wlroots/types/wlr_seat.c

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C
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#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <wayland-server.h>
#include <wlr/types/wlr_seat.h>
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#include <wlr/types/wlr_input_device.h>
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#include <wlr/util/log.h>
static void resource_destroy(struct wl_client *client,
struct wl_resource *resource) {
wl_resource_destroy(resource);
}
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static void pointer_send_frame(struct wl_resource *resource) {
if (wl_resource_get_version(resource) >=
WL_POINTER_FRAME_SINCE_VERSION) {
wl_pointer_send_frame(resource);
}
}
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static void wl_pointer_set_cursor(struct wl_client *client,
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struct wl_resource *resource, uint32_t serial,
struct wl_resource *surface_resource,
int32_t hotspot_x, int32_t hotspot_y) {
struct wlr_seat_handle *handle = wl_resource_get_user_data(resource);
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struct wlr_surface *surface = NULL;
if (surface_resource != NULL) {
surface = wl_resource_get_user_data(surface_resource);
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if (wlr_surface_set_role(surface, "wl_pointer-cursor", resource,
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WL_POINTER_ERROR_ROLE) < 0) {
return;
}
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}
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struct wlr_seat_pointer_request_set_cursor_event *event =
calloc(1, sizeof(struct wlr_seat_pointer_request_set_cursor_event));
if (event == NULL) {
return;
}
event->client = client;
event->seat_handle = handle;
event->surface = surface;
event->hotspot_x = hotspot_x;
event->hotspot_y = hotspot_y;
wl_signal_emit(&handle->wlr_seat->events.request_set_cursor, event);
free(event);
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}
static const struct wl_pointer_interface wl_pointer_impl = {
.set_cursor = wl_pointer_set_cursor,
.release = resource_destroy
};
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static void wl_pointer_destroy(struct wl_resource *resource) {
struct wlr_seat_handle *handle = wl_resource_get_user_data(resource);
if (handle->pointer) {
handle->pointer = NULL;
}
}
static void wl_seat_get_pointer(struct wl_client *client,
struct wl_resource *_handle, uint32_t id) {
struct wlr_seat_handle *handle = wl_resource_get_user_data(_handle);
if (!(handle->wlr_seat->capabilities & WL_SEAT_CAPABILITY_POINTER)) {
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return;
}
if (handle->pointer) {
// TODO: this is probably a protocol violation but it simplifies our
// code and it'd be stupid for clients to create several pointers for
// the same seat
wl_resource_destroy(handle->pointer);
}
handle->pointer = wl_resource_create(client, &wl_pointer_interface,
wl_resource_get_version(_handle), id);
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wl_resource_set_implementation(handle->pointer, &wl_pointer_impl,
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handle, &wl_pointer_destroy);
}
static const struct wl_keyboard_interface wl_keyboard_impl = {
.release = resource_destroy
};
static void wl_keyboard_destroy(struct wl_resource *resource) {
struct wlr_seat_handle *handle = wl_resource_get_user_data(resource);
if (handle->keyboard) {
handle->keyboard = NULL;
}
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}
static void wl_seat_get_keyboard(struct wl_client *client,
struct wl_resource *_handle, uint32_t id) {
struct wlr_seat_handle *handle = wl_resource_get_user_data(_handle);
if (!(handle->wlr_seat->capabilities & WL_SEAT_CAPABILITY_KEYBOARD)) {
return;
}
if (handle->keyboard) {
// TODO: this is probably a protocol violation but it simplifies our
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// code and it'd be stupid for clients to create several keyboards for
// the same seat
wl_resource_destroy(handle->keyboard);
}
handle->keyboard = wl_resource_create(client, &wl_keyboard_interface,
wl_resource_get_version(_handle), id);
wl_resource_set_implementation(handle->keyboard, &wl_keyboard_impl,
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handle, &wl_keyboard_destroy);
}
static const struct wl_touch_interface wl_touch_impl = {
.release = resource_destroy
};
static void wl_touch_destroy(struct wl_resource *resource) {
