/*******************************************************************************
* Copyright (c) 2009 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.debug.internal.ui.disassembly;
import org.eclipse.cdt.dsf.debug.internal.ui.disassembly.provisional.DisassemblySelection;
import org.eclipse.cdt.dsf.debug.internal.ui.disassembly.provisional.IDisassemblySelection;
import org.eclipse.core.runtime.ListenerList;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
/**
* Selection provider for disassembly selections.
* Wraps the selection provider of the underlying text viewer and provides
* {@link IDisassemblySelection}s instead of {@link ITextSelection}s.
*
* @since 2.1
* @see IDisassemblySelection
*/
class DisassemblySelectionProvider implements ISelectionProvider {
private final ListenerList fListenerList = new ListenerList(ListenerList.IDENTITY);
private final ISelectionChangedListener fListener = new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
fireSelectionChanged(event);
}
};
private final DisassemblyPart fPart;
DisassemblySelectionProvider(DisassemblyPart disassemblyPart) {
fPart = disassemblyPart;
fPart.getTextViewer().getSelectionProvider().addSelectionChangedListener(fListener);
}
private void fireSelectionChanged(SelectionChangedEvent event) {
SelectionChangedEvent newEvent = new SelectionChangedEvent(this, getSelection());
Object[] listeners = fListenerList.getListeners();
for (int i = 0; i < listeners.length; i++) {
ISelectionChangedListener listener = (ISelectionChangedListener) listeners[i];
listener.selectionChanged(newEvent);
}
}
/*
* @see org.eclipse.jface.viewers.ISelectionProvider#addSelectionChangedListener(org.eclipse.jface.viewers.ISelectionChangedListener)
*/
public void addSelectionChangedListener(ISelectionChangedListener listener) {
fListenerList.add(listener);
}
/*
* @see org.eclipse.jface.viewers.ISelectionProvider#getSelection()
*/
public ISelection getSelection() {
final ISourceViewer textViewer= fPart.getTextViewer();
ISelectionProvider provider = textViewer.getSelectionProvider();
if (provider != null) {
return new DisassemblySelection((ITextSelection) provider.getSelection(), fPart);
}
return StructuredSelection.EMPTY;
}
/*
* @see org.eclipse.jface.viewers.ISelectionProvider#removeSelectionChangedListener(org.eclipse.jface.viewers.ISelectionChangedListener)
*/
public void removeSelectionChangedListener(ISelectionChangedListener listener) {
fListenerList.remove(listener);
}
/*
* @see org.eclipse.jface.viewers.ISelectionProvider#setSelection(org.eclipse.jface.viewers.ISelection)
*/
public void setSelection(ISelection selection) {
ISelectionProvider provider = fPart.getTextViewer().getSelectionProvider();
if (provider != null) {
provider.setSelection(selection);
}
}
}