changed setModel to delegate to ListboxModelDynamicMethods

ZkGrailsPlugin.groovy

@@ -154,13 +154,8 @@ support to Grails applications.
             }
         }
 
-        org.zkoss.zul.Listbox.metaClass.setModel = { java.util.List list ->
-        	if(delegate.getModel()!=null) {
-            	delegate.getModel().clear()
-            	delegate.getModel().addAll(list)
-        	} else {        		
-        		delegate.setModel(new BindingListModelList(list, false))
-        	}
+        org.zkoss.zul.Listbox.metaClass.setModel = { java.util.List list ->            
+            ListboxModelDynamicMethods.setModel(delegate, list)
         }
 
         org.zkoss.zul.Listbox.metaClass.getModel = { ->

src/java/org/zkoss/zkgrails/ListboxModelDynamicMethods.java

@@ -1,9 +1,50 @@
+/* ListboxModelDynamicMethods.java
+
+Copyright (C) 2009 Chanwit Kaewkasi
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
 package org.zkoss.zkgrails;
 
+import org.zkoss.zkgrails.*;
+import org.zkoss.zkplus.databind.BindingListModelList;
+import org.zkoss.zul.Listbox;
+
 public class ListboxModelDynamicMethods {
-
-    ListboxModelDynamicMethods (arguments) {
-        // expression
+
+    public static void setModel(Listbox delegate, Object list) {
+        if(list instanceof java.util.List) {
+            Object model = delegate.getModel();
+            if(model != null) {
+                if(model instanceof BindingListModelList) {
+                    BindingListModelList blml = (BindingListModelList)model;
+                    blml.clear();
+                    blml.addAll((java.util.List)list);
+                    return;
+                }
+            } else {
+                delegate.setModel(new BindingListModelList((java.util.List)list, false));
+                return;
+            }
+        }
+
+        if (list instanceof org.zkoss.zul.GroupsModel) {
+            delegate.setModel((org.zkoss.zul.GroupsModel)list);
+        } else {
+            delegate.setModel((org.zkoss.zul.ListModel)list);
+        }
     }
-
 }