My desired output is function foo() { var l = 2+2; }.

Answering my own question. By multiplying the drawImage coordinates by the zoom factor helped to solve it. Is this a bug of QML or something that I have read from the documentation?

I found the solution. Not only can you call the HTML5 postMessage() API to pass messages back and form from/to the IFRAME to the parent document, but Qt's version of WebKit have lax security controls compared to Chrome and do allow you to do the following in the IFRAME's Javascript. The trick is the window.parent.[whatever] -- something that Chrome won't let you do with stuff accessed with file:// (local files). $(document).ready(function(){ if (window.parent.cpp) { var cpp = window.parent.cpp; // do something with C++ here through the cpp object } });

Good news! My use case is actually well covered by simply using a regular .import "thing.js" as Thing. I don't need the specific namespace-less behavior of Qt.include; I just happened to miss .import when reading the doc, thus failing to understand that Qt.include is only a second import mechanism to be used instead of .import under very specific (documented) circumstances. → Doc might still deserve clarification of the async behavior, but my initial problem is gone with using .import. I updated the QTBUG

@jramm, signals are methods. You can declare a signal as Q_INVOKABLE and call it from JS.

@dcape yeah, you're absolutely right. thanks for your efforts. I was thinking about conflicts and checked widthChanged() with auto-completion - this is why i decided not to change the title of js function. Thanks, again ;)

Obrigado TioRoy... vou testar e depois mostro os resultados...

I managed using the following additional lines in CustomCode QString function = "test(1)"; QJSValue testfunction = myEngine.evaluate(function); qDebug() << testfunction.toString(); With my script CustomLogic.qs looking like this: function test(x) { var a = "tested!"; a = a + x.toString(); return a; } Returns "tested!1" in the application output

You should be able to do this declaratively, by declaring either: width: image.width OR width: childrenRect.width for the "element" column. Note that this will "bind" the values. Binding is automatic in QML declarations. If you wish to bind from an imperative statement (ie, from within a JavaScript function) you can use: width = Qt.binding(function() { image.width }); Hope this helps!

Hi. I'm not sure I understand what you mean, but take a look here: http://doc.qt.io/qt-5/qtqml-javascript-imports.html#imports-within-javascript-resources It might help.

Ohh. Sounds great!! Thank you for adding some new things in my knowledge base. :)

I am having more issues in it. When I run this on my andorid devices. It runs fine for teh forst time, but after that it shows me below error- I/chromium(17111): [INFO:CONSOLE(16)] "WebSocket connection to 'ws://127.0.0.1:12345/' failed: Error in connection establishment: net::ERR_CONNECTION_REFUSED" Can someone help me ?

I found a bug from 2009 about the same problem: https://code.google.com/p/chromium/issues/detail?id=13175