RemoveAction


1   /*******************************************************************************
2    * Copyright (c) 2003, 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  package org.eclipse.debug.internal.ui.sourcelookup;
12  
13  import java.util.List  ;
14  
15  import org.eclipse.jface.viewers.IStructuredSelection;
16  
17  /**
18   * The action used to remove source containers in the source location dialog/tab.
19   * 
20   */
21  public class RemoveAction extends SourceContainerAction {
22      public RemoveAction() {
23          super(SourceLookupUIMessages.sourceTab_removeButton); 
24      }
25      /**
26       * Removes all selected entries.
27       * 
28       * @see IAction#run()
29       */
30      public void run() {
31          List   targets = getOrderedSelection();
32          List   list = getEntriesAsList();
33          list.removeAll(targets);
34          setEntries(list);
35      }
36      
37      /**
38       * @see SelectionListenerAction#updateSelection(IStructuredSelection)
39       */
40      protected boolean updateSelection(IStructuredSelection selection) {
41          //check that something is selected and it is a root tree node.
42          return !selection.isEmpty() && getViewer().getTree().getSelection()[0].getParentItem()==null;
43      }
44      
45  }
46

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