Make highlight-messages visible in a normal matrix client

[Stvad]

It'd be great if one could see the messages in the normal Matrix client and continue the discussion there!

people in #matrix-highlight:matrix.danilafe.com mentioned that you had some plans to do it @DanilaFe !

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I've actually built a quick prototype of this in my fork 🙃

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Architecture-wise I think the "correct" approach would be to rely on extensible events, but I failed to make those actually display in Element. (and they are still in the state of MSC with unclear acceptance date)

So for now prototype shoves everything into content of m.room.message - that worked! :)

[Stvad]

lmk if you'd be ok with accepting a PR with that prototype architecture!

[DanilaFe]

I would still be interested in this as a PR, particularly if you just modified the existing events sent by matrix highlight to include additional information.

[Stvad]

You can't do that, until Extensible Events is a thing. To be displayed in the normal matrix client, we currently need to pretend to be m.room.message with some custom fields on the side.

In my version this works well, the structure of the data remains the same, and I preserved the backwards compatibility with the old event type

[DanilaFe]

I find it quite upsetting that extensible events, unlike other MSCs, do not have an Element implementation. My current plan is to allow matrix highlight to handle message events, and put how it sends highlights behind a setting (toggle between custom event type and m.message)