Package com.google.gwt.topspin.ui.client

Source Code of com.google.gwt.topspin.ui.client.MouseDownEvent

/*
* Copyright 2008 Google Inc.
*
* 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.google.gwt.topspin.ui.client;

import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.events.client.Event;
import com.google.gwt.events.client.EventListener;
import com.google.gwt.events.client.EventListenerRemover;

/**
* An event fired when a mouse button is depressed within a widget.
*
* This event represents the native 'onmousedown' event.
*/
public class MouseDownEvent extends NativeEvent {

  public static final String NAME = "mousedown";

  /**
   * Adds a mousedown listener to the given native object.
   *
   * @param source the associated event source
   * @param nativeSource the native object that will fire the event
   * @param listener the listener to be notified of the event
   * @return a handle that may be used to remove this listener
   */
  public static EventListenerRemover addMouseDownListener(final Object source,
      JavaScriptObject nativeSource, final MouseDownListener listener) {
    return Event.addEventListener(MouseDownEvent.NAME, nativeSource,
        new EventListener() {
          public void handleEvent(Event event) {
            listener.onMouseDown(new MouseDownEvent(source, event));
          }
        });
  }

  /**
   * Creates a new mousedown event with the given source and browser event.
   *
   * @param sender the event source
   * @param nativeEvent the browser event
   */
  public MouseDownEvent(Object sender, Event nativeEvent) {
    super(sender, nativeEvent);
  }
}
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