/*
* 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.IMarker;
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.navigator.CommonViewer;
import de.tobject.findbugs.view.BugExplorerView;
import de.tobject.findbugs.view.explorer.BugContentProvider;
import de.tobject.findbugs.view.explorer.BugGroup;
import de.tobject.findbugs.view.explorer.Grouping;
public class GoUpAction implements IViewActionDelegate {
private BugExplorerView navigator;
public void init(IViewPart view) {
if (view instanceof BugExplorerView) {
navigator = (BugExplorerView) view;
}
}
public void run(IAction action) {
if (!action.isEnabled()) {
return;
}
CommonViewer viewer = navigator.getCommonViewer();
Object[] expandedElements = viewer.getVisibleExpandedElements();
Object input = viewer.getInput();
if (input instanceof BugGroup) {
BugGroup group = (BugGroup) input;
Object data = group.getParent();
boolean needRefresh = data == null;
if (needRefresh) {
BugContentProvider.getProvider(navigator.getNavigatorContentService()).reSetInput();
} else {
viewer.setInput(data);
}
// viewer.setSelection(new StructuredSelection(input), true);
// viewer.expandToLevel(input, 1);
viewer.setExpandedElements(expandedElements);
}
action.setEnabled(isEnabled());
}
public void selectionChanged(IAction action, ISelection selection) {
action.setEnabled(isEnabled());
}
private boolean isEnabled() {
if (navigator == null) {
return false;
}
Object input = navigator.getCommonViewer().getInput();
if (input instanceof IMarker) {
return true;
}
if (input instanceof BugGroup) {
BugContentProvider provider = BugContentProvider.getProvider(navigator.getNavigatorContentService());
BugGroup bugGroup = (BugGroup) input;
Grouping grouping = provider.getGrouping();
if (grouping == null) {
return false;
}
// as long as the current input is on the "visible" children list
// (workspace is invisible)
return grouping.contains(bugGroup.getType());
}
return false;
}
}