net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpdt/internal/ui/actions/ActionUtil.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2004 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.ui.actions;
  12
  13 import net.sourceforge.phpdt.core.IJavaElement;
  14 import net.sourceforge.phpdt.core.IJavaProject;
  15 //import net.sourceforge.phpdt.core.IPackageFragment;
  16 //import net.sourceforge.phpdt.core.IPackageFragmentRoot;
  17 //import net.sourceforge.phpdt.internal.corext.refactoring.util.ResourceUtil;
  18 //import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  19 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  20 import net.sourceforge.phpeclipse.phpeditor.PHPEditor;
  21 //import net.sourceforge.phpeclipse.ui.WebUI;
  22
  23 //import org.eclipse.core.resources.IFolder;
  24 import org.eclipse.core.resources.IProject;
  25 import org.eclipse.core.resources.IProjectNature;
  26 //import org.eclipse.core.resources.IResource;
  27 import org.eclipse.core.runtime.CoreException;
  28 import org.eclipse.jface.dialogs.MessageDialog;
  29 import org.eclipse.swt.widgets.Shell;
  30
  31 /*
  32  * http://dev.eclipse.org/bugs/show_bug.cgi?id=19104
  33  */
  34 public class ActionUtil {
  35
  36         private ActionUtil() {
  37         }
  38
  39         // bug 31998 we will have to disable renaming of linked packages (and cus)
  40 //      public static boolean mustDisableJavaModelAction(Shell shell, Object element) {
  41 //              if (!(element instanceof IPackageFragment)
  42 //                              && !(element instanceof IPackageFragmentRoot))
  43 //                      return false;
  44 //
  45 //              IResource resource = ResourceUtil.getResource(element);
  46 //              if ((resource == null) || (!(resource instanceof IFolder))
  47 //                              || (!resource.isLinked()))
  48 //                      return false;
  49 //
  50 //              MessageDialog
  51 //                              .openInformation(
  52 //                                              shell,
  53 //                                              ActionMessages.getString("ActionUtil.not_possible"), ActionMessages.getString("ActionUtil.no_linked")); //$NON-NLS-1$ //$NON-NLS-2$
  54 //              return true;
  55 //      }
  56
  57         public static boolean isProcessable(Shell shell, PHPEditor editor) {
  58                 if (editor == null)
  59                         return true;
  60                 IJavaElement input = SelectionConverter.getInput(editor);
  61                 // if a Java editor doesn't have an input of type Java element
  62                 // then it is for sure not on the build path
  63                 if (input == null) {
  64                         MessageDialog.openInformation(shell, ActionMessages
  65                                         .getString("ActionUtil.notOnBuildPath.title"), //$NON-NLS-1$
  66                                         ActionMessages
  67                                                         .getString("ActionUtil.notOnBuildPath.message")); //$NON-NLS-1$
  68                         return false;
  69                 }
  70                 return isProcessable(shell, input);
  71         }
  72
  73         public static boolean isProcessable(Shell shell, Object element) {
  74                 if (!(element instanceof IJavaElement))
  75                         return true;
  76
  77                 if (isOnBuildPath((IJavaElement) element))
  78                         return true;
  79                 MessageDialog.openInformation(shell, ActionMessages
  80                                 .getString("ActionUtil.notOnBuildPath.title"), //$NON-NLS-1$
  81                                 ActionMessages.getString("ActionUtil.notOnBuildPath.message")); //$NON-NLS-1$
  82                 return false;
  83         }
  84
  85         public static boolean isOnBuildPath(IJavaElement element) {
  86                 // fix for bug http://dev.eclipse.org/bugs/show_bug.cgi?id=20051
  87                 if (element.getElementType() == IJavaElement.JAVA_PROJECT)
  88                         return true;
  89                 IJavaProject project = element.getJavaProject();
  90                 try {
  91                         // if (!project.isOnClasspath(element))
  92                         // return false;
  93                         IProject resourceProject = project.getProject();
  94                         if (resourceProject == null)
  95                                 return false;
  96                         IProjectNature nature = resourceProject
  97                                         .getNature(/*WebUI*/PHPeclipsePlugin.PHP_NATURE_ID);
  98                         // We have a Java project
  99                         if (nature != null)
 100                                 return true;
 101                 } catch (CoreException e) {
 102                 }
 103                 return false;
 104         }
 105 }