Files
hyperframes/packages/studio
Miguel Angel Simon Sierra bc5fc410ee feat(studio): timeline layer UI — context headers, audio lanes, drop affordances
L4 polish for the stacking-layer timeline:
- Sub-composition layers group under a slim "Inside: <comp>" header with a green
  accent, so it reads that restacking there is scoped to that context.
- Audio clips render in a distinct bottom lane: separator border, muted row bg,
  music glyph in the gutter, beat strip — clearly not part of the z-order stack.
- During a vertical drag, a drop affordance shows join-vs-insert: an "onto"
  target highlights the row (join that layer / same z); "between"/"above"/
  "below" shows an insertion line (new layer here).

New pure helper timelineDropIndicator.ts (+ test) maps placement -> indicator;
row-group rendering extracted into TimelineLayerGroupHeader / TimelineLayerGutter
/ TimelineDropInsertionLine / TimelineDragGhost to keep files under the 600 cap.
2026-07-08 23:46:26 -04:00
..
2026-07-08 16:21:05 -07:00

@hyperframes/studio

Browser-based composition editor UI for Hyperframes. Provides a visual timeline, code editor, and live preview for building video compositions.

Install

npm install @hyperframes/studio

What it does

The studio is a React application with:

  • Visual timeline — drag, resize, and arrange elements on tracks
  • Code editor — edit HTML and GSAP scripts with CodeMirror (syntax highlighting, autocomplete)
  • Live preview — see changes in real time as you edit
  • Composition inspector — view and modify element properties

Development

The studio is embedded in the hyperframes preview command. To develop the studio UI itself:

cd packages/studio
bun run dev        # Start Vite dev server
bun run build      # Build for production
bun run typecheck  # Type-check

Tech stack

  • React 18/19, Zustand (state management)
  • CodeMirror 6 (editor)
  • Tailwind CSS (styling)
  • Vite (bundler)
  • Phosphor Icons

Documentation

Full documentation: hyperframes.heygen.com/packages/studio