Merge pull request #53207 from o01eg/virtual-translation-3.x

Author: akien-mga

core/translation.cpp

@@ -871,6 +871,10 @@ void Translation::add_message(const StringName &p_src_text, const StringName &p_
 	translation_map[p_src_text] = p_xlated_text;
 }
 StringName Translation::get_message(const StringName &p_src_text) const {
+	if (get_script_instance()) {
+		return get_script_instance()->call("_get_message", p_src_text);
+	}
+
 	const Map<StringName, StringName>::Element *E = translation_map.find(p_src_text);
 	if (!E) {
 		return StringName();
@@ -904,6 +908,8 @@ void Translation::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_set_messages"), &Translation::_set_messages);
 	ClassDB::bind_method(D_METHOD("_get_messages"), &Translation::_get_messages);
 
+	BIND_VMETHOD(MethodInfo(Variant::STRING, "_get_message", PropertyInfo(Variant::STRING, "src_message")));
+
 	ADD_PROPERTY(PropertyInfo(Variant::POOL_STRING_ARRAY, "messages", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_messages", "_get_messages");
 	ADD_PROPERTY(PropertyInfo(Variant::STRING, "locale"), "set_locale", "get_locale");
 }

doc/classes/Translation.xml

@@ -11,6 +11,13 @@
 		<link>https://docs.godotengine.org/en/3.4/tutorials/i18n/locales.html</link>
 	</tutorials>
 	<methods>
+		<method name="_get_message" qualifiers="virtual">
+			<return type="String" />
+			<argument index="0" name="src_message" type="String" />
+			<description>
+				Virtual method to override [method get_message].
+			</description>
+		</method>
 		<method name="add_message">
 			<return type="void" />
 			<argument index="0" name="src_message" type="String" />