net.sourceforge.phpeclipse.externaltools/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.ExternalToolsModelMessages;
  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 value for the working
  26  * directory. Variable is limited to a specific <code>IContainer</code>
  27  * 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         /*
  42          * (non-Javadoc) Method declared on ResourceComponent.
  43          */
  44         protected void createSelectedResourceOption() {
  45                 // Do not present this option...
  46         }
  47
  48         /*
  49          * (non-Javadoc) Method declared on ResourceComponent.
  50          */
  51         protected void createResourceList() {
  52                 super.createResourceList();
  53                 if (resourceList != null)
  54                         resourceList.addFilter(new FileFilter());
  55         }
  56
  57         /*
  58          * (non-Javadoc) 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(ExternalToolsModelMessages
  66                                 .getString("ResourceComponent.specificResLabel")); //$NON-NLS-1$
  67         }
  68
  69         /*
  70          * (non-Javadoc) Method declared on ResourceComponent.
  71          */
  72         protected boolean validateResourceListSelection() {
  73                 if (resourceList == null)
  74                         return true;
  75
  76                 IStructuredSelection sel = (IStructuredSelection) resourceList
  77                                 .getSelection();
  78                 IResource resource = (IResource) sel.getFirstElement();
  79                 if (resource == null || resource.getType() == IResource.FILE) {
  80                         getPage()
  81                                         .setMessage(
  82                                                         ExternalToolsModelMessages
  83                                                                         .getString("ResourceComponent.selectionRequired"), IMessageProvider.WARNING); //$NON-NLS-1$
  84                         setIsValid(false);
  85                         return false;
  86                 }
  87
  88                 return true;
  89         }
  90
  91         /**
  92          * Filter to remove any IFile resources.
  93          */
  94         private static final class FileFilter extends ViewerFilter {
  95                 /*
  96                  * (non-Javadoc) Method declared on ViewerFilter.
  97                  */
  98                 public boolean select(Viewer viewer, Object parentElement,
  99                                 Object element) {
 100                         IResource resource = null;
 101                         if (element instanceof IResource) {
 102                                 resource = (IResource) element;
 103                         } else {
 104                                 if (element instanceof IAdaptable) {
 105                                         IAdaptable adaptable = (IAdaptable) element;
 106                                         resource = (IResource) adaptable
 107                                                         .getAdapter(IResource.class);
 108                                 }
 109                         }
 110
 111                         if (resource != null)
 112                                 return resource.getType() != IResource.FILE;
 113                         else
 114                                 return false;
 115                 }
 116         }
 117 }