summaryrefslogtreecommitdiffstats
path: root/widget/cocoa/nsCocoaFeatures.h
diff options
context:
space:
mode:
Diffstat (limited to 'widget/cocoa/nsCocoaFeatures.h')
-rw-r--r--widget/cocoa/nsCocoaFeatures.h42
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_