Review Request: Fixes for screen hotplugging

[Aaron Seigo]

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ok, i just committed r1142279 to plasma-destop which should hopefully address this issue. please update and try it out...

- Aaron


On 2010-06-24 01:37:15, Anthony Bryant wrote:
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> (Updated 2010-06-24 01:37:15)
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> 
> Review request for Plasma.
> 
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> Summary
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> This patch fixes a few problems that occur when hotplugging screens:
> 1. On startup, existing containments are associated with a screen even if that screen does not exist.
>    This causes a bug when a screen is added: since the containment already thinks it is associated with the new screen,
>    it doesn't emit screenChanged() with the new screen, and doesn't get a view created for it.
>    To fix this, I've made Containment::setScreen() set the new screen to -1 if it doesn't exist.
> 2. When a screen is removed, a containment will remain associated with the screen that it is on, causing the same bug
>    as in 1 when the screen is added again.
>    To fix this, I've made sure a containment's screen is set to -1 when its view is removed by PlasmaApp.
> 3. PlasmaApp tries to connect to a nonexistent signal in Kephal: screenAdded(int), the real one is screenAdded(Kephal::Screen*)
> 
> I'm not completely sure that this is the best way of fixing these problems, please correct me if it isn't.
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> 
> Diffs
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>   /trunk/KDE/kdebase/workspace/plasma/desktop/shell/plasmaapp.h 1141983 
>   /trunk/KDE/kdebase/workspace/plasma/desktop/shell/plasmaapp.cpp 1141983 
>   /trunk/KDE/kdelibs/plasma/containment.cpp 1141983 
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> Diff: http://reviewboard.kde.org/r/4451/diff
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> 
> Testing
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> Started plasma with and without an external screen and tried adding and removing it a few times.
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> 
> Thanks,
> 
> Anthony
> 
>

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