def __call__(self, oeb, context):
oeb.logger.info('Flattening CSS and remapping font sizes...')
self.context = self.opts =context
self.oeb = oeb
self.filter_css = frozenset()
if self.opts.filter_css:
try:
self.filter_css = {x.strip().lower() for x in
self.opts.filter_css.split(',')}
except:
self.oeb.log.warning('Failed to parse filter_css, ignoring')
else:
from calibre.ebooks.oeb.normalize_css import normalize_filter_css
self.filter_css = frozenset(normalize_filter_css(self.filter_css))
self.oeb.log.debug('Filtering CSS properties: %s'%
', '.join(self.filter_css))
for item in oeb.manifest.values():
# Make all links to resources absolute, as these sheets will be
# consolidated into a single stylesheet at the root of the document
if item.media_type in OEB_STYLES:
cssutils.replaceUrls(item.data, item.abshref,
ignoreImportRules=True)
self.body_font_family, self.embed_font_rules = self.get_embed_font_info(
self.opts.embed_font_family)
# Store for use in output plugins/transforms that generate content,
# like the AZW3 output inline ToC.
self.oeb.store_embed_font_rules = EmbedFontsCSSRules(self.body_font_family,
self.embed_font_rules)
self.stylize_spine()
self.sbase = self.baseline_spine() if self.fbase else None
self.fmap = FontMapper(self.sbase, self.fbase, self.fkey)
self.flatten_spine()
def filter_css(container, properties, names=()):
'''
Remove the specified CSS properties from all CSS rules in the book.
:param properties: Set of properties to remove. For example: :code:`{'font-family', 'color'}`.
:param names: The files from which to remove the properties. Defaults to all HTML and CSS files in the book.
'''
properties = normalize_filter_css(properties)
return transform_css(container, transform_sheet=partial(filter_sheet, properties=properties),
transform_style=partial(filter_declaration, properties=properties), names=names)
def __call__(self, oeb, context):
oeb.logger.info('Flattening CSS and remapping font sizes...')
self.context = self.opts = context
self.oeb = oeb
self.items = list(self.oeb.spine)
titlepage = self.oeb.guide.get('titlepage')
if titlepage is not None:
titlepage = titlepage.item
if titlepage is not None and titlepage not in self.items:
self.items.append(titlepage)
epub3_nav = None
if getattr(self.opts, 'epub3_nav_href', None):
epub3_nav = self.oeb.manifest.hrefs.get(self.opts.epub3_nav_href)
if epub3_nav is not None and epub3_nav not in self.items:
self.items.append(epub3_nav)
self.filter_css = frozenset()
if self.opts.filter_css:
try:
self.filter_css = {
x.strip().lower()
for x in self.opts.filter_css.split(',')
}
except:
self.oeb.log.warning('Failed to parse filter_css, ignoring')
else:
from calibre.ebooks.oeb.normalize_css import normalize_filter_css
self.filter_css = frozenset(
normalize_filter_css(self.filter_css))
self.oeb.log.debug('Filtering CSS properties: %s' %
', '.join(self.filter_css))
for item in oeb.manifest.values():
# Make all links to resources absolute, as these sheets will be
# consolidated into a single stylesheet at the root of the document
if item.media_type in OEB_STYLES:
css_parser.replaceUrls(item.data,
item.abshref,
ignoreImportRules=True)
self.body_font_family, self.embed_font_rules = self.get_embed_font_info(
self.opts.embed_font_family)
# Store for use in output plugins/transforms that generate content,
# like the AZW3 output inline ToC.
self.oeb.store_embed_font_rules = EmbedFontsCSSRules(
self.body_font_family, self.embed_font_rules)
self.stylize_spine()
self.sbase = self.baseline_spine() if self.fbase else None
self.fmap = FontMapper(self.sbase, self.fbase, self.fkey)
self.flatten_spine()
if epub3_nav is not None:
self.opts.epub3_nav_parsed = epub3_nav.data
self.store_page_margins()
def filter_css(container, properties, names=()):
'''
Remove the specified CSS properties from all CSS rules in the book.
:param properties: Set of properties to remove. For example: :code:`{'font-family', 'color'}`.
:param names: The files from which to remove the properties. Defaults to all HTML and CSS files in the book.
'''
if not names:
types = OEB_STYLES | OEB_DOCS
names = []
for name, mt in container.mime_map.iteritems():
if mt in types:
names.append(name)
properties = normalize_filter_css(properties)
doc_changed = False
for name in names:
mt = container.mime_map[name]
if mt in OEB_STYLES:
sheet = container.parsed(name)
filtered = filter_sheet(sheet, properties)
if filtered:
container.dirty(name)
doc_changed = True
elif mt in OEB_DOCS:
root = container.parsed(name)
changed = False
for style in root.xpath('//*[local-name()="style"]'):
if style.text and style.get(
'type', 'text/css') in {None, '', 'text/css'}:
sheet = container.parse_css(style.text)
if filter_sheet(sheet, properties):
changed = True
style.text = force_unicode(sheet.cssText, 'utf-8')
pretty_script_or_style(container, style)
for elem in root.xpath('//*[@style]'):
text = elem.get('style', None)
if text:
style = container.parse_css(text, is_declaration=True)
if filter_declaration(style, properties):
changed = True
if style.length == 0:
del elem.attrib['style']
else:
elem.set(
'style',
force_unicode(style.getCssText(separator=' '),
'utf-8'))
if changed:
container.dirty(name)
doc_changed = True
return doc_changed
def filter_css(container, properties, names=()):
'''
Remove the specified CSS properties from all CSS rules in the book.
