mirror of
https://github.com/heygen-com/hyperframes.git
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Miguel Ángel
e25bcf989a
- Split pan clamping: clampPreviewPan (drag/wheel-pan) stays narrow (Math.max(0,...) — content pins to center when smaller than viewport). New clampPreviewPanForZoom (Math.abs) gives the wide range only to cursor-anchored zoom, preventing middle-mouse drag from pushing content off-screen at low zoom levels. - Pin transform-origin invariant: comment on the stage div noting that resolvePreviewWheelZoom cursor math depends on center-center pivot. New test verifies a non-center cursor keeps the same content-space point fixed across a zoom step. - Remove dead Math.abs(oldScale) > 1e-6 guard — oldScale >= 0.25 always (clampPreviewZoomPercent floors at MIN_PREVIEW_ZOOM_PERCENT = 25). - Skip setSettledZoom re-render when the value didn't change — uses a functional updater that returns the previous state object when all three fields match, avoiding a React re-render cascade through Player.
@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
Related packages
@hyperframes/core— types and parsers used by the editorhyperframes— CLI that serves the studio viahyperframes preview