From e25a8b04c90681dddc2f1931a4793a0db4ddbbd1 Mon Sep 17 00:00:00 2001
From: Daisuke Tsuji <dim0627@gmail.com>
Date: Sat, 13 Jun 2026 13:09:51 +0900
Subject: [PATCH] fix(input): don't submit on Enter during IME composition

Enter pressed to confirm an IME (Japanese/CJK) conversion candidate was
being treated as 'send', submitting half-converted text and making the
app unusable for IME input. Guard the Enter-to-submit handlers with
isComposing (and keyCode 229 as a fallback) across all prompt inputs:
TaskInput, AgentPane FollowUpInput, Pill, and LogsApp.
---
 app/src/renderer/hub/AgentPane.tsx | 2 +-
 app/src/renderer/hub/TaskInput.tsx | 2 +-
 app/src/renderer/logs/LogsApp.tsx  | 2 +-
 app/src/renderer/pill/Pill.tsx     | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/app/src/renderer/hub/AgentPane.tsx b/app/src/renderer/hub/AgentPane.tsx
index 6f8fed9f..3f90c96a 100644
--- a/app/src/renderer/hub/AgentPane.tsx
+++ b/app/src/renderer/hub/AgentPane.tsx
@@ -578,7 +578,7 @@ function FollowUpInput({ sessionId, onUserInput, autoFocus }: { sessionId: strin
     if (e.key === 'Escape') {
       e.preventDefault();
       textareaRef.current?.blur();
-    } else if (e.key === 'Enter' && !e.shiftKey) {
+    } else if (e.key === 'Enter' && !e.shiftKey && !e.nativeEvent.isComposing && e.keyCode !== 229) {
       e.preventDefault();
       handleSubmit();
     }
diff --git a/app/src/renderer/hub/TaskInput.tsx b/app/src/renderer/hub/TaskInput.tsx
index 870ad548..c1e17526 100644
--- a/app/src/renderer/hub/TaskInput.tsx
+++ b/app/src/renderer/hub/TaskInput.tsx
@@ -203,7 +203,7 @@ export const TaskInput = forwardRef<TaskInputHandle, TaskInputProps>(function Ta
 
   const onKeyDown = useCallback(
     (e: React.KeyboardEvent<HTMLTextAreaElement>) => {
-      if (e.key === 'Enter' && !e.shiftKey) {
+      if (e.key === 'Enter' && !e.shiftKey && !e.nativeEvent.isComposing && e.keyCode !== 229) {
         e.preventDefault();
         submit();
       } else if (e.key === 'Escape') {
diff --git a/app/src/renderer/logs/LogsApp.tsx b/app/src/renderer/logs/LogsApp.tsx
index 5d71b955..2e1d9fa3 100644
--- a/app/src/renderer/logs/LogsApp.tsx
+++ b/app/src/renderer/logs/LogsApp.tsx
@@ -342,7 +342,7 @@ export function LogsApp(): React.ReactElement {
 
   const onInputKeyDown = useCallback(
     (e: React.KeyboardEvent<HTMLTextAreaElement>) => {
-      if (e.key === 'Enter' && !e.shiftKey) {
+      if (e.key === 'Enter' && !e.shiftKey && !e.nativeEvent.isComposing && e.keyCode !== 229) {
         e.preventDefault();
         void sendFollowUp();
       }
diff --git a/app/src/renderer/pill/Pill.tsx b/app/src/renderer/pill/Pill.tsx
index 9606cefa..ae33e09c 100644
--- a/app/src/renderer/pill/Pill.tsx
+++ b/app/src/renderer/pill/Pill.tsx
@@ -423,7 +423,7 @@ export function Pill(): React.ReactElement {
           setAttachments([]);
           setAttachError(null);
         }
-      } else if (e.key === 'Enter' && !e.shiftKey) {
+      } else if (e.key === 'Enter' && !e.shiftKey && !e.nativeEvent.isComposing && e.keyCode !== 229) {
         e.preventDefault();
         submit();
       }