imm32: Only call ImmSetActiveContext for focused window in ImmAssociateContext.

dlls/imm32/imm.c

@@ -771,7 +771,7 @@ HIMC WINAPI ImmAssociateContext(HWND hWnd, HIMC hIMC)
     else
         SetPropW(hWnd, szwWineIMCProperty, hIMC);
 
-    if (GetActiveWindow() == hWnd)
+    if (GetFocus() == hWnd)
     {
         ImmSetActiveContext(hWnd, old, FALSE);
         ImmSetActiveContext(hWnd, hIMC, TRUE);

dlls/imm32/tests/imm32.c

@@ -207,7 +207,7 @@ static void msg_spy_cleanup(void) {
 static const char wndcls[] = "winetest_imm32_wndcls";
 static enum { PHASE_UNKNOWN, FIRST_WINDOW, SECOND_WINDOW,
               CREATE_CANCEL, NCCREATE_CANCEL, IME_DISABLED } test_phase;
-static HWND hwnd;
+static HWND hwnd, child;
 
 static HWND get_ime_window(void);
 
@@ -326,6 +326,10 @@ static BOOL init(void) {
     if (!hwnd)
         return FALSE;
 
+    child = CreateWindowA("edit", "edit", WS_CHILD | WS_VISIBLE, 0, 0, 50, 50, hwnd, 0, 0, 0);
+    if (!child)
+        return FALSE;
+
     ShowWindow(hwnd, SW_SHOWNORMAL);
     UpdateWindow(hwnd);
 
@@ -726,9 +730,21 @@ static void test_ImmAssociateContextEx(void)
         SET_EXPECT(WM_IME_SETCONTEXT_ACTIVATE);
         DestroyWindow(focus);
         CHECK_CALLED(WM_IME_SETCONTEXT_ACTIVATE);
+
+        SET_EXPECT(WM_IME_SETCONTEXT_DEACTIVATE);
+        SetFocus(child);
+        CHECK_CALLED(WM_IME_SETCONTEXT_DEACTIVATE);
+        rc = pImmAssociateContextEx(hwnd, newimc, 0);
+        ok(rc, "ImmAssociateContextEx failed\n");
+        SET_EXPECT(WM_IME_SETCONTEXT_ACTIVATE);
         SetFocus(hwnd);
+        CHECK_CALLED(WM_IME_SETCONTEXT_ACTIVATE);
 
+        SET_EXPECT(WM_IME_SETCONTEXT_DEACTIVATE);
+        SET_EXPECT(WM_IME_SETCONTEXT_ACTIVATE);
         rc = pImmAssociateContextEx(hwnd, NULL, IACE_DEFAULT);
+        CHECK_CALLED(WM_IME_SETCONTEXT_DEACTIVATE);
+        CHECK_CALLED(WM_IME_SETCONTEXT_ACTIVATE);
         ok(rc, "ImmAssociateContextEx failed\n");
 
         SET_ENABLE(WM_IME_SETCONTEXT_ACTIVATE, FALSE);