From f4e2ec8fa93b0f7f8f8fe326aacafb9c2d0d8a72 Mon Sep 17 00:00:00 2001
From: IoI_xD <alphaproject217@gmail.com>
Date: Tue, 24 Mar 2026 23:44:30 -0700
Subject: [PATCH] h

---
 include/Mw/LowLevel/Wayland.h |  4 ++++
 pl/rules.pl                   |  1 +
 src/backend/wayland.c         | 25 +++++++++++++++++--------
 3 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/include/Mw/LowLevel/Wayland.h b/include/Mw/LowLevel/Wayland.h
index 95e84eb..bc8ce1f 100644
--- a/include/Mw/LowLevel/Wayland.h
+++ b/include/Mw/LowLevel/Wayland.h
@@ -285,6 +285,7 @@ MwInline int wayland_load_funcs() {
 #include "Wayland/xdg-decoration-client-protocol.h"
 #include "Wayland/cursor-shape-client-protocol.h"
 #include "Wayland/primary-selection-client-protocol.h"
+#include "Wayland/pointer-constraints-client-protocol.h"
 #include "Wayland/xdg-toplevel-icon-client-protocol.h"
 #endif
 
@@ -418,6 +419,9 @@ struct _MwLLWayland {
 
 	struct wp_viewport* vp;
 
+	struct zwp_pointer_constraints_v1* pointer_constraints;
+	struct zwp_locked_pointer_v1*	   locked_pointer;
+
 	/* clipboard related stuff.
 	 * Note that unlike most interfaces, we don't keep zwp_primary_selection stuff in a wayland_protocol_t because we use wl_data_device as a fallback and want to have it share memory space.*/
 
diff --git a/pl/rules.pl b/pl/rules.pl
index 81a1ece..5433a17 100644
--- a/pl/rules.pl
+++ b/pl/rules.pl
@@ -42,6 +42,7 @@ if (grep(/^wayland$/, @backends)) {
     scan_wayland_protocol("staging",  "cursor-shape",      "-v1");
     scan_wayland_protocol("unstable", "xdg-decoration",    "-unstable-v1");
     scan_wayland_protocol("unstable", "primary-selection", "-unstable-v1");
+    scan_wayland_protocol("unstable", "pointer-constraints", "-unstable-v1");
 
     $gl_libs = "-lGL -lGLU";
 }
diff --git a/src/backend/wayland.c b/src/backend/wayland.c
index 5e4e767..4d7f72a 100644
--- a/src/backend/wayland.c
+++ b/src/backend/wayland.c
@@ -5,11 +5,6 @@
 
 #include "../../external/stb_ds.h"
 
-/* TODO:
- * - MwLLMakePopupImpl
- * - MwLLShowImpl
- */
-
 /* TODO: find out what FreeBSD and such wants us to include */
 #ifdef __FreeBSD__
 /* XXX: Untested (nishi) */
@@ -450,6 +445,17 @@ static void zwp_primary_selection_device_manager_v1_interface_destroy(struct _Mw
 	(void)data;
 }
 
+/* zwp_primary_selection_device_manager_v1 setup function */
+static wayland_protocol_t* zwp_pointer_constraints_v1_setup(MwU32 name, struct _MwLLWayland* wayland) {
+	wayland->pointer_constraints = wl_registry_bind(wayland->registry, name, &zwp_pointer_constraints_v1_interface, 1);
+	return NULL;
+}
+
+static void zwp_pointer_constraints_v1_interface_destroy(struct _MwLLWayland* wayland, wayland_protocol_t* data) {
+	(void)wayland;
+	(void)data;
+}
+
 static struct wl_surface* curSurface;
 
 /* `wl_pointer.enter` callback */
@@ -1329,6 +1335,7 @@ static void setup_callbacks(struct _MwLLWayland* wayland) {
 	WL_INTERFACE(wl_output);
 	WL_INTERFACE(wl_data_device_manager);
 	WL_INTERFACE(zwp_primary_selection_device_manager_v1);
+	WL_INTERFACE(zwp_pointer_constraints_v1);
 	if(wayland->type == MWLL_WAYLAND_TOPLEVEL) {
 		WL_INTERFACE(xdg_wm_base);
 		WL_INTERFACE(wp_viewporter);
@@ -2275,9 +2282,11 @@ static void MwLLFocusImpl(MwLL handle) {
 }
 
 static void MwLLGrabPointerImpl(MwLL handle, int toggle) {
-	(void)handle;
-	(void)toggle;
-	printf("[WARNING] MwLLGrabPointer not supported on Wayland\n");
+	if(handle->wayland.pointer_constraints) {
+		handle->wayland.locked_pointer = zwp_pointer_constraints_v1_lock_pointer(handle->wayland.pointer_constraints, handle->wayland.framebuffer.surface, handle->wayland.pointer, handle->wayland.region, ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT);
+	} else {
+		printf("[WARNING] MwLLGrabPointer not supported in Wayland session, zwp_pointer_constraints_v1 required.\n");
+	}
 }
 
 static void MwLLSetClipboardImpl(MwLL handle, const char* text) {