Review Request 117900: Cleanup of screenlocker

[Martin Gräßlin]

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https://git.reviewboard.kde.org/r/117900/
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Review request for Plasma and David Edmundson.


Repository: plasma-workspace


Description
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[screenlocker] Remove saverLockReady from org.kde.screensaver interface

Wasn't implemented.

[screenlocker] Remove setupPlasma from org.kde.screensaver interface

We don't have the plasma-overlay anymore, so let's remove it.

[screenlocker] Remove boolean trap in ::lock

Use an enum value to indicate whether there's an immediate or a delayed
lock. At the same time lock is no longer a slot.

[screenlocker] Remove lock slot without argument

Replace by lambda slot which delegates to lock(true).

[screenlocker] Turn idleTimeout slot into lambda slot

Code is only and should only be executed after the timeoutReached signal
from KIdleTime. Using a lambda slot enforces that as well as adding
compile time checking for connect syntax.

[screenlocker] Turn lockProcessReady slot into a lambda slot

Code should only be executed in reply to signal
QProcess::readyReadStandardOutput. From anywhere else it would have been
wrong. By using a lambda slot this gets enforces and the connection gets
compile time checked.

[screenlocker] Turn lockProcessFinished slot into a lambda slot

LockProcessFinished should only be invoked when the QProcess::finished
signal fired. Right now it was possible to invoke that from other code
paths. By turning it into a lambda slot this becomes more clear and we
get compile time checking for the connection.

[screenlocker] Turn KSldApp::grabKeyboard and ::grabMouse into lambdas

It's only used by ::establishGrab and shouldn't be used from anywhere
else. To make this more clear the code is moved into lambda functions
in ::establishGrab.

[screenlocker] Move sanity checks for lockGrace to kcfg

Kcfg provides min/max values, so we don't need the qBound in source code
side.

[screenlocker] Remove not needed includes

Instead of using QDesktopWidget to get the id of the X11 rootWindow we
just ask QX11Info.


Diffs
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  ksmserver/screenlocker/dbus/org.kde.screensaver.xml e700b88215973f11b2601e5d164371874d262580 
  ksmserver/screenlocker/interface.h 97a60737632e1cd799c0a1b09cc73ab4b580d757 
  ksmserver/screenlocker/interface.cpp 0ce68c0d0d8aaf41588d5b5e73e66aa1b6320d15 
  ksmserver/screenlocker/kcfg/kscreensaversettings.kcfg 6a1cbb0935461c8045dd847a63e31e72fb6ca007 
  ksmserver/screenlocker/ksldapp.h 958b55c1ff83e21d57e3c1dfb812016f325046be 
  ksmserver/screenlocker/ksldapp.cpp c678cfc33f82509776047894e46c4fbe15563d49 

Diff: https://git.reviewboard.kde.org/r/117900/diff/


Testing
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Thanks,

Martin Gräßlin

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