Create FileView class. Instead of adding a path attar, FileView and DirectoryView have a getPath method

src/extensions/tree-view/directory-view.coffee

@@ -6,17 +6,21 @@ $ = require 'jquery'
 module.exports =
 class DirectoryView extends View
   @content: ({directory, isExpanded}) ->
-    @li class: 'directory entry', path: directory.path, =>
+    @li class: 'directory entry', =>
       @div class: 'header', =>
         @span '▸', class: 'disclosure-arrow', outlet: 'disclosureArrow'
         @span directory.getName(), class: 'name'
 
+  directory: null
   entries: null
 
   initialize: ({@directory, isExpanded}) ->
     @expand() if isExpanded
     @disclosureArrow.on 'click', => @toggleExpansion()
 
+  getPath: ->
+    @directory.path
+
   buildEntries: ->
     @unwatchDescendantEntries()
     @entries?.remove()

src/extensions/tree-view/file-view.coffee

@@ -4,6 +4,11 @@ $ = require 'jquery'
 module.exports =
 class FileView extends View
   @content: (file) ->
-    @li file.getName(), class: 'file entry', path: file.path
+    @li file.getName(), class: 'file entry'
+
+  file: null
 
   initialize: (@file) ->
+
+  getPath: ->
+    @file.path

src/extensions/tree-view/tree-view.coffee

@@ -1,6 +1,7 @@
 {View, $$} = require 'space-pen'
 Directory = require 'directory'
 DirectoryView = require 'tree-view/directory-view'
+FileView = require 'tree-view/file-view'
 MoveDialog = require 'tree-view/move-dialog'
 AddDialog = require 'tree-view/add-dialog'
 $ = require 'jquery'
@@ -18,9 +19,9 @@ class TreeView extends View
 
   initialize: (@rootView) ->
     @on 'click', '.entry', (e) =>
-      entry = $(e.currentTarget)
+      entry = $(e.currentTarget).view()
       @selectEntry(entry)
-      @openSelectedEntry() if entry.is('.file')
+      @openSelectedEntry() if (entry instanceof FileView)
       false
 
     @on 'move-up', => @moveUp()
@@ -37,11 +38,14 @@ class TreeView extends View
 
   selectActiveFile: ->
     activeFilePath = @rootView.activeEditor()?.buffer.path
-    @selectEntry(@find(".file[path='#{activeFilePath}']"))
+    for element in @find(".file")
+      fileView = $(element).view()
+      if fileView.getPath() == activeFilePath
+        @selectEntry(fileView)
 
   moveDown: ->
     selectedEntry = @selectedEntry()
-    if selectedEntry[0]
+    if selectedEntry
       if selectedEntry.is('.expanded.directory')
         return if @selectEntry(selectedEntry.find('.entry:first'))
       return if @selectEntry(selectedEntry.next())
@@ -51,7 +55,7 @@ class TreeView extends View
 
   moveUp: ->
     selectedEntry = @selectedEntry()
-    if selectedEntry[0]
+    if selectedEntry
       return if @selectEntry(selectedEntry.prev())
       return if @selectEntry(selectedEntry.parents('.directory').first())
     else
@@ -59,7 +63,7 @@ class TreeView extends View
 
   expandDirectory: ->
     selectedEntry = @selectedEntry()
-    selectedEntry.view().expand() if selectedEntry.is('.directory')
+    selectedEntry.view().expand() if (selectedEntry instanceof DirectoryView)
 
   collapseDirectory: ->
     selectedEntry = @selectedEntry()
@@ -69,22 +73,22 @@ class TreeView extends View
 
   openSelectedEntry: ->
     selectedEntry = @selectedEntry()
-    if selectedEntry.is('.directory')
+    if (selectedEntry instanceof DirectoryView)
       selectedEntry.view().toggleExpansion()
-    else if selectedEntry.is('.file')
-      @rootView.open(selectedEntry.attr('path'))
+    else if (selectedEntry instanceof FileView)
+      @rootView.open(selectedEntry.getPath())
 
   move: ->
-    @rootView.append(new MoveDialog(@rootView.project, @selectedEntry().attr('path')))
+    @rootView.append(new MoveDialog(@rootView.project, @selectedEntry().getPath()))
 
   add: ->
-    @rootView.append(new AddDialog(@rootView, @selectedEntry().attr('path')))
+    @rootView.append(new AddDialog(@rootView, @selectedEntry().getPath()))
 
   selectedEntry: ->
-    @find('.selected')
+    @find('.selected')?.view()
 
   selectEntry: (entry) ->
-    return false unless entry[0]
+    return false unless entry.get(0)
     @find('.selected').removeClass('selected')
     entry.addClass('selected')