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package org.eclipse.debug.internal.ui.actions;
/**********************************************************************
Copyright (c) 2000, 2002 IBM Corp. All rights reserved.
This file is 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
**********************************************************************/
import org.eclipse.debug.core.DebugEvent;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.IDebugEventSetListener;
import org.eclipse.debug.internal.ui.DebugUIPlugin;
import org.eclipse.debug.ui.IDebugUIConstants;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IPageListener;
import org.eclipse.ui.IPartListener;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
public abstract class AbstractListenerActionDelegate extends AbstractDebugActionDelegate implements IDebugEventSetListener, IPartListener, IPageListener {
/**
* @see IPartListener#partActivated(IWorkbenchPart)
*/
public void partActivated(IWorkbenchPart part) {
}
/**
* @see IPartListener#partBroughtToTop(IWorkbenchPart)
*/
public void partBroughtToTop(IWorkbenchPart part) {
}
/**
* @see IPartListener#partClosed(IWorkbenchPart)
*/
public void partClosed(IWorkbenchPart part) {
if (part.equals(getView())) {
dispose();
}
}
/**
* @see IPartListener#partDeactivated(IWorkbenchPart)
*/
public void partDeactivated(IWorkbenchPart part) {
}
/**
* @see IPartListener#partOpened(IWorkbenchPart)
*/
public void partOpened(IWorkbenchPart part) {
}
/**
* @see IWorkbenchWindowActionDelegate#dispose()
*/
public void dispose() {
super.dispose();
DebugPlugin.getDefault().removeDebugEventListener(this);
getWindow().removePageListener(this);
if (getView() != null) {
getView().getViewSite().getPage().removePartListener(this);
}
}
/**
* @see IDebugEventSetListener#handleDebugEvents(DebugEvent[])
*/
public void handleDebugEvents(final DebugEvent[] events) {
if (getPage() == 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]);
}
}
}
};
getPage().getWorkbenchWindow().getShell().getDisplay().asyncExec(r);
}
/**
* Returns the page that this action works in.
*/
protected IWorkbenchPage getPage() {
if (getWindow() != null) {
return getWindow().getActivePage();
} else {
IWorkbenchWindow window= DebugUIPlugin.getActiveWorkbenchWindow();
if (window != null) {
return window.getActivePage();
}
}
return null;
}
/**
* 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);
window.addPageListener(this);
}
/**
* @see IViewActionDelegate#init(IViewPart)
*/
public void init(IViewPart view) {
super.init(view);
DebugPlugin.getDefault().addDebugEventListener(this);
setWindow(view.getViewSite().getWorkbenchWindow());
getPage().addPartListener(this);
getPage().getWorkbenchWindow().addPageListener(this);
}
/**
* @see IPageListener#pageActivated(IWorkbenchPage)
*/
public void pageActivated(IWorkbenchPage page) {
if (getAction() != null && getView() != null && getPage() != null && getPage().equals(page)) {
Runnable r= new Runnable() {
public void run() {
if (getPage() != null) {
IWorkbenchWindow window= getPage().getWorkbenchWindow();
if (window != null && window.getShell() != null && !window.getShell().isDisposed()) {
ISelection selection= getPage().getSelection(IDebugUIConstants.ID_DEBUG_VIEW);
update(getAction(), selection);
}
}
}
};
getPage().getWorkbenchWindow().getShell().getDisplay().asyncExec(r);
}
}
/**
* @see IPageListener#pageClosed(IWorkbenchPage)
*/
public void pageClosed(IWorkbenchPage page) {
if (page.equals(getPage())) {
dispose();
}
}
/**
* @see IPageListener#pageOpened(IWorkbenchPage)
*/
public void pageOpened(IWorkbenchPage page) {
}
}
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