EmptyState builder

new(ident: impl Into<Ident>, title: impl Into<SharedString>) -> Self

Chain onto the value.

kind(kind: EmptyKind) -> Self
icon(glyph: Icon) -> Self
detail(detail: impl Into<SharedString>) -> Self
action(action: impl IntoElement) -> Self

fn empty_state(_window: &mut Window, cx: &mut App) -> AnyElement {
    let theme = cx.theme().clone();
    // An empty state fills the region whose contents are missing. Drawn on
    // bare canvas it reads as loose centred text with no edge to be centred
    // in, which is the one thing it never is in a product.
    let region = |state: EmptyState| {
        div()
            .w_full()
            .radius(&theme, Radius::Card)
            .frame(&theme, Surface::Panel, Elevation::Raised)
            .child(state)
    };
    stack(&theme)
        .w(px(560.0))
        .child(caption(&theme, "Nothing has been started yet"))
        .child(region(
            EmptyState::new("scene.empty-state.unstarted", "No runs yet")
                .kind(EmptyKind::Unstarted)
                .detail("A run appears here once one has been started."),
        ))
        .child(caption(&theme, "The host refused, and says so"))
        .child(region(
            EmptyState::new(
                "scene.empty-state.unavailable",
                "The host refused the request",
            )
            .kind(EmptyKind::Unavailable)
            .detail("Approval is required for this workspace.")
            .action(
                Button::new("scene.empty-state.retry")
                    .label("Try again")
                    .on_click(|_, _| {}),
            ),
        ))
        .child(caption(&theme, "A collection that really is empty"))
        .child(region(
            EmptyState::new("scene.empty-state.empty", "No runs match “failing”")
                .kind(EmptyKind::Empty)
                .detail("Clear the filter to see every run."),
        ))
        .child(caption(&theme, "It was tried, and it failed"))
        .child(region(
            EmptyState::new("scene.empty-state.failed", "The run could not be read")
                .kind(EmptyKind::Failed)
                .detail("The snapshot on disk is from a newer version of the format.")
                .action(
                    Button::new("scene.empty-state.reload")
                        .label("Reload")
                        .on_click(|_, _| {}),
                ),
        ))
        .child(caption(
            &theme,
            "The host refused because the reader is not allowed",
        ))
        .child(region(
            EmptyState::new("scene.empty-state.unauthorized", "This workspace is locked")
                .kind(EmptyKind::Unauthorized)
                .detail("Ask an owner to grant access."),
        ))
        .into_any_element()
}