"""
This module contains a child class of QWebView in order to reimplement the wheelEvent event handler.
"""
from PyQt4 import QtCore, QtWebKit

class CWebView(QtWebKit.QWebView):
    """
    This is a reimplementation of QWebView in order to override the wheelEvent method.
    """
    onScroll = QtCore.pyqtSignal()

    def wheelEvent(self, event):
        self.onScroll.emit()
        QtWebKit.QWebView.wheelEvent(self, event)