TouchStartToMouseDownHandler.java

/*
 * Copyright 2010 Daniel Kurka
 *
 * 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 com.googlecode.mgwt.dom.client.event.mouse;

import com.google.gwt.event.dom.client.MouseDownEvent;
import com.google.gwt.event.dom.client.MouseDownHandler;
import com.google.gwt.event.dom.client.TouchStartHandler;

/**
 * Convert TouchStartHandlers to mouse down handlers for non touch devices or dev mode
 *
 * @author Daniel Kurka
 */
public class TouchStartToMouseDownHandler implements MouseDownHandler {

  private final TouchStartHandler handler;

  public static int lastTouchId = 0;

  public TouchStartToMouseDownHandler(TouchStartHandler handler) {
    this.handler = handler;
  }

  @Override
  public void onMouseDown(MouseDownEvent event) {
    lastTouchId++;
    SimulatedTouchStartEvent simulatedTouchStartEvent = new SimulatedTouchStartEvent(event, lastTouchId);
    handler.onTouchStart(simulatedTouchStartEvent);
  }
}