def find_page_breaks(self, item):
if self.page_break_selectors is None:
self.page_break_selectors = set()
stylesheets = [x.data for x in self.oeb.manifest if x.media_type in
OEB_STYLES]
for rule in rules(stylesheets):
before = force_unicode(getattr(rule.style.getPropertyCSSValue(
'page-break-before'), 'cssText', '').strip().lower())
after = force_unicode(getattr(rule.style.getPropertyCSSValue(
'page-break-after'), 'cssText', '').strip().lower())
try:
if before and before not in {'avoid', 'auto', 'inherit'}:
self.page_break_selectors.add((rule.selectorText, True))
if self.remove_css_pagebreaks:
rule.style.removeProperty('page-break-before')
except:
pass
try:
if after and after not in {'avoid', 'auto', 'inherit'}:
self.page_break_selectors.add((rule.selectorText, False))
if self.remove_css_pagebreaks:
rule.style.removeProperty('page-break-after')
except:
pass
page_breaks = set()
select = Select(item.data)
if not self.page_break_selectors:
return [], []
body = item.data.xpath('//h:body', namespaces=NAMESPACES)
if not body:
return [], []
descendants = frozenset(body[0].iterdescendants('*'))
for selector, before in self.page_break_selectors:
try:
for elem in select(selector):
if elem in descendants and elem.tag.rpartition('}')[2].lower() not in {'html', 'body', 'head', 'style', 'script', 'meta', 'link'}:
elem.set('pb_before', '1' if before else '0')
page_breaks.add(elem)
except SelectorError as err:
self.log.warn('Ignoring page breaks specified with invalid CSS selector: %r (%s)' % (selector, as_unicode(err)))
for i, elem in enumerate(item.data.iter('*')):
try:
elem.set('pb_order', str(i))
except TypeError: # Cant set attributes on comment nodes etc.
continue
page_breaks = list(page_breaks)
page_breaks.sort(key=lambda x:int(x.get('pb_order')))
page_break_ids, page_breaks_ = [], []
for i, x in enumerate(page_breaks):
x.set('id', x.get('id', 'calibre_pb_%d'%i))
id = x.get('id')
try:
xp = XPath('//*[@id="%s"]'%id)
except:
try:
xp = XPath("//*[@id='%s']"%id)
except:
# The id has both a quote and an apostrophe or some other
# Just replace it since I doubt its going to work anywhere else
# either
id = 'calibre_pb_%d'%i
x.set('id', id)
xp = XPath('//*[@id=%r]'%id)
page_breaks_.append((xp, x.get('pb_before', '0') == '1'))
page_break_ids.append(id)
for elem in item.data.iter(etree.Element):
elem.attrib.pop('pb_order', False)
elem.attrib.pop('pb_before', False)
return page_breaks_, page_break_ids
def find_page_breaks(self, item):
if self.page_break_selectors is None:
from calibre.ebooks.oeb.stylizer import fix_namespace
css_to_xpath = HTMLTranslator().css_to_xpath
self.page_break_selectors = set([])
stylesheets = [
x.data for x in self.oeb.manifest if x.media_type in OEB_STYLES
]
for rule in rules(stylesheets):
before = getattr(
rule.style.getPropertyCSSValue('page-break-before'),
'cssText', '').strip().lower()
after = getattr(
rule.style.getPropertyCSSValue('page-break-after'),
'cssText', '').strip().lower()
try:
if before and before not in {'avoid', 'auto', 'inherit'}:
self.page_break_selectors.add((XPath(
fix_namespace(css_to_xpath(rule.selectorText))),
True))
if self.remove_css_pagebreaks:
rule.style.removeProperty('page-break-before')
except:
pass
try:
if after and after not in {'avoid', 'auto', 'inherit'}:
self.page_break_selectors.add((XPath(
fix_namespace(css_to_xpath(rule.selectorText))),
False))
if self.remove_css_pagebreaks:
rule.style.removeProperty('page-break-after')
except:
pass
page_breaks = set([])
for selector, before in self.page_break_selectors:
body = item.data.xpath('//h:body', namespaces=NAMESPACES)
if not body:
continue
for elem in selector(body[0]):
if elem not in body:
elem.set('pb_before', '1' if before else '0')
page_breaks.add(elem)
for i, elem in enumerate(item.data.iter()):
try:
elem.set('pb_order', str(i))
except TypeError: # Cant set attributes on comment nodes etc.
