This API will be used by GNOME Shell to handle X11 events
in the relevant places, as a substitute to gdk_window_add_filter().
It is ATM still a bit ironic, since the Mutter X11 event handler
is itself a GdkFilterFunc, but it may move away from that eventually.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2779>
Reading upon the history of this code branch (commits 6891ce95dc
and 7a4c808e43 are most relevant), it seems this code is meant to
synchronize Mutter focus state taking the Xserver state as true.
That is, if Mutter tried to change the focus but something truncated
that action, Mutter focus will be changed to be in sync with the
Xserver again.
This sounds backwards in a Wayland session. Mutter focus should be
the canonical source, and not second-guessed from the current Xserver
focus window. These race conditions might still apply between X11
clients, so make these paths only apply in that case.
An example of this breaking can be reproduced with a Spotify and
Firefox window, moving the focus from the first to the second by
going to the GNOME Shell overview in between, and clicking the
Firefox window from there. The Firefox window will be raised, but
refuse to take focus.
It's unclear what made this an issue recently, perhaps commit
0e6395d932 since the now possibly ignored XI_FocusIn/Out events
affect this accounting of the Xserver focused window. Anyhow it
sounds better to ignore these paths for Wayland/native altogether.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2841>
This protocol is intended to let special clients create transient-for
relationships between X11 and Wayland windows. The client that needs
this is xdg-desktop-portal-gnome, which will create e.g. file chooser
Wayland dialogs that should be mapped on top of X11 windows.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2810>
On X11, the stage itself is backed by an XWindow, and moving the
input focus elsewhere will bypass any Clutter-level grabs.
This effectively allows newly opened windows to steal the focus
from gnome-shell itself, which is clearly undesirable. To prevent
that, only allow moving the X11 focus to a Window when no grab is
in place, just like commit 50e89e376 did for the stage focus.
But particularly the updating of x11_display->focus_xwindow is not
prevented. Since it's more consistent to the MetaDisplay/MetaX11Display
dual focus tracking and across Wayland/X11 backends, ensure the X11
input focus is actually set on the last focus Window after the
grabs are gone and windows became interactable again.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2832>
Windows that are decorated may get configure requests before
the frames client created a corresponding frame window and Mutter
reparented the window.
Since the configure request results in the buffer size being
used to update the window size and the window does not have a
buffer yet, these requests could mistakenly result in the client
window being given a minimal size.
In these situations, do not use the buffer size but the given
size. The window still has to undergo frame creation and
reparenting before being shown for the first time.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2588
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2605
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2808>
On Wayland sessions, this handling is unnecessary and even prone
to confusion (e.g. crossing serials are only ignored in X11-exclusive
paths, so this handling competes directly with that in MetaWaylandPointer).
Avoid it entirely there, so MetaWaylandPointer can figure out
sloppy/mouse mode focus for all Wayland/Xwayland surfaces.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2828>
In GTK this is only used for GTK clipboard/DnD selections, and
finding out whether there is a compositing manager in charge.
In Mutter, we manage our own clipboard/DnD selections, and don't
perform any rendering through GTK in the Mutter process.
So there's no special reason to let these events go through GTK,
and (related to xwayland-on-demand?) there may be race conditions
in the handling of the second feature.
There's a chance this race condition may be in Mutter, but it
does not sound worth to chase this race condition when we can
let GTK ignore these events. And it does not make sense to "fix"
gtk3 for this Mutter-only condition, when we intend to eventually
avoid it.
So, take the easy path and ignore these events.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2617
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2831>
This is a public API change. Add device/sequence parameters to this
operation, so that window dragging and resizing can stick to one
set of pointing events of them all.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
Flip the switch in using MetaWindowDrag, leaving display grab
ops and a bunch other code unused. Some places checked the grab op
and/or window in complex ways, others just checked for grab existence
and should now look for clutter ones, and others already were already
doing this in addition.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
The final effect of this boolean can now be expressed through the
META_GRAB_OP_WINDOW_FLAG_UNCONSTRAINED flag to MetaGrabOp. Use that
in the relevant places, and drop the argument.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
Now that it is called from a single place, there's a few arguments
that are unnecessary:
- button and modifiers are unused
- already_grabbed was originally added to handle grab transitions between
window menus (GtkMenus, back in the day) with display grabs. It's no
longer necessary now
- frame_action can be passed through the META_GRAB_OP_WINDOW_FLAG UNCONSTRAINED
flag
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
During grabs, it is expected that the X11 focus does not correspond
to the display's focus window, as focus should be on the stage's
XWindow instead.
