Disable MathJax when output panel is hidden

[fgdorais]

I was recently editing a math-heavy document. Since the output panel re-renders the whole document after each edit, the math processing eventually slowed things down to a crawl. I expected that hiding the output panel would disable math processing and allow me to edit at normal speed, but it looks like math is still being processed when the output panel is hidden.

[benweet]

Hi, can you provide info about your hardware configuration and the content of the document (an example would be nice). Thx.

[benweet]

It's a bit complicated. I could disable all the markdown conversion. The problem is that html export (save and publish) relies on the preview and would have to be disabled when the panel is hidden... not nice.

[pkra]

How about triggering a typesetting when exporting (and wait for it to finish)? See this discussion for some suggestions regarding MathJax.

[benweet]

Hi @pkra
It would require a bit of refactoring to make the export asynchronous. Anyway, I will have to think about it...

[pkra]

Yes, I can imagine. Not sure if this is a real alternative, but you could also switch the MathJax output-renderer to MathML when hiding the output panel. MathML-output won't be readable except on Firefox, but will eliminate speed issues. See http://docs.mathjax.org/en/latest/api/hub.html#api-hub for the APIs. Of course, you'd still have to make sure that everything's re-typeset as HTML-CSS before exporting, so I'm not sure that this actually helps...

[pkra]

BTW, this is certainly a workaround for @fgdorais -- switch the renderer manually to MathML.

[benweet]

Or disable MathJax in Settings->Extensions...

[benweet]

Hi @pkra Can you have look into this... Thanks

[pkra]

Just did.

[benweet]

@pkra Thank you for your answer. I tried what you recommended but without much success... So I just opened an issue in MathJax.

[benweet]

I just commited my work on partial rendering (#47). @fgdorais that should fix your problem?

[fgdorais]

@benweet it's a lot faster now. Editing the most problematic document on my samsung chromebook is not impossible anymore.

[benweet]

Closing as too old.