# -*- coding: utf-8 -*-
import sys
from PyQt4 import QtGui, QtCore
from Ui_WebView import Ui_Form
import urlparse
import datetime

class Form(QtGui.QWidget):
    user_id=0
    access_token=None
    expires_at=None

    def __init__(self, parent=None):
        QtGui.QWidget.__init__(self, parent)
        self.parent=parent
        self.ui=Ui_Form()
        self.ui.setupUi(self)
        url="https://oauth.vk.com/authorize?client_id=4110671&scope=photos,offline,friends&redirect_uri=https://oauth.vk.com/blank.html&display=popup&v=5.27&response_type=token"
        self.ui.webView.load(QtCore.QUrl(url))
        self.ui.webView.urlChanged.connect(self.onUrlChange)

    def onUrlChange(self, qurl):
        fragment=str(qurl.fragment())
        if fragment:
            params=urlparse.parse_qs(fragment)
            if 'error' in params:
                pass
            self.access_token=params['access_token']
            self.user_id=int(params['user_id'])
            expires_in=int(params['expires_in'])
            if expires_in > 0:
                self.expires_at=datetime.datetime.now() + datetime.timedelta(seconds=expires_in)


if __name__ == '__main__':
    a=QtGui.QApplication(sys.argv)
    w=Form()
    w.show()
    a.exec_()