include an iframe route, for posts, and a magic body padding removal for screens with small widths (for some reason, smaller than 770

app/assets/stylesheets/new_styles/_base.scss

@@ -5,6 +5,12 @@
 .icon-green { background-image: image_url("img/glyphicons-halflings-green.png"); }
 .icon-blue  { background-image: image_url("img/glyphicons-halflings-blue.png");  }
 
+ @media (max-width: 770px) { //why is 770 a magic number?
+    body {
+      padding: 0;
+    }
+  }
+
 .photoset {
   @include center(horizontal);
   width: 100%;

app/controllers/posts_controller.rb

@@ -5,7 +5,9 @@
 require Rails.root.join("app", "presenters", "post_presenter")
 
 class PostsController < ApplicationController
-  before_filter :authenticate_user!, :except => :show
+  include PostsHelper
+  
+  before_filter :authenticate_user!, :except => [:show, :iframe]
   before_filter :set_format_if_malformed_from_status_net, :only => :show
 
   layout 'post'
@@ -53,6 +55,10 @@ class PostsController < ApplicationController
     end
   end
 
+  def iframe
+    render :text => post_iframe_url(params[:id]), :layout => false
+  end
+
   def destroy
     @post = current_user.posts.where(:id => params[:id]).first
     if @post

app/helpers/posts_helper.rb

@@ -16,4 +16,10 @@ module PostsHelper
       end
     end
   end
+
+  def post_iframe_url(post_id, opts={})
+    opts[:width] ||= 516
+    opts[:height] ||= 315 
+   "<iframe src='#{post_url(post_id)}' width='#{opts[:width]}px' height='#{opts[:height]}px' frameBorder='0'></iframe>".html_safe
+  end
 end

config/routes.rb

@@ -19,6 +19,8 @@ Diaspora::Application.routes.draw do
   match "/framer" => redirect("/posts/new")
 
   get 'p/:id' => 'posts#show', :as => 'short_post'
+  get 'p/:id/iframe' => 'posts#iframe', :as => 'iframe'
+
   # roll up likes into a nested resource above
   resources :comments, :only => [:create, :destroy] do
     resources :likes, :only => [:create, :destroy, :index]

spec/controllers/posts_controller_spec.rb

@@ -112,6 +112,13 @@ describe PostsController do
       end
     end
   end
+  
+  describe 'iframe' do
+    it 'contains an iframe' do
+      get :iframe, :id => @message.id
+      response.body.should match /iframe/
+    end
+  end
 
   describe '#destroy' do
     before do