gecko-dev/dom/system/nsDeviceSensors.h
Tim Huang 5baaeb9625 Bug 1369319 - Part 1: Block device sensor events when 'privacy.resistFingerprinting' is true. r=arthuredelstein,bz
This patch adds a nsDeviceSensors::IsSensorEventBlocked() function to check
whether device sensor events should be blocked and replaces original
'device.sensors.enabled' check with this function. This function will not only
check 'privacy.resistFingerprinting' but also check 'device.sensors.enabled'.

MozReview-Commit-ID: 7NZiBHWN6y6

--HG--
extra : rebase_source : 54d4cd99e5dfb089f11b19b0b487ff5add34b69c
2017-06-20 11:10:06 +08:00

87 lines
2.6 KiB
C++

/* -*- 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;
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(class nsIDOMDocument *domDoc,
mozilla::dom::EventTarget* target,
uint32_t type,
PRTime timestamp,
double x,
double y,
double z);
bool mEnabled;
inline bool IsSensorEnabled(uint32_t aType) {
return mWindowListeners[aType]->Length() > 0;
}
bool AreSensorEventsDisabled(nsIDOMWindow* aWindow);
mozilla::TimeStamp mLastDOMMotionEventTime;
bool mIsUserProximityNear;
mozilla::Maybe<DeviceAccelerationInit> mLastAcceleration;
mozilla::Maybe<DeviceAccelerationInit> mLastAccelerationIncludingGravity;
mozilla::Maybe<DeviceRotationRateInit> mLastRotationRate;
};
#endif