Android: rename DataFetcherImplAndroid -> SensorManagerAndroid.

content/browser/device_orientation/sensor_manager_android.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/browser/device_orientation/data_fetcher_impl_android.h"
+#include "content/browser/device_orientation/sensor_manager_android.h"
 
 #include <string.h>
 
 #include "base/android/jni_android.h"
 #include "base/memory/singleton.h"
 #include "base/metrics/histogram.h"
 #include "content/browser/device_orientation/inertial_sensor_consts.h"
 #include "jni/DeviceMotionAndOrientation_jni.h"
 
 using base::android::AttachCurrentThread;
 
 namespace {
 
 static void updateRotationVectorHistogram(bool value) {
   UMA_HISTOGRAM_BOOLEAN("InertialSensor.RotationVectorAndroidAvailable", value);
 }
 
 }
 
 namespace content {
 
-DataFetcherImplAndroid::DataFetcherImplAndroid()
+SensorManagerAndroid::SensorManagerAndroid()
     : number_active_device_motion_sensors_(0),
       device_motion_buffer_(NULL),
       device_orientation_buffer_(NULL),
       is_motion_buffer_ready_(false),
       is_orientation_buffer_ready_(false) {
   memset(received_motion_data_, 0, sizeof(received_motion_data_));
   device_orientation_.Reset(
       Java_DeviceMotionAndOrientation_getInstance(AttachCurrentThread()));
 }
 
-DataFetcherImplAndroid::~DataFetcherImplAndroid() {
+SensorManagerAndroid::~SensorManagerAndroid() {
 }
 
-bool DataFetcherImplAndroid::Register(JNIEnv* env) {
+bool SensorManagerAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
-DataFetcherImplAndroid* DataFetcherImplAndroid::GetInstance() {
-  return Singleton<DataFetcherImplAndroid,
-                   LeakySingletonTraits<DataFetcherImplAndroid> >::get();
+SensorManagerAndroid* SensorManagerAndroid::GetInstance() {
+  return Singleton<SensorManagerAndroid,
+                   LeakySingletonTraits<SensorManagerAndroid> >::get();
 }
 
-void DataFetcherImplAndroid::GotOrientation(
+void SensorManagerAndroid::GotOrientation(
     JNIEnv*, jobject, double alpha, double beta, double gamma) {
   base::AutoLock autolock(orientation_buffer_lock_);
 
   if (!device_orientation_buffer_)
     return;
 
   device_orientation_buffer_->seqlock.WriteBegin();
   device_orientation_buffer_->data.alpha = alpha;
   device_orientation_buffer_->data.hasAlpha = true;
   device_orientation_buffer_->data.beta = beta;
   device_orientation_buffer_->data.hasBeta = true;
   device_orientation_buffer_->data.gamma = gamma;
   device_orientation_buffer_->data.hasGamma = true;
   device_orientation_buffer_->seqlock.WriteEnd();
 
   if (!is_orientation_buffer_ready_) {
     SetOrientationBufferReadyStatus(true);
     updateRotationVectorHistogram(true);
   }
 }
 
-void DataFetcherImplAndroid::GotAcceleration(
+void SensorManagerAndroid::GotAcceleration(
     JNIEnv*, jobject, double x, double y, double z) {
   base::AutoLock autolock(motion_buffer_lock_);
 
   if (!device_motion_buffer_)
     return;
 
   device_motion_buffer_->seqlock.WriteBegin();
   device_motion_buffer_->data.accelerationX = x;
   device_motion_buffer_->data.hasAccelerationX = true;
   device_motion_buffer_->data.accelerationY = y;
   device_motion_buffer_->data.hasAccelerationY = true;
   device_motion_buffer_->data.accelerationZ = z;
   device_motion_buffer_->data.hasAccelerationZ = true;
   device_motion_buffer_->seqlock.WriteEnd();
 
   if (!is_motion_buffer_ready_) {
     received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION] = 1;
     CheckMotionBufferReadyToRead();
   }
 }
 
