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Add sanity check to avoid potential crash in the Collabora Online server

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Make sure some coordinates don't become huge negative numbers. This
doesn't fix the unknown root cause of course.

There already was such a sanity check here in this branch, but for
Android only. I now made it cross-platform.

Let's use the same Change-Id as in the corresponding commit in the
co-2021 branch.

Change-Id: I28e343271b3f80ac203b52db1be58d2add89eecd
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/128932
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Andras Timar <andras.timar@collabora.com>
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/130051
Tested-by: Jenkins
Reviewed-by: Tor Lillqvist <tml@collabora.com>
This commit is contained in:
Tor Lillqvist 2022-01-25 16:57:09 +02:00
parent 823eb92025
commit 2b58a0979f
1 changed files with 3 additions and 2 deletions
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5
vcl/source/window/layout.cxx
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@ -283,10 +283,11 @@ void VclBox::setAllocation(const Size &rAllocation)
// Though the dialogs are rendered in javascript for LOK Android some widgets like weld::DrawingArea
// is sent as bitmap but it is rendered from only the visible part
// when it gets negative, it shrinks instead of expands and it becomes invisible
#if HAVE_FEATURE_ANDROID_LOK
if (nExtraSpace < 0)
{
SAL_WARN("vcl.layout", "nExtraSpace went negative, setting to zero");
nExtraSpace = 0;
#endif
}
}
//Split into those we pack from the start onwards, and those we pack from the end backwards