From 22f616ab2aa6e452aefc56bc0dcdafae576fe681 Mon Sep 17 00:00:00 2001
From: MT-Mint <798521692@qq.com>
Date: Sat, 11 Apr 2026 14:38:53 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20ctrl+enter=E9=94=AE=E4=B8=8D=E8=83=BD?=
 =?UTF-8?q?=E6=8D=A2=E8=A1=8C=E7=9A=84=E9=97=AE=E9=A2=98?=
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---
 .../components/ai-elements/prompt-input.tsx   | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/frontend/src/components/ai-elements/prompt-input.tsx b/frontend/src/components/ai-elements/prompt-input.tsx
index 682b804e..53491204 100644
--- a/frontend/src/components/ai-elements/prompt-input.tsx
+++ b/frontend/src/components/ai-elements/prompt-input.tsx
@@ -883,7 +883,32 @@ export const PromptInputTextarea = ({
       if (!submitOnEnter) {
         return;
       }
+
       if (e.shiftKey || e.ctrlKey || e.metaKey) {
+        // Keep newline behavior explicit for modified-Enter combos.
+        // This avoids accidental submit shortcuts swallowing Ctrl/Cmd+Enter.
+        if (e.ctrlKey || e.metaKey) {
+          e.preventDefault();
+          const target = e.currentTarget;
+          const start = target.selectionStart ?? target.value.length;
+          const end = target.selectionEnd ?? target.value.length;
+          const nextValue =
+            target.value.slice(0, start) + "\n" + target.value.slice(end);
+
+          if (controller) {
+            controller.textInput.setInput(nextValue);
+          } else {
+            target.value = nextValue;
+            const inputEvent = new Event("input", { bubbles: true });
+            target.dispatchEvent(inputEvent);
+          }
+
+          // Place caret right after the inserted newline.
+          requestAnimationFrame(() => {
+            target.selectionStart = start + 1;
+            target.selectionEnd = start + 1;
+          });
+        }
         return;
       }
       e.preventDefault();