Create onready variables when dropping nodes and holding Ctrl

core/ustring.cpp

@@ -3377,6 +3377,31 @@ bool String::is_abs_path() const {
 	}
 }
 
+static _FORCE_INLINE_ bool _is_valid_identifier_bit(int p_index, CharType p_char) {
+	if (p_index == 0 && p_char >= '0' && p_char <= '9') {
+		return false; // No start with number plz.
+	}
+	return (p_char >= '0' && p_char <= '9') || (p_char >= 'a' && p_char <= 'z') || (p_char >= 'A' && p_char <= 'Z') || p_char == '_';
+}
+
+String String::validate_identifier() const {
+	if (empty()) {
+		return "_"; // Empty string is not a valid identifier.
+	}
+
+	String result = *this;
+	int len = result.length();
+	wchar_t *buffer = result.ptrw();
+
+	for (int i = 0; i < len; i++) {
+		if (!_is_valid_identifier_bit(i, buffer[i])) {
+			buffer[i] = '_';
+		}
+	}
+
+	return result;
+}
+
 bool String::is_valid_identifier() const {
 	int len = length();
 
@@ -3387,15 +3412,7 @@ bool String::is_valid_identifier() const {
 	const wchar_t *str = &operator[](0);
 
 	for (int i = 0; i < len; i++) {
-		if (i == 0) {
+		if (!_is_valid_identifier_bit(i, str[i])) {
-			if (str[0] >= '0' && str[0] <= '9') {
-				return false; // no start with number plz
-			}
-		}
-
-		bool valid_char = (str[i] >= '0' && str[i] <= '9') || (str[i] >= 'a' && str[i] <= 'z') || (str[i] >= 'A' && str[i] <= 'Z') || str[i] == '_';
-
-		if (!valid_char) {
 			return false;
 		}
 	}

core/ustring.h

@@ -349,6 +349,7 @@ public:
 	// node functions
 	static const String invalid_node_name_characters;
 	String validate_node_name() const;
+	String validate_identifier() const;
 
 	bool is_valid_identifier() const;
 	bool is_valid_integer() const;

editor/plugins/script_text_editor.cpp

@@ -1497,6 +1497,8 @@ static Node *_find_script_node(Node *p_edited_scene, Node *p_current_node, const
 }
 
 void ScriptTextEditor::drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) {
+	const String quote_style = EDITOR_GET("text_editor/completion/use_single_quotes") ? "'" : "\"";
+
 	Dictionary d = p_data;
 
 	TextEdit *te = code_editor->get_text_edit();
@@ -1520,7 +1522,6 @@ void ScriptTextEditor::drop_data_fw(const Point2 &p_point, const Variant &p_data
 	}
 
 	if (d.has("type") && (String(d["type"]) == "files" || String(d["type"]) == "files_and_dirs")) {
-		const String quote_style = EDITOR_GET("text_editor/completion/use_single_quotes") ? "'" : "\"";
 		Array files = d["files"];
 
 		String text_to_drop;
@@ -1552,6 +1553,33 @@ void ScriptTextEditor::drop_data_fw(const Point2 &p_point, const Variant &p_data
 
 		Array nodes = d["nodes"];
 		String text_to_drop;
+
+		if (Input::get_singleton()->is_key_pressed(KEY_CONTROL)) {
+			bool use_type = EDITOR_GET("text_editor/completion/add_type_hints");
+			for (int i = 0; i < nodes.size(); i++) {
+				NodePath np = nodes[i];
+				Node *node = get_node(np);
+				if (!node) {
+					continue;
+				}
+
+				String path = sn->get_path_to(node);
+				Vector<String> segments = path.split("/");
+				for (int j = 0; j < segments.size(); j++) {
+					if (!segments[j].is_valid_identifier()) {
+						path = path.c_escape().quote(quote_style);
+						break;
+					}
+				}
+
+				String variable_name = String(node->get_name()).camelcase_to_underscore(true).validate_identifier();
+				if (use_type) {
+					text_to_drop += vformat("onready var %s: %s = $%s\n", variable_name, node->get_class_name(), path);
+				} else {
+					text_to_drop += vformat("onready var %s = $%s\n", variable_name, path);
+				}
+			}
+		} else {
 			for (int i = 0; i < nodes.size(); i++) {
 				if (i > 0) {
 					text_to_drop += ",";
@@ -1564,7 +1592,8 @@ void ScriptTextEditor::drop_data_fw(const Point2 &p_point, const Variant &p_data
 				}
 
 				String path = sn->get_path_to(node);
-			text_to_drop += "\"" + path.c_escape() + "\"";
+				text_to_drop += path.c_escape().quote(quote_style);
+			}
 		}
 
 		te->cursor_set_line(row);
@@ -1573,7 +1602,6 @@ void ScriptTextEditor::drop_data_fw(const Point2 &p_point, const Variant &p_data
 	}
 
 	if (d.has("type") && String(d["type"]) == "obj_property") {
-		const String quote_style = EDITOR_GET("text_editor/completion/use_single_quotes") ? "'" : "\"";
 		const String text_to_drop = String(d["property"]).c_escape().quote(quote_style);
 
 		te->cursor_set_line(row);