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Java > Open Source Codes > org > eclipse > jdt > internal > debug > ui > actions > 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 JavaDoc;
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 JavaDoc iter= selection.iterator();
49         while (iter.hasNext()) {
50             Object JavaDoc element = iter.next();
51             if (!(element instanceof IJavaExceptionBreakpoint)) {
52                 return false;
53             }
54             
55         }
56         return true;
57     }
58 }
59
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