fix minor ui issue in the theme assets section

Gemfile.lock

@@ -76,7 +76,7 @@ GEM
       locomotive_carrierwave
       mongoid (~> 2.0.0.rc.6)
     daemons (1.1.0)
-    database_cleaner (0.6.0)
+    database_cleaner (0.6.1)
     delayed_job (2.1.2)
       activesupport (~> 3.0)
       daemons

app/helpers/admin/assets_helper.rb

@@ -9,7 +9,15 @@ module Admin::AssetsHelper
   end
 
   def allow_plain_text_editing?(asset)
-    asset.new_record? || asset.stylesheet? || asset.javascript?
+    asset.new_record? || asset.stylesheet_or_javascript?
+  end
+
+  def display_plain_text?(asset)
+    if asset.new_record?
+      asset.performing_plain_text?
+    else
+      asset.stylesheet_or_javascript?
+    end
   end
 
 end

app/views/admin/theme_assets/_form.html.haml

@@ -4,16 +4,16 @@
 
 = f.hidden_field :performing_plain_text
 
-#file-selector{ :class => "selector #{'hidden' if @theme_asset.stylesheet_or_javascript?}" }
+#file-selector{ :class => "selector #{'hidden' if display_plain_text?(@theme_asset)}" }
   = f.inputs :name => :information do
     = f.input :source
 
-  - if @theme_asset.new_record? || @theme_asset.stylesheet_or_javascript?
+  - if allow_plain_text_editing?(@theme_asset)
     %span.alt
       != t('admin.theme_assets.form.choose_plain_text')
 
 - if allow_plain_text_editing?(@theme_asset)
-  #text-selector{ :class => "selector #{'hidden' if !@theme_asset.stylesheet_or_javascript?}", :style => "#{'display: none' if !@theme_asset.stylesheet_or_javascript?}" }
+  #text-selector{ :class => "selector #{'hidden' unless display_plain_text?(@theme_asset)}", :style => "#{'display: none' unless display_plain_text?(@theme_asset)}" }
     = f.inputs :name => :code, :class => 'inputs code' do
 
       - if @theme_asset.new_record?