/*
 * 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 java.util.Set;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.window.Window;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.navigator.CommonNavigator;
import org.eclipse.ui.navigator.CommonViewer;

import de.tobject.findbugs.FindbugsPlugin;
import de.tobject.findbugs.preferences.FindBugsConstants;
import de.tobject.findbugs.view.explorer.BugContentProvider;
import de.tobject.findbugs.view.explorer.FilterBugsDialog;
import edu.umd.cs.findbugs.BugCode;
import edu.umd.cs.findbugs.BugPattern;

public class FilterBugsDialogAction 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) {
			return;
		}
		Set<BugPattern> filtered = FindbugsPlugin.getFilteredPatterns();
		Set<BugCode> filteredTypes = FindbugsPlugin.getFilteredPatternTypes();
		FilterBugsDialog dialog = new FilterBugsDialog(navigator.getSite().getShell(),
				filtered, filteredTypes);
		dialog.setTitle("Bug Filter Configuration");
		int result = dialog.open();
		if (result != Window.OK) {
			return;
		}
		String selectedIds = dialog.getSelectedIds();

		FindbugsPlugin.getDefault().getPreferenceStore().setValue(
				FindBugsConstants.LAST_USED_EXPORT_FILTER, selectedIds);

		BugContentProvider provider = BugContentProvider.getProvider(navigator
				.getNavigatorContentService());
		provider.refreshFilters();
		CommonViewer viewer = navigator.getCommonViewer();
		Object[] expandedElements = viewer.getExpandedElements();
		viewer.refresh(true);
		viewer.setExpandedElements(expandedElements);
	}

	public void selectionChanged(IAction action, ISelection selection) {
		if (navigator == null) {
			action.setEnabled(false);
			return;
		}
		BugContentProvider provider = BugContentProvider.getProvider(navigator
				.getNavigatorContentService());
		action.setEnabled(provider.getGrouping() != null);
	}

}