From 4a3730838965b2caffdaa5ca81c93ce9b016a8e5 Mon Sep 17 00:00:00 2001
From: Alexandre Julliard <julliard@winehq.org>
Date: Thu, 1 May 2008 10:56:34 +0200
Subject: [PATCH] winex11: Register IME classes only when needed.

---
 dlls/winex11.drv/ime.c         | 68 +++++++++++++++++++++++-------------------
 dlls/winex11.drv/x11drv.h      |  4 +--
 dlls/winex11.drv/x11drv_main.c |  5 ++--
 3 files changed, 42 insertions(+), 35 deletions(-)

diff --git a/dlls/winex11.drv/ime.c b/dlls/winex11.drv/ime.c
index 5b5e8f29ea4..c1794104c41 100644
--- a/dlls/winex11.drv/ime.c
+++ b/dlls/winex11.drv/ime.c
@@ -123,6 +123,42 @@ static BOOL UnlockRealIMC(HIMC hIMC)
         return FALSE;
 }
 
+static void IME_RegisterClasses(void)
+{
+    static int done;
+    WNDCLASSW wndClass;
+
+    if (done) return;
+    done = 1;
+
+    ZeroMemory(&wndClass, sizeof(WNDCLASSW));
+    wndClass.style = CS_GLOBALCLASS | CS_IME | CS_HREDRAW | CS_VREDRAW;
+    wndClass.lpfnWndProc = IME_WindowProc;
+    wndClass.cbClsExtra = 0;
+    wndClass.cbWndExtra = 2 * sizeof(LONG);
+    wndClass.hInstance = x11drv_module;
+    wndClass.hCursor = LoadCursorW(NULL, (LPWSTR)IDC_ARROW);
+    wndClass.hIcon = LoadIconW(NULL, (LPWSTR)IDI_APPLICATION);
+    wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW +1);
+    wndClass.lpszMenuName   = 0;
+    wndClass.lpszClassName = UI_CLASS_NAME;
+
+    RegisterClassW(&wndClass);
+
+    WM_MSIME_SERVICE = RegisterWindowMessageA("MSIMEService");
+    WM_MSIME_RECONVERTOPTIONS = RegisterWindowMessageA("MSIMEReconvertOptions");
+    WM_MSIME_MOUSE = RegisterWindowMessageA("MSIMEMouseOperation");
+    WM_MSIME_RECONVERTREQUEST = RegisterWindowMessageA("MSIMEReconvertRequest");
+    WM_MSIME_RECONVERT = RegisterWindowMessageA("MSIMEReconvert");
+    WM_MSIME_QUERYPOSITION = RegisterWindowMessageA("MSIMEQueryPosition");
+    WM_MSIME_DOCUMENTFEED = RegisterWindowMessageA("MSIMEDocumentFeed");
+}
+
+void IME_UnregisterClasses(void)
+{
+    UnregisterClassW(UI_CLASS_NAME, x11drv_module);
+}
+
 static HIMCC ImeCreateBlankCompStr(void)
 {
     HIMCC rc;
@@ -520,6 +556,7 @@ BOOL WINAPI ImeInquire(LPIMEINFO lpIMEInfo, LPWSTR lpszUIClass,
                        LPCWSTR lpszOption)
 {
     TRACE("\n");
+    IME_RegisterClasses();
     lpIMEInfo->dwPrivateDataSize = sizeof (IMEPRIVATE);
     lpIMEInfo->fdwProperty = IME_PROP_UNICODE | IME_PROP_AT_CARET;
     lpIMEInfo->fdwConversionCaps = IME_CMODE_NATIVE;
@@ -907,37 +944,6 @@ DWORD WINAPI ImeGetImeMenuItems(HIMC hIMC,  DWORD dwFlags,  DWORD dwType,
 
