Struct SurfaceManager 

pub struct SurfaceManager { /* private fields */ }

One window’s stateful surface driver.

Implementations

impl SurfaceManager

pub fn new(width: f64) -> Self

New manager for a container of width logical px, default policy.

pub fn with_policy(width: f64, policy: Policy) -> Self

pub fn graph(&self) -> &SurfaceGraph

pub fn size_class(&self) -> SizeClass

pub fn width(&self) -> f64

pub fn set_width(&mut self, width: f64) -> bool

Update the container width. Returns true if the SizeClass changed after hysteresis, i.e. when the skin must re-derive its layout.

pub fn set_sidebar_width(&mut self, width: f64) -> bool

Report the platform’s live sidebar allocation. Mobile/custom hosts use zero; desktop shells update this during resize and collapse.

pub fn open(&mut self, request: Surface) -> OpenOutcome

Open (or replace by id) a surface through the arbiter at the current size. Always leaves the graph valid; returns the structured decision.

pub fn close(&mut self, id: &str) -> Vec<SurfaceId>

Close a surface; returns the ids actually removed (target + cascades).

pub fn set_active_main(&mut self, id: &str) -> bool

pub fn set_focus(&mut self, id: &str) -> bool

pub fn show(&mut self, id: &str) -> bool

pub fn hide(&mut self, id: &str) -> bool

pub fn derive(&self) -> DerivedLayout

Derive the platform-agnostic layout output at the current size.

pub fn presentation_plan(&self) -> LayoutPresentationPlan

Build the stable, skin-bindable LayoutPresentationPlan at the current size — the renderable contract platforms reconcile against. Slot admission respects both the size-class ceiling and the physical fit at the current width (§3.3).

Trait Implementations

impl Clone for SurfaceManager

fn clone(&self) -> SurfaceManager

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SurfaceManager

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.