FilterSelectionAction


1   /*******************************************************************************
2    * Copyright (c) 2000, 2005 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    *
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  
12  package org.eclipse.ui.views.navigator;
13  
14  import org.eclipse.jface.viewers.LabelProvider;
15  import org.eclipse.jface.viewers.Viewer;
16  import org.eclipse.jface.window.Window;
17  import org.eclipse.ui.PlatformUI;
18  import org.eclipse.ui.dialogs.ListSelectionDialog;
19  import org.eclipse.ui.internal.views.navigator.ResourceNavigatorMessages;
20  
21  /**
22   * The FilterSelectionAction opens the filters dialog.
23   */
24  public class FilterSelectionAction extends ResourceNavigatorAction {
25      private static final String   FILTER_TOOL_TIP = ResourceNavigatorMessages.FilterSelection_toolTip;
26  
27      private static final String   FILTER_SELECTION_MESSAGE = ResourceNavigatorMessages.FilterSelection_message;
28  
29      private static final String   FILTER_TITLE_MESSAGE = ResourceNavigatorMessages.FilterSelection_title;
30  
31      /**
32       * Creates the action.
33       * 
34       * @param navigator the resource navigator
35       * @param label the label for the action
36       */
37      public FilterSelectionAction(IResourceNavigator navigator, String   label) {
38          super(navigator, label);
39          setToolTipText(FILTER_TOOL_TIP);
40          PlatformUI.getWorkbench().getHelpSystem().setHelp(this,
41                  INavigatorHelpContextIds.FILTER_SELECTION_ACTION);
42          setEnabled(true);
43      }
44  
45      /*
46       * Implementation of method defined on <code>IAction</code>.
47       */
48      public void run() {
49          IResourceNavigator navigator = getNavigator();
50          ResourcePatternFilter filter = navigator.getPatternFilter();
51          FiltersContentProvider contentProvider = new FiltersContentProvider(
52                  filter);
53  
54          ListSelectionDialog dialog = new ListSelectionDialog(getShell(),
55                  getViewer(), contentProvider, new LabelProvider(),
56                  FILTER_SELECTION_MESSAGE);
57  
58          dialog.setTitle(FILTER_TITLE_MESSAGE);
59          dialog.setInitialSelections(contentProvider.getInitialSelections());
60          dialog.open();
61          if (dialog.getReturnCode() == Window.OK) {
62              Object  [] results = dialog.getResult();
63              String  [] selectedPatterns = new String  [results.length];
64              System.arraycopy(results, 0, selectedPatterns, 0, results.length);
65              filter.setPatterns(selectedPatterns);
66              navigator.setFiltersPreference(selectedPatterns);
67              Viewer viewer = getViewer();
68              viewer.getControl().setRedraw(false);
69              viewer.refresh();
70              viewer.getControl().setRedraw(true);
71          }
72      }
73  
74  }
75
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