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Protect SetParent from creating circular window dependencies.

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Add a test case.
This commit is contained in:
Dmitry Timoshkov 2005-03-02 10:11:06 +00:00 committed by Alexandre Julliard
parent 5dfdd18abc
commit 8f0984c2a3
3 changed files with 103 additions and 8 deletions
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18
dlls/user/tests/msg.c
View File

@ -5440,6 +5440,7 @@ static void test_DestroyWindow(void)
/* test owner/parent of child2 */
test = GetParent(child2);
ok(test == GetDesktopWindow(), "wrong parent %p\n", test);
ok(!IsChild(parent, child2), "wrong parent/child %p/%p\n", parent, child2);
if(pGetAncestor) {
test = pGetAncestor(child2, GA_PARENT);
ok(test == GetDesktopWindow(), "wrong parent %p\n", test);
@ -5453,6 +5454,9 @@ static void test_DestroyWindow(void)
/* test owner/parent of the parent */
test = GetParent(parent);
ok(!test, "wrong parent %p\n", test);
todo_wine {
ok(!IsChild(GetDesktopWindow(), parent), "wrong parent/child %p/%p\n", GetDesktopWindow(), parent);
}
if(pGetAncestor) {
test = pGetAncestor(parent, GA_PARENT);
ok(test == GetDesktopWindow(), "wrong parent %p\n", test);
@ -5463,6 +5467,7 @@ static void test_DestroyWindow(void)
/* test owner/parent of child1 */
test = GetParent(child1);
ok(test == parent, "wrong parent %p\n", test);
ok(IsChild(parent, child1), "wrong parent/child %p/%p\n", parent, child1);
if(pGetAncestor) {
test = pGetAncestor(child1, GA_PARENT);
ok(test == parent, "wrong parent %p\n", test);
@ -5473,6 +5478,7 @@ static void test_DestroyWindow(void)
/* test owner/parent of child2 */
test = GetParent(child2);
ok(test == parent, "wrong parent %p\n", test);
ok(IsChild(parent, child2), "wrong parent/child %p/%p\n", parent, child2);
if(pGetAncestor) {
test = pGetAncestor(child2, GA_PARENT);
ok(test == parent, "wrong parent %p\n", test);
@ -5483,6 +5489,7 @@ static void test_DestroyWindow(void)
/* test owner/parent of child3 */
test = GetParent(child3);
ok(test == child1, "wrong parent %p\n", test);
ok(IsChild(parent, child3), "wrong parent/child %p/%p\n", parent, child3);
if(pGetAncestor) {
test = pGetAncestor(child3, GA_PARENT);
ok(test == child1, "wrong parent %p\n", test);
@ -5493,6 +5500,7 @@ static void test_DestroyWindow(void)
/* test owner/parent of child4 */
test = GetParent(child4);
ok(test == parent, "wrong parent %p\n", test);
ok(!IsChild(parent, child4), "wrong parent/child %p/%p\n", parent, child4);
if(pGetAncestor) {
test = pGetAncestor(child4, GA_PARENT);
ok(test == GetDesktopWindow(), "wrong parent %p\n", test);
@ -5514,11 +5522,11 @@ static void test_DestroyWindow(void)
test_DestroyWindow_flag = FALSE;
ok_sequence(destroy_window_with_children, "destroy window with children", 0);
ok(!IsWindow(parent), "parent still exists");
ok(!IsWindow(child1), "child1 still exists");
ok(!IsWindow(child2), "child2 still exists");
ok(!IsWindow(child3), "child3 still exists");
ok(!IsWindow(child4), "child4 still exists");
ok(!IsWindow(parent), "parent still exists\n");
ok(!IsWindow(child1), "child1 still exists\n");
ok(!IsWindow(child2), "child2 still exists\n");
ok(!IsWindow(child3), "child3 still exists\n");
ok(!IsWindow(child4), "child4 still exists\n");
test = GetCapture();
ok(!test, "wrong capture window %p\n", test);

