wlroots/backend/libinput/backend.c

103 lines
2.9 KiB
C

#include <stdlib.h>
#include <assert.h>
#include <libinput.h>
#include <wlr/session.h>
#include <wlr/backend/interface.h>
#include "backend/udev.h"
#include "backend/libinput/backend.h"
#include "common/log.h"
static int wlr_libinput_open_restricted(const char *path,
int flags, void *_state) {
struct wlr_backend_state *state = _state;
return wlr_session_open_file(state->session, path);
}
static void wlr_libinput_close_restricted(int fd, void *_state) {
struct wlr_backend_state *state = _state;
wlr_session_close_file(state->session, fd);
}
static const struct libinput_interface libinput_impl = {
.open_restricted = wlr_libinput_open_restricted,
.close_restricted = wlr_libinput_close_restricted
};
static int wlr_libinput_handle_event(int fd, uint32_t mask, void *_state) {
// TODO
return 0;
}
static void wlr_libinput_log(struct libinput *libinput,
enum libinput_log_priority priority, const char *fmt, va_list args) {
_wlr_vlog(L_ERROR, fmt, args);
}
static bool wlr_libinput_backend_init(struct wlr_backend_state *state) {
wlr_log(L_DEBUG, "Initializing libinput");
state->handle = libinput_udev_create_context(&libinput_impl, state,
state->udev->udev);
if (!state->handle) {
wlr_log(L_ERROR, "Failed to create libinput context");
return false;
}
// TODO: Let user customize seat used
if (!libinput_udev_assign_seat(state->handle, "seat0")) {
wlr_log(L_ERROR, "Failed to assign libinput seat");
return false;
}
// TODO: More sophisticated logging
libinput_log_set_handler(state->handle, wlr_libinput_log);
libinput_log_set_priority(state->handle, LIBINPUT_LOG_PRIORITY_ERROR);
struct wl_event_loop *event_loop =
wl_display_get_event_loop(state->display);
if (state->input_event) {
wl_event_source_remove(state->input_event);
}
state->input_event = wl_event_loop_add_fd(event_loop,
libinput_get_fd(state->handle), WL_EVENT_READABLE,
wlr_libinput_handle_event, state);
if (!state->input_event) {
wlr_log(L_ERROR, "Failed to create input event on event loop");
return false;
}
wlr_log(L_DEBUG, "libinput sucessfully initialized");
return true;
}
static void wlr_libinput_backend_destroy(struct wlr_backend_state *state) {
// TODO
}
static struct wlr_backend_impl backend_impl = {
.init = wlr_libinput_backend_init,
.destroy = wlr_libinput_backend_destroy
};
struct wlr_backend *wlr_libinput_backend_create(struct wl_display *display,
struct wlr_session *session, struct wlr_udev *udev) {
assert(display && session && udev);
struct wlr_backend_state *state = calloc(1, sizeof(struct wlr_backend_state));
if (!state) {
wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
return NULL;
}
struct wlr_backend *backend = wlr_backend_create(&backend_impl, state);
if (!backend) {
wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
return NULL;
}
state->backend = backend;
state->session = session;
state->udev = udev;
state->display = display;
return backend;
}