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

[Aleix Pol Gonzalez]

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Looks good!

Maybe it could be a QAbstractListModel? this way it could provide some other features that might be useful in other use-cases (thinking of the devices plasmoid).

- Aleix Pol Gonzalez


On Aug. 28, 2013, 2:41 p.m., Ivan Čukić wrote:
> 
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> (Updated Aug. 28, 2013, 2:41 p.m.)
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> 
> Review request for Solid, Àlex Fiestas, Aleix Pol Gonzalez, David Edmundson, and Kevin Ottens.
> 
> 
> Description
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> 
> 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?
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> revision 1:
> 
> Shared backends when two Devices objects have a same query.
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> 
> Diffs
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>   tier1/solid/src/CMakeLists.txt c3c462f 
>   tier1/solid/src/declarative/CMakeLists.txt PRE-CREATION 
>   tier1/solid/src/declarative/devices.h PRE-CREATION 
>   tier1/solid/src/declarative/devices.cpp PRE-CREATION 
>   tier1/solid/src/declarative/devices_p.h PRE-CREATION 
>   tier1/solid/src/declarative/qmldir PRE-CREATION 
>   tier1/solid/src/declarative/solidextensionplugin.h PRE-CREATION 
>   tier1/solid/src/declarative/solidextensionplugin.cpp PRE-CREATION 
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> Diff: http://git.reviewboard.kde.org/r/111964/diff/
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> 
> Testing
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> Yes. Created a test QML application.
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> 
> Thanks,
> 
> Ivan Čukić
> 
>

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