continue
page_breaks = list(page_breaks)
page_breaks.sort(key=lambda x: int(x.get('pb_order')))
page_break_ids, page_breaks_ = [], []
for i, x in enumerate(page_breaks):
x.set('id', x.get('id', 'calibre_pb_%d' % i))
id = x.get('id')
try:
xp = XPath('//*[@id="%s"]' % id)
except:
try:
xp = XPath("//*[@id='%s']" % id)
except:
# The id has both a quote and an apostrophe or some other
# Just replace it since I doubt its going to work anywhere else
# either
id = 'calibre_pb_%d' % i
x.set('id', id)
xp = XPath('//*[@id=%r]' % id)
page_breaks_.append((xp, x.get('pb_before', '0') == '1'))
page_break_ids.append(id)
for elem in item.data.iter():
elem.attrib.pop('pb_order', False)
elem.attrib.pop('pb_before', False)
return page_breaks_, page_break_ids
def find_page_breaks(self, item):
if self.page_break_selectors is None:
self.page_break_selectors = set()
stylesheets = [
x.data for x in self.oeb.manifest if x.media_type in OEB_STYLES
]
for rule in rules(stylesheets):
before = getattr(
rule.style.getPropertyCSSValue('page-break-before'),
'cssText', '').strip().lower()
after = getattr(
rule.style.getPropertyCSSValue('page-break-after'),
'cssText', '').strip().lower()
try:
if before and before not in {'avoid', 'auto', 'inherit'}:
self.page_break_selectors.add(
(rule.selectorText, True))
if self.remove_css_pagebreaks:
rule.style.removeProperty('page-break-before')
except:
pass
try:
if after and after not in {'avoid', 'auto', 'inherit'}:
self.page_break_selectors.add(
(rule.selectorText, False))
if self.remove_css_pagebreaks:
rule.style.removeProperty('page-break-after')
except:
pass
page_breaks = set()
select = Select(item.data)
if not self.page_break_selectors:
return [], []
body = item.data.xpath('//h:body', namespaces=NAMESPACES)
if not body:
return [], []
descendants = frozenset(body[0].iterdescendants('*'))
for selector, before in self.page_break_selectors:
try:
for elem in select(selector):
if elem in descendants and elem.tag.rpartition(
'}')[2].lower() not in {
'html', 'body', 'head', 'style', 'script',
'meta', 'link'
}:
elem.set('pb_before', '1' if before else '0')
page_breaks.add(elem)
except SelectorError as err:
self.log.warn(
'Ignoring page breaks specified with invalid CSS selector: %r (%s)'
% (selector, as_unicode(err)))
for i, elem in enumerate(item.data.iter('*')):
try:
elem.set('pb_order', str(i))
except TypeError: # Cant set attributes on comment nodes etc.
continue
page_breaks = list(page_breaks)
page_breaks.sort(key=lambda x: int(x.get('pb_order')))
page_break_ids, page_breaks_ = [], []
for i, x in enumerate(page_breaks):
x.set('id', x.get('id', 'calibre_pb_%d' % i))
id = x.get('id')
try:
xp = XPath('//*[@id="%s"]' % id)
except:
try:
xp = XPath("//*[@id='%s']" % id)
except:
# The id has both a quote and an apostrophe or some other
# Just replace it since I doubt its going to work anywhere else
# either
id = 'calibre_pb_%d' % i
x.set('id', id)
xp = XPath('//*[@id=%r]' % id)
page_breaks_.append((xp, x.get('pb_before', '0') == '1'))
page_break_ids.append(id)
for elem in item.data.iter(etree.Element):
elem.attrib.pop('pb_order', False)
elem.attrib.pop('pb_before', False)
return page_breaks_, page_break_ids
def find_page_breaks(self, item):
if self.page_break_selectors is None:
from calibre.ebooks.oeb.stylizer import fix_namespace
css_to_xpath = HTMLTranslator().css_to_xpath
self.page_break_selectors = set([])
stylesheets = [x.data for x in self.oeb.manifest if x.media_type in
OEB_STYLES]
for rule in rules(stylesheets):
before = getattr(rule.style.getPropertyCSSValue(
'page-break-before'), 'cssText', '').strip().lower()
after = getattr(rule.style.getPropertyCSSValue(
'page-break-after'), 'cssText', '').strip().lower()
try:
if before and before not in {'avoid', 'auto', 'inherit'}:
self.page_break_selectors.add((XPath(fix_namespace(css_to_xpath(rule.selectorText))),
True))
if self.remove_css_pagebreaks:
rule.style.removeProperty('page-break-before')
except:
pass
try:
if after and after not in {'avoid', 'auto', 'inherit'}:
self.page_break_selectors.add((XPath(fix_namespace(css_to_xpath(rule.selectorText))),
False))
if self.remove_css_pagebreaks:
rule.style.removeProperty('page-break-after')
except:
pass
page_breaks = set([])
for selector, before in self.page_break_selectors:
body = item.data.xpath('//h:body', namespaces=NAMESPACES)
if not body:
continue
for elem in selector(body[0]):
if elem not in body:
elem.set('pb_before', '1' if before else '0')
page_breaks.add(elem)
for i, elem in enumerate(item.data.iter()):
try:
elem.set('pb_order', str(i))
except TypeError: # Cant set attributes on comment nodes etc.
continue
page_breaks = list(page_breaks)
page_breaks.sort(key=lambda x:int(x.get('pb_order')))
page_break_ids, page_breaks_ = [], []
for i, x in enumerate(page_breaks):
x.set('id', x.get('id', 'calibre_pb_%d'%i))
id = x.get('id')
try:
xp = XPath('//*[@id="%s"]'%id)
except:
try:
xp = XPath("//*[@id='%s']"%id)
except:
# The id has both a quote and an apostrophe or some other
# Just replace it since I doubt its going to work anywhere else
# either
id = 'calibre_pb_%d'%i
x.set('id', id)
xp = XPath('//*[@id=%r]'%id)
page_breaks_.append((xp, x.get('pb_before', '0') == '1'))
page_break_ids.append(id)
for elem in item.data.iter():
elem.attrib.pop('pb_order', False)
elem.attrib.pop('pb_before', False)
return page_breaks_, page_break_ids