struct wlr_seat_handle *handle = wl_resource_get_user_data(resource);
if (handle->touch) {
handle->touch = NULL;
}
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}
static void wl_seat_get_touch(struct wl_client *client,
struct wl_resource *_handle, uint32_t id) {
struct wlr_seat_handle *handle = wl_resource_get_user_data(_handle);
if (!(handle->wlr_seat->capabilities & WL_SEAT_CAPABILITY_TOUCH)) {
return;
}
if (handle->touch) {
// TODO: this is probably a protocol violation but it simplifies our
// code and it'd be stupid for clients to create several pointers for
// the same seat
wl_resource_destroy(handle->touch);
}
handle->touch = wl_resource_create(client, &wl_touch_interface,
wl_resource_get_version(_handle), id);
wl_resource_set_implementation(handle->touch, &wl_touch_impl,
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handle, &wl_touch_destroy);
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}
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static void wlr_seat_handle_resource_destroy(struct wl_resource *resource) {
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struct wlr_seat_handle *handle = wl_resource_get_user_data(resource);
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if (handle == handle->wlr_seat->pointer_state.focused_handle) {
handle->wlr_seat->pointer_state.focused_handle = NULL;
}
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if (handle == handle->wlr_seat->keyboard_state.focused_handle) {
handle->wlr_seat->keyboard_state.focused_handle = NULL;
}
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if (handle->pointer) {
wl_resource_destroy(handle->pointer);
}
if (handle->keyboard) {
wl_resource_destroy(handle->keyboard);
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}
if (handle->touch) {
wl_resource_destroy(handle->touch);
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}
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if (handle->data_device) {
wl_resource_destroy(handle->data_device);
}
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wl_signal_emit(&handle->wlr_seat->events.client_unbound, handle);
wl_list_remove(&handle->link);
free(handle);
}
struct wl_seat_interface wl_seat_impl = {
.get_pointer = wl_seat_get_pointer,
.get_keyboard = wl_seat_get_keyboard,
.get_touch = wl_seat_get_touch,
.release = resource_destroy
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};
static void wl_seat_bind(struct wl_client *wl_client, void *_wlr_seat,
uint32_t version, uint32_t id) {
struct wlr_seat *wlr_seat = _wlr_seat;
assert(wl_client && wlr_seat);
if (version > 6) {
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wlr_log(L_ERROR,
"Client requested unsupported wl_seat version, disconnecting");
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wl_client_destroy(wl_client);
return;
}
struct wlr_seat_handle *handle = calloc(1, sizeof(struct wlr_seat_handle));
handle->wl_resource = wl_resource_create(
wl_client, &wl_seat_interface, version, id);
handle->wlr_seat = wlr_seat;
wl_resource_set_implementation(handle->wl_resource, &wl_seat_impl,
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handle, wlr_seat_handle_resource_destroy);
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wl_list_insert(&wlr_seat->handles, &handle->link);
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if (version >= WL_SEAT_NAME_SINCE_VERSION) {
wl_seat_send_name(handle->wl_resource, wlr_seat->name);
}
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wl_seat_send_capabilities(handle->wl_resource, wlr_seat->capabilities);
wl_signal_emit(&wlr_seat->events.client_bound, handle);
}
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static void default_pointer_enter(struct wlr_seat_pointer_grab *grab,
struct wlr_surface *surface, double sx, double sy) {
wlr_seat_pointer_enter(grab->seat, surface, sx, sy);
}
static void default_pointer_motion(struct wlr_seat_pointer_grab *grab,
uint32_t time, double sx, double sy) {
wlr_seat_pointer_send_motion(grab->seat, time, sx, sy);
}
static uint32_t default_pointer_button(struct wlr_seat_pointer_grab *grab,
uint32_t time, uint32_t button, uint32_t state) {
return wlr_seat_pointer_send_button(grab->seat, time, button, state);
}
static void default_pointer_axis(struct wlr_seat_pointer_grab *grab,
uint32_t time, enum wlr_axis_orientation orientation, double value) {
wlr_seat_pointer_send_axis(grab->seat, time, orientation, value);
}
static void default_pointer_cancel(struct wlr_seat_pointer_grab *grab) {
// cannot be cancelled
}
static const struct wlr_pointer_grab_interface default_pointer_grab_impl = {
