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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.internal.ui.actions;
import org.eclipse.debug.core.DebugEvent;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.IDebugEventSetListener;
import org.eclipse.jface.action.IAction;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IActionDelegate2;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchWindow;
public abstract class AbstractListenerActionDelegate extends AbstractDebugActionDelegate implements IDebugEventSetListener, IActionDelegate2 {
/**
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#dispose()
* @see org.eclipse.ui.IActionDelegate2#dispose()
*/
public void dispose() {
super.dispose();
DebugPlugin.getDefault().removeDebugEventListener(this);
}
/**
* @see IDebugEventSetListener#handleDebugEvents(DebugEvent[])
*/
public void handleDebugEvents(final DebugEvent[] events) {
if (getWindow() == null || getAction() == null) {
return;
}
Shell shell= getWindow().getShell();
if (shell == null || shell.isDisposed()) {
return;
}
Runnable r= new Runnable() {
public void run() {
Shell shell= getWindow().getShell();
if (shell == null || shell.isDisposed()) {
return;
}
for (int i = 0; i < events.length; i++) {
if (events[i].getSource() != null) {
doHandleDebugEvent(events[i]);
}
}
}
};
shell.getDisplay().asyncExec(r);
}
/**
* Default implementation to update on specific debug events.
* Subclasses should override to handle events differently.
*/
protected void doHandleDebugEvent(DebugEvent event) {
switch (event.getKind()) {
case DebugEvent.TERMINATE :
update(getAction(), getSelection());
break;
case DebugEvent.RESUME :
if (!event.isEvaluation() || !((event.getDetail() & DebugEvent.EVALUATION_IMPLICIT) != 0)) {
update(getAction(), getSelection());
}
break;
case DebugEvent.SUSPEND :
// Update on suspend events (even for evaluations), in case the user changed
// the selection during an implicit evaluation.
update(getAction(), getSelection());
break;
}
}
/**
* @see IWorkbenchWindowActionDelegate#init(IWorkbenchWindow)
*/
public void init(IWorkbenchWindow window){
super.init(window);
DebugPlugin.getDefault().addDebugEventListener(this);
}
/**
* @see IViewActionDelegate#init(IViewPart)
*/
public void init(IViewPart view) {
super.init(view);
DebugPlugin.getDefault().addDebugEventListener(this);
setWindow(view.getViewSite().getWorkbenchWindow());
}
/**
* @see org.eclipse.ui.IActionDelegate2#init(org.eclipse.jface.action.IAction)
*/
public void init(IAction action) {
}
/**
* @see org.eclipse.ui.IActionDelegate2#runWithEvent(org.eclipse.jface.action.IAction, org.eclipse.swt.widgets.Event)
*/
public void runWithEvent(IAction action, Event event) {
run(action);
}
}
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