Scope editor.showIndentGuide

src/text-editor-component.coffee

@@ -5,6 +5,7 @@ React = require 'react-atom-fork'
 scrollbarStyle = require 'scrollbar-style'
 {Range, Point} = require 'text-buffer'
 grim = require 'grim'
+{CompositeDisposable} = require 'event-kit'
 
 GutterComponent = require './gutter-component'
 InputComponent = require './input-component'
@@ -352,6 +353,7 @@ TextEditorComponent = React.createClass
   observeEditor: ->
     {editor} = @props
     @subscribe editor.onDidChange(@onScreenLinesChanged)
+    @subscribe editor.observeGrammar(@onGrammarChanged)
     @subscribe editor.observeCursors(@onCursorAdded)
     @subscribe editor.observeSelections(@onSelectionAdded)
     @subscribe editor.observeDecorations(@onDecorationAdded)
@@ -406,11 +408,20 @@ TextEditorComponent = React.createClass
       event.target.value = ''
 
   observeConfig: ->
-    @subscribe atom.config.observe 'editor.showIndentGuide', @setShowIndentGuide
-    @subscribe atom.config.observe 'editor.showLineNumbers', @setShowLineNumbers
-    @subscribe atom.config.observe 'editor.scrollSensitivity', @setScrollSensitivity
     @subscribe atom.config.observe 'editor.useHardwareAcceleration', @setUseHardwareAcceleration
 
+  onGrammarChanged: ->
+    {editor} = @props
+
+    @scopedPropertySubscriptions?.dispose()
+    @scopedPropertySubscriptions = subscriptions = new CompositeDisposable
+
+    scopeDescriptor = editor.getGrammarScopeDescriptor()
+
+    subscriptions.add atom.config.observe scopeDescriptor, 'editor.showIndentGuide', @setShowIndentGuide
+    subscriptions.add atom.config.observe scopeDescriptor, 'editor.showLineNumbers', @setShowLineNumbers
+    subscriptions.add atom.config.observe scopeDescriptor, 'editor.scrollSensitivity', @setScrollSensitivity
+
   onFocus: ->
     @refs.input.focus() if @isMounted()
 
@@ -435,7 +446,6 @@ TextEditorComponent = React.createClass
 
     inputNode.value = event.data if editor.insertText(event.data)
 
-
   onInputFocused: ->
     @setState(focused: true)