2 files changed, 15 insertions, 0 deletions
diff --git a/layout/generic/Selection.h b/layout/generic/Selection.h
index 6f94303ca..3d5e334fc 100644
--- a/layout/generic/Selection.h
+++ b/layout/generic/Selection.h
@@ -179,6 +179,9 @@ public:
   {
     return mRanges.Length();
   }
+
+  void GetType(nsAString& aOutType) const;
+
   nsRange* GetRangeAt(uint32_t aIndex, mozilla::ErrorResult& aRv);
   void AddRange(nsRange& aRange, mozilla::ErrorResult& aRv);
   void RemoveRange(nsRange& aRange, mozilla::ErrorResult& aRv);
diff --git a/layout/generic/nsSelection.cpp b/layout/generic/nsSelection.cpp
index e0d65632e..a2227c39c 100644
--- a/layout/generic/nsSelection.cpp
+++ b/layout/generic/nsSelection.cpp
@@ -5349,6 +5349,18 @@ Selection::GetRangeCount(int32_t* aRangeCount)
   return NS_OK;
 }
 
+void
+Selection::GetType(nsAString& aOutType) const
+{
+  if (!RangeCount()) {
+    aOutType.AssignLiteral("None");
+  } else if (IsCollapsed()) {
+    aOutType.AssignLiteral("Caret");
+  } else {
+    aOutType.AssignLiteral("Range");
+  }
+}
+
 NS_IMETHODIMP
 Selection::GetRangeAt(int32_t aIndex, nsIDOMRange** aReturn)
 {