Since the introduction of ClutterGrabs, MetaDnd now no longer gets
notified about input events on the stage during grabs (for example while
the alt-tab popup is shown) and thus can't move the grab feedback actor
anymore.
To fix this, forward events to MetaDnD directly from
meta_display_handle_event() when a ClutterGrab is in effect.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2308>
The XDG activation support was missing interoperability with other
startup sequences, notably those coming from other means than XDG
activation.
In order to play nice with X11 startup sequence IDs, we not just
have to check for the startup ID being in the general pool, but
we also need to fallback into X11-style timestamp comparison so the
window ends up properly focused.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2314>
When a drag and drop occurs from an X11 client to a Wayland native
client, mutter uses an internal X11 window as a peer for the DnD drop
site.
That internal X11 window is moved and resized to match the Wayland
native windows as the drag destination moves.
When moving from one Wayland native window to another Wayland native
window, the same X11 window is used, and as a result no DND enter/leave
events is emitted.
In that case, the drop may occur on the wrong Wayland native window,
because no new XdndEnter/XdndLeave event were emitted.
To avoid that issue, use a pair of X11 windows instead of just one and
alternate between the two when repicking a new drop surface, so that
moving from a Wayland surface to another will always generate the
expected enter/leave events that we rely on.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2136
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2305>
If we happen to handle a CLUTTER_TOUCH_BEGIN without a corresponding
CLUTTER_TOUCH_END at MetaWaylandTouch, we would still attempt to
reuse the older MetaWaylandTouchInfo, resulting in an assert triggered
as there is a stale touch reference on the previous surface.
Warn in place and create a new touch info struct to still fix the
broken surface accounting, instead of finding out the hard
way after the surface is destroyed. The assert is preserved to ensure
the accounting does not sneakily break anymore/further.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/584
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2251>
The `ensure_x11_unix_perms` function tries to detect systems on which
/tmp/.X11-unix is owned by neither root nor ourselves because in that
case the owner can take over the socket we create (symlink races are
fixed in linux 800179c9b8a1e796e441674776d11cd4c05d61d7). This should
not be possible in the first place and systems should come with some way
to ensure that's the case (systemd-tmpfiles, polyinstantiationm …). That
check however only works if we see the root user namespace which might
not be the case when running in e.g. toolbx.
This change relaxes the requirements such that in the root user
namespace we detect and abort if a vulnerable system is detected but
unconditionally run in toolbx.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2261>
Wayland event processing and WM operations are themselves outside the
ClutterGrab loop so far. Until this is sorted out, these pieces of
event handling have got to learn to stay aside while there is a
ClutterGrab going on.
So, synchronize foci and other state when grabs come in or out, and
make it sure that Wayland event processing does not happen while
grabs happen.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2099>
The experimental feature "autoclose-xwayland" requires a couple of
prerequisites:
1. Be able to (re)start Xwayland on demand, i.e. with systemd
2. Xwayland must support the terminate delay
Add a warning message if "autoclose-xwayland" was requested but any of
those prerequisites is not met.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2258>
Since commit 226afa24a - "Use Xwayland auto-terminate feature", the
callback function shutdown_xwayland_cb() does not check for the
autoclose-xwayland experimental feature anymore.
As a result, when running nested or outside of systemd,
gnome-shell/mutter would quit after 10 seconds unless some X11 window
was mapped.
But now that we rely on Xwayland's own terminate feature, there really is
no need to use any xserver timeout function anymore.
We do not need to keep track of X11 windows being created or unmapped, as
again, Xwayland does all that for us at the client level.
Remove all this code that we do not need anymore.
fixes: 226afa24a - Use Xwayland auto-terminate feature
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2258>
When using Xwayland-on-demand (default), if the (experimental) autoclose
features is enabled, we can rely on Xwayland's auto-terminate feature
instead of explicitly killing the Xwayland process.
With it, gone is the mechanism that was added to check the X11 clients
connected and their executable to check whether we can (safely) kill
Xwayland.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1794>
The connection to the Xserver for the X11 window manager part of mutter
even on Wayland may prevent the Xserver from shutting down.
Currently, what mutter does is to check the X11 clients still connected
to Xwayland using the XRes extension, with a list of X11 clients that
can be safely ignored (typically the GNOME XSettings daemon, the IBus
daemon, pulseaudio and even mutter window manager itself).
