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Handle Ctrl-C when using jsbrowser a little better

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Kovid Goyal 2013-02-17 17:09:09 +05:30
parent c75b5d37d5
commit 24dff489a9
1 changed files with 17 additions and 2 deletions
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19
src/calibre/web/jsbrowser/browser.py
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@ -9,10 +9,11 @@ __docformat__ = 'restructuredtext en'
import os, pprint, time
from cookielib import Cookie
from threading import current_thread
from PyQt4.Qt import (QObject, QNetworkAccessManager, QNetworkDiskCache,
QNetworkProxy, QNetworkProxyFactory, QEventLoop, QUrl,
QDialog, QVBoxLayout, QSize, QNetworkCookieJar)
QNetworkProxy, QNetworkProxyFactory, QEventLoop, QUrl, pyqtSignal,
QDialog, QVBoxLayout, QSize, QNetworkCookieJar, Qt)
from PyQt4.QtWebKit import QWebPage, QWebSettings, QWebView, QWebElement
from calibre import USER_AGENT, prints, get_proxies, get_proxy_info
@ -128,6 +129,7 @@ class NetworkAccessManager(QNetworkAccessManager): # {{{
x.upper() for x in ('Head', 'Get', 'Put', 'Post', 'Delete',
'Custom')
}
report_reply_signal = pyqtSignal(object)
def __init__(self, log, use_disk_cache=True, parent=None):
QNetworkAccessManager.__init__(self, parent)
@ -143,6 +145,8 @@ class NetworkAccessManager(QNetworkAccessManager): # {{{
self.finished.connect(self.on_finished)
self.cookie_jar = QNetworkCookieJar()
self.setCookieJar(self.cookie_jar)
self.main_thread = current_thread()
self.report_reply_signal.connect(self.report_reply, type=Qt.QueuedConnection)
def on_ssl_errors(self, reply, errors):
reply.ignoreSslErrors()
@ -172,6 +176,17 @@ class NetworkAccessManager(QNetworkAccessManager): # {{{
data)
def on_finished(self, reply):
if current_thread() is not self.main_thread:
# This method was called in a thread created by Qt. The python
# interpreter may not be in a safe state, so dont do anything
# more. This signal is queued which means the reply wont be
# reported unless someone spins the event loop. So far, I have only
# seen this happen when doing Ctrl+C in the console.
self.report_reply_signal.emit(reply)
else:
self.report_reply(reply)
def report_reply(self, reply):
reply_url = unicode(reply.url().toString())
self.reply_count += 1