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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/126725/">https://git.reviewboard.kde.org/r/126725/</a>
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<div>Review request for KDE Frameworks and Christoph Feck.</div>
<div>By René J.V. Bertin.</div>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
kwidgetsaddons
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">I was seeing a systematic crash on exitting kdenlive5, on OS X deep under the <code style="text-rendering: inherit;color: #4444cc;padding: 0;white-space: normal;margin: 0;line-height: inherit;">delete menu()</code> instruction in <code style="text-rendering: inherit;color: #4444cc;padding: 0;white-space: normal;margin: 0;line-height: inherit;">KSelectAction::~KSelectAction</code>. The backtrace suggested this might be due to a pending event (or an event due to the menu deletion) being delivered post-mortem to an instance of a QMenu related class.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">My fix is based on 3 principles:
1) release the "foreign" member instance (<code style="text-rendering: inherit;color: #4444cc;padding: 0;white-space: normal;margin: 0;line-height: inherit;">menu()</code>) before releasing the own d-ptr
2) Remove the QMenu instance from ourselves before deleting it to have one less potential dangling reference to it
3) QMenu is a QObject descendent that corresponds to a UI element: on OS X it is safer to dispose these through <code style="text-rendering: inherit;color: #4444cc;padding: 0;white-space: normal;margin: 0;line-height: inherit;">deleteLater()</code> rather than directly.</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">On OS X 10.9.5, Qt 5.5.1 and KF5 Frameworks 5.16.0, built for installation under /opt/local .</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">It seems that points 1) and 2) above already solve the crash issue in kdenlive on OS X, but the general principle stands so I suggest keeping 3) in library code like this.</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>src/kselectaction.cpp <span style="color: grey">(1381099)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/126725/diff/" style="margin-left: 3em;">View Diff</a></p>
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