These frames client will use a visual with alpha information, and
report the opaque frame shapes through the _NET_WM_OPAQUE_REGION
window property. We can use this information in the Mutter side
for accurate opaque shapes, despite X11 windows with frames now
being seen as possibly transparent.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2758>
If the window is unmapped or otherwise unmanaged while still existing,
we would fail to let the frames client follow up in destroying the
frame for the window.
Delete the _MUTTER_NEEDS_FRAME property, so that the frames client
can react to meta_window_destroy_frame(), this avoids stale invisible
frame windows for clients that simply unmap windows to reuse them
later.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2791>
This XChangeWindowAttributes call was never surrounded by an error trap
and was not really expected to fail with BadWindow since the frame window
would be owned by Mutter itself.
This however is no longer true, and we might be getting a BadWindow from
the frame window given the right timing.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2745>
Quoting Carlos:
The META_PRIORITY_EVENTS ± 1 happening below are in order to set these idles
and timeouts in a priority that is relative to the literal GDK event priority,
making those diverge is a likely way to sneakily break things.
But that's unlikely to happen, and decoupling mutter from GTK further
should make it moot, so perhaps it's alright after all.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2407>
Clutter has an API to get the text direction but used to depend
on gtk3's translation domain. In order to avoid broken i18n
in case gtk3 is not installed, move the transtalable string to
clutter itself.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2407>
Things like meta_compositor_destroy() and meta_compositor_add_window()
isn't intended to be used externally, and if they was, things would
probably fall apart rather quickly.
MetaCompositor also isn't introspected, meaning things that technically
belong to the compositing parts isn't easily available via some object,
but much take detours via other objects like MetaDisplay.
So move the API intended for internal usage to compositor-private.h, and
leave API that is meant to be expose in the public compositor.h.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
The "later" API is used to queue actions in relation to compositing,
thus is owned by the MetaCompositor instance. Make users of this
functionality get MetaLaters instance from the compositor, and stop
using the global meta_later() API.
display: Use non-singleton MetaLater API
tests: Use non-singleton MetaLater API
meta/common: Make docs refer to context aware MetaLater API
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
The API has no concept of user data, and requires the user to some how
get an instance without context, i.e. via static globals. Limit this to
the file where this is needed.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
As elsewhere, make sure objects that need to have a ownership up to the
context, and use this ownership chain to find relevant components, such
as the backend or the Wayland compositor object instance.
wayland/data-device: Hook up data devices to seats
They are tied to a seat - make that connection in struct fields too, so
that related objects can get to the context via it.
wayland: Don't get Wayland compositor via singleton getter
This means via the ownership chain or equivalent.
xwayland: Hook up manager to Wayland compositor
Same applies to the drag-n-drop struct.
xwayland: Make X11 event handling compositor instance aware
This avoids finding it via singletons in the callee.
xwayland: Don't get Wayland compositor from singleton
xwayland: Pass manager when handling dnd event
window/xwayland: Don't get Wayland compositor from singleton
xwayland/grab-keyboard: Don't get backend from singleton
xwayland: Don't get backend from singleton
wayland: Always get the backend from the context
This means traveling up the ownership chain or equivalent when
necessary.
wayland: Hook up data devices, offers and sources to the compositor
This allows tying them to a context without going through any
singletons.
wayland: Don't get display from singleton
xwayland: Don't get display from singleton
tablet: Don't get display from singleton
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
As with other parts, make objects have the ability to walk up the
ownership chain to the context, to get things like the Wayland
compositor or backend instances.
