Commit Graph
2 Commits
Author SHA1 Message Date
CC WorkerandClaude Sonnet 4.6 8e8a345e61 fix: incremental PDF page rendering for exam setup backdrop
app-ci-deploy / test-build-deploy (push) Has been cancelled
Rendering a 36-page AQA exam PDF sequentially created 36 large canvas
elements, causing memory pressure and keeping pdfStatus='loading' for
60–120s in headless Chrome. Two changes:

1. pdfLoader.ts: reuse a single canvas (reduces peak memory from ~120MB
   to ~4MB) and fire onPageReady callback after each page so callers can
   stream pages to the canvas as they render.

2. ExamTemplateSetupPage.tsx: use the callback to add each PDF page
   shape to the tldraw canvas the moment it renders, making the first
   page visible within a few seconds rather than after all pages load.

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
2026-06-07 03:35:09 +00:00
kcar aa2f35e467 feat(exam): render template PDFs behind setup canvas 2026-06-07 03:56:09 +01:00