/**

  * 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.widgets;

 import java.util.List;

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

 import org.kuali.student.common.ui.client.widgets.impl.KSDropDownImpl;

 import org.kuali.student.common.ui.client.widgets.list.KSSelectItemWidgetAbstract;

 import org.kuali.student.common.ui.client.widgets.list.ListItems;

 import org.kuali.student.common.ui.client.widgets.list.SelectionChangeHandler;

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

 import com.google.gwt.event.dom.client.BlurHandler;

 import com.google.gwt.event.dom.client.FocusHandler;

 import com.google.gwt.event.shared.HandlerRegistration;

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

 /**

  * KSDropDown wraps gwt Listbox in a KSSelectItemWidgetAbstract. This provides  

  * the same basic functionality as a listbox, but allows it to be interchangable

  * with other select item widget implementations.

  * 

  * @author Kuali Student Team

  *

  */

 public class KSDropDown extends KSSelectItemWidgetAbstract{ 

     KSSelectItemWidgetAbstract dropDown = GWT.create(KSDropDownImpl.class);

     /**

      * This constructs a KSDropDown that wraps an impl

      * 

      */    

         public KSDropDown(){

             this.initWidget(dropDown);

         }

     /**

      * Select an item whose text equals the name passed in.

      * 

      * @param id of the item to be selected.

      */

     @Override

     public void selectItem(String id) {

         dropDown.selectItem(id);       

     }

     /**

      * @see org.kuali.student.common.ui.client.widgets.list.KSSelectItemWidgetAbstract#deSelectItem(java.lang.String)

      */

     @Override

     public void deSelectItem(String id) {       

         dropDown.deSelectItem(id);

     }

     /**

      * @see org.kuali.student.common.ui.client.widgets.list.KSSelectItemWidgetAbstract#getSelectedItems()

      */

     @Override

     public List<String> getSelectedItems() {

         return dropDown.getSelectedItems();

     }

     /**

      * @see org.kuali.student.common.ui.client.widgets.list.KSSelectItemWidgetAbstract#getSelectedItem()

      */

     @Override

     public String getSelectedItem() {

         return dropDown.getSelectedItem();

     }

     /**

      * @see org.kuali.student.common.ui.client.widgets.list.KSSelectItemWidgetAbstract#onLoad()

      */

     @Override

     public void onLoad() {

         dropDown.onLoad();

     }

     /**

      * @see org.kuali.student.common.ui.client.widgets.list.KSSelectItemWidgetAbstract#setListItems(org.kuali.student.common.ui.client.widgets.list.ListItems)

      */

     @Override

     public void setListItems(ListItems listItems) {

         dropDown.setListItems(listItems);

     }

     /**

      * @see org.kuali.student.common.ui.client.widgets.list.KSSelectItemWidgetAbstract#addSelectionChangeHandler(org.kuali.student.common.ui.client.widgets.list.SelectionChangeHandler)

      */

     public HandlerRegistration addSelectionChangeHandler(SelectionChangeHandler selectionHandler) {

         return dropDown.addSelectionChangeHandler(selectionHandler);

     }

     /**

      * @see org.kuali.student.common.ui.client.widgets.list.KSSelectItemWidgetAbstract#getListItems()

      */

     public ListItems getListItems() {

         return dropDown.getListItems();

     }

     /**

      * @see org.kuali.student.common.ui.client.widgets.list.KSSelectItemWidgetAbstract#getName()

      */

     public String getName() {

         return dropDown.getName();

     }

     /**

      * @see org.kuali.student.common.ui.client.widgets.list.KSSelectItemWidgetAbstract#setName(java.lang.String)

      */

     @Override

     public void setName(String name) {

         dropDown.setName(name);

     }

     public void setEnabled(boolean b) {

         dropDown.setEnabled(b);

     }

     @Override

     public boolean isEnabled() {

         return dropDown.isEnabled();

     }

     public boolean isBlankFirstItem() {

             if (dropDown instanceof KSDropDownImpl){

                     return ((KSDropDownImpl)dropDown).isBlankFirstItem();

             } else {

                     return false;

             }

     }

     /** 

      * Use when the first item in list should be blank. If set, it must be called before call to setListItems()

      * 

      * @param blankFirstItem

      */

     public void setBlankFirstItem(boolean blankFirstItem) {

             if (dropDown instanceof KSDropDownImpl){

                     ((KSDropDownImpl)dropDown).setBlankFirstItem(blankFirstItem);

             }

     }

     @Override

     public void redraw() {

         dropDown.redraw();        

     }

         @Override

         public HandlerRegistration addFocusHandler(FocusHandler handler) {

                 return dropDown.addFocusHandler(handler);

         }

         @Override

         public HandlerRegistration addBlurHandler(BlurHandler handler) {

                 return dropDown.addBlurHandler(handler);

         }

     @Override

     public void addWidgetReadyCallback(Callback<Widget> callback) {

         dropDown.addWidgetReadyCallback(callback);

     }

     @Override

     public boolean isInitialized() {

         return dropDown.isInitialized();

     }

     @Override

     public void setInitialized(boolean initialized) {

         dropDown.setInitialized(initialized);

     }

     @Override

     public void clear() {

         dropDown.clear();        

     }

 }