User story:

As a user of the Collaboration List (either on Special:AllEvents or the transcluded Collaboration List), I want to quickly and easily be able to determine when there are and are not results for my search filters, so that I can easily make search adjustments or take informed next steps.

Background:

Right now, when someone enters a certain search in the Collaboration List, it is not always clear if they received any matches or not (since we don't have a clear empty state). Users may also not know to go to the Ongoing tab (since they don't know if there are any matches by default), and sometimes the Upcoming tab is closed, and the user may not clearly know that there are results if they open the tab.

We want to reduce this confusion, so it is easier for users of the Collaboration List (whether on Special:AllEvents or on a transcluded version of the Collaboration List) to know if results have been generated or not.

Acceptance Criteria:

• Develop design concepts with the goal to clarify the results generated from a given search in the collaboration list, which probably includes 2 things but could include more, and they are:
  • Display the number of results for the upcoming & ongoing tabs
  • Have an empty state for the upcoming and ongoing tabs - revisit https://phabricator.wikimedia.org/T382712