This fixes the issue of the display freezing on reload with
wlroots#1545.
On master, all output configs are applied on reload. This may cause an
output to have its config applied up to three times, instead of just
once. The three cases are: output name, output identifier, and wildcard.
Not only is this inefficient, but it can cause swaybg to be spawned and
immediately killed.
However, swaybg requires two roundtrips of wl_display (to obtain needed
globals) before it enters its normal event loop. Modesetting will
roundtrip the wl_display. Without modesetting, waitpid for killing
swaybg could block infinitely due to swaybg being blocked by
wl_display_roundtrip.
This only configured an output once. It either uses the wildcard config
or creates an empty wildcard config and applies that. This also fixes a
bug where an output would not be reset when there is no output config to
apply to it.
On the DRM backend, if an output is dpms'd off and a different output is
hotplugged, the CRTC for the output is reclaimed. When modesetting an
output without a CRTC, a CRTC will not be given to an output that is not
desired to be enabled. This splits setting the dpms state in
apply_output_config. If the output should be dpms on, the it is enabled
before attempting to modeset. Otherwise, it is dpms'd off after setting
everything else.
This also adds DPMS_ON to the default output configs.
In seatop_move_tiling, it is possible to cause a stack overflow by
dragging a container into one of its descendants. This disables the
ability to move into a descendant.
This allows the focused inactive tree node and visible workspaces to be
changed while a surface layer has focus. The layer temporarily loses
focus, the tree focus changes, and the layer gets refocused.
When moving a descendant of a tabbed or stacked container, it is possible
for the target node to be the node being moved. This causes a segfault in
`handle_finish` since the node will be detached and then attempted to be
attached to it own parent, which is NULL due to the detach. In this
case, the target node should not be set to the node being moved, but the
parent of the node. This also allows for a descendant of a tabbed or
stacked container to be dragged out of the tabs/stacks and to be a
sibling of the tabbbed/stacked container, which was not previously
possible.
It is possible for `wlr_surface_is_subsurface` to return true, but
`wlr_surface_from_wlr_surface` to be NULL. This adds a NULL check to the
value returned by `wlr_surface_from_wlr_surface` and breaks out of the
while loop in `subsurface_get_root_coords`.
In handle_cursor_motion, the timestamp passed to
`wlr_relative_pointer_manager_v1_send_relative_motion` should be
microseconds (not milliseconds) according to relative-pointer-v1 spec.
When a layer surface is focused, `seat_get_focused_workspace` will be
NULL. This changes `workspace_get_initial_output` to use output of the
focus inactive. If the focus inactive is also NULL, then either the
first output or the noop output will be used as fallbacks.
This aborts sway and displays an error message about XDG_RUNTIME_DIR
not being set without initializing the wl_display or logging any other
information.
This fixes a few misc memory leaks reported by asan:
- Items of `config->config_chain` are now freed instead of just the list
itself
- `bar->swaybar_command` is now freed
- The result returned by a seat subcommand is now returned instead of
leaked
If the active xkb_layout does not have a name, use `NULL` instead of
`json_object_new_string(NULL)`. This also makes it so swaymsg will pretty
print this as `(unnamed)`.
If `repeat_rate` or `repeat_delay` is set without the other being set,
the default was being used for both. This changes the logic to respect
the value given and use the default for the other when only one is set.
If the bar was set to "invisible" and subsequently "toggle" was send twice, the
new mode was never set and the bar->mode was double freed.
Fix this by not requiring the bar->mode to be "hide" and instead show it
unconditionally, because it was either hidden or invisible.
Fixes#3637
It is possible to make the title bars have a zero pixel height while
stacked, by using a blank font and no padding. This causes a division by
zero when attempting to calculate the child index in
container_at_stacked, which then results in a segfault when attempting
to access the child at that bad index (INT_MIN). This just skips the
check to see if the cursor is over a title bar of a child of a stacked
container when the title bar height is zero since there will be no title
bars.
sway-bar(5) documents `modifier none`, which comes from i3. This
implements the functionality for `modifier none` since it was not
previously implemented. The bar modifier toggles visibility of the bar
when the bar mode is set to hide. When the bar modifier is set to
`none`, the ability to toggle visibility of the bar will be disabled.
Since a tablet tool provides the WL_SEAT_CAPABILITY_POINTER capability,
sway will attempt to use the xcursor manager to set a cursor image. If
the tablet tool was the first (and possibly only) device to provide the
capability for the seat, the xcursor manager was not being configured
before attempting to set a cursor image. This was due to
`seat_configure_xcursor` only being called in `seat_configure_pointer`.
