[PyQt] Qwebview crashes almost always when entering Facebook apps

[Gelonida]

Hi Pete,

Thanks for your quick reply and thanks for confirming my issue.

On 3/25/2011 12:21 AM, Hans-Peter Jansen wrote:
> On Thursday 24 March 2011, 23:52:53 Gelonida wrote:
>> Hi I have a rather small (mostly crashing) script with a
>> QWebViewwidget.
>>
>> # beginning of script
>> import sys
>> import platform
>> import PyQt4.QtGui as QtGui
>> import PyQt4.QtCore as QtCore
>> from PyQt4.QtWebKit import QWebView
>>
>> class MyMainWindow(QtGui.QMainWindow):
>>       def __init__(self, parent=None):
>>           super(MyMainWindow, self).__init__(parent)
>>           self.setWindowTitle("Simple Crasher")
>>           self.webview = QWebView()
>>           self.setCentralWidget(self.webview)
>>           # I tried with two face book apps so you can probably
>>           # reproduce with another facebook app
>>           urlstr ="http://apps.facebook.com/be-heroic"
>>           self.webview.setUrl(QtCore.QUrl(urlstr))
>>
>>
>> print sys.platform, platform.release()
>> print QtCore.PYQT_VERSION_STR,QtCore.PYQT_VERSION
>> app = QtGui.QApplication(sys.argv)
>> window = MyMainWindow()
>> window.show()
>> sys.exit(app.exec_())
>> # end of script
>>
>>
>> The url points to a facebook application.
>> I tried with the url in the sample script, but failed also with other
>> facebook applications.
>>
>> What happens:
>>
>> After starting the script a login screen shows up
>> (email address and password field in the top right corner of the
>> dispay) after a few seconds the layout changes and the emailaddress
>> and password field are in the middle of the screen
>>
>> I enter email address and password of my facebook account and click
>> on connect.
>>
>> In 90 % of the cases the script crashes without any python back trace
>> or error message.
>>
>>
>> Example output:
>> linux2 2.6.32-29-generic
>> 4.7.2 263938
>> Segmentation fault (core dumped)
>>
>> The application crashes also under windows where the output would be
>> win32 post2008Server
>> 4,7 263936
>>
>> Can anybody else reproduce this?
>
> Confirmed:
> python: 2.6
> sip: 4.12.1
> qt4: 4.6.3
> pyqt4: snapshot-4.8.4-278054fd857c
>
>
> Given the simpleness of your script, and since this happens deep
> under the covers in the javascript core, a *Qt* bugreport would be
> in order. That requires a C++ version, though. If that version works,
> then Phil is to blame, but I doubt that.


Well I must admit I never wrote C++ code with Qt

I'll have to check what exactly is needed to write is as pure C++ 
application.


>
> Leaving a pointer to the report here would be nice.
>
> Pete