Handling checkbox/checklist

[dtrckd]

Hello,

I am trying to handle clicks within checkbox (- [ ] foo bar) in a markdown that I render.
I believe that I need the line number corresponding to that item in the raw string in order to proceed.

Do you think it is possible to get that line number with elm-markdown ?
Or maybe there is a different approach to handle msg for checkbox that has been tried before ?

[dillonkearns]

I believe you could create your custom Renderer with the unorderedList : List (ListItem view) -> view field rendering to your type of Html Msg in the case that the ListItem is a Task.

[dtrckd]

Yes, this is what I have created. I can handle click on a task, but how are we supposed to know what line has/task has been clicked ??

[dillonkearns]

You can do a List.indexedMap to get the index within the list.

[dtrckd]

But what if they are multiple (group of) checklists in the string ?

[dillonkearns]

Good question, that might not be possible to capture with a standard renderer there. I'd be open to a pull request or an issue to explore possible solutions there. I'm not sure if the parser stores that context currently, or what context exactly it should include. The simplest thing I would imagine would be for it to include the nested index level (the parser might not have that information yet). To include the raw item might be harder possibly.

I believe you can accomplish this with the helpers in the matheus23/elm-markdown-transforms package, like https://package.elm-lang.org/packages/matheus23/elm-markdown-transforms/latest/Markdown-Scaffolded#foldIndexed.

[dtrckd]

Thanks for the links Dillon, I am going to explore that.