Support for asciicast:play window message removed

[fghaas]

I used the asciicast:play window event with much success from reveal.js a couple of years ago (see #175). I am trying to figure out where it went, because it no longer seems to be available the way it was.

• app/views/layouts/raw.html.slim (which contained the necessary functionality at the time) was renamed to app/views/layouts/bare.html.slim in edca762.
• Then, bare.html.slim became show.html.slim in 06c19ad.
• In baf1c96, it was decided that there is "no need for jQuery inside of an iframe", and in the process the $('.start-prompt').click(); was replaced with a TODO.
• Then, that TODO was dropped a couple of months ago as "dead code", in 5992e9b.

Now, there's no trace of the asciicast:play event left in the code, so what can I do to bring that functionality back?

[ku1ik]

Hej Florian! It seems we lost it indeed. Like you found out, there was a chain of loosely related changes. And to be honest, I thought "nobody uses this anyway", as this functionality wasn't officially documented. My bad 😬

Let me take a look at this!

[fghaas]

Thanks for looking into this. To be fair, I never managed to get the functionality into reveal.js proper (see discussion in hakimel/reveal.js#1382).

By the way, since you're already considering bringing it back. To just cover the reveal.js use case, it posts a generic slide:start message to all embedded iframes, so if you want to add that in addition to bringing back the old asciicast:play event, then reveal could even auto-start playback without modifications at all (see here).

[ku1ik]

Thanks for bringing up reveal.js sent events, this is cool.

Anyway, I've brought back the original event handling + added reveal.js support in #251.

[ku1ik]

Fixed in #251