--- a/WebBrowser/Network/QtHelpSchemeHandler.py Tue Sep 18 19:23:07 2018 +0200
+++ b/WebBrowser/Network/QtHelpSchemeHandler.py Wed Sep 19 19:50:10 2018 +0200
@@ -12,7 +12,8 @@
import mimetypes
import os
-from PyQt5.QtCore import pyqtSignal, QByteArray, QIODevice, QBuffer
+from PyQt5.QtCore import pyqtSignal, QByteArray, QIODevice, QBuffer, QTimer, \
+ QMutex, QMutexLocker
from PyQt5.QtWebEngineCore import QWebEngineUrlSchemeHandler, \
QWebEngineUrlRequestJob
@@ -118,19 +119,24 @@
"""
super(QtHelpSchemeReply, self).__init__(parent)
- url = job.requestUrl()
- strUrl = url.toString()
+ self.__job = job
+ self.__engine = engine
+ self.__mutex = QMutex()
self.__buffer = QBuffer()
+ # determine mimetype
+ url = self.__job.requestUrl()
+ strUrl = url.toString()
+
# For some reason the url to load maybe wrong (passed from web engine)
# though the css file and the references inside should work that way.
# One possible problem might be that the css is loaded at the same
# level as the html, thus a path inside the css like
# (../images/foo.png) might cd out of the virtual folder
- if not engine.findFile(url).isValid():
+ if not self.__engine.findFile(url).isValid():
if strUrl.startswith(QtDocPath):
- newUrl = job.requestUrl()
+ newUrl = self.__job.requestUrl()
if not newUrl.path().startswith("/qdoc/"):
newUrl.setPath("/qdoc" + newUrl.path())
url = newUrl
@@ -141,8 +147,18 @@
# do our own (limited) guessing
self.__mimeType = self.__mimeFromUrl(url)
- if engine.findFile(url).isValid():
- data = engine.fileData(url)
+ QTimer.singleShot(0, lambda: self.__loadQtHelpPage(url))
+
+ def __loadQtHelpPage(self, url):
+ """
+ Private method to load the requested QtHelp page.
+
+ @param url URL of the requested page
+ @type QUrl
+ """
+
+ if self.__engine.findFile(url).isValid():
+ data = self.__engine.fileData(url)
else:
data = QByteArray(self.tr(
"""<html>"""
@@ -150,12 +166,16 @@
"""<body><div align="center"><br><br>"""
"""<h1>The page could not be found</h1><br>"""
"""<h3>'{0}'</h3></div></body>"""
- """</html>""").format(strUrl)
+ """</html>""").format(url.toString())
.encode("utf-8"))
+ lock = QMutexLocker(self.__mutex)
self.__buffer.setData(data)
self.__buffer.open(QIODevice.ReadOnly)
+ lock.unlock()
+
self.open(QIODevice.ReadOnly)
+ self.readyRead.emit()
def bytesAvailable(self):
"""
@@ -164,6 +184,7 @@
@return number of available bytes
@rtype int
"""
+ lock = QMutexLocker(self.__mutex) # __IGNORE_WARNING__
return self.__buffer.bytesAvailable()
def readData(self, maxlen):
@@ -173,6 +194,7 @@
@param maxlen maximum number of bytes to read (integer)
@return string containing the data (bytes)
"""
+ lock = QMutexLocker(self.__mutex) # __IGNORE_WARNING__
return self.__buffer.read(maxlen)
def close(self):
