Generating List Item Widgets Asynchronously

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I was able to resolve my problem taking a slightly different approach, but I only found this solution after thinking about your solution. :slight_smile:

I used glib::spawn_future_local and async-channel to asynchronously await the spawned ffmpeg process until completion.

let (tx, rx) = async_channel::bounded(1);

glib::spawn_future_local(clone!(@strong tx => async move {
    if let Ok(path) = generate_thumbnail_image(&absolute_path).await {
        tx.send(path).await.expect("Async channel needs to be open.");
    } else {
        g_critical!("LibraryView", "FFmpeg failed to generate a thumbnail image.");
    }
}));

glib::spawn_future_local(clone!(@weak image => async move {
    while let Ok(path) = rx.recv().await {
        image.clear();
        image.set_file(Some(&path));
    }
}));

Thank you again for your help!

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