206 lines
6.1 KiB
Plaintext
206 lines
6.1 KiB
Plaintext
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// This file makes some assumptions about the versions of OS X.
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// We are assuming that the minor and bugfix versions are less than 16.
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// There are MOZ_ASSERTs for that.
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// The formula for the version integer based on OS X version 10.minor.bugfix is
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// 0x1000 + (minor << 4) + bugifix. See AssembleVersion() below for major > 10.
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// Major version < 10 is not allowed.
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#define MAC_OS_X_VERSION_MASK 0x0000FFFF
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#define MAC_OS_X_VERSION_10_0_HEX 0x00001000
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#define MAC_OS_X_VERSION_10_7_HEX 0x00001070
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#define MAC_OS_X_VERSION_10_8_HEX 0x00001080
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#define MAC_OS_X_VERSION_10_9_HEX 0x00001090
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#define MAC_OS_X_VERSION_10_10_HEX 0x000010A0
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#define MAC_OS_X_VERSION_10_11_HEX 0x000010B0
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#define MAC_OS_X_VERSION_10_12_HEX 0x000010C0
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#define MAC_OS_X_VERSION_10_13_HEX 0x000010D0
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#define MAC_OS_X_VERSION_10_14_HEX 0x000010E0
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#define MAC_OS_X_VERSION_10_15_HEX 0x000010F0
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#define MAC_OS_X_VERSION_10_16_HEX 0x000A1000
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#define MAC_OS_X_VERSION_11_0_HEX 0x000B0000
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#include "nsCocoaFeatures.h"
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#include "nsCocoaUtils.h"
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#include "nsDebug.h"
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#include "nsObjCExceptions.h"
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#import <Cocoa/Cocoa.h>
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int32_t nsCocoaFeatures::mOSXVersion = 0;
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// This should not be called with unchecked aMajor, which should be >= 10.
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inline int32_t AssembleVersion(int32_t aMajor, int32_t aMinor, int32_t aBugFix)
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{
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MOZ_ASSERT(aMajor >= 10);
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return MAC_OS_X_VERSION_10_0_HEX + (aMajor-10) * 0x100 + (aMinor << 4) + aBugFix;
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}
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int32_t nsCocoaFeatures::ExtractMajorVersion(int32_t aVersion)
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{
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MOZ_ASSERT((aVersion & MAC_OS_X_VERSION_MASK) == aVersion);
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return ((aVersion & 0xFF00) - 0x1000) / 0x100 + 10;
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}
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int32_t nsCocoaFeatures::ExtractMinorVersion(int32_t aVersion)
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{
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MOZ_ASSERT((aVersion & MAC_OS_X_VERSION_MASK) == aVersion);
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return (aVersion & 0xF0) >> 4;
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}
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int32_t nsCocoaFeatures::ExtractBugFixVersion(int32_t aVersion)
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{
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MOZ_ASSERT((aVersion & MAC_OS_X_VERSION_MASK) == aVersion);
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return aVersion & 0x0F;
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}
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static int intAtStringIndex(NSArray *array, int index)
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{
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return [(NSString *)[array objectAtIndex:index] integerValue];
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}
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void nsCocoaFeatures::GetSystemVersion(int &major, int &minor, int &bugfix)
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{
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major = minor = bugfix = 0;
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NSString* versionString = [[NSDictionary dictionaryWithContentsOfFile:
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@"/System/Library/CoreServices/SystemVersion.plist"] objectForKey:@"ProductVersion"];
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NSArray* versions = [versionString componentsSeparatedByString:@"."];
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NSUInteger count = [versions count];
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if (count > 0) {
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major = intAtStringIndex(versions, 0);
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if (count > 1) {
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minor = intAtStringIndex(versions, 1);
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if (count > 2) {
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bugfix = intAtStringIndex(versions, 2);
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}
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}
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}
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}
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int32_t nsCocoaFeatures::GetVersion(int32_t aMajor, int32_t aMinor, int32_t aBugFix)
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{
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int32_t osxVersion;
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if (aMajor < 10) {
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aMajor = 10;
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NS_ERROR("Couldn't determine OS X version, assuming 10.7");
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osxVersion = MAC_OS_X_VERSION_10_7_HEX;
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} else if (aMinor < 7) {
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aMinor = 7;
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NS_ERROR("OS X version too old, assuming 10.7");
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osxVersion = MAC_OS_X_VERSION_10_7_HEX;
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} else {
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MOZ_ASSERT(aMajor == 10); // For now, even though we're ready...
