net.sourceforge.phpeclipse/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
  22 //import org.eclipse.core.resources.IFolder;
  23 import org.eclipse.core.resources.IProject;
  24 import org.eclipse.core.resources.IProjectNature;
  25 //import org.eclipse.core.resources.IResource;
  26 import org.eclipse.core.runtime.CoreException;
  27 import org.eclipse.jface.dialogs.MessageDialog;
  28 import org.eclipse.swt.widgets.Shell;
  29
  30 /*
  31  * http://dev.eclipse.org/bugs/show_bug.cgi?id=19104
  32  */
  33 public class ActionUtil {
  34
  35         private ActionUtil() {
  36         }
  37
  38         // bug 31998 we will have to disable renaming of linked packages (and cus)
  39 //      public static boolean mustDisableJavaModelAction(Shell shell, Object element) {
  40 //              if (!(element instanceof IPackageFragment)
  41 //                              && !(element instanceof IPackageFragmentRoot))
  42 //                      return false;
  43 //
  44 //              IResource resource = ResourceUtil.getResource(element);
  45 //              if ((resource == null) || (!(resource instanceof IFolder))
  46 //                              || (!resource.isLinked()))
  47 //                      return false;
  48 //
  49 //              MessageDialog
  50 //                              .openInformation(
  51 //                                              shell,
  52 //                                              ActionMessages.getString("ActionUtil.not_possible"), ActionMessages.getString("ActionUtil.no_linked")); //$NON-NLS-1$ //$NON-NLS-2$
  53 //              return true;
  54 //      }
  55
  56         public static boolean isProcessable(Shell shell, PHPEditor editor) {
  57                 if (editor == null)
  58                         return true;
  59                 IJavaElement input = SelectionConverter.getInput(editor);
  60                 // if a Java editor doesn't have an input of type Java element
  61                 // then it is for sure not on the build path
  62                 if (input == null) {
  63                         MessageDialog.openInformation(shell, ActionMessages
  64                                         .getString("ActionUtil.notOnBuildPath.title"), //$NON-NLS-1$
  65                                         ActionMessages
  66                                                         .getString("ActionUtil.notOnBuildPath.message")); //$NON-NLS-1$
  67                         return false;
  68                 }
  69                 return isProcessable(shell, input);
  70         }
  71
  72         public static boolean isProcessable(Shell shell, Object element) {
  73                 if (!(element instanceof IJavaElement))
  74                         return true;
  75
  76                 if (isOnBuildPath((IJavaElement) element))
  77                         return true;
  78                 MessageDialog.openInformation(shell, ActionMessages
  79                                 .getString("ActionUtil.notOnBuildPath.title"), //$NON-NLS-1$
  80                                 ActionMessages.getString("ActionUtil.notOnBuildPath.message")); //$NON-NLS-1$
  81                 return false;
  82         }
  83
  84         public static boolean isOnBuildPath(IJavaElement element) {
  85                 // fix for bug http://dev.eclipse.org/bugs/show_bug.cgi?id=20051
  86                 if (element.getElementType() == IJavaElement.JAVA_PROJECT)
  87                         return true;
  88                 IJavaProject project = element.getJavaProject();
  89                 try {
  90                         // if (!project.isOnClasspath(element))
  91                         // return false;
  92                         IProject resourceProject = project.getProject();
  93                         if (resourceProject == null)
  94                                 return false;
  95                         IProjectNature nature = resourceProject
  96                                         .getNature(PHPeclipsePlugin.PHP_NATURE_ID);
  97                         // We have a Java project
  98                         if (nature != null)
  99                                 return true;
 100                 } catch (CoreException e) {
 101                 }
 102                 return false;
 103         }
 104 }