/**

  * 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.ArrayList;

 import java.util.List;

 import org.kuali.student.common.ui.client.widgets.KSButtonAbstract.ButtonStyle;

 import org.kuali.student.common.ui.client.widgets.menus.KSListPanel;

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

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

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

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

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

 public class KSActionItemList extends Composite{

         private KSLabel title = new KSLabel();

         private KSListPanel listLayout = new KSListPanel();

         private List<ActionItem> actionItems = new ArrayList<ActionItem>();

         public static enum ListLocation{TOP, BOTTOM}

         private static class ActionItem{

                 private String text;

                 private String shortDesc;

                 private ClickHandler handler;

                 private KSButton link;

                 private KSLabel desc;

                 private HorizontalPanel layout = new HorizontalPanel();

                 public ActionItem(String text, String shortDesc,

                                 ClickHandler handler) {

                         link.addStyleName("KS-ActionItemList-Link");

                         desc.addStyleName("KS-ActionItemList-Desc");

                         this.text = text;

                         this.shortDesc = shortDesc;

                         this.handler = handler;

                         link = new KSButton(text, ButtonStyle.DEFAULT_ANCHOR);

                         desc =  new KSLabel(shortDesc);

                 }

                 public String getText() {

                         return text;

                 }

                 public void setText(String text) {

                         this.text = text;

                 }

                 public String getShortDesc() {

                         return shortDesc;

                 }

                 public void setShortDesc(String shortDesc) {

                         this.shortDesc = shortDesc;

                 }

                 public ClickHandler getHandler() {

                         return handler;

                 }

                 public void setHandler(ClickHandler handler) {

                         this.handler = handler;

                 }

                 public Widget getWidget(){

                         String id = HTMLPanel.createUniqueId();

                     HTMLPanel panel = new HTMLPanel("<a href='javascript:return false;' id='" + id + "'></a>");

                     panel.add(link, id);

                         link.setText(text);

                         link.addClickHandler(handler);

                         desc.setText(shortDesc);

                         layout.clear();

                         layout.add(panel);

                         layout.add(desc);

                         return layout;

                 }

         }

         public KSActionItemList(String title){

                 this.title.setText(title);

                 listLayout.addStyleName("KS-ActionItemList-ListPanel");

                 this.title.addStyleName("KS-ActionItemList-Title");

                 redrawList();

                 this.initWidget(listLayout);

         }

         public KSActionItemList(String title, List<ActionItem> items){

                 this.title.setText(title);

                 listLayout.addStyleName("KS-ActionItemList-ListPanel");

                 this.title.addStyleName("KS-ActionItemList-Title");

                 actionItems = items;

                 redrawList();

                 this.initWidget(listLayout);

         }

         public void redrawList(){

                 listLayout.clear();

                 if(!title.getText().isEmpty()){

                         listLayout.add(title);

                 }

                 for(ActionItem item: actionItems){

                         listLayout.add(item.getWidget());

                 }

         }

         public void setTitle(String title){

                 this.title.setText(title);

         }

         public void add(ActionItem item, ListLocation location){

                 if(location == ListLocation.TOP){

                         actionItems.add(0, item);

                 }

                 else{

                         actionItems.add(item);

                 }

                 //redrawList();

         }

         public void add(String text, String shortDesc, ClickHandler handler, ListLocation location){

                 ActionItem item = new ActionItem(text, shortDesc, handler);

                 if(location == ListLocation.TOP){

                         actionItems.add(0, item);

                 }

                 else{

                         actionItems.add(item);

                 }

                 redrawList();

         }

         public void setActionItems(List<ActionItem> items){

                 actionItems = items;

                 redrawList();

         }

         public void remove(ActionItem item){

                 actionItems.remove(item);

                 redrawList();

         }

         public void removeByText(String text){

                 for(ActionItem item: actionItems){

                         if(text.equals(item.getText())){

                                 actionItems.remove(item);

                                 break;

                         }

                 }

                 redrawList();

         }

 }