Don't show a hide post button to non-logged in users

app/views/posts/show.mobile.haml

@@ -21,10 +21,11 @@
       = t('ago', :time => time_ago_in_words(@post.created_at))
 
       %br
-      - if current_user.owns? @post
-        = link_to t('delete'), post_path(@post), :confirm => t('are_you_sure'), :method => :delete
-      - else
-        = link_to t('hide'), post_visibility_path(:id => "42", :post_id => @post.id), :confirm => t('are_you_sure'), :method => :put, :remote => true
+      - if user_signed_in?
+        - if current_user.owns? @post
+          = link_to t('delete'), post_path(@post), :confirm => t('are_you_sure'), :method => :delete
+        - else
+          = link_to t('hide'), post_visibility_path(:id => "42", :post_id => @post.id), :confirm => t('are_you_sure'), :method => :put, :remote => true
 
 .stream.show{:data=>{:guid=>@post.id}}
   = render "comments/comments", :post => @post, :comments => @post.comments, :comments_expanded => true

app/views/shared/_stream_element.html.haml

@@ -7,7 +7,6 @@
     - if  post.author.owner_id == current_user.id
       .right.controls
         = link_to image_tag('deletelabel.png'), post_path(post), :confirm => t('are_you_sure'), :method => :delete, :remote => true, :class => "delete stream_element_delete", :title => t('delete')
-
     - else
       .right.controls
         = link_to image_tag('deletelabel.png'), post_visibility_path(:id => "42", :post_id => post.id), :method => :put, :remote => true, :class => "delete stream_element_delete", :title => t('hide')