/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.jboss.ballroom.client.util;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.Widget;
public class LoadingOverlay
{
static PopupPanel p = null;
public static void on(Widget parent, boolean loading)
{
if(parent !=null && loading)
{
int left = parent.getAbsoluteLeft();
int top = parent.getAbsoluteTop();
int width = parent.getOffsetWidth();
int height = parent.getOffsetHeight();
p = new PopupPanel();
//p.setStylePrimaryName("bpm-loading-overlay");
p.setWidget(new Image("images/loading_lite.gif"));
p.setPopupPosition(left+(width/2)-15, top+(height/2)-15);
p.show();
}
else
{
if(p!=null)
{
p.hide();
p = null;
}
}
}
public static void hide() {
if(p!=null) p.hide();
}
}