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devdocs/assets/javascripts/views/pages/base.coffee

49 lines
1.4 KiB

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
@prepare?() unless fromCache
@activate()
@delay @afterRender if @afterRender
if @highlightNodes.length > 0
$.requestAnimationFrame => $.requestAnimationFrame(@paintCode)
return
highlightCode: (el, language) ->
return unless language
language = "language-#{language}"
if $.isCollection(el)
for e in el
e.classList.add(language)
@highlightNodes.push(e)
else if el
el.classList.add(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