D22261: Add a global shortcut action to turn off the screen

[Martin Blumenstingl]

mblumenstingl created this revision.
mblumenstingl added a reviewer: Plasma.
mblumenstingl added a project: Plasma.
Herald added a subscriber: plasma-devel.
mblumenstingl requested review of this revision.

REVISION SUMMARY
  PowerDevilDPMSAction already provides implementations for X11 and Wayland which allow turning off the screen.
  For X11 there was a way to do this on the command line (with "xset dpms force off"), but there's no such replacement for Wayland yet.
  
  Add an action - to which users can assign a shortcut - to turn off the screen.

TEST PLAN
  start a plasma wayland session
  open systemsettings5 -> Shortcuts -> Global Shortcuts -> Power Management
  assign a shortcut to "Turn Off Screen"
  press this shortcut
  (screen must now turn off)

REPOSITORY
  R122 Powerdevil

REVISION DETAIL
  https://phabricator.kde.org/D22261

AFFECTED FILES
  daemon/actions/dpms/CMakeLists.txt
  daemon/actions/dpms/powerdevildpmsaction.cpp
  daemon/actions/dpms/powerdevildpmsaction.h

To: mblumenstingl, #plasma
Cc: plasma-devel, LeGast00n, jraleigh, fbampaloukas, GB_2, ragreen, Pitel, ZrenBot, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
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