bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/navigator/FilterSelectionAction.java

/************************************************************************
Copyright (c) 2000, 2003 IBM Corporation and others.
All rights reserved.   This program and the accompanying materials
are made available under the terms of the Common Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/cpl-v10.html

Contributors:
    IBM - Initial implementation
************************************************************************/

package org.eclipse.ui.views.navigator;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.ui.dialogs.ListSelectionDialog;
import org.eclipse.ui.help.WorkbenchHelp;

/**
 * The FilterSelectionAction opens the filters dialog.
 */
public class FilterSelectionAction extends ResourceNavigatorAction {
	private static final String FILTER_TOOL_TIP = ResourceNavigatorMessages.getString("FilterSelection.toolTip"); //$NON-NLS-1$
	private static final String FILTER_SELECTION_MESSAGE = ResourceNavigatorMessages.getString("FilterSelection.message"); //$NON-NLS-1$
	private static final String FILTER_TITLE_MESSAGE = ResourceNavigatorMessages.getString("FilterSelection.title"); //$NON-NLS-1$
	
/**
 * Creates the action.
 * 
 * @param navigator the resource navigator
 * @param label the label for the action
 */
public FilterSelectionAction(IResourceNavigator navigator, String label) {
	super(navigator, label);
	setToolTipText(FILTER_TOOL_TIP);
	WorkbenchHelp.setHelp(this, INavigatorHelpContextIds.FILTER_SELECTION_ACTION);
	setEnabled(true);
}

/*
 * Implementation of method defined on <code>IAction</code>.
 */
public void run() {
	IResourceNavigator navigator = getNavigator();
	ResourcePatternFilter filter = navigator.getPatternFilter();
	FiltersContentProvider contentProvider = new FiltersContentProvider(filter);

	ListSelectionDialog dialog =
		new ListSelectionDialog(
			getShell(),
			getViewer(),
			contentProvider,
			new LabelProvider(),
			FILTER_SELECTION_MESSAGE);

	dialog.setTitle(FILTER_TITLE_MESSAGE);
	dialog.setInitialSelections(contentProvider.getInitialSelections());
	dialog.open();
	if (dialog.getReturnCode() == Dialog.OK) {
		Object[] results = dialog.getResult();
		String[] selectedPatterns = new String[results.length];
		System.arraycopy(results, 0, selectedPatterns, 0, results.length);
		filter.setPatterns(selectedPatterns);
		navigator.setFiltersPreference(selectedPatterns);
		Viewer viewer = getViewer();
		viewer.getControl().setRedraw(false);
		viewer.refresh();
		viewer.getControl().setRedraw(true);
	}
}

}