From f76c9d55977a2fd2ae082b4e3048380ea5d46e03 Mon Sep 17 00:00:00 2001
From: Nathan Sobo <nathan@github.com>
Date: Sat, 3 Nov 2012 14:12:02 -0600
Subject: [PATCH] Don't update the highlighted line number if it's already
 highlighted

---
 src/app/gutter.coffee | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/app/gutter.coffee b/src/app/gutter.coffee
index ce1eeb566..dbc3998c9 100644
--- a/src/app/gutter.coffee
+++ b/src/app/gutter.coffee
@@ -59,11 +59,16 @@ class Gutter extends View
       @widthChanged?(@outerWidth())
 
   highlightCursorLine: ->
-    screenRowIndex = @editor().getCursorScreenPosition().row - @firstScreenRow
+    currentRow = @editor().getCursorScreenPosition().row
+    return if @highlightedRow == currentRow
+
+    screenRowIndex = currentRow - @firstScreenRow
     @highlightedLineNumber?.classList.remove('cursor-line')
 
     if screenRowIndex >= 0 and @editor().getSelection().isSingleScreenLine()
       @highlightedLineNumber = @lineNumbers[0].children[screenRowIndex]
       @highlightedLineNumber?.classList.add('cursor-line')
+      @highlightedRow = currentRow
     else
       @highlightedLineNumber = null
+      @highlightedRow = null