[IMM32] Delete Wine-specific functions (#3902)

We don't need Wine-specific functions for Japanese input.
- Delete __wine_get_ui_window, __wine_register_window and __wine_unregister_window functions.
- Modify imm32.spec.
CORE-11700

dll/win32/imm32/imm.c

@@ -623,7 +623,6 @@ static CRITICAL_SECTION_DEBUG critsect_debug =
       0, 0, { (DWORD_PTR)(__FILE__ ": threaddata_cs") }
 };
 static CRITICAL_SECTION threaddata_cs = { &critsect_debug, -1, 0, 0, 0, 0 };
-static BOOL disable_ime;
 
 static inline BOOL is_himc_ime_unicode(const InputContextData *data)
 {
@@ -661,38 +660,6 @@ static inline CHAR *strdupWtoA( const WCHAR *str )
     return ret;
 }
 
-static IMMThreadData *IMM_GetThreadData(HWND hwnd, DWORD thread)
-{
-    IMMThreadData *data;
-    DWORD process;
-
-    if (hwnd)
-    {
-        if (!(thread = GetWindowThreadProcessId(hwnd, &process))) return NULL;
-        if (process != GetCurrentProcessId()) return NULL;
-    }
-    else if (thread)
-    {
-        HANDLE h = OpenThread(THREAD_QUERY_INFORMATION, FALSE, thread);
-        if (!h) return NULL;
-        process = GetProcessIdOfThread(h);
-        CloseHandle(h);
-        if (process != GetCurrentProcessId()) return NULL;
-    }
-    else
-        thread = GetCurrentThreadId();
-
-    EnterCriticalSection(&threaddata_cs);
-    LIST_FOR_EACH_ENTRY(data, &ImmThreadDataList, IMMThreadData, entry)
-        if (data->threadID == thread) return data;
-
-    data = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data));
-    data->threadID = thread;
-    list_add_head(&ImmThreadDataList,&data->entry);
-    TRACE("Thread Data Created (%x)\n",thread);
-    return data;
-}
-
 static HMODULE load_graphics_driver(void)
 {
     static const WCHAR display_device_guid_propW[] = {
@@ -795,12 +762,6 @@ static ImmHkl *IMM_GetImmHkl(HKL hkl)
 }
 #undef LOAD_FUNCPTR
 
-HWND WINAPI __wine_get_ui_window(HKL hkl)
-{
-    ImmHkl *immHkl = IMM_GetImmHkl(hkl);
-    return immHkl->UIWnd;
-}
-
 /* for posting messages as the IME */
 static void ImmInternalPostIMEMessage(InputContextData *data, UINT msg, WPARAM wParam, LPARAM lParam)
 {
@@ -2605,97 +2566,6 @@ BOOL WINAPI ImmGetConversionStatus(
     return TRUE;
 }
 
-static BOOL needs_ime_window(HWND hwnd)
-{
-    WCHAR classW[8];
-
-    if (GetClassNameW(hwnd, classW, ARRAY_SIZE(classW)) && !lstrcmpW(classW, szwIME))
-        return FALSE;
-    if (GetClassLongPtrW(hwnd, GCL_STYLE) & CS_IME) return FALSE;
-
-    return TRUE;
-}
-
-/***********************************************************************
- *		__wine_register_window (IMM32.@)
- */
-BOOL WINAPI __wine_register_window(HWND hwnd)
-{
-    HWND new = NULL;
-    IMMThreadData *thread_data;
-    TRACE("(%p)\n", hwnd);
-
-    if (!needs_ime_window(hwnd))
-        return FALSE;
-
-    thread_data = IMM_GetThreadData(hwnd, 0);
-    if (!thread_data)
-        return FALSE;
-
-    if (thread_data->disableIME || disable_ime)
-    {
-        TRACE("IME for this thread is disabled\n");
-        LeaveCriticalSection(&threaddata_cs);
-        return FALSE;
-    }
-    thread_data->windowRefs++;
-    TRACE("windowRefs=%u, hwndDefault=%p\n",
-          thread_data->windowRefs, thread_data->hwndDefault);
-
-    /* Create default IME window */
-    if (thread_data->windowRefs == 1)
-    {
-        /* Do not create the window inside of a critical section */
-        LeaveCriticalSection(&threaddata_cs);
-        new = CreateWindowExW( 0, szwIME, szwDefaultIME,
-                               WS_POPUP | WS_DISABLED | WS_CLIPSIBLINGS,
-                               0, 0, 1, 1, 0, 0, 0, 0);
-        /* thread_data is in the current thread so we can assume it's still valid */
-        EnterCriticalSection(&threaddata_cs);
-        /* See if anyone beat us */
-        if (thread_data->hwndDefault == NULL)
-        {
-            thread_data->hwndDefault = new;
-            new = NULL;
-            TRACE("Default is %p\n", thread_data->hwndDefault);
-        }
-    }
-
-    LeaveCriticalSection(&threaddata_cs);
-
-    /* Clean up an unused new window outside of the critical section */
-    if (new != NULL)
-        DestroyWindow(new);
-    return TRUE;
-}
-
-/***********************************************************************
- *		__wine_unregister_window (IMM32.@)
- */
-void WINAPI __wine_unregister_window(HWND hwnd)
-{
-    HWND to_destroy = 0;
-    IMMThreadData *thread_data;
-    TRACE("(%p)\n", hwnd);
-
-    thread_data = IMM_GetThreadData(hwnd, 0);
-    if (!thread_data) return;
-
-    thread_data->windowRefs--;
-    TRACE("windowRefs=%u, hwndDefault=%p\n",
-          thread_data->windowRefs, thread_data->hwndDefault);
-
-    /* Destroy default IME window */
-    if (thread_data->windowRefs == 0 && thread_data->hwndDefault)
-    {
-        to_destroy = thread_data->hwndDefault;
-        thread_data->hwndDefault = NULL;
-    }
-    LeaveCriticalSection(&threaddata_cs);
-
-    if (to_destroy) DestroyWindow( to_destroy );
-}
-
 /***********************************************************************
  *		ImmGetDefaultIMEWnd (IMM32.@)
  */

dll/win32/imm32/imm32.spec

@@ -113,9 +113,3 @@
 @ stdcall -stub ImmWINNLSEnableIME(ptr long)
 @ stdcall -stub ImmWINNLSGetEnableStatus(ptr)
 @ stub ImmWINNLSGetIMEHotkey
-
-################################################################
-# Wine internal extensions
-@ stdcall __wine_get_ui_window(ptr)
-@ stdcall __wine_register_window(long)
-@ stdcall __wine_unregister_window(long)