How to return a Javascript object to Javascript environment?

[cysin]

I am currently working on this topic: http://doc.qt.nokia.com/4.7-snapshot...it-bridge.html

So I am wondering how to return a JS object to JS environment? Is there an example?

[wysota]

Would you care to elaborate?

[cysin]

what you mean elaborate? I need some details about how to return an object, better with an example

[wysota]

The description of your problem is unclear. Elaborate on the problem please.

[cysin]

Sorry my English is not that good.

I am currently adding an object like this

ui->webView->page()->mainFrame()->addToJavaScriptWindowObject(QString("myjsobj"), myjsobj)

ui->webView->page()->mainFrame()->addToJavaScriptWindowObject(QString("myjsobj"), myjsobj)

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So I can access C++ class from Javascript environment. And also I want this class could return an object.

Let's say, the C++ class has a function called "getItem()", so I can access this function using Javascript:

var item = myjsobj.getItem();
alert(item.getName());
alert(item.getPrice());

var item = myjsobj.getItem();
alert(item.getName());
alert(item.getPrice());

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I want "getItem()" function to return another object, this object might be dynamically generated.

Thank you~

[wysota]

Ok but what is it exactly that you tried and didn't work? I still fail to see the problem...

[cysin]

Ok but what is it exactly that you tried and didn't work? I still fail to see the problem...

QObjectList pcp::getObjectArray() {
    js_pqm* pqm1 = new js_pqm(w);
    pqm1->setObjectName(QString("iampqm1"));
    js_pqm* pqm2 = new js_pqm(w);
    pqm2->setObjectName(QString("iampqm2"));
    QObjectList objArray;
    objArray.push_back(pqm1);
    objArray.push_back(pqm2);
    return objArray;
}

QObjectList pcp::getObjectArray() {
    js_pqm* pqm1 = new js_pqm(w);
    pqm1->setObjectName(QString("iampqm1"));
    js_pqm* pqm2 = new js_pqm(w);
    pqm2->setObjectName(QString("iampqm2"));
    QObjectList objArray;
    objArray.push_back(pqm1);
    objArray.push_back(pqm2);
    return objArray;
}

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This is a function of the C++ class that maps to javascript array. I want this function to return a javascript array that contains javascript object. but it failed to recongnize the returned 'QObjectList', said "TypeError: cannot call getObjectArray(): unknown type `QObjectList' on line:35

So I am wondering what Qt type this function should return to make JS engine recognize them correctly

thanks

[wysota]

There is an automatic mapping scheme between Qt/C++ types and javascript types. See the page you quoted in your first post for details.

[cysin]

There is an automatic mapping scheme between Qt/C++ types and javascript types. See the page you quoted in your first post for details.

But, what's wrong with my posted code? It should return an array contains objects

[wysota]

It's likely that something is not registered somewhere. It's really hard to say anything useful if you just keep sending unrelated pieces of code. Provide a minimal compilable example reproducing the problem.