The wl_pointer.axis_discrete axis (applicable to wl_seat <= v8) is
meant to be sent together with wl_pointer.axis events in the same
frame. And the wl_pointer.axis_value120 event replaces it in
wl_seat >= v9, but has the same relation with the other information
available in a frame.
This emission should not be conditional to anything, so drop the
various checks leading to maybe sending wl_pointer.axis or not.
This fixes emission of wl_pointer.axis in conjunction with discrete
events, for some combinations of versions and (non)value120 mice.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3642>
Unveiled by commit e0c4b2b241 ("backends/native: Mark the emulated smooth
scroll event as such"). The sudden "lack" of smooth scroll events (Used by
Clutter to forward v120 events) made it evident we silently ignore Clutter
discrete events, as we don't send wl_pointer.axis_value120 for these.
Fix this by assigning a value120 value to discrete scroll events. This
makes wl_pointer.axis_value120 events actually sent on non-v120 mice.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3642>
meta_window_handle_ungrabbed_event() triggers the show of the window menu in
gnome-shell via meta_window_show_menu() on hold of Meta + right mouse button
click.
Since meta_display_handle_event() was refactored lately and now forwards a
lot more events to Clutter (including the one triggering the window menu),
gnome-shell now sees this event after the menu has opened, figures that the
source-actor is outside of the menu, and immediately closes the menu again.
This is the correct behavior from the PopupMenuManager on the gnome-shell
side, it is the responsibility of the event handler that opens the menu (aka
meta_window_handle_ungrabbed_event()) to return CLUTTER_EVENT_STOP and stop
event propagation.
So fix this issue by adding a return value to
meta_window_handle_ungrabbed_event() and stopping event propagation in case
the event opened the window menu.
While at it, also return CLUTTER_EVENT_STOP for events triggering window
drags, so we can drop the extra check for that in
meta_display_handle_event().
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3623>
For each libinput scroll event we generate two clutter events
(continuous and discrete), one of them marked as emulated. libei
explicitly specifies that emulation of scrolling must be done in the
client (if desired) so drop the emulated one.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3637>
`meta_window_set_user_time()` will not update the window's
user time if it timestamp in the argument is before the
currently saved timestamp. However, when trying to work around
problematic timestamps, this is exactly what needs to be done.
So force the update to happen by setting the "is user time set?"
flag to false.
Fixes: 8f3da9f68a ("Use meta_window_set_user_time for setting user time consistently")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3027>
priv->current_drag is the property that
meta_compositor_get_current_window_drag() and therefore also
meta_display_is_grabbed() bases its check on. We use
meta_display_is_grabbed() to select which cursor to use (window cursor
vs root cursor) when updating the cursor in MetaCursorTracker.
Since meta_window_drag_begin() sets a new cursor, and therefore triggers the
cursor tracker to update the current visible cursor, we should set
priv->current_drag before the call to meta_window_drag_begin(). This makes
sure the cursor tracker sees that there's a window drag and changes the
cursor right away when the window drag begins (instead of doing so on
subsequent pointer events).
Fixes: 525ed1166c ("wayland/pointer: Unset current surface during window drags")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3630>
This is used as the minimum refresh rate in the variable refresh rate
range.
This value is expected to be found in the DisplayPort and eDP EDID of
every monitor that supports variable refresh rate.
It is also found in the HDMI EDID of some monitors that support
variable (FreeSync), but most likely not all of them. The rest require
parsing the AMD vendor extension which libdisplay-info doesn't
support.
No fallback is implemented for cases where libdisplay-info support is
disabled.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3576>
Find a surface actor that meets the criteria to drive the refresh
rate for the view. If a new surface actor is found, add a
reference to it and request frame synchronization to be enabled
for the relevant MetaRendererViewNative.
Whenever the surface actor schedules a repaint or an update, and
in case frame synchronization is enabled for the
MetaRendererViewNative, schedule the update to occur "now". This
effectively makes the surface actor's frame rate drive the refresh
rate of the monitor.
If the actor is frozen or destroyed, it is no longer expected to
schedule repaints or updates and should stop driving the refresh
rate.
When there is no surface actor to drive the refresh rate, request
frame synchronization to be disabled for the MetaRendererViewNative.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1154>
This makes all stage updates that result from applying the pending
state of a Wayland surface emit an "update-scheduled" signal in the
context of the relevant surface actor.
A common case where an "update-scheduled" signal is needed is
when applying "empty" client commits. In this case a
"repaint-scheduled" signal would not be emitted since the commit
doesn't trigger a repaint. However, it is still important to add
handling for such updates with variable refresh rate when the
releavnt actor is also driving the refresh rate.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1154>
This function allows scheduling a stage update in the context of a
surface actor and emit the "update-scheduled" signal. This signal is
similar to "repaint-scheduled", but can be used to be notified of
updates that do not necessarily result in a repaint.
