feat: add schematic sheet selector to switch between sheets

[MustafaMulla29]

Adds the ability to view independent schematic sheets in the schematic viewer. Multi-sheet circuits (using <schematicsheet />) previously rendered all sheets merged together with no way to switch between them.

A "Sheet:" dropdown now appears in the top-left toolbar whenever a circuit has more than one schematic sheet. Selecting a sheet renders only that sheet, using circuit-to-svg's built-in schematicSheetId option (no manual DOM filtering).

Changes

• SchematicSheetSelector (new) — a standalone Radix DropdownMenu (@radix-ui/react-dropdown-menu, same lib as the 3d-viewer) showing the active sheet with a check on the selection and an animated chevron. Only renders when there are 2+ sheets; width fits the longest name (with ellipsis + tooltip for very long names).
• SchematicViewer — derives the sheet list from the circuit JSON, tracks the active sheet, passes schematicSheetId to convertCircuitJsonToSchematicSvg, and filters the clickable component/port overlays to the active sheet so they line up with what's drawn. Single/no-sheet circuits are unchanged. New optional onSchematicSheetChange callback.
• Sheet persistence — the selected sheet is saved to localStorage and restored on reload (falls back to the first sheet if it no longer exists). Adds getStoredString/setStoredString helpers.
• ViewMenu — migrated the 3-dots menu to Radix DropdownMenu for proper dismiss/keyboard/positioning; ViewMenuIcon is now the Radix trigger (<button>, ref-as-prop, no forwardRef).
• schematic-sheet.ts (new) — shared SchematicSheetInfo type + getSchematicSheetLabel helper (display_name ?? name ?? "Sheet N").
• example23-multiple-schematic-sheets.fixture.tsx (new) — LED driver on Sheet 1, RC filter on Sheet 2.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
schematic-viewer	Ready	Preview, Comment	Jun 30, 2026 3:09pm

[imrishabh18]

Get approval from Seve

[seveibar]

Not clickable on mobile!

[tscircuitbot]

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PR Rating: ⭐⭐⭐
Impact: Major

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