nsCocoaFeatures.h - mozsearch

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/* -*- Mode: C++; tab-width: 20; 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 nsCocoaFeatures_h_

#define nsCocoaFeatures_h_

#include <stdint.h>

/// Note that this class assumes we support the platform we are running on.

/// For better or worse, if the version is unknown or less than what we

/// support, we set it to the minimum supported version. GetSystemVersion

/// is the only call that returns the unadjusted values.

class nsCocoaFeatures {

 public:

  static int32_t macOSVersion();

  static int32_t macOSVersionMajor();

  static int32_t macOSVersionMinor();

  static int32_t macOSVersionBugFix();

  static bool OnBigSurOrLater();

  static bool OnMontereyOrLater();

  static bool OnVenturaOrLater();

  static bool IsAtLeastVersion(int32_t aMajor, int32_t aMinor,

                               int32_t aBugFix = 0);

  static bool ProcessIsRosettaTranslated();

  // These are utilities that do not change or depend on the value of

  // mOSVersion and instead just encapsulate the encoding algorithm. Note that

  // GetVersion actually adjusts to the lowest supported OS, so it will always

  // return a "supported" version. GetSystemVersion does not make any

  // modifications.

  static void GetSystemVersion(int& aMajor, int& aMinor, int& aBugFix);

  static int32_t GetVersion(int32_t aMajor, int32_t aMinor, int32_t aBugFix);

  static int32_t ExtractMajorVersion(int32_t aVersion);

  static int32_t ExtractMinorVersion(int32_t aVersion);

  static int32_t ExtractBugFixVersion(int32_t aVersion);

 private:

  nsCocoaFeatures() = delete;  // Prevent instantiation.

  static void InitializeVersionNumbers();

  static int32_t mOSVersion;

};

#endif  // nsCocoaFeatures_h_