class app.views.DocPicker extends app.View  @className: '_list _list-picker'   @events:    mousedown: 'onMouseDown'    mouseup: 'onMouseUp'   init: ->    @addSubview @listFold = new app.views.ListFold(@el)    return   activate: ->    if super      @render()      $.on @el, 'focus', @onDOMFocus, true    return   deactivate: ->    if super      @empty()      $.off @el, 'focus', @onDOMFocus, true      @focusEl = null    return   render: ->    html = @tmpl('docPickerHeader')    docs = app.docs.all().concat(app.disabledDocs.all()...)     while doc = docs.shift()      if doc.version?        [docs, versions] = @extractVersions(docs, doc)        html += @tmpl('sidebarVersionedDoc', doc, @renderVersions(versions), open: app.docs.contains(doc))      else        html += @tmpl('sidebarLabel', doc, checked: app.docs.contains(doc))     @html html + @tmpl('docPickerNote')     $.requestAnimationFrame => @findByTag('input')?.focus()    return   renderVersions: (docs) ->    html = ''    html += @tmpl('sidebarLabel', doc, checked: app.docs.contains(doc)) for doc in docs    html   extractVersions: (originalDocs, version) ->    docs = []    versions = [version]    for doc in originalDocs      (if doc.name is version.name then versions else docs).push(doc)    [docs, versions]   empty: ->    @resetClass()    super    return   getSelectedDocs: ->    for input in @findAllByTag 'input' when input?.checked      input.name   onMouseDown: =>    @mouseDown = Date.now()    return   onMouseUp: =>    @mouseUp = Date.now()    return   onDOMFocus: (event) =>    target = event.target    if target.tagName is 'INPUT'      unless (@mouseDown and Date.now() < @mouseDown + 100) or (@mouseUp and Date.now() < @mouseUp + 100)        $.scrollTo target.parentNode, null, 'continuous'    else if target.classList.contains(app.views.ListFold.targetClass)      target.blur()      unless @mouseDown and Date.now() < @mouseDown + 100        if @focusEl is $('input', target.nextElementSibling)          @listFold.close(target) if target.classList.contains(app.views.ListFold.activeClass)          prev = target.previousElementSibling          prev = prev.previousElementSibling until prev.tagName is 'LABEL' or prev.classList.contains(app.views.ListFold.targetClass)          prev = $.makeArray($$('input', prev.nextElementSibling)).pop() if prev.classList.contains(app.views.ListFold.activeClass)          @delay -> prev.focus()        else          @listFold.open(target) unless target.classList.contains(app.views.ListFold.activeClass)          @delay -> $('input', target.nextElementSibling).focus()    @focusEl = target    return