gecko-dev/widget/cocoa/nsCocoaFeatures.mm

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is thebes gfx code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Benoit Girard <bgirard@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#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"
#import <Cocoa/Cocoa.h>
PRInt32 nsCocoaFeatures::mOSXVersion = 0;
/* static */ PRInt32
nsCocoaFeatures::OSXVersion()
{
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;
}
/* 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);
}