mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-12-23 18:39:48 +01:00
197 lines
5.9 KiB
C
197 lines
5.9 KiB
C
#include <assert.h>
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#include <libinput.h>
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#include <stdlib.h>
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#include <wlr/backend/interface.h>
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#include <wlr/backend/session.h>
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#include <wlr/util/log.h>
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#include "backend/libinput.h"
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#include "util/signal.h"
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static int wlr_libinput_open_restricted(const char *path,
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int flags, void *_backend) {
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struct wlr_libinput_backend *backend = _backend;
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return wlr_session_open_file(backend->session, path);
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}
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static void wlr_libinput_close_restricted(int fd, void *_backend) {
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struct wlr_libinput_backend *backend = _backend;
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wlr_session_close_file(backend->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 *_backend) {
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struct wlr_libinput_backend *backend = _backend;
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if (libinput_dispatch(backend->libinput_context) != 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(backend->libinput_context))) {
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wlr_libinput_event(backend, event);
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libinput_event_destroy(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_context,
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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_start(struct wlr_backend *_backend) {
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struct wlr_libinput_backend *backend =
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(struct wlr_libinput_backend *)_backend;
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wlr_log(L_DEBUG, "Initializing libinput");
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backend->libinput_context = libinput_udev_create_context(&libinput_impl,
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backend, backend->session->udev);
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if (!backend->libinput_context) {
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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(backend->libinput_context, "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(backend->libinput_context, wlr_libinput_log);
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libinput_log_set_priority(backend->libinput_context, LIBINPUT_LOG_PRIORITY_ERROR);
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int libinput_fd = libinput_get_fd(backend->libinput_context);
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char *no_devs = getenv("WLR_LIBINPUT_NO_DEVICES");
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if (no_devs) {
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if (strcmp(no_devs, "1") != 0) {
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no_devs = NULL;
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}
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}
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if (!no_devs && backend->wlr_device_lists.length == 0) {
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wlr_libinput_readable(libinput_fd, WL_EVENT_READABLE, backend);
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if (backend->wlr_device_lists.length == 0) {
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wlr_log(L_ERROR, "libinput initialization failed, no input devices");
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wlr_log(L_ERROR, "Set WLR_LIBINPUT_NO_DEVICES=1 to suppress this check");
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return false;
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}
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}
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struct wl_event_loop *event_loop =
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wl_display_get_event_loop(backend->display);
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if (backend->input_event) {
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wl_event_source_remove(backend->input_event);
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}
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backend->input_event = wl_event_loop_add_fd(event_loop, libinput_fd,
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WL_EVENT_READABLE, wlr_libinput_readable, backend);
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if (!backend->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 *wlr_backend) {
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if (!wlr_backend) {
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return;
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}
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struct wlr_libinput_backend *backend =
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(struct wlr_libinput_backend *)wlr_backend;
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for (size_t i = 0; i < backend->wlr_device_lists.length; i++) {
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struct wl_list *wlr_devices = backend->wlr_device_lists.items[i];
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struct wlr_input_device *wlr_dev, *next;
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wl_list_for_each_safe(wlr_dev, next, wlr_devices, link) {
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wlr_input_device_destroy(wlr_dev);
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}
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free(wlr_devices);
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}
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wlr_signal_emit_safe(&wlr_backend->events.destroy, wlr_backend);
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wl_list_remove(&backend->display_destroy.link);
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wl_list_remove(&backend->session_signal.link);
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wlr_list_finish(&backend->wlr_device_lists);
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if (backend->input_event) {
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wl_event_source_remove(backend->input_event);
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}
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libinput_unref(backend->libinput_context);
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free(backend);
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}
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static struct wlr_backend_impl backend_impl = {
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.start = wlr_libinput_backend_start,
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.destroy = wlr_libinput_backend_destroy
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};
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bool wlr_backend_is_libinput(struct wlr_backend *b) {
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return b->impl == &backend_impl;
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}
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static void session_signal(struct wl_listener *listener, void *data) {
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struct wlr_libinput_backend *backend =
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wl_container_of(listener, backend, session_signal);
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struct wlr_session *session = data;
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if (!backend->libinput_context) {
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return;
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}
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if (session->active) {
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libinput_resume(backend->libinput_context);
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} else {
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libinput_suspend(backend->libinput_context);
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}
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}
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static void handle_display_destroy(struct wl_listener *listener, void *data) {
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struct wlr_libinput_backend *backend =
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wl_container_of(listener, backend, display_destroy);
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wlr_libinput_backend_destroy(&backend->backend);
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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) {
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assert(display && session);
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struct wlr_libinput_backend *backend = calloc(1, sizeof(struct wlr_libinput_backend));
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if (!backend) {
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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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wlr_backend_init(&backend->backend, &backend_impl);
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if (!wlr_list_init(&backend->wlr_device_lists)) {
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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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backend->session = session;
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backend->display = display;
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backend->session_signal.notify = session_signal;
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wl_signal_add(&session->session_signal, &backend->session_signal);
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backend->display_destroy.notify = handle_display_destroy;
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wl_display_add_destroy_listener(display, &backend->display_destroy);
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return &backend->backend;
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error_backend:
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free(backend);
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return NULL;
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}
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struct libinput_device *wlr_libinput_get_device_handle(struct wlr_input_device *_dev) {
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struct wlr_libinput_input_device *dev = (struct wlr_libinput_input_device *)_dev;
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return dev->handle;
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}
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uint32_t usec_to_msec(uint64_t usec) {
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return (uint32_t)(usec / 1000);
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}
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