code: function(e) {
  			var self = this;
  	
  			if (self.isLocked) return e && e.preventDefault();
  			var value = self.$control_input.val() || '';
  			if (self.lastValue !== value) {
  				self.lastValue = value;
  				self.onSearchChange(value);
  				self.refreshOptions();
  				self.trigger('type', value);
  			}
  		}
docs: Triggered on <input> keyup.
  
  @param {object} e
  @returns {boolean}