/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.bpm.console.client.common;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.Widget;
import org.gwt.mosaic.ui.client.infopanel.InfoPanel;
public class LoadingOverlay
{
static InfoPanel 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();
if(width>100 & height>100) // workaround hidden panels
{
p = new InfoPanel();
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;
}
}
}
}