1 files changed, 10 insertions, 2 deletions
diff --git a/WebCore/dom/Position.h b/WebCore/dom/Position.h
index c08872d..1e0304e 100644
--- a/WebCore/dom/Position.h
+++ b/WebCore/dom/Position.h
@@ -56,6 +56,11 @@ public:
         PositionIsBeforeAnchor
     };
 
+    enum EditingBoundaryCrossingRule {
+        CanCrossEditingBoundary,
+        CannotCrossEditingBoundary
+    };
+    
     Position()
         : m_offset(0)
         , m_anchorType(PositionIsOffsetInAnchor)
@@ -130,6 +135,9 @@ public:
     bool atFirstEditingPositionForNode() const;
     bool atLastEditingPositionForNode() const;
 
+    // Retuns true if the visually equivalent positions around have different editability
+    bool atEditingBoundary() const;
+    
     bool atStartOfTree() const;
     bool atEndOfTree() const;
 
@@ -139,8 +147,8 @@ public:
     Position trailingWhitespacePosition(EAffinity, bool considerNonCollapsibleWhitespace = false) const;
     
     // These return useful visually equivalent positions.
-    Position upstream() const;
-    Position downstream() const;
+    Position upstream(EditingBoundaryCrossingRule = CannotCrossEditingBoundary) const;
+    Position downstream(EditingBoundaryCrossingRule = CannotCrossEditingBoundary) const;
     
     bool isCandidate() const;
     bool inRenderedText() const;