/**
    * Copyright 2005-2013 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.opensource.org/licenses/ecl2.php
    *
   * 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.rice.krad.uif.widget;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.krad.datadictionary.parse.BeanTag;
  import org.kuali.rice.krad.datadictionary.parse.BeanTagAttribute;
  import org.kuali.rice.krad.uif.UifConstants;
  import org.kuali.rice.krad.uif.component.ClientSideState;
  import org.kuali.rice.krad.uif.component.Component;
  import org.kuali.rice.krad.uif.container.TabGroup;
  import org.kuali.rice.krad.uif.view.View;
  
  /**
   * Widget used for configuring tab options, use componentOptions for most options.
   * See http://jqueryui.com/demos/tabs/ for usable options
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  @BeanTag(name = "tabs-bean", parent = "Uif-Tabs")
  public class Tabs extends WidgetBase {
      private static final long serialVersionUID = 2L;
  
      @ClientSideState(variableName = "activeTab")
      private String defaultActiveTabId;
  
      private UifConstants.Position position = UifConstants.Position.TOP;
  
      public Tabs() {
          super();
      }
  
      /**
       * The following is performed:
       *
       * <ul>
       * <li>If the active tab id is configured, set the active plugin option</li>
       * </ul>
       */
      @Override
      public void performFinalize(View view, Object model, Component component) {
          super.performFinalize(view, model, component);
  
          if (!(component instanceof TabGroup)) {
              throw new RuntimeException("Parent for tabs widget should be tab group, not " + component.getClass());
          }
  
          TabGroup tabGroup = (TabGroup) component;
  
          if (StringUtils.isNotBlank(defaultActiveTabId)) {
              // need to find the index of the item to set the plugin active option
              int index = 0;
  
              boolean found = false;
              for (Component tabComponent : tabGroup.getItems()) {
                  if (StringUtils.equals(defaultActiveTabId, tabComponent.getId())) {
                      found = true;
  
                      break;
                  }
  
                  index += 1;
              }
  
              // if active tab index is set, add the plugin active option
              if (found) {
                  Map<String, String> oTemplateOptions = this.getTemplateOptions();
                  
                  if (oTemplateOptions == null) {
                      setTemplateOptions(oTemplateOptions = new HashMap<String, String>());
                  }
                  
                  oTemplateOptions.put(UifConstants.TabOptionKeys.ACTIVE, Integer.toString(index));
              }
          }
      }
  
      /**
       * Id for the group within the tab group that should be active (shown first), by default the first
       * group is active
       *
       * @return id for the group within the tab group that should be initially active
       */
     @BeanTagAttribute(name = "defaultActiveTabId")
     public String getDefaultActiveTabId() {
         return defaultActiveTabId;
     }
 
     /**
      * Setter for the active group id
      *
      * @param defaultActiveTabId
      */
     public void setDefaultActiveTabId(String defaultActiveTabId) {
         this.defaultActiveTabId = defaultActiveTabId;
     }
 
     /**
      * The position the tabs will appear related to the group, options are TOP, BOTTOM, RIGHT, or LEFT
      *
      * @return position for tabs
      */
     @BeanTagAttribute(name = "position")
     public UifConstants.Position getPosition() {
         return position;
     }
 
     /**
      * Setter for the tabs position
      *
      * @param position
      */
     public void setPosition(UifConstants.Position position) {
         this.position = position;
     }
 
     /**
      * @see org.kuali.rice.krad.uif.component.ComponentBase#copy()
      */
     @Override
     protected <T> void copyProperties(T component) {
         super.copyProperties(component);
         Tabs tabsCopy = (Tabs) component;
         tabsCopy.setDefaultActiveTabId(this.getDefaultActiveTabId());
         tabsCopy.setPosition(this.getPosition());
     }
 }