user32/tests: Add tests for maximizing and minimizing MDI child windows.

dlls/user32/tests/win.c

@@ -6979,6 +6979,132 @@ static void test_ShowWindow_child(HWND hwndMain)
     DestroyWindow(hwnd);
 }
 
+static void test_ShowWindow_mdichild(HWND hwndMain)
+{
+    RECT rect, orig, expect;
+    BOOL ret;
+    HWND mdiclient, hwnd, hwnd2;
+    LONG style;
+    POINT pt = {0};
+    CLIENTCREATESTRUCT mdi_client_cs = {0,1};
+
+    SetRect(&orig, 20, 20, 210, 110);
+    GetClientRect(hwndMain, &rect);
+    mdiclient = CreateWindowA("mdiclient", "MDI client", WS_CHILD,
+                              rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top,
+                              hwndMain, 0, 0, &mdi_client_cs);
+    ok(!!mdiclient, "failed to create window, error %u\n", GetLastError());
+    hwnd = CreateWindowExA(WS_EX_MDICHILD, "MainWindowClass", "MDI child",
+                           WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX,
+                           orig.left, orig.top, orig.right - orig.left,
+                           orig.bottom - orig.top, mdiclient, 0, 0, NULL);
+    ok(!!hwnd, "failed to create window, error %u\n", GetLastError());
+    hwnd2 = CreateWindowExA(WS_EX_MDICHILD, "MainWindowClass", "MDI child 2",
+                            WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX,
+                            orig.left, orig.top, orig.right - orig.left,
+                            orig.bottom - orig.top, mdiclient, 0, 0, NULL);
+    ok(!!hwnd2, "failed to create window, error %u\n", GetLastError());
+
+    ClientToScreen(hwndMain, &pt);
+    OffsetRect(&orig, pt.x, pt.y);
+
+    style = GetWindowLongA(hwnd, GWL_STYLE);
+    ok(!(style & WS_DISABLED), "window should not be disabled\n");
+    ok(style & WS_VISIBLE, "window should not be visible\n");
+    ok(!(style & WS_MINIMIZE), "window should not be minimized\n");
+    ok(!(style & WS_MAXIMIZE), "window should not be maximized\n");
+    GetWindowRect(hwnd, &rect);
+    ok(EqualRect(&orig, &rect), "expected %s, got %s\n",
+       wine_dbgstr_rect(&orig), wine_dbgstr_rect(&rect));
+
+    ret = ShowWindow(hwnd, SW_MINIMIZE);
+    ok(ret, "wrong ret %d\n", ret);
+    style = GetWindowLongA(hwnd, GWL_STYLE);
+    ok(!(style & WS_DISABLED), "window should not be disabled\n");
+    ok(style & WS_VISIBLE, "window should be visible\n");
+    ok(style & WS_MINIMIZE, "window should be minimized\n");
+    ok(!(style & WS_MAXIMIZE), "window should not be maximized\n");
+    GetWindowRect(hwnd, &rect);
+    GetClientRect(hwndMain, &expect);
+    SetRect(&expect, 0, expect.bottom - GetSystemMetrics(SM_CYMINIMIZED),
+            GetSystemMetrics(SM_CXMINIMIZED), expect.bottom);
+    OffsetRect(&expect, pt.x, pt.y);
+    todo_wine
+    ok(EqualRect(&expect, &rect), "expected %s, got %s\n",
+       wine_dbgstr_rect(&expect), wine_dbgstr_rect(&rect));
+    /* shouldn't be able to resize minimized windows */
+    ret = SetWindowPos(hwnd, 0, 0, 0, 200, 200, SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER);
+    ok(ret, "wrong ret %d\n", ret);
+    GetWindowRect(hwnd, &rect);
+    todo_wine
+    ok(EqualRect(&expect, &rect), "expected %s, got %s\n",
+       wine_dbgstr_rect(&expect), wine_dbgstr_rect(&rect));
+
+    /* multiple minimized children also stack; here the parent is too small to