-void DataFetcherImplAndroid::GotAccelerationIncludingGravity(
+void SensorManagerAndroid::GotAccelerationIncludingGravity(
     JNIEnv*, jobject, double x, double y, double z) {
   base::AutoLock autolock(motion_buffer_lock_);
 
   if (!device_motion_buffer_)
     return;
 
   device_motion_buffer_->seqlock.WriteBegin();
   device_motion_buffer_->data.accelerationIncludingGravityX = x;
   device_motion_buffer_->data.hasAccelerationIncludingGravityX = true;
   device_motion_buffer_->data.accelerationIncludingGravityY = y;
   device_motion_buffer_->data.hasAccelerationIncludingGravityY = true;
   device_motion_buffer_->data.accelerationIncludingGravityZ = z;
   device_motion_buffer_->data.hasAccelerationIncludingGravityZ = true;
   device_motion_buffer_->seqlock.WriteEnd();
 
   if (!is_motion_buffer_ready_) {
     received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION_INCL_GRAVITY] = 1;
     CheckMotionBufferReadyToRead();
   }
 }
 
-void DataFetcherImplAndroid::GotRotationRate(
+void SensorManagerAndroid::GotRotationRate(
     JNIEnv*, jobject, double alpha, double beta, double gamma) {
   base::AutoLock autolock(motion_buffer_lock_);
 
   if (!device_motion_buffer_)
     return;
 
   device_motion_buffer_->seqlock.WriteBegin();
   device_motion_buffer_->data.rotationRateAlpha = alpha;
   device_motion_buffer_->data.hasRotationRateAlpha = true;
   device_motion_buffer_->data.rotationRateBeta = beta;
   device_motion_buffer_->data.hasRotationRateBeta = true;
   device_motion_buffer_->data.rotationRateGamma = gamma;
   device_motion_buffer_->data.hasRotationRateGamma = true;
   device_motion_buffer_->seqlock.WriteEnd();
 
   if (!is_motion_buffer_ready_) {
     received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] = 1;
     CheckMotionBufferReadyToRead();
   }
 }
 
-bool DataFetcherImplAndroid::Start(EventType event_type) {
+bool SensorManagerAndroid::Start(EventType event_type) {
   DCHECK(!device_orientation_.is_null());
   return Java_DeviceMotionAndOrientation_start(
       AttachCurrentThread(), device_orientation_.obj(),
       reinterpret_cast<intptr_t>(this), static_cast<jint>(event_type),
       kInertialSensorIntervalMillis);
 }
 
-void DataFetcherImplAndroid::Stop(EventType event_type) {
+void SensorManagerAndroid::Stop(EventType event_type) {
   DCHECK(!device_orientation_.is_null());
   Java_DeviceMotionAndOrientation_stop(
       AttachCurrentThread(), device_orientation_.obj(),
       static_cast<jint>(event_type));
 }
 
-int DataFetcherImplAndroid::GetNumberActiveDeviceMotionSensors() {
+int SensorManagerAndroid::GetNumberActiveDeviceMotionSensors() {
   DCHECK(!device_orientation_.is_null());
   return Java_DeviceMotionAndOrientation_getNumberActiveDeviceMotionSensors(
       AttachCurrentThread(), device_orientation_.obj());
 }
 
 
 // ----- Shared memory API methods
 
 // --- Device Motion
 
-bool DataFetcherImplAndroid::StartFetchingDeviceMotionData(
+bool SensorManagerAndroid::StartFetchingDeviceMotionData(
     DeviceMotionHardwareBuffer* buffer) {
   DCHECK(buffer);
   {
     base::AutoLock autolock(motion_buffer_lock_);
     device_motion_buffer_ = buffer;
     ClearInternalMotionBuffers();
   }
   bool success = Start(kTypeMotion);
 
   // If no motion data can ever be provided, the number of active device motion
   // sensors will be zero. In that case flag the shared memory buffer
   // as ready to read, as it will not change anyway.
   number_active_device_motion_sensors_ = GetNumberActiveDeviceMotionSensors();
   {
     base::AutoLock autolock(motion_buffer_lock_);
     CheckMotionBufferReadyToRead();
   }
   return success;
 }
 