Since the xcursor manager was NULL in this case, it would cause a
segfault when attempting to set a cursor image. This adds a call to
`seat_configure_xcursor` in `seat_configure_tablet_tool` to ensure that
the seat has a xcursor manager.
Since `load_include_config` compares against the realpath of a config
file when checking if a config has already been added, the main config's
realpath has to be added to the config_chain.
However, includes from the main config should be processed relative to
the path given to allow for symbolic links. This stores the realpath in
`config->config_chain`, but uses the given path for all other
operations.
When both options and positional arguments are given, sway would print
the error `Don't use options with the IPC client`. Over the past
several months, it seems like users are including this error message in
issues instead of a debug log due to not understanding that the error
message means there is an issue with their command.
This makes the error message more verbose and will hopefully make it so
more users understand that the message is not a bug in sway, but with
the command used.
Since `load_include_config` compares against the realpath of a config
file when checking if a config has already been added, the main config's
realpath has to be added to the config_chain.
wlr_xdg_popup_destroy will destroy popups, so we need to walk the tree
carefully. It's enough to just destroy all direct children, since destroying
the parent will also destroy all children.
If output_cmd_background is given a valid mode as the first argument,
then there is no file given and an error should be returned.
join_args should not be called with an argc of zero since it sets the
last character to the null terminator. With an argc of zero, the length
is zero causing a heap buffer overflow when setting the byte before the
start of argv to '\0'. This probably will not ever generate a segfault,
but may cause data corruption to whatever is directly before it in
memory. To make other such cases easier to detect, this also adds a
sway_assert in join_args when argc is zero.
This fixes a double free in cmd_workspace_gaps when the amount given is
invalid. The end pointer from strtol is part of the argument and should
not be freed. Freeing the end pointer could result in a double free or
bad free depending on whether or not the end pointer was at the start of
the argument
This removes quote stripping for `exec_always` in `execute_command`.
Since `exec_always` commands will be deferred in the config and
processed by `execute_command`, the quotes need to be left intact
like they are for `exec`.
This fixes the failure condition for the wordexp call in
load_include_configs. The only success value is zero. Since the error
codes are positive, having the check be less than zero was causing
segfaults on failure when accessing the words.
If a seat does not exist in seat_cmd_cursor, do not create it. A seat
without any attachments is useless since it will have no capabilities.
This changes `input_manager_get_seat` to have an additional argument
that dictates whether or not to create the seat if it does not exist.
This allows for `-` (hyphen) to be used as an alias for the current seat
while sway is running. This alias was chosen since it is unlikely to
interfere with any desirable seat identifier
This changes the `pointer_constraint` command to be a subcommand of seat
to allow for per-seat settings. The current implementation that is not a
seat subcommand will only operate on the current seat and will segfault
in the config due to `config->handler_context.seat` only being set at
runtime.
This also allows for the wildcard identifier to be used to alter the
pointer constraint settings on all seats and allows for the setting to
be merged with the rest of the seat config.
Updates sway.5 to include information on the usage of the `--whole-window` option in the context of the `bindsym` command, which modifies mouse bindings to allow them to operate over the whole window instead of just the titlebar. Also includes the disclaimer about mouse bindings only working over the title bar.
Also fixes the escaping of the `BTN_LEFT` and `BTN_RIGHT` key mention.
Add notes on --border and --exclude-titlebar
Update the flags for bindcode command.
This cleans up the log when sway fails to read a config file. The
following changes have been made:
- A missing error message has been added to the log when the config file
is a directory instead of a regular file
- In main, `goto` statements have been added after the `sway_terminate`
calls instead of wrapping every block in `if (!terminate_request)`
- Unnecessary NULL-checks around calls to free in `main` have been
removed
- Deferred command execution has been extracted to a separate function
and the `Running deferred commands` log message will not be shown when
there are no deferred commands.
Add a sentence to sway-output.5.scd to highlight that the cursor can
only be moved between immediately adjacent outputs.
References issue #3529
Signed-off-by: Peter Grayson <pete@jpgrayson.net>
Don't access xdg_surface->toplevel if xdg_surface->role is equal to
WLR_XDG_SURFACE_ROLE_NONE, since this could lead to crash. The same
checks are added for xdg_surface_v6.
Fixes#3311
Just a convenience function that improves readability of the code.