:param properties: Set of properties to remove. For example: :code:`{'font-family', 'color'}`.
:param names: The files from which to remove the properties. Defaults to all HTML and CSS files in the book.
'''
properties = normalize_filter_css(properties)
return transform_css(container,
transform_sheet=partial(filter_sheet,
properties=properties),
transform_style=partial(filter_declaration,
properties=properties),
names=names)
def filter_css(container, properties, names=()):
"""
Remove the specified CSS properties from all CSS rules in the book.
:param properties: Set of properties to remove. For example: :code:`{'font-family', 'color'}`.
:param names: The files from which to remove the properties. Defaults to all HTML and CSS files in the book.
"""
if not names:
types = OEB_STYLES | OEB_DOCS
names = []
for name, mt in container.mime_map.iteritems():
if mt in types:
names.append(name)
properties = normalize_filter_css(properties)
doc_changed = False
for name in names:
mt = container.mime_map[name]
if mt in OEB_STYLES:
sheet = container.parsed(name)
filtered = filter_sheet(sheet, properties)
if filtered:
container.dirty(name)
doc_changed = True
elif mt in OEB_DOCS:
root = container.parsed(name)
changed = False
for style in root.xpath('//*[local-name()="style"]'):
if style.text and style.get("type", "text/css") in {None, "", "text/css"}:
sheet = container.parse_css(style.text)
if filter_sheet(sheet, properties):
changed = True
style.text = force_unicode(sheet.cssText, "utf-8")
pretty_script_or_style(container, style)
for elem in root.xpath("//*[@style]"):
text = elem.get("style", None)
if text:
style = container.parse_css(text, is_declaration=True)
if filter_declaration(style, properties):
changed = True
if style.length == 0:
del elem.attrib["style"]
else:
elem.set("style", force_unicode(style.getCssText(separator=" "), "utf-8"))
if changed:
container.dirty(name)
doc_changed = True
return doc_changed
def filter_css(container, properties, names=()):
if not names:
types = OEB_STYLES | OEB_DOCS
names = []
for name, mt in container.mime_map.iteritems():
if mt in types:
names.append(name)
properties = normalize_filter_css(properties)
doc_changed = False
for name in names:
mt = container.mime_map[name]
if mt in OEB_STYLES:
sheet = container.parsed(name)
filtered = filter_sheet(sheet, properties)
if filtered:
container.dirty(name)
doc_changed = True
elif mt in OEB_DOCS:
root = container.parsed(name)
changed = False
for style in root.xpath('//*[local-name()="style"]'):
if style.text and style.get(
'type', 'text/css') in {None, '', 'text/css'}:
sheet = container.parse_css(style.text)
if filter_sheet(sheet, properties):
changed = True
style.text = force_unicode(sheet.cssText, 'utf-8')
pretty_script_or_style(container, style)
for elem in root.xpath('//*[@style]'):
text = elem.get('style', None)
if text:
style = container.parse_css(text, is_declaration=True)
if filter_declaration(style, properties):
changed = True
if style.length == 0:
del elem.attrib['style']
else:
elem.set(
'style',
force_unicode(style.getCssText(separator=' '),
'utf-8'))
if changed:
container.dirty(name)
doc_changed = True
return doc_changed
def filter_css(container, properties, names=()):
if not names:
types = OEB_STYLES | OEB_DOCS
names = []
for name, mt in container.mime_map.iteritems():
if mt in types:
names.append(name)
properties = normalize_filter_css(properties)
doc_changed = False
for name in names:
mt = container.mime_map[name]
if mt in OEB_STYLES:
sheet = container.parsed(name)
filtered = filter_sheet(sheet, properties)
if filtered:
container.dirty(name)
doc_changed = True
elif mt in OEB_DOCS:
root = container.parsed(name)
changed = False
for style in root.xpath('//*[local-name()="style"]'):
if style.text and style.get('type', 'text/css') in {None, '', 'text/css'}:
sheet = container.parse_css(style.text)
if filter_sheet(sheet, properties):
changed = True
style.text = force_unicode(sheet.cssText, 'utf-8')
pretty_script_or_style(container, style)
for elem in root.xpath('//*[@style]'):
text = elem.get('style', None)
if text:
style = container.parse_css(text, is_declaration=True)
if filter_declaration(style, properties):
changed = True
if style.length == 0:
del elem.attrib['style']
else:
elem.set('style', force_unicode(style.getCssText(separator=' '), 'utf-8'))
if changed:
container.dirty(name)
doc_changed = True
return doc_changed
