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