.enter = default_pointer_enter,
.motion = default_pointer_motion,
.button = default_pointer_button,
.axis = default_pointer_axis,
.cancel = default_pointer_cancel,
};
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static void default_keyboard_enter(struct wlr_seat_keyboard_grab *grab,
struct wlr_surface *surface) {
wlr_seat_keyboard_enter(grab->seat, surface);
}
static void default_keyboard_key(struct wlr_seat_keyboard_grab *grab,
uint32_t time, uint32_t key, uint32_t state) {
wlr_seat_keyboard_send_key(grab->seat, time, key, state);
}
static void default_keyboard_modifiers(struct wlr_seat_keyboard_grab *grab,
uint32_t mods_depressed, uint32_t mods_latched,
uint32_t mods_locked, uint32_t group) {
wlr_seat_keyboard_send_modifiers(grab->seat, mods_depressed,
mods_latched, mods_locked, group);
}
static void default_keyboard_cancel(struct wlr_seat_keyboard_grab *grab) {
// cannot be cancelled
}
static const struct wlr_keyboard_grab_interface default_keyboard_grab_impl = {
.enter = default_keyboard_enter,
.key = default_keyboard_key,
.modifiers = default_keyboard_modifiers,
.cancel = default_keyboard_cancel,
};
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struct wlr_seat *wlr_seat_create(struct wl_display *display, const char *name) {
struct wlr_seat *wlr_seat = calloc(1, sizeof(struct wlr_seat));
if (!wlr_seat) {
return NULL;
}
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wlr_seat->pointer_state.wlr_seat = wlr_seat;
wl_list_init(&wlr_seat->pointer_state.surface_destroy.link);
wl_list_init(&wlr_seat->pointer_state.resource_destroy.link);
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struct wlr_seat_pointer_grab *pointer_grab =
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calloc(1, sizeof(struct wlr_seat_pointer_grab));
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if (!pointer_grab) {
free(wlr_seat);
return NULL;
}
pointer_grab->interface = &default_pointer_grab_impl;
pointer_grab->seat = wlr_seat;
wlr_seat->pointer_state.default_grab = pointer_grab;
wlr_seat->pointer_state.grab = pointer_grab;
struct wlr_seat_keyboard_grab *keyboard_grab =
calloc(1, sizeof(struct wlr_seat_keyboard_grab));
if (!keyboard_grab) {
free(pointer_grab);
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free(wlr_seat);
return NULL;
}
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keyboard_grab->interface = &default_keyboard_grab_impl;
keyboard_grab->seat = wlr_seat;
wlr_seat->keyboard_state.default_grab = keyboard_grab;
wlr_seat->keyboard_state.grab = keyboard_grab;
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wlr_seat->keyboard_state.wlr_seat = wlr_seat;
wl_list_init(&wlr_seat->keyboard_state.resource_destroy.link);
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wl_list_init(
&wlr_seat->keyboard_state.surface_destroy.link);
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struct wl_global *wl_global = wl_global_create(display,
&wl_seat_interface, 6, wlr_seat, wl_seat_bind);
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if (!wl_global) {
free(wlr_seat);
return NULL;
}
wlr_seat->wl_global = wl_global;
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wlr_seat->display = display;
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wlr_seat->name = strdup(name);
wl_list_init(&wlr_seat->handles);
wl_list_init(&wlr_seat->keyboards);
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wl_signal_init(&wlr_seat->events.client_bound);
wl_signal_init(&wlr_seat->events.client_unbound);
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wl_signal_init(&wlr_seat->events.request_set_cursor);
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wl_signal_init(&wlr_seat->events.pointer_grab_begin);
wl_signal_init(&wlr_seat->events.pointer_grab_end);
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wl_signal_init(&wlr_seat->events.keyboard_grab_begin);
wl_signal_init(&wlr_seat->events.keyboard_grab_end);
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return wlr_seat;
}
void wlr_seat_destroy(struct wlr_seat *wlr_seat) {
if (!wlr_seat) {
return;
}
struct wlr_seat_handle *handle, *tmp;
wl_list_for_each_safe(handle, tmp, &wlr_seat->handles, link) {
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// will destroy other resources as well
wl_resource_destroy(handle->wl_resource);
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}
wl_global_destroy(wlr_seat->wl_global);
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free(wlr_seat->pointer_state.default_grab);
