ExceptionCaughtToggleAction


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.jdt.internal.debug.ui.actions;
12  
13  
14  import java.util.Iterator  ;
15  
16  import org.eclipse.core.runtime.CoreException;
17  import org.eclipse.jdt.debug.core.IJavaBreakpoint;
18  import org.eclipse.jdt.debug.core.IJavaExceptionBreakpoint;
19  import org.eclipse.jface.viewers.IStructuredSelection;
20  
21  /**
22   * Toggles the caught state of an exception breakpoint
23   */
24  public class ExceptionCaughtToggleAction extends BreakpointToggleAction {
25  
26      /**
27       * @see BreakpointToggleAction#getToggleState(IJavaBreakpoint)
28       */
29      protected boolean getToggleState(IJavaBreakpoint breakpoint) throws CoreException {
30          //will only be called after isEnabledFor so cast is safe
31          IJavaExceptionBreakpoint exception= (IJavaExceptionBreakpoint)breakpoint;
32          return exception.isCaught();
33      }
34  
35      /**
36       * @see BreakpointToggleAction#doAction(IJavaBreakpoint)
37       */
38      public void doAction(IJavaBreakpoint breakpoint) throws CoreException {
39          //will only be called after isEnabledFor so cast is safe
40          IJavaExceptionBreakpoint exception= (IJavaExceptionBreakpoint)breakpoint;
41          exception.setCaught(!exception.isCaught());
42      }
43      
44      /**
45       * @see BreakpointToggleAction#isEnabledFor(IStructuredSelection)
46       */
47      public boolean isEnabledFor(IStructuredSelection selection) {
48          Iterator   iter= selection.iterator();
49          while (iter.hasNext()) {
50              Object   element = iter.next();
51              if (!(element instanceof IJavaExceptionBreakpoint)) {
52                  return false;
53              }
54              
55          }
56          return true;
57      }
58  }
59
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