How to detect a click on a form reset button from QtWebKit? - qtwebkit

Question

Looking at the signals in the QtWebKit API, I failed to find anything that would seem to me to be what I am looking for.
QWebView
linkClicked() seems to be the closest, but a reset button is no link, and definitely does not point to an URL.
QWebPage
I considered the following signals (judging by their name), but according to their description none of them match my purpose either: contentsChanged(), contentsChanged(), contentsChanged(), selectionChanged().
QWebFrame
None of its signals matches my purpose.
QWebElement
Here I can see how to get an object representing the button(s), but it has no signals whatsoever.
I want to catch a click in a reset button in order to store the data in the form before it gets cleared, so it can be restored later.
For now, I did manage to retrieve the buttons as a QWebElementCollection of QWebElement objects, and I can modify them, but I do not know how to get them to send a signal upon click, or something similar.
// Get reset buttons.
QWebElementCollection inputResets = mainFrame()->documentElement().findAll("input[type=reset]");
inputResets += mainFrame()->documentElement().findAll("button[type=reset]");
// Change their text (just a test).
foreach(QWebElement element, inputResets)
{
element.setPlainText("Worked!");
}

Answer 1

Well, I got it working with this, although I do not think it is the best approach:
bool EventFilter::eventFilter(QObject* object, QEvent* event)
{
if (event->type() == QEvent::MouseButtonRelease)
{
QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
if (mouseEvent->button() == Qt::LeftButton)
{
QWebView *view = dynamic_cast<QWebView*>(object);
QPoint pos = view->mapFromGlobal(mouseEvent->globalPos());
QWebFrame *frame = view->page()->frameAt(mouseEvent->pos());
if (frame != NULL)
{
// Get the existing reset buttons.
QWebElementCollection inputResets = frame->documentElement().findAll("input[type=reset]");
inputResets += frame->documentElement().findAll("button[type=reset]");
// Check if any of them is at the clicked position.
foreach(QWebElement element, inputResets)
{
if (element.geometry().contains(pos))
{
qDebug() << "Clicked element tag:" << element.localName();
return QObject::eventFilter(object, event);
}
}
}
}
}
return QObject::eventFilter(object, event);
}

Answer 2

You can probably accomplish this with Qt WebKit Bridge.