1 files changed, 83 insertions, 0 deletions
diff --git a/Source/WTF/wtf/PlatformUserPreferredLanguagesWin.cpp b/Source/WTF/wtf/PlatformUserPreferredLanguagesWin.cpp
new file mode 100644
index 000000000..79ad23c54
--- /dev/null
+++ b/Source/WTF/wtf/PlatformUserPreferredLanguagesWin.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2007, 2016 Apple Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "PlatformUserPreferredLanguages.h"
+
+#include <mutex>
+#include <windows.h>
+#include <wtf/Lock.h>
+#include <wtf/Vector.h>
+#include <wtf/text/WTFString.h>
+
+namespace WTF {
+
+static StaticLock platformLanguageMutex;
+
+void setPlatformUserPreferredLanguagesChangedCallback(void (*)()) { }
+
+static String localeInfo(LCTYPE localeType, const String& fallback)
+{
+    LANGID langID = GetUserDefaultUILanguage();
+    int localeChars = GetLocaleInfo(langID, localeType, 0, 0);
+    if (!localeChars)
+        return fallback;
+    UChar* localeNameBuf;
+    String localeName = String::createUninitialized(localeChars, localeNameBuf);
+    localeChars = GetLocaleInfo(langID, localeType, localeNameBuf, localeChars);
+    if (!localeChars)
+        return fallback;
+    if (localeName.isEmpty())
+        return fallback;
+
+    localeName.truncate(localeName.length() - 1);
+    return localeName;
+}
+
+static String platformLanguage()
+{
+    std::lock_guard<StaticLock> lock(platformLanguageMutex);
+
+    static String computedDefaultLanguage;
+    if (!computedDefaultLanguage.isEmpty())
+        return computedDefaultLanguage.isolatedCopy();
+
+    String languageName = localeInfo(LOCALE_SISO639LANGNAME, "en");
+    String countryName = localeInfo(LOCALE_SISO3166CTRYNAME, String());
+
+    if (countryName.isEmpty())
+        computedDefaultLanguage = languageName;
+    else
+        computedDefaultLanguage = languageName + '-' + countryName;
+
+    return computedDefaultLanguage;
+}
+
+Vector<String> platformUserPreferredLanguages()
+{
+    return { platformLanguage() };
+}
+
+} // namespace WTF