This still messes up the keyboard focus even after we stopped moving
the X11 focus, because we end up with a presumed X11 focus window
of None, and as a result the stage is considered unfocused.
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5932
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2776>
We might end up with a NULL opaque_region here in some circumstances
(client deleted _NET_WM_OPAQUE_REGION, or passed invalid data or a
region with 0 rectangles), account for that when freeing the variable.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2758>
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>
Since the windows created by the frames client will have a RGBA visual, we
no longer can perform simple tests about whether the window is opaque. For
that, we will need to additionally know whether the client-side window has
a visual with an alpha channel.
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2758>
This does nothing wrt making race conditions shorter in the
X11 window manager switch case, but is a nice to have in order
to ensure an orderly shutdown of X11 stuff.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2796>
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>
Instead of passing around state using GINT_TO_POINTER() pass around a
state struct that also carries a pointer to the context. This allows
avoiding using old singletons for getting a window list.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
On the path towards clear ownership chains and always using them to find
other components, do the same for X11 client support paths too.
x11-display: Don't get backend from signleton
x11/selection: Don't get display from singleton
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>
The meta_prop_get_motif_hints() function was only used in the
old MetaUI frames code. The remaining code in mutter accesses
directly the MetaPropValue when loading properties for a window,
and does not use this API call.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2741>
Since we use XCB in the Mutter side, but Xlib in the frames client,
we cannot share the same struct definition since both libraries
will expect different type lengths (respectively, 32-bit ints vs.
longs).
Revert the changes that made both executables share the same
struct, since not both of them can get it right (and retrieve
correctly the struct with the contained flags) in reading the
Motif WM hints.
This reverts commit 2fb3c5a4f5.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2741>
These are now referenced on the frames client side (in order to
track deletable state from the client window) and the mutter side
(pretty much everything else, like figuring out if a window wants
WM decorations).
It makes sense to make this a separate header, so that we don't
need to doubly define these flags/structs.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2735>
The uninitialized fields in this event causes use of uninitialised
data as seen in valgrind:
==71864== Syscall param writev(vector[0]) points to uninitialised byte(s)
==71864== at 0x5026EBD: __writev (writev.c:26)
==71864== by 0x5026EBD: writev (writev.c:24)
==71864== by 0x6482A3B: UnknownInlinedFun (xcb_conn.c:296)
==71864== by 0x6482A3B: _xcb_conn_wait.part.0 (xcb_conn.c:551)
==71864== by 0x6482BAF: UnknownInlinedFun (xcb_out.c:469)
==71864== by 0x6482BAF: _xcb_out_send (xcb_out.c:470)
==71864== by 0x6483DD7: UnknownInlinedFun (xcb_out.c:416)
==71864== by 0x6483DD7: xcb_writev (xcb_out.c:409)
==71864== by 0x53B79B4: _XSend (xcb_io.c:587)
==71864== by 0x53BBF38: _XReply (xcb_io.c:679)
==71864== by 0x53AFFC9: XQueryTree (QuTree.c:47)
==71864== by 0x4982A5F: query_xserver_stack (stack-tracker.c:508)
==71864== by 0x4EA1F5F: g_closure_invoke (gclosure.c:832)
==71864== by 0x4ECFD45: signal_emit_unlocked_R.isra.0 (gsignal.c:3796)
==71864== by 0x4EC0129: g_signal_emit_valist (gsignal.c:3549)
==71864== by 0x4EC03B2: g_signal_emit (gsignal.c:3606)
==71864== Address 0x287d5900 is 32 bytes inside a block of size 16,384 alloc'd
==71864== at 0x4849444: calloc (vg_replace_malloc.c:1340)
==71864== by 0x53A5FE8: XOpenDisplay (OpenDis.c:240)
==71864== by 0x6100E3C: _gdk_x11_display_open (gdkdisplay-x11.c:1565)
==71864== by 0x60CF675: gdk_display_manager_open_display (gdkdisplaymanager.c:462)
==71864== by 0x49D59F1: open_gdk_display (meta-x11-display.c:1041)
==71864== by 0x49D5D64: meta_x11_display_new (meta-x11-display.c:1156)
==71864== by 0x49564AD: meta_display_init_x11_finish (display.c:743)
==71864== by 0x495679D: on_x11_initialized (display.c:818)
==71864== by 0x4D67558: g_task_return_now (gtask.c:1232)
==71864== by 0x4D67782: UnknownInlinedFun (gtask.c:1301)
==71864== by 0x4D67782: g_task_return (gtask.c:1258)
==71864== by 0x495663C: on_xserver_started (display.c:788)
==71864== by 0x4D67558: g_task_return_now (gtask.c:1232)
==71864== Uninitialised value was created by a stack allocation
==71864== at 0x49D4A59: take_manager_selection (meta-x11-display.c:640)
==71864==
To fix this, fully initialize the event struct before sending it.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2535
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2724>
Since the frames are now rendered by a separate process, we no longer
can guarantee at this point that all updates were handled. Engaging
in a new synchronous resize operation will again freeze the actor,
so sometimes we are left with a not-quite-current buffer for the
frame+window surface.
