Click button to get filepath . How to pass it to another button?

[LeeeSe]

use dali::choose_video_file;

slint::include_modules!();

fn main() -> Result<(), slint::PlatformError> {
    let ui: AppWindow = AppWindow::new()?;
    let ui_handle: slint::Weak<AppWindow> = ui.as_weak();
    let mut input: Option<std::path::PathBuf> = None;

    ui.on_choose_video_file(move || {
        input = choose_video_file();
        if !input.is_none() {
            ui_handle.unwrap().set_compress_enabled(true);
        }
    });

    ui.on_compress_video(move || {
        println!("{:?}", input);
        todo!()
    });

    ui.run()
}

I don't know what to do, I don't think I should do it this way, is there another standard way to do it?

[bjorn]

You could add a string property to your AppWindow to store the chosen path there, then read it from there in the on_compress_video callback (or pass it in as parameter). This would have the added benefit, that you can easily display the selected value in the UI.

If you want to avoid doing that you need to code your input in a way that the two closures can both reference the same value. You can do this for example by constructing an Rc<RefCell<Option<PathBuf>>> using Rc::new(RefCell::new(input)), cloning that reference-counted value for each closure, and using .borrow_mut() and .borrow() in the first and last closure respectively.

(Note that I'm still relatively new to Rust, there might be better ways...)

[LeeeSe]

Thank you for your reply, I think the first method would be better, as I need to show the file path in the UI to alert the user