/*
* Contributions to FindBugs
* Copyright (C) 2008, Andrei Loskutov
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package de.tobject.findbugs.actions;
import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkingSet;
import org.eclipse.ui.navigator.CommonNavigator;
import org.eclipse.ui.navigator.CommonViewer;
import de.tobject.findbugs.view.explorer.BugContentProvider;
public class RefreshAction implements IViewActionDelegate {
private CommonNavigator navigator;
public void init(IViewPart view) {
if (view instanceof CommonNavigator) {
navigator = (CommonNavigator) view;
}
}
public void run(IAction action) {
if (navigator != null) {
CommonViewer viewer = navigator.getCommonViewer();
BugContentProvider provider = BugContentProvider.getProvider(navigator.getNavigatorContentService());
// provider.setRefreshRequested(true);
Object[] expandedElements = viewer.getExpandedElements();
Object input = viewer.getInput();
if (provider.getChildren(input).length == 0) {
viewer.setInput(null);
if (input instanceof IWorkingSet || input instanceof IWorkspaceRoot) {
viewer.setInput(input);
} else {
viewer.setInput(ResourcesPlugin.getWorkspace().getRoot());
}
viewer.refresh(true);
} else {
provider.reSetInput();
}
viewer.setExpandedElements(expandedElements);
}
}
public void selectionChanged(IAction action, ISelection selection) {
// noop
}
}