def _wait_for_replies(self, reply_count, timeout):
final_time = time.time() + (self.default_timeout if timeout is default_timeout else timeout)
loop = QEventLoop(self)
while time.time() < final_time and self.nam.reply_count < reply_count:
loop.processEvents()
time.sleep(0.1)
if self.nam.reply_count < reply_count:
raise Timeout("Waiting for replies took longer than %d seconds" % timeout)
def _wait_for_replies(self, reply_count, timeout):
final_time = time.time() + (self.default_timeout if timeout is default_timeout else timeout)
loop = QEventLoop(self)
while (time.time() < final_time and self.nam.reply_count <
reply_count):
loop.processEvents()
time.sleep(0.1)
if self.nam.reply_count < reply_count:
raise Timeout('Waiting for replies took longer than %d seconds' %
timeout)
def _wait_for_replies(self, reply_count, timeout):
final_time = time.time() + timeout
loop = QEventLoop(self)
while (time.time() < final_time and self.nam.reply_count <
reply_count):
loop.processEvents()
time.sleep(0.1)
if self.nam.reply_count < reply_count:
raise Timeout('Waiting for replies took longer than %d seconds' %
timeout)
def do_print(self, printer):
painter = QPainter(printer)
zoomx = printer.logicalDpiX() / self.view.logicalDpiX()
zoomy = printer.logicalDpiY() / self.view.logicalDpiY()
painter.scale(zoomx, zoomy)
pr = printer.pageRect()
self.view.page().setViewportSize(
QSize(pr.width() / zoomx,
pr.height() / zoomy))
evaljs = self.mf.evaluateJavaScript
loop = QEventLoop(self)
first = True
for path in self.iterator.spine:
self.loaded_ok = None
load_html(path,
self.view,
codec=getattr(path, 'encoding', 'utf-8'),
mime_type=getattr(path, 'mime_type', None))
while self.loaded_ok is None:
loop.processEvents(loop.ExcludeUserInputEvents)
if not self.loaded_ok:
return error_dialog(self.parent(),
_('Failed to render'),
_('Failed to render document %s') % path,
show=True)
evaljs(self.paged_js)
evaljs('''
document.body.style.backgroundColor = "white";
paged_display.set_geometry(1, 0, 0, 0);
paged_display.layout();
paged_display.fit_images();
''')
while True:
if not first:
printer.newPage()
first = False
self.mf.render(painter)
nsl = evaljs('paged_display.next_screen_location()').toInt()
if not nsl[1] or nsl[0] <= 0: break
evaljs('window.scrollTo(%d, 0)' % nsl[0])
painter.end()
def do_print(self, printer):
painter = QPainter(printer)
zoomx = printer.logicalDpiX()/self.view.logicalDpiX()
zoomy = printer.logicalDpiY()/self.view.logicalDpiY()
painter.scale(zoomx, zoomy)
pr = printer.pageRect()
self.view.page().setViewportSize(QSize(pr.width()/zoomx,
pr.height()/zoomy))
evaljs = self.mf.evaluateJavaScript
loop = QEventLoop(self)
pagenum = 0
from_, to = printer.fromPage(), printer.toPage()
first = True
for path in self.iterator.spine:
self.loaded_ok = None
load_html(path, self.view, codec=getattr(path, 'encoding', 'utf-8'),
mime_type=getattr(path, 'mime_type', None))
while self.loaded_ok is None:
loop.processEvents(loop.ExcludeUserInputEvents)
if not self.loaded_ok:
return error_dialog(self.parent(), _('Failed to render'),
_('Failed to render document %s')%path, show=True)
evaljs(self.paged_js)
evaljs('''
document.body.style.backgroundColor = "white";
paged_display.set_geometry(1, 0, 0, 0);
paged_display.layout();
paged_display.fit_images();
''')
while True:
pagenum += 1
if (pagenum >= from_ and (to == 0 or pagenum <= to)):
if not first:
printer.newPage()
first = False
self.mf.render(painter)
nsl = evaljs('paged_display.next_screen_location()').toInt()
if not nsl[1] or nsl[0] <= 0: break
evaljs('window.scrollTo(%d, 0)'%nsl[0])
painter.end()
def download_file(self, url_or_selector_or_qwe, timeout=60):
"""
Download unsupported content: i.e. files the browser cannot handle
itself or files marked for saving as files by the website. Useful if
you want to download something like an epub file after authentication.
