mirror of
https://github.com/gryf/ebook-converter.git
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75 lines
2.6 KiB
Python
75 lines
2.6 KiB
Python
import urllib.parse
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from ebook_converter.ebooks.oeb import base
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from ebook_converter.ebooks.oeb.base import XPath, xml2text, urlnormalize
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JACKET_XPATH = '//h:meta[@name="calibre-content" and @content="jacket"]'
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class RemoveFirstImage:
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def remove_images(self, item, limit=1):
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path = XPath('//h:img[@src]')
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removed = 0
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for img in path(item.data):
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if removed >= limit:
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break
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href = item.abshref(img.get('src'))
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image = self.oeb.manifest.hrefs.get(href)
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if image is None:
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href = urlnormalize(href)
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image = self.oeb.manifest.hrefs.get(href)
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if image is not None:
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self.oeb.manifest.remove(image)
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self.oeb.guide.remove_by_href(href)
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img.getparent().remove(img)
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removed += 1
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return removed
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def remove_first_image(self):
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deleted_item = None
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for item in self.oeb.spine:
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if XPath(JACKET_XPATH)(item.data):
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continue
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removed = self.remove_images(item)
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if removed > 0:
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self.log.info('Removed first image')
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body = XPath('//h:body')(item.data)
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if body:
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raw = xml2text(body[0]).strip()
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imgs = XPath('//h:img|//svg:svg')(item.data)
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if not raw and not imgs:
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self.log.info('Removing %s as it has no content',
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item.href)
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self.oeb.manifest.remove(item)
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deleted_item = item
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break
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else:
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self.log.warning('Could not find first image to remove')
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if deleted_item is not None:
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for item in list(self.oeb.toc):
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href = urllib.parse.urldefrag(item.href)[0]
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if href == deleted_item.href:
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self.oeb.toc.remove(item)
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self.oeb.guide.remove_by_href(deleted_item.href)
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def __call__(self, oeb, opts, metadata):
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"""
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Add metadata in jacket.xhtml if specified in opts
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If not specified, remove previous jacket instance
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"""
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self.oeb, self.opts, self.log = oeb, opts, oeb.log
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if opts.remove_first_image:
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self.remove_first_image()
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def linearize_jacket(oeb):
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for x in oeb.spine[:4]:
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if XPath(JACKET_XPATH)(x.data):
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for e in XPath('//h:table|//h:tr|//h:th')(x.data):
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e.tag = base.tag('xhtml', 'div')
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for e in XPath('//h:td')(x.data):
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e.tag = base.tag('xhtml', 'span')
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break
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