package org.kuali.student.common.ui.client.configurable.mvc.binding;

 import java.util.ArrayList;

 import java.util.Iterator;

 import org.kuali.student.common.ui.client.mvc.DataModel;

 import org.kuali.student.common.ui.client.widgets.ListOfStringWidget;

 import org.kuali.student.core.assembly.data.Data;

 import org.kuali.student.core.assembly.data.QueryPath;

 import org.kuali.student.core.assembly.data.Data.DataValue;

 import org.kuali.student.core.assembly.data.Data.Property;

 /**

  * Model widget binding for list of strings.  This binding only works with data that is known

  * to be a list of strings.

  * 

  * @author Kuali Student Team

  *

  */

 public class ListOfStringBinding implements ModelWidgetBinding<ListOfStringWidget> {

         @Override

         public void setModelValue(ListOfStringWidget widget, DataModel model, String path) {

                 Data data = new Data();

                 DataValue listData = new Data.DataValue(data);

                 for(String value:widget.getStringValues()){

                         data.add(value);

                 }

                 model.set(QueryPath.parse(path), listData);

         }

         @Override

         public void setWidgetValue(ListOfStringWidget widget, DataModel model, String path) {

                 Data data = model.get(path);

                 ArrayList<String> values = new ArrayList<String>();

                 if(data!=null){

                         Iterator<Property> iter = data.realPropertyIterator();

                         while(iter.hasNext()){

                                 Property prop = iter.next();

                                 String value = prop.getValue();

                                 values.add(value);

                         }

                 }

                 widget.setStringValues(values);

         }

 }