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free(wlr_seat->keyboard_state.default_grab);
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free(wlr_seat->data_device);
free(wlr_seat->name);
free(wlr_seat);
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}
struct wlr_seat_handle *wlr_seat_handle_for_client(struct wlr_seat *wlr_seat,
struct wl_client *client) {
assert(wlr_seat);
struct wlr_seat_handle *handle;
wl_list_for_each(handle, &wlr_seat->handles, link) {
if (wl_resource_get_client(handle->wl_resource) == client) {
return handle;
}
}
return NULL;
}
void wlr_seat_set_capabilities(struct wlr_seat *wlr_seat,
uint32_t capabilities) {
wlr_seat->capabilities = capabilities;
struct wlr_seat_handle *handle;
wl_list_for_each(handle, &wlr_seat->handles, link) {
wl_seat_send_capabilities(handle->wl_resource, capabilities);
}
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}
void wlr_seat_set_name(struct wlr_seat *wlr_seat, const char *name) {
free(wlr_seat->name);
wlr_seat->name = strdup(name);
struct wlr_seat_handle *handle;
wl_list_for_each(handle, &wlr_seat->handles, link) {
wl_seat_send_name(handle->wl_resource, name);
}
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}
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bool wlr_seat_pointer_surface_has_focus(struct wlr_seat *wlr_seat,
struct wlr_surface *surface) {
return surface == wlr_seat->pointer_state.focused_surface;
}
static void pointer_surface_destroy_notify(struct wl_listener *listener,
void *data) {
struct wlr_seat_pointer_state *state = wl_container_of(
listener, state, surface_destroy);
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wl_list_remove(&state->surface_destroy.link);
wl_list_init(&state->surface_destroy.link);
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state->focused_surface = NULL;
wlr_seat_pointer_clear_focus(state->wlr_seat);
}
static void pointer_resource_destroy_notify(struct wl_listener *listener,
void *data) {
struct wlr_seat_pointer_state *state = wl_container_of(
listener, state, resource_destroy);
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wl_list_remove(&state->resource_destroy.link);
wl_list_init(&state->resource_destroy.link);
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state->focused_surface = NULL;
wlr_seat_pointer_clear_focus(state->wlr_seat);
}
static bool wlr_seat_pointer_has_focus_resource(struct wlr_seat *wlr_seat) {
return wlr_seat->pointer_state.focused_handle &&
wlr_seat->pointer_state.focused_handle->pointer;
}
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void wlr_seat_pointer_enter(struct wlr_seat *wlr_seat,
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struct wlr_surface *surface, double sx, double sy) {
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assert(wlr_seat);
if (wlr_seat->pointer_state.focused_surface == surface) {
// this surface already got an enter notify
return;
}
struct wlr_seat_handle *handle = NULL;
if (surface) {
struct wl_client *client = wl_resource_get_client(surface->resource);
handle = wlr_seat_handle_for_client(wlr_seat, client);
}
struct wlr_seat_handle *focused_handle =
wlr_seat->pointer_state.focused_handle;
struct wlr_surface *focused_surface =
wlr_seat->pointer_state.focused_surface;
// leave the previously entered surface
if (focused_handle && focused_handle->pointer && focused_surface) {
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uint32_t serial = wl_display_next_serial(wlr_seat->display);
wl_pointer_send_leave(focused_handle->pointer, serial,
focused_surface->resource);
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pointer_send_frame(focused_handle->pointer);
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}
// enter the current surface
if (handle && handle->pointer) {
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uint32_t serial = wl_display_next_serial(wlr_seat->display);
wl_pointer_send_enter(handle->pointer, serial, surface->resource,
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wl_fixed_from_double(sx), wl_fixed_from_double(sy));
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pointer_send_frame(handle->pointer);
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}
// reinitialize the focus destroy events
wl_list_remove(&wlr_seat->pointer_state.surface_destroy.link);
wl_list_init(&wlr_seat->pointer_state.surface_destroy.link);
wl_list_remove(&wlr_seat->pointer_state.resource_destroy.link);
wl_list_init(&wlr_seat->pointer_state.resource_destroy.link);
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if (surface) {
