package fr.ifremer.dali.ui.swing;
   
   /*
    * #%L
    * Dali :: UI
    * $Id:$
    * $HeadURL:$
    * %%
    * Copyright (C) 2014 - 2015 Ifremer
   * %%
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Affero General Public License as published by
   * the Free Software Foundation, either version 3 of the License, or
   * (at your option) any later version.
   * 
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   * 
   * You should have received a copy of the GNU Affero General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   * #L%
   */
  
  import fr.ifremer.quadrige3.core.dao.technical.Assert;
  import jaxx.runtime.JAXXObject;
  import jaxx.runtime.SwingUtil;
  import jaxx.runtime.awt.visitor.BuildTreeVisitor;
  import jaxx.runtime.awt.visitor.ComponentTreeNode;
  import jaxx.runtime.awt.visitor.GetCompopentAtPointVisitor;
  import jaxx.runtime.swing.help.JAXXHelpBroker;
  import jaxx.runtime.swing.help.JAXXHelpUI;
  import jaxx.runtime.swing.help.JAXXHelpUIHandler;
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  import javax.swing.AbstractButton;
  import java.awt.Component;
  import java.awt.Point;
  import java.awt.event.ActionListener;
  import java.awt.event.MouseEvent;
  
  /**
   * Help broker.
   *
   * @since 1.1
   */
  public class DaliHelpBroker extends JAXXHelpBroker {
  
      /**
       * Logger
       */
      private static final Log LOG = LogFactory.getLog(DaliHelpBroker.class);
  
      /**
       * <p>Constructor for DaliHelpBroker.</p>
       *
       * @param defaultID a {@link java.lang.String} object.
       */
      public DaliHelpBroker(String defaultID) {
          super("dali", "help",
                  defaultID,
                  (JAXXHelpUIHandler) DaliUIContext.getInstance());
      }
  
      /** {@inheritDoc} */
      @Override
      public void prepareUI(JAXXObject c) {
  
          Assert.notNull(c, "parameter c can not be null!");
  
          // l'ui doit avoir un boutton showHelp
          AbstractButton help = getShowHelpButton(c);
  
          if (help != null) {
  
              // attach context to button
              if (LOG.isDebugEnabled()) {
                  LOG.debug("attach context to showhelp button " + c);
              }
              help.putClientProperty(JAXX_CONTEXT_ENTRY, c);
  
              // add tracking action
              ActionListener listener = getShowHelpAction();
              if (LOG.isDebugEnabled()) {
                  LOG.debug("adding tracking action " + listener);
              }
              help.addActionListener(listener);
  
              if (LOG.isDebugEnabled()) {
                  LOG.debug("done for " + c);
              }
          }
      }
  
      /** {@inheritDoc} */
      @Override
      public String findHelpId(Component comp) {
 
         if (comp == null) {
             comp = DaliUIContext.getInstance().getMainUI();
         }
         JAXXHelpUI<?> parentContainer = SwingUtil.getParent(comp, JAXXHelpUI.class);
 
         String result;
         if (parentContainer != null && this != parentContainer.getBroker()) {
 
             JAXXHelpBroker broker = parentContainer.getBroker();
             result = broker.findHelpId(comp);
         } else {
             result = super.findHelpId(comp);
         }
 
         if (result == null) {
             result = "dali.index.help";
         }
 
         return result;
     }
 
     /** {@inheritDoc} */
     @Override
     public Component getDeppestComponent(Component mouseComponent, MouseEvent event) {
         ComponentTreeNode tree = BuildTreeVisitor.buildTree(mouseComponent);
 
         Point point = event.getPoint();
 
         Component component = GetCompopentAtPointVisitor.get(tree, point);
         if (LOG.isDebugEnabled()) {
             LOG.debug("Component at (" + point + "): " + component);
         }
         return component;
     }
 
 }