show() the activeResource when it becomes active

src/atom/editor.coffee

@@ -52,6 +52,9 @@ class Editor extends Resource
   title: ->
     if @url then _.last @url.split '/' else 'untitled'
 
+  show: ->
+    @pane.show()
+
   open: (url) ->
     if url
       return false if not fs.isFile url

src/atom/project.coffee

@@ -51,6 +51,7 @@ class Project extends Resource
       if @resources[url]
         @activeResource = @resources[url]
         atom.trigger 'project:resource:active', this, @activeResource
+        @activeResource.show()
         true
       else
         # Try to open all others