/*******************************************************************************
* Copyright (c) 2004, 2010 QNX Software Systems 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:
* QNX Software Systems - Initial API and implementation
* Ericsson - Updated to latest platform code
*******************************************************************************/
package org.eclipse.cdt.debug.internal.ui.actions;
import org.eclipse.cdt.debug.ui.CDebugUIPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdapterManager;
import org.eclipse.core.runtime.Platform;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.model.ISuspendResume;
import org.eclipse.debug.ui.DebugUITools;
import org.eclipse.debug.ui.contexts.DebugContextEvent;
import org.eclipse.debug.ui.contexts.IDebugContextListener;
import org.eclipse.debug.ui.contexts.IDebugContextManager;
import org.eclipse.debug.ui.contexts.IDebugContextService;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Event;
import org.eclipse.ui.IActionDelegate2;
import org.eclipse.ui.IEditorActionDelegate;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchPartSite;
import org.eclipse.ui.IWorkbenchWindow;
/**
* A resume at line action that can be contributed to a an editor. The action
* will perform the "resume at line" operation for editors that provide
* an appropriate <code>IResumeAtLineTarget</code> adapter.
*/
public class ResumeAtLineActionDelegate implements IEditorActionDelegate, IActionDelegate2, IViewActionDelegate {
private IWorkbenchPart fActivePart = null;
private IResumeAtLineTarget fPartTarget = null;
private IAction fAction = null;
private DebugContextListener fContextListener = new DebugContextListener();
private ISuspendResume fTargetElement = null;
class DebugContextListener implements IDebugContextListener {
protected void contextActivated(ISelection selection) {
fTargetElement = null;
if (selection instanceof IStructuredSelection) {
IStructuredSelection ss = (IStructuredSelection) selection;
if (ss.size() == 1) {
fTargetElement = (ISuspendResume)
DebugPlugin.getAdapter(ss.getFirstElement(), ISuspendResume.class);
}
}
update();
}
public void debugContextChanged(DebugContextEvent event) {
contextActivated(event.getContext());
}
}
/*(non-Javadoc)
* @see org.eclipse.ui.IActionDelegate2#dispose()
*/
public void dispose() {
DebugUITools.getDebugContextManager().getContextService(fActivePart.getSite().getWorkbenchWindow()).removeDebugContextListener(fContextListener);
fActivePart = null;
fPartTarget = null;
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
*/
public void run(IAction action) {
if (fPartTarget != null && fTargetElement != null) {
try {
fPartTarget.resumeAtLine(fActivePart, fActivePart.getSite().getSelectionProvider().getSelection(), fTargetElement);
} catch (CoreException e) {
ErrorDialog.openError( fActivePart.getSite().getWorkbenchWindow().getShell(), ActionMessages.getString( "ResumeAtLineActionDelegate.1" ), ActionMessages.getString( "ResumeAtLineActionDelegate.2" ), e.getStatus() ); //$NON-NLS-1$ //$NON-NLS-2$
}
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged(IAction action, ISelection selection) {
this.fAction = action;
update();
}
/* (non-Javadoc)
* @see org.eclipse.ui.texteditor.IUpdate#update()
*/
public void update() {
if (fAction == null) {
return;
}
Runnable r = new Runnable() {
public void run() {
boolean enabled = false;
if (fPartTarget != null && fTargetElement != null) {
IWorkbenchPartSite site = fActivePart.getSite();
if (site != null) {
ISelectionProvider selectionProvider = site.getSelectionProvider();
if (selectionProvider != null) {
ISelection selection = selectionProvider.getSelection();
enabled = fTargetElement.isSuspended() && fPartTarget.canResumeAtLine(fActivePart, selection, fTargetElement);
}
}
}
fAction.setEnabled(enabled);
}
};
CDebugUIPlugin.getStandardDisplay().asyncExec(r);
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate2#init(org.eclipse.jface.action.IAction)
*/
public void init(IAction action) {
this.fAction = action;
}
/* (non-Javadoc)
* @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);
}
/* (non-Javadoc)
* @see org.eclipse.ui.IEditorActionDelegate#setActiveEditor(org.eclipse.jface.action.IAction, org.eclipse.ui.IEditorPart)
*/
public void setActiveEditor(IAction action, IEditorPart targetEditor) {
init(action);
bindTo(targetEditor);
}
/* (non-Javadoc)
* @see org.eclipse.ui.IViewActionDelegate#init(org.eclipse.ui.IViewPart)
*/
public void init(IViewPart view) {
bindTo(view);
}
/**
* Binds this action to operate on the given part's IResumeAtLineTarget adapter.
*
* @param part
*/
private void bindTo(IWorkbenchPart part) {
IDebugContextManager manager = DebugUITools.getDebugContextManager();
if (fActivePart != null && !fActivePart.equals(part)) {
manager.getContextService(fActivePart.getSite().getWorkbenchWindow()).removeDebugContextListener(fContextListener);
}
fPartTarget = null;
fActivePart = part;
if (part != null) {
IWorkbenchWindow workbenchWindow = part.getSite().getWorkbenchWindow();
IDebugContextService service = manager.getContextService(workbenchWindow);
service.addDebugContextListener(fContextListener);
fPartTarget = (IResumeAtLineTarget) part.getAdapter(IResumeAtLineTarget.class);
if (fPartTarget == null) {
IAdapterManager adapterManager = Platform.getAdapterManager();
// TODO: we could restrict loading to cases when the debugging context is on
if (adapterManager.hasAdapter(part, IResumeAtLineTarget.class.getName())) {
fPartTarget = (IResumeAtLineTarget) adapterManager.loadAdapter(part, IResumeAtLineTarget.class.getName());
}
}
ISelection activeContext = service.getActiveContext();
fContextListener.contextActivated(activeContext);
}
update();
}
}