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/*******************************************************************************
* Copyright (c) 2004, 2014 QNX Software Systems and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* QNX Software Systems - Initial API and implementation
* Alvaro Sanchez-Leon (Ericsson) - preserve selection changes (needed by Bug 235747)
*******************************************************************************/
package org.eclipse.cdt.debug.internal.ui.actions;
import org.eclipse.cdt.debug.ui.CDebugUIPlugin;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.MultiStatus;
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.ui.DebugUITools;
import org.eclipse.debug.ui.IDebugUIConstants;
import org.eclipse.debug.ui.IDebugView;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.INullSelectionListener;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.actions.ActionDelegate;
/**
* The superclass for action delegates of views different than the Debug view and
* driven by the selection in the Debug view.
*/
public abstract class AbstractViewActionDelegate extends ActionDelegate
implements IViewActionDelegate, INullSelectionListener, IDebugEventSetListener {
private IAction fAction;
private IDebugView fView;
private IStructuredSelection fSelection = StructuredSelection.EMPTY;
@Override
public void init(IViewPart view) {
setView(view);
DebugPlugin.getDefault().addDebugEventListener(this);
IWorkbenchWindow window = getWindow();
if (window != null) {
window.getSelectionService().addSelectionListener(IDebugUIConstants.ID_DEBUG_VIEW, this);
}
IAdaptable context = DebugUITools.getDebugContext();
IStructuredSelection ss = (context != null) ? new StructuredSelection(context) : StructuredSelection.EMPTY;
selectionChanged((IWorkbenchPart) null, ss);
}
@Override
public void dispose() {
IWorkbenchWindow window = getWindow();
if (window != null) {
window.getSelectionService().removeSelectionListener(IDebugUIConstants.ID_DEBUG_VIEW, this);
}
DebugPlugin.getDefault().removeDebugEventListener(this);
super.dispose();
}
@Override
public void init(IAction action) {
setAction(action);
action.setEnabled(false);
super.init(action);
}
protected IDebugView getView() {
return fView;
}
private void setView(IViewPart view) {
fView = (view instanceof IDebugView) ? (IDebugView) view : null;
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
*/
@Override
public void run(IAction action) {
final MultiStatus ms = new MultiStatus(CDebugUIPlugin.getUniqueIdentifier(), DebugException.REQUEST_FAILED, "", //$NON-NLS-1$
null);
BusyIndicator.showWhile(Display.getCurrent(), new Runnable() {
@Override
public void run() {
try {
doAction();
} catch (DebugException e) {
ms.merge(e.getStatus());
}
}
});
if (!ms.isOK()) {
IWorkbenchWindow window = CDebugUIPlugin.getActiveWorkbenchWindow();
if (window != null) {
CDebugUIPlugin.errorDialog(getErrorDialogMessage(), ms.getChildren()[0]);
} else {
CDebugUIPlugin.log(ms);
}
}
}
protected IAction getAction() {
return fAction;
}
private void setAction(IAction action) {
fAction = action;
}
private IWorkbenchWindow getWindow() {
if (getView() != null) {
return getView().getViewSite().getWorkbenchWindow();
}
return null;
}
/* (non-Javadoc)
* @see org.eclipse.ui.ISelectionListener#selectionChanged(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
*/
@Override
public void selectionChanged(IWorkbenchPart part, ISelection selection) {
setSelection(selection);
update();
}
protected IStructuredSelection getSelection() {
return fSelection;
}
protected void setSelection(ISelection selection) {
fSelection = (selection instanceof IStructuredSelection) ? (IStructuredSelection) selection
: StructuredSelection.EMPTY;
}
/* (non-Javadoc)
* @see org.eclipse.debug.core.IDebugEventSetListener#handleDebugEvents(org.eclipse.debug.core.DebugEvent[])
*/
@Override
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() {
@Override
public void run() {
for (int i = 0; i < events.length; i++) {
if (events[i].getSource() != null) {
doHandleDebugEvent(events[i]);
}
}
}
};
shell.getDisplay().asyncExec(r);
}
/* (non-Javadoc)
* @see org.eclipse.ui.actions.ActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
*/
@Override
public void selectionChanged(IAction action, ISelection selection) {
setSelection(selection);
update();
}
protected abstract String getErrorDialogTitle();
protected abstract String getErrorDialogMessage();
protected abstract void doAction() throws DebugException;
protected abstract void update();
protected abstract void doHandleDebugEvent(DebugEvent event);
}
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