Bug 459180

Yeah we should have Plasma do it. When the `plasma-welcome` binary is installed, Plasma should open it under the following two circumstances:

1. Launch it without any CLI flags on first boot; in this mode, it's an onboarding wizard.
2. Launch it with the `--after-updating-to [plasma major version number]` after an update from one Plasma major version to another (e.g. 5.25 -> 5.26). In this mode, it shows a "what's new in this Plasma release" message.

(Welcome Center is a new onboarding wizard that is currently undergoing KDEreview and targeted at a release in Plasma 5.27. It currently lives at https://invent.kde.org/ngraham/welcome-app/, but should be moved soon)

Correction on the argument name for thing #2: it's "--after-updating-to"

Talked with David E; we can do this ourselves by setting the app up to autostart with appropriate X-KDE-autostart-conditions in its desktop file.

This will probably entail reverting https://invent.kde.org/plasma/plasma-welcome/-/commit/b1c575ce2338dde54e8a55b36904917598773e05 plus adding a few other bits.

A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-welcome/-/merge_requests/23

Git commit aadd3306d50031feccae5239bb7cfa99b2302208 by Aleix Pol Gonzalez, on behalf of Nate Graham.
Committed on 10/12/2022 at 21:34.
Pushed by ngraham into branch 'master'.

Re-add autostart

This is a partial revert of b1c575ce2338dde54e8a55b36904917598773e05
that brings back autostart for the primary usage mode (i.e. as an
onboarding wizard) but in a technically simpler form:
- We now use single config file key that encompass both skipping and
  completing the wizard, which are the same from the perspective of
  whether we want to autostart it next boot or not.
- We now decide whether or not to autostart on the next boot by using
  an X-KDE-autostart-condition key in the .desktop file, rather than
  conditionally deleting the autostart file

We still need to figure out a way to open the app in upgrade mode
following an upgrade to a new major Plasma version.

M  +2    -1    CMakeLists.txt
M  +1    -0    org.kde.plasma-welcome.desktop
M  +2    -0    src/CMakeLists.txt
A  +16   -0    src/config.kcfg
A  +10   -0    src/config.kcfgc
M  +8    -2    src/contents/ui/main.qml
M  +2    -0    src/main.cpp

https://invent.kde.org/plasma/plasma-welcome/commit/aadd3306d50031feccae5239bb7cfa99b2302208

A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-welcome/-/merge_requests/30

Git commit 25364fbd7a5a11f9ad148d21ddf77c84e7521385 by Nate Graham, on behalf of Oliver Beard.
Committed on 08/02/2023 at 18:07.
Pushed by ngraham into branch 'master'.

Re-implement autostart functionality

Autostart is now controlled by a KDED module which inspects the version number of the last Plasma
release when the app was run (or notices if it's absent) and does the right thing:
- Autostart the app in welcome mode if it's absent
- Autostart the app in update mode if it's present for a prior version
- Do nothing otherwise
FIXED-IN: 6.0

M  +4    -0    .reuse/dep5
M  +1    -2    CMakeLists.txt
M  +1    -1    README.md
M  +0    -2    org.kde.plasma-welcome.desktop
M  +3    -0    src/CMakeLists.txt
M  +6    -2    src/config.kcfg
M  +38   -40   src/contents/ui/main.qml
M  +4    -4    src/contents/ui/pages/PlasmaUpdate.qml
M  +4    -4    src/controller.cpp
M  +21   -4    src/controller.h
A  +16   -0    src/kded/CMakeLists.txt
A  +62   -0    src/kded/daemon.cpp     [License: GPL(3+eV) GPL(v3.0) GPL(v2.0)]
A  +25   -0    src/kded/daemon.h     [License: GPL(3+eV) GPL(v3.0) GPL(v2.0)]
A  +9    -0    src/kded/kded_plasma-welcome.json
M  +4    -6    src/main.cpp
A  +12   -0    src/version.h.cmake

https://invent.kde.org/plasma/plasma-welcome/commit/25364fbd7a5a11f9ad148d21ddf77c84e7521385