AMEND

examples/pointer-constraints.c

@@ -0,0 +1,80 @@
+#include <wayland-client.h>
+#include "wlr-layer-shell-unstable-v1-client-protocol.h"
+
+struct wl_compositor *compositor;
+struct wl_pointer *pointer;
+struct wl_seat *seat;
+struct wl_shell *shell;
+struct zwp_pointer_constraints_v1 *pointer_constraints;
+
+static void registry_global(void *data,
+		struct wl_registry *registry, uint32_t name,
+		const char *interface, uint32_t version) {
+	if (strcmp(interface, wl_compositor_interface.name) == 0) {
+		compositor = wl_registry_bind(registry, name,
+			&wl_compositor_interface, min(version, 4));
+	} else if (strcmp(interface, wl_shell_interface.name) == 0) {
+		shell = wl_registry_bind(registry, name,
+			&wl_shell_interface, min(version, 1));
+	} else if (strcmp(interface, wl_seat_interface.name) == 0) {
+		seat = wl_registry_bind(registry, name,
+			&wl_seat_interface, min(version, 2));
+		pointer = wl_seat_get_pointer(seat);
+		wl_pointer_add_listener(pointer, &pointer_listener,
+			NULL);
+	} else if (strcmp(interface, zwp_pointer_constraints_v1_interface.name) == 0) {
+		pointer_constraints = wl_registry_bind(registry, name,
+			&zwp_pointer_constraints_v1_interface, min(version, 1));
+	}
+}
+
+static void registry_global_remove(void *a,
+		struct wl_registry *b, uint32_t c) {}
+
+static const struct wl_registry_listener registry_listener = {
+	.global = registry_global,
+	.global_remove = registry_global_remove
+};
+
+int main() {
+	struct wl_buffer *buffer;
+	struct wl_shm_pool *pool;
+	struct wl_shell_surface *surface;
+
+	struct wl_registry *registry;
+
+	struct wl_display *display = wl_display_connect(NULL);
+
+	registry = wl_display_get_registry(display);
+	wl_registry_add_listener(registry, &registry_listener,
+		NULL);
+	wl_display_roundtrip(display);
+	wl_registry_destroy(registry);
+
+    struct wl_surface* surface = wl_compositor_create_surface(compositor);
+	struct wl_shell_surface* shell_surface = wl_shell_get_shell_surface(shell, surface);
+
+	struct wl_region *region = wl_compositor_create_region(compositor);
+	wl_region_add(region, 64, 64, 64, 64);
+
+	struct zwp_confined_pointer_v1 *confined_pointer = zwp_pointer_constraints_v1_confine_pointer(pointer_constraints,
+		wl_shell_surface_get_user_data(surface),
+		pointer,
+		region,
+		ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT
+	);
+
+	struct wl_region *region2 = wl_compositor_create_region(compositor);
+	wl_region_add(region2, 128, 64, 64, 64);
+	zwp_confined_pointer_v1_set_region(confined_pointer, region2);
+
+	wl_surface_commit(wl_shell_surface_get_user_data(surface));
+
+	while (true) {
+		if (wl_display_dispatch(display) < 0) {
+			return 1;
+		}
+	}
+
+	return 0;
+}