With variable refresh rate, any update potentially affecting the
frame pacing of a surface actor needs to be handled differently
depending on whether that surface actor drives the refresh rate or
not.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1154>
Frame synchronization is enabled for a view as long as it's
applicable to be enabled. It is considered applicable if it's both
requested for the onscreen and if the onscreen uses a CRTC which is
configured with a variable refresh rate mode.
When frame synchronization is enabled, it enables both the the variable
scheduling mode of ClutterFrameClock and the variable refresh rate
property for the CRTC.
Changes in the frame synchronization mode are applied asynchronously,
before the next frame is drawn.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1154>
Add variable refresh rate output modes for connectors that are VRR
capable when VRR is not disabled for the GPU.
Variable refresh rate output modes are sorted before their fixed
refresh rate counterparts. They are also marked as the preferred mode
for the output between the two.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1154>
When VRR is not disabled for a GPU, create two variants of every
display mode: one with fixed refresh rate and another with variable
refresh rate.
The variable refresh rate modes are not used yet. They will be used
in a following commit.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1154>
This can be used to disable VRR in specific drivers and hardware
combinations where it is found to be problematic.
No default rules are added for now to encourage testing.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1154>
Require the "variable-refresh-rate" keyword under the
"experimental-features" gsetting to enable the feature for now.
It would no longer be required once the experience with variable
refresh rate is good enough for general use and handles all common
use cases well.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1154>
Use a sufficiently low refresh rate to calculate the CRTC deadline
when variable refresh rate is enabled. This is done to avoid cursor
updates from driving the monitor refresh rate.
It's not great solution and is sometimes not enough, but it avoids
stutter in the main content as a result of cursor movement in most
cases.
The unfortunate downside of this approach is that cursor movement
would usually only update with the main content and would not be
smooth when the main content updates are not frequent enough.
A better solution may use an approach similar to LFC (Low Framerate
Compensation) to insert cursor-only updates between updates of the
main content, but achieving adequate results with an approach of this
nature requires more research and experimentation.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1154>
It is not trivial to accurately estimate the expected presentation
time with variable refresh rate, and not doing so only affects debug
prints.
No change in behavior for now because the expected presentation time
is always calculated. A following commit will introduce a case where
it is not.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1154>
Add functions to update and monitor the value of the "VRR_ENABLED"
KMS property.
This requires the addition of functions to process CRTC property
updates in both the atomic and the simple KMS backends. The
implementation is similar to the implemention of processing
connector updates.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1154>
Commit d48129f5ee broke the displaying of our own drag cursor during window
drags, as now the window cursor is always used, even during stage grabs
(window grabs are just a kind of stage grab).
To fix it, while not regressing on the intention of the other commit, unset
the MetaWaylandPointer surface in case a window drag is active (instead of
all kinds of grabs) by checking via meta_display_is_grab().
Fixes: d48129f5ee ("wayland: Fix pointer cursor during Wayland grabs")
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3316
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3624>
Move the bulk of the implementation inside MetaWaylandPointer
files, like it happens in other places (e.g. MetaWaylandTabletSeat).
This avoids MetaWaylandPointer struct peeking from outside.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3627>
The _MUTTER_FRAME_EXTENTS need to have the correct size before the
window is shown, otherwise the client window size will effectively have
the headarbar height subtracted when initially syncing the frame/client
geometries.
This reverts commit f10b3eac62.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3628>
QueryDeviceString can successfully return NULL. The convention however
is that when NULL is returned, the error will be set.
This commit makes the returned string an output parameter which allows
us to return the success status and have the error set accordingly.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3614>
The convention is that when a function returns FALSE or NULL, the error
will be set. In this file we call set_egl_error but it might not set an
error. Code of the form
if (egl_do_thing (..., &error))
use_error (error);
will crash in those cases.
This commit makes sure we always set the error even if EGL doesn't give
us an error.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3614>
We depend on Gio for many introspection features (GSettings, GFile...)
without this we'd end up not having many symbols being exposed.
And errors such as
Warning: Meta: meta_display_add_keybinding: argument settings:
Unresolved type: 'GSettings*'
As per previous commit we now have this dependency implicitly, but still
it's better to make it clearer in case Clutter would drop it.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3620>
This is added as a hint so that the caller can optionally use it, e.g.
in the case that a window drag is driven by the mouse. This will be used
to more accurately follow the drag position, other than starting at the
current pointer position.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3546>
Pointer constraints obey to logical pointer focus changes, and looking
up the current surface in order to maybe enable them is getting ahead
of itself, since the pointer focus might differ from the current surface
due to other factors (e.g. grabs).
