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// Copyright 2014 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.
#ifndef CONTENT_RENDERER_DEVICE_SENSORS_DEVICE_ORIENTATION_EVENT_PUMP_H_
#define CONTENT_RENDERER_DEVICE_SENSORS_DEVICE_ORIENTATION_EVENT_PUMP_H_
#include "base/macros.h"
#include "content/renderer/device_sensors/device_sensor_event_pump.h"
#include "services/device/public/cpp/generic_sensor/orientation_data.h"
#include "third_party/blink/public/platform/modules/device_orientation/web_device_orientation_listener.h"
namespace content {
class RenderThread;
class CONTENT_EXPORT DeviceOrientationEventPump
: public DeviceSensorEventPump<blink::WebDeviceOrientationListener> {
public:
// Angle threshold beyond which two orientation events are considered
// sufficiently different.
static const double kOrientationThreshold;
DeviceOrientationEventPump(RenderThread* thread, bool absolute);
~DeviceOrientationEventPump() override;
// PlatformEventObserver:
void SendStartMessage() override;
void SendStopMessage() override;
void SendFakeDataForTesting(void* fake_data) override;
protected:
// DeviceSensorEventPump:
void FireEvent() override;
void DidStartIfPossible() override;
void SendStartMessageImpl();
SensorEntry relative_orientation_sensor_;
SensorEntry absolute_orientation_sensor_;
private:
friend class DeviceOrientationEventPumpTest;
friend class DeviceAbsoluteOrientationEventPumpTest;
// DeviceSensorEventPump:
bool SensorsReadyOrErrored() const override;
void GetDataFromSharedMemory(device::OrientationData* data);
bool ShouldFireEvent(const device::OrientationData& data) const;
bool absolute_;
bool fall_back_to_absolute_orientation_sensor_;
bool should_suspend_absolute_orientation_sensor_ = false;
device::OrientationData data_;
DISALLOW_COPY_AND_ASSIGN(DeviceOrientationEventPump);
};
} // namespace content
#endif // CONTENT_RENDERER_DEVICE_SENSORS_DEVICE_ORIENTATION_EVENT_PUMP_H_
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