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Delete FileMetaDataToolTip using deleteLater() to prevent crashes

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The problem was that Qt tried to deliver an 'Enter' event to the
dangling pointer that once pointed to the tool tip.

Many thanks to G. Christ for finding a way to reproduce this crash!

BUG: 282257
BUG: 310579
FIXED-IN: 4.9.4
This commit is contained in:
Frank Reininghaus 2012-11-24 05:08:25 +01:00
parent 96672c166f
commit 4220612684
1 changed files with 3 additions and 1 deletions
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4
src/views/tooltips/tooltipmanager.cpp
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@ -104,7 +104,9 @@ void ToolTipManager::hideToolTip()
if (m_fileMetaDataToolTip) {
m_fileMetaDataToolTip->hide();
delete m_fileMetaDataToolTip;
// Do not delete the tool tip immediately to prevent crashes when
// QCoreApplication tries to deliver an 'Enter' event to it, see bug 310579.
m_fileMetaDataToolTip->deleteLater();
m_fileMetaDataToolTip = 0;
}
}