140 lines
3.9 KiB
C
140 lines
3.9 KiB
C
#include <stdlib.h>
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#include <assert.h>
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#include <libinput.h>
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#include <wlr/session.h>
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#include <wlr/backend/interface.h>
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#include <wlr/util/log.h>
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#include "backend/udev.h"
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#include "backend/libinput.h"
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static int wlr_libinput_open_restricted(const char *path,
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int flags, void *_state) {
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struct wlr_backend_state *state = _state;
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return wlr_session_open_file(state->session, path);
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}
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static void wlr_libinput_close_restricted(int fd, void *_state) {
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struct wlr_backend_state *state = _state;
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wlr_session_close_file(state->session, fd);
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}
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static const struct libinput_interface libinput_impl = {
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.open_restricted = wlr_libinput_open_restricted,
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.close_restricted = wlr_libinput_close_restricted
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};
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static int wlr_libinput_readable(int fd, uint32_t mask, void *_state) {
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struct wlr_backend_state *state = _state;
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if (libinput_dispatch(state->libinput) != 0) {
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wlr_log(L_ERROR, "Failed to dispatch libinput");
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// TODO: some kind of abort?
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return 0;
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}
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struct libinput_event *event;
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while ((event = libinput_get_event(state->libinput))) {
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wlr_libinput_event(state, event);
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}
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return 0;
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}
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static void wlr_libinput_log(struct libinput *libinput,
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enum libinput_log_priority priority, const char *fmt, va_list args) {
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_wlr_vlog(L_ERROR, fmt, args);
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}
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static bool wlr_libinput_backend_init(struct wlr_backend_state *state) {
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wlr_log(L_DEBUG, "Initializing libinput");
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state->libinput = libinput_udev_create_context(&libinput_impl, state,
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state->udev->udev);
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if (!state->libinput) {
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wlr_log(L_ERROR, "Failed to create libinput context");
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return false;
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}
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// TODO: Let user customize seat used
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if (libinput_udev_assign_seat(state->libinput, "seat0") != 0) {
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wlr_log(L_ERROR, "Failed to assign libinput seat");
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return false;
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}
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// TODO: More sophisticated logging
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libinput_log_set_handler(state->libinput, wlr_libinput_log);
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libinput_log_set_priority(state->libinput, LIBINPUT_LOG_PRIORITY_ERROR);
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struct wl_event_loop *event_loop =
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wl_display_get_event_loop(state->display);
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if (state->input_event) {
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wl_event_source_remove(state->input_event);
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}
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state->input_event = wl_event_loop_add_fd(event_loop,
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libinput_get_fd(state->libinput), WL_EVENT_READABLE,
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wlr_libinput_readable, state);
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if (!state->input_event) {
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wlr_log(L_ERROR, "Failed to create input event on event loop");
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return false;
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}
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wlr_log(L_DEBUG, "libinput sucessfully initialized");
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return true;
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}
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static void wlr_libinput_backend_destroy(struct wlr_backend_state *state) {
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// TODO
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}
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static struct wlr_backend_impl backend_impl = {
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.init = wlr_libinput_backend_init,
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.destroy = wlr_libinput_backend_destroy
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};
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static void session_signal(struct wl_listener *listener, void *data) {
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struct wlr_backend_state *backend = wl_container_of(listener, backend, session_signal);
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struct wlr_session *session = data;
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if (!backend->libinput) {
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return;
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}
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if (session->active) {
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libinput_resume(backend->libinput);
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} else {
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libinput_suspend(backend->libinput);
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}
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}
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struct wlr_backend *wlr_libinput_backend_create(struct wl_display *display,
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struct wlr_session *session, struct wlr_udev *udev) {
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assert(display && session && udev);
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struct wlr_backend_state *state = calloc(1, sizeof(struct wlr_backend_state));
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if (!state) {
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wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
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return NULL;
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}
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struct wlr_backend *backend = wlr_backend_create(&backend_impl, state);
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if (!backend) {
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wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
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goto error_state;
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}
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if (!(state->devices = list_create())) {
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wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
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goto error_backend;
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}
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state->backend = backend;
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state->session = session;
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state->udev = udev;
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state->display = display;
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state->session_signal.notify = session_signal;
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wl_signal_add(&session->session_signal, &state->session_signal);
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return backend;
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error_state:
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free(state);
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error_backend:
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wlr_backend_destroy(backend);
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return NULL;
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}
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