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Kovid Goyal 2026-01-10 11:51:32 +05:30
parent 03972f310f
commit 5f0d48c5fd
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1 changed files with 8 additions and 11 deletions
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19
src/calibre/ebooks/metadata/opf3.py
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@ -976,19 +976,16 @@ def read_raster_cover(root, prefixes, refines):
if href:
return href
for item_id in XPath('./opf:metadata/opf:meta[@name="cover"]/@content')(root):
for item in XPath('./opf:manifest/opf:item[@id and @href and @media-type]')(root):
if item.get('id') == item_id:
href = get_href(item)
if href:
return href
id_map = {item.get('id', ''):item for item in XPath('./opf:manifest/opf:item[@id and @href and @media-type]')(root)}
for item_id in XPath('./opf:metadata/opf:meta[@name="cover"]/@content')(root):
if (item := id_map.get(item_id)) and (href := get_href(item)):
return href
cover_image_types = ('image/jpeg', 'image/webp', 'image/png')
for item_id in XPath('./opf:spine/opf:itemref/@idref')(root):
for item in XPath('./opf:manifest/opf:item[@id and @href and @media-type]')(root):
if item.get('id') == item_id:
if item.get('media-type') in ('image/jpeg', 'image/webp'):
if href := get_href(item):
return href
if (item := id_map.get(item_id)) and item.get('media-type') in cover_image_types and (href := get_href(item)):
return href
break