/*
* Copyright 2014 cruxframework.org.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package org.cruxframework.crux.core.client.dataprovider.pager;
import com.google.gwt.event.shared.GwtEvent;
/**
*
* @author Thiago da Rosa de Bustamante
*
*/
public class PageEvent extends GwtEvent<PageHandler>{
private static Type<PageHandler> TYPE = new Type<PageHandler>();
private HasPageHandlers source;
private int page;
private boolean canceled;
/**
* Constructor
* @param source
* @param requestedPage
*/
public PageEvent(HasPageHandlers source, int requestedPage)
{
this.source = source;
this.page = requestedPage;
}
public HasPageHandlers getSource()
{
return source;
}
public static Type<PageHandler> getType()
{
return TYPE;
}
@Override
protected void dispatch(PageHandler handler)
{
handler.onPage(this);
}
@Override
public Type<PageHandler> getAssociatedType()
{
return TYPE;
}
public static PageEvent fire(HasPageHandlers source, int requestedPage)
{
PageEvent event = new PageEvent(source, requestedPage);
source.fireEvent(event);
return event;
}
/**
* Retrieve the page that was requested to the pager
* @return the page
*/
public int getRequestedPage()
{
return page;
}
/**
* Return if the event is canceled
* @return true if canceled
*/
public boolean isCanceled()
{
return canceled;
}
/**
* Cancel the current event. The Pageable widget does not change the page if canceled
*/
public void cancel()
{
this.canceled = true;
}
}