attempt to support hiding search, timeline and fstab devices

[ysalmon]

My first attempt at QML.
It does not work as intended, but I do not understand why.
Possible causes :

• I did not get the currentIndex right and this skews the meaning of the different options for showing devices
• I did not get the QRegExp right, but I think the (?!) idiom is conform to https://doc.qt.io/archives/qt-4.8/qregexp.html#assertions
• the data in url and path have invisible garbage at the beginning which prevents the regexp from matching.

Note that due to the increase in the number of options, I departed from your "combinatorial" filter selection scheme to an "incremental" one.

[ysalmon]

I refactored the code to use https://github.com/oKcerG/SortFilterProxyModel instead of a succession of SortFilterModel, but I do not know how to include such a submodule properly. The module's documentation indicates to add some include directive to a .pro file, but we do not have a .pro file

[dfaust]

Hm, when running this, I get a bunch of errors, like property var xxx must be followed by a colon - don't you?
Also RegExpFilter is unknown. Where does it come from?

SortFilterProxyModel looks interesting, but I don't think we can use it. It is built with C++ and I really don't want to open that can of worms.

[ysalmon]

No, when I execute make, I do not get any error, which is very frustrating because there are obviously errors.

[ysalmon]

Running the applet with plasmoidviewer only gives

 plasmoidviewer --applet org.kde.placesWidget
QML debugging is enabled. Only use this in a safe environment.
qml: View QML loaded
org.kde.plasmaquick: Applet preload policy set to 1
Warning: all files used by qml by the plasmoid should be in ui/. The file in the path "file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/code/LayoutManager.js" was expected at QUrl("file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/LayoutManager.js")
Warning: all files used by qml by the plasmoid should be in ui/. The file in the path "file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/code/FolderTools.js" was expected at QUrl("file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderTools.js")
Toolbox not loading, toolbox package is either invalid or disabled.
qml: New Containment: ContainmentInterface(0x55d1778e02a0)
Constructing a KPluginInfo object from old style JSON. Please use kcoreaddons_desktop_to_json() for "/home/yann/Documents/Programmes/plasma-applet-places-widget/build" instead of kservice_desktop_to_json() in your CMake code.

So no error message, despite the applet not actually being active in the previewer.

[dfaust]

The errors appear only when executing the applet, make just copies the files. Try sudo make install && plasmoidviewer --applet org.kde.placesWidget

[ysalmon]

So, after much work understanding SortFilterModel and package installation procedures (is there a serious Plasma QML library documentation somewhere ? All I can find is unclear wikis with broken links and a website about the Plasma classes which merely states that "the definition of this is in this .cpp file"…), I managed to make it work at least for search and timeline places. Concerning devices, I am now using version 2.1 of PlasmaCore that has a filterCallback feature which should allow to specify a finer criterion. Alas this part does not work yet.

[dfaust]

I just released version 1.3 of plasma-applet-places-widget with the ability to filter timeline and search items. So now only the fstab filter remains. I haven't really thought about that, yet.