Add "jump to message" functionality

[claell]

I was told that functions like element-hq/element-x-android#2116 or element-hq/element-x-android#2268 or element-hq/element-x-android#1472 would require functionality in the Rust SDK.

I cannot confirm whether that information is correct, or whether this functionality can be implemented solely on the application side without touching the SDK. But I didn't find an issue about this, so I thought, I'll create one to see what the status (and responsibility) of this is.

@frebib for reference.

[cyrneko]

I think "Creating a timeline from a specific point in the history" from #1103 is intended to track this

[jplatte]

I think "Creating a timeline from a specific point in the history" from #1103 is intended to track this

Yes, exactly! 👍

[claell]

Thanks for the hint!

So it is correct, that this can't be done solely on Client side, but requires the Rust SDK to have it? Are jumps in Element Web with Rust SDK not available, then?

And, if this is needed, is there a rough ETA? To me, some of the linked Element X Android issues are rather important for regular adoption.

[manuroe]

Permalink support work is going to start in EX and in the SDK but there are several dependencies we want to complete before. The permalink support itself should be available end of April.
I am closing this issue because it is a duplicate and "jump to message" is more an app feature than a SDK one.

[bnjbvr]

For what it's worth: with the assumption that the target message isn't too far in the past, it's possible to implement that functionality client-side by using backpagination in the (ui-crate) Timeline, or equivalently calling Room::messages() in a loop, until we find the message. Or using the Room::event_with_context which calls the /context endpoint, and may return a few messages before and after, if you don't mind the timeline not being continuous.