When there is just those known clients remaining, mutter would kill
Xwayland automatically.
But that's racy, because between the time mutter checks with Xwayland
the remaining clients and the time it actually kills the process, a new
X11 client might have come along and won't be able to connect to
Xwayland that mutter is just about to kill.
Because of that, the feature “autoclose-xwayland” is marked as an
experimental feature in mutter and not enabled by default.
Thankfully, the Xserver has all it takes to manage that already, and
is even capable of terminating itself once all X11 clients are gone (the
-terminate option on the command line).
With XFixes version 6, the X11 clients can declare themselves
"terminatable", so that the Xserver could simply ignore those X11
clients when checking the remaining clients and terminate itself
automatically.
Use that mechanism to declare mutter's own connection to the Xserver as
"terminatable" when Xwayland is started on demand so that it won't hold
Xwayland alive for the sole purpose of mutter itself.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1794>
It is possible that we never create a cached state for a surface
even if it is synced. That is the case if `commit()` is never called.
We still need to call `apply_state()` in this case in order to run
e.g. `role_post_apply_state()` or `parent_state_applied` on subsurfaces.
So just ensure to initialize the cached state instead of bailing out.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2232>
Subsurfaces can be effectively synced indirectly via their ancestors.
Right now such indirectly synced surfaces don't apply their cached
state when their ancestor effectively becomes desync as by the time
we call `parent_state_applied()` on them, they are considered as
desync.
Thus sligthly reoder things so when the ancestors becomes desync
and applies its state, those surfaces still count as synced and
will thus apply their cached state as well.
While on it, add a check to prevent `set_desync()` to have side
effects when the target surface is not currently synced.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2232>
When running in KVM, the EGL driver supports querying the render node
path, but it returns NULL. Handle that better by falling back to
querying the device main device file, instead of falling back on v3 of
the protocol and logging a warning.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2151>
If the EGL header is not new enough, it will not contain that relatively
new macro definition, so to avoid breaking compilation, define it
ourselves for now. Should be possible to remove after some time.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2214>
This significantly increases the chance of a fullscreen surface buffer
being scanned out instead of being painted via composition. This is
assuming the client supports the DMA buffer feedback Wayland protocol.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2146>
Whenever a surface is promoted as a scanout candidate by
MetaCompositorNative, it'll get a CRTC set as the candidate CRTC.
When a client asks for DMA buffer surface feedback, use this property to
determine whether we should send a scanout feedback tranche.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1959>
We're in the destructor, it's pointless to unset the userdata as we'll
never ever see a request being invoked with it ever again, since the
resource itself will be destroyed or marked as destroyed.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2202>
Most clients nowadays switched to buffer damage, most notably Mesa
and Xwayland. Thus lets avoid the extra cost of allocating three
`cairo_region_t`s and doing some calculations.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2168>
If no viewport is set, the neutral viewport is the surface size
without viewport destination size applied - i.e. transform and
scale applied to the buffer size. Change it accordingly, giving
us the same values we'd return in `get_width` in this case.
As result, this only changes cases where a viewport destination
size but no viewport source rectangle is set.
The change fixes exactly such cases, e.g. the Gstreamer Wayland
sink. Can be tested with: `gst-play-1.0 --videosink=waylandsink`.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2168>
When Xwayland was not initalized, we'd still clean things up. What this
accidentally meant was that the uninitialized display number 0 was
cleanud up, which very likely was main display of the host session.
What this meant in practice was that /tmp/.X11-unix/X0 was often
removed, causing every Flatpak X11 application to fail to start until
Xwayland was restarted nad the X0 socket file was restored.
Fix this in two ways: firstly only shutdown Xwayland if we ever started
it, i.e. if the X11 display policy was not 'disabled'. This should fix
the issue most of the times. Secondly only clean up the socket if it was
ever initialized. This should fix things if the socket creation failed,
as if it did, the name would be set.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2162>
A popup surface can be remapped multiple times using the same
wl_surface, if a new xdg_popup object is created. To properly handle
this, we need to reset the 'dismissed_by_client' boolean to false, as
otherwise we won't allow new buffer commits.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1993>
We are using internal API that has the benefit of checking that the
focus surface still matches, but has the drawback that it does not
check the MetaWaylandKeyboard state.
