Tree view deselects entry when active item has no path

src/packages/tree-view/lib/tree-view.coffee

@@ -127,8 +127,10 @@ class TreeView extends ScrollView
       @root = null
 
   selectActiveFile: ->
-    activeFilePath = rootView.getActiveView()?.getPath()
-    @selectEntryForPath(activeFilePath) if activeFilePath
+    if activeFilePath = rootView.getActiveView()?.getPath?()
+      @selectEntryForPath(activeFilePath)
+    else
+      @deselect()
 
   revealActiveFile: ->
     @attach()
@@ -290,9 +292,12 @@ class TreeView extends ScrollView
     return false unless entry.get(0)
     entry = entry.view() unless entry instanceof View
     @selectedPath = entry.getPath()
-    @treeViewList.find('.selected').removeClass('selected')
+    @deselect()
     entry.addClass('selected')
 
+  deselect: ->
+    @treeViewList.find('.selected').removeClass('selected')
+
   scrollTop: (top) ->
     if top
       @treeViewList.scrollTop(top)

src/packages/tree-view/spec/tree-view-spec.coffee

@@ -1,4 +1,5 @@
 $ = require 'jquery'
+{$$} = require 'space-pen'
 _ = require 'underscore'
 TreeView = require 'tree-view/lib/tree-view'
 RootView = require 'root-view'
@@ -301,18 +302,25 @@ describe "TreeView", ->
       expect(subdir).toHaveClass 'expanded'
       expect(rootView.getActiveView().isFocused).toBeFalsy()
 
-  describe "when a new file is opened in the active editor", ->
-    it "selects the file in the tree view if the file's entry visible", ->
-      sampleJs.click()
-      rootView.open(require.resolve('fixtures/tree-view/tree-view.txt'))
+  describe "when the active item changes on the active pane", ->
+    describe "when the item has a path", ->
+      it "selects the entry with that path in the tree view if it is visible", ->
+        sampleJs.click()
+        rootView.open(require.resolve('fixtures/tree-view/tree-view.txt'))
 
-      expect(sampleTxt).toHaveClass 'selected'
-      expect(treeView.find('.selected').length).toBe 1
+        expect(sampleTxt).toHaveClass 'selected'
+        expect(treeView.find('.selected').length).toBe 1
 
-    it "selects the file's parent dir if the file's entry is not visible", ->
-      rootView.open('dir1/sub-dir1/sub-file1')
-      dirView = treeView.root.find('.directory:contains(dir1)').view()
-      expect(dirView).toHaveClass 'selected'
+      it "selects the path's parent dir if its entry is not visible", ->
+        rootView.open('dir1/sub-dir1/sub-file1')
+        dirView = treeView.root.find('.directory:contains(dir1)').view()
+        expect(dirView).toHaveClass 'selected'
+
+    describe "when the item has no path", ->
+      it "deselects the previously selected entry", ->
+        sampleJs.click()
+        rootView.getActivePane().showItem($$ -> @div('hello'))
+        expect(rootView.find('.selected')).not.toExist()
 
   describe "when a different editor becomes active", ->
     it "selects the file in that is open in that editor", ->