/**
 * 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;

import com.google.gwt.core.client.GWT;
import com.google.gwt.event.shared.GwtEvent;
import com.google.gwt.event.shared.HandlerManager;
import com.google.gwt.event.shared.HandlerRegistration;

import org.waveprotocol.box.webclient.client.events.DebugMessageEvent;
import org.waveprotocol.box.webclient.client.events.DebugMessageEventHandler;
import org.waveprotocol.box.webclient.client.events.NetworkStatusEvent;
import org.waveprotocol.box.webclient.client.events.NetworkStatusEventHandler;
import org.waveprotocol.box.webclient.client.events.WaveCreationEvent;
import org.waveprotocol.box.webclient.client.events.WaveCreationEventHandler;
import org.waveprotocol.box.webclient.client.events.WaveOpenEvent;
import org.waveprotocol.box.webclient.client.events.WaveOpenEventHandler;
import org.waveprotocol.box.webclient.client.events.WaveSelectionEvent;
import org.waveprotocol.box.webclient.client.events.WaveSelectionEventHandler;

public class ClientEvents {
  private static final ClientEvents INSTANCE = GWT.create(ClientEvents.class);

  public static ClientEvents get() {
    return INSTANCE;
  }

  private final HandlerManager handlerManager = new HandlerManager(this);

  public HandlerRegistration addDebugMessageHandler(
      DebugMessageEventHandler handler) {
    return handlerManager.addHandler(DebugMessageEvent.TYPE, handler);
  }

  public HandlerRegistration addNetworkStatusEventHandler(
      NetworkStatusEventHandler handler) {
    return handlerManager.addHandler(NetworkStatusEvent.TYPE, handler);
  }

  public HandlerRegistration addWaveCreationEventHandler(
      WaveCreationEventHandler handler) {
    return handlerManager.addHandler(WaveCreationEvent.TYPE, handler);
  }

  public HandlerRegistration addWaveOpenEventHandler(
      WaveOpenEventHandler handler) {
    return handlerManager.addHandler(WaveOpenEvent.TYPE, handler);
  }

  public HandlerRegistration addWaveSelectionEventHandler(
      WaveSelectionEventHandler handler) {
    return handlerManager.addHandler(WaveSelectionEvent.TYPE, handler);
  }

  public void fireEvent(GwtEvent<?> event) {
    handlerManager.fireEvent(event);
  }
}