You can pass in either the url to the file to be downloaded, or a
selector that points to an element to be clicked on the current page
which will cause the file to be downloaded.
"""
ans = [False, None, []]
loop = QEventLoop(self)
start_time = time.time()
end_time = start_time + timeout
self.page.unsupportedContent.disconnect(self.page.on_unsupported_content)
try:
def download(reply):
if ans[0]:
reply.abort() # We only handle the first unsupported download
return
ans[0] = True
while not reply.isFinished() and end_time > time.time():
if not loop.processEvents():
time.sleep(0.01)
raw = bytes(bytearray(reply.readAll()))
if raw:
ans[-1].append(raw)
if not reply.isFinished():
ans[1] = Timeout("Loading of %r took longer than %d seconds" % (url_or_selector_or_qwe, timeout))
ans[-1].append(bytes(bytearray(reply.readAll())))
self.page.unsupportedContent.connect(download)
if hasattr(url_or_selector_or_qwe, "rstrip") and re.match("[a-z]+://", url_or_selector_or_qwe) is not None:
# We have a URL
self.page.mainFrame().load(QUrl(url_or_selector_or_qwe))
else:
self.click(url_or_selector_or_qwe, wait_for_load=False)
lw = LoadWatcher(self.page)
while not ans[0] and lw.is_loading and end_time > time.time():
if not loop.processEvents():
time.sleep(0.01)
if not ans[0]:
raise NotAFile(
"%r does not point to a downloadable file. You can only"
" use this method to download files that the browser cannot handle"
" natively. Or files that are marked with the "
" content-disposition: attachment header" % url_or_selector_or_qwe
)
if ans[1] is not None:
raise ans[1]
return b"".join(ans[-1])
finally:
self.page.unsupportedContent.disconnect()
self.page.unsupportedContent.connect(self.page.on_unsupported_content)
def _wait_for_load(self, timeout, url=None):
timeout = self.default_timeout if timeout is default_timeout else timeout
loop = QEventLoop(self)
start_time = time.time()
end_time = start_time + timeout
lw = LoadWatcher(self.page, parent=self)
while lw.is_loading and end_time > time.time():
if not loop.processEvents():
time.sleep(0.01)
if lw.is_loading:
raise Timeout("Loading of %r took longer than %d seconds" % (url, timeout))
return lw.loaded_ok
def _wait_for_load(self, timeout, url=None):
loop = QEventLoop(self)
start_time = time.time()
end_time = start_time + timeout
lw = LoadWatcher(self.page, parent=self)
while lw.is_loading and end_time > time.time():
if not loop.processEvents():
time.sleep(0.01)
if lw.is_loading:
raise Timeout('Loading of %r took longer than %d seconds' %
(url, timeout))
return lw.loaded_ok
def download_file(self, url_or_selector_or_qwe, timeout=60):
'''
Download unsupported content: i.e. files the browser cannot handle
itself or files marked for saving as files by the website. Useful if
you want to download something like an epub file after authentication.
You can pass in either the url to the file to be downloaded, or a
selector that points to an element to be clicked on the current page
which will cause the file to be downloaded.
