From fd7772a653828c7367db636e84564d8ded63f10a Mon Sep 17 00:00:00 2001
From: probablycorey <cj@github.com>
Date: Wed, 27 Mar 2013 15:07:30 -0700
Subject: [PATCH] Reset scrollLeft when setSoftWrapColumn is called

When the scroll view is scrolled and overflow-x is set to
'hidden' the scroll view renders wrong. Setting scrollLeft to 0 fixes
this problem. I'm unhappy with this solution, but it was a
simple way to get the scroll view to update its layout.

Closes #137
---
 spec/app/editor-spec.coffee | 9 +++++++++
 src/app/editor.coffee       | 1 +
 2 files changed, 10 insertions(+)

diff --git a/spec/app/editor-spec.coffee b/spec/app/editor-spec.coffee
index 160affc98..92d8b662b 100644
--- a/spec/app/editor-spec.coffee
+++ b/spec/app/editor-spec.coffee
@@ -977,6 +977,15 @@ describe "Editor", ->
               editor.setCursorScreenPosition([2, 5])
               expect(editor.scrollView.scrollLeft()).toBe 0
 
+  describe "when editor:toggle-soft-wrap is toggled", ->
+    describe "when the text exceeds the editor width and the scroll-view is horizontally scrolled", ->
+      it "wraps the text and renders properly", ->
+        editor.attachToDom(heightInLines: 30, widthInChars: 30)
+        editor.setText("Fashion axe umami jean shorts retro hashtag carles mumblecore. Photo booth skateboard Austin gentrify occupy ethical. Food truck gastropub keffiyeh, squid deep v pinterest literally sustainable salvia scenester messenger bag. Neutra messenger bag flexitarian four loko, shoreditch VHS pop-up tumblr seitan synth master cleanse. Marfa selvage ugh, raw denim authentic try-hard mcsweeney's trust fund fashion axe actually polaroid viral sriracha. Banh mi marfa plaid single-origin coffee. Pickled mumblecore lomo ugh bespoke.")
+        editor.scrollView.scrollLeft(editor.charWidth * 30)
+        editor.trigger "editor:toggle-soft-wrap"
+        expect(editor.scrollView.scrollLeft()).toBe 0
+
   describe "text rendering", ->
     describe "when all lines in the buffer are visible on screen", ->
       beforeEach ->
diff --git a/src/app/editor.coffee b/src/app/editor.coffee
index 906b5fbd4..4ae1a6bd5 100644
--- a/src/app/editor.coffee
+++ b/src/app/editor.coffee
@@ -590,6 +590,7 @@ class Editor extends View
     @setSoftWrapColumn(softWrapColumn) if @attached
     if @activeEditSession.getSoftWrap()
       @addClass 'soft-wrap'
+      @scrollView.scrollLeft(0)
       @_setSoftWrapColumn = => @setSoftWrapColumn()
       $(window).on "resize.editor-#{@id}", @_setSoftWrapColumn
     else