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yaliang is offline yaliang
2014-08-13 , 10:07
Posts: 113 | Thanked: 67 times | Joined on Jun 2012 @ Yunfu city,Guangdong province,China
#81
how can i launch app with dbus?
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velox is offline velox
2015-11-10 , 14:14
Posts: 394 | Thanked: 1,341 times | Joined on Dec 2009
#82
[edit]Thanks to coderus, at least the solution for my problem (not for setting properties, though) is available a few posts down.[/edit]

Can anyone help me with how to set DBus Properties from QML?
Calling methods works, for example stuff like this:
Code:
    DBusInterface {
        id:dbif
        service: 'org.mpris.MediaPlayer2.jolla-mediaplayer'
        path: '/org/mpris/MediaPlayer2'
        iface: 'org.mpris.MediaPlayer2.Player'
    }
// […]
    dbif.call('Pause', undefined)
But when I tried to adapt the Bluetooth snippet from earlier in this thread, I failed miserably.
One of my ~1000 attempts:

Code:
    DBusInterface {
        id:dbifcon
        bus: DBus.SystemBus
        service: 'net.connman'
        path: '/net/connman/technology/bluetooth'
        iface: 'net.connman.Technology'
    }
// […] 
    dbifcon.setProperty('Powered', false)
I also tried using combinations of different ifaces (org.freedesktop.DBus.Properties) and setProperty, even tried dbifcon.call('setProperty', ['Powered', false]), which from my understanding isn't even supposed to work that way.

But it still won't do a thing. Am I missing something obvious?

The docs of nemo-qml-plugin-dbus only have a big "TODO" where setting Properties are supposed to be explained…
Thanks in advance…
Last edited by velox; 2015-11-11 at 21:09. Reason: solved. thanks!
 

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marxian is offline marxian
2015-11-10 , 15:53
Posts: 2,448 | Thanked: 9,523 times | Joined on Aug 2010 @ Wigan, UK
#83
^^

It looks like the setting of properties is disabled by default: https://git.merproject.org/mer-core/...rface.cpp#L147

Try this:

Code:
propertiesEnabled: true
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velox is offline velox
2015-11-10 , 16:44
Posts: 394 | Thanked: 1,341 times | Joined on Dec 2009
#84
Originally Posted by marxian View Post
Try this:

Code:
propertiesEnabled: true
That's interesting, thank you so much!
Sadly, propertiesEnabled does not seem to be exported to the QML layer (or however you'd call that if you knew what you're doing, which I am obviously not).

So there might be no QML-only way to do this?
 
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marxian is offline marxian
2015-11-10 , 17:52
Posts: 2,448 | Thanked: 9,523 times | Joined on Aug 2010 @ Wigan, UK
#85
It turns out that property introspection was only recently added in this commit: https://git.merproject.org/mer-core/...c7924af7538c2b

So, I suppose you can either drop the code into your project, or wait for the update.
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velox is offline velox
2015-11-10 , 20:32
Posts: 394 | Thanked: 1,341 times | Joined on Dec 2009
#86
Sounds like a Plan and should not be that hard to do... Thanks again, your input was extremely helpful for me.
 
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coderus is offline coderus
2015-11-10 , 23:54
Posts: 6,436 | Thanked: 12,700 times | Joined on Nov 2011 @ Ängelholm, Sweden
#87
btw, net.connman /net/connman/technology/bluetooth NOT using DBus Properties, SetProperty is it's own method, so setProperty over DBusInterface wont work. Use typedCall.
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velox is offline velox
2015-11-11 , 20:28
Posts: 394 | Thanked: 1,341 times | Joined on Dec 2009
#88
Originally Posted by coderus View Post
btw, net.connman /net/connman/technology/bluetooth NOT using DBus Properties, SetProperty is it's own method, so setProperty over DBusInterface wont work. Use typedCall.
I love you. In a non-sexual, nerdy way.

[…awkward pause…]

Anyway, if anyone is a beginner like me and wants to enable or disable Bluetooth via QML, feel free to copy and paste this working example:
Code:
    DBusInterface {
        id:dbif
        bus: DBus.SystemBus
        service: 'net.connman'
        path: '/net/connman/technology/bluetooth'
        iface: 'net.connman.Technology'
        function enable(){
            var valueVariant = true; 
            dbif.typedCall('SetProperty', [
                {'type':'s', 'value': 'Powered'}, 
                {'type':'v', 'value': valueVariant}
            ]);
        }

        function disable(){
            var valueVariant = false;
            dbif.typedCall('SetProperty', [
                {'type':'s', 'value': 'Powered'}, 
                {'type':'v', 'value': valueVariant}
            ]);
        }
    }
Note: I found the extra var statement to be necessary – from what I understand, writing true/false directly seems to be cast as Boolean, not as Variant.
 

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Markkyboy is offline Markkyboy
2015-12-28 , 20:04
Posts: 433 | Thanked: 727 times | Joined on Oct 2012 @ Costa Blanca, España
#89
Originally Posted by velox View Post
I love you. In a non-sexual, nerdy way.

[…awkward pause…]

Anyway, if anyone is a beginner like me and wants to enable or disable Bluetooth via QML, feel free to copy and paste this working example:
Code:
    DBusInterface {
        id:dbif
        bus: DBus.SystemBus
        service: 'net.connman'
        path: '/net/connman/technology/bluetooth'
        iface: 'net.connman.Technology'
        function enable(){
            var valueVariant = true; 
            dbif.typedCall('SetProperty', [
                {'type':'s', 'value': 'Powered'}, 
                {'type':'v', 'value': valueVariant}
            ]);
        }

        function disable(){
            var valueVariant = false;
            dbif.typedCall('SetProperty', [
                {'type':'s', 'value': 'Powered'}, 
                {'type':'v', 'value': valueVariant}
            ]);
        }
    }
Note: I found the extra var statement to be necessary – from what I understand, writing true/false directly seems to be cast as Boolean, not as Variant.
Yep, I'm a beginner and I'd like to know how to do this, rather, I would like to know where to put this information?, is it being added to an existing file?, I have read the comments but don't fully understand...help!
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coderus is offline coderus
2015-12-29 , 04:14
Posts: 6,436 | Thanked: 12,700 times | Joined on Nov 2011 @ Ängelholm, Sweden
#90
star t from helloworld examples of qml please, then you would understand what qml is and how it works.
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