Use weak reference to SfxObjectShell in SfxEventHint to avoid use-after-free

The events may be processed after the shell has been destroyed. This is
happening reliably after commit e2bfc34d146806a8f96be0cd2323d716f12cba4e
(Reimplement OleComponentNative_Impl to use IGlobalInterfaceTable,
2024-03-11) when controlling LibreOffice from external Java scripts; but
obviously, it could happen before as well.

Now SotObject inherits from cppu::OWeakObject, instead of SvRefBase.

Change-Id: I73a3531499a3068c801c98f40de39bdf8ad90b2b
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/164458
Tested-by: Mike Kaganski <mike.kaganski@collabora.com>
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

0 files changed, 0 insertions, 0 deletions