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widget/cocoa/nsCocoaFeatures.mm@ac0c01689b40 (annotated)

widget/cocoa/nsCocoaFeatures.mm

Thu, 15 Jan 2015 15:59:08 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 15 Jan 2015 15:59:08 +0100

branch

TOR_BUG_9701

changeset 10

ac0c01689b40

permissions

-rw-r--r--

Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0	1	/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0	2	* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	#define MAC_OS_X_VERSION_MASK 0x0000FFFF
michael@0	7	#define MAC_OS_X_VERSION_10_6_HEX 0x00001060
michael@0	8	#define MAC_OS_X_VERSION_10_7_HEX 0x00001070
michael@0	9	#define MAC_OS_X_VERSION_10_8_HEX 0x00001080
michael@0	10	#define MAC_OS_X_VERSION_10_9_HEX 0x00001090
michael@0	11	#define MAC_OS_X_VERSION_10_10_HEX 0x000010A0
michael@0	12
michael@0	13	// This API will not work for OS X 10.10, see Gestalt.h.
michael@0	14
michael@0	15	#include "nsCocoaFeatures.h"
michael@0	16	#include "nsCocoaUtils.h"
michael@0	17	#include "nsDebug.h"
michael@0	18	#include "nsObjCExceptions.h"
michael@0	19
michael@0	20	#import <Cocoa/Cocoa.h>
michael@0	21
michael@0	22	int32_t nsCocoaFeatures::mOSXVersion = 0;
michael@0	23	int32_t nsCocoaFeatures::mOSXVersionMajor = 0;
michael@0	24	int32_t nsCocoaFeatures::mOSXVersionMinor = 0;
michael@0	25	int32_t nsCocoaFeatures::mOSXVersionBugFix = 0;
michael@0	26
michael@0	27	static int intAtStringIndex(NSArray *array, int index)
michael@0	28	{
michael@0	29	return [(NSString *)[array objectAtIndex:index] integerValue];
michael@0	30	}
michael@0	31
michael@0	32	static void GetSystemVersion(int &major, int &minor, int &bugfix)
michael@0	33	{
michael@0	34	major = minor = bugfix = 0;
michael@0	35
michael@0	36	NSString* versionString = [[NSDictionary dictionaryWithContentsOfFile:
michael@0	37	@"/System/Library/CoreServices/SystemVersion.plist"] objectForKey:@"ProductVersion"];
michael@0	38	NSArray* versions = [versionString componentsSeparatedByString:@"."];
michael@0	39	NSUInteger count = [versions count];
michael@0	40	if (count > 0) {
michael@0	41	major = intAtStringIndex(versions, 0);
michael@0	42	if (count > 1) {
michael@0	43	minor = intAtStringIndex(versions, 1);
michael@0	44	if (count > 2) {
michael@0	45	bugfix = intAtStringIndex(versions, 2);
michael@0	46	}
michael@0	47	}
michael@0	48	}
michael@0	49	}
michael@0	50
michael@0	51	/*static*/ void
michael@0	52	nsCocoaFeatures::InitializeVersionNumbers()
michael@0	53	{
michael@0	54	NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
michael@0	55
michael@0	56	// Provide an autorelease pool to avoid leaking Cocoa objects,
michael@0	57	// as this gets called before the main autorelease pool is in place.
michael@0	58	nsAutoreleasePool localPool;
michael@0	59
michael@0	60	int major, minor, bugfix;
michael@0	61	GetSystemVersion(major, minor, bugfix);
michael@0	62
michael@0	63	mOSXVersionMajor = major;
michael@0	64	mOSXVersionMinor = minor;
michael@0	65	mOSXVersionBugFix = bugfix;
michael@0	66
michael@0	67	if (major < 10) {
michael@0	68	NS_ERROR("Couldn't determine OS X version, assuming 10.6");
michael@0	69	mOSXVersion = MAC_OS_X_VERSION_10_6_HEX;
michael@0	70	mOSXVersionMajor = 10;
michael@0	71	mOSXVersionMinor = 6;
michael@0	72	mOSXVersionBugFix = 0;
michael@0	73	} else if (minor < 6) {
michael@0	74	NS_ERROR("OS X version too old, assuming 10.6");
michael@0	75	mOSXVersion = MAC_OS_X_VERSION_10_6_HEX;
michael@0	76	mOSXVersionMinor = 6;
michael@0	77	mOSXVersionBugFix = 0;
michael@0	78	} else {
michael@0	79	mOSXVersion = 0x1000 + (minor << 4);
michael@0	80	}
michael@0	81
michael@0	82	NS_OBJC_END_TRY_ABORT_BLOCK;
michael@0	83	}
michael@0	84
michael@0	85	/* static */ int32_t
michael@0	86	nsCocoaFeatures::OSXVersion()
michael@0	87	{
michael@0	88	if (!mOSXVersion) {
michael@0	89	InitializeVersionNumbers();
michael@0	90	}
michael@0	91	return mOSXVersion;
michael@0	92	}
michael@0	93
michael@0	94	/* static */ int32_t
michael@0	95	nsCocoaFeatures::OSXVersionMajor()
michael@0	96	{
michael@0	97	if (!mOSXVersion) {
michael@0	98	InitializeVersionNumbers();
michael@0	99	}
michael@0	100	return mOSXVersionMajor;
michael@0	101	}
michael@0	102
michael@0	103	/* static */ int32_t
michael@0	104	nsCocoaFeatures::OSXVersionMinor()
michael@0	105	{
michael@0	106	if (!mOSXVersion) {
michael@0	107	InitializeVersionNumbers();
michael@0	108	}
michael@0	109	return mOSXVersionMinor;
michael@0	110	}
michael@0	111
michael@0	112	/* static */ int32_t
michael@0	113	nsCocoaFeatures::OSXVersionBugFix()
michael@0	114	{
michael@0	115	if (!mOSXVersion) {
michael@0	116	InitializeVersionNumbers();
michael@0	117	}
michael@0	118	return mOSXVersionBugFix;
michael@0	119	}
michael@0	120
michael@0	121	/* static */ bool
michael@0	122	nsCocoaFeatures::SupportCoreAnimationPlugins()
michael@0	123	{
michael@0	124	// Disallow Core Animation on 10.5 because of crashes.
michael@0	125	// See Bug 711564.
michael@0	126	return (OSXVersion() >= MAC_OS_X_VERSION_10_6_HEX);
michael@0	127	}
michael@0	128
michael@0	129	/* static */ bool
michael@0	130	nsCocoaFeatures::OnLionOrLater()
michael@0	131	{
michael@0	132	return (OSXVersion() >= MAC_OS_X_VERSION_10_7_HEX);
michael@0	133	}
michael@0	134
michael@0	135	/* static */ bool
michael@0	136	nsCocoaFeatures::OnMountainLionOrLater()
michael@0	137	{
michael@0	138	return (OSXVersion() >= MAC_OS_X_VERSION_10_8_HEX);
michael@0	139	}
michael@0	140
michael@0	141	/* static */ bool
michael@0	142	nsCocoaFeatures::OnMavericksOrLater()
michael@0	143	{
michael@0	144	return (OSXVersion() >= MAC_OS_X_VERSION_10_9_HEX);
michael@0	145	}
michael@0	146
michael@0	147	/* static */ bool
michael@0	148	nsCocoaFeatures::OnYosemiteOrLater()
michael@0	149	{
michael@0	150	return (OSXVersion() >= MAC_OS_X_VERSION_10_10_HEX);
michael@0	151	}