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-rw-r--r--client.h10
-rw-r--r--dwl.c274
2 files changed, 85 insertions, 199 deletions
diff --git a/client.h b/client.h
index 41c9b9a..db043d2 100644
--- a/client.h
+++ b/client.h
@@ -39,7 +39,7 @@ client_activate_surface(struct wlr_surface *s, int activated)
#endif
if (wlr_surface_is_xdg_surface(s))
wlr_xdg_toplevel_set_activated(
- wlr_xdg_surface_from_wlr_surface(s), activated);
+ wlr_xdg_surface_from_wlr_surface(s)->toplevel, activated);
}
static inline void
@@ -152,7 +152,7 @@ client_send_close(Client *c)
return;
}
#endif
- wlr_xdg_toplevel_send_close(c->surface.xdg);
+ wlr_xdg_toplevel_send_close(c->surface.xdg->toplevel);
}
static inline void
@@ -164,7 +164,7 @@ client_set_fullscreen(Client *c, int fullscreen)
return;
}
#endif
- wlr_xdg_toplevel_set_fullscreen(c->surface.xdg, fullscreen);
+ wlr_xdg_toplevel_set_fullscreen(c->surface.xdg->toplevel, fullscreen);
}
static inline uint32_t
@@ -177,7 +177,7 @@ client_set_size(Client *c, uint32_t width, uint32_t height)
return 0;
}
#endif
- return wlr_xdg_toplevel_set_size(c->surface.xdg, width, height);
+ return wlr_xdg_toplevel_set_size(c->surface.xdg->toplevel, width, height);
}
static inline void
@@ -187,7 +187,7 @@ client_set_tiled(Client *c, uint32_t edges)
if (client_is_x11(c))
return;
#endif
- wlr_xdg_toplevel_set_tiled(c->surface.xdg, edges);
+ wlr_xdg_toplevel_set_tiled(c->surface.xdg->toplevel, edges);
}
static inline struct wlr_surface *
diff --git a/dwl.c b/dwl.c
index b09fc6f..dd62956 100644
--- a/dwl.c
+++ b/dwl.c
@@ -39,6 +39,7 @@
#include <wlr/types/wlr_screencopy_v1.h>
#include <wlr/types/wlr_seat.h>
#include <wlr/types/wlr_server_decoration.h>
+#include <wlr/types/wlr_subcompositor.h>
#include <wlr/types/wlr_viewporter.h>
#include <wlr/types/wlr_virtual_keyboard_v1.h>
#include <wlr/types/wlr_xcursor_manager.h>
@@ -121,14 +122,6 @@ typedef struct {
} Client;
typedef struct {
- uint32_t singular_anchor;
- uint32_t anchor_triplet;
- int *positive_axis;
- int *negative_axis;
- int margin;
-} Edge;
-
-typedef struct {
uint32_t mod;
xkb_keysym_t keysym;
void (*func)(const Arg *);
@@ -137,7 +130,7 @@ typedef struct {
typedef struct {
struct wl_list link;
- struct wlr_input_device *device;
+ struct wlr_keyboard *wlr_keyboard;
struct wl_listener modifiers;
struct wl_listener key;
@@ -149,6 +142,7 @@ typedef struct {
unsigned int type; /* LayerShell */
int mapped;
struct wlr_scene_node *scene;
+ struct wlr_scene_layer_surface_v1 *scene_layer;
struct wl_list link;
struct wlr_layer_surface_v1 *layer_surface;
@@ -156,8 +150,6 @@ typedef struct {
struct wl_listener map;
struct wl_listener unmap;
struct wl_listener surface_commit;
-
- struct wlr_box geo;
} LayerSurface;
typedef struct {
@@ -202,9 +194,6 @@ typedef struct {
/* function declarations */
static void applybounds(Client *c, struct wlr_box *bbox);
-static void applyexclusive(struct wlr_box *usable_area, uint32_t anchor,
- int32_t exclusive, int32_t margin_top, int32_t margin_right,
- int32_t margin_bottom, int32_t margin_left);
static void applyrules(Client *c);
static void arrange(Monitor *m);
static void arrangelayer(Monitor *m, struct wl_list *list,
@@ -220,11 +209,11 @@ static void closemon(Monitor *m);
static void commitlayersurfacenotify(struct wl_listener *listener, void *data);
static void commitnotify(struct wl_listener *listener, void *data);
static void createidleinhibitor(struct wl_listener *listener, void *data);
-static void createkeyboard(struct wlr_input_device *device);
+static void createkeyboard(struct wlr_keyboard *keyboard);
static void createlayersurface(struct wl_listener *listener, void *data);
static void createmon(struct wl_listener *listener, void *data);
static void createnotify(struct wl_listener *listener, void *data);
-static void createpointer(struct wlr_input_device *device);
