Review Request: Move screensaver and locking functionality to kwin from krunner

[Alex Merry]

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http://git.reviewboard.kde.org/r/101943/
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Review request for kwin, Plasma, Aaron J. Seigo, and Martin Gräßlin.


Summary
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This transfers the screen locking and screensaver funcitonality wholesale from krunner to kwin.  This has been OK'd in principle by the relevant maintainers.

Most of the code is simply moved untouched.  Points of note:

I've introduced a KWIN_BUILD_SCREENSAVER option, to match the other kwin build options, like KWIN_BUILD_TABBOX.  I disabled it for Plasma active, but that may not be appropriate.

I put the screensaver stuff (creating the SaverEngine object and setting up the shortcut) in KWin::Workspace.  The shortcut stuff is actually in useractions.cpp, but this implements methods in KWin::Workspace.

I'm using the kglobalaccel D-Bus interface directly to steal the existing shortcut from KRunner.  I'm doing it like this because the KAction/KGlobalAccel interface is not rich enough to do this (probably wisely - this isn't something apps should generally be doing).  The shortcut deregistration happens in KWin rather than KRunner because I don't want to rely on the order in which KWin and KRunner are started (or even on KRunner being started at all).


Diffs
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  kcontrol/screensaver/CMakeLists.txt e4dcc3a 
  krunner/CMakeLists.txt 4455847 
  krunner/README c8b9740 
  krunner/config-xautolock.h.cmake eadb0a6 
  krunner/dbus/org.freedesktop.ScreenSaver.xml 5efd943 
  krunner/dbus/org.kde.screensaver.xml e700b88 
  krunner/kcfg/kscreensaversettings.kcfg c8f76f3 
  krunner/kcfg/kscreensaversettings.kcfgc af9133d 
  krunner/krunnerapp.h 82db725 
  krunner/krunnerapp.cpp c143be5 
  krunner/lock/CMakeLists.txt cf9a67e 
  krunner/lock/autologout.h 0c44405 
  krunner/lock/autologout.cc c86e29a 
  krunner/lock/config-krunner-lock.h.cmake 7bfdfd6 
  krunner/lock/kscreenlocker.notifyrc 2955c5f 
  krunner/lock/lockdlg.h f25e55f 
  krunner/lock/lockdlg.cc 6367216 
  krunner/lock/lockprocess.h 8b6d9a8 
  krunner/lock/lockprocess.cc ecc632f 
  krunner/lock/main.h 8a60353 
  krunner/lock/main.cc 9f1c9b8 
  krunner/main.cpp 84a547b 
  krunner/screensaver/saverengine.h 3384d4a 
  krunner/screensaver/saverengine.cpp 6c15be6 
  krunner/screensaver/xautolock.h 3db3233 
  krunner/screensaver/xautolock.cpp 7124215 
  krunner/screensaver/xautolock_c.h 3b82f5c 
  krunner/screensaver/xautolock_diy.c b9df2f8 
  krunner/screensaver/xautolock_engine.c d6d0cf5 
  kwin/CMakeLists.txt 7d6ea52 
  kwin/config-kwin.h.cmake a291859 
  kwin/useractions.cpp 387e499 
  kwin/workspace.h 66b9830 
  kwin/workspace.cpp 8cf5299 
  plasma/desktop/applets/kickoff/CMakeLists.txt bc5fa2e 
  plasma/generic/applets/lock_logout/CMakeLists.txt 8381d46 
  plasma/generic/containmentactions/contextmenu/CMakeLists.txt a1fc205 
  plasma/generic/runners/sessions/CMakeLists.txt 1b8292c 
  powerdevil/daemon/CMakeLists.txt bad3dae 

Diff: http://git.reviewboard.kde.org/r/101943/diff


Testing
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Allowing the screensaver to activate (both terminating the screensaver before it locks and after, with lock after 60 seconds set).

Using the lock screen action from krunner.

Stealing a non-default shortcut from KRunner (set the krunner Lock Session shortcut to another sequence, and ran KWin; KWin successfully deregistered krunner's Lock Session shortcut and assigned the key sequence to its own Lock Session shortcut).

Running KWin when no existing Lock Session shortcuts had been defined (either for krunner or kwin).  KWin successfully registered its Lock Session shortcut with the default key sequence (this is what would happen with a fresh user account).


Thanks,

Alex

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