openproject/frontend/app/components/wp-activity/activity-entry.directive.html

<div id="activity-{{ activityNo }}">
  <div ng-switch="activityType">
    <revision-activity work-package="workPackage"
                       activity="activity"
                       activity-no="activityNo"
                       activity-label="activityLabel"
                       ng-switch-when="Revision">
    </revision-activity>
    <user-activity work-package="workPackage"
                   activity="activity"
                   activity-no="activityNo"
                   activity-label="activityLabel"
                   is-initial="isInitial"
                   autocomplete-path="{{ autocompletePath }}"
                   ng-switch-default>
    </user-activity>
  </div>
</div>