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Check for deletion before emitting signal to avoid runtime error when aborting with interrupt

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Kovid Goyal 2021-06-11 20:14:52 +05:30
parent 78fae037c9
commit 5279a3b5cd
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 6 additions and 4 deletions
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src/calibre/ebooks/pdf/html_writer.py
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@ -15,10 +15,11 @@ from html5_parser import parse
from io import BytesIO from io import BytesIO
from itertools import count, repeat from itertools import count, repeat
from qt.core import ( from qt.core import (
QApplication, QMarginsF, QObject, QPageLayout, Qt, QTimer, QUrl, pyqtSignal QApplication, QMarginsF, QObject, QPageLayout, Qt, QTimer, QUrl, pyqtSignal, sip
)
from qt.webengine import (
QWebEnginePage, QWebEngineProfile, QWebEngineUrlRequestInterceptor
) )
from qt.webengine import QWebEngineUrlRequestInterceptor
from qt.webengine import QWebEnginePage, QWebEngineProfile
from calibre import detect_ncpus, human_readable, prepare_string_for_xml from calibre import detect_ncpus, human_readable, prepare_string_for_xml
from calibre.constants import __version__, iswindows from calibre.constants import __version__, iswindows
@ -226,6 +227,7 @@ class Renderer(QWebEnginePage):
def printing_done(self, pdf_data): def printing_done(self, pdf_data):
self.working = False self.working = False
if not sip.isdeleted(self):
self.work_done.emit(self, bytes(pdf_data)) self.work_done.emit(self, bytes(pdf_data))
def convert_html_file(self, path, page_layout, settle_time=0, wait_for_title=None): def convert_html_file(self, path, page_layout, settle_time=0, wait_for_title=None):