Often I want to access a specific part of the doc and do something like render a decoration, modify text, etc. This requires knowing the startPos and endPos relative to the root doc node. In order to get this, as far as I know, the best way is to either start from the currentSelection if you want to do something relative to that, or to write a function to traverse the doc tree and keep count until you hit the node you want to do something with.
I’m curious conceptually why not just store a startPos and endPos in state for each Node? It seems like a useful common thing people might want to have easy access to. The fact that it’s not there makes me suspect I’m misunderstanding something important about ProseMirror state though.
Thanks!