D25962: [nightcolor] Use a dedicated class for detection of system clock changes

[Vlad Zahorodnii]

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

REVISION SUMMARY
  The ClockSkewNotifier provides a convenient way for monitoring system
  clock changes. One of the key ideas was to hide platform details from
  users of the class. This allows us to add a QTimer fallback path for
  operating systems that don't provide anything to detect system clock
  changes.
  
  In long term, I would like to move the new class to Frameworks.

REPOSITORY
  R108 KWin

BRANCH
  night-color-inhibiting

REVISION DETAIL
  https://phabricator.kde.org/D25962

AFFECTED FILES
  CMakeLists.txt
  colorcorrection/clockskewnotifier.cpp
  colorcorrection/clockskewnotifier.h
  colorcorrection/clockskewnotifierengine.cpp
  colorcorrection/clockskewnotifierengine_linux.cpp
  colorcorrection/clockskewnotifierengine_linux.h
  colorcorrection/clockskewnotifierengine_p.h
  colorcorrection/manager.cpp
  colorcorrection/manager.h

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