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wl_signal_add(&surface->events.destroy,
&wlr_seat->pointer_state.surface_destroy);
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wl_resource_add_destroy_listener(surface->resource,
&wlr_seat->pointer_state.resource_destroy);
wlr_seat->pointer_state.resource_destroy.notify =
pointer_resource_destroy_notify;
wlr_seat->pointer_state.surface_destroy.notify =
pointer_surface_destroy_notify;
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}
wlr_seat->pointer_state.focused_handle = handle;
wlr_seat->pointer_state.focused_surface = surface;
// TODO: send focus change event
}
void wlr_seat_pointer_clear_focus(struct wlr_seat *wlr_seat) {
wlr_seat_pointer_enter(wlr_seat, NULL, 0, 0);
}
void wlr_seat_pointer_send_motion(struct wlr_seat *wlr_seat, uint32_t time,
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double sx, double sy) {
if (!wlr_seat_pointer_has_focus_resource(wlr_seat)) {
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return;
}
wl_pointer_send_motion(wlr_seat->pointer_state.focused_handle->pointer,
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time, wl_fixed_from_double(sx), wl_fixed_from_double(sy));
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pointer_send_frame(wlr_seat->pointer_state.focused_handle->pointer);
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}
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uint32_t wlr_seat_pointer_send_button(struct wlr_seat *wlr_seat, uint32_t time,
uint32_t button, uint32_t state) {
if (!wlr_seat_pointer_has_focus_resource(wlr_seat)) {
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return 0;
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}
uint32_t serial = wl_display_next_serial(wlr_seat->display);
wl_pointer_send_button(wlr_seat->pointer_state.focused_handle->pointer,
serial, time, button, state);
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pointer_send_frame(wlr_seat->pointer_state.focused_handle->pointer);
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return serial;
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}
void wlr_seat_pointer_send_axis(struct wlr_seat *wlr_seat, uint32_t time,
enum wlr_axis_orientation orientation, double value) {
if (!wlr_seat_pointer_has_focus_resource(wlr_seat)) {
return;
}
struct wl_resource *pointer =
wlr_seat->pointer_state.focused_handle->pointer;
if (value) {
wl_pointer_send_axis(pointer, time, orientation,
wl_fixed_from_double(value));
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} else if (wl_resource_get_version(pointer) >=
WL_POINTER_AXIS_STOP_SINCE_VERSION) {
wl_pointer_send_axis_stop(pointer, time, orientation);
}
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pointer_send_frame(pointer);
}
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void wlr_seat_pointer_start_grab(struct wlr_seat *wlr_seat,
struct wlr_seat_pointer_grab *grab) {
grab->seat = wlr_seat;
wlr_seat->pointer_state.grab = grab;
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wl_signal_emit(&wlr_seat->events.pointer_grab_begin, grab);
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}
void wlr_seat_pointer_end_grab(struct wlr_seat *wlr_seat) {
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struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
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if (grab != wlr_seat->pointer_state.default_grab) {
wlr_seat->pointer_state.grab = wlr_seat->pointer_state.default_grab;
}
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}
void wlr_seat_pointer_notify_enter(struct wlr_seat *wlr_seat,
struct wlr_surface *surface, double sx, double sy) {
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
grab->interface->enter(grab, surface, sx, sy);
}
void wlr_seat_pointer_notify_motion(struct wlr_seat *wlr_seat, uint32_t time,
double sx, double sy) {
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
grab->interface->motion(grab, time, sx, sy);
}
uint32_t wlr_seat_pointer_notify_button(struct wlr_seat *wlr_seat,
uint32_t time, uint32_t button, uint32_t state) {
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
return grab->interface->button(grab, time, button, state);
}
void wlr_seat_pointer_notify_axis(struct wlr_seat *wlr_seat, uint32_t time,
enum wlr_axis_orientation orientation, double value) {
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
grab->interface->axis(grab, time, orientation, value);
}
static void keyboard_switch_seat_keyboard(struct wlr_seat_handle *handle,
struct wlr_seat_keyboard *seat_kb) {
if (handle->seat_keyboard == seat_kb) {
