widget/cocoa/nsCocoaFeatures.mm
author Ehsan Akhgari <ehsan@mozilla.com>
Wed, 22 Aug 2012 11:56:38 -0400
changeset 102997 a16372ce30b5f6b747246b01fcd215a4bf3b6342
parent 94475 f4157e8c410708d76703f19e4dfb61859bfe32d8
child 106706 c4f83d9d8243f3f853a5356188164a5fddee2b5a
permissions -rw-r--r--
Bug 579517 - Part 1: Automated conversion of NSPR numeric types to stdint types in Gecko; r=bsmedberg This patch was generated by a script. Here's the source of the script for future reference: function convert() { echo "Converting $1 to $2..." find . ! -wholename "*nsprpub*" \ ! -wholename "*security/nss*" \ ! -wholename "*/.hg*" \ ! -wholename "obj-ff-dbg*" \ ! -name nsXPCOMCID.h \ ! -name prtypes.h \ -type f \ \( -iname "*.cpp" \ -o -iname "*.h" \ -o -iname "*.c" \ -o -iname "*.cc" \ -o -iname "*.idl" \ -o -iname "*.ipdl" \ -o -iname "*.ipdlh" \ -o -iname "*.mm" \) | \ xargs -n 1 sed -i -e "s/\b$1\b/$2/g" } convert PRInt8 int8_t convert PRUint8 uint8_t convert PRInt16 int16_t convert PRUint16 uint16_t convert PRInt32 int32_t convert PRUint32 uint32_t convert PRInt64 int64_t convert PRUint64 uint64_t convert PRIntn int convert PRUintn unsigned convert PRSize size_t convert PROffset32 int32_t convert PROffset64 int64_t convert PRPtrdiff ptrdiff_t convert PRFloat64 double

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * 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/. */

#define MAC_OS_X_VERSION_MASK     0x0000FFFF // Not supported
#define MAC_OS_X_VERSION_10_4_HEX 0x00001040 // Not supported
#define MAC_OS_X_VERSION_10_5_HEX 0x00001050
#define MAC_OS_X_VERSION_10_6_HEX 0x00001060
#define MAC_OS_X_VERSION_10_7_HEX 0x00001070

// This API will not work for OS X 10.10, see Gestalt.h.

#include "nsCocoaFeatures.h"
#include "nsDebug.h"
#include "nsObjCExceptions.h"

#import <Cocoa/Cocoa.h>

int32_t nsCocoaFeatures::mOSXVersion = 0;

/* static */ int32_t
nsCocoaFeatures::OSXVersion()
{
    NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;

    if (!mOSXVersion) {
        // minor version is not accurate, use gestaltSystemVersionMajor, 
        // gestaltSystemVersionMinor, gestaltSystemVersionBugFix for these
        OSErr err = ::Gestalt(gestaltSystemVersion, reinterpret_cast<SInt32*>(&mOSXVersion));
        if (err != noErr) {
            // This should probably be changed when our minimum version changes
            NS_ERROR("Couldn't determine OS X version, assuming 10.5");
            mOSXVersion = MAC_OS_X_VERSION_10_5_HEX;
        }
        mOSXVersion &= MAC_OS_X_VERSION_MASK;
    }
    return mOSXVersion;

    NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(0);
}

/* static */ bool
nsCocoaFeatures::SupportCoreAnimationPlugins()
{
    // Disallow Core Animation on 10.5 because of crashes.
    // See Bug 711564.
    return (OSXVersion() >= MAC_OS_X_VERSION_10_6_HEX);
}

/* static */ bool
nsCocoaFeatures::OnSnowLeopardOrLater()
{
    return (OSXVersion() >= MAC_OS_X_VERSION_10_6_HEX);
}

/* static */ bool
nsCocoaFeatures::OnLionOrLater()
{
    return (OSXVersion() >= MAC_OS_X_VERSION_10_7_HEX);
}