mirror of
https://github.com/heygen-com/hyperframes.git
synced 2026-11-06 22:57:12 +00:00
Miguel Ángel
69fea290a9
* fix(studio): a ruler label that slides under the track header is covered once the scroll settles
The track-header corner of the ruler is sticky and opaque and tick labels scroll natively under it, so the ruler could rest on a fragment ('0:05', '0'). A single mask subscribes to the viewport scroll with useSyncExternalStore, finds the one label the header slices, and covers it when the scroll settles. Moving it live on every tick crossing cost 2-3x the viewport gate's budget on a large unvirtualized timeline, so mid-scroll a fragment can still show.
* fix(studio): the ruler mask never stays off after its scroll listener is swapped
Unsubscribing mid-scroll left scrollingRef true, so the mask stayed hidden until the next scroll. Reset it with the settle timer.
@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 19, Zustand 4/5 (state management; development uses Zustand 5)
- CodeMirror 6 (editor)
- Tailwind CSS (styling)
- Vite (bundler)
- Phosphor Icons
Documentation
Full documentation: hyperframes.heygen.com/packages/studio
Related packages
@hyperframes/core— types and parsers used by the editorhyperframes— CLI that serves the studio viahyperframes preview