86
dlls/user/tests/win.c
View File

@ -2281,8 +2281,7 @@ static void test_validatergn(HWND hwnd)
DestroyWindow( child );
}
void nccalchelper( HWND hwnd, INT x, INT y, RECT *prc)
static void nccalchelper(HWND hwnd, INT x, INT y, RECT *prc)
{
MoveWindow( hwnd, 0, 0, x, y, 0);
GetWindowRect( hwnd, prc);
@ -2293,7 +2292,7 @@ void nccalchelper( HWND hwnd, INT x, INT y, RECT *prc)
prc->left,prc->top,prc->right,prc->bottom);
}
void test_nccalcscroll( HWND parent)
static void test_nccalcscroll(HWND parent)
{
RECT rc1;
INT sbheight = GetSystemMetrics( SM_CYHSCROLL);
@ -2333,6 +2332,86 @@ void test_nccalcscroll( HWND parent)
DestroyWindow( hwnd);
}
static void test_SetParent(void)
{
HWND desktop = GetDesktopWindow();
BOOL is_win9x = GetWindowLongPtrW(desktop, GWLP_WNDPROC) == 0;
HWND parent, child1, child2, child3, child4;
parent = CreateWindowExA(0, "static", NULL, WS_OVERLAPPEDWINDOW,
100, 100, 200, 200, 0, 0, 0, NULL);
assert(parent != 0);
child1 = CreateWindowExA(0, "static", NULL, WS_CHILD,
0, 0, 50, 50, parent, 0, 0, NULL);
assert(child1 != 0);
child2 = CreateWindowExA(0, "static", NULL, WS_POPUP,
0, 0, 50, 50, child1, 0, 0, NULL);
assert(child2 != 0);
child3 = CreateWindowExA(0, "static", NULL, WS_CHILD,
0, 0, 50, 50, child2, 0, 0, NULL);
assert(child3 != 0);
child4 = CreateWindowExA(0, "static", NULL, WS_POPUP,
0, 0, 50, 50, child3, 0, 0, NULL);
assert(child4 != 0);
trace("parent %p, child1 %p, child2 %p, child3 %p, child4 %p\n",
parent, child1, child2, child3, child4);
check_parents(parent, desktop, 0, 0, 0, parent, parent);
check_parents(child1, parent, parent, parent, 0, parent, parent);
check_parents(child2, desktop, parent, parent, parent, child2, parent);
check_parents(child3, child2, child2, child2, 0, child2, parent);
check_parents(child4, desktop, child2, child2, child2, child4, parent);
todo_wine {
ok(!IsChild(desktop, parent), "wrong parent/child %p/%p\n", desktop, parent);
ok(!IsChild(desktop, child1), "wrong parent/child %p/%p\n", desktop, child1);
ok(!IsChild(desktop, child2), "wrong parent/child %p/%p\n", desktop, child2);
ok(!IsChild(desktop, child3), "wrong parent/child %p/%p\n", desktop, child3);
ok(!IsChild(desktop, child4), "wrong parent/child %p/%p\n", desktop, child4);
}
ok(IsChild(parent, child1), "wrong parent/child %p/%p\n", parent, child1);
todo_wine {
ok(!IsChild(desktop, child2), "wrong parent/child %p/%p\n", desktop, child2);
}
ok(!IsChild(parent, child2), "wrong parent/child %p/%p\n", parent, child2);
ok(!IsChild(child1, child2), "wrong parent/child %p/%p\n", child1, child2);
ok(!IsChild(parent, child3), "wrong parent/child %p/%p\n", parent, child3);
ok(IsChild(child2, child3), "wrong parent/child %p/%p\n", child2, child3);
ok(!IsChild(parent, child4), "wrong parent/child %p/%p\n", parent, child4);
ok(!IsChild(child3, child4), "wrong parent/child %p/%p\n", child3, child4);
todo_wine {
ok(!IsChild(desktop, child4), "wrong parent/child %p/%p\n", desktop, child4);
}
if (!is_win9x) /* Win9x doesn't survive this test */
{
ok(!SetParent(parent, child1), "SetParent should fail\n");
ok(!SetParent(child2, child3), "SetParent should fail\n");
ok(SetParent(child1, parent) != 0, "SetParent should not fail\n");
ok(SetParent(parent, child2) != 0, "SetParent should not fail\n");
ok(SetParent(parent, child3) != 0, "SetParent should not fail\n");
ok(!SetParent(child2, parent), "SetParent should fail\n");
ok(SetParent(parent, child4) != 0, "SetParent should not fail\n");
check_parents(parent, child4, child4, 0, 0, child4, parent);
check_parents(child1, parent, parent, parent, 0, child4, parent);
check_parents(child2, desktop, parent, parent, parent, child2, parent);
check_parents(child3, child2, child2, child2, 0, child2, parent);
check_parents(child4, desktop, child2, child2, child2, child4, parent);
}
ok(DestroyWindow(parent), "DestroyWindow() error %ld\n", GetLastError());
ok(!IsWindow(parent), "parent still exists\n");
ok(!IsWindow(child1), "child1 still exists\n");
ok(!IsWindow(child2), "child2 still exists\n");
ok(!IsWindow(child3), "child3 still exists\n");
ok(!IsWindow(child4), "child4 still exists\n");
}
START_TEST(win)
{
pGetAncestor = (void *)GetProcAddress( GetModuleHandleA("user32.dll"), "GetAncestor" );
@ -2376,6 +2455,7 @@ START_TEST(win)
test_capture_3(hwndMain, hwndMain2);
test_parent_owner();
test_SetParent();
test_shell_window();
test_mdi();

7
windows/win.c
View File

@ -2643,6 +2643,13 @@ HWND WINAPI SetParent( HWND hwnd, HWND parent )
return 0;
}
/* Some applications try to set a child as a parent */
if (IsChild(hwnd, parent))
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
if (!(full_handle = WIN_IsCurrentThread( hwnd )))
return (HWND)SendMessageW( hwnd, WM_WINE_SETPARENT, (WPARAM)parent, 0 );