Contains these squashed commits:
display: Don't get backend from singleton
window: Don't get backend from singleton
keybindings: Don't get backend from singleton
workspace: Don't get backend from singleton
display: Don't get Wayland compositor from singleton
selection: Add display getter
context/main: Get backend directly from the context
clipboard-manager: Don't get display from singleton
stack-tracker: Don't use singleton MetaLater API
startup-notification: Hook up sequences and activations to display
This allows using context aware API directly.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
This might happen when the workspace is not switched and
focus_default_window is called or when 'workspace on primary display
only' is enabled, a secondary display exists and the workspace is
switched.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2747>
There's 2 users of this, meta_display_sync_wayland_input_focus() which
does already perform these checks on its own, and MetaCursorTracker's
update_displayed_cursor() to determine whether it should go with the
Wayland client's cursor.
This second check should also consider the existing ClutterGrabs, so
make meta_display_windows_are_interactable() handle them for both
callers.
Fixes the cursor shown over windows while e.g. there are menus opened.
Close: https://gitlab.gnome.org/GNOME/mutter/-/issues/2553
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2754>
Let the frames client render its own shadow. In order to do that,
avoid double painting a shadow on the compositor side, and extend
the mask area of the frame, so it does unveil the (so far)
hidden frames-client-side shadows.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2175>
There's two meanings of "frame" there! Since SSD frames are now
rendered by an external client, and there are no actual mechanism
that ensures the frame did already get painted when the client did
respond to its NET_WM_FRAME_SYNC_REQUEST request, there may be
artifacts when resizing windows.
In order to get always the best visual result, we should actually
synchronize rendering with both the client window and the window
frame window.
This commit adds these mechanisms, so a sync alarm update is
expected on both windows until further resizes are allowed, this
ensures window and frame stay in sync, even after moving rendering
elsewhere.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2175>
Replace the in-process implementation of frames with the external
frames client.
When a client window is created and managed by Mutter, Mutter will
determine whether it is a window that requires decorations and
hint the creation of a frame for it by setting the _MUTTER_NEEDS_FRAME
property on the client window.
After the frames client created a window that has the _MUTTER_FRAME_FOR
property, Mutter will proceed to reparent the client window on the
frame window, and show them as a single unit.
Rendering and event handling on the frame window will be performed by
the external client, Mutter is still responsible for everything else,
namely resizing client and frame window in synchronization, and
managing updates on the MetaWindowActor.
In order to let the frame be managed by the external client, Mutter
needs to change the way some properties are forwarded to the client
and/or frame windows. Some properties are necessary to keep propagating
to the client window only, some others need to happen on the frame
window now, and some others needs to be propagated on both so they
are synchronized about the behavior.
Also, some events that were previously totally unexpected in frame
windows are now susceptible to happen, so must be allowed now.
MetaFrame in src/core/frame.c now acts as the wrapper of foreign
windows created by the frames client, from the Mutter side. Location,
size, and lifetime are still largely in control of Mutter, some
details like visible/invisible borders are obtained from the client
instead (through the _MUTTER_FRAME_EXTENTS and _GTK_FRAME_EXTENTS
properties, respectively).
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2175>
Put the helper to use, in order to lift MetaWindow itself from this
accounting. As a bonus, the data itself now moved to the MetaWindowX11
private struct, since this may only happen with X11 windows (or its
Xwayland subclass).
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2175>
This may result in a view of the stack in MetaStackManager that does not correspond
to reality, since the window is already being unmanaged, there is no point either in
notifying the stack manager about it.
This slight divergence with reality in the MetaStackManager may produce a non-accurate
view if querying its state has to go through the predicted branches. Later synchronization
with the X11 stack may even this out, but the result really depends on when it is asked.
Fixes some intermittent failures in the stacking/closed-transient-only-take-focus-parents
unit test.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2175>
The meta_window_show() method internally relies on window->mapped being
up-to-date, or attempting to focus it may fail since the window is not
mapped yet, resulting on the window being mapped, but not focused as
it would be expected.
This is moot so far, since windows with frames are created sort-of
synchronously and showing them will result in the focus attempt happening
when the window is already mapped, but things will break when this
becomes an asynchronous step.
