Problem with specific variables for Reveal.js

Problem with specific variables for Reveal.js

[Pranesh Prakash]

[-- Attachment #1.1: Type: text/plain, Size: 2881 bytes --]

Dear all,
I'm having one very specific issue when using Pandoc to create Reveal.js 
slide shows.  I believe the problem I see is with Reveal.js and not with 
Pandoc.  However, since I haven't received any feedback after noting this 
on the Reveal.js Github issues page, I thought I'd try my luck here.

***
https://github.com/hakimel/reveal.js/issues/2813

I am using pandoc (v2.11.0.2) to generate reveal.js (v4.0) slides. I've 
[created a file] which contains all the variables with the default values 
so that I can change them if needed.

The command I'm using is:  
`pandoc -d slides -t revealjs -o slides.html 2020-09-12-presentation.md 
--verbose`

However pandoc doesn't produce a working slide deck unless I comment out 
three specific variables:

1.  `controlsLayout: bottom-right`
2.  `controlsBackArrows: faded`
3.  `display: block`

If I don't comment these three variables, then I just text saying "// 
reveal.js plugins" in the HTML file.

Here's the [pandoc template] that reads the variables and uses it to 
generate the slide deck.

The relevant lines:  
https://github.com/jgm/pandoc/blob/2332a08f1e192de24f9ff425ed31f8dd20d1fa82/data/templates/default.revealjs#L94-L102

```
$if(controlsLayout)$
        // Determines where controls appear, "edges" or "bottom-right"
        controlsLayout: $controlsLayout$,
$endif$
$if(controlsBackArrows)$
        // Visibility rule for backwards navigation arrows; "faded", 
"hidden"
        // or "visible"
        controlsBackArrows: $controlsBackArrows$,
$endif$
```

and  
https://github.com/jgm/pandoc/blob/2332a08f1e192de24f9ff425ed31f8dd20d1fa82/data/templates/default.revealjs#L318-L321

```
$if(display)$
        // The display mode that will be used to show slides
        display: $display$,
$endif$
```

I'm not sure if it's an issue with pandoc or with reveal.js, but I suspect 
it's a reveal.js issue since all three of these variable seem to occur 
together in one function:  

```
/** 
* Called when the reveal.js config is updated. 
*/ 
configure( config, oldConfig ) { 

this.element.style.display = config.controls ? 'block' : 'none'; 

this.element.setAttribute( 'data-controls-layout', config.controlsLayout ); 
this.element.setAttribute( 'data-controls-back-arrows', config.
controlsBackArrows ); 
} 
```

[created a file]: 
https://gist.github.com/the-solipsist/6abfb6416e8f6cbdf5f193db212e4c47

[pandoc template]: 
https://github.com/jgm/pandoc/blob/master/data/templates/default.revealjs

-- 
You received this message because you are subscribed to the Google Groups "pandoc-discuss" group.
To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
To view this discussion on the web visit https://groups.google.com/d/msgid/pandoc-discuss/7cfe8475-dffe-4526-a81f-916bfc77f687n%40googlegroups.com.

[-- Attachment #1.2: Type: text/html, Size: 5437 bytes --]

Re: Problem with specific variables for Reveal.js

[John MacFarlane]

Thanks. I think I've fixed this in a commit I just  pushed
to the default template.

Pranesh Prakash <the.solipsist-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> Dear all,
> I'm having one very specific issue when using Pandoc to create Reveal.js 
> slide shows.  I believe the problem I see is with Reveal.js and not with 
> Pandoc.  However, since I haven't received any feedback after noting this 
> on the Reveal.js Github issues page, I thought I'd try my luck here.
>
> ***
> https://github.com/hakimel/reveal.js/issues/2813
>
> I am using pandoc (v2.11.0.2) to generate reveal.js (v4.0) slides. I've 
> [created a file] which contains all the variables with the default values 
> so that I can change them if needed.
>
> The command I'm using is:  
> `pandoc -d slides -t revealjs -o slides.html 2020-09-12-presentation.md 
> --verbose`
>
> However pandoc doesn't produce a working slide deck unless I comment out 
> three specific variables:
>
> 1.  `controlsLayout: bottom-right`
> 2.  `controlsBackArrows: faded`
> 3.  `display: block`
>
> If I don't comment these three variables, then I just text saying "// 
> reveal.js plugins" in the HTML file.
>
> Here's the [pandoc template] that reads the variables and uses it to 
> generate the slide deck.
>
> The relevant lines:  
> https://github.com/jgm/pandoc/blob/2332a08f1e192de24f9ff425ed31f8dd20d1fa82/data/templates/default.revealjs#L94-L102
>
> ```
> $if(controlsLayout)$
>         // Determines where controls appear, "edges" or "bottom-right"
>         controlsLayout: $controlsLayout$,
> $endif$
> $if(controlsBackArrows)$
>         // Visibility rule for backwards navigation arrows; "faded", 
> "hidden"
>         // or "visible"
>         controlsBackArrows: $controlsBackArrows$,
> $endif$
> ```
>
> and  
> https://github.com/jgm/pandoc/blob/2332a08f1e192de24f9ff425ed31f8dd20d1fa82/data/templates/default.revealjs#L318-L321
>
> ```
> $if(display)$
>         // The display mode that will be used to show slides
>         display: $display$,
> $endif$
> ```
>
> I'm not sure if it's an issue with pandoc or with reveal.js, but I suspect 
> it's a reveal.js issue since all three of these variable seem to occur 
> together in one function:  
>
> ```
> /** 
> * Called when the reveal.js config is updated. 
> */ 
> configure( config, oldConfig ) { 
>
> this.element.style.display = config.controls ? 'block' : 'none'; 
>
> this.element.setAttribute( 'data-controls-layout', config.controlsLayout ); 
> this.element.setAttribute( 'data-controls-back-arrows', config.
> controlsBackArrows ); 
> } 
> ```
>
> [created a file]: 
> https://gist.github.com/the-solipsist/6abfb6416e8f6cbdf5f193db212e4c47
>
> [pandoc template]: 
> https://github.com/jgm/pandoc/blob/master/data/templates/default.revealjs
>
> -- 
> You received this message because you are subscribed to the Google Groups "pandoc-discuss" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
> To view this discussion on the web visit https://groups.google.com/d/msgid/pandoc-discuss/7cfe8475-dffe-4526-a81f-916bfc77f687n%40googlegroups.com.