'''
ans = [False, None, []]
loop = QEventLoop(self)
start_time = time.time()
end_time = start_time + timeout
self.page.unsupportedContent.disconnect(self.page.on_unsupported_content)
try:
def download(reply):
if ans[0]:
reply.abort() # We only handle the first unsupported download
return
ans[0] = True
while not reply.isFinished() and end_time > time.time():
if not loop.processEvents():
time.sleep(0.01)
raw = bytes(bytearray(reply.readAll()))
if raw:
ans[-1].append(raw)
if not reply.isFinished():
ans[1] = Timeout('Loading of %r took longer than %d seconds'%(url_or_selector_or_qwe, timeout))
ans[-1].append(bytes(bytearray(reply.readAll())))
self.page.unsupportedContent.connect(download)
if hasattr(url_or_selector_or_qwe, 'rstrip') and re.match('[a-z]+://', url_or_selector_or_qwe) is not None:
# We have a URL
self.page.mainFrame().load(QUrl(url_or_selector_or_qwe))
else:
self.click(url_or_selector_or_qwe, wait_for_load=False)
lw = LoadWatcher(self.page)
while not ans[0] and lw.is_loading and end_time > time.time():
if not loop.processEvents():
time.sleep(0.01)
if not ans[0]:
raise NotAFile('%r does not point to a downloadable file. You can only'
' use this method to download files that the browser cannot handle'
' natively. Or files that are marked with the '
' content-disposition: attachment header' % url_or_selector_or_qwe)
if ans[1] is not None:
raise ans[1]
return b''.join(ans[-1])
finally:
self.page.unsupportedContent.disconnect()
self.page.unsupportedContent.connect(self.page.on_unsupported_content)
def run_for_a_time(self, timeout):
final_time = time.time() + timeout
loop = QEventLoop(self)
while (time.time() < final_time):
if not loop.processEvents():
time.sleep(0.1)
class PDFWriter(QObject):
def _pass_json_value_getter(self):
val = json.dumps(self.bridge_value)
return QString(val)
def _pass_json_value_setter(self, value):
self.bridge_value = json.loads(unicode(value))
_pass_json_value = pyqtProperty(QString,
fget=_pass_json_value_getter,
fset=_pass_json_value_setter)
@pyqtSlot(result=unicode)
def title(self):
return self.doc_title
@pyqtSlot(result=unicode)
def author(self):
return self.doc_author
@pyqtSlot(result=unicode)
def section(self):
return self.current_section
def __init__(self, opts, log, cover_data=None, toc=None):
from calibre.gui2 import is_ok_to_use_qt
if not is_ok_to_use_qt():
raise Exception('Not OK to use Qt')
QObject.__init__(self)
self.logger = self.log = log
self.opts = opts
self.cover_data = cover_data
self.paged_js = None
self.toc = toc
self.loop = QEventLoop()
self.view = QWebView()
self.page = Page(opts, self.log)
self.view.setPage(self.page)
self.view.setRenderHints(QPainter.Antialiasing
| QPainter.TextAntialiasing
| QPainter.SmoothPixmapTransform)
self.view.loadFinished.connect(self.render_html,
type=Qt.QueuedConnection)
for x in (Qt.Horizontal, Qt.Vertical):
self.view.page().mainFrame().setScrollBarPolicy(
x, Qt.ScrollBarAlwaysOff)
self.report_progress = lambda x, y: x
self.current_section = ''
def dump(self, items, out_stream, pdf_metadata):
opts = self.opts
page_size = get_page_size(self.opts)
xdpi, ydpi = self.view.logicalDpiX(), self.view.logicalDpiY()
# We cannot set the side margins in the webview as there is no right
# margin for the last page (the margins are implemented with
# -webkit-column-gap)
ml, mr = opts.margin_left, opts.margin_right
self.doc = PdfDevice(out_stream,
page_size=page_size,
left_margin=ml,
top_margin=0,
right_margin=mr,
bottom_margin=0,
xdpi=xdpi,
ydpi=ydpi,
errors=self.log.error,
debug=self.log.debug,
compress=not opts.uncompressed_pdf,
mark_links=opts.pdf_mark_links)
self.footer = opts.pdf_footer_template
if self.footer:
self.footer = self.footer.strip()
if not self.footer and opts.pdf_page_numbers:
self.footer = '<p style="text-align:center; text-indent: 0">_PAGENUM_</p>'
self.header = opts.pdf_header_template
if self.header:
self.header = self.header.strip()
min_margin = 36
if self.footer and opts.margin_bottom < min_margin:
self.log.warn(
'Bottom margin is too small for footer, increasing it.')
opts.margin_bottom = min_margin
if self.header and opts.margin_top < min_margin:
self.log.warn('Top margin is too small for header, increasing it.')
