1 /*
   2  * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package com.sun.javafx.ext.device.ios.sensors;
  26 
  27 
  28 import java.util.ArrayList;
  29 import java.util.List;
  30 
  31 public class IOSMotionManager {
  32 
  33     public interface Listener {
  34         void handleMotion(final float x, final float y, final float z);
  35     }
  36 
  37     static {
  38         _init();
  39     }
  40 
  41     private static native void _init();
  42 
  43     public static native boolean isAccelerometerAvailable();
  44     public static native boolean isGyroAvailable();
  45 
  46 
  47     private static List<Listener> accelerationListeners = new ArrayList<Listener>();
  48     private static List<Listener> rotationListeners = new ArrayList<Listener>();
  49 
  50     public static void addAccelerationListener(final Listener listener) {
  51         accelerationListeners.add(listener);
  52     }
  53 
  54     public static void removeAccelerationListener(final Listener listener) {
  55         accelerationListeners.remove(listener);
  56     }
  57 
  58     public static void addRotationListener(final Listener listener) {
  59         rotationListeners.add(listener);
  60     }
  61 
  62     public static void removeRotationListener(final Listener listener) {
  63         rotationListeners.remove(listener);
  64     }
  65 
  66 
  67     private static void didAccelerate(final float x, final float y, final float z) {
  68         for (Listener listener : accelerationListeners) {
  69             listener.handleMotion(x, y, z);
  70         }
  71     }
  72 
  73     private static void didRotate(final float x, final float y, final float z) {
  74         for (Listener listener : rotationListeners) {
  75             listener.handleMotion(x, y, z);
  76         }
  77     }
  78 }