Filter conversation list for unread / mentioned conversations

[Ivansss]

Fix #1264

[SystemKeeper]

Working good in general 👍
Found some issues with filtering and searching.

Case 1:

• Filter for "Unread"
• Search for a term where no results are returned
• Cancel search

Expected: All rooms visible again
Actual: Only unread rooms visible (even though "All" is selected)

Case 2:

• Filter for unread
• Search for a term where no results are returned
• Remove the search term

Expected: Only unread rooms should be visible
Actual:

Both cases seem to have something to do with the 30s timer to update the rooms or atleast the 30s timer influences something here as well.

[Ivansss]

Nice catches! ;)

Case 1 fixed in 0b45173
Case 2 fixed in 96befff

[SystemKeeper]

Works :-)

I just noticed that we now have the case that we call self.tableView reloadData twice when refreshRoomList is called and we don't have a search string. Once it's done inside of filterRooms and once in refreshRoomList. Not sure if this will be a problem in the real world or if iOS might even optimize the two calls, but we should keep that in mind and optimize that in the long run.