Elegant way to trigger callback across files?

[aurexav]

I have:

• main.slint
• a.slint
• b.slint
• b/c.slint

I have a control button in b/c.slint, a scroll view in a.slint. When user click it the button, the view should scroll to the end.

In order to archive this, I have to:

// main.slint
a := a.slint::A {}
b.slint::B {
  scroll-to-end => { a.scroll-to-end(); }
}

// a.slint
A {
  callback scroll-to-end => {
    view.viewport-y = min(0, view.visible-height - view.viewport-height);
  }

  view := ScrollView {}
}

// b.slint
B {
  callback scroll-to-end();

  b/c.slint::Btn {
    scroll-to-end => { scroll-to-end(); }
  }
}

// b/c.slint
Btn {
  callback scroll-to-end();

  clicked => { scroll-to-end(); }
}

I have to throw up the callback one by one.

[hunger]

You could also have a global component that has a bunch of interesting callbacks and properties. You can import that global object everywhere needed. That can sometimes safe a lot of typing:-)

But yes, that will probably not work here... the only other option is what you are doing: Propagate the callback manually. #7813 proposes a more elegant way to do that, let's see how that PR fares.