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feat: PDF sources: read, take notes and cards from pages, deadlines
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PDFs live in a studyset's new Files tab: uploaded from Add material
(a file the studyset holds already asks first), each row with its
pages, cards, notes and size, how far it is read and its reading
deadline; renamed, given a deadline (a page or a chapter by a day),
marked as read, started afresh, deleted with a moment to undo.

The reader (/pdfs/:id) opens where reading left off: on wide windows
a rail of tools (search, fit, zoom, fullscreen), a page counter with
the chapter, and a sidebar; on phones a top bar, a page scrubber and
a sheet. The sidebar holds the PDF's flashcards, by page or chapter,
made from selected text or written there, each tied to its page and
tagged with its chapter; and the page's note, an ordinary note tied
to the page. Screenshots of a region become images that know their
page. Cards and screenshots lead back to their page; reading on past
a chapter with cards suggests studying it. Home shows the deadlines
running and to come, and a timeline of them.

Server: pdf_source rows (content in the payload, last writer wins)
and an append-only pdf_reading log, the furthest page derived from
it so devices never conflict. Files up to 50 MB for PDFs (20 MB for
others; a larger file that isn't a PDF is deleted once stored). A
deleted PDF takes its file's asset row along unless another PDF has
the same file. Card payload 4 and note payload 2 keep the page.

The reader draws with pdfrx (PDFium) behind PdfEngine in
Dependencies; widget tests use a fake, and
integration_test/pdf_engine_test.dart checks the real engine on a
device or the desktop.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
This commit is contained in:
Tizian 「ティツィアーン」 2026-10-03 14:40:08 +02:00
commit b96db731c1
Signed by: raisondetredev
GPG key ID: 07F6FCF405488B64
1 changed files with 34926 additions and 58 deletions
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14
halkyon_learn_flutter/test/feature/card/data/card_payload_test.dart
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@ -125,6 +125,20 @@ void main() {
expect(content, CardContent(front: text('猫'), back: text('cat')));
});
test('a card tied to a page of a PDF keeps it, whatever its type', () {
final content = CardContent(
front: text('猫'),
back: text('cat'),
source: (pdfId: 'grammar-pdf', page: 12),
);
final decoded = decodeCardPayload(encodeCardPayload(content));
expect(decoded, content);
expect(decoded.source, (pdfId: 'grammar-pdf', page: 12));
expect(content.normalized.source, (pdfId: 'grammar-pdf', page: 12));
});
test('refuses a type this app does not know', () {
expect(
() => decodeCardPayload(