QtWebKit - how to get information about <label> element on which user clicked

guziemic

Hi,

I have such web page

@
<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xml:lang="de" lang="de"><head>
<title>Form test</title>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
</head>
<body>
<form action="../PChecker" method="get">
<br><br><label for="male">Male</label>
<input class="noborder" name="radiobuttonMH" value="male" type="radio" id="male">
<br><label for="female">Female</label>
<input class="noborder" name="radiobuttonMH" value="female" type="radio" id="female">
<br>
</form></body></html>
@

That in browser looks following
!http://i1177.photobucket.com/albums/x353/michal_g81/picture.png(Picture)!

And now my problem:
User click on for instance Female to select radio button. This is label in HTML code. I would like to be able to get this element as QWebElement.
So I did following
@
void CWebView::mousePressEvent(QGraphicsSceneMouseEvent * a_pMouseEvent)
{
QWebFrame * pFrame = m_oPage.frameAt(a_pMouseEvent->pos().toPoint());
QWebHitTestResult oHitResult = pFrame->hitTestContent(a_pMouseEvent->pos().toPoint());
QWebElement oWebElement = a_oHitResult.element();

if (oWebElement.isNull())
{
    //and the element is always NULL
}
else
{
    //Do some action
 }

}
@

Unfortunetly, I always have information that element is NULL. When I directly clicked on circle that it is OK.

For simplicity I did not put here checking of pointers i.e. to frame and so on.

Do you have an idea what can be wrong? How to get <label> as a QWebElement when the user click on it.

Thanks.

KA51O

Did you check if the position of the mouse cursor returned by a_pMouseEvent->pos().toPoint() is correct?

guziemic

Yes, position is correct.
I can get HTML code from frame. I have also information about size (QRect) of element under cursor. Even if this element is NULL.

KA51O

Hmmm. Maybe the QWebElement of your label is interpreted as a null element. I had some trouble once appending stuff inside a QWebElement of a <header> (QWebElement::appendInside(..)), nothing was appended because the element was interpreted as a null element.

guziemic

Yes, I put this information that my <label> is interpreted as a null element. And I cannot understand why?

guziemic

I look at problem also from other perspective. QWebElement from QWebHitTestResult can give information about size of element on which user make a click. I used this size to check if such element is on page.

@
QWebElementCollection labelsCollection = a_pWebFrame->findAllElements("label");
if (0 == labelsCollection.count())
{
//lack of labels
}
else
{
foreach (QWebElement element, labelsCollection)
{
QRect modification = element.geometry();
modification.adjust(0,1,0,0); //add 1 to y axis, because geometry returns smaller size than real geometry

    //a_elementRect is rectangle from hit test
    if (a_elementRect == modification)
    {
       retValElement = element; //we have label that was previously null
        break;
    }
}

}
@

I am able to find <label> in such way and after assignment to QWebElement I can do all operation on it, as it is not null element.

I used it as a workaround, but I do not think that it is a perfect solution.