1 /*******************************************************************************
2  * Copyright (c) 2017 Igor Fedorenko.
3  *
4  * This program and the accompanying materials
5  * are made available under the terms of the Eclipse Public License 2.0
6  * which accompanies this distribution, and is available at
7  * https://www.eclipse.org/legal/epl-2.0/
8  *
9  * SPDX-License-Identifier: EPL-2.0
10  *
11  * Contributors:
12  *     Igor Fedorenko - initial API and implementation
13  *******************************************************************************/
14 package org.eclipse.jdt.internal.debug.ui.actions;
15 
16 import org.eclipse.debug.core.DebugException;
17 import org.eclipse.jdt.debug.core.IJavaThread;
18 import org.eclipse.jdt.debug.ui.IJavaDebugUIConstants;
19 import org.eclipse.jface.preference.IPreferenceStore;
20 import org.eclipse.ui.IViewPart;
21 
22 /**
23  * An action delegate that toggles the state of its viewer to show/hide running threads.
24  */
25 public class ShowRunningThreadsAction extends AbstractThreadsViewFilterAction {
26 
27 	@Override
init(IViewPart view)28 	public void init(IViewPart view) {
29 		// compensate for a bug in how ViewFilterAction stores compositeKey value
30 		// which does not allow default==true and explicit==false
31 		IPreferenceStore store = getPreferenceStore();
32 		String preferenceKey = getPreferenceKey();
33 		if (store.contains(preferenceKey)) {
34 			String compositeKey = view.getSite().getId() + "." + preferenceKey; //$NON-NLS-1$
35 			store.setDefault(compositeKey, store.getBoolean(preferenceKey));
36 		}
37 
38 		super.init(view);
39 	}
40 
41 	@Override
getPreferenceKey()42 	protected String getPreferenceKey() {
43 		return IJavaDebugUIConstants.PREF_SHOW_RUNNING_THREADS;
44 	}
45 
46 	@Override
selectThread(IJavaThread thread)47 	protected boolean selectThread(IJavaThread thread) throws DebugException {
48 		return thread.isSuspended();
49 	}
50 
51 	@Override
isCandidateThread(IJavaThread thread)52 	protected boolean isCandidateThread(IJavaThread thread) throws DebugException {
53 		return true;
54 	}
55 }
56