D28101: [Toplevel] Check info being null

Kai Uwe Broulik <[email protected]> Tue, 17 Mar 2020 14:41:50 +0000

Newsgroups	gmane.comp.kde.devel.kwin
Message-ID	<[email protected]>

broulik created this revision.
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REVISION SUMMARY
  There's some X11-reliance in `Toplevel` which is ideally split out but for now let's check for `info` being null.
  For instance, accessing `pid()` on a deleted Wayland client can crash when it's no longer a `XdgShellClient`.

TEST PLAN
  - Had an effect that called `EffectWindow->pid()` in `windowDeleted`. No longer crashes now

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D28101

AFFECTED FILES
  toplevel.cpp

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