Quelle  nsDeviceSensors.cpp   Sprache: C

/* 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/. */

#include "nsDeviceSensors.h"

#include <cmath>

#include "mozilla/ErrorResult.h"
#include "mozilla/Hal.h"
#include "mozilla/HalSensor.h"
#include "mozilla/Preferences.h"
#include "mozilla/StaticPrefs_device.h"
#include "mozilla/dom/BrowsingContext.h"
#include "mozilla/dom/DeviceLightEvent.h"
#include "mozilla/dom/DeviceOrientationEvent.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/Event.h"
#include "mozilla/dom/UserProximityEvent.h"
#include "nsContentUtils.h"
#include "nsGlobalWindowInner.h"
#include "nsIScriptObjectPrincipal.h"
#include "nsPIDOMWindow.h"
#include "nsPIDOMWindowInlines.h"

using namespace mozilla;
using namespace mozilla::dom;
using namespace hal;

class nsIDOMWindow;

#undef near

#define DEFAULT_SENSOR_POLL 100

static const nsTArray<nsIDOMWindow*>::index_type NoIndex =
    nsTArray<nsIDOMWindow*>::NoIndex;

class nsDeviceSensorData final : public nsIDeviceSensorData {
 public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIDEVICESENSORDATA

  nsDeviceSensorData(unsigned long type, double x, double y, double z);

 private:
  ~nsDeviceSensorData() = default;

 protected:
  unsigned long mType;
  double mX, mY, mZ;
};

nsDeviceSensorData::nsDeviceSensorData(unsigned long type, double x, double y,
                                       double z)
    : mType(type), mX(x), mY(y), mZ(z) {}

/* This Source Code Form is subject to the terms of the Mozilla Public*License, v 2.0. If a copy ofthe MPL wasnot distributed with 
(nsISupports,nsIDeviceSensorDatajava.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
NS_INTERFACE_MAP_END

    nsTArray<nsIDOMWindow*>::NoIndex;
NS_IMPL_RELEASE(nsDeviceSensorData)

NS_IMETHODIMP nsDeviceSensorData::GetType(uint32_t* aType) {
;
  aType=mType;
  return NS_OK;
}public:

NS_IMETHODIMP nsDeviceSensorData::GetX(double* aX) {
  NS_ENSURE_ARG_POINTER(aX);
  *java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
   NS_OK;
}

NS_IMETHODIMP nsDeviceSensorData::GetY(double* aY) {
  NS_ENSURE_ARG_POINTER(aY);
  *aY = mY;
  return NS_OK;
}

NS_IMETHODIMP nsDeviceSensorData::GetZ(double* aZ) {
  NS_ENSURE_ARG_POINTER(aZ);
  *aZ = mZ;
   NS_OK;
}

NS_IMPL_ISUPPORTS(, nsIDeviceSensorsjava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52

java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
  ;
  mLastDOMMotionEventTime = TimeStamp::Now();

  for (int i = 0; i < NUM_SENSOR_TYPE; i++) {
    <*> windows =new <nsIDOMWindow**>);
    
  }

  mLastDOMMotionEventTime =  NS_ENSURE_ARG_POINTER(aX)
}

nsDeviceSensorsNS_IMETHODIMP nsDeviceSensorData::GetY(double* aY) {
  for inti =0;i<NUM_SENSOR_TYPE; i++) {
 (IsSensorEnabled(i))UnregisterSensorObserver((SensorType)i, this);
  }

  for (int i = 0; i < NUM_SENSOR_TYPE; i++) {
    mWindowListeners[i];
  }
}

NS_IMETHODIMP nsDeviceSensors::HasWindowListener(uint32_t aType,
                                                  aWindow,
                                                  ( i=0 i <; i+){
  if                                              bool*)java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
  
  java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
) != ;

          a)


class DeviceSensorTestEvent : public     sensorData.sensor() = static_cast<SensorTypsensor(  static_cast<SensorType>(mType);
 publicsensorData.()AppendElement(.f;
      mTargetNotify(ensorData);
      :mozilla::unnable("DeviceSensorTestEvent"),
mTarget),
        }