Change the code checking whether constraints should be enabled to again
check the pointer logical focus, this will be influenced by the
MetaWaylandEventInterface mechanism, and correctly reflect the logical
state accounting for those factors.
Fixes: 125ba92169 ("wayland: Port pointer constraints to using MetaWaylandEventInterface")
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3303
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3618>
Currently, we don't handle too well the removal of a MetaWaylandEventInterface
during meta_wayland_event_interface_invalidate_all_focus(), since the
MetaWaylandEventInterface may be freed at an intermediate point in that function
while handling the focus change for all input devices.
Turn this invalidate_all_focus() function into a MetaWaylandInput method, and
always ensure to use the currently effective MetaWaylandEventInterface when
resetting the focus for each device.
This fixes the situation through handling reentrancy naturally, a focus
sync (say, triggered by a grab) would reset a device focus (say, pointer), which
would remove an event interface (say, a pointer constraint), which would
invalidate_all_focus() again underneath using the new effective
MetaWaylandEventInterface. When that is done, the initial invalidate_all_focus()
call would re-apply the same focus to the same currently effective
MetaWaylandEventInterface, resulting in a no-op for the remainder of the function.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3618>
Even though the logical focus is typically business that only the
MetaWaylandEventInterface mechanism minds about, there are some pointer
subsystems that want to look this up, as opposed to the current surface.
Add a getter to make this easier, without struct peeking.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3618>
This also removes some g_return_if_fail's because the test suite expects
to be able to create arbitrary KmsUpdates even if they don't make sense
for the real state. We just get lucky that the test suite isn't
constructing updates with color space and hdr changes, yet.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3552>
Currently querying support for some output features is done partially
through the OutputInfo and partially via KMS CRTC and Connector objects.
Let's be consistent and use OutputInfo always which works with all
backends and backend types.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3552>
We're currently pretending the gamma LUT has another size. This becomes
a problem when we try to reset the LUT to passthrough, create an
identity LUT for it and it has a size that the kernel doesn't accept.
We do track the size and have utility for creating the LUTs, so let's
just use them.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3552>
The kernel doesn't let us set gamma to passthrough with the legacy API
so we have to trick a bit and create an identity LUT, and also when we
read the KMS state, detect when an identity LUT is active.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3552>
The frame size_allocate() will set it correctly once show() is called by
the window tracker.
This is less code and also help reduces the chance of a brief visual
glitch in fullscreen games during startup. If the window is initially
still decorated the gray area would still show up until the next redraw,
which due to loading times can take a while.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3608>
Relying on the content size_allocate() to determine the content position
can fail in situations where the position of the content has changed,
but not its size.
This happens for example when the window initially is sized fullscreen
height + headerbar height while not considered fullscreen yet. Then when
the window is resized to just the fullscreen height and marked as
fullscreen, the content size has not changed and size_allocate() is not
called on the content. Thus the previous position which assumes the
presence of a headerbar still applies. As a result the window is shifted
down, revealing a headerbar sized area showing the gtk window background
color.
This issue can be avoided by using the frame's size_allocate(), which
gets called in response to all relevant events, such as any headerbar
size changes, headerbar visibility changes, window resizes and
fullscreen status changes.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2937
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3608>
Allows to mark a wayland client window as a DOCK window. The reason for
this is that in Gala (elementary OS's window manager) we would like to
continue using GTK apps as panel and dock on wayland.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3612>
Assigning the corresponding stack layer of DOCK windows is currently X11
specific, because there is no way for wayland clients to set the DOCK
window type. This is about to change, so move the code to the generic
layer handling.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3612>
adaita-icon-theme cleaned up its cursor set, and now only provides
names defined by GTK/CSS. Update the cursor-hotplug test to not
use legacy cursor that will fail with a recent cursor theme.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3613>
meta_window_update_monitor() can emit "::highest-scale-monitor-changed",
and we connected to that signal right before. Let's avoid calling
meta_wayland_surface_notify_highest_scale_monitor() twice and move the
g_signal_connect() for that signal and the initial call to
meta_wayland_surface_notify_highest_scale_monitor() to happen after
meta_window_update_monitor().
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3598>
Turns out there is a better solution: Almost always, MetaWindow already has
an idea on which monitor it will be, even if it isn't positioned yet. Since
the last commit we're now using that monitor for setting the
highest-output-scale of the window, so this fallback is no longer necessary.
