[Interest] QQmlApplicationEngine's rootObject() returns 0 objects count when trying to import of JavaScript file from Remote Server

[Alejandro Exojo]

El Friday 14 November 2014, ashish dabhade escribió:
> No need to click even. It happens during load. Loading locally works as
> expected. The JS file is proper. Just a single function in it

I have to admit my ignorance respect network transparency with Qt Quick, but 
I've searched a bit and I've found:

- QML files are network transparent, but you load a directory, and on the 
server you need the corresponding "qmldir" file to have the proper file loaded.
- JS should be network transparent as well, but the only examples I've found 
make use of a remote QML file that loads a relative JS file (that then resolves 
to the network).
- I've found no examples or tests in the qtdeclarative repository that import 
a JS file from the network like in your example.


*However*, I tried runing the example with "qml" instead of "qmlscene" and it 
works fine.

$ cat /var/www/sample.js 
.pragma library

function myFunction() {
    var d = new Date();
    return d.toString();
}

$ cat test.qml
import QtQuick 2.3
import "http://localhost/sample.js" as Remote

Rectangle {
    width: 360
    height: 360
    MouseArea {
        anchors.fill: parent
        onClicked: {
            console.log(Remote.myFunction());
       }
    }
    Text {
        anchors.centerIn: parent
        text: "Hello World"
    }
}


The "qml" program (a.k.a. "QML runtime") is something that I really can't 
explain properly, and is very hard to search for in the docs. Here is a talk 
by Alan Alpert introducing it:

https://www.youtube.com/watch?v=2nnrl1v7LcE

Hopefully someone with more knowledge can explain the issue.

-- 
Alex (a.k.a. suy) | GPG ID 0x0B8B0BC2
http://barnacity.net/ | http://disperso.net