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Diffstat (limited to 'widget/cocoa/nsCocoaFeatures.h')
| -rw-r--r-- | widget/cocoa/nsCocoaFeatures.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/widget/cocoa/nsCocoaFeatures.h b/widget/cocoa/nsCocoaFeatures.h new file mode 100644 index 000000000..597aff611 --- /dev/null +++ b/widget/cocoa/nsCocoaFeatures.h @@ -0,0 +1,42 @@ +/* -*- 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 OSXVersion(); + static int32_t OSXVersionMajor(); + static int32_t OSXVersionMinor(); + static int32_t OSXVersionBugFix(); + static bool OnYosemiteOrLater(); + static bool OnElCapitanOrLater(); + static bool OnSierraOrLater(); + + static bool IsAtLeastVersion(int32_t aMajor, int32_t aMinor, int32_t aBugFix=0); + + // These are utilities that do not change or depend on the value of mOSXVersion + // 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: + static void InitializeVersionNumbers(); + + static int32_t mOSXVersion; +}; +#endif // nsCocoaFeatures_h_ |