In order to fix this, look for keyboard focus and serial matches
specifically when triggering activation.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2148>
Since this signal is in a hot path during input handling, it makes sense
not to have this be a signal at all, currently most of the time spent in
it is in GLib signal machinery itself.
Replace it with a function/user data pair that are set on the sprite
itself. Only the places that create an sprite are interested in hooking
one ::prepare-at behavior per sprite, so we can do with a single pair.
This makes meta_cursor_sprite_prepare_at() inexpensive enough.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1915>
Let the meta_cursor_sprite_realize() function return a boolean value
telling whether there was an actual change in the sprite cursor. E.g.
the surface/icon for it changed in between.
This is used in the native backend to avoid converting/uploading again
the cursor surface.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1915>
Listen to changes in MetaWindow::is-alive, so that the pointer
can logically leave the surface as soon as that happens. This
helps prevent flooding the client socket while it is stalled.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2122>
If we were cancelled, it could mean we teared down, meaning fetching
manager instances will attempt to fetch past freed instances. Handle
this by waiting with the fetching until we know we weren't cancelled.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2140>
This avoids the following crash, that could happen in certain rare race
conditions, e.g. in tests:
0) wl_closure_invoke (closure=0x2fbf9e0, target=0x2e5b3d0, opcode=0)
at ../src/connection.c:1014
1) wl_client_connection_data () at ../src/wayland-server.c:432
2) wl_event_loop_dispatch () at ../src/event-loop.c:1027
3) wayland_event_source_dispatch () at ../src/wayland/meta-wayland.c:104
4) g_main_dispatch () at ../glib/gmain.c:3381
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2127>
A client can create a token without any seat, serial, or surface. In
this case, we'd still try to grab, which would run into some unforseen
code paths, potentially resulting in the following crash:
0) meta_wayland_tablet_seat_device_added (tablet_seat=0x55dff4271c90,
device=0x7f87b80655b0) at
../src/wayland/meta-wayland-tablet-seat.c:200
1) meta_wayland_tablet_seat_new (seat=0x0, manager=0x55dff3ec7b40) at
../src/wayland/meta-wayland-tablet-seat.c:283
2) meta_wayland_tablet_manager_ensure_seat (manager=manager@entry=0x55dff3ec7b40,
seat=seat@entry=0x0) at
../src/wayland/meta-wayland-tablet-manager.c:239
3) meta_wayland_tablet_manager_ensure_seat (seat=0x0, manager=0x55dff3ec7b40) at
../src/wayland/meta-wayland-touch.c:595
4) meta_wayland_seat_get_grab_info (seat=0x0, surface=0x55dff43ff5b0,
serial=0, require_pressed=0, x=0x0, y=0x0) at
../src/wayland/meta-wayland-seat.c:479
5) activation_activate (...) at
../src/wayland/meta-wayland-activation.c:261
Fix this by not trying to grab if not enough parameters was passed when
creating the token. Also add a test case that reproduces the above
crash.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2081>
When an activation times out, we'll be signalled two signals on the
startup sequence object: "timeout", and "complete".
Normally, the "complete" signal is emitted when a startup sequence is
completed succesfully by it being used for activation, and in this case,
the xdg_activation implementation should remove the sequence from the
startup notification machinery.
However, in the timeout case, we should not remove it, as the startup
notification machinery itself will deal with this. If we would, we'd end
up with use-after-free issues, as the sequence would be finalized when
removed the first time.
To avoid this, just clean up the Wayland side in the "timeout" signal
handler, leaving the "complete" signal handler early out if it was
already handled by it.
This avoids crashes like:
0) g_type_check_instance (type_instance=type_instance@entry=0xdd6740)
1) g_signal_handlers_disconnect_matched (instance=0xdd6740, ...)
2) meta_startup_notification_remove_sequence (sn=0x4cc890,
seq=0xdd6740) at
../src/core/startup-notification.c:544
3) startup_sequence_timeout (data=0x4cc890, ...) at
../src/core/startup-notification.c:504
4) g_timeout_dispatch (...) at ../glib/gmain.c:4933
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2081>
The previous code was trying to detect client resizes by only
considering resizes without any pending configurations as client
resizes. There can however be pending configurations that do not involve
resizing, such as ones triggered by state changes. These may also stay
unacknowledged by the client until the next size change. This was
causing client resizes after showing the window (and therefore changing
its status to focused) to not be detected as client resize.
