Add support for hyperlinks in text (OSC8)

[lypanov]

An interesting specification to add hyperlinking support directly to terminal emulators has been created, see: https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda

I'd like to use this support in a small patch I'm creating for the application alot which uses urwid as it's TUI layer.

I've created a patch for URWID to add such functionality and would love feedback on it. I'll upload the patch to a PR as soon as I've cleaned it up enough for public eyes.

Would you be interested in such a patch?

[tonycpsu]

Certainly!

[lypanov]

Sorry delayed on this until I find the time to finish off my MR. My current branch is at: lypanov@a6351f6

It fills my need (I have working but weird looking links in alot) but right now it's both a mess and incomplete.

[danschwarz]

Any update on this? I see your code and the ansi widget where you've implemented the feature.

I tried to implement this for the Toot Mastodon client, and in my first pass I took a different approach; I have a wrapper that can surround text with an OCS 8 escape sequence and turn it into a clickable hyperlink. This is OK for a standalone link, but insufficient for rendering a hyperlink within a block of ordinary text.

It'd be ideal to have a new Text widget that includes support for embedding hyperlinks with the OCS 8 sequence. I've tried several different approaches to modify the Text widget and add that feature. Haven't found an elegant way to implement it, yet.

[lypanov]

Sorry for the lack of feedback here. Once my RSI has calmed down I'm hoping to resurrect my merge request which I assume conflicts horribly with the latest version of urwid. I'm unsure what the best approach is alas. The approach I took in the patch set was the most pragmatic route to getting it working for my specific use case. I'm happy there seems to be more interest in OSC 8 at least. I chose Ansi Widget purely because this was the route that alot took for some complex rendering and I based my work upon that. I'll check the status of that work also.

[danschwarz]

There's a nice solution in the Urwidgets project by @AnonymouX47 , a Hyperlink widget plus a TextEmbed widget. I've been working with it.