dom/camera/FallbackCameraControl.cpp

   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/. */
   4
   5 #include "DOMCameraControl.h"
   6 #include "CameraControlImpl.h"
   7
   8 using namespace mozilla;
   9
  10 /**
  11  * Fallback camera control subclass.  Can be used as a template for the
  12  * definition of new camera support classes.
  13  */
  14 class nsFallbackCameraControl : public CameraControlImpl
  15 {
  16 public:
  17   nsFallbackCameraControl(uint32_t aCameraId, nsIThread* aCameraThread, nsDOMCameraControl* aDOMCameraControl, nsICameraGetCameraCallback* onSuccess, nsICameraErrorCallback* onError, uint64_t aWindowId);
  18
  19   const char* GetParameter(const char* aKey);
  20   const char* GetParameterConstChar(uint32_t aKey);
  21   double GetParameterDouble(uint32_t aKey);
  22   void GetParameter(uint32_t aKey, nsTArray<dom::CameraRegion>& aRegions);
  23   void SetParameter(const char* aKey, const char* aValue);
  24   void SetParameter(uint32_t aKey, const char* aValue);
  25   void SetParameter(uint32_t aKey, double aValue);
  26   void SetParameter(uint32_t aKey, const nsTArray<dom::CameraRegion>& aRegions);
  27   nsresult PushParameters();
  28
  29 protected:
  30   ~nsFallbackCameraControl();
  31
  32   nsresult GetPreviewStreamImpl(GetPreviewStreamTask* aGetPreviewStream);
  33   nsresult StartPreviewImpl(StartPreviewTask* aStartPreview);
  34   nsresult StopPreviewImpl(StopPreviewTask* aStopPreview);
  35   nsresult AutoFocusImpl(AutoFocusTask* aAutoFocus);
  36   nsresult TakePictureImpl(TakePictureTask* aTakePicture);
  37   nsresult StartRecordingImpl(StartRecordingTask* aStartRecording);
  38   nsresult StopRecordingImpl(StopRecordingTask* aStopRecording);
  39   nsresult PushParametersImpl();
  40   nsresult PullParametersImpl();
  41
  42 private:
  43   nsFallbackCameraControl(const nsFallbackCameraControl&) MOZ_DELETE;
  44   nsFallbackCameraControl& operator=(const nsFallbackCameraControl&) MOZ_DELETE;
  45 };
  46
  47 /**
  48  * Stub implementation of the DOM-facing camera control constructor.
  49  *
  50  * This should never get called--it exists to keep the linker happy; if
  51  * implemented, it should construct (e.g.) nsFallbackCameraControl and
  52  * store a reference in the 'mCameraControl' member (which is why it is
  53  * defined here).
  54  */
  55 nsDOMCameraControl::nsDOMCameraControl(uint32_t aCameraId, nsIThread* aCameraThread, nsICameraGetCameraCallback* onSuccess, nsICameraErrorCallback* onError, uint64_t aWindowId)
  56 {
  57 }
  58
  59 /**
  60  * Stub implemetations of the fallback camera control.
  61  *
  62  * None of these should ever get called--they exist to keep the linker happy,
  63  * and may be used as templates for new camera support classes.
  64  */
  65 nsFallbackCameraControl::nsFallbackCameraControl(uint32_t aCameraId, nsIThread* aCameraThread, nsDOMCameraControl* aDOMCameraControl, nsICameraGetCameraCallback* onSuccess, nsICameraErrorCallback* onError, uint64_t aWindowId)
  66   : CameraControlImpl(aCameraId, aCameraThread, aWindowId)
  67 {
  68 }
  69
  70 nsFallbackCameraControl::~nsFallbackCameraControl()
  71 {
  72 }
  73
  74 const char*
  75 nsFallbackCameraControl::GetParameter(const char* aKey)
  76 {
  77   return nullptr;
  78 }
  79
  80 const char*
  81 nsFallbackCameraControl::GetParameterConstChar(uint32_t aKey)
  82 {
  83   return nullptr;
  84 }
  85
  86 double
  87 nsFallbackCameraControl::GetParameterDouble(uint32_t aKey)
  88 {
  89   return NAN;
  90 }
  91
  92 void
  93 nsFallbackCameraControl::GetParameter(uint32_t aKey, nsTArray<dom::CameraRegion>& aRegions)
  94 {
  95 }
  96
  97 void
  98 nsFallbackCameraControl::SetParameter(const char* aKey, const char* aValue)
  99 {
 100 }
 101
 102 void
 103 nsFallbackCameraControl::SetParameter(uint32_t aKey, const char* aValue)
 104 {
 105 }
 106
 107 void
 108 nsFallbackCameraControl::SetParameter(uint32_t aKey, double aValue)
 109 {
 110 }
 111
 112 void
 113 nsFallbackCameraControl::SetParameter(uint32_t aKey, const nsTArray<dom::CameraRegion>& aRegions)
 114 {
 115 }
 116
 117 nsresult
 118 nsFallbackCameraControl::PushParameters()
 119 {
 120   return NS_ERROR_NOT_IMPLEMENTED;
 121 }
 122
 123 nsresult
 124 nsFallbackCameraControl::GetPreviewStreamImpl(GetPreviewStreamTask* aGetPreviewStream)
 125 {
 126   return NS_ERROR_NOT_IMPLEMENTED;
 127 }
 128
 129 nsresult
 130 nsFallbackCameraControl::StartPreviewImpl(StartPreviewTask* aGetPreviewStream)
 131 {
 132   return NS_ERROR_NOT_IMPLEMENTED;
 133 }
 134
 135 nsresult
 136 nsFallbackCameraControl::StopPreviewImpl(StopPreviewTask* aGetPreviewStream)
 137 {
 138   return NS_ERROR_NOT_IMPLEMENTED;
 139 }
 140
 141 nsresult
 142 nsFallbackCameraControl::AutoFocusImpl(AutoFocusTask* aAutoFocus)
 143 {
 144   return NS_ERROR_NOT_IMPLEMENTED;
 145 }
 146
 147 nsresult
 148 nsFallbackCameraControl::TakePictureImpl(TakePictureTask* aTakePicture)
 149 {
 150   return NS_ERROR_NOT_IMPLEMENTED;
 151 }
 152
 153 nsresult
 154 nsFallbackCameraControl::StartRecordingImpl(StartRecordingTask* aStartRecording)
 155 {
 156   return NS_ERROR_NOT_IMPLEMENTED;
 157 }
 158
 159 nsresult
 160 nsFallbackCameraControl::StopRecordingImpl(StopRecordingTask* aStopRecording)
 161 {
 162   return NS_ERROR_NOT_IMPLEMENTED;
 163 }
 164
 165 nsresult
 166 nsFallbackCameraControl::PushParametersImpl()
 167 {
 168   return NS_ERROR_NOT_IMPLEMENTED;
 169 }
 170
 171 nsresult
 172 nsFallbackCameraControl::PullParametersImpl()
 173 {
 174   return NS_ERROR_NOT_IMPLEMENTED;
 175 }