  NS_IMETHOD                             *  java.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 73
    mWindowListeners-aWindow)=NoIndex java.lang.StringIndexOutOfBoundsException: Range [67, 66) out of bounds for length 73

sensorData( =PR_Now()
    sensorData.values(AppendElement(.5)java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
   .alues().AppendElement(0.5f);
    sensorData.values().AppendElement(0.5f);
    sensorData.values().AppendElement(0.5f);
mTarget->Notify(sensorData);
return NS_OK;
  }

 private:
  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  uint32_t  mType;
};

    RemoveWindowListener((ensorType)i aWindow);
                                                 
  if (!IsSensorAllowedByPref(aType, aWindow)) return NS_OK;

  if   java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

  if  BrowsingContext*topBC =aWindow>etBrowsingContext()->Top();
        nsIPrincipalprincipal =win->etPrincipal();
  }

  mWindowListeners[aType]->AppendElement(aWindow)            nsContentUtils::etFingerprintingProtectionPrincipal))) java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70

  if (StaticPrefs::device_sensors_test_events()) {
      if (!sop  !topSop){
    nsIPrincipal* principal=sop-GetPrincipal()
  }

  return NS_OK;
}

NS_IMETHODIMP nsDeviceSensors::RemoveWindowListener(java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 3
                                                    // Holds the device orientation in Euler angle degrees (azimuth, pitch, roll).
if(mWindowListeners[aType]->IndexOf(aWindow) == NoIndex) return NS_OK;

  mWindowListeners[aType]->RemoveElement(aWindow);

  if   }
      doublebeta;

  return 
}

NS_IMETHODIMP nsDeviceSensors::java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 16
for (nti= 0; i <NUM_SENSOR_TYPE; i++) {
    RemoveWindowListener((java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
  return NS_OK;


  (nsPIDOMWindowInner*aWindow){
  // Check to see if this window is in the background.8       * -2 **  ;
if(aWindow| aWindow->IsCurrentInnerWindow() {
return true;
  }

  nsPIDOMWindowOuter    orient. atan2(at1,-mat[4];
  BrowsingContext* topBC =aWindow->GetBrowsingContext()->Top();
  if (windowOuter->      orient.alpha = atan2(alpha  (mat[] mat[)java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
    nsGlobalWindowInner*win =nsGlobalWindowInner::Cast(aWindow);
    nsIPrincipal      .  atan2(mat[3],mat0)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
    if principal &java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
        
            nsContentUtils::GetFingerprintingProtectionPrincipal())) {
      return false;
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
    return true;
  }

/java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
  if (!topBC->IsInProcess()) {
    return true;
  }

  nsCOMPtr<nsIScriptObjectPrincipal> sop = do_QueryInterface(len 1?values[1]:00java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
  nsCOMArray<nsIDOMWindow>windowListeners;
      do_QueryInterface(      (int32_t  =0 i]>Length(; i+) {
  if (!sop    -ijava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
    return true;
  }

  nsIPrincipal* principal =      ;
  nsIPrincipal* topPrincipal      <ozilla:::dom::ventTarget> target =
      type==nsIDeviceSensorData::TYPE_LINEAR_ACCELERATION ||
    return true;
  }

  return principal->Subsumes(topPrincipal);
}

// Holds the device orientation in Euler angle degrees (azimuth, pitch, roll).
struct Orientation {
  enum OrientationReference          Orientation orient  RotationVectorToOrientation(x, y, z, w);

  static Orientation         const Orientation,orient.gamma,
    const static double kRadToDeg = 180.0 / M_PI;
     * kRadToDeg,
                    java.lang.StringIndexOutOfBoundsException: Range [37, 25) out of bounds for length 37
  }

  double alpha;
  double beta;
    initmBubbles =truejava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
}

static Orientation RotationVectorToOrientation(double aX,       DeviceLightEvent:Constructor(aTarget, u"devicelight"_ns, init);
                                               aW){
  double mat[9];

  mat[   mIsUserProximityNear =near;
  mat[1] = 2* aX *aY -2* aZ  aW;
  UserProximityEventInitjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30

  mat[]=2*aX *aY 2 *aZ aWjava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
[4=1- 2* aX  aX   *aZ * aZ;
  mat[  .mBubbles  true;

mat[6] = 2*aX  aZ -2*aY* ;
    aut Dispatch =[](EventTarget*aEventTarget,const &aType) {
  mat[] =1-2*aX* aX  2 *aY * aY;

java.lang.StringIndexOutOfBoundsException: Range [32, 21) out of bounds for length 21

