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#include "wlstate.h"
#include <poll.h>
#include <string.h>
#include <wayland-client-protocol.h>
#include "utils.h"
#include "xdg-shell.h"
#define WAYC_VERSION 1
static void wayc_xdg_wm_base_pong(void* data, struct xdg_wm_base* wm_base,
u32 serial) {
(void)data;
xdg_wm_base_pong(wm_base, serial);
}
static struct xdg_wm_base_listener WAYC_XDG_WM_BASE_LISTENER = {
wayc_xdg_wm_base_pong,
};
static void wayc_registry_add(void* data, struct wl_registry* registry,
u32 name, const char* interface, u32 version) {
(void)version;
wayc_notnull(data);
wayc_notnull(registry);
wayc_notnull(interface);
struct wlstate_s* state = (struct wlstate_s*)data;
if (!strcmp(interface, wl_compositor_interface.name)) {
wl_compositor_t compositor = (wl_compositor_t)wl_registry_bind(
registry, name, &wl_compositor_interface, WAYC_VERSION);
wayc_notnull(compositor);
state->compositor = compositor;
}
if (!strcmp(interface, xdg_wm_base_interface.name)) {
xdg_wm_base_t wm_base = (xdg_wm_base_t)wl_registry_bind(
registry, name, &xdg_wm_base_interface, WAYC_VERSION);
wayc_notnull(wm_base);
state->wm_base = wm_base;
xdg_wm_base_add_listener(wm_base, &WAYC_XDG_WM_BASE_LISTENER, state);
}
}
static void wayc_registry_remove(void* data, struct wl_registry* registry,
u32 name) {
wayc_notnull(data);
wayc_notnull(registry);
wayc_panic("Registry global removed: name=%u", name);
}
static struct wl_registry_listener WAYC_REGISTRY_LISTENER = {
wayc_registry_add,
wayc_registry_remove,
};
enum wlstate_error_e wayc_wlstate_init(struct wlstate_s* state) {
wayc_notnull(state);
memset(state, 0, sizeof(*state));
wl_display_t display = wl_display_connect(NULL);
if (display == NULL) return WLSTATE_ERROR_CONNECTION;
i32 eventfd = wl_display_get_fd(display);
if (eventfd == -1) {
wl_display_disconnect(display);
return WLSTATE_ERROR_CONNECTION;
}
wl_registry_t registry = wl_display_get_registry(display);
if (registry == NULL) {
wl_display_disconnect(display);
return WLSTATE_ERROR_REGISTRY;
}
wl_registry_add_listener(registry, &WAYC_REGISTRY_LISTENER, state);
wl_display_roundtrip(display);
state->display = display;
state->registry = registry;
state->eventfd = eventfd;
return WLSTATE_ERROR_NONE;
}
void wayc_wlstate_deinit(struct wlstate_s* state) {
wayc_notnull(state);
if (state->display == nullptr) return;
wl_display_disconnect(state->display);
state->display = nullptr;
state->registry = nullptr;
state->compositor = nullptr;
state->wm_base = nullptr;
state->eventfd = -1;
}
void wayc_wlstate_update(struct wlstate_s* state) {
wayc_notnull(state);
struct pollfd pfd = {
state->eventfd,
POLLIN,
0,
};
i32 rc = poll(&pfd, 1, 0);
if (rc == -1) wayc_panic("Failed to poll Wayland eventfd");
if (!(pfd.revents & POLLIN)) return;
rc = wl_display_dispatch(state->display);
if (rc == -1) wayc_panic("Failed to dispatch Wayland events");
}
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