Struct WidgetPanelState 

pub struct WidgetPanelState {
    pub buffer_id: BufferId,
    pub spec: WidgetSpec,
    pub hits: Vec<HitArea>,
    pub instance_states: HashMap<String, WidgetInstanceState>,
    pub focus_key: String,
    pub tabbable: Vec<String>,
}

Per-panel state retained between renders. The reconciler will use the previous spec to compute the minimum mutation when a future UpdateWidgetPanel arrives.

Fields

buffer_id: BufferId

The virtual buffer this panel renders into.

spec: WidgetSpec

The currently-mounted spec.

hits: Vec<HitArea>

Click rectangles for the rendered output, in declaration order. Hit-test scans linearly — the small N (one per interactive widget per panel) doesn’t justify a spatial index.

instance_states: HashMap<String, WidgetInstanceState>

Widget instance state by widget key. Survives re-renders — see WidgetInstanceState for what’s stored.

focus_key: String

Currently-focused widget key within this panel. Empty when the panel has no focusable widgets, or before the first render. Maintained by the renderer (clamps to a valid tabbable key on every render) and by widget_focus_advance (cycles through tabbables on Tab / Shift+Tab).

tabbable: Vec<String>

Tabbable widget keys collected from the most recent render, in declaration order. The Tab-cycle command finds the current focus_key’s position in this list and advances by the requested delta (with wraparound).

Trait Implementations

impl Clone for WidgetPanelState

fn clone(&self) -> WidgetPanelState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WidgetPanelState

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

Formats the value using the given formatter.