How to implement ruler?

v6
#1

Hi. Is there a possibility to add ruler (vertical line) in v6? In v5 it’s possible. Didn’t find anything similar in the documentation.

#2

That’s not part of the library for 6.x, but the way you’d implement it would be something like this:

  • Create a view plugin that adds an absolutely positioned element to view.scrollDOM. Give it some kind of left border so that it’s visible

  • On init, and whenever the plugin gets an update that has the heightChanged flag set, set the element’s left to X * view.defaultCharacterWidth, and its height to view.contentHeight.