 /* Interfaces to XIM and other parts of winex11drv */
 
-void IME_RegisterClasses(HINSTANCE hImeInst)
-{
-    WNDCLASSW wndClass;
-    ZeroMemory(&wndClass, sizeof(WNDCLASSW));
-    wndClass.style = CS_GLOBALCLASS | CS_IME | CS_HREDRAW | CS_VREDRAW;
-    wndClass.lpfnWndProc = (WNDPROC) IME_WindowProc;
-    wndClass.cbClsExtra = 0;
-    wndClass.cbWndExtra = 2 * sizeof(LONG);
-    wndClass.hInstance = hImeInst;
-    wndClass.hCursor = LoadCursorW(NULL, (LPWSTR)IDC_ARROW);
-    wndClass.hIcon = LoadIconW(NULL, (LPWSTR)IDI_APPLICATION);
-    wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW +1);
-    wndClass.lpszMenuName   = 0;
-    wndClass.lpszClassName = UI_CLASS_NAME;
-
-    RegisterClassW(&wndClass);
-
-    WM_MSIME_SERVICE = RegisterWindowMessageA("MSIMEService");
-    WM_MSIME_RECONVERTOPTIONS = RegisterWindowMessageA("MSIMEReconvertOptions");
-    WM_MSIME_MOUSE = RegisterWindowMessageA("MSIMEMouseOperation");
-    WM_MSIME_RECONVERTREQUEST = RegisterWindowMessageA("MSIMEReconvertRequest");
-    WM_MSIME_RECONVERT = RegisterWindowMessageA("MSIMEReconvert");
-    WM_MSIME_QUERYPOSITION = RegisterWindowMessageA("MSIMEQueryPosition");
-    WM_MSIME_DOCUMENTFEED = RegisterWindowMessageA("MSIMEDocumentFeed");
-}
-
-void IME_UnregisterClasses(HINSTANCE hImeInst)
-{
-    UnregisterClassW(UI_CLASS_NAME, hImeInst);
-}
-
 void IME_SetOpenStatus(BOOL fOpen)
 {
     LPINPUTCONTEXT lpIMC;
diff --git a/dlls/winex11.drv/x11drv.h b/dlls/winex11.drv/x11drv.h
index c543ef8ce0c..0033a1f3f52 100644
--- a/dlls/winex11.drv/x11drv.h
+++ b/dlls/winex11.drv/x11drv.h
@@ -274,8 +274,7 @@ extern Drawable get_glxdrawable(X11DRV_PDEVICE *physDev);
 extern BOOL destroy_glxpixmap(Display *display, XID glxpixmap);
 
 /* IME support */
-extern void IME_RegisterClasses(HINSTANCE hImeInst);
-extern void IME_UnregisterClasses(HINSTANCE hImeInst);
+extern void IME_UnregisterClasses(void);
 extern void IME_SetOpenStatus(BOOL fOpen);
 extern LRESULT IME_SendMessageToSelectedHWND(UINT msg, WPARAM wParam, LPARAM lParam);
 extern INT IME_GetCursorPos();
@@ -555,6 +554,7 @@ extern int primary_monitor;
 extern int copy_default_colors;
 extern int alloc_system_colors;
 extern int xrender_error_base;
+extern HMODULE x11drv_module;
 
 extern BYTE key_state_table[256];
 extern POINT cursor_pos;
diff --git a/dlls/winex11.drv/x11drv_main.c b/dlls/winex11.drv/x11drv_main.c
index 9d64a85dc4f..3287fea3ead 100644
--- a/dlls/winex11.drv/x11drv_main.c
+++ b/dlls/winex11.drv/x11drv_main.c
@@ -93,6 +93,7 @@ int copy_default_colors = 128;
 int alloc_system_colors = 256;
 DWORD thread_data_tls_index = TLS_OUT_OF_INDEXES;
 int xrender_error_base = 0;
+HMODULE x11drv_module = 0;
 
 static x11drv_error_callback err_callback;   /* current callback for error */
 static Display *err_callback_display;        /* display callback is set for */
@@ -582,6 +583,7 @@ static void process_detach(void)
     /* cleanup GDI */
     X11DRV_GDI_Finalize();
 
+    IME_UnregisterClasses();
     DeleteCriticalSection( &X11DRV_CritSection );
     TlsFree( thread_data_tls_index );
 }
@@ -674,15 +676,14 @@ BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
     switch(reason)
     {
     case DLL_PROCESS_ATTACH:
+        x11drv_module = hinst;
         ret = process_attach();
-        IME_RegisterClasses(hinst);
         break;
     case DLL_THREAD_DETACH:
         thread_detach();
         break;
     case DLL_PROCESS_DETACH:
         process_detach();
-        IME_UnregisterClasses(hinst);
         break;
     }
     return ret;
-- 
2.11.4.GIT