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POOverride shouldInterruptJavaScript in QWebPage with PySide
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  1. POOverride shouldInterruptJavaScript in QWebPage with PySide
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    copied!<p>I would like to override PySide.QtWebKit.QWebPage.shouldInterruptJavaScript() slot to silently ignore JavaScript interrupt requests. I have my own timeout timer setup and I do not need a default message dialog.</p> <p>Quoting PySide <a href="http://www.pyside.org/docs/pyside/PySide/QtWebKit/QWebPage.html#PySide.QtWebKit.PySide.QtWebKit.QWebPage.shouldInterruptJavaScript" rel="nofollow">documentation</a>:</p> <blockquote> <p>Because of binary compatibility constraints, this function is not virtual. If you want to provide your own implementation in a PySide.QtWebKit.QWebPage subclass, reimplement the QWebPage.shouldInterruptJavaScript() slot in your subclass instead. QtWebKit will dynamically detect the slot and call it.</p> </blockquote> <p>This is an example code I wrote, but my shouldInterruptJavaScript() method is never called. I see the same code used in PhantomJS and webscraping open source projects.</p> <pre><code>import sys from PySide import QtCore from PySide.QtGui import QApplication from PySide.QtWebKit import QWebPage class QWebPageHeadless(QWebPage): # FIXME: This is not working, the slot is not overriden! @QtCore.Slot() def shouldInterruptJavaScript(self): print "Interrupt javascript request ignored..." return False if __name__ == "__main__": app = QApplication(sys.argv) page = QWebPageHeadless() page.mainFrame().setHtml('&lt;script&gt;while(1);&lt;/script&gt;') sys.exit(app.exec_()) </code></pre> <p>I have Python 2.7.1, PySide 1.0.2, Qt 4.7.2. Right now I am building the latest PySide so I can test it, but I can not find anything about shouldInterruptJavaScript in recent release notes or bug reports.</p> <p><strong>Is there something special how should I reimplement shouldInterruptJavaScript in my subclass?</strong></p>
 

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