Feature request: To disable scribble on a specific slide

[koliajaykr]

Scribble is a fantastic feature. But it will be nice if we can disable the scribble feature on a few selective slides like the title slide.

Thank you

[mattwarkentin]

@gadenbuie I think this would be relatively straightforward and primarily require some changes to the function below to check for a class and skip instantiating a canvas if the class is present (rather than adding a canvas to all slides, by default). Let me know if you want me to attempt the feature request. https://github.com/gadenbuie/xaringanExtra/blob/ae6a5ad369a655682c4a57aece88b4660d9fe62d/inst/scribble/scribble.js#L150-L173

[gadenbuie]

I think maybe the request is coming from the opposite angle, which would be to hide the controls on specific slides. That's a different problem since the controls aren't a child of the element with the slide class and we'd want to ensure the controls still appear when summoned via the keyboard shortcuts.

[gadenbuie]

oh and @mattwarkentin of course a PR would be much appreciated if you want to! 😄

[mattwarkentin]

@gadenbuie You're totally right. I misunderstood the original request. Sending PR imminently...