net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/externaltools/variable/SpecificFolderResourceComponent.java

   1 package net.sourceforge.phpdt.externaltools.variable;
   2
   3 /**********************************************************************
   4 Copyright (c) 2002 IBM Corp. and others. All rights reserved.
   5 This file is made available under the terms of the Common Public License v1.0
   6 which accompanies this distribution, and is available at
   7 http://www.eclipse.org/legal/cpl-v10.html
   8
   9 Contributors:
  10 **********************************************************************/
  11
  12 import net.sourceforge.phpdt.externaltools.internal.model.ToolMessages;
  13
  14 import org.eclipse.core.resources.IResource;
  15 import org.eclipse.core.runtime.IAdaptable;
  16 import org.eclipse.jface.dialogs.IMessageProvider;
  17 import org.eclipse.jface.viewers.IStructuredSelection;
  18 import org.eclipse.jface.viewers.Viewer;
  19 import org.eclipse.jface.viewers.ViewerFilter;
  20 import org.eclipse.swt.SWT;
  21 import org.eclipse.swt.layout.GridData;
  22 import org.eclipse.swt.widgets.Label;
  23
  24 /**
  25  * Visual component to edit the resource type variable
  26  * value for the working directory. Variable is limited to a specific
  27  * <code>IContainer</code> resource.
  28  * <p>
  29  * This class is not intended to be extended by clients.
  30  * </p>
  31  */
  32 public class SpecificFolderResourceComponent extends ResourceComponent {
  33
  34         /**
  35          * Creates an instance
  36          */
  37         public SpecificFolderResourceComponent() {
  38                 super();
  39         }
  40
  41         /* (non-Javadoc)
  42          * Method declared on ResourceComponent.
  43          */
  44         protected void createSelectedResourceOption() {
  45                 // Do not present this option...
  46         }
  47
  48         /* (non-Javadoc)
  49          * Method declared on ResourceComponent.
  50          */
  51         protected void createResourceList() {
  52                 super.createResourceList();
  53                 if (resourceList != null)
  54                         resourceList.addFilter(new FileFilter());
  55         }
  56
  57         /* (non-Javadoc)
  58          * Method declared on ResourceComponent.
  59          */
  60         protected void createSpecificResourceOption() {
  61                 Label label = new Label(mainGroup, SWT.NONE);
  62                 GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
  63                 label.setLayoutData(data);
  64                 label.setFont(mainGroup.getFont());
  65                 label.setText(ToolMessages.getString("ResourceComponent.specificResLabel")); //$NON-NLS-1$
  66         }
  67
  68         /* (non-Javadoc)
  69          * Method declared on ResourceComponent.
  70          */
  71         protected boolean validateResourceListSelection() {
  72                 if (resourceList == null)
  73                         return true;
  74
  75                 IStructuredSelection sel = (IStructuredSelection) resourceList.getSelection();
  76                 IResource resource = (IResource) sel.getFirstElement();
  77                 if (resource == null || resource.getType() == IResource.FILE) {
  78                         getPage().setMessage(ToolMessages.getString("ResourceComponent.selectionRequired"), IMessageProvider.WARNING); //$NON-NLS-1$
  79                         setIsValid(false);
  80                         return false;
  81                 }
  82
  83                 return true;
  84         }
  85
  86
  87         /**
  88          * Filter to remove any IFile resources.
  89          */
  90         private static final class FileFilter extends ViewerFilter {
  91                 /* (non-Javadoc)
  92                  * Method declared on ViewerFilter.
  93                  */
  94                 public boolean select(Viewer viewer, Object parentElement, Object element) {
  95                         IResource resource = null;
  96                         if (element instanceof IResource) {
  97                                 resource = (IResource) element;
  98                         } else {
  99                                 if (element instanceof IAdaptable) {
 100                                         IAdaptable adaptable = (IAdaptable) element;
 101                                         resource = (IResource) adaptable.getAdapter(IResource.class);
 102                                 }
 103                         }
 104
 105                         if (resource != null)
 106                                 return resource.getType() != IResource.FILE;
 107                         else
 108                                 return false;
 109                 }
 110         }
 111 }