feat: apercu PDF via PDF.js (rendu portable, build legacy)

Remplace l'<iframe> (lecteur PDF natif du moteur) par un rendu PDF.js
sur <canvas>, une page par canvas empilee et scrollable. Rendu
identique partout (Qt WebEngine, WebView2, navigateur), worker bundle
localement par Vite -> fonctionne hors-ligne.

Utilise le build *legacy* de pdfjs-dist : il embarque les polyfills
requis par les Chromium embarques (Qt WebEngine, WebView2), plus
anciens que Chrome. Le build par defaut appelle
`Map.prototype.getOrInsertComputed` (proposition JS recente) sans
polyfill, ce qui cassait silencieusement le rendu dans la fenetre
bureau. Le catch logue desormais l'erreur au lieu de l'avaler.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
2026-07-19 17:22:20 +02:00
parent a90d1c4f64
commit 2d8b2ff42f
3 changed files with 396 additions and 38 deletions

View File

@@ -9,6 +9,7 @@
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