'[PyQt] Custom webkit protocol example not working anymore?'

[prev in list] [next in list] [prev in thread] [next in thread] 

List: pykde
Subject: [PyQt] Custom webkit protocol example not working anymore?
From: Henning_Schröder <henning.schroeder () gmail ! com>
Date: 2012-01-30 12:09:05
Message-ID: CAOZLMt-jVcYBRLwQFBiN5b6yvEgvbFNoY5oizhreXwv7U-QTzQ () mail ! gmail ! com
[Download RAW message or body]

[Attachment #2 (multipart/alternative)]

Hello,
I tried
http://diotavelli.net/PyQtWiki/Using%20a%20Custom%20Protocol%20with%20QtWebKit
(I attached the code).
Unfortunately I do not see anything on the page after clicking the link
with the new protocol.
Has anything changed or is it a bug in the version I used (PyQt 4.8.3, sip
4.12.1) ?

Regards
Henning

[Attachment #5 (text/html)]

Hello,<br>I tried <a \
href="http://diotavelli.net/PyQtWiki/Using%20a%20Custom%20Protocol%20with%20QtWebKit"> \
http://diotavelli.net/PyQtWiki/Using%20a%20Custom%20Protocol%20with%20QtWebKit</a><br>(I \
attached the code).<br>Unfortunately I do not see anything on the page after clicking \
the link with the new protocol.<br>

Has anything changed or is it a bug in the version I used (PyQt 4.8.3, sip 4.12.1) ? \
 Regards Henning

--20cf30776079b02b6c04b7bdb780--

["testwkprotocol.py" (text/x-python)]

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Code from http://www.diotavelli.net/PyQtWiki/Using%20a%20Custom%20Protocol%20with%20QtWebKit
import sys

from PyQt4.QtCore import QTimer, QVariant, SIGNAL
from PyQt4.QtGui import *
from PyQt4.QtNetwork import QNetworkAccessManager, QNetworkRequest, QNetworkReply
from PyQt4.QtWebKit import QWebView

html = """<html>
<head>
<title>Test page for the download:// scheme</title>
</head>
<body>
<h1>Downloads</h1>

<a href="download://myfile">Download a file</a>

<hr />
<a href="http://www.google.com">A normal link</a>
</body>
</html>

"""

class DownloadReply(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, QVariant("text/html; charset=ASCII"))
        self.setHeader(QNetworkRequest.ContentLengthHeader, QVariant(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

    def isSequential(self):
        return True

    def readData(self, maxSize):
        print "readData called with", maxSize    
        print "offset is", self.offset
        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

class NetworkAccessManager(QNetworkAccessManager):

    def __init__(self, old_manager):

        QNetworkAccessManager.__init__(self)
        self.old_manager = old_manager
        self.setCache(old_manager.cache())
        self.setCookieJar(old_manager.cookieJar())
        self.setProxy(old_manager.proxy())
        self.setProxyFactory(old_manager.proxyFactory())

    def createRequest(self, operation, request, data):

        if request.url().scheme() != "download":
            return QNetworkAccessManager.createRequest(self, operation, request, data)

        if operation == self.GetOperation:
            # Handle download:// URLs separately by creating custom
            # QNetworkReply objects.
            reply = DownloadReply(self, request.url(), self.GetOperation)
            return reply
        else:
            return QNetworkAccessManager.createRequest(self, operation, request, data)

if __name__ == "__main__":

    app = QApplication(sys.argv)
    view = QWebView()

    old_manager = view.page().networkAccessManager()
    new_manager = NetworkAccessManager(old_manager)
    view.page().setNetworkAccessManager(new_manager)

    view.setHtml(html)
    view.show()
    sys.exit(app.exec_())

_______________________________________________
PyQt mailing list    PyQt@riverbankcomputing.com
http://www.riverbankcomputing.com/mailman/listinfo/pyqt

[prev in list] [next in list] [prev in thread] [next in thread] 