From 03463da72928cdb3dbe6aa77be1c09bdcabe3d1b Mon Sep 17 00:00:00 2001
From: Nathan Sobo <nathan@github.com>
Date: Mon, 2 Jun 2014 17:48:40 +0900
Subject: [PATCH] Allow Editor::batchUpdates calls to be nested

---
 src/editor.coffee | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/editor.coffee b/src/editor.coffee
index acf03251d..b676130e4 100644
--- a/src/editor.coffee
+++ b/src/editor.coffee
@@ -144,6 +144,7 @@ class Editor extends Model
   cursors: null
   selections: null
   suppressSelectionMerging: false
+  updateBatchDepth: 0
 
   @delegatesMethods 'suggestedIndentForBufferRow', 'autoIndentBufferRow', 'autoIndentBufferRows',
     'autoDecreaseIndentForBufferRow', 'toggleLineCommentForBufferRow', 'toggleLineCommentsForBufferRows',
@@ -1842,9 +1843,11 @@ class Editor extends Model
   abortTransaction: -> @buffer.abortTransaction()
 
   batchUpdates: (fn) ->
-    @emit 'batched-updates-started'
+    @emit 'batched-updates-started' if @updateBatchDepth is 0
+    @updateBatchDepth++
     result = fn()
-    @emit 'batched-updates-ended'
+    @updateBatchDepth--
+    @emit 'batched-updates-ended' if @updateBatchDepth is 0
     result
 
   inspect: ->