def do_paged_render(self):
if self.paged_js is None:
import uuid
from calibre.utils.resources import compiled_coffeescript as cc
self.paged_js = cc('ebooks.oeb.display.utils').decode('utf-8')
self.paged_js += cc('ebooks.oeb.display.indexing').decode('utf-8')
self.paged_js += cc('ebooks.oeb.display.paged').decode('utf-8')
self.paged_js += cc('ebooks.oeb.display.mathjax').decode('utf-8')
if self.opts.pdf_hyphenate:
self.paged_js += P('viewer/hyphenate/Hyphenator.js',
data=True).decode('utf-8')
hjs, self.hyphenate_lang = load_hyphenator_dicts(
{}, self.book_language)
self.paged_js += hjs
self.hf_uuid = str(uuid.uuid4()).replace('-', '')
self.view.page().mainFrame().addToJavaScriptWindowObject(
"py_bridge", self)
self.view.page().longjs_counter = 0
evaljs = self.view.page().mainFrame().evaluateJavaScript
evaljs(self.paged_js)
self.load_mathjax()
if self.opts.pdf_hyphenate:
self.hyphenate(evaljs)
margin_top, margin_bottom = self.margin_top, self.margin_bottom
page_margins = None
if self.opts.pdf_use_document_margins:
doc_margins = evaljs(
'document.documentElement.getAttribute("data-calibre-pdf-output-page-margins")'
)
try:
doc_margins = json.loads(doc_margins)
except Exception:
doc_margins = None
if doc_margins and isinstance(doc_margins, dict):
doc_margins = {
k: float(v)
for k, v in iteritems(doc_margins)
if isinstance(v, numbers.Number)
and k in {'right', 'top', 'left', 'bottom'}
}
if doc_margins:
margin_top = margin_bottom = 0
page_margins = self.convert_page_margins(doc_margins)
amap = json.loads(
evaljs('''
document.body.style.backgroundColor = "white";
// Qt WebKit cannot handle opacity with the Pdf backend
s = document.createElement('style');
s.textContent = '* {opacity: 1 !important}';
document.documentElement.appendChild(s);
paged_display.set_geometry(1, %d, %d, %d);
paged_display.layout();
paged_display.fit_images();
ret = book_indexing.all_links_and_anchors();
window.scrollTo(0, 0); // This is needed as getting anchor positions could have caused the viewport to scroll
JSON.stringify(ret);
''' % (margin_top, 0, margin_bottom)))
if not isinstance(amap, dict):
amap = {
'links': [],
'anchors': {}
} # Some javascript error occurred
for val in itervalues(amap['anchors']):
if isinstance(val, dict) and 'column' in val:
val['column'] = int(val['column'])
for href, val in amap['links']:
if isinstance(val, dict) and 'column' in val:
val['column'] = int(val['column'])
sections = self.get_sections(amap['anchors'])
tl_sections = self.get_sections(amap['anchors'], True)
col = 0
if self.header:
evaljs('paged_display.header_template = ' +
json.dumps(self.header))
if self.footer:
evaljs('paged_display.footer_template = ' +
json.dumps(self.footer))
if self.header or self.footer:
evaljs('paged_display.create_header_footer("%s");' % self.hf_uuid)
start_page = self.current_page_num
mf = self.view.page().mainFrame()
def set_section(col, sections, attr):
# If this page has no section, use the section from the previous page
idx = col if col in sections else col - 1 if col - 1 in sections else None
if idx is not None:
setattr(self, attr, sections[idx][0])
from calibre.ebooks.pdf.render.toc import calculate_page_number
while True:
set_section(col, sections, 'current_section')
set_section(col, tl_sections, 'current_tl_section')
self.doc.init_page(page_margins)
num = calculate_page_number(self.current_page_num,
self.opts.pdf_page_number_map, evaljs)
if self.header or self.footer:
if evaljs('paged_display.update_header_footer(%d)' %
num) is True:
self.load_header_footer_images()
self.painter.save()
mf.render(self.painter, mf.ContentsLayer)
self.painter.restore()
try:
nsl = int(evaljs('paged_display.next_screen_location()'))
except (TypeError, ValueError):
break
self.doc.end_page(nsl <= 0)
if nsl <= 0:
break
evaljs(
'window.scrollTo(%d, 0); paged_display.position_header_footer();'
% nsl)
if self.doc.errors_occurred:
break
col += 1
if not self.doc.errors_occurred and self.doc.current_page_num > 1:
self.doc.add_links(self.current_item, start_page, amap['links'],
