/*===============================================================================
Copyright (c) 2012-2014 Qualcomm Connected Experiences, Inc. All Rights Reserved.

Vuforia is a trademark of QUALCOMM Incorporated, registered in the United States
and other countries. Trademarks of QUALCOMM Incorporated are used with permission.
===============================================================================*/

package com.hoperun.cordova.vuforia;

import com.vuforia.State;


//  Interface to be implemented by the activity which uses ApplicationSession
public interface ApplicationControl
{

    // To be called to initialize the trackers
    boolean doInitTrackers();


    // To be called to load the trackers' data
    boolean doLoadTrackersData();


    // To be called to start tracking with the initialized trackers and their
    // loaded data
    boolean doStartTrackers();


    // To be called to stop the trackers
    boolean doStopTrackers();


    // To be called to destroy the trackers' data
    boolean doUnloadTrackersData();


    // To be called to deinitialize the trackers
    boolean doDeinitTrackers();


    // This callback is called after the Vuforia initialization is complete,
    // the trackers are initialized, their data loaded and
    // tracking is ready to start
    void onInitARDone(ApplicationException e);


    // This callback is called every cycle
    void onVuforiaUpdate(State state);


    // This callback is called on Vuforia resume
    void onVuforiaResumed();


    // This callback is called once Vuforia has been started
    void onVuforiaStarted();


}