From 0ce3c496889a2aa9a4938671edd34a064ceb4897 Mon Sep 17 00:00:00 2001
From: Antonio Scandurra <me@as-cii.com>
Date: Thu, 26 Feb 2015 10:50:43 +0100
Subject: [PATCH] Batch returns the function value

* Emit only one event for nested batches
---
 src/text-editor.coffee | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/text-editor.coffee b/src/text-editor.coffee
index a25f98496..f828a6b06 100644
--- a/src/text-editor.coffee
+++ b/src/text-editor.coffee
@@ -1146,9 +1146,13 @@ class TextEditor extends Model
     @batch => @buffer.transact(groupingInterval, fn)
 
   batch: (fn) ->
-    @emitter.emit "will-start-batch-operation"
-    fn()
-    @emitter.emit "did-finish-batch-operation"
+    @batchCount++
+    @emitter.emit "will-start-batch-operation" if @batchCount == 1
+    value = fn()
+    @emitter.emit "did-finish-batch-operation" if @batchCount == 1
+    @batchCount--
+
+    value
 
   onWillStartBatchOperation: (callback) ->
     @emitter.on "will-start-batch-operation", callback