We currently track the focus of a seat in two ways: we use a list called
focus_stack to track the order in which nodes have been focused, with
the first node representing what's currently focused, and we use a
variable called has_focus to indicate whether anything has focus--i.e.
whether we should actually treat that first node as focused at any given
time.
In a number of places, we treat has_focus as implying that a focused
node exists. If it's true, we attempt to dereference the return value of
seat_get_focus(), our helper function for getting the first node in
focus_list, with no further checks. But this isn't quite correct with
the current implementation of seat_get_focus(): not only does it return
NULL when has_focus is false, it also returns NULL when focus_stack
contains no items.
In most cases, focus_stack never becomes empty and so this doesn't
matter at all. Since focus_stack stores a history of focused nodes, we
rarely remove nodes from it. The exception to this is when a node itself
goes away. In that case, we call seat_node_destroy() to remove it from
focus_stack and free it. But we don't unset has_focus if we've removed
the final node! This lets us get into a state where has_focus is true
but seat_get_focus() returns NULL, leading to a segfault when we try to
dereference it.
Fix the issue both by updating has_focus in seat_node_destroy() and by
adding an assertion in seat_get_focus() that ensures focus_stack and
has_focus are in sync, which will make it easier to track down similar
issues in the future.
Fixes#6395.
[1] There's some discussion in #1585 from when this was implemented
about whether has_focus is actually necessary; it's possible we could
remove it entirely, but for the moment this is the architecture we have.
When issuing a focus command on a specific container, users expect to
proceed it even if is hidden by a fullscreen window.
This matches the behavior of i3.
Pending state is currently inlined directly in the container struct,
while the current state is in a state struct. A side-effect of this is
that it is not immediately obvious that pending double-buffered state is
accessed, nor is it obvious what state is double-buffered.
Instead, use the state struct for both current and pending.
To query whether a container is sticky, checking `con->is_sticky` is
insufficient. `container_is_floating_or_child` must also return true;
this led to a lot of repetition.
This commit introduces `container_is_sticky[_or_child]` functions, and
switches all stickiness checks to use them. (Including ones where the
container is already known to be floating, for consistency.)
We can't arm the timer during cursor creation since the config may not
be ready yet. Instead arm the timer while applying the input
configuration, by this time the configuration has been parsed and we can
arm the hide timer.
Fixes#5686
Reset the event source after unhiding the cursor, to ensure that the
timeout starts after showing the cursor. Also remove the open coded
variant in seat_consider_warp_to_focus().
Fixes#5679
As per the Wayland spec [1]:
> The icon surface is an optional (can be NULL) surface that provides an
> icon to be moved around with the cursor.
However, as of now Sway "start_drag" signal handler does not starts the
DND session unless a non-NULL drag icons is provided. This patch fixes
it by skipping handling of the drag icon if it is null.
Fixes#5509
[1] https://wayland.freedesktop.org/docs/html/apa.html#protocol-spec-wl_data_device
Signed-off-by: Nick Diego Yamane <nickdiego@igalia.com>
wlr_drag installs grabs for the full duration of the drag, leading to
the drag target not being focused when the drag ends. This leads to
unexpected focus behavior, especially for the keyboard which requires
toggling focus away and back to set.
We can only fix the focus once the grabs are released, so refocus the
seat when the wlr_drag destroy event is received.
Closes: https://github.com/swaywm/sway/issues/5116
Previously, a tablet or touch device could report activity as a pointer
device if it went through pointer emulation. This commit refactors idle
sources to be consistently reported based on the type of the device that
generated an input event, and now how that input event is being
processed.
We are not allowed to do what we did in #5222 and pass a `NULL` surface
wlr_seat_pointer_notify_enter(), and it's causing crashes when an
xdg-shell popup is active (see #5294 and swaywm/wlroots#2161).
Instead, solve #5220 using the new wlroots API introduced in
swaywm/wlroots#2217.
Currently, when tablet input exits a window during an implicit grab, it
passes focus to another window.
For instance, this is problematic when trying to drag a scrollbar, and
exiting the window — the scrollbar motion stops. Additionally,
without `focus_follows_mouse no`, the tablet passes focus to whatever
surface it goes over regardless of if there is an active implicit.
If the tablet is over a surface that does not bind tablet handlers, sway
will fall back to pointer emulation, and all of this works fine. It
probably should have consistent behavior between emulated and
not-emulated input, though.
This commit adds a condition for entering seatop_down when a tablet's
tool tip goes down, and exiting when it goes up. Since events won't be
routed through seatop_default, this prevents windows losing focus during
implicit grabs.
Closes#5302.
Keyboard group keyboards should not call sway_keyboard_configure. They
do not have an input config and they derive their state from the
keyboards within the group.
For some reason, I got sway_keyboard_configure and
seat_configure_keyboard mixed up and thought seat_reset_device called
the latter.
Calling sway_keyboard_configure with a keyboard group's keyboard is not
supported and can cause issues. If any clients are listening to the ipc
input event, a sigsegv will occur due to not every property - such as
identifier - being wired up for keyboard group keyboard's.
This also adds an assertion to sway_keyboard_configure to ensure that
this does not occur in the future and any instances are quickly caught.
