D24012: Supress mouse events in KCMs causing window moves

[David Edmundson]

davidedmundson created this revision.
davidedmundson added a reviewer: Plasma.
Herald added a project: Frameworks.
Herald added a subscriber: kde-frameworks-devel.
davidedmundson requested review of this revision.

REVISION SUMMARY
  If a mouse press is handled by the new input handlers the mouse evnet is
  not accepted at a window level.
  
  This causes the breeze style to start a window drag.
  
  Marking all mouse events as accepted after being processed supresses
  them reaching the widget.
  
  This is noticable in the rewritten kscreen KCM when running on XCB. (it
  would also affect wayland, but the breeze window management is currently
  broken there)

TEST PLAN
  Dragged a monitor in kscreen kcm. The monitor representation moved not the whole window

REPOSITORY
  R295 KCMUtils

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D24012

AFFECTED FILES
  src/kcmoduleqml.cpp
  src/kcmoduleqml_p.h

To: davidedmundson, #plasma
Cc: kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns
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