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Vance Ingalls
67696cd8de
The Slideshow tab rendered unconditionally, showing the branching editor for any composition regardless of whether it was actually a slideshow — a plain video comp offered a tab with nothing meaningful to edit. Gate it on the composition carrying the slideshow JSON island (<script type="application/hyperframes-slideshow+json">), the same definitive marker the CLI's `present` command already requires (it refuses to run without one). Presence-only, not full manifest validation, so a malformed island still surfaces the tab rather than disappearing entirely. Also bounce rightPanelTab off "slideshow" to "renders" if the active composition stops being a slideshow while that tab is open (e.g. switching files), since its button would otherwise vanish with no way back to it. Extracted the gating + scene-list derivation into useSlideshowTabState to keep StudioRightPanel.tsx under the 600-LOC gate.
@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