D29486: xdgshellclient: Allow menus from panels to take focus

cblack created this revision.
cblack added a reviewer: KWin.
Herald added a project: KWin.
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cblack requested review of this revision.

REVISION SUMMARY
  Popup menus that are transient for a Plasma panel are now able to grab
  the focus on Wayland.

TEST PLAN
  Before: right click panel, unable to navigate menu with keyboard.
  After: right click panel, able to navigate menu with keyboard.

REPOSITORY
  R108 KWin

BRANCH
  cblack/fix-the-menus (branched from master)

REVISION DETAIL
  https://phabricator.kde.org/D29486

AFFECTED FILES
  xdgshellclient.cpp

To: cblack, #kwin
Cc: kwin, Orage, cacarry, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, fbampaloukas, mkulinski, ragreen, jackyalcine, iodelay, crozbo, bwowk, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, hardening, romangg, jensreuterberg, abetts, sebas, apol, ahiemstra, mart