opts.margin_top = min_margin
self.page.setViewportSize(QSize(self.doc.width(), self.doc.height()))
self.render_queue = items
self.total_items = len(items)
mt, mb = map(self.doc.to_px, (opts.margin_top, opts.margin_bottom))
self.margin_top, self.margin_bottom = map(lambda x: int(floor(x)),
(mt, mb))
self.painter = QPainter(self.doc)
self.doc.set_metadata(title=pdf_metadata.title,
author=pdf_metadata.author,
tags=pdf_metadata.tags)
self.doc_title = pdf_metadata.title
self.doc_author = pdf_metadata.author
self.painter.save()
try:
if self.cover_data is not None:
p = QPixmap()
p.loadFromData(self.cover_data)
if not p.isNull():
self.doc.init_page()
draw_image_page(QRect(*self.doc.full_page_rect),
self.painter,
p,
preserve_aspect_ratio=self.opts.
preserve_cover_aspect_ratio)
self.doc.end_page()
finally:
self.painter.restore()
QTimer.singleShot(0, self.render_book)
if self.loop.exec_() == 1:
raise Exception('PDF Output failed, see log for details')
if self.toc is not None and len(self.toc) > 0:
self.doc.add_outline(self.toc)
self.painter.end()
if self.doc.errors_occurred:
raise Exception('PDF Output failed, see log for details')
def render_book(self):
if self.doc.errors_occurred:
return self.loop.exit(1)
try:
if not self.render_queue:
self.loop.exit()
else:
self.render_next()
except:
self.logger.exception('Rendering failed')
self.loop.exit(1)
def render_next(self):
item = unicode(self.render_queue.pop(0))
self.logger.debug('Processing %s...' % item)
self.current_item = item
load_html(item, self.view)
def render_html(self, ok):
if ok:
try:
self.do_paged_render()
except:
self.log.exception('Rendering failed')
self.loop.exit(1)
return
else:
# The document is so corrupt that we can't render the page.
self.logger.error('Document cannot be rendered.')
self.loop.exit(1)
return
done = self.total_items - len(self.render_queue)
self.report_progress(
done / self.total_items,
_('Rendered %s' % os.path.basename(self.current_item)))
self.render_book()
@property
def current_page_num(self):
return self.doc.current_page_num
def load_mathjax(self):
evaljs = self.view.page().mainFrame().evaluateJavaScript
mjpath = P(u'viewer/mathjax').replace(os.sep, '/')
if iswindows:
mjpath = u'/' + mjpath
if evaljs('''
window.mathjax.base = %s;
mathjax.check_for_math(); mathjax.math_present
''' % (json.dumps(mjpath, ensure_ascii=False))).toBool():
self.log.debug('Math present, loading MathJax')
while not evaljs('mathjax.math_loaded').toBool():
self.loop.processEvents(self.loop.ExcludeUserInputEvents)
evaljs(
'document.getElementById("MathJax_Message").style.display="none";'
)
def get_sections(self, anchor_map):
sections = {}
ci = os.path.abspath(os.path.normcase(self.current_item))
if self.toc is not None:
for toc in self.toc.flat():
path = toc.abspath or None
frag = toc.fragment or None
if path is None:
continue
path = os.path.abspath(os.path.normcase(path))
if path == ci:
col = 0
if frag and frag in anchor_map:
col = anchor_map[frag]['column']
if col not in sections:
sections[col] = toc.text or _('Untitled')
return sections
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')
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()
evaljs('''
py_bridge.__defineGetter__('value', function() {
return JSON.parse(this._pass_json_value);
});
py_bridge.__defineSetter__('value', function(val) {
this._pass_json_value = JSON.stringify(val);
});
document.body.style.backgroundColor = "white";
paged_display.set_geometry(1, %d, %d, %d);
paged_display.layout();
paged_display.fit_images();
py_bridge.value = book_indexing.all_links_and_anchors();
''' % (self.margin_top, 0, self.margin_bottom))
amap = self.bridge_value
if not isinstance(amap, dict):
amap = {
'links': [],
'anchors': {}
} # Some javascript error occurred
sections = self.get_sections(amap['anchors'])
col = 0
if self.header:
self.bridge_value = self.header
evaljs('paged_display.header_template = py_bridge.value')
if self.footer:
self.bridge_value = self.footer
evaljs('paged_display.footer_template = py_bridge.value')
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()
while True:
if col in sections:
self.current_section = sections[col]
self.doc.init_page()
if self.header or self.footer:
evaljs('paged_display.update_header_footer(%d)' %
self.current_page_num)
self.painter.save()
mf.render(self.painter)
self.painter.restore()
nsl = evaljs('paged_display.next_screen_location()').toInt()
self.doc.end_page()
