/**
 * Copyright 2010 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 org.waveprotocol.box.webclient.client.events;
import com.google.gwt.event.shared.GwtEvent;

import org.waveprotocol.wave.model.util.Preconditions;
import org.waveprotocol.wave.model.waveref.WaveRef;

public class WaveSelectionEvent extends GwtEvent<WaveSelectionEventHandler> {
  public static final GwtEvent.Type<WaveSelectionEventHandler> TYPE = new GwtEvent.Type<WaveSelectionEventHandler>();
  private final WaveRef waveRef;

  public WaveSelectionEvent(WaveRef waveRef) {
    this.waveRef = Preconditions.checkNotNull(waveRef,"null waveref");
  }

  @Override
  public Type<WaveSelectionEventHandler> getAssociatedType() {
    return TYPE;
  }

  @Override
  protected void dispatch(WaveSelectionEventHandler handler) {
    handler.onSelection(waveRef);
  }

}