Add helper method to get Window from ID

Author: KoBeWi

scene/gui/color_picker.cpp

@@ -1601,18 +1601,12 @@ void ColorPicker::_pick_button_pressed_legacy() {
 		// Add the Texture of each Window to the Image.
 		Vector<DisplayServer::WindowID> wl = ds->get_window_list();
 		// FIXME: sort windows by visibility.
-		for (int index = 0; index < wl.size(); index++) {
-			DisplayServer::WindowID wid = wl[index];
-			if (wid == DisplayServer::INVALID_WINDOW_ID) {
+		for (const DisplayServer::WindowID &window_id : wl) {
+			Window *w = Window::get_from_id(window_id);
+			if (!w) {
 				continue;
 			}
 
-			ObjectID woid = DisplayServer::get_singleton()->window_get_attached_instance_id(wid);
-			if (woid == ObjectID()) {
-				continue;
-			}
-
-			Window *w = Object::cast_to<Window>(ObjectDB::get_instance(woid));
 			Ref<Image> img = w->get_texture()->get_image();
 			if (!img.is_valid() || img->is_empty()) {
 				continue;

scene/main/viewport.cpp

@@ -3771,19 +3771,9 @@ void Viewport::set_embedding_subwindows(bool p_embed) {
 		}
 
 		if (allow_change) {
-			Vector<int> wl = DisplayServer::get_singleton()->get_window_list();
-			for (int index = 0; index < wl.size(); index++) {
-				DisplayServer::WindowID wid = wl[index];
-				if (wid == DisplayServer::INVALID_WINDOW_ID) {
-					continue;
-				}
-
-				ObjectID woid = DisplayServer::get_singleton()->window_get_attached_instance_id(wid);
-				if (woid.is_null()) {
-					continue;
-				}
-
-				Window *w = Object::cast_to<Window>(ObjectDB::get_instance(woid));
+			Vector<DisplayServer::WindowID> wl = DisplayServer::get_singleton()->get_window_list();
+			for (const DisplayServer::WindowID &window_id : wl) {
+				const Window *w = Window::get_from_id(window_id);
 				if (w && is_ancestor_of(w)) {
 					// Prevent change when this viewport has child windows that are displayed as native windows.
 					allow_change = false;

scene/main/window.cpp

@@ -270,6 +270,13 @@ void Window::_validate_property(PropertyInfo &p_property) const {
 
 //
 
+Window *Window::get_from_id(DisplayServer::WindowID p_window_id) {
+	if (p_window_id == DisplayServer::INVALID_WINDOW_ID) {
+		return nullptr;
+	}
+	return Object::cast_to<Window>(ObjectDB::get_instance(DisplayServer::get_singleton()->window_get_attached_instance_id(p_window_id)));
+}
+
 void Window::set_title(const String &p_title) {
 	ERR_MAIN_THREAD_GUARD;
 
@@ -912,7 +919,7 @@ void Window::_make_transient() {
 	if (!is_embedded() && transient_to_focused) {
 		DisplayServer::WindowID focused_window_id = DisplayServer::get_singleton()->get_focused_window();
 		if (focused_window_id != DisplayServer::INVALID_WINDOW_ID) {
-			window = Object::cast_to<Window>(ObjectDB::get_instance(DisplayServer::get_singleton()->window_get_attached_instance_id(focused_window_id)));
+			window = Window::get_from_id(focused_window_id);
 		}
 	}
 

scene/main/window.h

@@ -271,6 +271,7 @@ class Window : public Viewport {
 	};
 
 	static void set_root_layout_direction(int p_root_dir);
+	static Window *get_from_id(DisplayServer::WindowID p_window_id);
 
 	void set_title(const String &p_title);
 	String get_title() const;