From fb9a1641116b816ad55127e8767f2f5ea095b733 Mon Sep 17 00:00:00 2001
From: Qian23333 <119576779+Qian23333@users.noreply.github.com>
Date: Sun, 15 Jun 2025 09:47:56 +0800
Subject: [PATCH] feat: disable text input when window gains focus

---
 app/streaming/input/input.cpp | 9 +++++++++
 app/streaming/input/input.h   | 2 ++
 app/streaming/session.cpp     | 2 +-
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/app/streaming/input/input.cpp b/app/streaming/input/input.cpp
index 7abe2c5d..c36c6718 100644
--- a/app/streaming/input/input.cpp
+++ b/app/streaming/input/input.cpp
@@ -301,6 +301,15 @@ void SdlInputHandler::notifyFocusLost()
     // Raise all keys that are currently pressed. If we don't do this, certain keys
     // used in shortcuts that cause focus loss (such as Alt+Tab) may get stuck down.
     raiseAllKeys();
+
+    // Re-enable text input when window loses focus
+    SDL_StartTextInput();
+}
+
+void SdlInputHandler::notifyFocusGained()
+{
+    // Disable text input when window gains focus to prevent IME popup interference
+    SDL_StopTextInput();
 }
 
 bool SdlInputHandler::isCaptureActive()
diff --git a/app/streaming/input/input.h b/app/streaming/input/input.h
index f2cae85f..20bbbc33 100644
--- a/app/streaming/input/input.h
+++ b/app/streaming/input/input.h
@@ -138,6 +138,8 @@ public:
 
     void notifyFocusLost();
 
+    void notifyFocusGained();
+
     bool isCaptureActive();
 
     bool isSystemKeyCaptureActive();
diff --git a/app/streaming/session.cpp b/app/streaming/session.cpp
index 5c0052af..fc1413d9 100644
--- a/app/streaming/session.cpp
+++ b/app/streaming/session.cpp
@@ -2108,6 +2108,7 @@ void Session::execInternal()
                 if (m_Preferences->muteOnFocusLoss) {
                     m_AudioMuted = false;
                 }
+                m_InputHandler->notifyFocusGained();
                 break;
             case SDL_WINDOWEVENT_LEAVE:
                 m_InputHandler->notifyMouseLeave();
@@ -2420,4 +2421,3 @@ DispatchDeferredCleanup:
     // reference.
     QThreadPool::globalInstance()->start(new DeferredSessionCleanupTask(this));
 }
-