RemoveProjectAction


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  package org.eclipse.ant.internal.ui.views.actions;
12  import java.util.ArrayList  ;
13  import java.util.Iterator  ;
14  import java.util.List  ;
15  import org.eclipse.ant.internal.ui.AntUIImages;
16  import org.eclipse.ant.internal.ui.IAntUIConstants;
17  import org.eclipse.ant.internal.ui.IAntUIHelpContextIds;
18  import org.eclipse.ant.internal.ui.model.AntProjectNode;
19  import org.eclipse.ant.internal.ui.views.AntView;
20  import org.eclipse.jface.action.Action;
21  import org.eclipse.jface.viewers.IStructuredSelection;
22  import org.eclipse.ui.PlatformUI;
23  import org.eclipse.ui.texteditor.IUpdate;
24  
25  /**
26   * Action that removes selected build files from an <code>AntView</code>
27   */
28  public class RemoveProjectAction extends Action implements IUpdate {
29      
30      private AntView view;
31      
32      public RemoveProjectAction(AntView view) {
33          super(AntViewActionMessages.RemoveProjectAction_Remove, AntUIImages.getImageDescriptor(IAntUIConstants.IMG_REMOVE));
34          this.view= view;
35          setToolTipText(AntViewActionMessages.RemoveProjectAction_Remove_2);
36          PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IAntUIHelpContextIds.REMOVE_PROJECT_ACTION);
37      }
38  
39      /**
40       * @see org.eclipse.jface.action.IAction#run()
41       */
42      public void run() {
43          IStructuredSelection selection= (IStructuredSelection) view.getViewer().getSelection();
44          Iterator   iter= selection.iterator();
45          Object   element;
46          List   projectNodes= new ArrayList  ();
47          while (iter.hasNext()) {
48              element= iter.next();
49              if (element instanceof AntProjectNode) {
50                  projectNodes.add(element);
51              }
52          }
53          view.removeProjects(projectNodes);
54      }
55      
56      /**
57       * @see org.eclipse.ui.texteditor.IUpdate#update()
58       */
59      public void update() {
60          IStructuredSelection selection= (IStructuredSelection) view.getViewer().getSelection();
61          if (selection.isEmpty()) {
62              setEnabled(false);
63              return;
64          }
65          Object   element;
66          Iterator   iter= selection.iterator();
67          while (iter.hasNext()) {
68              element= iter.next();
69              if (!(element instanceof AntProjectNode)) {
70                  setEnabled(false);
71                  return;
72              }
73          }
74          setEnabled(true);
75      }
76      
77  }
78
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