Other things worth noting:
* container_get_siblings and container_sibling_index no longer use the
const keyword
* container_handle_fullscreen_reparent is only ever called after
attaching the container to a workspace, so its con->workspace check has
been changed to an assertion
The goal here is to center fullscreen views when they are both too small
for the output and refuse to resize to the output's dimensions. It has
the side effect of also centering the view when it's too small for its
container.
Example clients that have this behaviour are emersion's hello-wayland
and weston.
It works by introducing surface_{x,y,width,height} properties to the
container struct. The x and y represent layout-local coordinates where
the surface will be rendered. The width and height are only used to
track the surface's previous dimensions so we can detect when the client
has resized it and recenter and apply damage accordingly.
The new surface properties are calculated when a transaction is applied,
as well as when a view resizes itself unexpectedly. The latter is done
in view_update_size. This function was previously restricted to views
which are floating, but can now be called for any views.
For views which refuse to resize *smaller* than a particular size, such
as gnome-calculator, the surface is still anchored to the top left as
per the current behaviour.
In addition to removing unused code, two minor problems are fixed:
(1) `resize set` and `resize adjust` did not error when given
too many arguments.
(2) `orientation` was incorrectly overridden to be 'U' for
scroll events in the swaybar tray `handle_click` function.
This removes the call to `root_scratchpad_show` from
`root_scratchpad_remove_container` and places it in the
`cmd_move_container`. This also moved the IPC `window::move` event to
`cmd_scratchpad`.
Modifier handling functions were moved into sway/input/keyboard.c;
opposite_direction for enum wlr_direction into sway/tree/output.c;
and get_parent_pid into sway/tree/root.c .
This commit mostly duplicates the wlr_log functions, although
with a sway_* prefix. (This is very similar to PR #2009.)
However, the logging function no longer needs to be replaceable,
so sway_log_init's second argument is used to set the exit
callback for sway_abort.
wlr_log_init is still invoked in sway/main.c
This commit makes it easier to remove the wlroots dependency for
the helper programs swaymsg, swaybg, swaybar, and swaynag.
This add errors from calls to `libinput_device_config_*_set` to the
debug log. This may be useful when looking at issues related to input
devices and config settings not working.
This extends `input <identifier> events toggle` to allow for an optional
list of modes to toggle through. If no event modes are listed, all
supported modes are cycled through (current behavior). If event modes
are listed, they will be cycled through, defaulting to the first mode
listed when the current mode is not in the list. This modes listed will
also not be checked to see if the device supports them and may fail.
If output->configured is true, then the output has been modeset correctly and
we don't need to try again. If output->enabled is true, then we are in the
process of configuring the output and we shouldn't do anything.
Designing the output configuration sequence without invalid state is tricky.
We have one function, apply_output_config, that takes an output and (besides
other things) performs a modeset and inserts the output in the output layout.
The modeset can fail, in which case we don't want the output to be enabled.
We also have an output_enable function, which calls output_apply_config and
also configures the output's workspace and inserts it in the root container.
Now, we have two choices.
Either we configure the output before it's been inserted in the root container
and then, if the modeset was successful, we insert it and create the workspace.
The main issue with this approach is that configuring the output triggers a
handful of signals, namely wlr_output.mode and wlr_output_layout.change. In
those event handlers, we need to make sure to ignore these outputs in the
process of being configured.
Either we first insert the output, create the workspace and then try to
configure it. It means we need to undo everything if the modeset fails. The
main issue with this solution is that it enables and disables the output very
quickly, creates a workspace and immediately destroys it, and maybe moves
views back and forth (see output_evacuate).
I've tried to make it so an output isn't enabled then immediately disabled. We
already have code for ignoring outputs when the output is being destructed.
Fixes https://github.com/swaywm/sway/issues/3462
This happens if you plug in more outputs than supported by your GPU.
This patch makes it so outputs without CRTCs appear as disabled. As soon as
they get a CRTC (signalled via the mode event), we can enable them.
This modifies `bar_cmd_tray_bindsym` to use `get_mouse_bindsym` for
parsing mouse buttons. This also introduces `bar_cmd_tray_bindcode`,
which will use `get_mouse_bindcode` for parsing mouse buttons. Like with
sway bindings, the two commands are encapsulated in a single file to
maximize shared code.
This also modifies tray bindings to work off of events codes rather than
x11 buttons, which allows for any mouse buttons to be used.
For `get_bar_config`, `event_code` has been added to the `tray_bindings`
section and will include to event code for the button. If the event code
can be mapped to a x11 button, `input_code` will still be the x11 button
number. Otherwise, `input_code` will be `0`.
