/**

  * Copyright 2010 The Kuali Foundation Licensed under the

  * Educational Community License, Version 2.0 (the "License"); you may

  * not use this file except in compliance with the License. You may

  * obtain a copy of the License at

  *

  * http://www.osedu.org/licenses/ECL-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an "AS IS"

  * BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express

  * or implied. See the License for the specific language governing

  * permissions and limitations under the License.

  */

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

 import java.util.Date;

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

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

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

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

 import com.google.gwt.core.client.GWT;

 import com.google.gwt.user.client.ui.HasValue;

 public class HasValueBinding extends ModelWidgetBindingSupport<HasValue> {

     public static HasValueBinding INSTANCE = new HasValueBinding();

     private HasValueBinding() {}

     @Override

     public void setModelValue(HasValue object, DataModel model, String path) {

         QueryPath qPath = QueryPath.parse(path);

         Object value = object.getValue();

         if (!nullsafeEquals(model.get(qPath), value)) {

             setDirtyFlag(model, qPath);

         }

         // TODO: Type checking to ensure that the value type of widget matches model defintion

         if (value instanceof String) {

             model.set(qPath, (String) value);

         } else if (value instanceof Character) {

             model.set(qPath, value.toString());

         } else if (value instanceof Integer) {

             model.set(qPath, (Integer) value);

         } else if (value instanceof Long) {

             model.set(qPath, (Long) value);

         } else if (value instanceof Float) {

             model.set(qPath, (Float) value);

         } else if (value instanceof Double) {

             model.set(qPath, (Double) value);

         } else if (value instanceof Byte) {

             model.set(qPath, ((Byte) value).intValue());

         } else if (value instanceof Boolean) {

             model.set(qPath, (Boolean) value);

         } else if (value instanceof Date) {

             model.set(qPath, (Date) value);

         } else if (value instanceof Data.Value){

                 model.set(qPath, (Data.Value) value);

         } else if (value == null){

                 String s = null;

                 model.set(qPath, s);

         }

     }

     @Override

     public void setWidgetValue(HasValue object, DataModel model, String path) {

         QueryPath qPath = QueryPath.parse(path);

         Object value = model.get(qPath);

         if (value != null && object != null) {

             object.setValue(value);

         } else if (object != null) {

             try {

                     if (object instanceof KSCheckBox) {

                             object.setValue(false);

                     } else {

                             object.setValue("");

                     }

             } catch (RuntimeException e) {

                 GWT.log("Warning: Ignoring error attempting to setValue for " + object.getClass().getName(), e);

             }

         }

     }

 }