QWebView evaluatejavascript argument

[A Former User]

Hello,

When using the evaluateJavaScript("someMethod()") in a QWebView, is it possible to use a callback instead of typing the method itself?

Ex.

On Qt:

@
void getMessage(const QString &callback) {
(...).evaluateJavaScript(callback(arg1, ...);
}
@

The callback function would be one within a js file, ex.:

@
function hello(arg1) {
alert(arg1);
}
@

The call in the HTML file would be:

@
*something.getMessage(hello);
@

As you see, the function called in the HTML file points the callback to the function Hello, but its arguments would come from Qt.

I have to use callback instead of typing the method itself. Any tips?

Thanks!

[A Former User]

looks more like a javascript problem and I think, there are no callbacks in Javascript.

[raven-worx]

since evaluateJavaScript() only takes 1 string as an argument how would that be possible?

But if it helps you can compose javascript inside javascript and execute it using "eval(...)":http://www.w3schools.com/jsref/jsref_eval.asp

[A Former User]

Hum?

I don't think you got it:

@
void Container::getEventInformation(const QString &eventId, const QString &callback)
{
// What it is now
view->page()->mainFrame()->evaluateJavaScript(QString("eventResult('%1','%2')").arg(eventId).arg(eventId));

// What I need: evaluate the callback function
// view->page()->mainFrame()->evaluateJavaScript(callback('%1','%2')).arg(x).arg(y));
}
@

To remember, callback is a javascript function.

But, it does not work. The evaluateJavaScript (callback) does not execute the callback function. So, is there a way to make it work?