wlroots-hyprland/types/wlr_keyboard.c

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#include <assert.h>
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#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>
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#include <wayland-server.h>
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#include <wlr/types/wlr_keyboard.h>
#include <wlr/interfaces/wlr_keyboard.h>
#include <wlr/util/log.h>
int os_create_anonymous_file(off_t size);
static void keyboard_led_update(struct wlr_keyboard *keyboard) {
uint32_t leds = 0;
for (uint32_t i = 0; i < WLR_LED_LAST; ++i) {
if (xkb_state_led_index_is_active(keyboard->xkb_state, keyboard->leds[i])) {
leds |= (1 << i);
}
}
wlr_keyboard_led_update(keyboard, leds);
}
void wlr_keyboard_update_state(struct wlr_keyboard *keyboard,
struct wlr_event_keyboard_key *event) {
uint32_t keycode = event->keycode + 8;
xkb_state_update_key(keyboard->xkb_state, keycode,
event->state == WLR_KEY_PRESSED ? XKB_KEY_DOWN : XKB_KEY_UP);
keyboard_led_update(keyboard);
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wl_signal_emit(&keyboard->events.key, event);
}
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void wlr_keyboard_init(struct wlr_keyboard *kb,
struct wlr_keyboard_impl *impl) {
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kb->impl = impl;
wl_signal_init(&kb->events.key);
wl_signal_init(&kb->events.keymap);
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}
void wlr_keyboard_destroy(struct wlr_keyboard *kb) {
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if (kb && kb->impl && kb->impl->destroy) {
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kb->impl->destroy(kb);
} else {
wl_list_remove(&kb->events.key.listener_list);
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free(kb);
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}
close(kb->keymap_fd);
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}
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void wlr_keyboard_led_update(struct wlr_keyboard *kb, uint32_t leds) {
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if (kb->impl && kb->impl->led_update) {
kb->impl->led_update(kb, leds);
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}
}
void wlr_keyboard_set_keymap(struct wlr_keyboard *kb,
struct xkb_keymap *keymap) {
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wlr_log(L_DEBUG, "Keymap set");
kb->keymap = keymap;
assert(kb->xkb_state = xkb_state_new(kb->keymap));
const char *led_names[3] = {
XKB_LED_NAME_NUM,
XKB_LED_NAME_CAPS,
XKB_LED_NAME_SCROLL
};
for (uint32_t i = 0; i < 3; ++i) {
kb->leds[i] = xkb_map_led_get_index(kb->keymap, led_names[i]);
}
char *keymap_str = xkb_keymap_get_as_string(kb->keymap,
XKB_KEYMAP_FORMAT_TEXT_V1);
kb->keymap_size = strlen(keymap_str) + 1;
kb->keymap_fd = os_create_anonymous_file(kb->keymap_size);
void *ptr = mmap(NULL, kb->keymap_size,
PROT_READ | PROT_WRITE, MAP_SHARED, kb->keymap_fd, 0);
strcpy(ptr, keymap_str);
free(keymap_str);
wl_signal_emit(&kb->events.keymap, kb);
}