Include {.tabset} functionality in rendered articles

[seanhardison1]

Is it possible to include {.tabset} style dropdowns in pkgdown articles? This would be helpful for creating visualization-heavy articles.

[hadley]

How does this work outside of pkgdown? That's the first problem to solve.

[seanhardison1]

Here's an example of what I'm talking about in a standard rmd rendered to html

---
title: "tabset test"
author: "Sean Hardison"
date: "3/1/2019"
output: html_document
---


## Section X {.tabset}


### X.1

```{r, echo = T}
plot(rnorm(30))
```


### X.2 

```{r, echo = T}
plot(rnorm(30))
```

The output looks like this:

Maybe this is already possible through pkgdown? Tabset syntax is ignored in pkgdown::build_articles() as far as I'm aware.

[jayhesselberth]

The tabset classes are in the pkgdown vignette output, so I think we'd just need to copy the rmarkdown jquery plugin and some css into pkgdown.

Edit: actually it's more complicated that this, the markdown is processed in a specific way to generate tab contents, and pkgdown isn't doing that part. Because pkgdown uses html_document internally, it's probably doable, but will take some more digging.

[jgranja24]

Is this still an outstanding feature? The tabsets are incredibly useful for building nice turorials.

[hadley]

I think unfortunately this is out of scope for pkgdown; in order to get the output of RMarkdown into pkgdown's templates we already have to do a lot of fiddly manipulation, so adding this feature is both difficult and likely to introduce unexpected issues further down the road.

[maelle]

Not sure why GitHub is showing me this issue in my notifications, but in the meantime there are tabsets for articles via #1694