if not nsl[1] or nsl[0] <= 0:
break
evaljs(
'window.scrollTo(%d, 0); paged_display.position_header_footer();'
% nsl[0])
if self.doc.errors_occurred:
break
col += 1
if not self.doc.errors_occurred:
self.doc.add_links(self.current_item, start_page, amap['links'],
amap['anchors'])
class PDFWriter(QObject):
def _pass_json_value_getter(self):
val = json.dumps(self.bridge_value)
return QString(val)
def _pass_json_value_setter(self, value):
self.bridge_value = json.loads(unicode(value))
_pass_json_value = pyqtProperty(QString, fget=_pass_json_value_getter,
fset=_pass_json_value_setter)
@pyqtSlot(result=unicode)
def title(self):
return self.doc_title
@pyqtSlot(result=unicode)
def author(self):
return self.doc_author
@pyqtSlot(result=unicode)
def section(self):
return self.current_section
def __init__(self, opts, log, cover_data=None, toc=None):
from calibre.gui2 import is_ok_to_use_qt
if not is_ok_to_use_qt():
raise Exception('Not OK to use Qt')
QObject.__init__(self)
self.logger = self.log = log
self.opts = opts
self.cover_data = cover_data
self.paged_js = None
self.toc = toc
self.loop = QEventLoop()
self.view = QWebView()
self.page = Page(opts, self.log)
self.view.setPage(self.page)
self.view.setRenderHints(QPainter.Antialiasing|
QPainter.TextAntialiasing|QPainter.SmoothPixmapTransform)
self.view.loadFinished.connect(self.render_html,
type=Qt.QueuedConnection)
for x in (Qt.Horizontal, Qt.Vertical):
self.view.page().mainFrame().setScrollBarPolicy(x,
Qt.ScrollBarAlwaysOff)
self.report_progress = lambda x, y: x
self.current_section = ''
def dump(self, items, out_stream, pdf_metadata):
opts = self.opts
page_size = get_page_size(self.opts)
xdpi, ydpi = self.view.logicalDpiX(), self.view.logicalDpiY()
# We cannot set the side margins in the webview as there is no right
# margin for the last page (the margins are implemented with
# -webkit-column-gap)
ml, mr = opts.margin_left, opts.margin_right
self.doc = PdfDevice(out_stream, page_size=page_size, left_margin=ml,
top_margin=0, right_margin=mr, bottom_margin=0,
xdpi=xdpi, ydpi=ydpi, errors=self.log.error,
debug=self.log.debug, compress=not
opts.uncompressed_pdf,
mark_links=opts.pdf_mark_links)
self.footer = opts.pdf_footer_template
if self.footer:
self.footer = self.footer.strip()
if not self.footer and opts.pdf_page_numbers:
self.footer = '<p style="text-align:center; text-indent: 0">_PAGENUM_</p>'
self.header = opts.pdf_header_template
if self.header:
self.header = self.header.strip()
min_margin = 36
if self.footer and opts.margin_bottom < min_margin:
self.log.warn('Bottom margin is too small for footer, increasing it.')
opts.margin_bottom = min_margin
if self.header and opts.margin_top < min_margin:
self.log.warn('Top margin is too small for header, increasing it.')
opts.margin_top = min_margin
self.page.setViewportSize(QSize(self.doc.width(), self.doc.height()))
self.render_queue = items
self.total_items = len(items)
mt, mb = map(self.doc.to_px, (opts.margin_top, opts.margin_bottom))
self.margin_top, self.margin_bottom = map(lambda x:int(floor(x)), (mt, mb))
self.painter = QPainter(self.doc)
self.doc.set_metadata(title=pdf_metadata.title,
author=pdf_metadata.author,
tags=pdf_metadata.tags)
self.doc_title = pdf_metadata.title
self.doc_author = pdf_metadata.author
self.painter.save()
try:
if self.cover_data is not None:
p = QPixmap()
p.loadFromData(self.cover_data)
if not p.isNull():
self.doc.init_page()
draw_image_page(QRect(*self.doc.full_page_rect),
self.painter, p,
preserve_aspect_ratio=self.opts.preserve_cover_aspect_ratio)
self.doc.end_page()
finally:
self.painter.restore()
QTimer.singleShot(0, self.render_book)
if self.loop.exec_() == 1:
raise Exception('PDF Output failed, see log for details')
if self.toc is not None and len(self.toc) > 0:
self.doc.add_outline(self.toc)
self.painter.end()
if self.doc.errors_occurred:
raise Exception('PDF Output failed, see log for details')
def render_book(self):
if self.doc.errors_occurred:
return self.loop.exit(1)
try:
if not self.render_queue:
self.loop.exit()
else:
self.render_next()
except:
self.logger.exception('Rendering failed')
self.loop.exit(1)
def render_next(self):
item = unicode(self.render_queue.pop(0))
self.logger.debug('Processing %s...' % item)
self.current_item = item
load_html(item, self.view)
def render_html(self, ok):
if ok:
try:
self.do_paged_render()
except:
self.log.exception('Rendering failed')
self.loop.exit(1)
return
else:
