Sweden-Number/dlls/comctl32/tests/subclass.c

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/* Unit tests for subclassed windows.
*
* Copyright 2004 Kevin Koltzau
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <assert.h>
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "commctrl.h"
#include "wine/heap.h"
#include "wine/test.h"
static BOOL (WINAPI *pSetWindowSubclass)(HWND, SUBCLASSPROC, UINT_PTR, DWORD_PTR);
static BOOL (WINAPI *pRemoveWindowSubclass)(HWND, SUBCLASSPROC, UINT_PTR);
static LRESULT (WINAPI *pDefSubclassProc)(HWND, UINT, WPARAM, LPARAM);
#define SEND_NEST 0x01
#define DELETE_SELF 0x02
#define DELETE_PREV 0x04
struct message {
int procnum; /* WndProc id message is expected from */
WPARAM wParam; /* expected value of wParam */
};
static int sequence_cnt, sequence_size;
static struct message* sequence;
static const struct message Sub_BasicTest[] = {
{ 2, 1 },
{ 1, 1 },
{ 2, 2 },
{ 1, 2 },
{ 0 }
};
static const struct message Sub_DeletedTest[] = {
{ 2, 1 },
{ 1, 1 },
{ 0 }
};
static const struct message Sub_AfterDeletedTest[] = {
{ 1, 1 },
{ 0 }
};
static const struct message Sub_OldAfterNewTest[] = {
{ 3, 1 },
{ 2, 1 },
{ 1, 1 },
{ 3, 2 },
{ 2, 2 },
{ 1, 2 },
{ 0 }
};
static const struct message Sub_MixTest[] = {
{ 3, 1 },
{ 4, 1 },
{ 2, 1 },
{ 1, 1 },
{ 0 }
};
static const struct message Sub_MixAndNestTest[] = {
{ 3, 1 },
{ 4, 1 },
{ 3, 2 },
{ 4, 2 },
{ 2, 2 },
{ 1, 2 },
{ 2, 1 },
{ 1, 1 },
{ 0 }
};
static const struct message Sub_MixNestDelTest[] = {
{ 3, 1 },
{ 4, 1 },
{ 3, 2 },
{ 2, 2 },
{ 1, 2 },
{ 2, 1 },
{ 1, 1 },
{ 0 }
};
static const struct message Sub_MixDelPrevTest[] = {
{ 3, 1 },
{ 5, 1 },
{ 2, 1 },
{ 1, 1 },
{ 0 }
};
static void add_message(const struct message *msg)
{
if (!sequence)
{
sequence_size = 10;
sequence = heap_alloc( sequence_size * sizeof (struct message) );
}
if (sequence_cnt == sequence_size)
{
sequence_size *= 2;
sequence = heap_realloc( sequence, sequence_size * sizeof (struct message) );
}
assert(sequence);
sequence[sequence_cnt].wParam = msg->wParam;
sequence[sequence_cnt].procnum = msg->procnum;
sequence_cnt++;
}
static void flush_sequence(void)
{
heap_free(sequence);
sequence = NULL;
sequence_cnt = sequence_size = 0;
}
static void ok_sequence(const struct message *expected, const char *context)
{
static const struct message end_of_sequence = { 0, 0 };
const struct message *actual;
add_message(&end_of_sequence);
actual = sequence;
while(expected->procnum && actual->procnum)
{
ok(expected->procnum == actual->procnum,
"%s: the procnum %d was expected, but got procnum %d instead\n",
context, expected->procnum, actual->procnum);
ok(expected->wParam == actual->wParam,
"%s: in procnum %d expecting wParam 0x%lx got 0x%lx\n",
context, expected->procnum, expected->wParam, actual->wParam);
expected++;
actual++;
}
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ok(!expected->procnum, "Received fewer messages than expected\n");
ok(!actual->procnum, "Received more messages than expected\n");
flush_sequence();
}
static LRESULT WINAPI wnd_proc_1(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
struct message msg;
if(message == WM_USER) {
msg.wParam = wParam;
msg.procnum = 1;
add_message(&msg);
}
return DefWindowProcA(hwnd, message, wParam, lParam);
}
static WNDPROC orig_proc_3;
static LRESULT WINAPI wnd_proc_3(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
struct message msg;
if(message == WM_USER) {
msg.wParam = wParam;
msg.procnum = 3;
add_message(&msg);
}
return CallWindowProcA(orig_proc_3, hwnd, message, wParam, lParam);
}
static LRESULT WINAPI wnd_proc_sub(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam, UINT_PTR uldSubclass, DWORD_PTR dwRefData)
{
struct message msg;
if(message == WM_USER) {
msg.wParam = wParam;
msg.procnum = uldSubclass;
add_message(&msg);
if(lParam) {
if(dwRefData & DELETE_SELF) {
pRemoveWindowSubclass(hwnd, wnd_proc_sub, uldSubclass);
pRemoveWindowSubclass(hwnd, wnd_proc_sub, uldSubclass);
