D23473: [platforms/wayland] Create output devices

romangg created this revision.
romangg added a reviewer: KWin.
Herald added a project: KWin.
Herald added a subscriber: kwin.
romangg requested review of this revision.

REVISION SUMMARY
  Since all Wayland session backends now use the same structure of
  AbstractWaylandOutput we can create output devices like in the DRM backend.
  
  First let us do this for Wayland nested sessions.

TEST PLAN
  Manually with output-count 1 and 2. Outputs are correctly shown in KScreen.

REPOSITORY
  R108 KWin

BRANCH
  handleOutputsWayland

REVISION DETAIL
  https://phabricator.kde.org/D23473

AFFECTED FILES
  plugins/platforms/wayland/wayland_backend.cpp
  plugins/platforms/wayland/wayland_output.cpp
  plugins/platforms/wayland/wayland_output.h

To: romangg, #kwin
Cc: kwin, LeGast00n, The-Feren-OS-Dev, sbergeron, jraleigh, fbampaloukas, GB_2, mkulinski, ragreen, jackyalcine, Pitel, iodelay, crozbo, bwowk, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, hardening, romangg, jensreuterberg, abetts, sebas, apol, mart