In `sway_terminate`, `ipc_event_shutdown` was being sent regardless
which mode sway was running in. When running as an ipc client,
`sway_terminate` should just exit
Clear the focus when we hide the cursor and show it again during the unhide
action. The unhide function will rebase the cursor after the unhide.
Tested by looking at the WAYLAND_DEBUG=1 output of termite.
Also call cursor_handle_activity before sending pointer events to send the enter
events to the surface if the cursor was hidden before.
Fixes#3431
This fixes the handling of hidden scratchpad containers for some
commands. For the most part, this just prevents running the commands on
hidden scratchpad containers, but there are some commands that have some
special handling for them.
For example, create layout V[view view view] and resize the leftmost
view using mod+rightclick. Previously, the edge between view 2 and 3
would be adjusted as well. Now this edge will remain constant, which
matches the behaviour of i3.
To do this operation correctly, the resize tiling seatop now keeps track
of two containers, as the container that resizes horizontally will be a
different container to the one which resizes vertically (one will be an
ancestor). The tiling resize seatop now figures out these containers
during the start of the operation and keeps references to them in the
event. A new function container_find_resize_parent has been introduced
to do this. This function is also used by the resize command.
During cursor motion, the seatop logic is similar to before, but now has
to choose the correct container to resize.
In resize.c, container_resize_tiled and resize_tiled have been merged
into one. One of them originally did nothing except pass the values
through to the other.
container_resize_tiled now takes a simplified approach where it just
finds the immediate siblings on either side and resizes them without
worrying about the others. The parellel_coord and parallel_size
functions are no longer needed and have been removed.
When resetting the keyboard during reload, disarm the key repeat on all
keyboards since the bindings (and possibly keyboard) will be freed before
the key repeat can go off.
Patch tested by compiling with `__attribute__ ((format (printf, 2, 3)))`
applied to `cmd_results_new`.
String usage constants have been converted from pointers to arrays when
encountered. General handler format strings were sometimes modified to
include the old input string, especially for unknown command errors.
This field is not in i3 and provides imprecise and redundant information.
(Specifically, when swaymsg is given a list of commands, the IPC return
array already indicates precisely which number command failed; knowing
the name of the command is not useful when multiple commands of the
same type are provided.)
This patch removes the resize_axis enum in favour of wlr_edges. As
wlr_edges has no `horizontal` or `vertical` value, it denotes these by
bitwise `or`ing the left/right and up/down values. Two constants are
defined to make it easier to refer to these.
This will allow the tiling resize seatop to utilise the functions in
this file. resize_axis was local to the resize command and couldn't be
exposed in function arguments.
When the config has continued lines, `get_line_with_cont` may read more
than one line of the actual file. When displaying line numbers for error
messages, they should be the line number in the file to make it easy to
find and fix the issue.
Adds the bar subcommand `status_padding <padding>` which allows setting
the padding used for swaybar. If `status_padding` is set to `0`, blocks
will be able to take up the full height of the bar.
This modifies `input_cmd_scroll_button` to utilize the mouse button
helper `get_mouse_button` when parsing the button. x11 axis buttons are
not supported with this command and `CMD_INVALID` will be returned, but
all other x11 buttons, button event names, and button event codes should
be working
This modifies `bar_cmd_bindsym` to use `get_mouse_bindsym` for parsing
mouse buttons. This also introduces `cmd_bar_bindcode`, which will use
`get_mouse_bindcode` for parsing mouse buttons. Like sway bindings, the
two commands are encapsulated in a single file with shared code.
This also modifies swaybar to operate off of event codes rather than x11
button numbers, which allows for any mouse button to be used.
This introduces two new IPC properties:
- For `get_bar_config`, `event_code` has been added to the `bindings`
section and will include to event code for the button. If the event code
can be mapped to a x11 button, `input_code` will still be the x11 button
number. Otherwise, `input_code` will be `0`.
- Likewise for `click_events`, `event` has been added and will include
the event code for the button clicked. If the event code can be mapped
to a x11 button, `button` will still be the x11 button number.
Otherwise, `button` will be `0`.
This modifies `seat_cmd_cursor` to utilize `get_mouse_button` when
parsing mouse buttons for the `press` and `release` operations. All x11
buttons, button event names, and button event codes are supported.