}
if(dwRefData & DELETE_PREV)
pRemoveWindowSubclass(hwnd, wnd_proc_sub, uldSubclass-1);
if(dwRefData & SEND_NEST)
SendMessageA(hwnd, WM_USER, wParam+1, 0);
}
}
return pDefSubclassProc(hwnd, message, wParam, lParam);
}
static void test_subclass(void)
{
BOOL ret;
HWND hwnd = CreateWindowExA(0, "TestSubclass", "Test subclass", WS_OVERLAPPEDWINDOW,
100, 100, 200, 200, 0, 0, 0, NULL);
ok(hwnd != NULL, "failed to create test subclass wnd\n");
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 2, 0);
ok(ret == TRUE, "Expected TRUE\n");
SendMessageA(hwnd, WM_USER, 1, 0);
SendMessageA(hwnd, WM_USER, 2, 0);
ok_sequence(Sub_BasicTest, "Basic");
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 2, DELETE_SELF);
ok(ret == TRUE, "Expected TRUE\n");
SendMessageA(hwnd, WM_USER, 1, 1);
ok_sequence(Sub_DeletedTest, "Deleted");
SendMessageA(hwnd, WM_USER, 1, 0);
ok_sequence(Sub_AfterDeletedTest, "After Deleted");
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 2, 0);
ok(ret == TRUE, "Expected TRUE\n");
orig_proc_3 = (WNDPROC)SetWindowLongPtrA(hwnd, GWLP_WNDPROC, (LONG_PTR)wnd_proc_3);
SendMessageA(hwnd, WM_USER, 1, 0);
SendMessageA(hwnd, WM_USER, 2, 0);
ok_sequence(Sub_OldAfterNewTest, "Old after New");
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 4, 0);
ok(ret == TRUE, "Expected TRUE\n");
SendMessageA(hwnd, WM_USER, 1, 0);
ok_sequence(Sub_MixTest, "Mix");
/* Now the fun starts */
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 4, SEND_NEST);
ok(ret == TRUE, "Expected TRUE\n");
SendMessageA(hwnd, WM_USER, 1, 1);
ok_sequence(Sub_MixAndNestTest, "Mix and nest");
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 4, SEND_NEST | DELETE_SELF);
ok(ret == TRUE, "Expected TRUE\n");
SendMessageA(hwnd, WM_USER, 1, 1);
ok_sequence(Sub_MixNestDelTest, "Mix, nest, del");
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 4, 0);
ok(ret == TRUE, "Expected TRUE\n");
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 5, DELETE_PREV);
ok(ret == TRUE, "Expected TRUE\n");
SendMessageA(hwnd, WM_USER, 1, 1);
ok_sequence(Sub_MixDelPrevTest, "Mix and del prev");
ret = pSetWindowSubclass(NULL, wnd_proc_sub, 1, 0);
ok(ret == FALSE, "Expected FALSE\n");
ret = pSetWindowSubclass(hwnd, NULL, 1, 0);
ok(ret == FALSE, "Expected FALSE\n");
pRemoveWindowSubclass(hwnd, wnd_proc_sub, 2);
pRemoveWindowSubclass(hwnd, wnd_proc_sub, 5);
DestroyWindow(hwnd);
}
static BOOL register_window_classes(void)
{
WNDCLASSA cls;
ATOM atom;
cls.style = 0;
cls.lpfnWndProc = wnd_proc_1;
cls.cbClsExtra = 0;
cls.cbWndExtra = 0;
cls.hInstance = GetModuleHandleA(0);
cls.hIcon = 0;
cls.hCursor = NULL;
cls.hbrBackground = NULL;
cls.lpszMenuName = NULL;
cls.lpszClassName = "TestSubclass";
atom = RegisterClassA(&cls);
ok(atom, "failed to register test class\n");
return atom != 0;
}
static BOOL init_function_pointers(void)
{
HMODULE hmod;
void *ptr;
hmod = LoadLibraryA("comctl32.dll");
ok(hmod != NULL, "got %p\n", hmod);
/* Functions have to be loaded by ordinal. Only XP and W2K3 export
* them by name.
*/
#define MAKEFUNC_ORD(f, ord) (p##f = (void*)GetProcAddress(hmod, (LPSTR)(ord)))
MAKEFUNC_ORD(SetWindowSubclass, 410);
MAKEFUNC_ORD(RemoveWindowSubclass, 412);
MAKEFUNC_ORD(DefSubclassProc, 413);
#undef MAKEFUNC_ORD
if(!pSetWindowSubclass || !pRemoveWindowSubclass || !pDefSubclassProc)
{
win_skip("SetWindowSubclass and friends are not available\n");
return FALSE;
}
/* test named exports */
ptr = GetProcAddress(hmod, "SetWindowSubclass");
ok(broken(ptr == 0) || ptr != 0, "expected named export for SetWindowSubclass\n");
if(ptr)
{
#define TESTNAMED(f) \
ptr = (void*)GetProcAddress(hmod, #f); \
ok(ptr != 0, "expected named export for " #f "\n");
TESTNAMED(RemoveWindowSubclass);
TESTNAMED(DefSubclassProc);
/* GetWindowSubclass exported for V6 only */
#undef TESTNAMED
}
return TRUE;
}
START_TEST(subclass)
{
if(!init_function_pointers()) return;
if(!register_window_classes()) return;
test_subclass();
}