Review Request 117903: Make notifications plasmoid reuse only 3 Dialogs instead of creating new one for each notification

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This review has been submitted with commit 8f76fed3a4cc3f1f16edc43d816c51f32ae05b88 by Martin Klapetek to branch master.

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On May 2, 2014, 12:40 p.m., Martin Klapetek wrote:
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/117903/
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> (Updated May 2, 2014, 12:40 p.m.)
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> Review request for Plasma.
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> Repository: plasma-workspace
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> Description
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> Before, the notifications would create new Dialog for each incoming notification. Now it reuses only 3 Dialogs to save resources.
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> The notification popup is a QML component; I decided to handle all this in the cpp plugin as JS Array is quite crap compared to QList and I had quite some crashes in QV4 on slightly heavier Array processing. But as the QML component needs to talk to the dataengine (like when you close the notification or exectue an action) and uses some methods from the rest of the plasmoid, I can't just instantiate it from the cpp side. So I create the component in QML, pass it to CPP, set the ownership to CPP so it's not deleted ever and then handle it all there.
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> Diffs
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>   applets/notifications/package/contents/ui/NotificationPopup.qml 9265352 
>   applets/notifications/package/contents/ui/Notifications.qml 64d80a7 
>   applets/notifications/plugin/notificationshelper.h 1e1f6c2 
>   applets/notifications/plugin/notificationshelper.cpp 1edfbad 
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> Diff: https://git.reviewboard.kde.org/r/117903/diff/
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> Testing
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> Plasma no more leaks memory with every notification (the root memleak, coming from Dialog, is quite possibly still present, but the notifications don't expose it anymore). Notifications work as before, even better.
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> For testing purposes, you can try running 
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> for i in {1..10}; do notify-send asasd$i -i kde; done
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> Thanks,
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> Martin Klapetek
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