Allow connecting signals to existing methods without opening the script editor

doc/classes/EditorSettings.xml

@@ -1014,6 +1014,9 @@
 		<member name="text_editor/behavior/navigation/move_caret_on_right_click" type="bool" setter="" getter="">
 			If [code]true[/code], the caret will be moved when right-clicking somewhere in the script editor (like when left-clicking or middle-clicking). If [code]false[/code], the caret will only be moved when left-clicking or middle-clicking somewhere.
 		</member>
+		<member name="text_editor/behavior/navigation/open_script_when_connecting_signal_to_existing_method" type="bool" setter="" getter="">
+			If [code]true[/code], opens the script editor when connecting a signal to an existing script method from the Node dock.
+		</member>
 		<member name="text_editor/behavior/navigation/scroll_past_end_of_file" type="bool" setter="" getter="">
 			If [code]true[/code], allows scrolling past the end of the file.
 		</member>

editor/connections_dialog.cpp

@@ -906,25 +906,34 @@ void ConnectionsDock::_make_or_edit_connection() {
 	bool b_oneshot = connect_dialog->get_one_shot();
 	cd.flags = CONNECT_PERSIST | (b_deferred ? CONNECT_DEFERRED : 0) | (b_oneshot ? CONNECT_ONE_SHOT : 0);
 
-	// Conditions to add function: must have a script and must not have the method already
-	// (in the class, the script itself, or inherited).
-	bool add_script_function = false;
+	// If the function is found in target's own script, check the editor setting
+	// to determine if the script should be opened.
+	// If the function is found in an inherited class or script no need to do anything
+	// except making a connection.
+	bool add_script_function_request = false;
 	Ref<Script> scr = target->get_script();
-	if (!scr.is_null() && !ClassDB::has_method(target->get_class(), cd.method)) {
-		// There is a chance that the method is inherited from another script.
-		bool found_inherited_function = false;
-		Ref<Script> inherited_scr = scr->get_base_script();
-		while (!inherited_scr.is_null()) {
-			int line = inherited_scr->get_language()->find_function(cd.method, inherited_scr->get_source_code());
-			if (line != -1) {
-				found_inherited_function = true;
-				break;
+
+	if (scr.is_valid() && !ClassDB::has_method(target->get_class(), cd.method)) {
+		// Check in target's own script.
+		int line = scr->get_language()->find_function(cd.method, scr->get_source_code());
+		if (line != -1) {
+			add_script_function_request = EDITOR_GET("text_editor/behavior/navigation/open_script_when_connecting_signal_to_existing_method");
+		} else {
+			// There is a chance that the method is inherited from another script.
+			bool found_inherited_function = false;
+			Ref<Script> inherited_scr = scr->get_base_script();
+			while (inherited_scr.is_valid()) {
+				int inherited_line = inherited_scr->get_language()->find_function(cd.method, inherited_scr->get_source_code());
+				if (inherited_line != -1) {
+					found_inherited_function = true;
+					break;
+				}
+
+				inherited_scr = inherited_scr->get_base_script();
 			}
 
-			inherited_scr = inherited_scr->get_base_script();
+			add_script_function_request = !found_inherited_function;
 		}
-
-		add_script_function = !found_inherited_function;
 	}
 
 	if (connect_dialog->is_editing()) {
@@ -934,7 +943,7 @@ void ConnectionsDock::_make_or_edit_connection() {
 		_connect(cd);
 	}
 
-	if (add_script_function) {
+	if (add_script_function_request) {
 		PackedStringArray script_function_args = connect_dialog->get_signal_args();
 		script_function_args.resize(script_function_args.size() - cd.unbinds);
 		for (int i = 0; i < cd.binds.size(); i++) {

editor/editor_settings.cpp

@@ -626,6 +626,7 @@ void EditorSettings::_load_defaults(Ref<ConfigFile> p_extra_config) {
 	EDITOR_SETTING(Variant::INT, PROPERTY_HINT_RANGE, "text_editor/behavior/navigation/v_scroll_speed", 80, "1,10000,1")
 	_initial_set("text_editor/behavior/navigation/drag_and_drop_selection", true);
 	_initial_set("text_editor/behavior/navigation/stay_in_script_editor_on_node_selected", true);
+	_initial_set("text_editor/behavior/navigation/open_script_when_connecting_signal_to_existing_method", true);
 
 	// Behavior: Indent
 	EDITOR_SETTING(Variant::INT, PROPERTY_HINT_ENUM, "text_editor/behavior/indent/type", 0, "Tabs,Spaces")