class app.views.BasePage extends app.View  constructor: (@el, @entry) -> super   deactivate: ->    if super      @highlightNodes = []   render: (content, fromCache = false) ->    @highlightNodes = []    @previousTiming = null    @addClass "_#{@entry.doc.type}" unless @constructor.className    @html content    @highlightCode() unless fromCache    @activate()    @delay @afterRender if @afterRender    if @highlightNodes.length > 0      $.requestAnimationFrame => $.requestAnimationFrame(@paintCode)    return   highlightCode: ->    for el in @findAll('pre[data-language]')      language = el.getAttribute('data-language')      el.classList.add("language-#{language}")      @highlightNodes.push(el)    return   paintCode: (timing) =>    if @previousTiming      if Math.round(1000 / (timing - @previousTiming)) > 50 # fps        @nodesPerFrame = Math.round(Math.min(@nodesPerFrame * 1.25, 50))      else        @nodesPerFrame = Math.round(Math.max(@nodesPerFrame * .8, 10))    else      @nodesPerFrame = 10     for el in @highlightNodes.splice(0, @nodesPerFrame)      $.remove(clipEl) if clipEl = el.lastElementChild      Prism.highlightElement(el)      $.append(el, clipEl) if clipEl     $.requestAnimationFrame(@paintCode) if @highlightNodes.length > 0    @previousTiming = timing    return