For x11 axis buttons, `dispatch_cursor_axis` is used instead of
`dispatch_cursor_button`. However the `press`/`release` state is ignored
and the either axis event is processed. This also removes support for
`left` and `right` in favor of `BTN_LEFT` and `BTN_RIGHT`.
This splits each seat operation (drag/move tiling/floating etc) into a
separate file and introduces a struct sway_seatop_impl to abstract the
operation.
The move_tiling_threshold operation has been merged into move_tiling.
The main logic for each operation is untouched aside from variable
renames.
The following previously-static functions have been made public:
* node_at_coords
* container_raise_floating
* render_rect
* premultiply_alpha
* scale_box
This fixes two causes of segfaulting when an output is destroyed.
The first occurred when an output was never enabled. The issue was that
the destroy signal was never initialized so when it was emitted, sway
segfaulted. This was fixed by moving the initialization into
`output_create` since all outputs, regardless of whether they have ever
been enabled, will be destroyed at some point.
The second occurred when the cursor was on an output that was being
destroyed. The sway output would have already been removed, but if there
are other outputs, a cursor rebase would still occur. Since the
wlr_output still existed and the sway output was destroyed, the cursor
could be over nothing, resulting in a segfault when trying to get the
sway output, which was destroyed.
Implements toggling input events during runtime. This will not attempt
to toggle to a mode that is not supported by the device.
When toggling the wildcard input, the device specific input configs are
altered. Each device will cycle one supported mode.
This allows tabbed and stacked containers to be scrolled through when
the cursor is over the border of the title bar. The borders around the
other three edges of the contents should not be affected by this change.
This modifies `bindcode` and `bindsym` to use `get_mouse_bindcode` and
`get_mouse_bindsym`, respectively, to parse mouse buttons. Additionally,
the `BINDING_MOUSE` type has been split into `BINDING_MOUSECODE` and
`BINDING_MOUSESYM` to match keys and allow for mouse bindcodes to be
used. Between the two commands, all button syms and codes should be
supported, including x11 axis buttons.
The following helper functions have been added to aid with parsing mouse
buttons from a string:
1. `get_mouse_bindsym`: attempts to parse the string as an x11 button
(button[1-9]) or as an event name (ex BTN_LEFT or BTN_SIDE)
2. `get_mouse_bindcode`: attempts to parse the string as an event code
and validates that the event code is a button (starts with `BTN_`).
3. `get_mouse_button`: this is a conveniency function for callers that
do not care whether a bindsym or bindcode are used and attempts to parse
the string as a bindsym and then bindcode.
None of these functions are used in this commit. The sole purpose of
this commit is to make the larger set more granular and easier to
review/manipulate. There will be a series of commits following this one
that will modify any command which uses a mouse button to use these
helpers.
evdev-proto is installed by a dependency, so some files have been missed:
In file included from ../sway/input/cursor.c:3:
/usr/local/include/libevdev-1.0/libevdev/libevdev.h:30:10: fatal error: 'linux/input.h' file not found
#include <linux/input.h>
^~~~~~~~~~~~~~~
../swaybar/i3bar.c:3:10: fatal error: 'linux/input-event-codes.h' file not found
#include <linux/input-event-codes.h>
^~~~~~~~~~~~~~~~~~~~~~~~~~~
`seat_execute_command` was incorrectly setting
`config->handler_context.seat` before calling `execute_command`. Since
`execute_command` was being called with a `NULL` seat argument,
`execute_command` was setting `config->handler_context.seat` to the
default seat. This resulted in all bindings being executed on the
default seat and causing undesired behavior for devices on other seats.
Since the keyboard can be destroyed by executing a binding (reloading
with a different seat attachment config), update the repeat timer before
executing the binding.
Wait until all seat configs have been read before applying them on
reload. This prevents unnecessary attachment/detachment of input
devices and therefore creation/destruction of seat devices as
individual lines are read.
Unhide the cursor if container warping is enabled.
Also set the image_surface to NULL during view_unmap, otherwise the cursor will
try to access the surface which is currently being unmapped.
