device/vibration/vibration_manager_impl_android.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "device/vibration/vibration_manager_impl_android.h"
   6
   7 #include "device/vibration/vibration_manager_impl.h"
   8 #include "jni/VibrationProvider_jni.h"
   9
  10 using base::android::AttachCurrentThread;
  11
  12 namespace device {
  13
  14 namespace {
  15 const int64 kMinimumVibrationDurationMs = 1;  // 1 millisecond
  16 const int64 kMaximumVibrationDurationMs = 10000;  // 10 seconds
  17 }
  18
  19 VibrationManagerImplAndroid::VibrationManagerImplAndroid(
  20     mojo::InterfaceRequest<VibrationManager> request)
  21     : binding_(this, request.Pass()) {
  22   j_vibration_provider_.Reset(
  23       Java_VibrationProvider_create(AttachCurrentThread(),
  24                                     base::android::GetApplicationContext()));
  25 }
  26
  27 VibrationManagerImplAndroid::~VibrationManagerImplAndroid() {
  28 }
  29
  30 // static
  31 bool VibrationManagerImplAndroid::Register(JNIEnv* env) {
  32   return RegisterNativesImpl(env);
  33 }
  34
  35 void VibrationManagerImplAndroid::Vibrate(int64 milliseconds) {
  36   // Though the Blink implementation already sanitizes vibration times, don't
  37   // trust any values passed from the client.
  38   int64 sanitized_milliseconds = std::max(kMinimumVibrationDurationMs,
  39       std::min(milliseconds, kMaximumVibrationDurationMs));
  40
  41   Java_VibrationProvider_vibrate(AttachCurrentThread(),
  42                                  j_vibration_provider_.obj(),
  43                                  sanitized_milliseconds);
  44 }
  45
  46 void VibrationManagerImplAndroid::Cancel() {
  47   Java_VibrationProvider_cancelVibration(AttachCurrentThread(),
  48                                          j_vibration_provider_.obj());
  49 }
  50
  51 // static
  52 void VibrationManagerImpl::Create(
  53     mojo::InterfaceRequest<VibrationManager> request) {
  54   new VibrationManagerImplAndroid(request.Pass());
  55 }
  56
  57 }  // namespace device