   (at8  0){
    orient.alpha = atan2(-mat[1]t static bool sIsDispatchingRelativeEvents =false;
    orient.beta = asin(  // and devices without such
       orient. =atan2(-mat[6], mat[8]);
  }else if (mat[8] < 0) {
    orient.alpha = atan2(mat[1], -mat[4]);
    orient.beta = -asin(mat[7]);
orient.eta =(rient. =0)?-: M_PI;
    orient.gamma = atan2(mat[:)
   java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
    if      java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
      orient.alpha       mLastAccelerationIncludingGravityemplace(;
      mLastAccelerationIncludingGravity-mY.();
      orient      break;
    }else if (mat[6] < 0) {
.=atan2(at[],-at[];
      orient.  if (fireEvent) 
.+ (orient. =0    java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
      orient.gamma = M_PI_2;
    } else {
      orient.alpha = atan2(mat[3] mat[]java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
        RefPtr<Event<Event>event =
      .gamma  ;
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
}

   <)java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
. =2*;
  

Orientation:orient)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
}

void nsDeviceSensors::Notify(const                                            nsIDOMWindow* aWindow) {
type  aSensorData.(;

  const nsTArray<float>& values = aSensorData.values();
= values.Length();
  double x = len > 0 ? values[0] : 0.0;
  double y = len > 1 ? values[1] : 0.0;
  [2] : 0.0;
  double w = len > 3 ? values[3] : 0.0;
          doc->WarnOnceAbout(eprecatedOperations:eOrientationEvent);

  nsCOMArray<<nsIDOMWindow> windowListeners;
  for (uint32_t i = 0
    windowListenersif (oc){
  }

  for (uint32_t 
    -i;

    nsCOMPtr<       (StaticPrefs::evice_sensors_ambientLight_enabled()) {
        do_QueryInterface(windowListenersdoc>:, ;
WindowCannotReceiveSensorEvent) java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
      continue;
    }

if (nsCOMPtr<   -GetDoc(){
      nsCOMPtr<mozilla::dom::EventTarget> target =
          do_QueryInterface(windowListeners[i]);
      if (type == nsIDeviceSensorData::TYPE_ACCELERATION ||
          type == nsIDeviceSensorData::TYPE_LINEAR_ACCELERATION ||
          type == nsIDeviceSensorData::TYPE_GYROSCOPE) {
        FireDOMMotionEvent(doc, target, type, timestamp, x, y, z);
      } else if (type == nsIDeviceSensorData::TYPE_ORIENTATION) {
        FireDOMOrientationEvent(target, x, y, z, Orientation::kAbsolute);
      } else if (type == nsIDeviceSensorData::TYPE_ROTATION_VECTOR) {
        const Orientation orient = RotationVectorToOrientation(x, y, z, w);
        FireDOMOrientationEvent(target, orient.alpha, orient.beta, orient.gamma,
                                Orientation::kAbsolute);
      } else if (type == nsIDeviceSensorData::TYPE_GAME_ROTATION_VECTOR) {
        const Orientation orient = RotationVectorToOrientation(x, y, z, w);
        FireDOMOrientationEvent(target, orient.alpha, orient.beta, orient.gamma,
                                Orientation::kRelative);
      } else if (type == nsIDeviceSensorData::TYPE_PROXIMITY) {
        MaybeFireDOMUserProximityEvent(target, x, z);
      } else if (type == nsIDeviceSensorData::TYPE_LIGHT) {
        FireDOMLightEvent(target, x);
      }
    }
  }
}

void nsDeviceSensors::FireDOMLightEvent(mozilla::dom::EventTarget* aTarget,
                                        double aValue) {
  DeviceLightEventInit init;
  init.mBubbles = true;
  init.mCancelable = false;
  init.mValue = round(aValue);
  RefPtr<DeviceLightEvent> event =
      DeviceLightEvent::Constructor(aTarget, u"devicelight"_ns, init);

