Current File : //usr/lib/calibre/calibre/ebooks/oeb/transforms/guide.py
#!/usr/bin/env python3
__license__ = 'GPL v3'
__copyright__ = '2009, Kovid Goyal <kovid@kovidgoyal.net>'
__docformat__ = 'restructuredtext en'
class Clean:
'''Clean up guide, leaving only known values '''
def __call__(self, oeb, opts):
self.oeb, self.log, self.opts = oeb, oeb.log, opts
if 'cover' not in self.oeb.guide:
covers = []
for x in ('other.ms-coverimage-standard', 'coverimagestandard',
'other.ms-titleimage-standard', 'other.ms-titleimage',
'other.ms-coverimage', 'other.ms-thumbimage-standard',
'other.ms-thumbimage', 'thumbimagestandard'):
if x in self.oeb.guide:
href = self.oeb.guide[x].href
try:
item = self.oeb.manifest.hrefs[href]
except KeyError:
continue
else:
covers.append([self.oeb.guide[x], len(item.data)])
covers.sort(key=lambda x: x[1], reverse=True)
if covers:
ref = covers[0][0]
if len(covers) > 1:
self.log('Choosing %s:%s as the cover'%(ref.type, ref.href))
ref.type = 'cover'
self.oeb.guide.refs['cover'] = ref
if ('start' in self.oeb.guide and 'text' not in self.oeb.guide):
# Prefer text to start as per the OPF 2.0 spec
x = self.oeb.guide['start']
self.oeb.guide.add('text', x.title, x.href)
self.oeb.guide.remove('start')
for x in list(self.oeb.guide):
if x.lower() not in {
'cover', 'titlepage', 'masthead', 'toc', 'title-page',
'copyright-page', 'text', 'index', 'glossary',
'acknowledgements', 'bibliography', 'colophon',
'copyright-page', 'dedication', 'epigraph', 'foreword',
'loi', 'lot', 'notes', 'preface'}:
item = self.oeb.guide[x]
if item.title and item.title.lower() == 'start':
continue
self.oeb.guide.remove(x)
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