Struct SurfaceScaffold 

pub struct SurfaceScaffold { /* private fields */ }

A full-viewport scaffold that positions a panel against a screen edge, optionally dims the area behind it, and dismisses on a press outside the panel. It is the reusable body of a drawer/modal: a shell mounts it as the root of a full-screen layer-shell surface, and a windowed app can mount it in-tree as an in-window portal — both get the same positioning and dismiss behaviour.

Like other full-surface roots it (re)computes its own layout on WindowResized; the runner synthesizes an initial one on resume, so the scaffold is laid out before its first frame.

Implementations

impl SurfaceScaffold

pub fn new( edge: Edge, align: AlignItems, margin: (i32, i32, i32, i32), scrim: Option<Color>, dismiss: Option<Rc<dyn Fn()>>, content: Box<dyn LayoutItem>, ) -> Result<Self, LayoutError>

margin is (top, right, bottom, left) and becomes padding on all four sides, so the panel floats off every viewport edge rather than only the one it is pinned to. scrim paints behind the panel when set (see DEFAULT_SCRIM); dismiss fires on a press outside it, and None means outside presses fall through.

pub fn animate_in(self) -> Self

pub fn animate(self, transition: SurfaceTransition) -> Self

Drives the scaffold from a transition the caller owns, so it can also send the surface back out — see SurfaceTransition::leave.

Trait Implementations

impl Component for SurfaceScaffold

fn view(&self) -> RenderNode

fn on_event(&mut self, event: &Event) -> EventResult

fn debug_name(&self) -> &'static str

Human-readable widget type name for the devtools tree inspector.

impl LayoutItem for SurfaceScaffold

fn layout_node(&self) -> NodeId

fn pointer_opaque(&self) -> bool

Whether this widget stands in front of whatever its siblings drew underneath it, for a pointer event its parent is hit-testing.