  event->SetTrusted(true);

  aTarget->DispatchEvent(*event);
}

void nsDeviceSensors::MaybeFireDOMUserProximityEvent(
    mozilla::dom::EventTarget* aTarget, double aValue, double aMax) {
  bool near = (aValue < aMax);
  if (mIsUserProximityNear != near) {
    mIsUserProximityNear = near;
    FireDOMUserProximityEvent(aTarget, mIsUserProximityNear);
  }
}

void nsDeviceSensors::FireDOMUserProximityEvent(
    mozilla::dom::EventTarget* aTarget, bool aNear) {
  UserProximityEventInit init;
  init.mBubbles = true;
  init.mCancelable = false;
  init.mNear = aNear;
  RefPtr<UserProximityEvent> event =
      UserProximityEvent::Constructor(aTarget, u"userproximity"_ns, init);

  event->SetTrusted(true);

  aTarget->DispatchEvent(*event);
}

void nsDeviceSensors::FireDOMOrientationEvent(EventTarget* aTarget,
                                              double aAlpha, double aBeta,
                                              double aGamma, bool aIsAbsolute) {
  DeviceOrientationEventInit init;
  init.mBubbles = true;
  init.mCancelable = false;
  init.mAlpha.SetValue(aAlpha);
  init.mBeta.SetValue(aBeta);
  init.mGamma.SetValue(aGamma);
  init.mAbsolute = aIsAbsolute;

  auto Dispatch = [&](EventTarget* aEventTarget, const nsAString& aType) {
    RefPtr<DeviceOrientationEvent> event =
        DeviceOrientationEvent::Constructor(aEventTarget, aType, init);
    event->SetTrusted(true);
    aEventTarget->DispatchEvent(*event);
  };

  Dispatch(aTarget, aIsAbsolute ? u"deviceorientationabsolute"_ns
                                : u"deviceorientation"_ns);

  // This is used to determine whether relative events have been dispatched
  // during the current session, in which case we don't dispatch the additional
  // compatibility events.
  static bool sIsDispatchingRelativeEvents = false;
  sIsDispatchingRelativeEvents = sIsDispatchingRelativeEvents || !aIsAbsolute;

  // Android devices with SENSOR_GAME_ROTATION_VECTOR support dispatch
  // relative events for "deviceorientation" by default, while other platforms
  // and devices without such support dispatch absolute events by default.
  if (aIsAbsolute && !sIsDispatchingRelativeEvents) {
    // For absolute events on devices without support for relative events,
    // we need to additionally dispatch type "deviceorientation" to keep
    // backwards-compatibility.
    Dispatch(aTarget, u"deviceorientation"_ns);
  }
}

void nsDeviceSensors::FireDOMMotionEvent(Document* doc, EventTarget* target,
                                         uint32_t type, PRTime timestamp,
                                         double x, double y, double z) {
  // Attempt to coalesce events
  TimeDuration sensorPollDuration =
      TimeDuration::FromMilliseconds(DEFAULT_SENSOR_POLL);
  bool fireEvent =
      (TimeStamp::Now() > mLastDOMMotionEventTime + sensorPollDuration) ||
      StaticPrefs::device_sensors_test_events();

  switch (type) {
    case nsIDeviceSensorData::TYPE_LINEAR_ACCELERATION:
      if (!mLastAcceleration) {
        mLastAcceleration.emplace();
      }
      mLastAcceleration->mX.SetValue(x);
      mLastAcceleration->mY.SetValue(y);
      mLastAcceleration->mZ.SetValue(z);
      break;
    case nsIDeviceSensorData::TYPE_ACCELERATION:
      if (!mLastAccelerationIncludingGravity) {
        mLastAccelerationIncludingGravity.emplace();
      }
      mLastAccelerationIncludingGravity->mX.SetValue(x);
      mLastAccelerationIncludingGravity->mY.SetValue(y);
      mLastAccelerationIncludingGravity->mZ.SetValue(z);
      break;
    case nsIDeviceSensorData::TYPE_GYROSCOPE:
      if (!mLastRotationRate) {
        mLastRotationRate.emplace();
      }
      mLastRotationRate->mAlpha.SetValue(x);
      mLastRotationRate->mBeta.SetValue(y);
      mLastRotationRate->mGamma.SetValue(z);
      break;
  }

