Trait ButtonStyle 

pub trait ButtonStyle: 'static {
    // Required method
    fn make_body(
        &self,
        cfg: &ButtonStyleConfig,
        ctx: &mut BuildContext<'_>,
    ) -> WidgetId;

    // Provided method
    fn label_text_role(&self, _variant: ButtonVariant) -> Option<TextRole> { ... }
}

Style protocol for Button. The active style owns all paint and layering — it receives the label subtree pre-built and arranges background, border, focus ring, padding, etc. around it.

'static (no Send + Sync) because the rest of teksilo-core is already single-threaded (Signal uses Rc); enforcing thread safety here would be inconsistent and pay no benefit.

Required Methods

fn make_body( &self, cfg: &ButtonStyleConfig, ctx: &mut BuildContext<'_>, ) -> WidgetId

Provided Methods

fn label_text_role(&self, _variant: ButtonVariant) -> Option<TextRole>

Optional per-variant override of the label/icon text role.

The Button picks its label color from its built-in variant→role mapping (OnAccent for accent-filled variants, Primary otherwise, Link for Link) before the style runs. Returning Some(role) here lets a design-language style redirect it — e.g. Material 3 paints text/outlined buttons in the accent color (TextRole::Accent) rather than Primary.

Default None preserves the built-in mapping, so existing styles (and the IntUI default) are unaffected. A per-call Button::text_role(...) still wins over this.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors