WKStringCF.mm   [plain text]

/*
* Copyright (C) 2010 Apple Inc. All rights reserved.
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*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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#import "config.h"
#import "WKStringCF.h"

#import "WKAPICast.h"
#import "WKNSString.h"
#import <objc/runtime.h>
#import <wtf/text/WTFString.h>

using namespace WebCore;
using namespace WebKit;

#if WK_API_ENABLED
static inline Class wkNSStringClass()
{
static dispatch_once_t once;
static Class wkNSStringClass;
dispatch_once(&once, ^{
wkNSStringClass = [WKNSString class];
});
return wkNSStringClass;
}
#endif // WK_API_ENABLED

WKStringRef WKStringCreateWithCFString(CFStringRef cfString)
{
#if WK_API_ENABLED
// Since WKNSString is an internal class with no subclasses, we can do a simple equality check.
if (object_getClass((__bridge NSString *)cfString) == wkNSStringClass())
return toAPI(static_cast<API::String*>(&[(WKNSString *)[(NSString *)cfString retain] _apiObject]));
#endif
String string(cfString);
return toCopiedAPI(string);
}

CFStringRef WKStringCopyCFString(CFAllocatorRef allocatorRef, WKStringRef stringRef)
{
ASSERT(!toImpl(stringRef)->string().isNull());

// NOTE: This does not use StringImpl::createCFString() since that function
// expects to be called on the thread running WebCore.
if (toImpl(stringRef)->string().is8Bit())
return CFStringCreateWithBytes(allocatorRef, reinterpret_cast<const UInt8*>(toImpl(stringRef)->string().characters8()), toImpl(stringRef)->string().length(), kCFStringEncodingISOLatin1, true);
return CFStringCreateWithCharacters(allocatorRef, reinterpret_cast<const UniChar*>(toImpl(stringRef)->string().characters16()), toImpl(stringRef)->string().length());
}