Merge pull request #117648 from bruvzg/te_ro

[TextEdit] Ignore IME updates and Alt sequences when control is read-only.

scene/gui/text_edit.cpp

@@ -1979,7 +1979,7 @@ void TextEdit::_notification(int p_what) {
 		} break;
 
 		case MainLoop::NOTIFICATION_OS_IME_UPDATE: {
-			if (has_focus()) {
+			if (has_focus() && editable) {
 				const String &new_ime_text = DisplayServer::get_singleton()->ime_get_text();
 				const Vector2i &new_ime_selection = DisplayServer::get_singleton()->ime_get_selection();
 				if (ime_text == new_ime_text && ime_selection == new_ime_selection) {
@@ -2064,6 +2064,9 @@ void TextEdit::unhandled_key_input(const Ref<InputEvent> &p_event) {
 }
 
 bool TextEdit::alt_input(const Ref<InputEvent> &p_gui_input) {
+	if (!editable) {
+		return false;
+	}
 	Ref<InputEventKey> k = p_gui_input;
 	if (k.is_valid()) {
 		// Start Unicode Alt input (hold).
@@ -3441,6 +3444,10 @@ void TextEdit::_update_ime_window_position() {
 	if (wid == DisplayServerEnums::INVALID_WINDOW_ID || !DisplayServer::get_singleton()->has_feature(DisplayServerEnums::FEATURE_IME)) {
 		return;
 	}
+	if (!editable) {
+		DisplayServer::get_singleton()->window_set_ime_active(false, wid);
+		return;
+	}
 	DisplayServer::get_singleton()->window_set_ime_active(true, wid);
 	Point2 pos = get_global_position() + get_caret_draw_pos();
 	if (get_window()->get_embedder()) {