1 files changed, 109 insertions, 0 deletions
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..154afef
--- /dev/null
+++ b/main.c
@@ -0,0 +1,109 @@
+#define _POSIX_C_SOURCE 200112L
+#include <wayland-client.h>
+#include "xdg-shell-client-protocol.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+struct wl_display *display = NULL;
+struct wl_registry *registry = NULL;
+struct wl_compositor *compositor = NULL;
+struct xdg_wm_base *wm_base = NULL;
+struct wl_surface *surface = NULL;
+struct xdg_surface *xdg_surface = NULL;
+struct xdg_toplevel *xdg_toplevel = NULL;
+
+static void xdg_wm_base_ping(void *data, struct xdg_wm_base *xdg_wm_base, uint32_t serial)
+{
+	xdg_wm_base_pong(xdg_wm_base, serial);
+}
+
+static const struct xdg_wm_base_listener wm_base_listener = {
+	.ping = xdg_wm_base_ping,
+};
+
+static void xdg_surface_configure(void *data, struct xdg_surface *xdg_surface, uint32_t serial)
+{
+	xdg_surface_ack_configure(xdg_surface, serial);
+}
+
+static const struct xdg_surface_listener xdg_surface_listener = {
+	.configure = xdg_surface_configure,
+};
+
+static void xdg_toplevel_configure(void *data, struct xdg_toplevel *xdg_toplevel,
+	int32_t width, int32_t height, struct wl_array *states)
+{
+	/* just exist */
+}
+
+static void xdg_toplevel_close(void *data, struct xdg_toplevel *xdg_toplevel)
+{
+	printf("close requested\n");
+	exit(0);
+}
+
+static const struct xdg_toplevel_listener xdg_toplevel_listener = {
+	.configure = xdg_toplevel_configure,
+	.close = xdg_toplevel_close,
+};
+
+static void registry_handle_global(void *data, struct wl_registry *reg, uint32_t id,
+	const char *interface, uint32_t version)
+{
+	if (strcmp(interface, wl_compositor_interface.name) == 0) {
+		compositor = wl_registry_bind(reg, id, &wl_compositor_interface, 4);
+	} else if (strcmp(interface, xdg_wm_base_interface.name) == 0) {
+		wm_base = wl_registry_bind(reg, id, &xdg_wm_base_interface, 1);
+		xdg_wm_base_add_listener(wm_base, &wm_base_listener, NULL);
+	}
+}
+
+static void registry_handle_global_remove(void *data, struct wl_registry *reg, uint32_t id)
+{
+	/* ignore */
+}
+
+static const struct wl_registry_listener registry_listener = {
+	.global = registry_handle_global,
+	.global_remove = registry_handle_global_remove,
+};
+
+int main(void)
+{
+	display = wl_display_connect(NULL);
+	if (!display) {
+		fprintf(stderr, "can't connect\n");
+		return 1;
+	}
+
+	registry = wl_display_get_registry(display);
+	wl_registry_add_listener(registry, &registry_listener, NULL);
+	wl_display_roundtrip(display);
+
+	if (!compositor || !wm_base) {
+		fprintf(stderr, "missing compositor or xdg_wm_base\n");
+		return 1;
+	}
+
+	surface = wl_compositor_create_surface(compositor);
+	xdg_surface = xdg_wm_base_get_xdg_surface(wm_base, surface);
+	xdg_surface_add_listener(xdg_surface, &xdg_surface_listener, NULL);
+
+	xdg_toplevel = xdg_surface_get_toplevel(xdg_surface);
+	xdg_toplevel_add_listener(xdg_toplevel, &xdg_toplevel_listener, NULL);
+	xdg_toplevel_set_title(xdg_toplevel, "wayland window");
+
+	wl_surface_commit(surface);
+	wl_display_roundtrip(display);
+
+	printf("window open, running...\n");
+
+	while (wl_display_dispatch(display) != -1) {
+		/* events handled by callbacks */
+	}
+
+	wl_display_disconnect(display);
+	return 0;
+}