QNetworkConfigurationManager and setContextProperty [answered]

Question

0

QNetworkConfigurationManager and setContextProperty [answered]

asked 2019-08-13 13:14:35 +0300

This post is a wiki. Anyone with karma >75 is welcome to improve it.

updated 2019-08-13 13:14:35 +0300

Tanghus
10524 ●85 ●118 ●125

https://github.com/tanghu...

I need to keep track on the state of connectivity, and wanted to use QNetworkConfigurationManager for that.

In the main c++ I have this (stripped down):

int main(int argc, char *argv[]) {
    QGuiApplication *app = SailfishApp::application(argc, argv);
    QQuickView *view = SailfishApp::createView();
    QNetworkConfigurationManager ncm;
    view->rootContext()->setContextProperty("ncm", &ncm);
    view->setSource(SailfishApp::pathTo("qml/harbour-currencyconverter.qml"));
    view->showFullScreen();
    return app->exec();
}

When I try to use it from QML as in console.log('From ncm:', ncm.isOnline()) it prints TypeError: Property 'isOnline' of object QNetworkConfigurationManager(0xffefeca8) is not a function

I looked at this, but as I see it I'm doing exactly like it and the documentation says - but I have been proven wrong many times ;)

edit retag flag offensive reopen delete

The question has been closed for the following reason "the question is answered, an answer was accepted" by Tanghus
close date 2019-08-13 22:53:40.190925

Accepted Answer

1

answered 2019-08-13 14:43:04 +0300

coderus

22985 ●253 ●337 ●370

https://coderus.openrepos...

isOnline is not Q_INVOKABLE or public slot, it can't be called from qml code

edit flag offensive delete publish link

Comments

Thanks again @coderus. I'll pursue another way. Actually we've been here before. You gave me hints on the same subject. I got the network dialog to open just fine, but the snippet you gave about network status, I couldn't get to work, and the search engines weren't any help. You wrote:

import org.freedesktop.contextkit 1.0

ContextProperty {
    id: networkOnline
    key: 'Network.Online'
}

Just to see if anything at all happens, I did a console.log('Network context', networkOnline) which in turn printed Can't open property "Network.Online" Sys: "No file" User: "No file".

I might as well be Swahili to me ;)

Tanghus ( 2019-08-13 16:44:36 +0300 )edit

You can check content of /run/state/namespaces

coderus ( 2019-08-13 16:51:56 +0300 )edit

Excellent! Progress :)

ContextProperty {
    id: networkOnline
    key: 'Internet.NetworkState'
}

Now I tried console.log('Network context', networkOnline.value, networkOnline.subscribed) which gives Network context undefined true. So there's some kind of contact. I have absolutely no idea, what I'm messing with here, so extra hints will be much appeciated :)

Tanghus ( 2019-08-13 17:54:20 +0300 )edit

I can see, I'm not the only one having problems with this ;)

https://github.com/wdehoog/donnie/blob/master/qml/donnie.qml#L297

Tanghus ( 2019-08-13 18:06:57 +0300 )edit

Forgot to mention, that I also tried networkOnline.subscribe(). It changed nothing and also returned undefined.

Tanghus ( 2019-08-13 18:32:22 +0300 )edit

QNetworkConfigurationManager and setContextProperty [answered]

The question has been closed for the following reason "the question is answered, an answer was accepted" by Tanghus
close date 2019-08-13 22:53:40.190925

1 Answer

Comments

Question tools

Stats

Related questions

QNetworkConfigurationManager and setContextProperty [answered]

The question has been closed for the following reason "the question is answered, an answer was accepted" by Tanghus close date 2019-08-13 22:53:40.190925

1 Answer

Comments

Question tools

Public thread

Stats

Related questions

The question has been closed for the following reason "the question is answered, an answer was accepted" by Tanghus
close date 2019-08-13 22:53:40.190925