Ensure to synchronize client state before showing, so any attempts to
focus the window are able to succeed despite the initial state when
calling meta_window_update_visibility().
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2175>
We can land inside meta_window_focus() in the middle of changing the
window workspace, because some signal handler of MetaWorkspace's
"window-removed" signal triggers a focus. This can cause a crash in
`g_assert (link)` when updating the MRU list because we still think
we're on the old workspace when actually we are already removed from
this workspaces MRU list.
To avoid crashes like this, bail out of meta_window_focus() when we're
in the middle of a workspace change.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5368
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2691>
It's a bad idea to have data like this in the middle of a struct, as it
will easily cause everything behind it to be badly aligned and thus
increase memory access times.
So move all those bitfield booleans to the end of the struct.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2691>
Currently, we will notify the display about a new window being created
during the constructed phase of the GObject. During this time,
property-change notifications are frozen by GObject, so we'll emit a few
::notify signals only after the window-created signal, although
the actual property change happened before that.
This caused confusion in gnome-shell code where a notify::skip-taskbar =
true emission was seen when the property already was true inside a
window-created handler before.
In order to fix that that, we notify the window creation
post-construction
of the GObject on GInitable.init vfunc
Details
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6119#note_1598983
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6119
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2703>
If two X11 windows were the last two, we'd remove them from the stack
while unmanaging them. That'd hit an assert in
meta_stack_tracker_restack_managed(), resulting in the following crash
when Xwayland exited unexpectedly with two or more X11 windows being the
only windows on the stack:
#1 g_assertion_message() at ../glib/gtestutils.c:3256
#2 g_assertion_message_expr() at ../glib/gtestutils.c:3282
#3 meta_stack_tracker_restack_managed() at ../src/core/stack-tracker.c:1210
#4 on_stack_changed() at ../src/core/stack.c:142
#5 _g_closure_invoke_va() at ../gobject/gclosure.c:895
#6 g_signal_emit_valist() at ../gobject/gsignal.c:3456
#7 g_signal_emit() at ../gobject/gsignal.c:3606
#8 meta_stack_changed() at ../src/core/stack.c:265
#9 meta_stack_remove() at ../src/core/stack.c:324
#10 meta_window_unmanage() at ../src/core/window.c:1542
#11 meta_x11_display_unmanage_windows() at ../src/x11/meta-x11-display.c:111
#12 meta_x11_display_dispose() at ../src/x11/meta-x11-display.c:141
#13 g_object_run_dispose() at ../gobject/gobject.c:1448
#14 meta_display_shutdown_x11() at ../src/core/display.c:831
The added test specifically checks that this scenario is handled
gracefully.
Related: https://bugzilla.redhat.com/show_bug.cgi?id=2143637
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2704>
In constrast to x11, Wayland has sane handling for touch events and
allows the compositor to handle a touch event while the clients are
already seeing it. This means we don't need the REJECTED state on
Wayland, since we can also grab sequences after the client has seen
them.
So disallow moving sequences to the REJECTED state on Wayland.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2508>
It's not really a backend thing, and we'll want to profile e.g. loading
the backend too, so create it very early and destroy it very late and
let MetaContextMain own it.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2678>
With high frequency mouse devices, we would send very many configure
events per each update cycle, which had the end result that some clients
constantly re-allocating and redrawing their buffers far too often, if
they did this in direct response to xdg_toplevel configure events.
Lets throttle the interactive resize updates to stage updates, to avoid
having these clients doing the excessive buffer reallocation.
This also removes some old legacy X11 client resize throttling, that
throttled a bit arbitrarily on 25 resizes a second; it is probably
enough to throttle on stage updates for these clients.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2652>
There were some magic conditions that decided when
meta_window_constrain() was to be called or not. Reasoning about and
changing these conditions were complicated, and in practice the caller
knows when constraining should be done. Lets change things by adding a
'constrain' flag to the move-resize flags that makes this clearer. This
way we can, if needed, have better control of when a window is
constrained or not without leaking that logic into the generic
to-constrain-or-not expression.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2338>
New commands to set the number of workspaces, activate a workspace, with
and without focus, move windows to specific workspaces, and check the
stacking on a specific workspace.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2489>
When switching workspaces we previously focused on whatever window is on
top of the stack. If a window is marked as "always on top" then it would
always receive focus when switching workspaces.
