If one wants to run tests the non-installed gnome-shell, that currently
fails as gnome-shell the executable attempts to link against
./build/src/libgnome-shell.so, but when GObject introspection tries to
find what library to link to for Shell, it goes to the installed
libgnome-shell.so, causing two different versions of libgnome-shell.so
to be loaded.
This, however, can be avoided thanks to meson adding $ORIGIN paths to
relevant libraries before installing an executable. What this means in
practice is that we can inspect ourself upon startup, discover whether
the RPATH/RUNPATH header contains $ORIGIN, and if so, expand it to the
directory containing the executable, and prepend the introspection
search paths with said directory.
This effectively means that the introspection machinery now finds the
same library that the linker linked the gnome-shell executable with,
making it run successfully.
It's not possible to use $GI_TYPELIB_PATH since
g_irepository_prepend_library_path() takes precedence. There is no
"append" variant of that API.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1349>
Tearing down gjs means that we won't have any dangling references kept
alive by GC or otherwise alive Javascript objects, when we finally tear
down the mutter context. This allows for a clean shutdown of GNOME
Shell.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1349>
Even though GNOME Shell is not explicitly using structured logging via
G_LOG_USE_STRUCTURED, GLib uses it as default since 2016 [1], and so
we're de facto using it.
As per this, if backtrace on warnings is enabled, it is ignored since the
log handler isn't used anymore, and no dump is printed.
Thus, replace the default log handlers with writer functions instead, honoring
backtrace-warnings debug string.
[1] https://gitlab.gnome.org/GNOME/glib/-/commit/fce7cfaf40b6e1e50c9140aa0397f5
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/697>
This ports over gnome-shell and the theme test case to MetaContext,
instead of the various functions that were available before.
The test case is changed to use the special test context, used to
construct contexts for testing. It's part of a shared libary separate
from the main libmutter one.
This enables building mutter tests during CI, as the test framework is
needed by some of gnome-shell's tests.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1840>
`mallinfo` has been deprecated in favor of `mallinfo2`:
```
The fields of the mallinfo structure that is returned by the
older mallinfo() function are typed as int. However, because
some internal bookkeeping values may be of type long, the
reported values may wrap around zero and thus be inaccurate.
```
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1786>
Screen magnification is the compositor's business, not that of "random"
unprivileged tools. And for cases where a more specialised behavior is
wanted, an extension likely does a better job than a consumer of the
D-Bus API.
In addition to that, exporting the interface has been broken for an
unknown time, because the object that holds the implementation isn't
referenced and thus ends up being garbage collected, whoops.
And last but not least, this gets rid of the last public D-Bus name
that isn't clearly in the system namespace (org.gnome.Shell,
org.gnome.Mutter, org.gtk).
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3452
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1523>
This is a relict from the pre-3.0 days, when it was common to
replace a running GNOME 2 session with gnome-shell. There has
been no good reason to claim the name for many years, time to
drop it.
If someone really wants to run gnome-panel alongside the shell,
they probably know what they are doing. Or cannot be helped anyway.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1521>
For sandboxed apps, permission to talk to org.freedesktop.Notifications
looks innocent enough. However as all exported services share the same
connection to the session bus, that permission actually grants an app
access to *any* shell D-Bus API.
While we want apps to use the notification portal, it is still common
for apps to use libnotify, raw D-Bus calls or even notify-send.
We don't want to give those apps a way to circumvent most of the sandbox
restrictions, so stop owning the org.freedesktop.Notifications name.
In a next step we will implement a separate notification-daemon that
exposes the API on the well-known address and proxies any requests to
the real implementation in gnome-shell.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/547
If graphical applications want to start from systemd units, they need to
start after we're properly ready to display them. This is particularly
important under X where `_GTK_FRAME_EXTENTS` and other xprops are needed
to have the right theming.
We're doing this in an idle callback so that the dynamic starting of
`gnome-session-x11-service.target` (which launches `gsd-xsettings`) as
the result of a signal emission happens before us signalling we're ready
for later things to start.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/750
Using the bus name to notify service startup to systemd has some
disadvantages. The main one being that systemd will consider a
gnome-shell restart (Alt+F2 r) a service failure and restart the shell,
cleaning up all its children (i.e. user launched applications). In the
future the shell should launch applications in their own transient unit
so that a service restart does not affect applications.
Another potential issue is that we must never load
gnome-shell-wayland.service and gnome-shell-x11.service at the same
time, as systemd does not like two services providing the same bus
name.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1496https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/690
Since -Werror=missing-braces is used, having missing braces warnings
aren't allowed. However, the first member of struct sigaction is a union
whose first member is a pointer, causing clang to produce warnings when
it is initialized to { 0 }.
Instead of initializing to a zero value, we can specify values of
members directly in the initializer to avoid warnings.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/633
GSettings now recognizes per-desktop overrides that can be used
to change schemas' default values for a particular desktop. This
is not entirely unlike our existing custom override mechanism in
mutter, except that it is not limited to keys in org.gnome.mutter,
and it doesn't require a separate schema - the latter means that
we (and gnome-teak-tool) no longer have to figure out the correct
schema for the current login session and just use the original one.
https://bugzilla.gnome.org/show_bug.cgi?id=786496
After we receive one of the tracked signals, in case we get stuck inside
the gjs_dumpstack () call, we use an alarm to raise the previously emitted
signal, however without using SA_NODEFER, the raise inside the alarm handler
will be ignored.
To avoid to handle new signals caused by the handler calls, once we get the
first signal, we just ignore them all as they could only lead to dirty traces.