amap['anchors'])
def do_paged_render(self):
if self.paged_js is None:
import uuid
from calibre.utils.resources import compiled_coffeescript as cc
self.paged_js = cc('ebooks.oeb.display.utils')
self.paged_js += cc('ebooks.oeb.display.indexing')
self.paged_js += cc('ebooks.oeb.display.paged')
self.paged_js += cc('ebooks.oeb.display.mathjax')
if self.opts.pdf_hyphenate:
self.paged_js += P('viewer/hyphenate/Hyphenator.js', data=True).decode('utf-8')
hjs, self.hyphenate_lang = load_hyphenator_dicts({}, self.book_language)
self.paged_js += hjs
self.hf_uuid = str(uuid.uuid4()).replace('-', '')
self.view.page().mainFrame().addToJavaScriptWindowObject("py_bridge", self)
self.view.page().longjs_counter = 0
evaljs = self.view.page().mainFrame().evaluateJavaScript
evaljs(self.paged_js)
self.load_mathjax()
if self.opts.pdf_hyphenate:
self.hyphenate(evaljs)
margin_top, margin_bottom = self.margin_top, self.margin_bottom
page_margins = None
if self.opts.pdf_use_document_margins:
doc_margins = evaljs('document.documentElement.getAttribute("data-calibre-pdf-output-page-margins")')
try:
doc_margins = json.loads(doc_margins)
except Exception:
doc_margins = None
if doc_margins and isinstance(doc_margins, dict):
doc_margins = {k:float(v) for k, v in doc_margins.iteritems() if isinstance(v, (float, int)) and k in {'right', 'top', 'left', 'bottom'}}
if doc_margins:
margin_top = margin_bottom = 0
page_margins = self.convert_page_margins(doc_margins)
amap = json.loads(evaljs('''
document.body.style.backgroundColor = "white";
// Qt WebKit cannot handle opacity with the Pdf backend
s = document.createElement('style');
s.textContent = '* {opacity: 1 !important}';
document.documentElement.appendChild(s);
paged_display.set_geometry(1, %d, %d, %d);
paged_display.layout();
paged_display.fit_images();
ret = book_indexing.all_links_and_anchors();
window.scrollTo(0, 0); // This is needed as getting anchor positions could have caused the viewport to scroll
JSON.stringify(ret);
'''%(margin_top, 0, margin_bottom)))
if not isinstance(amap, dict):
amap = {'links':[], 'anchors':{}} # Some javascript error occurred
for val in amap['anchors'].itervalues():
if isinstance(val, dict) and 'column' in val:
val['column'] = int(val['column'])
for href, val in amap['links']:
if isinstance(val, dict) and 'column' in val:
val['column'] = int(val['column'])
sections = self.get_sections(amap['anchors'])
tl_sections = self.get_sections(amap['anchors'], True)
col = 0
if self.header:
evaljs('paged_display.header_template = ' + json.dumps(self.header))
if self.footer:
evaljs('paged_display.footer_template = ' + json.dumps(self.footer))
if self.header or self.footer:
evaljs('paged_display.create_header_footer("%s");'%self.hf_uuid)
start_page = self.current_page_num
mf = self.view.page().mainFrame()
def set_section(col, sections, attr):
# If this page has no section, use the section from the previous page
idx = col if col in sections else col - 1 if col - 1 in sections else None
if idx is not None:
setattr(self, attr, sections[idx][0])
from calibre.ebooks.pdf.render.toc import calculate_page_number
while True:
set_section(col, sections, 'current_section')
set_section(col, tl_sections, 'current_tl_section')
self.doc.init_page(page_margins)
num = calculate_page_number(self.current_page_num, self.opts.pdf_page_number_map, evaljs)
if self.header or self.footer:
if evaljs('paged_display.update_header_footer(%d)'%num) is True:
self.load_header_footer_images()
self.painter.save()
mf.render(self.painter, mf.ContentsLayer)
self.painter.restore()
try:
nsl = int(evaljs('paged_display.next_screen_location()'))
except (TypeError, ValueError):
break
self.doc.end_page(nsl <= 0)
if nsl <= 0:
break
evaljs('window.scrollTo(%d, 0); paged_display.position_header_footer();'%nsl)
if self.doc.errors_occurred:
break
col += 1
if not self.doc.errors_occurred and self.doc.current_page_num > 1:
self.doc.add_links(self.current_item, start_page, amap['links'],
amap['anchors'])