../sway/desktop/transaction.c:367:17: error: format specifies type 'long' but the argument has type 'size_t' (aka 'unsigned int') [-Werror,-Wformat]
transaction, transaction->num_waiting);
^~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/include/wlr/util/log.h:56:72: note: expanded from macro 'wlr_log'
_wlr_log(verb, "[%s:%d] " fmt, _wlr_strip_path(__FILE__), __LINE__, ##__VA_ARGS__)
^~~~~~~~~~~
../sway/desktop/transaction.c:477:5: error: format specifies type 'long' but the argument has type 'unsigned int' [-Werror,-Wformat]
transaction->num_configures - transaction->num_waiting + 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/include/wlr/util/log.h:56:72: note: expanded from macro 'wlr_log'
_wlr_log(verb, "[%s:%d] " fmt, _wlr_strip_path(__FILE__), __LINE__, ##__VA_ARGS__)
^~~~~~~~~~~
../sway/desktop/transaction.c:478:5: error: format specifies type 'long' but the argument has type 'size_t' (aka 'unsigned int') [-Werror,-Wformat]
transaction->num_configures, ms,
^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/include/wlr/util/log.h:56:72: note: expanded from macro 'wlr_log'
_wlr_log(verb, "[%s:%d] " fmt, _wlr_strip_path(__FILE__), __LINE__, ##__VA_ARGS__)
^~~~~~~~~~~
Implements `tiling_drag_threshold <threshold>` to prevent accidental
dragging of tiling containers. If a container (and all of its
descendants) are unfocused and the tile bar is pressed, a threshold
will be used before actually starting the drag. Once the threshold has
been exceeded, the cursor will change to the grab icon and the operation
will switch from `OP_MOVE_TILING_THRESHOLD` to `OP_MOVE_TILING`.
See issue #3359 for reproduction details. When a fullscreen view is
unmapped and there's a preceding transaction waiting, there may be
neither a saved buffer or a surface to render. This change matches
the equivalent code in render_view.
The implicit fallback seat config needs to be applied (if created).
Otherwise, the input devices will still be removed from the implicit
default seat on reload when there is any seat config.
These are not yet implemented, and will be exposed as a configuration command
rather than env variables when implemented.
This also adds a reference to sway-input(5) in xkb env configuration. Maybe we
should just un-document these instead.
This fixes an issue where on reload, all input devices that were added
via an implicit fallback to the default seat would be removed from the
default seat and applications would crash due to the seat having no
capabilities.
On reload, there is a query for a seat config with the fallback setting
set (it can either be true or false). If no such seat config exists, the
default seat is created (if needed) and has the implicit fallback true
applied to its seat config. This is the same procedure that occurs when
a new input is detected.
Instead of simulating events on the current seat, this makes it so
seat_cmd_cursor respects the seat name provided by `seat <name> cursor
<args>`. It also adds support for simulating events on all seats when
the wildcard is given.
This also defers the command when reading the config, which allows the
user to set the initial position of the cursor when the command is
included in the config file.
This makes seat configs work like output and input configs do. This also
adds support for wildcard seat configs. A seat config is still created
in the main seat command handler, but instead of creating a new one in
the subcommands and destroying the main seat command's instance, the
seat subcommands modify the main one. The seat config is then stored,
where it is merged appropriately. The seat config returned from
`store_seat_config` is then applied. When attempting to apply a wildcard
seat config, a seat specific config is queried for and if found, that is
used. Otherwise, the wildcard config is applied directly.
Additionally, instead of adding input devices to the default seat
directly when there is no seat configs, a seat config for the default
seat is created with only fallback set to true, which is more explicit.
It also fixes an issue where running a seat command at runtime (with no
seat config in the sway config), would result in all input devices being
removed from the default seat and leaving sway in an unusable state.
Also, instead of checking for any seat config, the search is for a seat
config with a fallback option seat. This makes it so if there are only
seat configs with fallback set to -1, the default seat is still created
since there is no explicit notion on what to do regarding fallbacks.
However, if there is even a single fallback 0, then the default seat is
not used as a fallback. This will be needed for seat subcommands like
hide_cursor where the user may only want to set that property without
effecting anything else.
This fixes a bug in `dispatch_cursor_button` where if there was an
operation occurring, the button would not be removed from the state on
release. This resulted in the button appearing to be permanently pressed
and caused mouse bindings to not match correctly.
To reproduce:
* Launch two terminals in a workspace
* `focus parent` to select both terminals
* `move scratchpad`
* `scratchpad show` to show the terminals
* `scratchpad show` to hide the terminals
* `scratchpad show` - crash
When hiding the terminals, it should be moving focus to whatever is in
the workspace, but this wasn't happening because the focus check didn't
consider split containers. So the terminals were hidden in the
scratchpad while still having focus. This confused the next invocation
of scratchpad show, causing it to attempt to hide them instead of show
them, and the hide-related code caused a crash when it tried to arrange
the workspace which was NULL.
This patch corrects the focus check.