gears/base/safari/cf_string_utils.cc

   1 // Copyright 2008, Google Inc.
   2 //
   3 // Redistribution and use in source and binary forms, with or without
   4 // modification, are permitted provided that the following conditions are met:
   5 //
   6 //  1. Redistributions of source code must retain the above copyright notice,
   7 //     this list of conditions and the following disclaimer.
   8 //  2. Redistributions in binary form must reproduce the above copyright notice,
   9 //     this list of conditions and the following disclaimer in the documentation
  10 //     and/or other materials provided with the distribution.
  11 //  3. Neither the name of Google Inc. nor the names of its contributors may be
  12 //     used to endorse or promote products derived from this software without
  13 //     specific prior written permission.
  14 //
  15 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  16 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  17 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
  18 // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  19 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  20 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  21 // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  22 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  23 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  24 // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25
  26 #include <CoreFoundation/CoreFoundation.h>
  27 #include "gears/base/common/string_utils.h"
  28 #include "gears/base/safari/cf_string_utils.h"
  29 #include "gears/third_party/scoped_ptr/scoped_ptr.h"
  30
  31 bool CFStringRefToString16(CFStringRef str, std::string16 *out16) {
  32   if (!str || !out16)
  33     return false;
  34
  35   unsigned long length = CFStringGetLength(str);
  36   const UniChar *outStr = CFStringGetCharactersPtr(str);
  37
  38   if (!outStr) {
  39     scoped_array<UniChar> buffer(new UniChar[length + 1]);
  40     CFStringGetCharacters(str, CFRangeMake(0, length), buffer.get());
  41     buffer[length] = 0;
  42     out16->assign(buffer.get());
  43   } else {
  44     out16->assign(outStr, length);
  45   }
  46
  47   return true;
  48 }
  49
  50 CFStringRef CFStringCreateWithString16(const char16 *str) {
  51   if (!str)
  52     return CFSTR("");
  53
  54   return CFStringCreateWithCharacters(NULL, str,
  55                                       std::char_traits<char16>::length(str));
  56 }