LineCommenter.proto.toggleLineCommentsInRange comments / uncomments lines in a selection

src/app/ace-line-comment-adaptor.coffee

@@ -0,0 +1,16 @@
+Range = require 'range'
+
+module.exports =
+class AceLineCommentAdaptor
+  constructor: (@buffer) ->
+
+  getLine: (row) ->
+    @buffer.lineForRow(row)
+
+  indentRows: (startRow, endRow, indentString) ->
+    for row in [startRow..endRow]
+      @buffer.insert([row, 0], indentString)
+
+  replace: (range, text) ->
+    range = Range.fromObject(range)
+    @buffer.change(range, text)

src/app/line-commenter.coffee

@@ -1,4 +1,5 @@
 Range = require 'range'
+AceLineCommentAdaptor = require 'ace-line-comment-adaptor'
 
 module.exports =
 class LineCommenter
@@ -9,9 +10,8 @@ class LineCommenter
   constructor: (@highlighter) ->
     @buffer = @highlighter.buffer
     @aceMode = @buffer.getMode()
+    @adaptor = new AceLineCommentAdaptor(@buffer)
 
   toggleLineCommentsInRange: (range) ->
     range = Range.fromObject(range)
-
-    @aceMode.tog
-
+    @aceMode.toggleCommentLines(@highlighter.stateForRow(range.start.row), @adaptor, range.start.row, range.end.row)

src/app/range.coffee

@@ -6,9 +6,10 @@ class Range
   @fromObject: (object) ->
     if _.isArray(object)
       new Range(object...)
-    else
+    else if object instanceof Range
       object
-
+    else
+      new Range(object.start, object.end)
 
   constructor: (pointA = new Point(0, 0), pointB = new Point(0, 0)) ->
     pointA = Point.fromObject(pointA)