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Viewer: Dont show a blank title page for books with not titlepage

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Kovid Goyal 2019-09-17 18:18:07 +05:30
parent eb7ee8b9ef
commit 2d9c0c709d
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1 changed files with 52 additions and 28 deletions
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34
src/calibre/srv/render_book.py
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@ -19,6 +19,7 @@ from css_parser.css import CSSRule
from calibre import force_unicode, prepare_string_for_xml
from calibre.ebooks import parse_css_length
from calibre.ebooks.css_transform_rules import StyleDeclaration
from calibre.ebooks.metadata import authors_to_string
from calibre.ebooks.oeb.base import (
EPUB_NS, OEB_DOCS, OEB_STYLES, OPF, XHTML, XHTML_NS, XLINK, XPath, rewrite_links,
urlunquote
@ -175,10 +176,11 @@ class Container(ContainerBase):
tweak_mode = True
def __init__(self, path_to_ebook, tdir, log=None, book_hash=None, save_bookmark_data=False):
def __init__(self, path_to_ebook, tdir, log=None, book_hash=None, save_bookmark_data=False, book_metadata=None):
log = log or default_log
book_fmt, opfpath, input_fmt = extract_book(path_to_ebook, tdir, log=log)
ContainerBase.__init__(self, tdir, opfpath, log)
self.book_metadata = book_metadata
if save_bookmark_data:
bm_file = 'META-INF/calibre_bookmarks.txt'
self.bookmark_data = None
@ -263,17 +265,21 @@ class Container(ContainerBase):
}
</style></head><body><img src="%s"/></body></html>
'''
blank = {'q': False}
if input_fmt == 'epub':
def cover_path(action, data):
if action == 'write_image':
data.write(BLANK_JPEG)
return set_epub_cover(self, cover_path, (lambda *a: None), options={'template':templ})
blank['q'] = True
raster_cover_name, titlepage_name = set_epub_cover(self, cover_path, (lambda *a: None), options={'template':templ})
else:
raster_cover_name = find_cover_image(self, strict=True)
if raster_cover_name is None:
item = self.generate_item(name='cover.jpeg', id_prefix='cover')
raster_cover_name = self.href_to_name(item.get('href'), self.opf_name)
with self.open(raster_cover_name, 'wb') as dest:
dest.write(BLANK_JPEG)
blank['q'] = True
item = self.generate_item(name='titlepage.html', id_prefix='titlepage')
titlepage_name = self.href_to_name(item.get('href'), self.opf_name)
raw = templ % prepare_string_for_xml(self.name_to_href(raster_cover_name, titlepage_name), True)
@ -283,6 +289,22 @@ class Container(ContainerBase):
ref = spine.makeelement(OPF('itemref'), idref=item.get('id'))
self.insert_into_xml(spine, ref, index=0)
self.dirty(self.opf_name)
if blank['q'] and self.book_metadata is not None:
authors = authors_to_string(self.book_metadata.authors)
title = self.book_metadata.title
with self.open(titlepage_name, 'wb') as f:
f.write('''
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head><meta charset="utf-8"/></head>
<body>
<div style="position: fixed; top: 50%; width: 100vw; transform: translateY(-50%)">
<h1 style="text-align: center; margin: auto">{title}</h1>
<p>&nbsp;</p>
<h3 style="text-align: center; margin: auto; font-style: italic">{authors}</h3>
</div>
</body>
</html>
'''.format(title=title, authors=authors).encode('utf-8'))
return raster_cover_name, titlepage_name
def transform_css(self):
@ -592,13 +614,15 @@ def get_stored_annotations(container):
def render(pathtoebook, output_dir, book_hash=None, serialize_metadata=False, extract_annotations=False):
container = Container(pathtoebook, output_dir, book_hash=book_hash, save_bookmark_data=extract_annotations)
mi = None
if serialize_metadata:
from calibre.ebooks.metadata.meta import get_metadata
from calibre.utils.serialize import json_dumps
from calibre.ebooks.metadata.book.serialize import metadata_as_dict
with lopen(pathtoebook, 'rb') as f:
mi = get_metadata(f, os.path.splitext(pathtoebook)[1][1:].lower())
container = Container(pathtoebook, output_dir, book_hash=book_hash, save_bookmark_data=extract_annotations, book_metadata=mi)
if serialize_metadata:
from calibre.utils.serialize import json_dumps
from calibre.ebooks.metadata.book.serialize import metadata_as_dict
d = metadata_as_dict(mi)
serialize_datetimes(d), serialize_datetimes(d.get('user_metadata', {}))
cdata = d.pop('cover_data', None)