MSC2545 support proof-of-concept

[ckiee]

There are a bazillion things wrong with this code, but I just wanted to put it out there in case anyone else would like to work on it, and just to get feedback about the idea.

Type: enhancement

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Here's what your changelog entry will look like:

✨ Features

• MSC2545 support proof-of-concept (#8897). Contributed by @ckiee.

TODO

Blockers

• (maybe?) Ensure the mediaFromMxc stuff would probably break in encrypted rooms.
• Move some stuff to matrix-js-sdk
• Check if there's changes after the initial getAccountData.
• Lab-gate this
• Rename component from Cookiestickerpicker.
• Sticker search!

Future

• Support images as custom emojis too
• Add a way to add image pack rooms to your user

[ckiee]

cc matrix-org/matrix-spec-proposals#2545

[turt2live]

clearing code review while draft

[JiffyCat]

@ckiee is this PR still active? We want to consolidate the amount of competing PRs in order for the feature to move forward. Product is blocking #9240 since they have to review all competing PRs that are open. If not, please close this PR so #9240 can go forward. We support MSC2545 in that PR and can add further features once merged.

[ckiee]

Closing in favor of #9240 since it is clearly superior, though it is worth clearly noting that this PR implements the sticker portion of 2545, which has considerable overlap with the emojo section.