Way to intercept link clicks when rendering markdown?

[bradparks]

I'd like to intercept all link clicks in markdown, and do something different with them internally.

So for example, if markdown was rendered for a link like so:

https://someWebsite.com

and someone clicked on that link, then the link wouldn't be opened in the browser, but would fire an event in my code.

Thanks for any suggestions!

[willmcgugan]

Afraid not. It's the terminal itself that decides what to do when the link is clicked. AFAIK there is no way to intercept those.

[bradparks]

that looks super cool - so with Texutual, what would the 2 line exectuvive summary of the approach be? Not asking for code, just broad strokes on where to start

and to be clear, my intent is to have a simple markup anyone can use, that renders links that I can fire off callback in code

[willmcgugan]

You can attach a link to text with this syntax "Hello [@click=hello]World[/]" Which would call an action:

def action_hello():
    # World was clicked

[bradparks]

awesome - thanks - much appreciated!

[bradparks]

So I tried this, but don't seem to be able to get it to work - here's a sample that renders some text, and should make the "World" clickable, I believe, but the "action_hello" method is never called. I've tried it with a self param and no self self param, but seem to be missing something.

I also bound the "b" key to do pretty much the same thing, so I could see it work
It should change the background color, and the subtitle of the app.
Thanks for any pointers!

import os
import sys
from rich.console import RenderableType
from rich.panel import Panel
from rich.text import Text
from textual.app import App
from textual.widgets import Header, Footer, ScrollView
from textual.widgets import Placeholder

class MyApp(App):

    async def on_load(self) -> None:
        await self.bind("b", "color('blue')")

    async def on_mount(self) -> None:
        await self.view.dock(Header(), size=5, edge="top")
        await self.view.dock(Footer(), edge="bottom")
        await self.view.dock(ScrollView(Panel("Hello [@click=hello]World[/], [red]more[/] text")), edge="top")

    async def action_color(self, color:str) -> None:
        self.app.sub_title = "KEYBOARD"
        self.background = f"on {color}"

    async def action_hello(self) -> None:
        self.app.sub_title = "CLICKED"
        self.background = "on red"

MyApp.run(title="Test click", log="textual.log")

[bradparks]

I will take this over to the textual discussions, as that's probably where it's best asked of course

Textualize/textual#323