[Kde-hardware-devel] Review Request 111964: Basic declarative (QML) interface for Solid

[Kevin Ottens]

> On Aug. 28, 2013, 3:31 p.m., Kevin Ottens wrote:
> > tier1/solid/src/declarative/devices.h, line 73
> > <http://git.reviewboard.kde.org/r/111964/diff/2/?file=178383#file178383line73>
> >
> >     Should be "empty" for the property name.
> 
> Ivan Čukić wrote:
>     I took it from QList and QString - both have isEmpty, while QList has empty() for STL compatibility.
>     
>     Sure it should be without 'is'?

I know the C++ API uses the "is" prefix. But the QML one not (go figure) and since that's intended to be used there.


- Kevin


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On Aug. 29, 2013, 10:57 a.m., Ivan Čukić wrote:
> 
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> 
> (Updated Aug. 29, 2013, 10:57 a.m.)
> 
> 
> Review request for Solid, Àlex Fiestas, Aleix Pol Gonzalez, David Edmundson, and Kevin Ottens.
> 
> 
> Description
> -------
> 
> revision 0:
> 
> This one will need more review and discussion - it exposes some of Solid functionality to QML.
> 
> The reason Solid classes are not exported directly is that they don't tend to have a no-arg constructor, and some of them are not QObjects.
> 
> It registers a class (org.kde.solid.)Devices (initially modelled after DeviceNotifier) that contains the following features:
>  - ability to list all devices or just those that match a defined query (Solid::Predicate)
>  - signals for when devices that match the query are added or deleted
>  - isEmpty property - are there no devices that match the query?
>  - count property - the number of devices that match the query
>  - devices property - a list of udis of the devices that match the query
>  - device method that returns a QObject interface to the device.
> 
> The things I'm in doubt about:
> 
> 1. devices property and device(...) method are similarly named, while one gets udis, and the other actual DeviceInterface object.
> 
> Possible solutions:
>  - devices -> udis or deviceUdis
>  - device(...) -> deviceInterface(...) or something else
> 
> 2. If the user creates two instances with the same query, both instances will contain a query and a Solid::Predicate, the query will be parsed two times and similar.
> 
> The implementation could be complicated a bit by creating private parts of instances with the same queries to be shared, but is it worth it?
> 
> revision 1:
> 
> Shared backends when two Devices objects have a same query.
> 
> 
> Diffs
> -----
> 
>   tier1/solid/src/CMakeLists.txt c3c462f 
>   tier1/solid/src/imports/CMakeLists.txt PRE-CREATION 
>   tier1/solid/src/imports/devices.h PRE-CREATION 
>   tier1/solid/src/imports/devices.cpp PRE-CREATION 
>   tier1/solid/src/imports/devices_p.h PRE-CREATION 
>   tier1/solid/src/imports/qmldir PRE-CREATION 
>   tier1/solid/src/imports/solidextensionplugin.h PRE-CREATION 
>   tier1/solid/src/imports/solidextensionplugin.cpp PRE-CREATION 
> 
> Diff: http://git.reviewboard.kde.org/r/111964/diff/
> 
> 
> Testing
> -------
> 
> Yes. Created a test QML application.
> 
> 
> Thanks,
> 
> Ivan Čukić
> 
>

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