From 415042ac89d1c9c7f8ca97fa83fc1165350a01da Mon Sep 17 00:00:00 2001
From: Markus Sauermann <6299227+Sauermann@users.noreply.github.com>
Date: Tue, 15 Feb 2022 22:14:39 +0100
Subject: Connect notifications from Container to Viewport mouse enter+exit

---
 scene/gui/subviewport_container.cpp | 18 ++++++++++++++++++
 scene/gui/subviewport_container.h   |  1 +
 scene/main/node.cpp                 |  3 +++
 scene/main/node.h                   |  2 ++
 scene/main/viewport.cpp             |  4 ++--
 scene/main/window.cpp               |  2 ++
 6 files changed, 28 insertions(+), 2 deletions(-)

(limited to 'scene')

diff --git a/scene/gui/subviewport_container.cpp b/scene/gui/subviewport_container.cpp
index ce78c286f5..c66e145bc4 100644
--- a/scene/gui/subviewport_container.cpp
+++ b/scene/gui/subviewport_container.cpp
@@ -148,6 +148,24 @@ void SubViewportContainer::_notification(int p_what) {
 				}
 			}
 		} break;
+
+		case NOTIFICATION_MOUSE_ENTER: {
+			_notify_viewports(NOTIFICATION_VP_MOUSE_ENTER);
+		} break;
+
+		case NOTIFICATION_MOUSE_EXIT: {
+			_notify_viewports(NOTIFICATION_VP_MOUSE_EXIT);
+		} break;
+	}
+}
+
+void SubViewportContainer::_notify_viewports(int p_notification) {
+	for (int i = 0; i < get_child_count(); i++) {
+		SubViewport *c = Object::cast_to<SubViewport>(get_child(i));
+		if (!c) {
+			continue;
+		}
+		c->notification(p_notification);
 	}
 }
 
diff --git a/scene/gui/subviewport_container.h b/scene/gui/subviewport_container.h
index 3138a6144c..f52f01e4e2 100644
--- a/scene/gui/subviewport_container.h
+++ b/scene/gui/subviewport_container.h
@@ -38,6 +38,7 @@ class SubViewportContainer : public Container {
 
 	bool stretch = false;
 	int shrink = 1;
+	void _notify_viewports(int p_notification);
 
 protected:
 	void _notification(int p_what);
diff --git a/scene/main/node.cpp b/scene/main/node.cpp
index 42a2e41a08..8b557f92ef 100644
--- a/scene/main/node.cpp
+++ b/scene/main/node.cpp
@@ -2845,6 +2845,9 @@ void Node::_bind_methods() {
 	BIND_CONSTANT(NOTIFICATION_WM_CLOSE_REQUEST);
 	BIND_CONSTANT(NOTIFICATION_WM_GO_BACK_REQUEST);
 	BIND_CONSTANT(NOTIFICATION_WM_SIZE_CHANGED);
+	BIND_CONSTANT(NOTIFICATION_WM_DPI_CHANGE);
+	BIND_CONSTANT(NOTIFICATION_VP_MOUSE_ENTER);
+	BIND_CONSTANT(NOTIFICATION_VP_MOUSE_EXIT);
 	BIND_CONSTANT(NOTIFICATION_OS_MEMORY_WARNING);
 	BIND_CONSTANT(NOTIFICATION_TRANSLATION_CHANGED);
 	BIND_CONSTANT(NOTIFICATION_WM_ABOUT);
diff --git a/scene/main/node.h b/scene/main/node.h
index f2dcdf4b43..8b4599c79e 100644
--- a/scene/main/node.h
+++ b/scene/main/node.h
@@ -268,6 +268,8 @@ public:
 		NOTIFICATION_WM_GO_BACK_REQUEST = 1007,
 		NOTIFICATION_WM_SIZE_CHANGED = 1008,
 		NOTIFICATION_WM_DPI_CHANGE = 1009,
+		NOTIFICATION_VP_MOUSE_ENTER = 1010,
+		NOTIFICATION_VP_MOUSE_EXIT = 1011,
 
 		NOTIFICATION_OS_MEMORY_WARNING = MainLoop::NOTIFICATION_OS_MEMORY_WARNING,
 		NOTIFICATION_TRANSLATION_CHANGED = MainLoop::NOTIFICATION_TRANSLATION_CHANGED,
diff --git a/scene/main/viewport.cpp b/scene/main/viewport.cpp
index 2831e76fba..691482808a 100644
--- a/scene/main/viewport.cpp
+++ b/scene/main/viewport.cpp
@@ -496,11 +496,11 @@ void Viewport::_notification(int p_what) {
 #endif // _3D_DISABLED
 		} break;
 
-		case NOTIFICATION_WM_MOUSE_ENTER: {
+		case NOTIFICATION_VP_MOUSE_ENTER: {
 			gui.mouse_in_window = true;
 		} break;
 
-		case NOTIFICATION_WM_MOUSE_EXIT: {
+		case NOTIFICATION_VP_MOUSE_EXIT: {
 			gui.mouse_in_window = false;
 			_drop_physics_mouseover();
 			_drop_mouse_over();
diff --git a/scene/main/window.cpp b/scene/main/window.cpp
index e7a575f40a..0ce556d36c 100644
--- a/scene/main/window.cpp
+++ b/scene/main/window.cpp
@@ -340,9 +340,11 @@ void Window::_event_callback(DisplayServer::WindowEvent p_event) {
 		case DisplayServer::WINDOW_EVENT_MOUSE_ENTER: {
 			_propagate_window_notification(this, NOTIFICATION_WM_MOUSE_ENTER);
 			emit_signal(SNAME("mouse_entered"));
+			notification(NOTIFICATION_VP_MOUSE_ENTER);
 			DisplayServer::get_singleton()->cursor_set_shape(DisplayServer::CURSOR_ARROW); //restore cursor shape
 		} break;
 		case DisplayServer::WINDOW_EVENT_MOUSE_EXIT: {
+			notification(NOTIFICATION_VP_MOUSE_EXIT);
 			_propagate_window_notification(this, NOTIFICATION_WM_MOUSE_EXIT);
 			emit_signal(SNAME("mouse_exited"));
 		} break;
-- 
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