Struct PanelRegistry 

pub struct PanelRegistry { /* private fields */ }

Global registry of panel builders, keyed by panel name, used to reconstruct a panel view from persisted PanelState/PanelInfo data.

A builder returns an Arc<dyn PanelView>, not a bare AnyView. An earlier revision of this module returned AnyView so that a builder would not have to depend on the panel traits, on the reasoning that “a caller that needs a richer handle downcasts or wraps the AnyView itself”. DockArea::load is that caller, and it cannot: downcasting needs the concrete type, which the registry is precisely the mechanism for not knowing. Without a PanelView a restored panel could not be asked for its dump, so every registered panel’s own persisted payload would be dropped on the first save after a load.

Building a panel that was never registered returns None rather than a placeholder view: rendering an “invalid panel” placeholder is presentation behavior that belongs above this seam, not inside gpui-base. DockArea substitutes a draw-nothing placeholder that carries the original PanelState forward, so an unknown panel survives a round trip.

Implementations

impl PanelRegistry

pub fn new() -> Self

pub fn global(cx: &App) -> &Self

pub fn global_mut(cx: &mut App) -> &mut Self

pub fn build_panel( panel_name: &str, context: PanelBuildContext<'_>, window: &mut Window, cx: &mut App, ) -> Option<Arc<dyn PanelView>>

Build a panel by name.

Returns None if no builder is registered for panel_name.

Trait Implementations

impl Default for PanelRegistry

fn default() -> Self

Returns the “default value” for a type.

impl Global for PanelRegistry