mirror of
https://github.com/heygen-com/hyperframes.git
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Miguel Ángel
58a370939c
* feat(studio): html-backed motion panel — persist GSAP motion to element attributes Re-architects the motion panel to store GSAP motion data as a JSON data attribute (data-hf-studio-motion) on each element instead of a .hyperframes/studio-motion.json sidecar file. Follows the same pattern as position/resize/rotation edits: write to DOM, build patches, persist to HTML source via commitPositionPatchToHtml. Render pipeline: the studioPositionSeekReapplyRuntime now queries [data-hf-studio-motion] elements after each seek, parses their JSON, builds a GSAP timeline, and seeks it to the current frame time. Studio preview: motion reapply is integrated into the manual edits seek hook (reapplyPositionEditsAfterSeek). useManifestPersistence is slimmed to only handle save queue and seek hooks. * fix(studio): address PR review — html-escape attrs, cache timeline, migrate sidecar, add tests Blocker: JSON attribute values are now HTML-entity-escaped before being written into source HTML. Read-back unescapes automatically. Perf: motion timeline is cached between seeks at render — only rebuilt when the concatenated JSON key changes, not on every frame. Migration: on mount, empties legacy .hyperframes/studio-motion.json so the legacy render script no-ops. Tests: 46 new tests for motion read/write/clear round-trips, JSON attribute escaping, and source patcher entity handling. Nits: removed unused activeCompositionPath param; tightened htmlCompiler attribute substring check. * fix(studio): fix seek after code edit, improve scrub performance, add click-to-source Three issues addressed: 1. **Seek breaks after code edit**: During crossfade refreshes the retiring Player's cleanup unconditionally nulled `iframeRef.current`, clobbering the reference the new Player had already assigned. Guard the cleanup to only clear the ref when it still points to the retiring Player's own iframe. 2. **Scrubber/timeline drag jank**: Every pointermove during a drag called the full seek pipeline (adapter.seek + setCurrentTime + React re-render cascade). RAF-throttle the expensive onSeek call during drags while keeping slider and playhead visuals updated on every pointer event for instant feedback. 3. **Click-to-source**: Clicking an element in the preview now switches to the Code tab, opens the element's source file, and scrolls the editor to the element's opening tag. Uses the existing `findTagByTarget` source patcher to locate the element by id/selector in the HTML source. * fix(studio): address PR review — gate click-to-source, fix fetch race, guard refs - Gate click-to-source on Alt/Option+click so it doesn't steal the Code tab on every preview click, conflicting with select-to-inspect workflow - Fix fetch race in openSourceForSelection: AbortController cancels the previous in-flight fetch, monotonic request ID prevents stale responses from applying the wrong file/offset - Guard the callback-ref branch in Player cleanup (no-op — can't read back from a callback ref to check identity, and the path is unreachable today since the ref is always a MutableRefObject) - Import SidebarTab type instead of duplicating the literal inline
@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