In order to ensure that the right changes made it onscreen, delay
this next synchronous resize step until the moment the surface was
repainted. This avoids those glitches, while still ensuing the
resize operation ends up in sync with the pointer.
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>
It will become necessary to track properties and changes from frame windows,
and it will be more convenient to have this managed by the common property
tracking mechanisms.
Add this source_xwindow parameter so property handler functions can check
whether the property belonged to the client Window or the frame Window.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2175>
Store the alarms in a different hashtable, and look up the MetaSyncCounter
right away. It so far avoids the MetaWindow middle man, but will also be
simpler when each window can possibly have more than one active alarms.
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>
This check dates all the way back to commit ac2aa5337d. At the time, the
window switcher was an actual X window, that could generate crossing events
if popped up under the pointer. Checking for this kind of crossing events
made sense back at the time in order not to break focus-follows-mouse as
it's been behaving for long.
But now, this UI is all Clutter widgetry, which in the worst case (X11
sessions, of course) it will update the stage window shape to make these
parts clickable. This happens in other places of code that do already
check for ignoring crossing events.
Underneath, this looked up for a Mutter-local GdkWindow of type
GDK_WINDOW_TEMP, only the main MetaFrames window matches those characteristics
nowadays, notably no window switcher popups. Since the remaining window is
never unmapped (until perhaps shutdown), the paths were functionally dead.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2175>
If the window is not managed, it's weird that it asks for _NET_FRAME_EXTENTS,
it's even weirder that mutter replies with a frame border that would only
apply if the window were managed. Stop doing the latter, and drop the
MetaUI call that calculates borders from the theme settings.
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 helper struct takes care of the handling of requests and alarms
in order to satisfy NET_WM_SYNC_REQUEST. It will be necessary to
decouple rendering of windows and frames in future commits, so each
window may need its own synchronization and accounting.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2175>
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>
Instead of having users of the test client manually deal with alarm
filters, let the test client automatically add itself as filters. This
changes the MetaX11Display a bit, to handle an array of filters instead
of a single filter.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2704>
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>
It exposed unnecessary public and private API, and used a global static
variable instead of a return value, none which was necessary. Remove
both API and use a return value for communicating to the caller.
This doesn't remove a public symbol, lets do that for GNOME 44.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2619>
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>
mutter needs GDK to use the x11 backend. It already calls
gdk_set_allowed_backends ("x11") for this purpose; however, if
GDK_BACKEND=wayland (or any other non-x11 backend possibly) happened to
be in the environment, GDK would fail to initialize at all. This would
result in mutter not registering as X11 window manager, and all X11
clients hanging.
Big thanks to Olivier Fourdan for figuring this out!
v2:
* Restore original value of GDK_BACKEND environment variable after
initializing GDK.
Bug: https://bugzilla.redhat.com/show_bug.cgi?id=2022283
Bug: https://bugs.debian.org/1008992
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2496>
In the past, barries were added to the window management X11 display
instance window table, and then special cased when iterating over the
list.