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MOZ_ASSERT(aMinor < 16);
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MOZ_ASSERT(aBugFix >= 0);
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MOZ_ASSERT(aBugFix < 16);
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osxVersion = AssembleVersion(aMajor, aMinor, aBugFix);
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}
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MOZ_ASSERT(aMajor == ExtractMajorVersion(osxVersion));
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MOZ_ASSERT(aMinor == ExtractMinorVersion(osxVersion));
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MOZ_ASSERT(aBugFix == ExtractBugFixVersion(osxVersion));
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return osxVersion;
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}
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/*static*/ void
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nsCocoaFeatures::InitializeVersionNumbers()
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{
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
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// Provide an autorelease pool to avoid leaking Cocoa objects,
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// as this gets called before the main autorelease pool is in place.
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nsAutoreleasePool localPool;
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int major, minor, bugfix;
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GetSystemVersion(major, minor, bugfix);
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mOSXVersion = GetVersion(major, minor, bugfix);
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NS_OBJC_END_TRY_ABORT_BLOCK;
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}
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/* static */ int32_t
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nsCocoaFeatures::OSXVersion()
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{
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// Don't let this be called while we're first setting the value...
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MOZ_ASSERT((mOSXVersion & MAC_OS_X_VERSION_MASK) >= 0);
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if (!mOSXVersion) {
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mOSXVersion = -1;
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InitializeVersionNumbers();
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}
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return mOSXVersion;
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}
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/* static */ int32_t
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nsCocoaFeatures::OSXVersionMajor()
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{
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MOZ_ASSERT((OSXVersion() & MAC_OS_X_VERSION_10_0_HEX) == MAC_OS_X_VERSION_10_0_HEX);
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return 10;
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}
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/* static */ int32_t
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nsCocoaFeatures::OSXVersionMinor()
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{
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return ExtractMinorVersion(OSXVersion());
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}
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/* static */ int32_t
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nsCocoaFeatures::OSXVersionBugFix()
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{
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return ExtractBugFixVersion(OSXVersion());
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}
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/* static */ bool
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nsCocoaFeatures::OnYosemiteOrLater()
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{
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return (OSXVersion() >= MAC_OS_X_VERSION_10_10_HEX);
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}
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/* static */ bool
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nsCocoaFeatures::OnElCapitanOrLater()
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{
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return (OSXVersion() >= MAC_OS_X_VERSION_10_11_HEX);
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}
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/* static */ bool
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nsCocoaFeatures::OnSierraOrLater()
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{
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return (OSXVersion() >= MAC_OS_X_VERSION_10_12_HEX);
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}
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/* static */ bool
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nsCocoaFeatures::OnHighSierraOrLater()
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{
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return (OSXVersion() >= MAC_OS_X_VERSION_10_13_HEX);
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}
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/* static */ bool
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nsCocoaFeatures::OnMojaveOrLater()
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{
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return (OSXVersion() >= MAC_OS_X_VERSION_10_14_HEX);
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}
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/* static */ bool
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nsCocoaFeatures::OnCatalinaOrLater()
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{
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return (OSXVersion() >= MAC_OS_X_VERSION_10_15_HEX);
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}
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/* static */ bool
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nsCocoaFeatures::OnBigSurOrLater() {
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// Account for the version being 10.16 (which occurs when the
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// application is linked with an older SDK) or 11.0 on Big Sur.
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return ((OSXVersion() >= MAC_OS_X_VERSION_10_16_HEX) ||
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(OSXVersion() >= MAC_OS_X_VERSION_11_0_HEX));
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}
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/* static */ bool
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nsCocoaFeatures::IsAtLeastVersion(int32_t aMajor, int32_t aMinor, int32_t aBugFix)
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{
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return OSXVersion() >= GetVersion(aMajor, aMinor, aBugFix);
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}
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