Fix this by checking whether the queue has any configuration with size
changes rather than just whether it is empty.
Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2023
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2103>
meta_window_wayland_finish_move_resize() is called for both, finishing
a resize that has been requested through/by mutter and for resizes
directly done by the client. This introduces a CLIENT_RESIZE flag to
differentiate the former from the latter. Having this distinction is
required to know what the last requested size by either the client or
mutter is while ignoring older requests that might only have been
applied now.
This excludes client resizes when there are still pending
configurations, because the resize is known to be only temporary.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2066>
This will make clients immediately aware of the output disappearing,
while still allowing for a grace period of 10 seconds for attempting to
bind to it before it turning into a protocol error. This API added as
part of wayland 1.18.
This requires us to not add the output resource to the output resource
list, if the output was made inert. This effectively makes the resource
useless, but that is harmless, since shortly after, the client will
clean it up anyway.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1796>
This will be crucial when we start to remove the global directly when an
output is removed, as that means Xwayland might have removed the output
before we managed to get our queries in.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1796>
We setup Xwayland in an early phase of the X11 display, before we had a
MetaX11Display, and teared down in a couple of places happening when
tearing down the Xwayland integration if the X server died or
terminated. It was a bit hard to follow what happened and when it
happened. Attempt to clean this up a bit, with things being structured
as follows:
* Early during X11 display connection setup, only setup the rudimentary
X11 hooks, being the libX11 error callbacks, and adding the local
user to XHost.
* Move "initialize Xwayland component" code to a new
'x11-display-setup' signal handler. Things setup here are cleaned up
in the 'x11-display-closing' handler.
* Connect to 'x11-display-setup' and 'x11-display-closing' up front,
and stay connected to these two.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1796>
When we use gbm together with the NVIDIA driver, we want the EGL/Vulkan
clients to do the same, instead of using the EGLStream paths. To achieve
that, make sure to only initialize the EGLStream controller when we
didn't end up using gbm as the renderer backend.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2052>
Quoting the spec for `wl_data_device::drop`:
> If the resulting action is "ask", the action will not be considered
> final. The drag-and-drop destination is expected to perform one last
> wl_data_offer.set_actions request, or wl_data_offer.destroy in order
> to cancel the operation.
We did not respect the action choosen by the drop destination when
it called `wl_data_offer::set_actions` after `wl_data_device::drop`
if a user override was still active. This eventually resulted in
a protocol error in `wl_data_offer::finish`, as the current action
could still be `ask`.
Fix this by only allowing a user override to `ask` before `drop` is
called, thus making sure the final `set_actions` preference is
honored.
Closes https://gitlab.gnome.org/GNOME/mutter/-/issues/1952
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2043>
With each wl_ouitput corresponding to a monitor, the logical monitor is
not part of the MetaWaylandOutput anymore.
Previously, send_xdg_output_events() would compare the old logical
monitor against the new one to determine whether the size and/or
position was changed and should be sent along with the xdg_output
events.
But that logic is now defeated as there is no old/new logical monitor
anymore, so the updated size or location would never be sent again.
Xwayland relies on this information to update its X11 clients and its
own internal root size, without this the X11 screen size and XRandR
information would never be updated.
To avoid that issue, always send the xdg_output size and location on
xdg_output events, Xwayland is smart enough to update its X11 clients
with XRandR only when the layout actually change.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1964
Fixes: bf7c3450 - Make each wl_output correspond to one monitor
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2050>
The extra stage update we schedule in `apply_state()` is mainly
needed in two situations:
- a partial update happened only in obscurred or off-screen parts
of a surface
- a surface requests frame callbacks without having done damage,
notably the (in)famous Firefox vsync implementation.
Commit 0330ce1f15 limited the update to cases when the actor
was mapped, breaking it for Firefox in the overview.
Remove the mapped check again and get the stage from the backend,
restoring previous behaviour.
Fixes 0330ce1f15
Closes https://gitlab.gnome.org/GNOME/mutter/-/issues/1957
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2034>
A client request for maximizing itself should always be handled by mutter
by emitting a configure event with the native maximized resolution,
regardless of the client's own set limits. This also aligns the behavior by
allowing fixed-sized windows to go into fullscreen or maximized state.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1997>
The way wl_seat capabilities work, by notifying clients of capabilities
changes, and clients consequently requesting the relevant interface
objects (pointer, keyboard, touch) is inherently racy.
