Struct PopupRenderState 

pub struct PopupRenderState {
    pub buffer_id: Option<BufferId>,
    pub scroll: u32,
    pub placement: PopupPlacement,
    pub anchor: Option<Position>,
    pub doc_scroll_at_anchor: u32,
}

Help / hover / signature popup’s render-side projection.

Phase 5.8.AF.5 / Slice 3c.final.B (group 3): populated. buffer_id mirrors Editor::popup_buffer (the active popup’s id, None when no popup is open). placement echoes Editor::popup_placement. Help content + syntax / link styling are carried by the registry Document at buffer_id and its live cells-worker DisplayMatrix (grammar spans + the ExtraHighlights link overlay) — both renderers source the popup’s CONTENT, TITLE, and line-count from the registry Document directly (PU.2 / PU.1b-4b), so no popup-side HelpBuffer snapshot is published.

Fields

buffer_id: Option<BufferId>

scroll: u32

PU.1b-4b: the popup’s State-A view scroll (= Editor::popup_scroll). Genuine popup-only view state — NOT in the registry Document (the Document carries no per-popup scroll), so it is published here for both renderers’ State-A (popup-shown-but-not-focused) anchor. State B (focused) reads the live active_document.scroll instead.

placement: PopupPlacement

anchor: Option<Position>

2026-05-22 popup-anchor: cursor position snapshotted at popup-open time. CursorAnchored renderers read this so the popup stays pinned to the symbol it was invoked from instead of re-deriving from the active cursor every frame (which made the popup follow motions). Both TUI and GPUI peers consume the same field from the published RS.

doc_scroll_at_anchor: u32

Document scroll at popup-open time. Used by CursorAnchored renderers to convert anchor.line (document coordinates) into a screen row without being confused by State B, where active_document.scroll reflects the POPUP’s scroll rather than the document’s. Fixed once at open; survives the State A → B transition.

Implementations

impl PopupRenderState

pub fn is_open(&self) -> bool

Convenience: true while a popup is open. Equivalent to buffer_id.is_some() but reads cleaner at call sites that previously gated on app.editor.popup_buffer.is_some().

Trait Implementations

impl Clone for PopupRenderState

fn clone(&self) -> PopupRenderState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PopupRenderState

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

Formats the value using the given formatter.

impl Default for PopupRenderState

fn default() -> PopupRenderState

Returns the “default value” for a type.