package com.akjava.gwt.lib.hangouts.client.av;
import java.util.ArrayList;
import java.util.List;
import com.akjava.gwt.lib.hangouts.client.av.events.HasSpeakersEvent;
import com.akjava.gwt.lib.hangouts.client.av.listeners.HasSpeakersListener;
public class OnHasSpeakers {
private OnHasSpeakers(){}
private static native void registListener()/*-{
$wnd.gapi.hangout.av.onHasSpeakers.add(@com.akjava.gwt.lib.hangouts.client.av.OnHasSpeakers::fireListener(Lcom/akjava/gwt/lib/hangouts/client/av/events/HasSpeakersEvent;));
}-*/;
private static native void unregistListener()/*-{
$wnd.gapi.hangout.av.onHasSpeakers.remove(@com.akjava.gwt.lib.hangouts.client.av.OnHasSpeakers::fireListener(Lcom/akjava/gwt/lib/hangouts/client/av/events/HasSpeakersEvent;));
}-*/;
public static void add(HasSpeakersListener listener){
if(listeners==null){
listeners=new ArrayList<HasSpeakersListener>();
listeners.add(listener);
registListener();
}else{
listeners.add(listener);
}
}
public static void remove(HasSpeakersListener listener){
if(listeners==null){
}else{
listeners.remove(listener);
if(listeners.size()==0){
unregistListener();
listeners=null;
}
}
}
private static List<HasSpeakersListener> listeners;
synchronized static void fireListener(HasSpeakersEvent event){
for(HasSpeakersListener listener:listeners){
listener.onHasSpeakers(event);
}
}
}