105 lines
3.0 KiB
C++
105 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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 DOM_CAMERA_CAMERAPREFERENCES_H
|
|
#define DOM_CAMERA_CAMERAPREFERENCES_H
|
|
|
|
#include "nsString.h"
|
|
#include "nsIObserver.h"
|
|
#ifdef MOZ_WIDGET_GONK
|
|
#include "mozilla/StaticPtr.h"
|
|
#endif
|
|
|
|
namespace mozilla {
|
|
|
|
template<class T> class StaticAutoPtr;
|
|
|
|
class CameraPreferences
|
|
#ifdef MOZ_WIDGET_GONK
|
|
: public nsIObserver
|
|
#endif
|
|
{
|
|
public:
|
|
#ifdef MOZ_WIDGET_GONK
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIOBSERVER
|
|
#endif
|
|
|
|
static bool Initialize();
|
|
static void Shutdown();
|
|
|
|
static bool GetPref(const char* aPref, nsACString& aVal);
|
|
static bool GetPref(const char* aPref, nsresult& aVal);
|
|
static bool GetPref(const char* aPref, uint32_t& aVal);
|
|
static bool GetPref(const char* aPref, bool& aVal);
|
|
|
|
protected:
|
|
static const uint32_t kPrefNotFound = UINT32_MAX;
|
|
static uint32_t PrefToIndex(const char* aPref);
|
|
|
|
static void PreferenceChanged(const char* aPref, void* aClosure);
|
|
static nsresult UpdatePref(const char* aPref, nsresult& aVar);
|
|
static nsresult UpdatePref(const char* aPref, uint32_t& aVar);
|
|
static nsresult UpdatePref(const char* aPref, nsACString& aVar);
|
|
static nsresult UpdatePref(const char* aPref, bool& aVar);
|
|
|
|
enum PrefValueType {
|
|
kPrefValueIsNsResult,
|
|
kPrefValueIsUint32,
|
|
kPrefValueIsCString,
|
|
kPrefValueIsBoolean
|
|
};
|
|
struct Pref {
|
|
const char* const mPref;
|
|
PrefValueType mValueType;
|
|
union {
|
|
// The 'mAsVoid' member must be first and is required to allow 'mValue'
|
|
// to be initialized with any pointer type, as not all of our platforms
|
|
// support the use of designated initializers; in their absence, only
|
|
// the first element of a union can be statically initialized, and
|
|
// 'void*' lets us stuff any pointer type into it.
|
|
void* mAsVoid;
|
|
StaticAutoPtr<nsCString>* mAsCString;
|
|
nsresult* mAsNsResult;
|
|
uint32_t* mAsUint32;
|
|
bool* mAsBoolean;
|
|
} mValue;
|
|
};
|
|
static Pref sPrefs[];
|
|
|
|
static StaticAutoPtr<nsCString> sPrefTestEnabled;
|
|
static StaticAutoPtr<nsCString> sPrefHardwareTest;
|
|
static StaticAutoPtr<nsCString> sPrefGonkParameters;
|
|
|
|
static nsresult sPrefCameraControlMethodErrorOverride;
|
|
static nsresult sPrefCameraControlAsyncErrorOverride;
|
|
|
|
static uint32_t sPrefCameraControlLowMemoryThresholdMB;
|
|
|
|
static bool sPrefCameraParametersIsLowMemory;
|
|
|
|
static bool sPrefCameraParametersPermission;
|
|
|
|
#ifdef MOZ_WIDGET_GONK
|
|
static StaticRefPtr<CameraPreferences> sObserver;
|
|
|
|
nsresult PreinitCameraHardware();
|
|
|
|
protected:
|
|
// Objects may be instantiated for use as observers.
|
|
CameraPreferences() { }
|
|
virtual ~CameraPreferences() { }
|
|
#else
|
|
private:
|
|
// Static class only.
|
|
CameraPreferences();
|
|
~CameraPreferences();
|
|
#endif
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // DOM_CAMERA_CAMERAPREFERENCES_H
|