Move Source/WTF/wtf to Source/wtf

Source/WTF/wtf/unicode/icu/CollatorICU.cpp

-/*
- * Copyright (C) 2008 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.
- * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- *     its contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 <wtf/unicode/Collator.h>
-
-#if USE(ICU_UNICODE) && !UCONFIG_NO_COLLATION
-
-#include <wtf/Assertions.h>
-#include <wtf/StringExtras.h>
-#include <wtf/Threading.h>
-#include <unicode/ucol.h>
-#include <string.h>
-
-#if OS(DARWIN)
-#include <wtf/RetainPtr.h>
-#include <CoreFoundation/CoreFoundation.h>
-#endif
-
-namespace WTF {
-
-static UCollator* cachedCollator;
-static Mutex& cachedCollatorMutex()
-{
-    AtomicallyInitializedStatic(Mutex&, mutex = *new Mutex);
-    return mutex;
-}
-
-Collator::Collator(const char* locale)
-    : m_collator(0)
-    , m_locale(locale ? strdup(locale) : 0)
-    , m_lowerFirst(false)
-{
-}
-
-PassOwnPtr<Collator> Collator::userDefault()
-{
-#if OS(DARWIN) && USE(CF)
-    // Mac OS X doesn't set UNIX locale to match user-selected one, so ICU default doesn't work.
-#if !OS(IOS) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
-    RetainPtr<CFLocaleRef> currentLocale(AdoptCF, CFLocaleCopyCurrent());
-    CFStringRef collationOrder = (CFStringRef)CFLocaleGetValue(currentLocale.get(), kCFLocaleCollatorIdentifier);
-#else
-    RetainPtr<CFStringRef> collationOrderRetainer(AdoptCF, (CFStringRef)CFPreferencesCopyValue(CFSTR("AppleCollationOrder"), kCFPreferencesAnyApplication, kCFPreferencesCurrentUser, kCFPreferencesAnyHost));
-    CFStringRef collationOrder = collationOrderRetainer.get();
-#endif
-    char buf[256];
-    if (!collationOrder)
-        return adoptPtr(new Collator(""));
-    CFStringGetCString(collationOrder, buf, sizeof(buf), kCFStringEncodingASCII);
-    return adoptPtr(new Collator(buf));
-#else
-    return adoptPtr(new Collator(0));
-#endif
-}
-
-Collator::~Collator()
-{
-    releaseCollator();
-    free(m_locale);
-}
-
-void Collator::setOrderLowerFirst(bool lowerFirst)
-{
-    m_lowerFirst = lowerFirst;
-}
-
-Collator::Result Collator::collate(const UChar* lhs, size_t lhsLength, const UChar* rhs, size_t rhsLength) const
-{
-    if (!m_collator)
-        createCollator();
-
-    return static_cast<Result>(ucol_strcoll(m_collator, lhs, lhsLength, rhs, rhsLength));
-}
-
-void Collator::createCollator() const
-{
-    ASSERT(!m_collator);
-    UErrorCode status = U_ZERO_ERROR;
-
-    {
-        Locker<Mutex> lock(cachedCollatorMutex());
-        if (cachedCollator) {
-            const char* cachedCollatorLocale = ucol_getLocaleByType(cachedCollator, ULOC_REQUESTED_LOCALE, &status);
-            ASSERT(U_SUCCESS(status));
-            ASSERT(cachedCollatorLocale);
-
-            UColAttributeValue cachedCollatorLowerFirst = ucol_getAttribute(cachedCollator, UCOL_CASE_FIRST, &status);
-            ASSERT(U_SUCCESS(status));
-
-            // FIXME: default locale is never matched, because ucol_getLocaleByType returns the actual one used, not 0.
-            if (m_locale && 0 == strcmp(cachedCollatorLocale, m_locale)
-                && ((UCOL_LOWER_FIRST == cachedCollatorLowerFirst && m_lowerFirst) || (UCOL_UPPER_FIRST == cachedCollatorLowerFirst && !m_lowerFirst))) {
-                m_collator = cachedCollator;
-                cachedCollator = 0;
-                return;
-            }
-        }
-    }
-
-    m_collator = ucol_open(m_locale, &status);
-    if (U_FAILURE(status)) {
-        status = U_ZERO_ERROR;
-        m_collator = ucol_open("", &status); // Fallback to Unicode Collation Algorithm.
-    }
-    ASSERT(U_SUCCESS(status));
-
-    ucol_setAttribute(m_collator, UCOL_CASE_FIRST, m_lowerFirst ? UCOL_LOWER_FIRST : UCOL_UPPER_FIRST, &status);
-    ASSERT(U_SUCCESS(status));
-
-    ucol_setAttribute(m_collator, UCOL_NORMALIZATION_MODE, UCOL_ON, &status);
-    ASSERT(U_SUCCESS(status));
-}
-
-void Collator::releaseCollator()
-{
-    {
-        Locker<Mutex> lock(cachedCollatorMutex());
-        if (cachedCollator)
-            ucol_close(cachedCollator);
-        cachedCollator = m_collator;
-        m_collator  = 0;
-    }
-}
-
-} // namespace WTF
-
-#endif // USE(ICU_UNICODE) && !UCONFIG_NO_COLLATION