ( self.name == 'indent' ? 1 : -1 ) * editor.config.indentOffset;
+                                        currentOffset += ( self.name == 'indent' ? 1 : -1 ) * indentOffset;
 
-                                        if ( currentOffset < 0 )
+                                        if ( currentOffset < 0 || !indentOffset )
                                                 return false;
 
-                                        currentOffset = Math.max( currentOffset, 0 );
-                                        currentOffset = Math.ceil( currentOffset / editor.config.indentOffset ) * editor.config.indentOffset;
+                                        currentOffset = Math.ceil( currentOffset / indentOffset ) * indentOffset;
                                         element.setStyle( indentCssProperty, currentOffset ? currentOffset + editor.config.indentUnit : '' );
                                         if ( element.getAttribute( 'style' ) === '' )
                                                 element.removeAttribute( 'style' );