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authorTobias Markmann <tm@ayena.de>2017-05-15 14:27:12 (GMT)
committerTobias Markmann <tm@ayena.de>2017-05-15 14:34:02 (GMT)
commit33f9a7682a9b40d141900aa7ce302a8e47d4d762 (patch)
tree288ddffe71fb0117bf8d0998c99df54c0d91deb3 /Swiften/Elements/PubSubSubscriptions.cpp
parentd93be16eb1bb43ba602fcd7398fc0e46084dbd7f (diff)
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Use QPointer to prevent access to potentially freed QtTreeWidget
As the QtTreeWidget and the QtFilterWidget are siblings in their parent widget, it might happen that the QtTreeWidget is deleted before the QtFilterWidget. Using Pointer, we are able to detect this case and can prevent accessing the already deleted QtTreeWidget. QtFilterWidget cannot be made the child of the QtTreeWidget in this case, so this fix uses the QPointers approach as a workaround. SWIFT-247 Test-Information: Tests pass and builds on macOS 10.12.4 with Qt 5.4.2. Change-Id: I3a60006519b580010718c4d2aa94638555c0afdf
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