dom/system/nsDeviceSensors.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef nsDeviceSensors_h
   8 #define nsDeviceSensors_h
   9
  10 #include "nsIDeviceSensors.h"
  11 #include "nsCOMArray.h"
  12 #include "nsTArray.h"
  13 #include "nsCOMPtr.h"
  14 #include "mozilla/dom/DeviceMotionEvent.h"
  15 #include "mozilla/TimeStamp.h"
  16 #include "mozilla/HalSensor.h"
  17
  18 class nsIDOMWindow;
  19
  20 namespace mozilla::dom {
  21 class Document;
  22 class EventTarget;
  23 }  // namespace mozilla::dom
  24
  25 class nsDeviceSensors : public nsIDeviceSensors,
  26                         public mozilla::hal::ISensorObserver {
  27   using DeviceAccelerationInit = mozilla::dom::DeviceAccelerationInit;
  28   using DeviceRotationRateInit = mozilla::dom::DeviceRotationRateInit;
  29
  30  public:
  31   NS_DECL_ISUPPORTS
  32   NS_DECL_NSIDEVICESENSORS
  33
  34   nsDeviceSensors();
  35
  36   void Notify(const mozilla::hal::SensorData& aSensorData) override;
  37
  38  private:
  39   virtual ~nsDeviceSensors();
  40
  41   // sensor -> window listener
  42   nsTArray<nsTArray<nsIDOMWindow*>*> mWindowListeners;
  43
  44   void FireDOMLightEvent(mozilla::dom::EventTarget* aTarget, double value);
  45
  46   void MaybeFireDOMUserProximityEvent(mozilla::dom::EventTarget* aTarget,
  47                                       double aValue, double aMax);
  48
  49   void FireDOMUserProximityEvent(mozilla::dom::EventTarget* aTarget,
  50                                  bool aNear);
  51
  52   void FireDOMOrientationEvent(mozilla::dom::EventTarget* target, double aAlpha,
  53                                double aBeta, double aGamma, bool aIsAbsolute);
  54
  55   void FireDOMMotionEvent(mozilla::dom::Document* domDoc,
  56                           mozilla::dom::EventTarget* target, uint32_t type,
  57                           PRTime timestamp, double x, double y, double z);
  58
  59   inline bool IsSensorEnabled(uint32_t aType) {
  60     return mWindowListeners[aType]->Length() > 0;
  61   }
  62
  63   bool IsSensorAllowedByPref(uint32_t aType, nsIDOMWindow* aWindow);
  64
  65   mozilla::TimeStamp mLastDOMMotionEventTime;
  66   bool mIsUserProximityNear;
  67   mozilla::Maybe<DeviceAccelerationInit> mLastAcceleration;
  68   mozilla::Maybe<DeviceAccelerationInit> mLastAccelerationIncludingGravity;
  69   mozilla::Maybe<DeviceRotationRateInit> mLastRotationRate;
  70 };
  71
  72 #endif