# The document is so corrupt that we can't render the page.
self.logger.error('Document cannot be rendered.')
self.loop.exit(1)
return
done = self.total_items - len(self.render_queue)
self.report_progress(done/self.total_items,
_('Rendered %s'%os.path.basename(self.current_item)))
self.render_book()
@property
def current_page_num(self):
return self.doc.current_page_num
def load_mathjax(self):
evaljs = self.view.page().mainFrame().evaluateJavaScript
mjpath = P(u'viewer/mathjax').replace(os.sep, '/')
if iswindows:
mjpath = u'/' + mjpath
if evaljs('''
window.mathjax.base = %s;
mathjax.check_for_math(); mathjax.math_present
'''%(json.dumps(mjpath, ensure_ascii=False))).toBool():
self.log.debug('Math present, loading MathJax')
while not evaljs('mathjax.math_loaded').toBool():
self.loop.processEvents(self.loop.ExcludeUserInputEvents)
evaljs('document.getElementById("MathJax_Message").style.display="none";')
def get_sections(self, anchor_map):
sections = {}
ci = os.path.abspath(os.path.normcase(self.current_item))
if self.toc is not None:
for toc in self.toc.flat():
path = toc.abspath or None
frag = toc.fragment or None
if path is None:
continue
path = os.path.abspath(os.path.normcase(path))
if path == ci:
col = 0
if frag and frag in anchor_map:
col = anchor_map[frag]['column']
if col not in sections:
sections[col] = toc.text or _('Untitled')
return sections
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')
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()
evaljs('''
py_bridge.__defineGetter__('value', function() {
return JSON.parse(this._pass_json_value);
});
py_bridge.__defineSetter__('value', function(val) {
this._pass_json_value = JSON.stringify(val);
});
document.body.style.backgroundColor = "white";
paged_display.set_geometry(1, %d, %d, %d);
paged_display.layout();
paged_display.fit_images();
py_bridge.value = book_indexing.all_links_and_anchors();
'''%(self.margin_top, 0, self.margin_bottom))
amap = self.bridge_value
if not isinstance(amap, dict):
amap = {'links':[], 'anchors':{}} # Some javascript error occurred
sections = self.get_sections(amap['anchors'])
col = 0
if self.header:
self.bridge_value = self.header
evaljs('paged_display.header_template = py_bridge.value')
if self.footer:
self.bridge_value = self.footer
evaljs('paged_display.footer_template = py_bridge.value')
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()
while True:
if col in sections:
self.current_section = sections[col]
self.doc.init_page()
if self.header or self.footer:
evaljs('paged_display.update_header_footer(%d)'%self.current_page_num)
self.painter.save()
mf.render(self.painter)
self.painter.restore()
nsl = evaljs('paged_display.next_screen_location()').toInt()
self.doc.end_page()
if not nsl[1] or nsl[0] <= 0:
break
evaljs('window.scrollTo(%d, 0); paged_display.position_header_footer();'%nsl[0])
if self.doc.errors_occurred:
break
col += 1
if not self.doc.errors_occurred:
self.doc.add_links(self.current_item, start_page, amap['links'],
amap['anchors'])
def run_for_a_time(self, timeout):
final_time = time.time() + timeout
loop = QEventLoop(self)
while time.time() < final_time:
if not loop.processEvents():
time.sleep(0.1)