/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsDeviceSensors_h

#define nsDeviceSensors_h

#include "nsIDeviceSensors.h"

#include "nsCOMArray.h"

#include "nsTArray.h"

#include "nsCOMPtr.h"

#include "nsITimer.h"

#include "mozilla/dom/DeviceMotionEvent.h"

#include "mozilla/TimeStamp.h"

#include "mozilla/HalSensor.h"

#include "nsDataHashtable.h"

class nsIDOMWindow;

class nsIDocument;

namespace mozilla {

namespace dom {

class EventTarget;

} // namespace dom

} // namespace mozilla

class nsDeviceSensors : public nsIDeviceSensors, public mozilla::hal::ISensorObserver

{

  typedef mozilla::dom::DeviceAccelerationInit DeviceAccelerationInit;

  typedef mozilla::dom::DeviceRotationRateInit DeviceRotationRateInit;

public:

  NS_DECL_ISUPPORTS

  NS_DECL_NSIDEVICESENSORS

  nsDeviceSensors();

  void Notify(const mozilla::hal::SensorData& aSensorData) override;

private:

  virtual ~nsDeviceSensors();

  // sensor -> window listener

  nsTArray<nsTArray<nsIDOMWindow*>* > mWindowListeners;

  void FireDOMLightEvent(mozilla::dom::EventTarget* aTarget,

                         double value);

  void FireDOMProximityEvent(mozilla::dom::EventTarget* aTarget,

                             double aValue,

                             double aMin,

                             double aMax);

  void FireDOMUserProximityEvent(mozilla::dom::EventTarget* aTarget,

                                 bool aNear);

  void FireDOMOrientationEvent(mozilla::dom::EventTarget* target,

                               double aAlpha,

                               double aBeta,

                               double aGamma,

                               bool aIsAbsolute);

  void FireDOMMotionEvent(nsIDocument* domDoc,

                          mozilla::dom::EventTarget* target,

                          uint32_t type,

                          PRTime timestamp,

                          double x,

                          double y,

                          double z);

  inline bool IsSensorEnabled(uint32_t aType) {

    return mWindowListeners[aType]->Length() > 0;

  }

  bool IsSensorAllowedByPref(uint32_t aType, nsIDOMWindow* aWindow);

  mozilla::TimeStamp mLastDOMMotionEventTime;

  bool mIsUserProximityNear;

  mozilla::Maybe<DeviceAccelerationInit> mLastAcceleration;

  mozilla::Maybe<DeviceAccelerationInit> mLastAccelerationIncludingGravity;

  mozilla::Maybe<DeviceRotationRateInit> mLastRotationRate;

};

#endif