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.phpeditor.PHPEditor;
  20
  21 import org.eclipse.core.resources.IFolder;
  22 import org.eclipse.core.resources.IProject;
  23 import org.eclipse.core.resources.IProjectNature;
  24 import org.eclipse.core.resources.IResource;
  25 import org.eclipse.core.runtime.CoreException;
  26 import org.eclipse.jface.dialogs.MessageDialog;
  27 import org.eclipse.swt.widgets.Shell;
  28
  29 /*
  30  * http://dev.eclipse.org/bugs/show_bug.cgi?id=19104
  31  */
  32 public class ActionUtil {
  33
  34         private ActionUtil() {
  35         }
  36
  37         // bug 31998 we will have to disable renaming of linked packages (and cus)
  38         public static boolean mustDisableJavaModelAction(Shell shell, Object element) {
  39                 if (!(element instanceof IPackageFragment)
  40                                 && !(element instanceof IPackageFragmentRoot))
  41                         return false;
  42
  43                 IResource resource = ResourceUtil.getResource(element);
  44                 if ((resource == null) || (!(resource instanceof IFolder))
  45                                 || (!resource.isLinked()))
  46                         return false;
  47
  48                 MessageDialog
  49                                 .openInformation(
  50                                                 shell,
  51                                                 ActionMessages.getString("ActionUtil.not_possible"), ActionMessages.getString("ActionUtil.no_linked")); //$NON-NLS-1$ //$NON-NLS-2$
  52                 return true;
  53         }
  54
  55         public static boolean isProcessable(Shell shell, PHPEditor editor) {
  56                 if (editor == null)
  57                         return true;
  58                 IJavaElement input = SelectionConverter.getInput(editor);
  59                 // if a Java editor doesn't have an input of type Java element
  60                 // then it is for sure not on the build path
  61                 if (input == null) {
  62                         MessageDialog.openInformation(shell, ActionMessages
  63                                         .getString("ActionUtil.notOnBuildPath.title"), //$NON-NLS-1$
  64                                         ActionMessages
  65                                                         .getString("ActionUtil.notOnBuildPath.message")); //$NON-NLS-1$
  66                         return false;
  67                 }
  68                 return isProcessable(shell, input);
  69         }
  70
  71         public static boolean isProcessable(Shell shell, Object element) {
  72                 if (!(element instanceof IJavaElement))
  73                         return true;
  74
  75                 if (isOnBuildPath((IJavaElement) element))
  76                         return true;
  77                 MessageDialog.openInformation(shell, ActionMessages
  78                                 .getString("ActionUtil.notOnBuildPath.title"), //$NON-NLS-1$
  79                                 ActionMessages.getString("ActionUtil.notOnBuildPath.message")); //$NON-NLS-1$
  80                 return false;
  81         }
  82
  83         public static boolean isOnBuildPath(IJavaElement element) {
  84                 // fix for bug http://dev.eclipse.org/bugs/show_bug.cgi?id=20051
  85                 if (element.getElementType() == IJavaElement.JAVA_PROJECT)
  86                         return true;
  87                 IJavaProject project = element.getJavaProject();
  88                 try {
  89                         // if (!project.isOnClasspath(element))
  90                         // return false;
  91                         IProject resourceProject = project.getProject();
  92                         if (resourceProject == null)
  93                                 return false;
  94                         IProjectNature nature = resourceProject
  95                                         .getNature(PHPeclipsePlugin.PHP_NATURE_ID);
  96                         // We have a Java project
  97                         if (nature != null)
  98                                 return true;
  99                 } catch (CoreException e) {
 100                 }
 101                 return false;
 102         }
 103 }