complete preview for both new and announcement

app/helpers/admin/web_component_helper.rb

@@ -0,0 +1,23 @@
+module Admin::WebComponentHelper
+  include ActionView::Helpers::TagHelper
+
+  def alert_block_tag(title="",context="",*args)
+    content_tag(:div,:class=>"alert alert-block alert-error fade in") do
+      a = ActiveSupport::SafeBuffer.new
+      a << button_tag( 'x',:class=>"close",:data=>{:dismiss=>"alert"}) if (args.first[:close] rescue false)
+      a << content_tag(:h4,:class=>"alert-heading") do
+        title
+      end
+      a << content_tag(:p) do
+        context
+      end
+      # TODO : 可以提供更多功能
+      # a << content_tag(:p) do
+      #   b = link_to("Take this action","",:class=>"btn btn-danger") 
+      #   b << link_to("Or do this","",:class=>"btn") 
+      #   b
+      # end
+    end
+
+  end
+  end