-void DataFetcherImplAndroid::StopFetchingDeviceMotionData() {
+void SensorManagerAndroid::StopFetchingDeviceMotionData() {
   Stop(kTypeMotion);
   {
     base::AutoLock autolock(motion_buffer_lock_);
     if (device_motion_buffer_) {
       ClearInternalMotionBuffers();
       device_motion_buffer_ = NULL;
     }
   }
 }
 
-void DataFetcherImplAndroid::CheckMotionBufferReadyToRead() {
+void SensorManagerAndroid::CheckMotionBufferReadyToRead() {
   if (received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION] +
       received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION_INCL_GRAVITY] +
       received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] ==
       number_active_device_motion_sensors_) {
     device_motion_buffer_->seqlock.WriteBegin();
     device_motion_buffer_->data.interval = kInertialSensorIntervalMillis;
     device_motion_buffer_->seqlock.WriteEnd();
     SetMotionBufferReadyStatus(true);
 
     UMA_HISTOGRAM_BOOLEAN("InertialSensor.AccelerometerAndroidAvailable",
         received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION] > 0);
     UMA_HISTOGRAM_BOOLEAN(
         "InertialSensor.AccelerometerIncGravityAndroidAvailable",
         received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION_INCL_GRAVITY]
         > 0);
     UMA_HISTOGRAM_BOOLEAN("InertialSensor.GyroscopeAndroidAvailable",
         received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] > 0);
   }
 }
 
-void DataFetcherImplAndroid::SetMotionBufferReadyStatus(bool ready) {
+void SensorManagerAndroid::SetMotionBufferReadyStatus(bool ready) {
   device_motion_buffer_->seqlock.WriteBegin();
   device_motion_buffer_->data.allAvailableSensorsAreActive = ready;
   device_motion_buffer_->seqlock.WriteEnd();
   is_motion_buffer_ready_ = ready;
 }
 
-void DataFetcherImplAndroid::ClearInternalMotionBuffers() {
+void SensorManagerAndroid::ClearInternalMotionBuffers() {
   memset(received_motion_data_, 0, sizeof(received_motion_data_));
   number_active_device_motion_sensors_ = 0;
   SetMotionBufferReadyStatus(false);
 }
 
 // --- Device Orientation
 
-void DataFetcherImplAndroid::SetOrientationBufferReadyStatus(bool ready) {
+void SensorManagerAndroid::SetOrientationBufferReadyStatus(bool ready) {
   device_orientation_buffer_->seqlock.WriteBegin();
   device_orientation_buffer_->data.absolute = ready;
   device_orientation_buffer_->data.hasAbsolute = ready;
   device_orientation_buffer_->data.allAvailableSensorsAreActive = ready;
   device_orientation_buffer_->seqlock.WriteEnd();
   is_orientation_buffer_ready_ = ready;
 }
 
-bool DataFetcherImplAndroid::StartFetchingDeviceOrientationData(
+bool SensorManagerAndroid::StartFetchingDeviceOrientationData(
     DeviceOrientationHardwareBuffer* buffer) {
   DCHECK(buffer);
   {
     base::AutoLock autolock(orientation_buffer_lock_);
     device_orientation_buffer_ = buffer;
   }
   bool success = Start(kTypeOrientation);
 
   {
     base::AutoLock autolock(orientation_buffer_lock_);
     // If Start() was unsuccessful then set the buffer ready flag to true
     // to start firing all-null events.
     SetOrientationBufferReadyStatus(!success);
   }
 
   if (!success)
     updateRotationVectorHistogram(false);
 
   return success;
 }
 
-void DataFetcherImplAndroid::StopFetchingDeviceOrientationData() {
+void SensorManagerAndroid::StopFetchingDeviceOrientationData() {
   Stop(kTypeOrientation);
   {
     base::AutoLock autolock(orientation_buffer_lock_);
     if (device_orientation_buffer_) {
       SetOrientationBufferReadyStatus(false);
       device_orientation_buffer_ = NULL;
     }
   }
 }
 
 }  // namespace content