+static void createpointer(struct wlr_pointer *pointer);
static void cursorframe(struct wl_listener *listener, void *data);
static void destroyidleinhibitor(struct wl_listener *listener, void *data);
static void destroylayersurfacenotify(struct wl_listener *listener, void *data);
@@ -271,7 +260,6 @@ static void setmon(Client *c, Monitor *m, unsigned int newtags);
static void setpsel(struct wl_listener *listener, void *data);
static void setsel(struct wl_listener *listener, void *data);
static void setup(void);
-static void sigchld(int unused);
static void spawn(const Arg *arg);
static void startdrag(struct wl_listener *listener, void *data);
static void tag(const Arg *arg);
@@ -358,6 +346,7 @@ static void activatex11(struct wl_listener *listener, void *data);
static void configurex11(struct wl_listener *listener, void *data);
static void createnotifyx11(struct wl_listener *listener, void *data);
static Atom getatom(xcb_connection_t *xc, const char *name);
+static void sigchld(int unused);
static void xwaylandready(struct wl_listener *listener, void *data);
static struct wl_listener new_xwayland_surface = {.notify = createnotifyx11};
static struct wl_listener xwayland_ready = {.notify = xwaylandready};
@@ -393,61 +382,6 @@ applybounds(Client *c, struct wlr_box *bbox)
}
void
-applyexclusive(struct wlr_box *usable_area,
- uint32_t anchor, int32_t exclusive,
- int32_t margin_top, int32_t margin_right,
- int32_t margin_bottom, int32_t margin_left) {
- Edge edges[] = {
- { /* Top */
- .singular_anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP,
- .anchor_triplet = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
- ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
- ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP,
- .positive_axis = &usable_area->y,
- .negative_axis = &usable_area->height,
- .margin = margin_top,
- },
- { /* Bottom */
- .singular_anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
- .anchor_triplet = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
- ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
- ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
- .positive_axis = NULL,
- .negative_axis = &usable_area->height,
- .margin = margin_bottom,
- },
- { /* Left */
- .singular_anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT,
- .anchor_triplet = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
- ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
- ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
- .positive_axis = &usable_area->x,
- .negative_axis = &usable_area->width,
- .margin = margin_left,
- },
- { /* Right */
- .singular_anchor = ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT,
- .anchor_triplet = ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
- ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
- ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
- .positive_axis = NULL,
- .negative_axis = &usable_area->width,
- .margin = margin_right,
- }
- };
- for (size_t i = 0; i < LENGTH(edges); i++) {
- if ((anchor == edges[i].singular_anchor || anchor == edges[i].anchor_triplet)
- && exclusive + edges[i].margin > 0) {
- if (edges[i].positive_axis)
- *edges[i].positive_axis += exclusive + edges[i].margin;
- if (edges[i].negative_axis)
- *edges[i].negative_axis -= exclusive + edges[i].margin;
- break;
- }
- }
-}
-
-void
applyrules(Client *c)
{
/* rule matching */
@@ -498,72 +432,11 @@ arrangelayer(Monitor *m, struct wl_list *list, struct wlr_box *usable_area, int
wl_list_for_each(layersurface, list, link) {
struct wlr_layer_surface_v1 *wlr_layer_surface = layersurface->layer_surface;
struct wlr_layer_surface_v1_state *state = &wlr_layer_surface->current;
- struct wlr_box bounds;
- struct wlr_box box = {
- .width = state->desired_width,
- .height = state->desired_height
- };
- const uint32_t both_horiz = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT
- | ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;
- const uint32_t both_vert = ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP
- | ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM;
if (exclusive != (state->exclusive_zone > 0))
continue;
- bounds = state->exclusive_zone == -1 ? full_area : *usable_area;
-
- /* Horizontal axis */
- if ((state->anchor & both_horiz) && box.width == 0) {
- box.x = bounds.x;
- box.width = bounds.width;
- } else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT)) {
- box.x = bounds.x;
- } else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT)) {
- box.x = bounds.x + (bounds.width - box.width);
- } else {
- box.x = bounds.x + ((bounds.width / 2) - (box.width / 2));
- }
- /* Vertical axis */
- if ((state->anchor & both_vert) && box.height == 0) {
- box.y = bounds.y;
- box.height = bounds.height;
- } else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP)) {
- box.y = bounds.y;
- } else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM)) {
- box.y = bounds.y + (bounds.height - box.height);
- } else {
- box.y = bounds.y + ((bounds.height / 2) - (box.height / 2));
- }
- /* Margin */
- if ((state->anchor & both_horiz) == both_horiz) {
- box.x += state->margin.left;
- box.width -= state->margin.left + state->margin.right;
- } else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT)) {
- box.x += state->margin.left;
- } else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT)) {
- box.x -= state->margin.right;
- }
- if ((state->anchor & both_vert) == both_vert) {
- box.y += state->margin.top;
- box.height -= state->margin.top + state->margin.bottom;
- } else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP)) {
- box.y += state->margin.top;
- } else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM)) {
- box.y -= state->margin.bottom;
- }
- if (box.width < 0 || box.height < 0) {
- wlr_layer_surface_v1_destroy(wlr_layer_surface);
- continue;
- }
- layersurface->geo = box;
-
- if (state->exclusive_zone > 0)
- applyexclusive(usable_area, state->anchor, state->exclusive_zone,
- state->margin.top, state->margin.right,
- state->margin.bottom, state->margin.left);
- wlr_scene_node_set_position(layersurface->scene, box.x, box.y);
- wlr_layer_surface_v1_configure(wlr_layer_surface, box.width, box.height);
+ wlr_scene_layer_surface_v1_configure(layersurface->scene_layer, &full_area, usable_area);
}
}
@@ -613,7 +486,7 @@ axisnotify(struct wl_listener *listener, void *data)
{
/* This event is forwarded by the cursor when a pointer emits an axis event,
* for example when you move the scroll wheel. */
- struct wlr_event_pointer_axis *event = data;
+ struct wlr_pointer_axis_event *event = data;
wlr_idle_notify_activity(idle, seat);
/* Notify the client with pointer focus of the axis event. */
wlr_seat_pointer_notify_axis(seat,
@@ -624,7 +497,7 @@ axisnotify(struct wl_listener *listener, void *data)
void
buttonpress(struct wl_listener *listener, void *data)
{
- struct wlr_event_pointer_button *event = data;
+ struct wlr_pointer_button_event *event = data;
struct wlr_keyboard *keyboard;
uint32_t mods;
Client *c;
@@ -695,7 +568,7 @@ void
cleanupkeyboard(struct wl_listener *listener, void *data)
{
struct wlr_input_device *device = data;
- Keyboard *kb = device->data;
+ Keyboard *kb = device->keyboard->data;
wl_list_remove(&kb->link);
wl_list_remove(&kb->modifiers.link);
@@ -790,29 +663,29 @@ createidleinhibitor(struct wl_listener *listener, void *data)
}
void
-createkeyboard(struct wlr_input_device *device)
+createkeyboard(struct wlr_keyboard *keyboard)
{
struct xkb_context *context;
struct xkb_keymap *keymap;
- Keyboard *kb = device->data = ecalloc(1, sizeof(*kb));
- kb->device = device;
+ Keyboard *kb = keyboard->data = ecalloc(1, sizeof(*kb));
+ kb->wlr_keyboard = keyboard;
