1 files changed, 61 insertions, 0 deletions
diff --git a/Source/WebCore/platform/text/LocaleICU.cpp b/Source/WebCore/platform/text/LocaleICU.cpp
index ce5f0afc4..e1a1eb17b 100644
--- a/Source/WebCore/platform/text/LocaleICU.cpp
+++ b/Source/WebCore/platform/text/LocaleICU.cpp
@@ -33,6 +33,7 @@
 
 #include "LocalizedStrings.h"
 #include <limits>
+#include <unicode/udatpg.h>
 #include <unicode/uloc.h>
 #include <wtf/DateMath.h>
 #include <wtf/PassOwnPtr.h>
@@ -398,6 +399,36 @@ String LocaleICU::dateFormat()
     return m_dateFormat;
 }
 
+static String getFormatForSkeleton(const char* locale, const String& skeleton)
+{
+    String format = ASCIILiteral("yyyy-MM");
+    UErrorCode status = U_ZERO_ERROR;
+    UDateTimePatternGenerator* patternGenerator = udatpg_open(locale, &status);
+    if (!patternGenerator)
+        return format;
+    status = U_ZERO_ERROR;
+    int32_t length = udatpg_getBestPattern(patternGenerator, skeleton.characters(), skeleton.length(), 0, 0, &status);
+    if (status == U_BUFFER_OVERFLOW_ERROR && length) {
+        Vector<UChar> buffer(length);
+        status = U_ZERO_ERROR;
+        udatpg_getBestPattern(patternGenerator, skeleton.characters(), skeleton.length(), buffer.data(), length, &status);
+        if (U_SUCCESS(status))
+            format = String::adopt(buffer);
+    }
+    udatpg_close(patternGenerator);
+    return format;
+}
+
+String LocaleICU::monthFormat()
+{
+    if (!m_monthFormat.isNull())
+        return m_monthFormat;
+    // Gets a format for "MMM", not "MM" because Windows API always provides
+    // formats for "MMM".
+    m_monthFormat = getFormatForSkeleton(m_locale.data(), ASCIILiteral("yyyyMMM"));
+    return m_monthFormat;
+}
+
 String LocaleICU::timeFormat()
 {
     initializeDateTimeFormat();
@@ -410,6 +441,36 @@ String LocaleICU::shortTimeFormat()
     return m_localizedShortTimeFormatText;
 }
 
+const Vector<String>& LocaleICU::shortMonthLabels()
+{
+    if (!m_shortMonthLabels.isEmpty())
+        return m_shortMonthLabels;
+    if (initializeShortDateFormat()) {
+        if (OwnPtr<Vector<String> > labels = createLabelVector(m_shortDateFormat, UDAT_SHORT_MONTHS, UCAL_JANUARY, 12)) {
+            m_shortMonthLabels = *labels;
+            return m_shortMonthLabels;
+        }
+    }
+    m_shortMonthLabels.reserveCapacity(WTF_ARRAY_LENGTH(WTF::monthName));
+    for (unsigned i = 0; i < WTF_ARRAY_LENGTH(WTF::monthName); ++i)
+        m_shortMonthLabels.append(WTF::monthName[i]);
+    return m_shortMonthLabels;
+}
+
+const Vector<String>& LocaleICU::shortStandAloneMonthLabels()
+{
+    if (!m_shortStandAloneMonthLabels.isEmpty())
+        return m_shortStandAloneMonthLabels;
+    if (initializeShortDateFormat()) {
+        if (OwnPtr<Vector<String> > labels = createLabelVector(m_shortDateFormat, UDAT_STANDALONE_SHORT_MONTHS, UCAL_JANUARY, 12)) {
+            m_shortStandAloneMonthLabels = *labels;
+            return m_shortStandAloneMonthLabels;
+        }
+    }
+    m_shortStandAloneMonthLabels = shortMonthLabels();
+    return m_shortStandAloneMonthLabels;
+}
+
 const Vector<String>& LocaleICU::timeAMPMLabels()
 {
     initializeDateTimeFormat();