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/*******************************************************************************
* Copyright (c) 2005, 2016 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.internal.ui.contexts;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.ISafeRunnable;
import org.eclipse.core.runtime.ListenerList;
import org.eclipse.core.runtime.SafeRunner;
import org.eclipse.debug.core.DebugEvent;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.IDebugEventSetListener;
import org.eclipse.debug.core.ILaunch;
import org.eclipse.debug.core.model.IDebugElement;
import org.eclipse.debug.core.model.IDebugTarget;
import org.eclipse.debug.core.model.IThread;
import org.eclipse.debug.internal.ui.DebugUIPlugin;
import org.eclipse.debug.ui.contexts.ISuspendTrigger;
import org.eclipse.debug.ui.contexts.ISuspendTriggerListener;
/**
* @since 3.2
*/
public class LaunchSuspendTrigger implements ISuspendTrigger, IDebugEventSetListener {
private ListenerList<ISuspendTriggerListener> fListeners = new ListenerList<>();
private SuspendTriggerAdapterFactory fFactory = null;
private ILaunch fLaunch = null;
public LaunchSuspendTrigger(ILaunch launch, SuspendTriggerAdapterFactory factory) {
fFactory = factory;
fLaunch = launch;
DebugPlugin.getDefault().addDebugEventListener(this);
}
public ILaunch getLaunch() {
return fLaunch;
}
protected void dispose() {
DebugPlugin.getDefault().removeDebugEventListener(this);
fListeners = null;
fFactory.dispose(this);
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.contexts.ISuspendTrigger#addSuspendTriggerListener(org.eclipse.debug.ui.contexts.ISuspendTriggerListener)
*/
@Override
public void addSuspendTriggerListener(ISuspendTriggerListener listener) {
if (fListeners != null) {
fListeners.add(listener);
}
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.contexts.ISuspendTrigger#removeSuspendTriggerListener(org.eclipse.debug.ui.contexts.ISuspendTriggerListener)
*/
@Override
public void removeSuspendTriggerListener(ISuspendTriggerListener listener) {
if (fListeners != null) {
fListeners.remove(listener);
}
if (fListeners.size() == 0) {
dispose();
}
}
/* (non-Javadoc)
* @see org.eclipse.debug.core.IDebugEventSetListener#handleDebugEvents(org.eclipse.debug.core.DebugEvent[])
*/
@Override
public void handleDebugEvents(DebugEvent[] events) {
// open the debugger if this is a suspend event and the debug view is not yet open
// and the preferences are set to switch
for (int i = 0; i < events.length; i++) {
DebugEvent event = events[i];
if (event.getKind() == DebugEvent.SUSPEND && !event.isEvaluation() && event.getDetail() != DebugEvent.STEP_END) {
// Don't switch perspective for evaluations or stepping
Object source = event.getSource();
if (source instanceof IAdaptable) {
IAdaptable adaptable = (IAdaptable) source;
ILaunch launch = adaptable.getAdapter(ILaunch.class);
if (fLaunch.equals(launch)) {
// only notify for this launch
notifySuspend(event);
}
}
}
}
}
/**
* @param event
*/
private void notifySuspend(DebugEvent event) {
Object source = event.getSource();
if (source instanceof IDebugElement) {
final ILaunch launch = ((IDebugElement)source).getLaunch();
Object context = null;
if (source instanceof IThread) {
try {
context = ((IThread)source).getTopStackFrame();
} catch (DebugException e) {
}
} else if (source instanceof IDebugTarget) {
context = source;
}
final Object temp = context;
ListenerList<ISuspendTriggerListener> list = fListeners;
if (list != null) {
for (ISuspendTriggerListener iSuspendTriggerListener : list) {
final ISuspendTriggerListener listener = iSuspendTriggerListener;
SafeRunner.run(new ISafeRunnable() {
@Override
public void run() throws Exception {
listener.suspended(launch, temp);
}
@Override
public void handleException(Throwable exception) {
DebugUIPlugin.log(exception);
}
});
}
}
}
}
}
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