Reaction improvements

[kiliankoe]

• The emoji picker should show a full list of emoji (see Grid based Emoji Picker #159).
• Visible reactions on a message should be interactable.
  • Send existing emoji by tapping on them.
  • "Unsending" (redacting) already sent emoji.
  • They're also way too small currently.
• Show info on reactions (who sent what).
• Reactions are rather small with a very small system font size.
• Visible reactions should be sorted by date received, not string order.
  • Possibly remove count for emoji that have only been sent once
• Support emoji shortcodes (e.g. :+1:)
• Custom emotes

Just for reference, here's what Slack's and Signal's (this probably isn't possible with the current context menu APIs) emoji picker looks like.

[regexident]

It would also be nice to support named emoji (e.g. :+1: for 👍🏻).

[regexident]

I guess we'll want to wait for Apple to introduce a SwiftUI equivalent for UICollectionView first, though. 😅

[kiliankoe]

Yeah, I was trying to build the picker on top of a bunch of UICollectionView-esque SwiftUI libs, to no avail. It's pretty much contained, so we could just use a normal collection view, but I'm fairly certain Apple is bringing us something in this regard next month. It's just too big of a thing not to support in SwiftUI.

Another thing that's been bugging me is how some emoji get shown as their "classic unicode representation" and not as emoji, like ☝️ and ☝.

Wow, even GitHub normalizes it! This is what it looks like during editing:

It's super ugly. Riot iOS has the same issue.
Rob Napier held a cool talk at UIKonf last week and one part was probably applicable to this. We could try adding a variation selector to the relevant reactions.

[regexident]

There really should be an official emoji picker in both, UIKit and SwiftUI. 😕

[kiliankoe]

I've submitted feedback for some API for (efficiently) working with emoji data. Nobody wants to maintain that list... Slack hasn't updated theirs in months and every similar app has to do the same. Emoji are bundled with OS updates on Darwin platforms and should be accessible that way as well.