Fixes#2240
Fixes gnome-shell#5162
Fixes#178Fixes#678
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2489>
We want to use the workspace MRU list to decide the default focus but
Globally Active Input clients don't call
meta_window_set_focused_internal and therefore don't update the MRU
list. Move the update to meta_window_focus instead.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2489>
When moving to another monitor the window size may change in some
cases. While unconditionally notifying a size change is not always
correct, it animates the window when moved to another monitor in
GNOME Shell.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2558>
Mutter can play sounds in some contexts and also provides an API
for libmutter users to do so using libcanberra internally.
In some specific use cases of Mutter, we would like to not depend
on libcanberra and not have any sound playing feature by default.
The changes keeps the sound player API but make it no-op if the
sound_player feature is disabled to not make it possible to break
a gnome-shell build.
See https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2270
for relevant discussion
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2375>
Same applies to MetaOutput. The reason for this is to make it possible
to more reliably know when there was EDID telling us about these
details. This will be used for colord integration.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2141>
The "activate" and "deactivate" signals on ClutterStage are used by
Cally to track the key-focus when the user is interacting with shell UI.
key-focus only gets tracked while the stage is activated.
Wayland has no concept of the stage receiving focus or not, so right now
the activation state is bound to whether there's a focus_window in
meta_display_sync_wayland_input_focus(). Since display->focus_window is
set pretty much all the time, this effectively binds activation state to
whether the stage holds a grab or not. This is almost good enough, but
it misses cases where key-focus is on the stage without a grab, for
example when keyboard-navigating the panel after using Ctrl+Alt+Tab.
It seems to make more sense to bind the activation state to whether
key-focus is set to an actor or to NULL, so let's do that instead.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2329>
The function finds a suitable logical monitor given the window
rectangle; this wasn't all that clear from the name
"calculate_main_logical_monitor".
This is in preparation for finding a new logical monitor using things
other than the geometry of the window.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2554>
Prior to this commit, barriers were created with a MetaDisplay pointer,
despite being entities related and owned by the backend. In the X11
case, it was also not hooked up to the backend X11 connection, but the
clutter one, meaning for example that the logic was active (but dormant)
also for the Xwayland connection.
Fix this by moving X11 barrier management and event processing fully to
the backend. Also replace passing a display pointer with passing a
backend pointer. Keep the display pointer around for a release, but mark
it as deprecated.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2442>
`meta_rectangle_transform()` is used in the stack to *compensate* for a
`MetaMonitorTransform` applied to a output, not to apply it again.
Change the function accordingly.
Context:
Experimenting with direct scanout on offscreen-rotated outputs revealed
that the 90/270 degree cases were actually interchanged.
Further digging revealed that we use `meta_rectangle_transform()` with
those values swapped in every single case, papering over the issue.
Either a unintuitive and unexplained `meta_monitor_transform_invert()`
was added, in which case "flipped" values would be wrong, or, in case
of Wayland buffer transforms, the values were swapped by interpreting
the Wayland enums accordingly, see commit 8d9bbe10.
Swapping the 90/270 degree values in `meta_rectangle_transform()`:
1. fixes hardware cursor positioning with flipped output transforms
2. fixes rendering issues with offscreen-rotated flipped output transforms
3. allows us to drop unexplained `meta_monitor_transform_invert()`s in
follow-up commits
4. allows us to make `META_MONITOR_TRANSFORM` and `WL_OUTPUT_TRANSFORM`
enums match again (reverting 8d9bbe10, as already done)
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2459>
Since b443bd42ac, we unmanage a wayland window when clearing its
transient parent. That's to make sure that xdg-foreign doesn't
leave the dialog around after the imported surface was destroyed.
