Bug 1225696 - Part 1. Add kDateFormatMonthLong and kDateFormatYearMonthLong to DateTimeFormat. r=emk

MozReview-Commit-ID: CT2Gzd0AEXb

--HG--
extra : rebase_source : 6b98c53f5a88e38cd19081b8a2559685a69ecc36

intl/locale/DateTimeFormat.cpp

@@ -107,6 +107,8 @@ DateTimeFormat::FormatUDateTime(const nsDateFormatSelector aDateFormatSelector,
       dateStyle = UDAT_SHORT;
       break;
     case kDateFormatYearMonth:
+    case kDateFormatYearMonthLong:
+    case kDateFormatMonthLong:
     case kDateFormatWeekday:
       dateStyle = UDAT_PATTERN;
       break;
@@ -169,7 +171,23 @@ DateTimeFormat::FormatUDateTime(const nsDateFormatSelector aDateFormatSelector,
         }
       }
 
-      nsAutoString skeleton(aDateFormatSelector == kDateFormatYearMonth ? u"yyyyMM " : u"EEE ");
+      nsAutoString skeleton;
+      switch (aDateFormatSelector) {
+      case kDateFormatYearMonth:
+        skeleton.AssignLiteral("yyyyMM ");
+        break;
+      case kDateFormatYearMonthLong:
+        skeleton.AssignLiteral("yyyyMMMM ");
+        break;
+      case kDateFormatMonthLong:
+        skeleton.AssignLiteral("MMMM ");
+        break;
+      case kDateFormatWeekday:
+        skeleton.AssignLiteral("EEE ");
+        break;
+      default:
+        break;
+      }
       int32_t dateSkeletonLen = skeleton.Length();
 
       if (timeStyle != UDAT_NONE) {

intl/locale/nsIScriptableDateFormat.idl

@@ -13,6 +13,8 @@ enum
     kDateFormatLong,                // provides the long date format for the given locale
     kDateFormatShort,               // provides the short date format for the given locale
     kDateFormatYearMonth,           // formats using only the year and month 
+    kDateFormatYearMonthLong,       // long version of kDateFormatYearMonth
+    kDateFormatMonthLong,           // long format of month name only
     kDateFormatWeekday              // week day (e.g. Mon, Tue)
 };
 %}

intl/locale/tests/gtest/TestDateTimeFormat.cpp

@@ -58,6 +58,14 @@ TEST(DateTimeFormat, DateFormatSelectors) {
   ASSERT_TRUE(NS_SUCCEEDED(rv));
   ASSERT_STREQ("01/1970", NS_ConvertUTF16toUTF8(formattedTime).get());
 
+  rv = mozilla::DateTimeFormat::FormatPRExplodedTime(kDateFormatYearMonthLong, kTimeFormatNone, &prExplodedTime, formattedTime);
+  ASSERT_TRUE(NS_SUCCEEDED(rv));
+  ASSERT_STREQ("January 1970", NS_ConvertUTF16toUTF8(formattedTime).get());
+
+  rv = mozilla::DateTimeFormat::FormatPRExplodedTime(kDateFormatMonthLong, kTimeFormatNone, &prExplodedTime, formattedTime);
+  ASSERT_TRUE(NS_SUCCEEDED(rv));
+  ASSERT_STREQ("January", NS_ConvertUTF16toUTF8(formattedTime).get());
+
   rv = mozilla::DateTimeFormat::FormatPRExplodedTime(kDateFormatYearMonth, kTimeFormatNoSeconds, &prExplodedTime, formattedTime);
   ASSERT_TRUE(NS_SUCCEEDED(rv));
   ASSERT_STREQ("01/1970, 12:00 AM", NS_ConvertUTF16toUTF8(formattedTime).get());