/* Prepare an XKB keymap and assign it to the keyboard. */
context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
keymap = xkb_keymap_new_from_names(context, &xkb_rules,
XKB_KEYMAP_COMPILE_NO_FLAGS);
- wlr_keyboard_set_keymap(device->keyboard, keymap);
+ wlr_keyboard_set_keymap(keyboard, keymap);
xkb_keymap_unref(keymap);
xkb_context_unref(context);
- wlr_keyboard_set_repeat_info(device->keyboard, repeat_rate, repeat_delay);
+ wlr_keyboard_set_repeat_info(keyboard, repeat_rate, repeat_delay);
/* Here we set up listeners for keyboard events. */
- LISTEN(&device->keyboard->events.modifiers, &kb->modifiers, keypressmod);
- LISTEN(&device->keyboard->events.key, &kb->key, keypress);
- LISTEN(&device->events.destroy, &kb->destroy, cleanupkeyboard);
+ LISTEN(&keyboard->events.modifiers, &kb->modifiers, keypressmod);
+ LISTEN(&keyboard->events.key, &kb->key, keypress);
+ LISTEN(&keyboard->base.events.destroy, &kb->destroy, cleanupkeyboard);
- wlr_seat_set_keyboard(seat, device);
+ wlr_seat_set_keyboard(seat, keyboard);
/* And add the keyboard to our list of keyboards */
wl_list_insert(&keyboards, &kb->link);
@@ -845,9 +718,11 @@ createlayersurface(struct wl_listener *listener, void *data)
wlr_layer_surface->data = layersurface;
m = wlr_layer_surface->output->data;
+ layersurface->scene_layer = wlr_scene_layer_surface_v1_create(
+ layers[wlr_layer_surface->pending.layer], wlr_layer_surface);
layersurface->scene = wlr_layer_surface->surface->data =
- wlr_scene_subsurface_tree_create(layers[wlr_layer_surface->pending.layer],
- wlr_layer_surface->surface);
+ layersurface->scene_layer->node;
+
layersurface->scene->data = layersurface;
wl_list_insert(&m->layers[wlr_layer_surface->pending.layer],
@@ -969,11 +844,11 @@ createnotify(struct wl_listener *listener, void *data)
}
void
-createpointer(struct wlr_input_device *device)
+createpointer(struct wlr_pointer *pointer)
{
- if (wlr_input_device_is_libinput(device)) {
+ if (wlr_input_device_is_libinput(&pointer->base)) {
struct libinput_device *libinput_device = (struct libinput_device*)
- wlr_libinput_get_device_handle(device);
+ wlr_libinput_get_device_handle(&pointer->base);
if (tap_to_click && libinput_device_config_tap_get_finger_count(libinput_device))
libinput_device_config_tap_set_enabled(libinput_device, LIBINPUT_CONFIG_TAP_ENABLED);
@@ -986,7 +861,7 @@ createpointer(struct wlr_input_device *device)
* is proxied through wlr_cursor. On another compositor, you might take this
* opportunity to do libinput configuration on the device to set
* acceleration, etc. */
- wlr_cursor_attach_input_device(cursor, device);
+ wlr_cursor_attach_input_device(cursor, &pointer->base);
}
void
@@ -1219,10 +1094,10 @@ inputdevice(struct wl_listener *listener, void *data)
switch (device->type) {
case WLR_INPUT_DEVICE_KEYBOARD:
- createkeyboard(device);
+ createkeyboard(device->keyboard);
break;
case WLR_INPUT_DEVICE_POINTER:
- createpointer(device);
+ createpointer(device->pointer);
break;
default:
/* TODO handle other input device types */
@@ -1265,17 +1140,17 @@ keypress(struct wl_listener *listener, void *data)
int i;
/* This event is raised when a key is pressed or released. */
Keyboard *kb = wl_container_of(listener, kb, key);
- struct wlr_event_keyboard_key *event = data;
+ struct wlr_keyboard_key_event *event = data;
/* Translate libinput keycode -> xkbcommon */
uint32_t keycode = event->keycode + 8;
/* Get a list of keysyms based on the keymap for this keyboard */
const xkb_keysym_t *syms;
int nsyms = xkb_state_key_get_syms(
- kb->device->keyboard->xkb_state, keycode, &syms);
+ kb->wlr_keyboard->xkb_state, keycode, &syms);
int handled = 0;
- uint32_t mods = wlr_keyboard_get_modifiers(kb->device->keyboard);
+ uint32_t mods = wlr_keyboard_get_modifiers(kb->wlr_keyboard);
wlr_idle_notify_activity(idle, seat);
@@ -1288,7 +1163,7 @@ keypress(struct wl_listener *listener, void *data)
