wlroots/backend/wayland/wl_seat.c

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#define _XOPEN_SOURCE 500
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#include <assert.h>
#include <stdlib.h>
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#include <stdint.h>
#include <string.h>
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#include <wayland-client.h>
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#include <wlr/interfaces/wlr_output.h>
#include <wlr/interfaces/wlr_input_device.h>
#include <wlr/interfaces/wlr_pointer.h>
#include <wlr/interfaces/wlr_keyboard.h>
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#include "backend/wayland.h"
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#include "common/log.h"
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static void wlr_wl_device_destroy(struct wlr_input_device_state *state) {
free(state);
}
static struct wlr_input_device_impl input_device_impl = {
.destroy = wlr_wl_device_destroy
};
static struct wlr_input_device *allocate_device(struct wlr_backend_state *state,
enum wlr_input_device_type type) {
struct wlr_input_device_state *devstate =
calloc(1, sizeof(struct wlr_input_device_state));
if(!devstate) {
wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
return NULL;
}
// TODO: any way to retrieve those information?
int vendor = 0;
int product = 0;
const char *name = "unknown;wayland";
struct wlr_input_device *wlr_device = wlr_input_device_create(
type, &input_device_impl, devstate,
name, vendor, product);
if(!wlr_device) {
free(devstate);
return NULL;
}
list_add(state->devices, wlr_device);
return wlr_device;
}
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static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
enum wl_seat_capability caps) {
struct wlr_backend_state *state = data;
assert(state->seat == wl_seat);
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// TODO: add listeners and receive input
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if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
wlr_log(L_DEBUG, "seat %p offered pointer", wl_seat);
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struct wl_pointer *wl_pointer = wl_seat_get_pointer(wl_seat);
struct wlr_input_device *wlr_device = allocate_device(state,
WLR_INPUT_DEVICE_POINTER);
if(!wlr_device) {
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wl_pointer_destroy(wl_pointer);
wlr_log(L_ERROR, "Unable to allocate wl_pointer device");
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return;
}
wlr_device->pointer = wlr_pointer_create(NULL, NULL);
list_add(state->devices, wlr_device);
wl_signal_emit(&state->backend->events.input_add, wlr_device);
}
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if ((caps & WL_SEAT_CAPABILITY_KEYBOARD)) {
wlr_log(L_DEBUG, "seat %p offered keyboard", wl_seat);
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struct wl_keyboard *wl_keyboard = wl_seat_get_keyboard(wl_seat);
struct wlr_input_device *wlr_device = allocate_device(state,
WLR_INPUT_DEVICE_KEYBOARD);
if(!wlr_device) {
wl_keyboard_release(wl_keyboard);
wlr_log(L_ERROR, "Unable to allocate wl_pointer device");
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return;
}
wlr_device->keyboard = wlr_keyboard_create(NULL, NULL);
list_add(state->devices, wlr_device);
wl_signal_emit(&state->backend->events.input_add, wlr_device);
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}
// TODO: touch
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}
static void seat_handle_name(void *data, struct wl_seat *wl_seat, const char *name) {
struct wlr_backend_state *state = data;
assert(state->seat == wl_seat);
state->seatName = strdup(name);
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}
const struct wl_seat_listener seat_listener = {
.capabilities = seat_handle_capabilities,
.name = seat_handle_name,
};