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) && !(element instanceof IPackageFragmentRoot))
  40                         return false;
  41
  42                 IResource resource= ResourceUtil.getResource(element);
  43                 if ((resource == null) || (! (resource instanceof IFolder)) || (! resource.isLinked()))
  44                         return false;
  45
  46                 MessageDialog.openInformation(shell, ActionMessages.getString("ActionUtil.not_possible"), ActionMessages.getString("ActionUtil.no_linked")); //$NON-NLS-1$ //$NON-NLS-2$
  47                 return true;
  48         }
  49
  50         public static boolean isProcessable(Shell shell, PHPEditor editor) {
  51                 if (editor == null)
  52                         return true;
  53                 IJavaElement input= SelectionConverter.getInput(editor);
  54                 // if a Java editor doesn't have an input of type Java element
  55                 // then it is for sure not on the build path
  56                 if (input == null) {
  57                         MessageDialog.openInformation(shell,
  58                                 ActionMessages.getString("ActionUtil.notOnBuildPath.title"),  //$NON-NLS-1$
  59                                 ActionMessages.getString("ActionUtil.notOnBuildPath.message")); //$NON-NLS-1$
  60                         return false;
  61                 }
  62                 return isProcessable(shell, input);
  63         }
  64
  65         public static boolean isProcessable(Shell shell, Object element) {
  66                 if (!(element instanceof IJavaElement))
  67                         return true;
  68
  69                 if (isOnBuildPath((IJavaElement)element))
  70                         return true;
  71                 MessageDialog.openInformation(shell,
  72                         ActionMessages.getString("ActionUtil.notOnBuildPath.title"),  //$NON-NLS-1$
  73                         ActionMessages.getString("ActionUtil.notOnBuildPath.message")); //$NON-NLS-1$
  74                 return false;
  75         }
  76
  77         public static boolean isOnBuildPath(IJavaElement element) {
  78         //fix for bug http://dev.eclipse.org/bugs/show_bug.cgi?id=20051
  79         if (element.getElementType() == IJavaElement.JAVA_PROJECT)
  80             return true;
  81                 IJavaProject project= element.getJavaProject();
  82                 try {
  83 //                      if (!project.isOnClasspath(element))
  84 //                              return false;
  85                         IProject resourceProject= project.getProject();
  86                         if (resourceProject == null)
  87                                 return false;
  88                         IProjectNature nature= resourceProject.getNature(PHPeclipsePlugin.PHP_NATURE_ID);
  89                         // We have a Java project
  90                         if (nature != null)
  91                                 return true;
  92                 } catch (CoreException e) {
  93                 }
  94                 return false;
  95         }
  96 }
  97