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/*
* Copyright 2006 Mat Gessel <mat.gessel@gmail.com>
*
* 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.litesoft.GWT.client.widgets.nonpublic.external;
import com.google.gwt.user.client.*;
import com.google.gwt.user.client.ui.*;
public abstract class EventDelegateAdaptor implements EventDelegate
{
private final int m_eventBits;
/**
* Default constructor for convienence. Subclasses must override
* {@link #getEventBits()} if they want to process events.
*/
public EventDelegateAdaptor()
{
m_eventBits = 0;
}
/**
* Creates an event delegate which is interested in the specified bits.
*
* @param eventBits a bitmask of the events to process
*
* @see Event
*/
public EventDelegateAdaptor( int eventBits )
{
m_eventBits = eventBits;
}
/*
* (non-Javadoc)
* @see asquare.gwt.tk.client.ui.behavior.EventDelegate#onBrowserEvent(com.google.gwt.user.client.ui.Widget, com.google.gwt.user.client.Event)
*/
public void onBrowserEvent( Widget widget, Event event )
{
if ( !doBrowserEvent( widget, event ) )
{
DOM.eventPreventDefault( event );
DOM.eventCancelBubble( event, true );
}
}
/**
* A convenience method for processing events. The event is cancelled if the
* return value is false.
*
* @return false to cancel the event
*/
protected boolean doBrowserEvent( Widget widget, Event event )
{
return true;
}
/**
* {@inheritDoc}
* Override in subclass if using the default constructor.
*/
public int getEventBits()
{
return m_eventBits;
}
}
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Revision |
Author |
Commited |
Message |
2
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GeorgeS
|
Sun 07 Feb, 2010 12:50:58 +0000 |
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