There have been several bugs in the past that caused invalid transitions
of the `shown` state, such as going from `showing` to `showing`. These
cause consecutive emissions of the `showing` signal, which can confuse
other classes such as the search controller which connects to the stage
`key-press-event` on showing and disconnects again on `hiding`. Having
two consecutive `showing` signals will cause it to connect twice, and
only disconnect once when hiding the overview again. This will lead to
key presses getting repeated in the search until the session is
restarted. Because there is no obvious connection to how and when this
issue got triggered, this now adds some validation code that only allows
valid transitions and throws an error otherwise so we get a backtrace of
the code actually causing the problem.
This does not fix the issue(s) causing the invalid state transitions, it
only adds a way of tracking them down.
Related: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4651
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2514>
Sandboxed apps that run without a window are detected by the new
background monitoring service, introduced by xdg-desktop-portal.
We have an opportunity to improve the predictability of the desktop
and ensure that application state in transparently reported to users
by showing these apps, and allowing them to closed.
Add a new background apps menu to the quick settings, that is always
added at the bottom of the popover, and has a slightly custom, flat
style applied to it.
Show background-running apps in this menu, and allow closing them
by first attempting to execute the 'quit' action through D-Bus, and
if that fails, sending SIGKILL to the process.
See https://gitlab.gnome.org/Teams/Design/os-mockups/-/issues/191
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2624>
Since commit a1d650ce27, window title changes are listened for in the
ShellWindowTracker in order to emit ::tracked-windows-changed when
there are window title changes.
The rest of the things that happen in between (removing the window
from a ShellApp, possibly have it destroyed, and possibly creating a
new ShellApp to re-insert the window) are superfluous and even result
in the altTab switcher popup ending up confused about the applications
available.
Only emit the signal so changes can be followed on D-Bus, but avoid
the ShellApp fiddling otherwise.
Fixes: a1d650ce27 - window-tracker: Emit 'tracked-windows-changed' on title changes
Closes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6385
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2634>
Menu toggles are currently regular toggles with an additional
arrow button. This allows for a simpler implementation, but
has downsides with regards to keyboard navigation and hover
feedback.
To make it more obvious that the two parts of the menu toggle
perform different actions, change the overall structure of the
toggle to *contain* a regular toggle and the menu button.
That way each element uses its own hover effect, and shows up
in the keynav focus chain.
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5964
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2632>
Testing the greeter UI in nested has been broken for a long time
now, because the backend isn't ready yet when we try to push a
modal (via the screen shield).
As running nested is only relevant for development and testing,
working around the issue rather than fixing it properly seems
fine, so do just that and slightly delay startup when testing
the greeter UI.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2573>
The ClutterFrame argument was added to several signals with mutter commit
08b0e563d4d0088e19d24f3199626a2d27349d09. We have a bunch of after-paint
handlers in gnome-shell too, and updating those was apparently forgotten,
introducing subtle memory corruption that was luckily easy to track down by
running gnome-shell with ASAN enabled. Let's fix that and add the additional
argument to all the signal handlers.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2629>
The --hotplug option works together with --headless and makes the perf
tool not add a persistant virtual monitor, allowing the perf test
themselves able to handle monitors.
This is needed for hotplug tests.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2623>
This is meant to let perf tests initialize themselves earlier than they
would otherwise run.
This allows them to setup the necessary dependencies, e.g. create
test monitors or similar actions.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2623>
