The Tor Browser: dom/camera/FallbackCameraControl.cpp@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

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

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

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

     5 #include "CameraControlImpl.h"

     7 using namespace mozilla;

     8 using namespace mozilla::dom;

    10 namespace mozilla {

    11   class RecorderProfileManager;

    13   namespace layers {

    14     class GraphicBufferLocked;

    15   }

    16 }

    18 /**

    19  * Fallback camera control subclass. Can be used as a template for the

    20  * definition of new camera support classes.

    21  */

    22 class FallbackCameraControl : public CameraControlImpl

    23 {

    24 public:

    25   FallbackCameraControl(uint32_t aCameraId) : CameraControlImpl(aCameraId) { }

    27   void OnAutoFocusComplete(bool aSuccess);

    28   void OnAutoFocusMoving(bool aIsMoving) { }

    29   void OnTakePictureComplete(uint8_t* aData, uint32_t aLength) { }

    30   void OnTakePictureError() { }

    31   void OnNewPreviewFrame(layers::GraphicBufferLocked* aBuffer) { }

    32   void OnRecorderEvent(int msg, int ext1, int ext2) { }

    33   void OnError(CameraControlListener::CameraErrorContext aWhere,

    34                CameraControlListener::CameraError aError) { }

    36   virtual nsresult Set(uint32_t aKey, const nsAString& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    37   virtual nsresult Get(uint32_t aKey, nsAString& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    38   virtual nsresult Set(uint32_t aKey, double aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    39   virtual nsresult Get(uint32_t aKey, double& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    40   virtual nsresult Set(uint32_t aKey, int32_t aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    41   virtual nsresult Get(uint32_t aKey, int32_t& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    42   virtual nsresult Set(uint32_t aKey, int64_t aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    43   virtual nsresult Get(uint32_t aKey, int64_t& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    44   virtual nsresult Set(uint32_t aKey, const Size& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    45   virtual nsresult Get(uint32_t aKey, Size& aValue) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    46   virtual nsresult Set(uint32_t aKey, const nsTArray<Region>& aRegions) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    47   virtual nsresult Get(uint32_t aKey, nsTArray<Region>& aRegions) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    49   virtual nsresult SetLocation(const Position& aLocation) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    51   virtual nsresult Get(uint32_t aKey, nsTArray<Size>& aSizes) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    52   virtual nsresult Get(uint32_t aKey, nsTArray<nsString>& aValues) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    53   virtual nsresult Get(uint32_t aKey, nsTArray<double>& aValues) MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    55   nsresult PushParameters() { return NS_ERROR_FAILURE; }

    56   nsresult PullParameters() { return NS_ERROR_FAILURE; }

    58 protected:

    59   ~FallbackCameraControl();

    61   virtual nsresult StartPreviewImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    62   virtual nsresult StopPreviewImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    63   virtual nsresult AutoFocusImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    64   virtual nsresult StartFaceDetectionImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    65   virtual nsresult StopFaceDetectionImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    66   virtual nsresult TakePictureImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    67   virtual nsresult StartRecordingImpl(DeviceStorageFileDescriptor* aFileDescriptor,

    68                                       const StartRecordingOptions* aOptions = nullptr) MOZ_OVERRIDE

    69                                         { return NS_ERROR_FAILURE; }

    70   virtual nsresult StopRecordingImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    71   virtual nsresult ResumeContinuousFocusImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    72   virtual nsresult PushParametersImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    73   virtual nsresult PullParametersImpl() MOZ_OVERRIDE { return NS_ERROR_FAILURE; }

    74   virtual already_AddRefed<RecorderProfileManager> GetRecorderProfileManagerImpl() MOZ_OVERRIDE { return nullptr; }

    76 private:

    77   FallbackCameraControl(const FallbackCameraControl&) MOZ_DELETE;

    78   FallbackCameraControl& operator=(const FallbackCameraControl&) MOZ_DELETE;

    79 };

The Tor Browser / file revision

dom/camera/FallbackCameraControl.cpp@97036ab72558

dom/camera/FallbackCameraControl.cpp