/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * Licensed under the Apache 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.apache.org/licenses/LICENSE-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 com.intellij.ide.navigationToolbar;

import com.intellij.ide.ui.UISettings;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.PlatformDataKeys;
import com.intellij.openapi.project.DumbAware;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.wm.ex.WindowManagerEx;
import com.intellij.openapi.wm.impl.IdeFrameImpl;
import com.intellij.openapi.wm.impl.IdeRootPane;

/**
 * @author Anna Kozlova
 * @author Konstantin Bulenkov
 */
public class ActivateNavigationBarAction extends AnAction implements DumbAware {
  @Override
  public void actionPerformed(AnActionEvent e) {
    final Project project = CommonDataKeys.PROJECT.getData(e.getDataContext());
    if (project != null && UISettings.getInstance().SHOW_NAVIGATION_BAR){
      final IdeFrameImpl frame = WindowManagerEx.getInstanceEx().getFrame(project);
      final IdeRootPane ideRootPane = ((IdeRootPane)frame.getRootPane());
      final NavBarPanel navBarPanel = (NavBarPanel)ideRootPane.findByName(NavBarRootPaneExtension.NAV_BAR).getComponent();
      navBarPanel.rebuildAndSelectTail(true);
    }
  }

  @Override
  public void update(AnActionEvent e) {
    final Project project = CommonDataKeys.PROJECT.getData(e.getDataContext());
    UISettings settings = UISettings.getInstance();
    final boolean enabled = project != null && settings.SHOW_NAVIGATION_BAR && !settings.PRESENTATION_MODE;
    e.getPresentation().setEnabled(enabled);
  }
}

@@ -20,10 +20,10 @@
 0-20
-09
+14
  Jet
@@ -846,67 +846,8 @@
 ys;%0A
-import com.intellij.openapi.actionSystem.PlatformDataKeys;%0A
 impo
@@ -1083,16 +1083,81 @@
 ootPane;
+%0Aimport org.jetbrains.annotations.NotNull;%0A%0Aimport javax.swing.*;
 %0A%0A/**%0A *
@@ -1336,16 +1336,25 @@
 rformed(
+@NotNull 
 AnAction
@@ -1516,16 +1516,17 @@
 ION_BAR)
+ 
 %7B%0A      
@@ -1641,17 +1641,16 @@
 tPane = 
-(
 (IdeRoot
@@ -1673,25 +1673,24 @@
 otPane()
-)
 ;%0A      
 final Na
@@ -1685,53 +1685,31 @@
     
-final NavBarPanel navBarPanel = (NavBarPanel)
+JComponent component = 
 ideR
@@ -1772,24 +1772,136 @@
 omponent();%0A
+      if (component instanceof NavBarPanel) %7B%0A        final NavBarPanel navBarPanel = (NavBarPanel)component;%0A  
       navBar
@@ -1934,16 +1934,24 @@
 (true);%0A
+      %7D%0A
     %7D%0A  
@@ -1986,16 +1986,25 @@
  update(
+@NotNull 
 AnAction

fix CCE