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nsDeviceSensors.h (2388B)

      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 "mozilla/HalSensor.h"
     11 #include "mozilla/TimeStamp.h"
     12 #include "mozilla/dom/DeviceMotionEvent.h"
     13 #include "nsCOMArray.h"
     14 #include "nsCOMPtr.h"
     15 #include "nsIDeviceSensors.h"
     16 #include "nsTArray.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