Since then, barriers, which are really part of the backend, has stopped
being added to the window hash table, instead being managed by the
backend. Lets clean up the left-over special casing that is no longer
needed.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2442>
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>
Xwayland can disappear at any time, for example during a new_async() or
read_async() call. When we eventually finalize the stream, the X11
display it was created for is gone, thus can't clean up the X11
resources. Handle this by making the MetaX11Display pointer a weak
pointer, and ignore cleaning up if it disappeared. This is fine since
the X11 server it created those resources one is gone already.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2364>
The COMPOSITOR_GRAB event route has effectively been replaced by
ClutterGrabs, which are no longer covered by the existing check.
So check for grabs as well to restore the old behavior.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2436>
Initializing the event mask, SubstructureRedirectMask in particular,
before taking the manager selection fails with BadAccess. Fix this by
initializing said mask after taking the manager selection.
This fixes `--replace`.
Fixes: eb4307c350
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2432>
Quoting Ray Strode:
we don't expose a way to explicitly save the session in gnome anymore
afaik, and I don't think it's going to show on log out because
I believe we use the FORCE flag from the log out dialog.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2370>
When an X11 window becomes an all-workspace window its `workspace` is
set to NULL before `meta_window_x11_current_workspace_changed()` is
called. The latter then checks for `workspace` being NULL (which also
happens when unmanaging) and then returns early. So this does not update
`_NET_WM_DESKTOP` to 0xFFFFFFFF. Instead it remains at the workspace the
window was on before. This was causing programs like `wmctrl` to switch
to this old workspace when activating such a window.
Fix this by checking if the window is unmanaging instead.
Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2242
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2387>
With Xwayland on demand, a number of maintenance X11 applications need
to be run first, before Xwayland starts accepting requests from the
normal clients, as soon as the WM_S0 selection is acquired by mutter.
On startup, mutter also sets a number of X11 properties that can be
queried by X11 clients.
Unfortunately, mutter acquires the WM_S0 selection before setting those
properties, so mutter and the first regular X11 client will race on
startup.
As a result, the X11 properties set by mutter on startup may not be
available to the very first X11 client when Xwayland starts.
To avoid that issue, make sure to take the WM_S0 selection last when
opening the display.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2176
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2336>
meta_window_(un)queue() was implemented with global arrays in window.c
that managed MetaLater handle IDs and lists of window queues. In order
to rely less on scattered static variables and making it clearer that
we're dealing with per display window management and not something
specific to a single window, move the window resize/calc-showing queue
management to MetaDisplay.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2264>
It's still used by e.g. GNOME Shell to produce fallback icons for X11
applications that doesn't come with a .desktop file. Geometry stays in
the generic class because it's used for minimize animations and is
configured by the panel (e.g. the one in gnome-shell-extensions).
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2264>
Since every input stream now uses its own window, the X property used to
transfer the data no longer has to be unique, so we can stop generating
those unique names. This avoids creating a new atom for every transfer
since those are never freed, neither on the shell nor on the server
side. Also don't unnecessarily duplicate other strings that are
(almost) never used and get them from the atom in the rare case when
they are needed.
Fixes https://gitlab.gnome.org/GNOME/mutter/-/issues/1328
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1812>
When there are two (or more) concurrent XConvertSelection requests with
the same target, selection and window and the data is large enough for
SelectionNotify events to overlap. This can result in the affected streams
being considered completed without any data being transferred.
While regular mutter/shell code does not make use of concurrent
XConvertSelection requests with the same targets, some extensions might.
Such as for example a clipboard manager that like the built-in clipboard
manager tries to read the selection on owner-changed.
One potential solution would be to make sure the event is for the correct
property, but not all clients seem to support concurrent requests for the
same targets but different properties on the same window.
This commit instead changes the streams to use their own window which
seems to be more widely supported.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4034
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1812>
This is a preparation for each input stream creating its own window. It
moves deleting the property from meta_x11_selection_input_stream_xevent
where it can run after the stream has been finalized to a spot where
the stream still exists. Use an error trap in case the property was not
set by the client, such as when the conversion failed.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1812>
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>
This old handling of session files looked on ~/.mutter, which has
been unused and unsupported for a long time. It also had paths were
the GError was leaked. Fix both by dropping the legacy code, and
falling back to the common error paths.
CID: #1502682
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2061>
This code sneaked unconditionally, even though we can disable
tracing code with -Dprofiler=false. Add some COGL_HAS_TRACING
checks so that this code is also optionally built.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1951>
