[SailfishDevel] Nemo DBus typedCall

Thu Jun 15 12:38:05 UTC 2017

Hi,

I'm trying to listen to the MCE DBUS API for changes from the display and the radios.
For some reason, I won't receive the signals while writing on the /request endpoint works perfectly.
Someone an idea?

Seems that Slava can make this work: https://github.com/monich/harbour-lib/blob/master/src/HarbourSystemState.cpp

DBusInterface {

id

:

dbusFlight

bus

:

DBus.SystemBus

service

:

"com.nokia.mce"

path

:

"/com/nokia/mce/signal"

iface

:

"com.nokia.mce.signal"

//

Signals

function

radio_states_ind

(state)

{

console

.log(

JSON

.stringify(

"MCE

radio

state=

"

+

state

))

}

function

display_status_ind

(state)

{

console

.log(

JSON

.stringify(

"MCE

display

state=

"

+

state

))

}

}

Cheers,
Dylan

-------- Original Message --------
Subject: Re: [SailfishDevel] Nemo DBus typedCall
Local Time: June 12, 2017 12:00 AM
UTC Time: June 11, 2017 10:00 PM
From: slava.monich at jolla.com
To: Sailfish OS Developers <devel at lists.sailfishos.org>
Dylan Van Assche <dylan.van.assche at protonmail.com>

Yes, in that respect the changes are backward compatible. Whatever you are getting from GetProperties can be monitored by handling the PropertyChanged signals. You just need to be prepared that SetProperty and other calls (Connect, Disconnect etc.) may respond with net.connman.Error.PermissionDenied if your process doesn't have enough privileges for that.

The idea is that the user has to be reasonably sure that a random app pulled from Jolla Store doesn't mess with the system configuration (e.g. doesn't enable mobile data behind your back). Most likely, a similar fate is awaiting ofono and a few other D-Bus interfaces. Right now Jolla Store apps can do way too much over D-Bus. We (well, at least I) will try not to not break backward compatibility of D-Bus APIs except when the breakage is absolutely inevitable, even though those are not officially supported APIs.

And as always, all these changes are open for close examination at git.merproject.org.

Cheers,
-Slava

Can I still monitor for changes and read properties? Can you give a more complete view what will change exactly? I am building an universal bridge between Python and QML with integrated Platform APIs based on DBUS and other stuff.

Dylan

-------- Original Message --------
Subject: Re: [SailfishDevel] Nemo DBus typedCall
Local Time: June 11, 2017 7:16 PM
UTC Time: June 11, 2017 5:16 PM
From: slava.monich at jolla.com
To: devel at lists.sailfishos.org
Dylan Van Assche [<dylan.van.assche at protonmail.com>](mailto:dylan.van.assche at protonmail.com)

And keep in mind that starting with Sailfish OS 2.1.1 non-privileged processes won't be able to set this property (as well as do a few other connman things, e.g. manipulate the services). In order to be able to use the restricted D-Bus APIs you would have to ask the launcher to run your app under nemo:privileged but that would automatically disqualify the app from getting accepted to Jolla Store. Sailfish OS is getting security conscious!

Cheers,
-Slava

You’re missing the property name. You need:

string:Powered variant:boolean:true

ref:

https://together.jolla.com/question/56437/i-would-like-to-toggle-internet-connectivity-via-terminal-with-dbus/

typedCall('SetProperty', [ {'type':'s', 'value': 'Powered'}, {'type':'v', 'value': valuet}], …);

ref: https://talk.maemo.org/archive/index.php/t-92303.html

-kimmo

From: Devel [mailto:devel-bounces at lists.sailfishos.org] On Behalf Of Dylan Van Assche via Devel
Sent: 10. kesäkuuta 2017 12:45
To: Sailfish OS Developers mailing list
Subject: [SailfishDevel] Nemo DBus typedCall

Hi devs,

I'm playing around with the Nemo DBus QML plugin but I'm a little bit stuck when using the function typedCall().

DBusInterface

{

id

:

wifi

bus

:

DBus.SystemBus

service

:

'net.connman'

path

:

'/net/connman/technology/wifi'

iface

:

'net.connman.Technology'

signalsEnabled

:

true

function

setState

(powered)

{

var

value

=

powered

?

'true'

:

'false'

typedCall(

'SetProperty'

,

{

'type'

:

's'

,

'value'

:

value

},

function

()

{

console

.log(

'[INFO]

wifi

power

state set'

)

},

function

()

{

console

.log(

'[ERROR]

wifi

power

state failed'

)

})

}

function

propertyChanged

(name,

value)

{

console

.log(

"WiFi

changed

NAME=%1

VALUE=%2"

.arg(

name

).arg(

value

))

}

}

But it seems that I'm doing something wrong when I try to enable/disable wifi. It's my first attempts with DBus but I have managed to read the signals with the plugin without any issues.

Cheers,

Dylan

_______________________________________________
SailfishOS.org Devel mailing list
To unsubscribe, please send a mail to
devel-unsubscribe at lists.sailfishos.org

_______________________________________________
SailfishOS.org Devel mailing list
To unsubscribe, please send a mail to
devel-unsubscribe at lists.sailfishos.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.sailfishos.org/pipermail/devel/attachments/20170615/0975e04c/attachment-0001.html>