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win32u: Move is_window_drawable implementation from user32. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2022-03-08 14:24:28 +01:00 committed by Alexandre Julliard
parent a36fcc827a
commit 9daec6fd94
3 changed files with 36 additions and 88 deletions
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90
dlls/user32/win.c
View File

@ -287,76 +287,6 @@ static HWND *list_window_children( HDESK desktop, HWND hwnd, UNICODE_STRING *cla
}
/*******************************************************************
* list_window_parents
*
* Build an array of all parents of a given window, starting with
* the immediate parent. The array must be freed with HeapFree.
*/
static HWND *list_window_parents( HWND hwnd )
{
WND *win;
HWND current, *list;
int i, pos = 0, size = 16, count;
if (!(list = HeapAlloc( GetProcessHeap(), 0, size * sizeof(HWND) ))) return NULL;
current = hwnd;
for (;;)
{
if (!(win = WIN_GetPtr( current ))) goto empty;
if (win == WND_OTHER_PROCESS) break; /* need to do it the hard way */
if (win == WND_DESKTOP)
{
if (!pos) goto empty;
list[pos] = 0;
return list;
}
list[pos] = current = win->parent;
WIN_ReleasePtr( win );
if (!current) return list;
if (++pos == size - 1)
{
/* need to grow the list */
HWND *new_list = HeapReAlloc( GetProcessHeap(), 0, list, (size+16) * sizeof(HWND) );
if (!new_list) goto empty;
list = new_list;
size += 16;
}
}
/* at least one parent belongs to another process, have to query the server */
for (;;)
{
count = 0;
SERVER_START_REQ( get_window_parents )
{
req->handle = wine_server_user_handle( hwnd );
wine_server_set_reply( req, list, (size-1) * sizeof(user_handle_t) );
if (!wine_server_call( req )) count = reply->count;
}
SERVER_END_REQ;
if (!count) goto empty;
if (size > count)
{
/* start from the end since HWND is potentially larger than user_handle_t */
for (i = count - 1; i >= 0; i--)
list[i] = wine_server_ptr_handle( ((user_handle_t *)list)[i] );
list[count] = 0;
return list;
}
HeapFree( GetProcessHeap(), 0, list );
size = count + 1;
if (!(list = HeapAlloc( GetProcessHeap(), 0, size * sizeof(HWND) ))) return NULL;
}
empty:
HeapFree( GetProcessHeap(), 0, list );
return NULL;
}
/*******************************************************************
* send_parent_notify
*/
@ -3029,24 +2959,8 @@ BOOL WINAPI IsWindowVisible( HWND hwnd )
*/
BOOL WIN_IsWindowDrawable( HWND hwnd, BOOL icon )
{
HWND *list;
BOOL retval = TRUE;
int i;
LONG style = GetWindowLongW( hwnd, GWL_STYLE );
if (!(style & WS_VISIBLE)) return FALSE;
if ((style & WS_MINIMIZE) && icon && GetClassLongPtrW( hwnd, GCLP_HICON )) return FALSE;
if (!(list = list_window_parents( hwnd ))) return TRUE;
if (list[0])
{
for (i = 0; list[i+1]; i++)
if ((GetWindowLongW( list[i], GWL_STYLE ) & (WS_VISIBLE|WS_MINIMIZE)) != WS_VISIBLE)
break;
retval = !list[i+1] && (list[i] == GetDesktopWindow()); /* top message window isn't visible */
}
HeapFree( GetProcessHeap(), 0, list );
return retval;
/* FIXME: move callers to win32u */
return NtUserCallHwndParam( hwnd, icon, NtUserIsWindowDrawable );
}

32
dlls/win32u/window.c
View File

@ -625,6 +625,35 @@ static BOOL is_window_visible( HWND hwnd )
return retval;
}
/***********************************************************************
* is_window_drawable
*
* hwnd is drawable when it is visible, all parents are not
* minimized, and it is itself not minimized unless we are
* trying to draw its default class icon.
*/
static BOOL is_window_drawable( HWND hwnd, BOOL icon )
{
HWND *list;
BOOL retval = TRUE;
int i;
LONG style = get_window_long( hwnd, GWL_STYLE );
if (!(style & WS_VISIBLE)) return FALSE;
if ((style & WS_MINIMIZE) && icon && get_class_long_ptr( hwnd, GCLP_HICON, FALSE )) return FALSE;
if (!(list = list_window_parents( hwnd ))) return TRUE;
if (list[0])
{
for (i = 0; list[i+1]; i++)
if ((get_window_long( list[i], GWL_STYLE ) & (WS_VISIBLE|WS_MINIMIZE)) != WS_VISIBLE)
break;
retval = !list[i+1] && (list[i] == user_callbacks->pGetDesktopWindow()); /* top message window isn't visible */
}
free( list );
return retval;
}
static LONG_PTR get_win_data( const void *ptr, UINT size )
{
if (size == sizeof(WORD))
@ -1015,6 +1044,9 @@ ULONG_PTR WINAPI NtUserCallHwndParam( HWND hwnd, DWORD_PTR param, DWORD code )
return get_window_word( hwnd, param );
case NtUserIsChild:
return is_child( hwnd, UlongToHandle(param) );
/* temporary exports */
case NtUserIsWindowDrawable:
return is_window_drawable( hwnd, param );
default:
FIXME( "invalid code %u\n", code );
return 0;

2
include/ntuser.h
View File

@ -161,6 +161,8 @@ enum
NtUserGetWindowThread,
NtUserGetWindowWord,
NtUserIsChild,
/* temporary exports */
NtUserIsWindowDrawable,
};
/* color index used to retrieve system 55aa brush */