Review Request 109293: Fix carshes when moving stream across devices

[Commit Hook]

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This review has been submitted with commit 3ea6fbcad8c205f828f3c626f4d50d4938e9f16a by Michael Palimaka on behalf of Eugene Shalygin to branch master.

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On March 5, 2013, 3:39 p.m., Eugene Shalygin wrote:
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> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/109293/
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> (Updated March 5, 2013, 3:39 p.m.)
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> Review request for KDE Multimedia and Christian Esken.
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> Description
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> The crash, described in the referenced bug, seems to be caused by deleting menu objects from menu action handlers, since KMix completele rebuilds UI elements on reaction to stream move. By changing signal connection type to QueuedConnection, we just scheduling move from the handler (which is always called via user input event). Thus, UI rebuild will happen later and crash is avoided.
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> This addresses bug 311167.
>     http://bugs.kde.org/show_bug.cgi?id=311167
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> Diffs
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>   gui/mdwslider.cpp 5572d63 
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> Diff: http://git.reviewboard.kde.org/r/109293/diff/
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> Testing
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> manual
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> Thanks,
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> Eugene Shalygin
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