class app.views.SearchScope extends app.View  SEARCH_PARAM = app.config.search_param   @elements:    input: '._search-input'    tag:   '._search-tag'   @events:    click: 'onClick'    keydown: 'onKeydown'    textInput: 'onTextInput'   @routes:    after: 'afterRoute'   constructor: (@el) -> super   init: ->    @placeholder = @input.getAttribute 'placeholder'     @searcher = new app.SynchronousSearcher      fuzzy_min_length: 2      max_results: 1    @searcher.on 'results', @onResults     return   getScope: ->    @doc or app   isActive: ->    !!@doc   name: ->    @doc?.name   search: (value, searchDisabled = false) ->    return if @doc    @searcher.find app.docs.all(), 'text', value    @searcher.find app.disabledDocs.all(), 'text', value if not @doc and searchDisabled    return   searchUrl: ->    if value = @extractHashValue()      @search value, true    return   onResults: (results) =>    return unless doc = results[0]    if app.docs.contains(doc)      @selectDoc(doc)    else      @redirectToDoc(doc)    return   selectDoc: (doc) ->    previousDoc = @doc    return if doc is previousDoc    @doc = doc     @tag.textContent = doc.fullName    @tag.style.display = 'block'     @input.removeAttribute 'placeholder'    @input.value = @input.value[@input.selectionStart..]    @input.style.paddingLeft = @tag.offsetWidth + 10 + 'px'     $.trigger @input, 'input'    @trigger 'change', @doc, previousDoc    return   redirectToDoc: (doc) ->    hash = location.hash    app.router.replaceHash('')    location.assign doc.fullPath() + hash    return   reset: =>    return unless @doc    previousDoc = @doc    @doc = null     @tag.textContent = ''    @tag.style.display = 'none'     @input.setAttribute 'placeholder', @placeholder    @input.style.paddingLeft = ''     @trigger 'change', null, previousDoc    return   doScopeSearch: (event) =>    @search @input.value[0...@input.selectionStart]    $.stopEvent(event) if @doc    return   onClick: (event) =>    if event.target is @tag      @reset()      $.stopEvent(event)    return   onKeydown: (event) =>    if event.which is 8 # backspace      if @doc and @input.selectionEnd is 0        @reset()        $.stopEvent(event)    else if not @doc and @input.value and not $.isChromeForAndroid()      return if event.ctrlKey or event.metaKey or event.altKey or event.shiftKey      if event.which is 9 or # tab         (event.which is 32 and app.isMobile()) # space        @doScopeSearch(event)    return   onTextInput: (event) =>    return unless $.isChromeForAndroid()    if not @doc and @input.value and event.data == ' '      @doScopeSearch(event)    return   extractHashValue: ->    if value = @getHashValue()      newHash = $.urlDecode(location.hash).replace "##{SEARCH_PARAM}=#{value} ", "##{SEARCH_PARAM}="      app.router.replaceHash(newHash)      value   HASH_RGX = new RegExp "^##{SEARCH_PARAM}=(.+?) ."   getHashValue: ->    try HASH_RGX.exec($.urlDecode location.hash)?[1] catch   afterRoute: (name, context) =>    if !app.isSingleDoc() and context.init and context.doc      @selectDoc(context.doc)    return