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https://github.com/heygen-com/hyperframes.git
synced 2026-09-03 04:38:33 +00:00
Miguel Ángel
0d7d38849c
## What Align Studio preview font handling with final render, and harden the transform hook against failures. ## Why Preview and render use different font handling. This bug changes text width and makes text layout look different between preview and final render. ## How - Add a `transformPreviewHtml` hook in `StudioApiAdapter` that adapters can implement to post-process preview HTML before Studio augments it - Use it in both the Vite adapter and the CLI studio server to inject the same deterministic `@font-face` rules that render uses - Wrap the hook in a try/catch so a failing transform (e.g. network error during Google Fonts fetch) degrades gracefully — the preview still loads with the original HTML ## Edge cases covered | Path | Covered | |------|---------| | Bundled HTML (adapter returns string) | ✓ | | Bundle returns null → reads index.html from disk | ✓ | | Bundle throws → catch-block fallback reads index.html | ✓ | | Sub-composition preview | ✓ | | Transform hook throws → graceful fallback to original HTML | ✓ | ## Test plan - [x] Unit tests added for all five paths above - [x] Manual testing performed Closes #797
@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