text: define(['lodash', 'jquery'], function(_, $) {
  
      var FileBox = function ($el) {
        this.$el = $el
        this.init()
      }
      FileBox.prototype.init = function () {
        var $file = this.$el.find(':file')
        var $text = this.$el.find('.file-text')
        var defaultText = $text.text()
  
        $file.on('change', function () {
          var files = $file.prop('files')
          if (files.length > 0) {
            $text.text(files[0].name)
          } else {
            $text.text(defaultText)
          }
        })
      }
      FileBox.bind = function ($el) {
        return new FileBox($el)
      }
    
      return FileBox
    })