On quick VT changes for example, capabilities on the seat will be added
and removed, and by the time the client receives the capability change
notification and requests the relevant keyboard, pointer or touch,
another VT switch might have occurred and the wl_pointer, wl_keyboard or
wl_touch already destroyed, leading to a protocol error which kills the
client.
To avoid this, create the objects when requested regardless of the
capabilities.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1797
Related: https://bugzilla.gnome.org/show_bug.cgi?id=790932
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/77>
These are ClutterInputFocus subclasses, so this will trigger reset of
the input method. As the .done event is possibly deferred in the
zwp_text_input_v3 implementation, ensure the changes caused by the
reset are flushed immediately, before the button press is forwarded
to the client by MetaWaylandPointer.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1940>
This is more in line with the protocol, and allows us to remove some
awkward code that tries to "combine" different metadata from different
monitors into one, which sometimes meant picking an arbitrary "main"
monitor, or "and" metadata together to find a common ground.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1712>
Before we first created the MetaWaylandCompositor instance, which would
repare Clutter/Cogl so they could initialize and turn on Wayland display
server features, then later to initialize the rest. Now that part is
done by the Wayland infrastructure itself, so we don't need the early
initialization. Simplify things a bit by centralizing it all into a
single meta_wayland_compositor_new() call.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1861>
As with the compositor type enum, also have the X11 display policy enum,
as it's also effectively part of the context configuration. But as with
the compositor type, move it to a header file for enums only, and since
this is a private one, create a private variant meta-enums.h.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1861>
The DRM buffers aren't really tied to mode setting, so they shouldn't
need to have an associated mode setting device. Now that we have a
device file level object that can fill this role, port over
MetaDrmBuffer and friends away from MetaKmsDevice to MetaDeviceFile.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1828>
When the MetaWindow resize machinery for toplevels ended up in the
Wayland window implementation, we tried to avoid configuring
not-yet-mapped windows that just had its zero sized dimension pass
through the constraint machinery, resulting in a 1x1 sized window.
If we'd properly set up the min size metadata earlier, that 1x1 would
likely be the minimum size set of a window, which makes things harder to
predict when peeking at side effects.
However, what the side effect peeking intends to do, as documented in
the comment, was to figure out when the client hadn't committed any
buffer yet, i.e. during the initial map, and in those cases avoid
sending that nasty 1x1 size, resulting in silly window sizes. A more
robust way to detect this is instead checking when we shouldn't really
try resize things our own way, and in those cases early out as was done
before.
This means that, for a yet to me mapped window, we only ever want to
send an initial non-zero configuration when 1) it's initially maximized,
2) initially fullscreen, or 3) initially tiled in any way, as those are
the situations where the compositor is the one deciding the size.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1912>
The cancel phase for swipe gestures was not being handled, hence,
Wayland "end" events where not sent to clients when the gesture was
cancelled.
A swipe gesture is cancelled when extra finger(s) are put down on the
touchpad in the middle of the gesture or when some, but not all, of the
fingers are put up.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1857>
Getting crossing events is necessary between client surfaces while
there is a popup grab in effect (e.g. allow press-drag-release in
menus), we should only stick with the focus surface while the pointer
is outside any client surface.
This partially undoes commit 79050004b0 (or, at least, mutter no
longer fixes the bug it claimed to fix). This will be addressed in
gtk4.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1885>
We first initialized the Wayland infrastructure, then the display, but
on shutdown, we first teared down the Wayland infrastructure, then the
display.
