third_party/WebKit/Source/platform/Language.h

   1 /*
   2  * Copyright (C) 2003, 2006, 2010, 2013 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
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  18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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  20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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  22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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  24  */
  25
  26 #ifndef Language_h
  27 #define Language_h
  28
  29 #include "platform/PlatformExport.h"
  30 #include "wtf/Forward.h"
  31 #include "wtf/Vector.h"
  32
  33 namespace blink {
  34
  35 // Returns a BCP-47 language tag such as "en-US".  This is the UI locale of the
  36 // browser application.
  37 PLATFORM_EXPORT AtomicString defaultLanguage();
  38 // Returns a list of BCP-47 language tags.  This never returns multiple values
  39 // in production.  This is not a value of Accept-Languages header.  See
  40 // ChromeClient::acceptLanguages.
  41 PLATFORM_EXPORT Vector<AtomicString> userPreferredLanguages();
  42 PLATFORM_EXPORT void overrideUserPreferredLanguages(const Vector<AtomicString>&);
  43 PLATFORM_EXPORT size_t indexOfBestMatchingLanguageInList(const AtomicString& language, const Vector<AtomicString>& languageList);
  44
  45 }
  46
  47 #endif