if (!handled) {
/* Pass unhandled keycodes along to the client. */
- wlr_seat_set_keyboard(seat, kb->device);
+ wlr_seat_set_keyboard(seat, kb->wlr_keyboard);
wlr_seat_keyboard_notify_key(seat, event->time_msec,
event->keycode, event->state);
}
@@ -1306,10 +1181,10 @@ keypressmod(struct wl_listener *listener, void *data)
* same seat. You can swap out the underlying wlr_keyboard like this and
* wlr_seat handles this transparently.
*/
- wlr_seat_set_keyboard(seat, kb->device);
+ wlr_seat_set_keyboard(seat, kb->wlr_keyboard);
/* Send modifiers to the client. */
wlr_seat_keyboard_notify_modifiers(seat,
- &kb->device->keyboard->modifiers);
+ &kb->wlr_keyboard->modifiers);
}
void
@@ -1400,8 +1275,8 @@ motionabsolute(struct wl_listener *listener, void *data)
* move the mouse over the window. You could enter the window from any edge,
* so we have to warp the mouse there. There is also some hardware which
* emits these events. */
- struct wlr_event_pointer_motion_absolute *event = data;
- wlr_cursor_warp_absolute(cursor, event->device, event->x, event->y);
+ struct wlr_pointer_motion_absolute_event *event = data;
+ wlr_cursor_warp_absolute(cursor, &event->pointer->base, event->x, event->y);
motionnotify(event->time_msec);
}
@@ -1455,13 +1330,13 @@ motionrelative(struct wl_listener *listener, void *data)
{
/* This event is forwarded by the cursor when a pointer emits a _relative_
* pointer motion event (i.e. a delta) */
- struct wlr_event_pointer_motion *event = data;
+ struct wlr_pointer_motion_event *event = data;
/* The cursor doesn't move unless we tell it to. The cursor automatically
* handles constraining the motion to the output layout, as well as any
* special configuration applied for the specific input device which
* generated the event. You can pass NULL for the device if you want to move
* the cursor around without any input. */
- wlr_cursor_move(cursor, event->device, event->delta_x, event->delta_y);
+ wlr_cursor_move(cursor, &event->pointer->base, event->delta_x, event->delta_y);
motionnotify(event->time_msec);
}
@@ -1666,18 +1541,6 @@ rendermon(struct wl_listener *listener, void *data)
}
void
-requeststartdrag(struct wl_listener *listener, void *data)
-{
- struct wlr_seat_request_start_drag_event *event = data;
-
- if (wlr_seat_validate_pointer_grab_serial(seat, event->origin,
- event->serial))
- wlr_seat_start_pointer_drag(seat, event->drag, event->serial);
- else
- wlr_data_source_destroy(event->drag->source);
-}
-
-void
resize(Client *c, int x, int y, int w, int h, int interact)
{
int min_width = 0, min_height = 0;
@@ -1706,6 +1569,18 @@ resize(Client *c, int x, int y, int w, int h, int interact)
}
void
+requeststartdrag(struct wl_listener *listener, void *data)
+{
+ struct wlr_seat_request_start_drag_event *event = data;
+
+ if (wlr_seat_validate_pointer_grab_serial(seat, event->origin,
+ event->serial))
+ wlr_seat_start_pointer_drag(seat, event->drag, event->serial);
+ else
+ wlr_data_source_destroy(event->drag->source);
+}
+
+void
run(char *startup_cmd)
{
pid_t startup_pid = -1;
@@ -1903,7 +1778,11 @@ setup(void)
dpy = wl_display_create();
/* Set up signal handlers */
+#ifdef XWAYLAND
sigchld(0);
+#else
+ signal(SIGCHLD, SIG_IGN);
+#endif
signal(SIGINT, quitsignal);
signal(SIGTERM, quitsignal);
@@ -1951,6 +1830,7 @@ setup(void)
wlr_gamma_control_manager_v1_create(dpy);
wlr_primary_selection_v1_device_manager_create(dpy);
wlr_viewporter_create(dpy);
+ wlr_subcompositor_create(dpy);
/* Initializes the interface used to implement urgency hints */
activation = wlr_xdg_activation_v1_create(dpy);
@@ -2068,20 +1948,6 @@ setup(void)
}
void
-sigchld(int unused)
-{
- /* We should be able to remove this function in favor of a simple
- * signal(SIGCHLD, SIG_IGN);
- * but the Xwayland implementation in wlroots currently prevents us from
- * setting our own disposition for SIGCHLD.