return;
}
// TODO: We should probably lift all of the keys set by the other
// keyboard
wl_keyboard_send_keymap(handle->keyboard,
WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1, seat_kb->keyboard->keymap_fd,
seat_kb->keyboard->keymap_size);
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if (wl_resource_get_version(handle->keyboard) >=
WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION) {
// TODO: Make this better
wl_keyboard_send_repeat_info(handle->keyboard, 25, 600);
}
handle->seat_keyboard = seat_kb;
}
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void wlr_seat_keyboard_send_key(struct wlr_seat *wlr_seat, uint32_t time,
uint32_t key, uint32_t state) {
struct wlr_seat_handle *handle = wlr_seat->keyboard_state.focused_handle;
if (!handle || !handle->keyboard) {
return;
}
uint32_t serial = wl_display_next_serial(wlr_seat->display);
wl_keyboard_send_key(handle->keyboard, serial,
time, key, state);
}
static void keyboard_key_notify(struct wl_listener *listener, void *data) {
struct wlr_seat_keyboard *seat_kb = wl_container_of(listener, seat_kb, key);
struct wlr_seat *seat = seat_kb->seat;
struct wlr_seat_handle *handle = seat->keyboard_state.focused_handle;
if (!handle || !handle->keyboard) {
return;
}
keyboard_switch_seat_keyboard(handle, seat_kb);
struct wlr_event_keyboard_key *event = data;
enum wlr_key_state key_state = event->state;
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struct wlr_seat_keyboard_grab *grab = seat->keyboard_state.grab;
grab->interface->key(grab, (uint32_t)(event->time_usec / 1000),
event->keycode, key_state);
}
static void keyboard_modifiers_notify(struct wl_listener *listener,
void *data) {
struct wlr_seat_keyboard *seat_kb = wl_container_of(listener, seat_kb,
modifiers);
struct wlr_seat *seat = seat_kb->seat;
struct wlr_seat_handle *handle = seat->keyboard_state.focused_handle;
if (!handle || !handle->keyboard) {
return;
}
keyboard_switch_seat_keyboard(handle, seat_kb);
struct wlr_keyboard *keyboard = seat_kb->keyboard;
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struct wlr_seat_keyboard_grab *grab = seat->keyboard_state.grab;
grab->interface->modifiers(grab,
keyboard->modifiers.depressed, keyboard->modifiers.latched,
keyboard->modifiers.locked, keyboard->modifiers.group);
}
static void keyboard_keymap_notify(struct wl_listener *listener, void *data) {
struct wlr_seat_keyboard *seat_kb = wl_container_of(
listener, seat_kb, keymap);
wlr_log(L_DEBUG, "Keymap event for %p", seat_kb);
}
static void keyboard_destroy_notify(struct wl_listener *listener, void *data) {
struct wlr_seat_keyboard *seat_kb = wl_container_of(
listener, seat_kb, destroy);
wlr_seat_detach_keyboard(seat_kb->seat, seat_kb->keyboard);
}
void wlr_seat_attach_keyboard(struct wlr_seat *seat,
struct wlr_input_device *dev) {
assert(seat && dev && dev->type == WLR_INPUT_DEVICE_KEYBOARD);
struct wlr_keyboard *kb = dev->keyboard;
struct wlr_seat_keyboard *seat_kb =
calloc(1, sizeof(struct wlr_seat_keyboard));
seat_kb->keyboard = kb;
seat_kb->seat = seat;
wl_list_init(&seat_kb->key.link);
seat_kb->key.notify = keyboard_key_notify;
wl_signal_add(&kb->events.key, &seat_kb->key);
wl_list_init(&seat_kb->modifiers.link);
seat_kb->modifiers.notify = keyboard_modifiers_notify;
wl_signal_add(&kb->events.modifiers, &seat_kb->modifiers);
wl_list_init(&seat_kb->keymap.link);
seat_kb->keymap.notify = keyboard_keymap_notify;
wl_signal_add(&kb->events.keymap, &seat_kb->keymap);
// TODO: update keymap as necessary
wl_list_init(&seat_kb->destroy.link);
seat_kb->destroy.notify = keyboard_destroy_notify;
wl_signal_add(&dev->events.destroy, &seat_kb->destroy);
wl_list_insert(&seat->keyboards, &seat_kb->link);
}
void wlr_seat_detach_keyboard(struct wlr_seat *seat, struct wlr_keyboard *kb) {
struct wlr_seat_keyboard *seat_kb, *_tmp;
wl_list_for_each_safe(seat_kb, _tmp, &seat->keyboards, link) {
if (seat_kb->keyboard == kb) {
wl_list_remove(&seat_kb->link);
wl_list_remove(&seat_kb->key.link);
wl_list_remove(&seat_kb->modifiers.link);
wl_list_remove(&seat_kb->keymap.link);
wl_list_remove(&seat_kb->destroy.link);
free(seat_kb);
break;
}
}
}
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void wlr_seat_keyboard_start_grab(struct wlr_seat *wlr_seat,
struct wlr_seat_keyboard_grab *grab) {
grab->seat = wlr_seat;
wlr_seat->keyboard_state.grab = grab;
wl_signal_emit(&wlr_seat->events.keyboard_grab_begin, grab);
}
void wlr_seat_keyboard_end_grab(struct wlr_seat *wlr_seat) {
struct wlr_seat_keyboard_grab *grab = wlr_seat->keyboard_state.grab;
