/*
* Copyright (c) 2004-2011 Marco Maccaferri 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:
* Marco Maccaferri - initial API and implementation
*/
package org.eclipsetrader.ui.internal.navigator;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTException;
import org.eclipsetrader.core.repositories.IRepositoryChangeListener;
import org.eclipsetrader.core.repositories.IRepositoryService;
import org.eclipsetrader.core.repositories.RepositoryChangeEvent;
import org.eclipsetrader.ui.internal.UIActivator;
public class WatchListsContentProvider implements IStructuredContentProvider {
private Viewer viewer;
private IRepositoryChangeListener resourceListener = new IRepositoryChangeListener() {
@Override
public void repositoryResourceChanged(RepositoryChangeEvent event) {
NavigatorView view = (NavigatorView) viewer.getInput();
view.update();
if (!viewer.getControl().isDisposed()) {
try {
viewer.getControl().getDisplay().asyncExec(new Runnable() {
@Override
public void run() {
if (!viewer.getControl().isDisposed()) {
viewer.refresh();
}
}
});
} catch (SWTException e) {
if (e.code != SWT.ERROR_DEVICE_DISPOSED) {
throw e;
}
}
}
}
};
public WatchListsContentProvider() {
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
*/
@Override
public Object[] getElements(Object inputElement) {
return getRepositoryService().getWatchLists();
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.IContentProvider#dispose()
*/
@Override
public void dispose() {
getRepositoryService().removeRepositoryResourceListener(resourceListener);
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
*/
@Override
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
if (oldInput != null) {
getRepositoryService().removeRepositoryResourceListener(resourceListener);
}
this.viewer = viewer;
if (newInput != null) {
getRepositoryService().addRepositoryResourceListener(resourceListener);
}
}
protected IRepositoryService getRepositoryService() {
return UIActivator.getDefault().getRepositoryService();
}
}