1 files changed, 22 insertions, 0 deletions
diff --git a/intl/unicharutil/util/nsUnicodeProperties.h b/intl/unicharutil/util/nsUnicodeProperties.h
index 303582f99..ee1d77252 100644
--- a/intl/unicharutil/util/nsUnicodeProperties.h
+++ b/intl/unicharutil/util/nsUnicodeProperties.h
@@ -54,6 +54,15 @@ enum XidmodType {
   XIDMOD_NOT_CHARS
 };
 
+enum EmojiPresentation {
+  TextOnly = 0,
+  TextDefault = 1,
+  EmojiDefault = 2
+};
+
+const uint32_t kVariationSelector15 = 0xFE0E; // text presentation
+const uint32_t kVariationSelector16 = 0xFE0F; // emoji presentation
+
 // ICU is available, so simply forward to its API
 
 extern const hb_unicode_general_category_t sICUtoHBcategory[];
@@ -170,6 +179,19 @@ IsEastAsianWidthFWH(uint32_t aCh)
   return false;
 }
 
+inline EmojiPresentation
+GetEmojiPresentation(uint32_t aCh)
+{
+  if (!u_hasBinaryProperty(aCh, UCHAR_EMOJI)) {
+    return TextOnly;
+  }
+
+  if (u_hasBinaryProperty(aCh, UCHAR_EMOJI_PRESENTATION)) {
+    return EmojiDefault;
+  }
+  return TextDefault;
+}
+
 // returns the simplified Gen Category as defined in nsIUGenCategory
 inline nsIUGenCategory::nsUGenCategory GetGenCategory(uint32_t aCh) {
   return sDetailedToGeneralCategory[GetGeneralCategory(aCh)];