wlr_seat->keyboard_state.grab = wlr_seat->keyboard_state.default_grab;
wl_signal_emit(&wlr_seat->events.keyboard_grab_end, grab);
}
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static void keyboard_surface_destroy_notify(struct wl_listener *listener,
void *data) {
struct wlr_seat_keyboard_state *state = wl_container_of(
listener, state, surface_destroy);
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wl_list_remove(&state->surface_destroy.link);
wl_list_init(&state->surface_destroy.link);
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state->focused_surface = NULL;
wlr_seat_keyboard_clear_focus(state->wlr_seat);
}
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static void keyboard_resource_destroy_notify(struct wl_listener *listener,
void *data) {
struct wlr_seat_keyboard_state *state = wl_container_of(
listener, state, resource_destroy);
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wl_list_remove(&state->resource_destroy.link);
wl_list_init(&state->resource_destroy.link);
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state->focused_surface = NULL;
wlr_seat_keyboard_clear_focus(state->wlr_seat);
}
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void wlr_seat_keyboard_send_modifiers(struct wlr_seat *seat,
uint32_t mods_depressed, uint32_t mods_latched, uint32_t mods_locked,
uint32_t group) {
struct wlr_seat_handle *handle = seat->keyboard_state.focused_handle;
if (!handle || !handle->keyboard) {
return;
}
uint32_t serial = wl_display_next_serial(seat->display);
wl_keyboard_send_modifiers(handle->keyboard, serial,
mods_depressed, mods_latched,
mods_locked, group);
}
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void wlr_seat_keyboard_enter(struct wlr_seat *wlr_seat,
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struct wlr_surface *surface) {
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if (wlr_seat->keyboard_state.focused_surface == surface) {
// this surface already got an enter notify
return;
}
struct wlr_seat_handle *handle = NULL;
if (surface) {
struct wl_client *client = wl_resource_get_client(surface->resource);
handle = wlr_seat_handle_for_client(wlr_seat, client);
}
struct wlr_seat_handle *focused_handle =
wlr_seat->keyboard_state.focused_handle;
struct wlr_surface *focused_surface =
wlr_seat->keyboard_state.focused_surface;
// leave the previously entered surface
if (focused_handle && focused_handle->keyboard && focused_surface) {
uint32_t serial = wl_display_next_serial(wlr_seat->display);
wl_keyboard_send_leave(focused_handle->keyboard, serial,
focused_surface->resource);
}
// enter the current surface
if (handle && handle->keyboard) {
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// TODO: handle keys properly
struct wl_array keys;
wl_array_init(&keys);
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uint32_t serial = wl_display_next_serial(wlr_seat->display);
wl_keyboard_send_enter(handle->keyboard, serial,
surface->resource, &keys);
}
// reinitialize the focus destroy events
wl_list_remove(&wlr_seat->keyboard_state.surface_destroy.link);
wl_list_init(&wlr_seat->keyboard_state.surface_destroy.link);
wl_list_remove(&wlr_seat->keyboard_state.resource_destroy.link);
wl_list_init(&wlr_seat->keyboard_state.resource_destroy.link);
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if (surface) {
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wl_signal_add(&surface->events.destroy,
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&wlr_seat->keyboard_state.surface_destroy);
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wl_resource_add_destroy_listener(surface->resource,
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&wlr_seat->keyboard_state.resource_destroy);
wlr_seat->keyboard_state.resource_destroy.notify =
keyboard_resource_destroy_notify;
wlr_seat->keyboard_state.surface_destroy.notify =
keyboard_surface_destroy_notify;
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}
wlr_seat->keyboard_state.focused_handle = handle;
wlr_seat->keyboard_state.focused_surface = surface;
}
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void wlr_seat_keyboard_notify_enter(struct wlr_seat *wlr_seat, struct
wlr_surface *surface) {
struct wlr_seat_keyboard_grab *grab = wlr_seat->keyboard_state.grab;
grab->interface->enter(grab, surface);
}
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void wlr_seat_keyboard_clear_focus(struct wlr_seat *wlr_seat) {
struct wl_array keys;
wl_array_init(&keys);
wlr_seat_keyboard_enter(wlr_seat, NULL);
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}