Also, cleaning up a bit the code, and disabling the shell log handler
in dump_gjs_stack_alarm_sigaction since this might lead to a new
gjs_dumpstack () request.
https://bugzilla.gnome.org/show_bug.cgi?id=789237
In order to debug issues triggered by JS code we might need to
see the stack of it, this is not normally visible in static stack traces,
thus we need to call gjs_dumpstack () before dying the process.
Intercepting signals SIGABRT, SIGTRAP (needed for catching fatal glib
errors) SIGFPE and SIGIOT by default, while introducing a new
'backtrace-segfaults' flag for the SHELL_DEBUG environment variable to
do the same on SIGSEGV and SIGBUS (this is a precaution to avoid that we
corrupt the stack for automatic errors trackers).
In any case after dumping the stack we raise the signal again, in order
to make the system aware of it.
https://bugzilla.gnome.org/show_bug.cgi?id=789237
This is not strictly necessary when linking the shell with DT_RPATH as
the runtime paths will be extracted from the introspected libraries and
used from gobject introspection to find them when loading them based on
the typelib files, but when linking with DT_RUNPATH, as it's the case
for some linkers (e.g. ld.gold, or ld.bfd in some distros like Debian).
By explicitly prepending this directory as a library path for GIR, we're
making sure that the wrapped shared objects installed in Mutter's and
GNOME Shell's private directories can be found in all cases.
https://bugzilla.gnome.org/show_bug.cgi?id=777519
The built-in telepathy integration is far less prominent than it
used to be, and doesn't really justify a link time dependency to
send debug message over D-Bus.
https://bugzilla.gnome.org/show_bug.cgi?id=771721
We are still using DBUS_NAME_FLAG_REPLACE_EXISTING from dbus-glib
in some places (whose headers are drawn in via telepathy-glib).
As both GIO and dbus-glib use the values that will end up being
sent on the bus, the define and enum value are interchangeable,
but it's clearly better to consistently use the library that is
explicitly included.
https://bugzilla.gnome.org/show_bug.cgi?id=771721
This will be required in the upcoming version of GJS.
The reference count on ShellGlobal is 2 at this point, because JS holds a
reference due to the "window.global = Shell.Global.get()" line in
ui/environment.js. Therefore, destroy the GjsContext first, then unref
the ShellGlobal object.
Cleaning up ShellGlobal was previously only enabled behind a debug
environment variable, but it should be required now.
https://bugzilla.gnome.org/show_bug.cgi?id=775374
You can define a new importer object by importing a subdirectory in GJS.
This is undocumented, but it is likely to at least hold until the whole
thing moves to ES6 modules, after which we'll be able to do this purely
in JS with Reflect.Loader.
Since this was the only thing the ShellJS library did, we can remove it
altogether.
This allows us to discontinue use of the gjs-internals-1.0 embedder API.
https://bugzilla.gnome.org/show_bug.cgi?id=772386
Commit 6c2f3d1d17 moved pref overrides into JS to implement
session mode specific overrides in a clean and generic way.
However that approach comes with a cost - doing the overrides only
after having handled over control to JS means that the core will
be initialized with the non-overridden settings before changing
to the correct values. In the best case this is unnecessary work,
but it can in fact have a worse effect: when initializing workspaces,
we will restore the previous number of workspaces when using
dynamic-workspaces and reset to the configured number otherwise.
As the non-overridden default for dynamic-workspaces is FALSE, we
can easily end up moving the user's windows to the "wrong" workspace.
Now GSettings is expected to grow support for session specific defaults,
which will render our entire override system obsolete (yay!). Given
that, it seems acceptable to use a less generic (and uglier) approach
in the meanwhile, in order to fix aforementioned problems. So move
overrides back before core initialization and just hardcode the
session-mode => override-schema relation.
https://bugzilla.gnome.org/show_bug.cgi?id=695487
The log handler can be invoked at bad times, and in particular
it can be invoked from gsignal with the signal lock taken.
At that time, calling into arbitrary high-level APIs can
cause a dead-lock.
Instead, only send to telepathy the tp-glib debug messages.
Everything else is in the journal anyway.
https://bugzilla.gnome.org/show_bug.cgi?id=724256
Specifying the session mode on the command-line doesn't play
well with session management (since the saved session desktop
file well either drop the specified session mode, or force it
always, even if the user picked a different mode at the login
screen)
This commit adds support for specifying the session mode via an
enviroment variable. For now, keep the old command line interface
for backward compatibility
https://bugzilla.gnome.org/show_bug.cgi?id=720894
Build gnome-shell for x11, and gnome-shell-wayland for wayland
(as well as the associated libgnome-shell and libgnome-shell-wayland).
The first one links to libmutter, the second to libmutter-wayland.
libgnome-shell and libgnome-shell-wayland are now compiled from
libgnome-shell-base (with all sources that are independent of mutter),
libgnome-shell-menu (with the copy-pasted gtk sources), plus the
sources that use mutter API
https://bugzilla.gnome.org/show_bug.cgi?id=705497
We will allow to use mode-specific overrides; in preparation for that,
move the code so that we only override preferences after initializing
the session mode.
https://bugzilla.gnome.org/show_bug.cgi?id=701717
Attaching gdb and running with G_DEBUG=fatal-warnings is not a very
fast to debug a specific issue (especially if you have warnings at
startup, since then you need to run the shell from a terminal).
Instead, introduce a new SHELL_DEBUG environment variable that can
be set to backtrace-warning, causing a gjs_dumpstack() after every
warning or critical.
https://bugzilla.gnome.org/show_bug.cgi?id=700262
g_str_has_prefix() will assert when passed NULL, so we need to make
sure that we are passed a non-NULL log_domain first.
Spotted by <goughost<at>yahoo.com.cn>
https://bugzilla.gnome.org/show_bug.cgi?id=663601
