Improve performance of EntryPage#render

assets/javascripts/views/content/entry_page.coffee

@@ -41,10 +41,10 @@ class app.views.EntryPage extends app.View
     return
 
   CLIPBOARD_LINK = '<a class="_pre-clip" title="Copy to clipboard" tabindex="-1"></a>'
+  PRE_TAGS = /<pre[^>]*>/g
 
   addClipboardLinks: ->
-    for el in @findAllByTag('pre')
-      el.insertAdjacentHTML('afterbegin', CLIPBOARD_LINK)
+    @el.innerHTML = @el.innerHTML.replace(PRE_TAGS, "$&#{CLIPBOARD_LINK}")
     return
 
   LINKS =

assets/javascripts/views/pages/base.coffee

@@ -10,6 +10,7 @@ class app.views.BasePage extends app.View
     return
 
   highlightCode: (el, language) ->
+    return unless language
     if $.isCollection(el)
       @highlightCode e, language for e in el
     else if el

assets/javascripts/views/pages/simple.coffee

@@ -2,7 +2,7 @@
 
 class app.views.SimplePage extends app.views.BasePage
   prepare: ->
-    for el in @findAllByTag('pre') when el.hasAttribute('data-language')
+    for el in @findAll('pre[data-language]')
       @highlightCode el, el.getAttribute('data-language')
     return