From 7890e815de1370a8cb969c32cf400a2cf6a00cbf Mon Sep 17 00:00:00 2001
From: fanlumaster <1730976608@qq.com>
Date: Sun, 18 Jan 2026 17:34:01 +0800
Subject: [PATCH] feat: also sync double/single char status when switch windows

---
 src/IME/MetasequoiaIME.cpp |  6 ++++--
 src/IPC/Ipc.cpp            | 11 ++++++++++-
 src/IPC/Ipc.h              |  2 +-
 3 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/IME/MetasequoiaIME.cpp b/src/IME/MetasequoiaIME.cpp
index f4fb3078..599d297f 100644
--- a/src/IME/MetasequoiaIME.cpp
+++ b/src/IME/MetasequoiaIME.cpp
@@ -647,10 +647,12 @@ LRESULT CALLBACK CMetasequoiaIME_WindowProc(HWND hWnd, UINT message, WPARAM wPar
         break;
     }
     case WM_ThreadFocus: {
-        /* 通知 server 端更新一下 ftb 中英和标点的状态 */
+        /* 通知 server 端更新一下 ftb 中英、全半角、标点的状态 */
         SendIMEStatusEventToUIProcessViaNamedPipe(                                                          //
             pIME->GetCompositionProcessorEngine()->GetIMEMode(pIME->_GetThreadMgr(), pIME->_GetClientId()), //
-            pIME->GetCompositionProcessorEngine()->GetPunctuationMode(pIME->_GetThreadMgr(), pIME->_GetClientId()));
+            pIME->GetCompositionProcessorEngine()->GetDoubleSingleByteMode(pIME->_GetThreadMgr(),
+                                                                           pIME->_GetClientId()),                    //
+            pIME->GetCompositionProcessorEngine()->GetPunctuationMode(pIME->_GetThreadMgr(), pIME->_GetClientId())); //
         break;
     }
     default:
diff --git a/src/IPC/Ipc.cpp b/src/IPC/Ipc.cpp
index 9a216f7f..f99971b6 100644
--- a/src/IPC/Ipc.cpp
+++ b/src/IPC/Ipc.cpp
@@ -945,10 +945,11 @@ int SendIMEActivationEventToUIProcessViaNamedPipe()
  * @brief Send IME status to UI process via named pipe
  *
  * @param kbdIsOpen
+ * @param fullwidthIsOpen
  * @param puncIsOpen
  * @return int
  */
-int SendIMEStatusEventToUIProcessViaNamedPipe(bool kbdIsOpen, bool puncIsOpen)
+int SendIMEStatusEventToUIProcessViaNamedPipe(bool kbdIsOpen, bool fullwidthIsOpen, bool puncIsOpen)
 {
     std::wstring status = L"ftbStatus";
     if (kbdIsOpen)
@@ -959,6 +960,14 @@ int SendIMEStatusEventToUIProcessViaNamedPipe(bool kbdIsOpen, bool puncIsOpen)
     {
         status += L"0";
     }
+    if (fullwidthIsOpen)
+    {
+        status += L"1";
+    }
+    else
+    {
+        status += L"0";
+    }
     if (puncIsOpen)
     {
         status += L"1";
diff --git a/src/IPC/Ipc.h b/src/IPC/Ipc.h
index cf231ad4..2460e83d 100644
--- a/src/IPC/Ipc.h
+++ b/src/IPC/Ipc.h
@@ -117,7 +117,7 @@ int SendMoveCandidateWndEventToUIProcess();
 int SendLangbarRightClickEventToUIProcess(const RECT *prcArea);
 int SendIMEActivationEventToUIProcessViaNamedPipe();
 int SendIMEDeactivationEventToUIProcessViaNamedPipe();
-int SendIMEStatusEventToUIProcessViaNamedPipe(bool kbdIsOpen, bool puncIsOpen);
+int SendIMEStatusEventToUIProcessViaNamedPipe(bool kbdIsOpen, bool fullwidthIsOpen, bool puncIsOpen);
 int SendIMESwitchEventToUIProcessViaNamedPipe(UINT uImeStatus);
 int SendPuncSwitchEventToUIProcessViaNamedPipe(BOOL isPunc);
 int SendDoubleSingleByteSwitchEventToUIProcessViaNamedPipe(BOOL isDoubleSingleByte);