While we could keep this fallback around and also return a valid scale in
case the surface is not even mapped yet, this means we report fractional
scale twice for new surfaces: Once from
wp_fractional_scale_manager::get_fractional_scale() (here we'll enter the
fallback), and a second time (this time with correct scale) right after
creating the MetaWindow.
Note that wp_fractional_scale_v1 doesn't specify that a preferred_scale
event must be sent immediately after
wp_fractional_scale_manager::get_fractional_scale(), so we can safely remove
the fallback.
This reverts commit 8cfbdb4313.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3598>
MetaWindow always tries to have a main monitor: If the frame rect is empty
and the window has not been positioned, in meta_window_constructed() we fall
back to asking the backend for the current monitor, and in
meta_window_wayland_update_main_monitor() we fall back to
meta_window_find_monitor_from_id(), which then falls back to the primary
monitor.
In general this means that window->monitor is always set as long as there is
a monitor around.
For getting the highest-scale-monitor the window is on, we currently rely
completely on the frame rect. If the frame rect is empty, we set the
highest-scale-monitor to NULL. Since we usually know though which monitor
the window is, or will be on, and window->monitor is even set to that, we
can just fall back to window->monitor for the highest-scale-monitor.
This makes sure ::highest-scale-monitor-changed is emitted right after the
window is created, and it's set to the correct monitor that the window will
be on. This in turn means that we can send a correct wp_fractional_scale
fraction_scale event to clients right away.
https://gitlab.gnome.org/GNOME/mutter/-/issues/3262
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3598>
The existing comment tells us this is necessary:
> there may be drawing between the last damage event and the
> XDamageSubtract() that needs to be flushed as well.
But the commit message for 551101c65c also tells us that
synchronization is necessary before-update. Assuming both are correct
then it needs to be done in both places.
I did try optimizing out the second sync to only do it if damage
arrived during the update, but that doesn't seem to be the issue.
The damage event is arriving before the update starts and it's some
secondary changes within the damage region running late that need
flushing. So this means the client is reporting damage more frequently
than the frame rate and we're ignoring the secondary damage reports
for efficiency (XDamageReportBoundingBox), which is still a good thing.
Fixes: 551101c65c ("compositor-x11: Move synchronization to before-update")
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2880
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3590>
Do not include it at header side as it is not part of the installed headers.
Only keep it in cogl-gl-headers.h as it is a private header.
Add it to all the source files that depend on it.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3593>
This change adds modifier-aware screencasting support to Mutter.
Implicit modifier support is kept for backward compatibility and the
code fallbacks to implicit modifiers in case any new functionality added
for explicit modifier support fails.
The advertised modifiers are retrieved by a call to
eglQueryDmaBufModifiersEXT() function. The "external only" modifiers are
excluded as Mutter uses the buffers created with the explicit modifiers
as renderbuffers. Support for implicit modifiers is checked with a test
allocation since there are drivers that do not support them.
This change also removes various implicit modifier support checks that
disable DMA-BUF screen casting support globally as they are no longer
needed. DMA-BUF support for screencasting is determined by the available
formats and modifiers case-by-case now.
It also effectively enables DMA-BUF screencasting on NVIDIA hardware as
well since GBM buffer objects with linear modifiers are no longer used
by default to create a renderbuffer object for screencasting.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3537>
meta_render_device_gbm_allocate_dma_buf() function is updated to take a
list of modifiers. If no modifiers are specified, the modifier is
selected by the allocator, and implicit modifiers are used to import the
created DMA-BUF.
Co-authored-by: Jonas Ådahl <jadahl@gmail.com>
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3537>
Currently, we blindly apply the transformation matrices of all parent
actors when calculating the absolute coordinates. This means if this
function is called while the window actor containing the surface is in
the middle of a transition (e.g. window open animation), it may return
incorrect values. As this function is used for calculating pointer
confinement bounds for a specific surface, this will result in incorrect
bounds value being used if pointer constraints are applied by the
application at the same time the window is created and the mouse is
inside the surface's bounds when it's created.
Fix this by only applying transformation matrices up to the window actor
of the surface and then calculating the absolute coordinates by adding
the position of the window actor.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3585>
They are float in libdisplay-info and our own EDID parsing also returns
a float but when then converted both to an integer. Especially the min
luminance can be <1.
We also don't need a variable for indicating presence of a CTA Static
Metadata block. The values are all zero if it is absent.
