Summary:
The old code path is old and even sometimes uses the ICE protocol to
start a logout from ksmserver. It's quite archaic and unreadable,
KDisplayManager is even worse.
The new code consists of two parts.
A QML friendly front end QObject that we can register in a plugin that
can trigger actions such as prompting a logout or suspending the system
and a singleton that talks to the relevant backend.
Backends are:
* Any logind interface
* Consolekit2
* Consolekit0.4 + UPower
New API loading is also entirely asyncronous.
There are some behavioural changes:
* Creating a logout prompt is called directly instead of going via
ksmserver. The prompt then calls into ksmserver when accepted
* Suspend is called directly instead of going via powerdevil through
some kdelibs4support solid code.
All DBus calls use generated XML files, instead of big QDBusMessage
commands. It's a bit overkill in terms of what we generate, but that's
ready for moving SessionModel in here and killing KDisplayManager.
Patch looks huge because of all the XML files, but is otherwise very
simple.
It is not currently an API break.
Test Plan:
Ran sessionstest on my logind machine
A BSD user tested CK1
Reviewers: #plasma, broulik
Reviewed By: #plasma, broulik
Subscribers: pino, broulik, plasma-devel
Tags: #plasma
Differential Revision: https://phabricator.kde.org/D19389
Summary:
This is a preparation step to unset QT_QPA_PLATFORM from the wayland
startup session script. Setting QT_QPA_PLATFORM breaks 3rd-party Qt
software which does not bundle QtWayland. Most prominent example is
the Qt installer itself (see
https://bugreports.qt.io/browse/QTBUG-60222).
On the other hand our Plasma workspace applications need to be forced to
Wayland on a Wayland system. So we have a conflict between we want to
set QT_QPA_PLATFORM and we don't want to set QT_QPA_PLATFORM.
This change adds new API to KWorkspace to address this problem. The new
method adjusts the QT_QPA_PLATFORM based on the XDG_SESSION_TYPE
enviornment variable. It is completely opt-in. Meaning applications need
to explicitly add the call prior to creating the QGuiApplication and if
the user specifies either QT_QPA_PLATFORM env variable or any of the
-platform command line argument variants, the platform detection is
skipped.
The change also adjusts all plasma-workspace applications which should
use Wayland on Wayland to use the new API. The startup script on the
other hand still sets QT_QPA_PLATFORM. We also have applications outside
of plasma-workspace which needs this detection. Examples are:
* powerdevil
* systemsettings
* kinfocenter
Once this change is merged those applications can be adjusted by linking
against PW::KWorkspace and afterwards QT_QPA_PLATFORM can be unset from
startplasmacompositor.
Test Plan: See added autotest
Reviewers: #plasma
Subscribers: plasma-devel
Tags: #plasma
Differential Revision: https://phabricator.kde.org/D10816
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Branched from the monolithic repo kde-workspace, frameworks branch, at commit
049113e719dd2fc4446d054fa1a3aada330094f0
David Edmundson
Martin Flöser
Kai Uwe Broulik
Aleix Pol