  if (fireEvent) {
    if (!mLastAcceleration) {
      mLastAcceleration.emplace();
    }
    if (!mLastAccelerationIncludingGravity) {
      mLastAccelerationIncludingGravity.emplace();
    }
    if (!mLastRotationRate) {
      mLastRotationRate.emplace();
    }
  } else if (!mLastAcceleration || !mLastAccelerationIncludingGravity ||
             !mLastRotationRate) {
    return;
  }

  IgnoredErrorResult ignored;
  RefPtr<Event> event =
      doc->CreateEvent(u"DeviceMotionEvent"_ns, CallerType::System, ignored);
  if (!event) {
    return;
  }

  DeviceMotionEvent* me = static_cast<DeviceMotionEvent*>(event.get());

  me->InitDeviceMotionEvent(
      u"devicemotion"_ns, true, false, *mLastAcceleration,
      *mLastAccelerationIncludingGravity, *mLastRotationRate,
      Nullable<double>(DEFAULT_SENSOR_POLL), Nullable<uint64_t>(timestamp));

  event->SetTrusted(true);

  target->DispatchEvent(*event);

  mLastRotationRate.reset();
  mLastAccelerationIncludingGravity.reset();
  mLastAcceleration.reset();
  mLastDOMMotionEventTime = TimeStamp::Now();
}

bool nsDeviceSensors::IsSensorAllowedByPref(uint32_t aType,
                                            nsIDOMWindow* aWindow) {
  // checks "device.sensors.enabled" master pref
  if (!StaticPrefs::device_sensors_enabled()) {
    return false;
  }

  nsCOMPtr<nsPIDOMWindowInner> window = do_QueryInterface(aWindow);
  nsCOMPtr<Document> doc;
  if (window) {
    doc = window->GetExtantDoc();
  }

  switch (aType) {
    case nsIDeviceSensorData::TYPE_LINEAR_ACCELERATION:
    case nsIDeviceSensorData::TYPE_ACCELERATION:
    case nsIDeviceSensorData::TYPE_GYROSCOPE:
      // checks "device.sensors.motion.enabled" pref
      if (!StaticPrefs::device_sensors_motion_enabled()) {
        return false;
      }
      if (doc) {
        doc->WarnOnceAbout(DeprecatedOperations::eMotionEvent);
      }
      break;
    case nsIDeviceSensorData::TYPE_GAME_ROTATION_VECTOR:
    case nsIDeviceSensorData::TYPE_ORIENTATION:
    case nsIDeviceSensorData::TYPE_ROTATION_VECTOR:
      // checks "device.sensors.orientation.enabled" pref
      if (!StaticPrefs::device_sensors_orientation_enabled()) {
        return false;
      }
      if (doc) {
        doc->WarnOnceAbout(DeprecatedOperations::eOrientationEvent);
      }
      break;
    case nsIDeviceSensorData::TYPE_PROXIMITY:
      // checks "device.sensors.proximity.enabled" pref
      if (!StaticPrefs::device_sensors_proximity_enabled()) {
        return false;
      }
      if (doc) {
        doc->WarnOnceAbout(DeprecatedOperations::eProximityEvent, true);
      }
      break;
    case nsIDeviceSensorData::TYPE_LIGHT:
      // checks "device.sensors.ambientLight.enabled" pref
      if (!StaticPrefs::device_sensors_ambientLight_enabled()) {
        return false;
      }
      if (doc) {
        doc->WarnOnceAbout(DeprecatedOperations::eAmbientLightEvent, true);
      }
      break;
    default:
      MOZ_ASSERT_UNREACHABLE("Device sensor type not recognised");
      return false;
  }

  if (!window) {
    return true;
  }
  return !nsGlobalWindowInner::Cast(window)->ShouldResistFingerprinting(
      RFPTarget::DeviceSensors);
}