Files
hyperframes/packages/studio
Miguel Ángel c3f70c91db fix(studio): restore saved positions on page refresh (#801)
* fix(studio): restore saved positions on page refresh

studio-manual-edits.json was correctly persisted to disk but never read back
into memory on bootstrap. On every page refresh, studioManualEditManifestRef
started empty, so handleLoad applied an empty manifest and all saved
positions/sizes/rotations were silently discarded.

applyStudioManualEditsToPreview now reads from disk whenever the in-memory
manifest is empty. The existing readRevision guard prevents overwriting an
in-flight optimistic edit if a position change races with the disk read.

* fix(studio): close delete-all race and apply same bootstrap to motion manifest

Two follow-up fixes from review:

1. Replace edits.length === 0 with an explicit manifestBootstrappedRef boolean.
   The old condition was true in two distinct states: never-bootstrapped AND
   user-deleted-all-edits. Because the delete-all disk write is async-queued,
   there was a window where applyStudioManualEditsToPreview could read stale
   disk content and resurrect just-deleted positions. The boolean flag is set
   on the first apply and reset on project switch, cleanly separating the two
   states.

2. applyStudioMotionToPreview had the identical bug: GSAP motion edits were
   also lost on page refresh. Applied the same motionBootstrappedRef pattern.
2026-05-13 22:39:30 +02:00
..
2026-05-13 00:49:09 -07:00
2026-03-21 22:43:56 -07:00

@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