From 4beecc086a16dd7bb64bd718257d527fa464f2f6 Mon Sep 17 00:00:00 2001
From: Julian Viereck <julian.viereck@gmail.com>
Date: Mon, 25 Apr 2011 01:06:42 +0200
Subject: [PATCH] Fix bug in TextLayer.updateLines

---
 lib/ace/edit_session.js | 4 ++++
 lib/ace/layer/text.js   | 9 ++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/lib/ace/edit_session.js b/lib/ace/edit_session.js
index c1005e7b..17f95525 100644
--- a/lib/ace/edit_session.js
+++ b/lib/ace/edit_session.js
@@ -1498,6 +1498,10 @@ var EditSession = function(text, mode) {
             return [];
         }
 
+        this.containsRow = function(row) {
+            return row >= this.start.row && row <= this.end.row;
+        }
+
         this.walk = function(callback, endRow, endColumn) {
             var lastEnd = 0,
                 folds = this.folds,
diff --git a/lib/ace/layer/text.js b/lib/ace/layer/text.js
index 548ef4bd..60bc771a 100644
--- a/lib/ace/layer/text.js
+++ b/lib/ace/layer/text.js
@@ -190,8 +190,15 @@ var Text = function(parentEl) {
             lineElementsIdx = 0;
 
         for (var row = config.firstRow; row < first; row++) {
+            var foldLine = this.session.getFoldLine(row);
+            if (foldLine) {
+                if (foldLine.containsRow(first)) {
+                    break;
+                } else {
+                    row = foldLine.end.row;
+                }
+            }
             lineElementsIdx ++;
-            row = this.session.getRowFoldEnd(row);
         }
 
         for (var i=first; i<=last; i++) {