Be able to trigger an action on click of (sub-string of) text in a notify

[davetapley]

My use case:

1. User clicks button to start processing job in the background.
2. When job is done I notify to let them know it's done.
3. The file is available at URL.

Right now I can make that URL 'actionable' with a button that webbrowser.open(url)'s ,
but I'd love it if they could click the notification.

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Two possibilities:

Easy: clicking notification triggers function.

Stretch: Be able to define 'link' in text which is clickable
(and maybe 'links' could be more broadly be available for strings in Textual).

[TomJGooding]

and maybe 'links' could be more broadly be available for strings in Textual

I think you can output links with Rich markup which it looks like notify supports from the examples. Sorry not at my computer at the moment to create a test, but give that a try?

[davetapley]

Ahhhh 'action links', I knew I've seen a feature like that before, but I couldn't find it and figured I'd dreamed it 😆

Thanks and especially thanks for the styling. I'll have a play around and open an issue for that if/when I can figure it out.

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Also I assume Textual actions links are better than Rich text links because the latter have the caveat:

If your terminal software supports hyperlinks, you will be able to click the word “blog” which will typically open a browser. If your terminal doesn’t support hyperlinks, you will see the text but it won’t be clickable.

But maybe they use the same mechanism under the hood anyway 🤔

Any insight @willmcgugan ? 🙏🏻

[TomJGooding]

Thanks and especially thanks for the styling. I'll have a play around and open an issue for that if/when I can figure it out.

No problem, my memory of these Textual links was a bit hazy too!

The Toast widget used by notify doesn't inherit the styling from the base class, so the "default" links styling defined in Widget is lost. You can obviously just add it back in like I've done here, but it might be nicer if you didn't have to do that - I might look at a PR.

[willmcgugan]

Links in Rich use a terminal protocol, which is fairly limited. Basically an app can't respond to them.

Action links are entirely managed by Textual, so you can do pretty much anything with them.

[TomJGooding]

Thanks Will, so just to clarify Rich link markup won't work in Textual? I found a couple of mentions in the docs which suggests they do.

[willmcgugan]

I'm surprised that they don't.

[darrenburns]

I just merged this PR from @TomJGooding - it was just some missing styling, the links in the notify were always actually clickable, it just wasn't obvious because they blended in with normal text - #3531

[TomJGooding]

Thanks Darren! Just to clarify for posterity, my PR was just a styling fix for Textual links. Whether Rich link markup should also work is a different question...