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