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Bücherliste: Seitenzahl neben dem Lesefortschritt
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PDFs liefern die echte Seitenzahl, bei EPUBs wird sie aus der Zeichenzahl
geschätzt (1800 Zeichen je Seite). Gespeichert in den verschlüsselten Metadaten
beim Öffnen des Buchs.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
Marwin Schulz 2026-10-07 08:50:07 +02:00
parent 3d659fc809
commit aa4cf23b58
2 changed files with 15 additions and 5 deletions
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18
static/js/app.js
View file

@ -1991,6 +1991,8 @@ let readerScrollSaveTimer = null;
let _resizeObserver = null;
let _currentPositionAnchor = '';
let _currentBookCharCount = 0;
// Rough characters per printed book page, used to estimate a real page count for EPUBs.
const CHARS_PER_BOOK_PAGE = 1800;
const bookMetaCache = {}; // id → {title, author, type}
// Reading-position percentages (the progress readout, annotation "% im Buch"
@ -2493,8 +2495,8 @@ async function loadBookList() {
try {
const metaBuf = await decryptBytes(key, b.meta_iv, b.meta_ct);
const meta = JSON.parse(new TextDecoder().decode(metaBuf));
bookMetaCache[b.id] = {title: meta.title || '?', author: meta.author || '', type: meta.type || 'epub', filename: meta.filename || '', folder: meta.folder || '', isbn: meta.isbn || '', shelfTag: meta.shelfTag || ''};
decrypted.push({id: b.id, title: meta.title || '?', author: meta.author || '', type: meta.type || 'epub', folder: meta.folder || '', isbn: meta.isbn || '', shelfTag: meta.shelfTag || '', scroll_fraction: b.scroll_fraction, position_anchor: b.position_anchor || '', uploaded_at: b.uploaded_at, last_read: b.last_read || null, keyOk: true, is_read: !!b.is_read, has_highlights: !!b.has_highlights});
bookMetaCache[b.id] = {title: meta.title || '?', author: meta.author || '', type: meta.type || 'epub', filename: meta.filename || '', folder: meta.folder || '', isbn: meta.isbn || '', shelfTag: meta.shelfTag || '', pages: meta.pages || 0};
decrypted.push({id: b.id, title: meta.title || '?', author: meta.author || '', type: meta.type || 'epub', folder: meta.folder || '', isbn: meta.isbn || '', shelfTag: meta.shelfTag || '', pages: meta.pages || 0, scroll_fraction: b.scroll_fraction, position_anchor: b.position_anchor || '', uploaded_at: b.uploaded_at, last_read: b.last_read || null, keyOk: true, is_read: !!b.is_read, has_highlights: !!b.has_highlights});
} catch (e) {
bookMetaCache[b.id] = {title: `Buch #${b.id}`, author: '', type: 'epub', filename: '', folder: '', isbn: '', shelfTag: ''};
decrypted.push({id: b.id, title: `Buch #${b.id}`, author: '', type: 'epub', folder: '', isbn: '', shelfTag: '', scroll_fraction: b.scroll_fraction, position_anchor: b.position_anchor || '', uploaded_at: b.uploaded_at, last_read: b.last_read || null, keyOk: false, is_read: !!b.is_read, has_highlights: !!b.has_highlights});
@ -2536,7 +2538,7 @@ async function loadBookList() {
if (b.last_read) return 1;
return (b.uploaded_at || '').localeCompare(a.uploaded_at || '');
});
for (const b of cachedBooks) bookMetaCache[b.id] = {title: b.title, author: b.author, type: b.type || 'epub', filename: b.filename || '', folder: b.folder || '', isbn: b.isbn || '', shelfTag: b.shelfTag || ''};
for (const b of cachedBooks) bookMetaCache[b.id] = {title: b.title, author: b.author, type: b.type || 'epub', filename: b.filename || '', folder: b.folder || '', isbn: b.isbn || '', shelfTag: b.shelfTag || '', pages: b.pages || 0};
const uploadArea = $('book-upload-area');
if (uploadArea) uploadArea.style.display = 'none';
renderBookList(cachedBooks);
@ -2698,7 +2700,7 @@ function _renderBookItemHtml(b) {
<strong class="book-title">${escapeHtml(b.title)}${keyWarning}${b.is_read ? ' <span class="muted book-read-badge">✓ gelesen</span>' : ''}</strong>
<span class="muted book-author">${escapeHtml(b.author)}</span>
<span class="book-item-meta-row">
${pct > 0 ? `<span class="muted book-progress">${pct} % gelesen</span>` : ''}
${pct > 0 ? `<span class="muted book-progress">${pct} % gelesen${b.pages ? ` (≈ ${Math.max(1, Math.round(b.pages * pct / 100))} von ${b.pages} Seiten)` : ''}</span>` : (b.pages ? `<span class="muted book-progress">ca. ${b.pages} Seiten</span>` : '')}
${b.shelfTag ? `<span class="book-shelf-badge" title="Regal-Kategorie">${escapeHtml(b.shelfTag)}</span>` : ''}
</span>
</div>
@ -2825,6 +2827,7 @@ async function _updateBookMeta(bookId, overrides) {
isbn: cached.isbn || book.isbn || '',
folder: cached.folder || book.folder || '',
shelfTag: cached.shelfTag || book.shelfTag || '',
pages: cached.pages || book.pages || 0,
...overrides,
};
const key = await getOrCreateEncKey();
@ -3767,6 +3770,13 @@ async function _openBookOnce(bookId) {
currentBookId = bookId;
// Remember the book's real (PDF) or estimated (EPUB) page count in its encrypted meta so
// the book list can show it; rewritten only when it changed.
const bookPages = isPdfBook ? numPages : Math.max(1, Math.round(_currentBookCharCount / CHARS_PER_BOOK_PAGE));
if (bookPages > 0 && cachedMeta.pages !== bookPages) {
_updateBookMeta(bookId, {pages: bookPages}).catch(() => {});
}
// Load bookmarks and highlights
await Promise.all([
loadBookmarks(bookId),

2
static/js/sw.js
View file

@ -2,7 +2,7 @@
* diora service worker — caches the app shell for offline use.
*/
const CACHE = 'diora-v95';
const CACHE = 'diora-v96';
const SHELL = [
'/static/css/app.css',
'/static/js/app.js',