/**

  * 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.lum.lu.ui.tools.client.widgets;

 import java.util.ArrayList;

 import java.util.List;

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

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

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

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

 import org.kuali.student.common.ui.client.widgets.layout.VerticalFlowPanel;

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

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

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

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

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

 public class WarningDialog {

     private KSLightBox dialog = new KSLightBox();

     private KSLabel titleLabel = null;

     private KSLabel messageLabel = null;

     private KSLabel questionLabel = null;

     private VerticalFlowPanel layout = new VerticalFlowPanel();

     private List<Callback<Boolean>> confirmationCallbacks = new ArrayList<Callback<Boolean>>();

     private KSButton affirmativeButton;

     private KSButton negativeButton;

     public WarningDialog(String title, String message, String question,

             String affirmativeChoice, String negativeChoice) {

         titleLabel = new KSLabel(title);

         messageLabel = new KSLabel(message);

         questionLabel = new KSLabel(question);

         affirmativeButton = new KSButton(affirmativeChoice);

         negativeButton = new KSButton(negativeChoice);

         layout.add(titleLabel);

         layout.add(createSpacerPanel("0px","20px"));

         layout.add(messageLabel);

         layout.add(createSpacerPanel("0px","50px"));

         layout.add(questionLabel);

         HorizontalPanel buttonsPanel = new HorizontalPanel();

         buttonsPanel.add(affirmativeButton);

         buttonsPanel.add(createSpacerPanel("10px", "0px"));

         buttonsPanel.add(negativeButton);

         layout.add(createSpacerPanel("0px","5px"));

         layout.add(buttonsPanel);

         affirmativeButton.addClickHandler(new ClickHandler() {

             @Override

             public void onClick(ClickEvent event) {

                 if (confirmationCallbacks != null) {

                     for (Callback<Boolean> confirmationCallback : confirmationCallbacks) {

                         confirmationCallback.exec(Boolean.TRUE);

                     }

                 }

             }

         });

         negativeButton.addClickHandler(new ClickHandler() {

             @Override

             public void onClick(ClickEvent event) {

                 if (confirmationCallbacks != null) {

                     for (Callback<Boolean> confirmationCallback : confirmationCallbacks) {

                         confirmationCallback.exec(Boolean.FALSE);

                     }

                 }

             }

         });

         dialog.setWidget(layout);

     }

     private Panel createSpacerPanel(String width, String height) {

         Panel spacerPanel = new SimplePanel();

         spacerPanel.setWidth(width);

         spacerPanel.setHeight(height);

         return spacerPanel;

     }

     public void show() {

         dialog.show();

     }

     public void hide() {

         dialog.hide();

     }

     public void addConfirmationCallback(Callback<Boolean> confirmationCallback) {

         confirmationCallbacks.add(confirmationCallback);

     }

 }