Make things a bit more symmetric and tear down the display before
Wayland. This however means we need to tear down some things Wayland a
bit earlier than the rest. For now this is a separate function, but
eventually, it can be replaced with a signal shared by the backend's
'prepare-shutdown' signal.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1863>
This way we can initialize without having any way to retrieve it via
some global variable. This isn't needed now, but will be once Wayland
infrastructure initializiation is done in a single step.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1863>
This is especially important as we might end up here when initializing
the Wayland infrastructure. Later that will be done in one step, meaning
the "get_default()" function will not work properly.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1863>
It might not be there when shutting down, so get it from a more managed
place. Note that this isn't strictly needed right now, but eventually,
the MetaWaylandCompositor pointer will be cleared using a g_clear*()
helper, which clears the pointer before freeing the instance, which
wouldn't work here.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1863>
This will allow us less awkward startup, where previously we had to
pre-initialize Wayland very early so Cogl could bind the Wayland display
when it initialized. Move things around so we bind the Wayland EGL
display when initializing the rest of Wayland infrastructure.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1863>
The callback on_displayfd_ready() would unconditionally set the return
value to TRUE, regardless of the condition.
Use the GIO condition to determine if there was data written and adjust
the return value accordingly.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1851>
We initialize, but might not start, e.g. when a test case just needs a
backend and doesn't start mutter. When cleaning up, we'll still try to
clean up Xwayland integration, and this commit handles cleaning up
without having made the mess.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1856>
We make objects inert when disabling the seat, but we requests may still
have effect. This is especially bad if disabling is followed by
destroying, but also means e.g. set_cursor() not doing an early out
after the pointer capability was disabled.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1822>
MetaDisplay does a lot of things, and is a central part to anything
window management. To let Wayland units have an easier time tearing
down, make it so that the Wayland infrastructure is terminated before
MetaDisplay.
This also makes sure that X11 support is turned off, so that we don't
stumble upon Xwayland terminating due to the Wayland socket connection
being broken. Will mitigate that in a better way in a later commit.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1822>
We might not be the only entity holding on to the X11 GdkDisplay,
meaning the X11 connection will stay alive indefinitely, e.g. if the gjs
context has some reference to it.
Avoid running into issues due to X11 connection errors by setting the
libX11 handlers to no-ops, so when we are terminating; that means the
GDK X11 connection can stay "alive" until its too late, and we'll just
silently ignore any connection errors that may happen due to the
lingering GDK display reference.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1822>
Compositor behaviour when calling `wl_data_device_manager_get_data_device`
for the same seat multiple times is not very clearly defined in
the spec and both Mutter and Weston currently don't handle
the DnD case properly.
While Weston handles DnD only for the last created data device,
Mutter, because of some internal reshuffling, ends up toggling
between two devices.
Properly handling this case requires some bigger changes. So
in order to behave predictable and in line with Weston,
only take the last created data device into account while
still keeping the previous created ones around.
The main affect client here is Firefox, which gets very
confused by the toggling behaviour and becomes more stable
with this patch.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1841>
If a subsurface first gets reordered and afterwards detached from
the parent before the parent surface got commited, we currently
would end up reattaching the subsurface to its previous parent.
While clients should avoid this behaviour, it's legit according
to the spec.
We already prevent similar cases where the subsurface is destroyed -
extend that check to detaching, which includes the destroy case.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1831>
Use the new API to make sure the shaped texture has a valid size
during the next layout phase.
This is needed here because, quoting the previous commit:
When the texture size is invalidated using `invalidate_size()`, the new
size will only get calculated the next time `update_size()` is
called. This happens e.g. in `meta_shaped_texture_get_preferred_size()`
via `ensure_size_valid()`.
`update_size()` can chain up to `clutter_content_invalidate_size()`
as well as emitting a `size-changed` signal. If this happens during
layout, the result is a 'change the layout conditions during layout'
issue, causing heavy breakage in e.g. the Shell overview.
To fix this, expose `ensure_size_valid()` as API so callers can make
sure the texture has a valid size without creating redundant size
invalidations calls.
Note that if a buffer with a new size is attached we already trigger
`update_size()` explicitely, avoiding such situations.
Closes https://gitlab.gnome.org/GNOME/mutter/-/issues/1718
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1799>
If a client is naive enough to assume that it can set the selection while
it has got no surfaces, mutter will simply ignore the request and leave
the selection unchanged.
This is good and the expected behavior, however the poor client that did
this will enter in an inconsistent state where it "claimed" the selection,
but nobody told it that the wl_data_source is not current.
So, when the client is focused the next time, it will receive wl_data_offers
as usual, but it will still think all the time that it is owning the
selection. In the case of GTK, that takes client-side shortcuts, so any
attempted paste will still bring back the client-side aborted selection.
