<div ng-switch="datepickerMode" role="application" ng-keydown="keydown($event)">
  <uib-daypicker ng-switch-when="day" tabindex="0"></uib-daypicker>
  <uib-monthpicker ng-switch-when="month" tabindex="0"></uib-monthpicker>
  <uib-yearpicker ng-switch-when="year" tabindex="0"></uib-yearpicker>
</div>