QML script provider similar to image provider

harchu

Ok. but how do i make Qt/QML use this code to download the file? Can it be done via a plugin?
I want to be able to use this custom code when someone writes:
import "some-uri" as Remote
At this point it should get the file using my plugin.

p3c0

bq. but how do i make Qt/QML use this code to download the file?

From C++ did you check the examples of QNetworkAccessManager::get ?

You can call C++ functions from QML. Check "qtqml-cppintegration-topic":http://qt-project.org/doc/qt-5/qtqml-cppintegration-topic.html and especially "qtqml-cppintegration-exposecppattributes":http://qt-project.org/doc/qt-5/qtqml-cppintegration-exposecppattributes.html
I'm not sure about the plugin as I have never used one.

harchu

@p3c0: Thanks. I get how to use the QNetworkAccessManager to download the file. But I need to be able to run this code whenever someone uses the import statement for external javascript files. Sorry for not being clear before.

p3c0

Well then check "registering-an-instantiable-object-type":http://qt-project.org/doc/qt-5/qtqml-cppintegration-definetypes.html#registering-an-instantiable-object-type. Create a Q_INVOKABLE function in it where you download the file then you can call this function from QML after instantiating it.

harchu

@p3c0: I am not able to get the example you stated above to work actually

import "http://192.168.0.16/sample.js" as Remote

I have my own node.js file server running on 8030 which i am trying to access using the below import statement:

import "http://127.0.0.1:8030/testbrowser.js" as Browser

Sometimes it does send a request to my server and my server correctly responds too, but the app then exits for some reason. do you know why that is?

thanks,
Rohit

p3c0

Sorry but i haven't used node.js. I have used it with particularly simple example like few JavaScript functions in sample.js and it works as expected.

harchu

Actually node.js is not the issue here..as the server does work when i try to access the file in the browser.
Do you know why the download would not work in QML? My app exits with an exit code 255.
Thanks

p3c0

Can you try with some simple Javascript file which will contain just a few functions ?

harchu

i tried with an empty javascript file too and it did not seem to work

p3c0

I tested it with apache server and it worked. The js file contains a simple function which returns a string.

sample.js
@
function myFunction() {
return "Hello Qt"
}
@

and the from QML
@
import "http://192.168.1.3/sample.js" as Remote
...
//and on some Button click calling it as
Remote.myFunction()
@

harchu

It seems to work when I create a Qt Quick Application project from Qt Creator and try to import the javascript file from the node js server.

However the import fails when I create a Qt Quick UI project. Is there a way to enable this behavior in a Qt Quick UI project?