+     * fit more than one per row */
+    OffsetRect(&expect, 0, -GetSystemMetrics(SM_CYMINIMIZED));
+    ret = ShowWindow(hwnd2, SW_MINIMIZE);
+    ok(ret, "wrong ret %d\n", ret);
+    style = GetWindowLongA(hwnd2, GWL_STYLE);
+    ok(!(style & WS_DISABLED), "window should not be disabled\n");
+    ok(style & WS_VISIBLE, "window should be visible\n");
+    ok(style & WS_MINIMIZE, "window should be minimized\n");
+    ok(!(style & WS_MAXIMIZE), "window should not be maximized\n");
+    GetWindowRect(hwnd2, &rect);
+    todo_wine
+    ok(EqualRect(&expect, &rect), "expected %s, got %s\n",
+       wine_dbgstr_rect(&expect), wine_dbgstr_rect(&rect));
+
+    ShowWindow(hwnd, SW_RESTORE);
+    ok(ret, "wrong ret %d\n", ret);
+    style = GetWindowLongA(hwnd, GWL_STYLE);
+    ok(!(style & WS_DISABLED), "window should not be disabled\n");
+    ok(style & WS_VISIBLE, "window should be visible\n");
+    ok(!(style & WS_MINIMIZE), "window should not be minimized\n");
+    ok(!(style & WS_MAXIMIZE), "window should not be maximized\n");
+    GetWindowRect(hwnd, &rect);
+    ok(EqualRect(&orig, &rect), "expected %s, got %s\n",
+       wine_dbgstr_rect(&orig), wine_dbgstr_rect(&rect));
+
+    ShowWindow(hwnd, SW_MAXIMIZE);
+    ok(ret, "wrong ret %d\n", ret);
+    style = GetWindowLongA(hwnd, GWL_STYLE);
+    ok(!(style & WS_DISABLED), "window should not be disabled\n");
+    ok(style & WS_VISIBLE, "window should be visible\n");
+    ok(!(style & WS_MINIMIZE), "window should be minimized\n");
+    ok(style & WS_MAXIMIZE, "window should not be maximized\n");
+    GetWindowRect(hwnd, &rect);
+    GetClientRect(hwndMain, &expect);
+    AdjustWindowRectEx(&expect, GetWindowLongA(hwnd, GWL_STYLE) & ~WS_BORDER,
+                       0, GetWindowLongA(hwnd, GWL_EXSTYLE));
+    OffsetRect(&expect, pt.x, pt.y);
+    ok(EqualRect(&expect, &rect), "expected %s, got %s\n",
+       wine_dbgstr_rect(&expect), wine_dbgstr_rect(&rect));
+    /* maximized windows can be resized */
+    ret = SetWindowPos(hwnd, 0, 300, 300, 200, 200, SWP_NOACTIVATE | SWP_NOZORDER);
+    ok(ret, "wrong ret %d\n", ret);
+    GetWindowRect(hwnd, &rect);
+    SetRect(&expect, 300, 300, 500, 500);
+    OffsetRect(&expect, pt.x, pt.y);
+    ok(EqualRect(&expect, &rect), "expected %s, got %s\n",
+       wine_dbgstr_rect(&expect), wine_dbgstr_rect(&rect));
+
+    ShowWindow(hwnd, SW_RESTORE);
+    ok(ret, "wrong ret %d\n", ret);
+    style = GetWindowLongA(hwnd, GWL_STYLE);
+    ok(!(style & WS_DISABLED), "window should not be disabled\n");
+    ok(style & WS_VISIBLE, "window should be visible\n");
+    ok(!(style & WS_MINIMIZE), "window should not be minimized\n");
+    ok(!(style & WS_MAXIMIZE), "window should not be maximized\n");
+    GetWindowRect(hwnd, &rect);
+    ok(EqualRect(&orig, &rect), "expected %s, got %s\n",
+       wine_dbgstr_rect(&orig), wine_dbgstr_rect(&rect));
+
+    DestroyWindow(hwnd2);
+    DestroyWindow(hwnd);
+    DestroyWindow(mdiclient);
+}
+
 static DWORD CALLBACK enablewindow_thread(LPVOID arg)
 {
     HWND hwnd = arg;
@@ -11345,6 +11471,7 @@ START_TEST(win)
     test_ShowWindow();
     test_ShowWindow_owned(hwndMain);
     test_ShowWindow_child(hwndMain);
+    test_ShowWindow_mdichild(hwndMain);
     test_EnableWindow();
     test_gettext();
     test_GetUpdateRect();