[PyQt] sent javascript code when opening website
Peter Irbizon
peterirbizon at gmail.com
Mon Mar 31 17:03:08 BST 2014
and I forgot to mention - my javascript pyqt code should be called so it
will override values for javascript functions in page - for example when I
use alert(navigator.appCodeName) in my website, it should print new value
from my pyqt code.
I would like somehow "imprint" my pyqt javascript functions to page for
doing this.
thank you very much.
2014-03-31 17:33 GMT+02:00 Peter Irbizon <peterirbizon at gmail.com>:
> Hi Robert,
>
> great! Thank you very much it works. :)
>
> But I tried to extend it with javascript function something like:
> (function () {
> var new_navigator = window.navigator;
> delete window.navigator;
> window.navigator = {
> appCodeName: "Myownname",
> appName: "Myownappname",
> appVersion: "5.0 (Windows;)",
> language: "en",
> };
> })();
>
> I think in my case it would be better to run javascript from files (local
> or remote files): include jquery file(s) and my function.js file.
>
> Can you please let me know how to achieve this.
> Many thanks,
> Peter
>
>
> 2014-03-29 13:14 GMT+01:00 Robert Kent <rob at gulon.co.uk>:
>
> Hi Peter,
>>
>> Try the following code for your browser:
>>
>> #!/usr/bin/env python
>>
>> import re
>> import sip
>> sip.setapi('QVariant',2)
>> sip.setapi('QString',2)
>>
>> from PyQt4.QtCore import *
>> from PyQt4.QtGui import *
>> from PyQt4.QtWebKit import *
>> from PyQt4.QtNetwork import *
>>
>> class WebPage(QWebPage):
>> def __init__(self, parent=None, **kwargs):
>> QWebPage.__init__(self, parent, **kwargs)
>>
>> self.useragent = "Mozilla/4.0 (compatible; MSIE 7.0; Linux)"
>>
>> def setUserAgent(self, agent):
>> if agent=="default": self.useragent = "Mozilla/5.0 (Linux; U;
>> Linux; en-US; rv:1.9.2.28) Gecko/20120306 Firefox/3.6.28"
>> else: self.useragent = agent
>>
>> def userAgentForUrl(self, url): return self.useragent
>>
>> class MainWindow(QMainWindow):
>> def __init__(self, url, parent=None, **kwargs):
>> QMainWindow.__init__(self, parent, **kwargs)
>>
>> self._url=url
>>
>> self._regexps={
>> 'cookie':
>> re.compile(r'(?P<cookie_name>\S*?)\s*=\s*(?P<cookie_value>\S*?);', re.I |
>> re.DOTALL)
>> }
>>
>> cookieBase=QNetworkCookie("", "")
>> self._cookies=cookieBase.parseCookies("")
>>
>> cookieInput="acookie=a; bcookie=b; ccookie=c;"
>> for name,value in self._regexps['cookie'].findall(cookieInput):
>> self._cookies.append(QNetworkCookie(name,value))
>>
>> self._cookieJar=QNetworkCookieJar(self)
>>
>> self._networkManager=QNetworkAccessManager(self)
>> self._networkManager.setCookieJar(self._cookieJar)
>> self._networkManager.sslErrors.connect(self.onSslErrors)
>>
>> self._webPage=WebPage(self)
>> self._webPage.setUserAgent('default')
>> self._webPage.setNetworkAccessManager(self._networkManager)
>>
>> self._webView=QWebView(self, loadFinished=self.loadFinished)
>> self._webView.setPage(self._webPage)
>>
>> self._webView.settings().setAttribute(QWebSettings.PluginsEnabled,True)
>> self._webView.load(QUrl(self._url))
>> self.setCentralWidget(self._webView)
>>
>> @pyqtSlot(QNetworkReply, list)
>> def onSslErrors(self, reply, errors):
>> url=reply.url().toString()
>> reply.ignoreSslErrors()
>> print "SSL certificate error ignored: %s" % url
>>
>> @pyqtSlot(bool)
>> def loadFinished(self, ok):
>> if not ok: return
>> self._webPage.mainFrame().evaluateJavaScript('alert("Hello!");')
>>
>> if __name__ == "__main__":
>> from sys import argv, exit
>>
>> a=QApplication(argv)
>> m=MainWindow("http://www.facebook.com/")
>> m.show()
>> m.raise_()
>> exit(a.exec_())
>>
>> I've restructured and tidied up your example a little, but it still does
>> the same thing. The part I've added is executing JavaScript when the page
>> is loaded. I've connected a slot 'loadFinished' to the QWebView's signal of
>> the same name which calls the main frames 'evaluateJavaScript' method.