- */
- if (signal(SIGCHLD, sigchld) == SIG_ERR)
- die("can't install SIGCHLD handler:");
- while (0 < waitpid(-1, NULL, WNOHANG))
- ;
-}
-
-void
spawn(const Arg *arg)
{
if (fork() == 0) {
@@ -2260,7 +2126,7 @@ updatemons(struct wl_listener *listener, void *data)
struct wlr_output_configuration_v1 *config =
wlr_output_configuration_v1_create();
Monitor *m;
- sgeom = *wlr_output_layout_get_box(output_layout, NULL);
+ wlr_output_layout_get_box(output_layout, NULL, &sgeom);
wl_list_for_each(m, &mons, link) {
struct wlr_output_configuration_head_v1 *config_head =
wlr_output_configuration_head_v1_create(config, m->wlr_output);
@@ -2269,7 +2135,8 @@ updatemons(struct wl_listener *listener, void *data)
/* TODO: move focus if selmon is disabled */
/* Get the effective monitor geometry to use for surfaces */
- m->m = m->w = *wlr_output_layout_get_box(output_layout, m->wlr_output);
+ wlr_output_layout_get_box(output_layout, m->wlr_output, &(m->m));
+ wlr_output_layout_get_box(output_layout, m->wlr_output, &(m->w));
wlr_scene_output_set_position(m->scene_output, m->m.x, m->m.y);
/* Calculate the effective monitor geometry to use for clients */
arrangelayers(m);
@@ -2325,8 +2192,8 @@ void
virtualkeyboard(struct wl_listener *listener, void *data)
{
struct wlr_virtual_keyboard_v1 *keyboard = data;
- struct wlr_input_device *device = &keyboard->input_device;
- createkeyboard(device);
+ struct wlr_input_device *device = &keyboard->keyboard.base;
+ createkeyboard(device->keyboard);
}
Monitor *
@@ -2463,6 +2330,25 @@ getatom(xcb_connection_t *xc, const char *name)
}
void
+sigchld(int unused)
+{
+ siginfo_t in;
+ /* We should be able to remove this function in favor of a simple
+ * signal(SIGCHLD, SIG_IGN);
+ * but the Xwayland implementation in wlroots currently prevents us from
+ * setting our own disposition for SIGCHLD.
+ */
+ if (signal(SIGCHLD, sigchld) == SIG_ERR)
+ EBARF("can't install SIGCHLD handler");
+ /* WNOWAIT leaves the child in a waitable state, in case this is the
+ * XWayland process
+ */
+ while (!waitid(P_ALL, 0, &in, WEXITED|WNOHANG|WNOWAIT) && in.si_pid
+ && in.si_pid != xwayland->server->pid)
+ waitpid(in.si_pid, NULL, 0);
+}
+
+void
xwaylandready(struct wl_listener *listener, void *data)
{
struct wlr_xcursor *xcursor;