While that behavior is sound, it is problematic to implement it
by unmanaging the window, as that happens entirely behind the
client's back.
Instead, send a close event for the window. Unless the client has
good reasons, it should honor the request. (And if it has good
reasons - like unsaved work - then effectively hiding the window
from both the user and client is probably not the best idea anyway).
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5458
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2499>
Not all windows can be minimized: X11 clients can disable the
functionality, and so do we for windows that aren't shown in
the alt-tab popup or the shell overview, so there would be no
way of getting them back.
While we make sure that we respect that ourselves (keybinding,
window menu, etc.), we don't guard meta_window_minimize(), so
clients or extensions can still minimize a window that isn't
supposed to be minimized.
That can lead to all kinds of issues, from the hidden window
being lost (as far as users are concerned) to a crash when
the minimzed window has a transient parent.
Just add an explicit check to make sure the unexpected doesn't
happen after all, and print a warning if it does.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2491>
The cursor rendering code path used by the screen cast code relies on
the cursor tracker machinery to determine where to blit the cursor
texture, but at the moment the cursor position invalidation is behind
a check for whether the shell is using a Wayland backend. (This code
path used to be Wayland-specific before 00cbcb7ba1 but has been
backend-agnostic since).
This commit removes the check for a Wayland compositor, allowing
cursor drawing to function correctly on X11 when screen casting in
embedded cursor mode.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1780
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2474>
We passed the pointer to a GError * as user data on an async I/O call.
The callback function didn't make use of it, so it was never written to,
thus remained NULL, thus was dead code. Remove it.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2446>
The event-route is never set to COMPOSITOR_GRAB nowadays, so the
condition will never be met.
Furthermore, it is expected that ClutterGrabs only happen when
events are routed normally, so the remaining NORMAL check should
already fully cover the old COMPOSITOR_GRAB case.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2436>
We already bypass wayland if there is a ClutterGrab, so the case
that used to be covered by the event-route check is already handled,
and we can just remove the obsolete check.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2436>
The code is already trying to avoid creating new laters when there
already is one for the queue type, but this wasn't working because the
ID of the later was never stored after creating a new one. This would
then result in as many laters as meta_display_queue_window() was called
and all of them would run the handler function, even if only the first
one had a non-empty window queue.
Similarly this was causing the later to not be removed if the window
queue got empty after meta_display_unqueue_window().
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2414>
Currently the signal is getting emitted accidentally, because even when
removing a window from the queue, the later handler of that queue will
still get run due to a bug. This bug is going to get fixed in the next
commit, but some things might depend on the signal getting emitted when
the visibility of a window has changed.
This change affects the behavior in two ways. First the signal is now
emitted immediately rather than from an idle. And second it now
correctly includes the window in the should_show or should_hide list.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2414>
Prior to 'compositor: Destroy actors when unmanaging', window actors
were destroyed when the compositor object was destroyed, long after the
windows were unmanaged, however, when this instead changed to happen
when unmanaging, with the original goal to avoid having these actors try
to interact with the disposed MetaCompositor instance, it caused an
issue where window actors would be indirectly destroyed as a side effect
of their parents being destroyed, which caused some fallout in the logic
handling window-close animation tracking, which relies on
meta_window_actor_queue_destroy() being called before a window actor is
actually destroyed.
Fix this by unmanaging windows before unmanaging the compositor.
From an X11 point of view, this should be harmless, since all it really
do is call XCompositeUnredirectSubwindows().
For the native backend and the common behavior, all unmanaging the
compositor instance does is destroy clutter actors, so doing so after
window actors were already cleaned up should not be a problem, as this
was the case before too.
Fixes: 35ac3a096d
Closes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5330
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2403>
