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   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
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   *
   *    https://www.apache.org/licenses/LICENSE-2.0
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  package org.apache.cayenne.modeler.graph.action;
  
  import java.awt.event.ActionEvent;
  
  import javax.swing.Action;
  import javax.swing.Icon;
  
  import org.apache.cayenne.configuration.ConfigurationNode;
  import org.apache.cayenne.map.Entity;
  import org.apache.cayenne.modeler.Application;
  import org.apache.cayenne.modeler.action.FindAction;
  import org.apache.cayenne.modeler.graph.GraphBuilder;
  import org.apache.cayenne.modeler.util.CayenneAction;
  
  /**
   * Action that displays one of the objects in main tree, and then fires another action (if specified)
   */
  public class EntityDisplayAction extends CayenneAction {
  
      /**
       * Action that will be performed after selection
       */
      private CayenneAction delegate;
  
      private final GraphBuilder builder;
  
      public EntityDisplayAction(GraphBuilder builder) {
          super("Show", Application.getInstance());
          this.builder = builder;
          init();
      }
  
      public EntityDisplayAction(GraphBuilder builder, CayenneAction delegate) {
          super((String) delegate.getValue(Action.NAME), Application.getInstance());
          this.delegate = delegate;
          this.builder = builder;
          init();
      }
  
      private void init() {
          setEnabled(true);
  
          // Create icon manually, because at creation of super object delegate is null
          Icon icon = createIcon();
          if (icon != null) {
              super.putValue(Action.SMALL_ICON, icon);
          }
      }
  
      @Override
      public void performAction(ActionEvent e) {
          if (display()) {
              if (delegate != null) {
                  delegate.performAction(e);
              }
          }
      }
  
      private boolean display() {
          Entity<?,?,?> entity = builder.getSelectedEntity();
          if (entity == null) {
              return false;
          }
  
          // reusing logic from FindAction
          FindAction.jumpToResult(new FindAction.SearchResultEntry(entity, entity.getName()));
          return true;
      }
  
      @Override
      public String getIconName() {
          if (delegate != null) {
              return delegate.getIconName();
          }
          return null;
      }
  
      @Override
      public boolean enableForPath(ConfigurationNode object) {
          return builder.getSelectedEntity() != null;
      }
  }
  