If createRequest doesn't return a reply it crahes. So the complete solution is:
class MainWindow(QWebView):
def __init__(self, parent=None):
oldManager = self.page().networkAccessManager()
self.setPage(DebugWebPage()) #if you want to set a custom page
self.page().setNetworkAccessManager(NetworkAccessManager(self))
class NetworkAccessManager(QNetworkAccessManager):
def __init__(self, parent):
QNetworkAccessManager.__init__(self)
def createRequest(self, operation, request, data):
if request.url().scheme() != 'page':
return QNetworkAccessManager.createRequest(self, operation, request, data)
if operation == self.GetOperation:
# Handle page:// URLs separately by creating custom
# QNetworkReply objects.
reply = PageReply(self, request.url(), self.GetOperation)
print('here')
return reply
else:
return QNetworkAccessManager.createRequest(self, operation, request, data)
class PageReply(QNetworkReply):
def __init__(self, parent, url, operation):
QNetworkReply.__init__(self, parent)
self.content = '<html><head><title>Test</title></head><body>This is a test.</body></html>'
self.offset = 0
self.setHeader(QNetworkRequest.ContentTypeHeader, 'text/html; charset=utf-8')
self.setHeader(QNetworkRequest.ContentLengthHeader, len(self.content))
QTimer.singleShot(0, self, SIGNAL('readyRead()'))
QTimer.singleShot(0, self, SIGNAL('finished()'))
self.open(self.ReadOnly | self.Unbuffered)
self.setUrl(url)
def abort(self):
pass
def bytesAvailable(self):
return len(self.content) - self.offset + QNetworkReply.bytesAvailable(self)
def isSequential(self):
return True
def readData(self, maxSize):
if self.offset < len(self.content):
end = min(self.offset + maxSize, len(self.content))
data = self.content[self.offset:end]
self.offset = end
return data
Note: I don't really know why but any error while the script is in the network manager or the reply results in a segmentation fault.
Based on this with some correction.