Found by Dor Askayo.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3574>
The function was used only once so just move it content where it is
called. It allows us to drop more cairo paths from the API surface even
if it is not part of a public api
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3581>
If we don't have a monitor for a surface - e.g. because the surface is
not mapped yet - return the highest scale of all outputs. This makes us
send a preferred scale before a client draws its first frame. The highest
scale is always correct in single monitor cases and arguably a good
option otherwise as scaling down usually looks better than scaling up.
Note that this is currently only used by the fractional scale protocol,
but will also be used for the core `send_preferred_scale()` once we
implement it.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3217>
With all early "goto out" paths bypassing wayland, we can pretty
much avoid the goto and use early returns in this function. This
will hopefully improve readability.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
We've so far returned FALSE (i.e. PROPAGATE) here, somehow
oblivious of the fact that the core event handler would stop
all non-gesture events directed to windows.
Incorporate this knowledge there, in order to be able to
streamline this piece of event handling in core/ code.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
This is Wayland specific code, handle it directly in MetaWaylandPointer.
This also fixes issues with the crossing event itself managing to reach
the window occluded by modals.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
With Wayland popups and drag-and-drop using grabs, we
should let window cursors prevail when there is one
in effect.
Also, resort always to the actor as known by the
stage. This fixes the cursor lookup right after crossing
events induced by grabs, e.g. right clicking on the
gtk4-demo textview without motion would keep the I-beam
cursor, now results on the right actor/cursor for the
menu being picked.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
Enable grabbing input for popups, and drag-and-drop. Since the very
switch to using ClutterGrab underneath Wayland grabs will challenge
assumptions in existing code, these had to change in one go. A notable
one is that meta_display_windows_are_interactable() is not 100% true
anymore for xdg_popups, at least not the same.
Another change happening in lockstep is MetaDnD no longer having
to funnel events to Wayland, since the grab triggered by Wayland DnD
is now a cause of "compositor grabs", and will naturally receive events
as long as it hold. while "modal".
A number of ad-hoc checks for grabbing state has also been dropped
from src/wayland/ internals, since again Wayland grabs are a reason
for Clutter grabs, plus the mechanism itself will already take care
of focus loss and restoration.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
Add the mechanism to integrate MetaWaylandEventInterface with grabs,
callers may now specify whether a grab is required, in which case
one is created, shared by all the event interface stack.
ClutterStage grab state is also tracked, so the MetaWaylandEventInterface
in charge will focus or unfocus depending on whether input should be
handled (if ungrabbed, or grabbed by the MetaWaylandInput itself), or
not (if grabbed by something else).
At the moment nothing uses this mechanism yet, later commits will add
the first users.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
Now that the backend handles 0-size regions naturally and MetaWaylandPointer
avoids sending wl_pointer.motion on unchanged coordinates, we can use the
default motion handler for the locked pointer constraint.
And since that is the only difference with the pointer constraint event
interface, we can unify them both into a single MetaWaylandEventInterface
handling focus for them both.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
The small catch is that MtkRegion (and pixman regions) "optimize away"
0-size rectangles, so a 0-sized region will always be seen as having
a 0,0 origin. We don't want that, so transfer the origin separately from
the region.
While at it, make the Wayland pointer lock use one such 0-size region,
to avoid the 1x1px wiggle room that it currently has (accounting for subpixel
motion).
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
While every kind of input is seen as coming from the Virtual
Core Pointer in the X11 case, we can largely abstract away from
that fact, and lock XDnD pointer input to the most plausible
source (e.g. a device with a pressed button), instead of only
working with pointer input.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
This collection of event handlers is the most special of them all, as
they want to unset any pointer/touch/stylus/keyboard/pad/etc focus,
and handle events from a selected device/sequence combination through
the MetaWaylandDragDest interfaces.
The same interfaces also replace the MetaWaylandKeyboardGrabInterface
in effect that handled DnD action changes.
On the XDnD special grab side, we mainly need to let the current
client (i.e. the drag source) keep receiving input events, as they
drive the DnD operation from the X11 realm.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
This is again a grab interface that mostly wants to meddle with focus,
logically setting a NULL surface if the surface client does not match
the popup client.
Since popups are meant to naturally work with any input device, the
code has been refactored to not involve the MetaWaylandPointer directly
in MetaWaylandPopup creation or getting the top popup surface (memory
management was shuffled), or compressing multiple grabbing xdg_popups
together (the existing grab maintains a single MetaWaylandEventHandler
for all).
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
Besides the pointer locking/constraining mechanism, these grab interfaces
were more of a focus tracking mechanism, revoking the constraints when
the conditions didn't meet.
This can be handled pretty similarly to keyboard grabs with the new
interface, with the added bonus that we can chain up to let the
parent/default handler handle the events themselves, without poking at
MetaWaylandPointer API.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
