imm32: Only call ImmSetActiveContext for active window in ImmAssociateContext.

dlls/imm32/imm.c

@@ -592,12 +592,6 @@ HIMC WINAPI ImmAssociateContext(HWND hWnd, HIMC hIMC)
     if (!IsWindow(hWnd) || (hIMC && !data))
         return NULL;
 
-    /*
-     * If already associated just return
-     */
-    if (hIMC && data->IMC.hWnd == hWnd)
-        return hIMC;
-
     if (hIMC && IMM_IsCrossThreadAccess(hWnd, hIMC))
         return NULL;
 
@@ -608,6 +602,7 @@ HIMC WINAPI ImmAssociateContext(HWND hWnd, HIMC hIMC)
     else if (old == (HIMC)-1)
         old = NULL;
 
+    /* If already associated just return */
     if (old == hIMC)
         return hIMC;
 
@@ -618,8 +613,11 @@ HIMC WINAPI ImmAssociateContext(HWND hWnd, HIMC hIMC)
     else
         SetPropW(hWnd, szwWineIMCProperty, hIMC);
 
-    ImmSetActiveContext(hWnd, old, FALSE);
-    ImmSetActiveContext(hWnd, hIMC, TRUE);
+    if (GetActiveWindow() == hWnd)
+    {
+        ImmSetActiveContext(hWnd, old, FALSE);
+        ImmSetActiveContext(hWnd, hIMC, TRUE);
+    }
     return old;
 }
 

dlls/imm32/tests/imm32.c

@@ -662,6 +662,7 @@ static void test_ImmAssociateContextEx(void)
     if (imc)
     {
         HIMC retimc, newimc;
+        HWND focus;
 
         SET_ENABLE(WM_IME_SETCONTEXT_ACTIVATE, TRUE);
         SET_ENABLE(WM_IME_SETCONTEXT_DEACTIVATE, TRUE);
@@ -703,11 +704,19 @@ static void test_ImmAssociateContextEx(void)
         ok(retimc == newimc, "handles should be the same\n");
         ImmReleaseContext(hwnd,retimc);
 
+        focus = CreateWindowA("button", "button", 0, 0, 0, 0, 0, 0, 0, 0, 0);
+        ok(focus != NULL, "CreateWindow failed\n");
         SET_EXPECT(WM_IME_SETCONTEXT_DEACTIVATE);
+        SetFocus(focus);
+        todo_wine CHECK_CALLED(WM_IME_SETCONTEXT_DEACTIVATE);
+        rc = pImmAssociateContextEx(hwnd, imc, 0);
+        ok(rc, "ImmAssociateContextEx failed\n");
         SET_EXPECT(WM_IME_SETCONTEXT_ACTIVATE);
+        DestroyWindow(focus);
+        todo_wine CHECK_CALLED(WM_IME_SETCONTEXT_ACTIVATE);
+        SetFocus(hwnd);
+
         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);