If the keyboard that triggers the reload binding is using the default
keymap, default repeat delay, and default repeat rate, the associated
keyboard group is never being destroyed on reload. This was causing the
keyboard group's keyboard not to get disarmed and result in a
use-after-free in handle_keyboard_repeat.
If the keyboard was not using the defaults for all three settings, then
it's associated keyboard would get destroyed during the reset - which
did disarm the keyboard group's keyboard. In this case, the
use-after-free would not occur.
This adds a block to input_manager_reset_all_inputs that resets the
keyboard for all keyboard groups in all seats, which will disarm them.
Since the inputs are all being reset anyway, which will reset all
individual keyboards, it is not necessary to be selective on which ones
get reset.
Add a separate per-view shortcuts_inhibitor command that can be used
with criteria to override the per-seat defaults. This allows to e.g.
disable shortcuts inhibiting globally but enable it for specific,
known-good virtualization and remote desktop software or, alternatively,
to blacklist that one slightly broken piece of software that just
doesn't seem to get it right but insists on trying.
Add a flag to sway_view and handling logic in the input manager that
respects that flag if configured but falls back to per-seat config
otherwise. Add the actual command but with just enable and disable
subcommands since there's no value in duplicating the per-seat
activate/deactivate/toggle logic here. Split the inhibitor retrieval
helper in two so we can use the backend half in the command to retrieve
inhibitors for a specific surface and not just the currently focused
one. Extend the manual page with documentation of the command and
references to its per-seat sibling and usefulness with criteria.
Signed-off-by: Michael Weiser <michael.weiser@gmx.de>
This is a small cleanup commit for removing `sway_tablet` parameters
from functions that already accept `sway_tablet_tool`, since the tablet
reference can be accessed through `tool->tablet`.
This commit renames `motion` and `axis` handlers to `pointer_motion` and
`pointer_axis`, respectively, to disambiguate them from their tablet
(and future touch) handlers. `button` is left as-is, as it is generic
across input devices.
This commit moves tablet motion logic into a seatop handler.
As a side-effect of seatop implementations being able to receive
tablet motion events, fixes#5232.
Some input rules, like `map_to_output`, are dependent on a specific
screen being present. This currently does not work for hotplugged
outputs, or outputs that are processed after the input device is
initially probed.
This commit fixes both cases, by reconfiguring inputs on each output
addition.
Fixes#5231.
This commit refactors `cursor_handle_activity` to also take the idle
source, so that it can be reused for tablet and touch activity.
Previously, the timeouts would be tracked, but the cursor would never be
un-hidden for anything but pointers.
Fixes#5169.
If a pad device for a tablet exists, reloading the configuration,
removing/reading the device or even suspending the system will recreate
the same Wayland input device multiple times.
Make sure we don't re-create the same Wayland device more than
necessary.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Adding support for the keyboard shortcuts inhibit protocol allows remote
desktop and virtualisation software to receive all keyboard input in
order to pass it through to their clients so users can fully interact
the their remote/virtual session. The software usually provides its own
key combination to release its "grab" to all keyboard input. The
inhibitor can be deactivated by the user by removing focus from the
surface using another input device such as the pointer.
Use support for the procotol in wlroots to add support to sway. Extend
the input manager with handlers for inhibitor creation and destruction
and appropriate bookkeeping. Attach the inhibitors to the seats they
apply to to avoid having to search the list of all currently existing
inhibitors on every keystroke and passing the inhibitor manager around.
Add a helper function to retrieve the inhibitor applying to the
currently focused surface of a seat, if one exists.
Extend bindsym with a flag for bindings that should be processed even if
an inhibitor is active. Conversely this disables all normal shortcuts if
an inhibitor is found for the currently focused surface in
keyboard::handle_key_event() since they don't have that flag set. Use
above helper function to determine if an inhibitor exists for the
surface that would eventually receive input.
Signed-off-by: Michael Weiser <michael.weiser@gmx.de>
This adds seat configuration options which can be used to configure what
events affect the idle behavior of sway.
An example use-case is mobile devices: you would remove touch from the
list of idle_wake events. This allows the phone to stay on while you're
actively using it, but doesn't wake from idle on touch events while it's
sleeping in your pocket.
When being created, non first seats would get through the list of devices
without the list being first initialised -> segfault.
Issue introduced with ab0248a545Fixes#4750: Crash when reloading Sway with multiple seats configured
A wlr_keyboard_group allows for multiple keyboard devices to be
combined into one logical keyboard. This is useful for keyboards that
are split into multiple input devices despite appearing as one physical
keyboard in the user's mind.
This adds support for wlr_keyboard_groups to sway. There are two
keyboard groupings currently supported, which can be set on a per-seat
basis. The first keyboard grouping is none, which disables all grouping
and provides no functional change. The second is keymap, which groups
the keyboard devices in the seat by their keymap. With this grouping,
the effective layout and repeat info is also synced across keyboard
devices in the seat. Device specific bindings will still be executed as
normal, but everything else related to key and modifier events will be
handled by the keyboard group's keyboard.
Sway has basic support for drawing tablets, but does not expose
properties such as pressure sensitivity. This implements the wlr tablet
v2 protocol, providing tablet events to Wayland clients.
Focused layers are not cleared when destroyed, they are cleared on unmap.
Giving focus to an unmapped layer surface is (1) incorrect and (2) triggers a
use-after-free.
Closes: https://github.com/swaywm/sway/issues/4517
