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 "base/bind.h"
   8 #include "device/vibration/vibration_manager_impl.h"
   9 #include "jni/VibrationProvider_jni.h"
  10
  11 using base::android::AttachCurrentThread;
  12
  13 namespace device {
  14
  15 namespace {
  16 const int64 kMinimumVibrationDurationMs = 1;  // 1 millisecond
  17 const int64 kMaximumVibrationDurationMs = 10000;  // 10 seconds
  18 }
  19
  20 // static
  21 VibrationManagerImplAndroid* VibrationManagerImplAndroid::Create() {
  22   return new VibrationManagerImplAndroid();
  23 }
  24
  25 VibrationManagerImplAndroid::VibrationManagerImplAndroid() {
  26   j_vibration_provider_.Reset(
  27       Java_VibrationProvider_create(AttachCurrentThread(),
  28                                     base::android::GetApplicationContext()));
  29 }
  30
  31 VibrationManagerImplAndroid::~VibrationManagerImplAndroid() {
  32 }
  33
  34 // static
  35 bool VibrationManagerImplAndroid::Register(JNIEnv* env) {
  36   return RegisterNativesImpl(env);
  37 }
  38
  39 void VibrationManagerImplAndroid::Vibrate(int64 milliseconds) {
  40   // Though the Blink implementation already sanitizes vibration times, don't
  41   // trust any values passed from the client.
  42   int64 sanitized_milliseconds = std::max(kMinimumVibrationDurationMs,
  43       std::min(milliseconds, kMaximumVibrationDurationMs));
  44
  45   Java_VibrationProvider_vibrate(AttachCurrentThread(),
  46                                  j_vibration_provider_.obj(),
  47                                  sanitized_milliseconds);
  48 }
  49
  50 void VibrationManagerImplAndroid::Cancel() {
  51   Java_VibrationProvider_cancelVibration(AttachCurrentThread(),
  52                                          j_vibration_provider_.obj());
  53 }
  54
  55 // static
  56 void VibrationManagerImpl::Create(
  57     mojo::InterfaceRequest<VibrationManager> request) {
  58   BindToRequest(VibrationManagerImplAndroid::Create(), &request);
  59 }
  60
  61 }  // namespace device