class app.views.Search extends app.View  SEARCH_PARAM = app.config.search_param   @el: '._search'  @activeClass: '_search-active'   @elements:    input:     '._search-input'    resetLink: '._search-clear'   @events:    input:  'onInput'    click:  'onClick'    submit: 'onSubmit'   @shortcuts:    typing: 'focus'    altG: 'google'    altS: 'stackoverflow'    altD: 'duckduckgo'   @routes:    after: 'afterRoute'   init: ->    @addSubview @scope = new app.views.SearchScope @el     @searcher = new app.Searcher    @searcher      .on 'results', @onResults      .on 'end', @onEnd     @scope      .on 'change', @onScopeChange     app.on 'ready', @onReady    $.on window, 'hashchange', @searchUrl    $.on window, 'focus', @onWindowFocus    return   focus: =>    @input.focus() unless document.activeElement is @input    return   autoFocus: =>    unless app.isMobile() or $.isAndroid() or $.isIOS()      @input.focus() unless document.activeElement?.tagName is 'INPUT'    return   onWindowFocus: (event) =>    @autoFocus() if event.target is window   getScopeDoc: ->    @scope.getScope() if @scope.isActive()   reset: (force) ->    @scope.reset() if force or not @input.value    @el.reset()    @onInput()    @autoFocus()    return   onReady: =>    @value = ''    @delay @onInput    return   onInput: =>    return if not @value? or # ignore events pre-"ready"              @value is @input.value    @value = @input.value     if @value.length      @search()    else      @clear()    return   search: (url = false) ->    @addClass @constructor.activeClass    @trigger 'searching'     @hasResults = null    @flags = urlSearch: url, initialResults: true    @searcher.find @scope.getScope().entries.all(), 'text', @value    return   searchUrl: =>    if location.pathname is '/'      @scope.searchUrl()    else if not app.router.isIndex()      return     return unless value = @extractHashValue()    @input.value = @value = value    @input.setSelectionRange(value.length, value.length)    @search true    true   clear: ->    @removeClass @constructor.activeClass    @trigger 'clear'    return   externalSearch: (url) ->    if value = @value      value = "#{@scope.name()} #{value}" if @scope.name()      $.popup "#{url}#{encodeURIComponent value}"      @reset()    return   google: =>    @externalSearch "https://www.google.com/search?q="    return   stackoverflow: =>    @externalSearch "https://stackoverflow.com/search?q="    return   duckduckgo: =>    @externalSearch "https://duckduckgo.com/?t=devdocs&q="    return   onResults: (results) =>    @hasResults = true if results.length    @trigger 'results', results, @flags    @flags.initialResults = false    return   onEnd: =>    @trigger 'noresults' unless @hasResults    return   onClick: (event) =>    if event.target is @resetLink      $.stopEvent(event)      @reset()    return   onSubmit: (event) ->    $.stopEvent(event)    return   onScopeChange: =>    @value = ''    @onInput()    return   afterRoute: (name, context) =>    return if app.shortcuts.eventInProgress?.name is 'escape'    @reset(true) if not context.init and app.router.isIndex()    @delay @searchUrl if context.hash    $.requestAnimationFrame @autoFocus    return   extractHashValue: ->    if (value = @getHashValue())?      app.router.replaceHash()      value   HASH_RGX = new RegExp "^##{SEARCH_PARAM}=(.*)"   getHashValue: ->    try HASH_RGX.exec($.urlDecode location.hash)?[1] catch