third_party/WebKit/Source/wtf/text/AtomicStringCF.cpp

   1 /*
   2  * Copyright (C) 2012 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
  17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  23  * THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "wtf/text/AtomicString.h"
  28
  29 #if USE(CF)
  30
  31 #include "wtf/text/CString.h"
  32 #include <CoreFoundation/CoreFoundation.h>
  33
  34 namespace WTF {
  35
  36 PassRefPtr<StringImpl> AtomicString::add(CFStringRef string)
  37 {
  38     if (!string)
  39         return nullptr;
  40
  41     CFIndex length = CFStringGetLength(string);
  42
  43     if (const LChar* ptr = reinterpret_cast<const LChar*>(CFStringGetCStringPtr(string, kCFStringEncodingISOLatin1)))
  44         return add(ptr, length);
  45
  46     if (const UniChar* ptr = CFStringGetCharactersPtr(string))
  47         return add(reinterpret_cast<const UChar*>(ptr), length);
  48
  49     Vector<UniChar, 1024> ucharBuffer(length);
  50     CFStringGetCharacters(string, CFRangeMake(0, length), ucharBuffer.data());
  51     return add(reinterpret_cast<const UChar*>(ucharBuffer.data()), length);
  52 }
  53
  54 } // namespace WTF
  55
  56 #endif // USE(CF)