D14991: Track state acked by XDG Client

[David Edmundson]

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

REVISION SUMMARY
  In XDGShell we send configure requests with a serial number which at
  some point in the future will be acknowledged by the client.
  
  The one piece of useful information is the state the client has
  acknowledged it is in at the time of a surface commit.
  
  XDGShell code already tracks pending configure requests and when they
  are acked, but currently purely by number.
  
  This patch adds tracks the state sent with each configure request,
  and therefore what state a client has acked.
  
  End goal is to make maximise/fullscreen effects frame perfect

TEST PLAN
  Relevant unit test

REPOSITORY
  R127 KWayland

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D14991

AFFECTED FILES
  autotests/client/test_xdg_shell.cpp
  src/server/xdgshell_interface.cpp
  src/server/xdgshell_interface.h
  src/server/xdgshell_interface_p.h
  src/server/xdgshell_stable_interface.cpp
  src/server/xdgshell_v5_interface.cpp
  src/server/xdgshell_v6_interface.cpp

To: davidedmundson, #kwin
Cc: kde-frameworks-devel, michaelh, ngraham, bruns
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