Review Request 124380: Make System Tray use a ProxyModel rather than three independent ones

[Kai Uwe Broulik]

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https://git.reviewboard.kde.org/r/124380/
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(Updated Juli 18, 2015, 6:56 nachm.)


Review request for Plasma.


Changes
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Change default return to true so I can put in the forgotten "is category shown" check without messing the code up again


Bugs: 347554
    https://bugs.kde.org/show_bug.cgi?id=347554


Repository: plasma-workspace


Description
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This makes System Tray use the all tasks model with a proxy model that filters shown or hidden tasks. This way we don't need to keep three different models in sync which has shown to often break, especially when item status change. Makes the code significantly easier to understand.

One thing I noticed is that there doesn't seem to be a way for a plasmoid to specify a category, so when I uncheck "Miscellaneous", all items but KMix (which is in the hardware category) disappear. Since we're moving away from most SNI apps to plasmoids, it would make sense to allow an applet so specify a category (either through Plasmoid attached object or in the desktop file (or we do a mapping from the PluginInfo-Categories to sys tray categories))

Edit: Tried the PluginInfo-Categories mapping but it doesn't really fit. Eg. Battery is "System information" but should show up in the Hardware category or systray, likewise for Device NOtifier, and many other systray applets.


Diffs (updated)
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  applets/systemtray/package/contents/ui/CompactRepresentation.qml 3cf774c 
  applets/systemtray/package/contents/ui/ExpandedRepresentation.qml 04de968 
  applets/systemtray/package/contents/ui/main.qml 34b9e4d 
  applets/systemtray/plugin/CMakeLists.txt 9e85a7a 
  applets/systemtray/plugin/host.h adb2c64 
  applets/systemtray/plugin/host.cpp 6d68a43 
  applets/systemtray/plugin/systemtrayplugin.cpp 2c97056 
  applets/systemtray/plugin/tasksproxymodel.h PRE-CREATION 
  applets/systemtray/plugin/tasksproxymodel.cpp PRE-CREATION 

Diff: https://git.reviewboard.kde.org/r/124380/diff/


Testing
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- Checking and unchecking "show all items" works
- Forcing various items shown/hidden works
- An item changing its state (eg. new notification, goes from passive to active) works
- Both lists (compact and expanded) look fine
- Arrow properly appears/disappears depending on how many inactive items there are

Touchpad kcm no longer messes up my systray. Looks like the same bug mediacontroller exposed, where the applet was briefly active during initialization and then went passive, getting the models ouf of sync.


Thanks,

Kai Uwe Broulik

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