How to build undo/redo in a multiplayer environment by Liveblocks

Re:How to build undo/redo in a multiplayer environment by Li... by guillaumesalles on Thursday June 09, 2022 @12:13PM (#31683045)

For rich text editing, undo should probably reset the scroll position and the cursor close the edit you're undoing.

I think reseting the time position would also make sense for video editing.

So basically, it's a way to get back as much as possible in the context you were at the time of the operation that is undone.

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Re:How to build undo/redo in a multiplayer environment by Li... by aranchelk on Thursday June 09, 2022 @12:48PM (#31683549)

Thank you, this is both a good and nuanced example.

It would likely be a better UX if that scrolling (etc) brought the user back to the exact context they made that edit, but in the interest of laziness and impatience I'm just using a generic focus function.

It might be nice to have more exact context data available for the life of a session as a progressive enhancement, though I think it would have to be a clever encoding, else that data would be invalid in cases such as window resizes and edits made by collaborators that change position of the object being edited.

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