Router: Active class if target's URL is within current URL

[DogeDark]

Specific Demand

Add the ability to let the user tell the Link prop to provide the active_class prop if the target's URL is within the current URL.

E.g, if the current URL is either /listings or /listings/random/url/:something, a Link component of the following, will provide the active_class:

Link {
    active_within_route: true, // Probably a better name than this
    active_class: "active",
    target: Route::MyTarget {}
    "my link text"
}

Note:
I imagine this is already possible with one of the router's hooks, however... I'm lazy.

Implement Suggestion

Add a new prop to the Link component that determines whether it should follow the proposed behavior.

[ealmloff]

Instead of a new prop how about a route.is_descendant_of(other_route) function?

[DogeDark]

Instead of a new prop how about a route.is_descendant_of(other_route) function?

I would like to avoid manual formatting but this sounds like a good compromise 👍

[tirithen]

In case anyone else wants a usage example for is_child_of I added one in this discussion thread #1946 (comment)