Let editor decide if it wants to open a file.

src/editor.coffee

@@ -34,7 +34,10 @@ class Editor
     @ace.setShowInvisibles(true)
     @ace.setPrintMarginColumn 78
 
-    Event.on 'window:open', (e) => @addBuffer e.details
+    Event.on 'window:open', (e) =>
+      path = e.details
+      @addBuffer e.details if fs.isFile path
+
     Event.on 'window:close', (e) => @removeBuffer e.details
     Event.on 'editor:bufferFocus', (e) => @resize()
 

src/window.coffee

@@ -82,9 +82,7 @@ windowAdditions =
   # Do open and close even belong here?
   open: (path) ->
     atomController.window.makeKeyAndOrderFront atomController
-
-    if not fs.isDirectory path
-      Event.trigger 'window:open', path
+    Event.trigger 'window:open', path
 
   close: (path) ->
     extension.shutdown() for name, extension of @extensions