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