To fix this, cancel the selection right away if it happened while unfocused,
the client will be able to undo its own failed selection, and not assume
that future offers are its own.
Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1469
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1772>
It seems to be the preferred format of the Mesa V3D driver on
Raspberry Pi 4. If the compositor doesn't advertise it then Mesa will
fallback from `zwp_linux_dmabuf_v1` to `wl_drm`, incorrectly. Meaning
it will keep using a buffer with modifiers on an interface that does
not have modifiers.
Add support for `DRM_FORMAT_ABGR2101010`. It works, and prevents Mesa
from taking its broken fallback path.
Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1520
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1798>
For Xwayland, mutter creates the sockets in the standard /tmp/.X11-unix
directory.
Yet, if that directory already exists, it may have been created by
another user with full control over the created socket.
To avoid that issue, if the directory /tmp/.X11-unix already exists,
check that the permissions are as we expect, i.e. the directory belongs
to either root or the user herself, is writable and has the sticky bit.
Thanks to fabian@ritter-vogt.de for reporting that issue.
https://gitlab.gnome.org/GNOME/mutter/-/issues/1708
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1787>
Unlike other subsurface state, placement operations need to get
applied in order. As per spec:
```
Requests are handled in order and applied immediately to a pending
state. The final pending state is copied to the active state the
next time the state of the parent surface is applied.
```
Having placement operations being part of the subsurface state
makes it difficult to support arbitrary orderings. Make them
part of the parents surface pending state instead.
Closes https://gitlab.gnome.org/GNOME/mutter/-/issues/1691
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1768>
When deciding if `configure` event should be sent,
`meta_window_wayland_move_resize_internal` compares requested window size
with `window->rect` size. However, `window->rect` is only updated when `commit`
is received. So the following sequence produces incorrect result:
1. a window initially has size `size1`
2. `move_resize_internal` is called with `size2`. `configure` is sent
3. `move_resize_internal` is called with `size1` to restore original size,
but `commit` for `size2` haven't arrived yet. So `window->rect` still has size
`size1`, and thus new `configure` is not sent
4. `commit` for `size2` arrives, window changes size to `size2`
Expected window size in the end: `size1`
Actual: `size2`
To fix the issue, take size from pending `configure` events into account.
Fixes https://gitlab.gnome.org/GNOME/mutter/-/issues/1627
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1755>
This commit assumes that cursor surfaces work in a "mailbox" fashion. If
they are painted multiple times before a successful flip, all commits
but the last get discarded, and the last commit gets presented after the
flip succeeds. This is more or less how it works in the atomic backend,
and also more or less how it works in other backends, with the exception
that the cursor painting might fail without any way of knowing. This
assumption is still better than unconditionally discarding all cursor
surface feedbacks as if the cursor painting always fails.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1484>
Regarding the sequence = 0 fallback: in some cases (moving a cursor
plane on atomic amdgpu) we get sequence = 0 in the page flip callback.
This seems like an amdgpu bug, so work around it by assuming a sequence
delta of 1 (it is equal to 1 because of the sequence != 0 check above).
Sequence can also legitimately be 0 if we're lucky during the 32-bit
overflow, in which case assuming a delta of 1 will give more or less
reasonable values on this and next presentation, after which it'll be
back to normal.
Sequence is also 0 on mode set fallback and when running nested, in
which case assuming a delta of 1 every frame is the best we can do.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1484>
The presentation-time protocol allows surfaces to get accurate
timestamps of when their contents were shown on screen.
This commit implements a stub version of the protocol which correctly
discards all presentation feedback objects (as if the surface contents
are never shown on screen). Subsequent commits will implement sending
the presented events to surfaces shown on screen.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1484>
If `meta_xwayland_start_xserver()` returned via an error path, some of
the socket FDs were leaked.
Fix that, and add `steal_fd()` calls to make it clearer that FDs passed
to `g_subprocess_launcher_take_fd()` are transferred to it. There were
no bugs with how `GSubprocessLauncher` was being used.
Spotted while working on
https://gitlab.gnome.org/GNOME/glib/-/issues/2332.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1738>
X11 clients can use different models of input handling, of which some
may not result focus being set synchronously.
For such clients, meta_focus_window() will not change the focus itself
but rely on the client itself to set the input focus on the desired
window.
Add a new MetaWindow API to check when dealing with such a window.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1716>