>>
>> Hope this helps and does what you want,
>>
>> Rob
>>
>> From: Peter Irbizon <peterirbizon at gmail.com>
>> Date: Friday, 28 March 2014 23:58
>> To: <pyqt at riverbankcomputing.com>
>> Subject: [PyQt] sent javascript code when opening website
>>
>> Hi it's me again :)
>> please how can I send javascript code when opening website with py below?
>> I need to execute function sample (){ alert('hello');} when site is
>> loaded.
>>
>> here is my python code for simple webbrowser:
>>
>> #!/usr/bin/env pythonimport reimport sys
>> import PyQt4from PyQt4 import QtCore, QtGui ,QtWebKitfrom PyQt4 import uicfrom PyQt4.QtCore import *from PyQt4.QtGui import *from PyQt4.QtWebKit import *from PyQt4.QtNetwork import *from PyQt4.QtCore import SIGNAL, QUrl, QString, Qt, QEventfrom PyQt4.QtCore import QSize, QDateTime, QPointfrom PyQt4.QtGui import QApplication, QImage, QPainterfrom PyQt4.QtGui import QCursor, QMouseEvent, QKeyEventfrom PyQt4.QtNetwork import QNetworkCookie, QNetworkAccessManagerfrom PyQt4.QtNetwork import QNetworkCookieJar, QNetworkRequest, QNetworkProxyfrom PyQt4.QtWebKit import QWebPage, QWebView
>>
>> class WebPage(QWebPage):
>> def __init__(self, user_agent):
>> QWebPage.__init__(self)
>> # set user agent
>> self.user_agent = user_agent
>>
>> def userAgentForUrl(self, url):
>> #~ return self.user_agent
>> return QString(QByteArray(self.user_agent))
>>
>> def javaScriptAlert(self, frame, message):
>> """Override default javascript alert popup
>> """
>> print 'Alert:', message
>>
>> class IEWinApp:
>> def __init__(self,url):
>> self.url=url
>> self.REGEXPS = \
>> {
>> 'cookie':re.compile(r'(?P<cookie_name>\S*?)\s*=\s*(?P<cookie_value>\S*?);', re.I | re.DOTALL)
>> }
>> cookie_input = "acookie=a; bcookie=b; ccookie=c;"
>> #~ self.current = "http://www.useragentstring.com/"
>> cookiebase = QNetworkCookie("","")
>> self.cookies = cookiebase.parseCookies("")
>>
>> for cookiename,cookievalue in self.REGEXPS['cookie'].findall(cookie_input):
>> cookie_tmp = QNetworkCookie(QByteArray(cookiename),QByteArray(cookievalue))
>> self.cookies.append(cookie_tmp)
>>
>> self.cookiejar = QNetworkCookieJar()
>> #~ self.cookiejar.setCookiesFromUrl(self.cookies, QUrl(self.current))
>> self.network_manager = QNetworkAccessManager()
>> self.network_manager.setCookieJar(self.cookiejar)
>> self.network_manager.sslErrors.connect(on_ssl_errors)
>> #~ self.window = WebBrowser()
>> self.page = IEWinPage()
>>
>> #~ agent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)1"
>> agent="default"
>> self.page.setUserAgent(agent)
>> self.page.setNetworkAccessManager(self.network_manager)
>>
>> self.frame = self.page.mainFrame()
>> #~ self.window.webView.setPage(self.page)
>> self.webView=QWebView()
>>
>>
>> self.webView.setPage(self.page)
>> self.webView.settings().setAttribute(QtWebKit.QWebSettings.PluginsEnabled,True)
>> #~ self.frame.load(QUrl(self.current))
>> self.webView.load(QUrl(self.url))
>> #~ self.window.show()
>>
>> self.webView.show()def on_ssl_errors(reply, errors):
>>
>> url = unicode(reply.url().toString())
>> reply.ignoreSslErrors()
>> print "SSL certificate error ignored: %s" % url
>>
>> class IEWinPage(QWebPage):
>> def __init__(self):
>> QWebPage.__init__(self)
>> self.useragent = "Mozilla/4.0 (compatible; MSIE 7.0; Linux)"
>>
>> def setUserAgent(self, agent):
>> if agent=="default":
>> self.useragent = "Mozilla/5.0 (Linux; U; Linux; en-US; rv:1.9.2.28) Gecko/20120306 Firefox/3.6.28"
>> else:
>> self.useragent = agent
>>
>> def userAgentForUrl(self, url):
>>
>> return QString(QByteArray(self.useragent))if __name__ == "__main__":
>>
>> app = QApplication(sys.argv)
>>
>> url= "http://facebook.com"
>>
>> win = IEWinApp(url)
>> sys.exit( app.exec_() )
>>
>> _______________________________________________ PyQt mailing list
>> PyQt at riverbankcomputing.com
>> http://www.riverbankcomputing.com/mailman/listinfo/pyqt
>>
>
>
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