/*
 * Copyright 2007 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.*;

/**
 * A controller which converts native DOM mouse events to framework
 * {@link MouseEvent}s.
 */
public class MouseController extends ControllerAdaptor
{
    private final MouseHandler m_handler;

    public MouseController( int eventBits, Class id, MouseHandler handler )
    {
        super( eventBits, id );
        m_handler = handler;
    }

    public void onBrowserEvent( Widget widget, Event event )
    {
        processEvent( widget, event );
    }

    protected void processEvent( Widget widget, Event event )
    {
        switch ( DOM.eventGetType( event ) )
        {
            case Event.ONMOUSEDOWN:
                onMouseDown( new MouseEvent( widget, event ) );
                break;

            case Event.ONMOUSEMOVE:
                onMouseMove( new MouseEvent( widget, event ) );
                break;

            case Event.ONMOUSEUP:
                onMouseUp( new MouseEvent( widget, event ) );
                break;
        }
    }

    protected void onMouseDown( MouseEvent e )
    {
        m_handler.onMouseDown( e );
    }

    protected void onMouseMove( MouseEvent e )
    {
        m_handler.onMouseMove( e );
    }

    protected void onMouseUp( MouseEvent e )
    {
        m_handler.onMouseUp( e );
    }
}