From 84a2e3fdb040fc7d23b413b8ff7a818f2e5c5d8e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pa=CC=84vels=20Nadtoc=CC=8Cajevs?=
 <7645683+bruvzg@users.noreply.github.com>
Date: Thu, 20 Feb 2025 08:23:22 +0200
Subject: [PATCH] [IME] Do not redraw and move caret on IME update w/o
 text/position changes.

---
 scene/gui/line_edit.cpp | 10 ++++++++--
 scene/gui/text_edit.cpp | 10 ++++++++--
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/scene/gui/line_edit.cpp b/scene/gui/line_edit.cpp
index b4cad350e21..969e2fd3a35 100644
--- a/scene/gui/line_edit.cpp
+++ b/scene/gui/line_edit.cpp
@@ -1377,8 +1377,14 @@ void LineEdit::_notification(int p_what) {
 
 		case MainLoop::NOTIFICATION_OS_IME_UPDATE: {
 			if (editing) {
-				ime_text = DisplayServer::get_singleton()->ime_get_text();
-				ime_selection = DisplayServer::get_singleton()->ime_get_selection();
+				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) {
+					break;
+				}
+
+				ime_text = new_ime_text;
+				ime_selection = new_ime_selection;
 
 				if (!ime_text.is_empty()) {
 					selection_delete();
diff --git a/scene/gui/text_edit.cpp b/scene/gui/text_edit.cpp
index c2c01326378..ad220231500 100644
--- a/scene/gui/text_edit.cpp
+++ b/scene/gui/text_edit.cpp
@@ -1633,9 +1633,15 @@ void TextEdit::_notification(int p_what) {
 
 		case MainLoop::NOTIFICATION_OS_IME_UPDATE: {
 			if (has_focus()) {
+				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) {
+					break;
+				}
+
 				bool had_ime_text = has_ime_text();
-				ime_text = DisplayServer::get_singleton()->ime_get_text();
-				ime_selection = DisplayServer::get_singleton()->ime_get_selection();
+				ime_text = new_ime_text;
+				ime_selection = new_ime_selection;
 
 				if (!had_ime_text && has_ime_text()) {
 					_cancel_drag_and_drop_text();