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riched20: Defer releasing the host if inside a notify callback. 

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=51521
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Huw Davies 2021-12-14 07:36:13 +00:00 committed by Alexandre Julliard
parent 77f5966596
commit 8138159f20
1 changed files with 23 additions and 6 deletions
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29
dlls/riched20/txthost.c
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@ -44,11 +44,13 @@ struct host
unsigned int client_edge : 1;
unsigned int use_set_rect : 1;
unsigned int use_back_colour : 1;
unsigned int defer_release : 1;
PARAFORMAT2 para_fmt;
DWORD props, scrollbars, event_mask;
RECT client_rect, set_rect;
COLORREF back_colour;
WCHAR password_char;
unsigned int notify_level;
};
static const ITextHost2Vtbl textHostVtbl;
@ -118,6 +120,8 @@ struct host *host_create( HWND hwnd, CREATESTRUCTW *cs, BOOL emulate_10 )
GetClientRect( hwnd, &texthost->client_rect );
texthost->use_back_colour = 0;
texthost->password_char = (texthost->props & TXTBIT_USEPASSWORD) ? '*' : 0;
texthost->defer_release = 0;
texthost->notify_level = 0;
return texthost;
}
@ -1098,12 +1102,24 @@ static LRESULT RichEditWndProc_common( HWND hwnd, UINT msg, WPARAM wparam,
if ((((host->event_mask & ENM_KEYEVENTS) && msg >= WM_KEYFIRST && msg <= WM_KEYLAST) ||
((host->event_mask & ENM_MOUSEEVENTS) && msg >= WM_MOUSEFIRST && msg <= WM_MOUSELAST) ||
((host->event_mask & ENM_SCROLLEVENTS) && msg >= WM_HSCROLL && msg <= WM_VSCROLL)) &&
send_msg_filter( host, msg, &wparam, &lparam ))
((host->event_mask & ENM_SCROLLEVENTS) && msg >= WM_HSCROLL && msg <= WM_VSCROLL)))
{
TRACE( "exit (filtered) hwnd %p msg %04x (%s) %lx %lx -> %lu\n",
hwnd, msg, get_msg_name(msg), wparam, lparam, res );
return res;
host->notify_level++;
res = send_msg_filter( host, msg, &wparam, &lparam );
if (!--host->notify_level && host->defer_release)
{
TRACE( "exit (filtered deferred release) hwnd %p msg %04x (%s) %lx %lx -> 0\n",
hwnd, msg, get_msg_name(msg), wparam, lparam );
ITextHost2_Release( &host->ITextHost_iface );
return 0;
}
if (res)
{
TRACE( "exit (filtered %lu) hwnd %p msg %04x (%s) %lx %lx -> 0\n",
res, hwnd, msg, get_msg_name(msg), wparam, lparam );
return 0;
}
}
switch (msg)
@ -1139,7 +1155,8 @@ static LRESULT RichEditWndProc_common( HWND hwnd, UINT msg, WPARAM wparam,
break;
}
case WM_DESTROY:
ITextHost2_Release( &host->ITextHost_iface );
if (!host->notify_level) ITextHost2_Release( &host->ITextHost_iface );
else host->defer_release = 1;
return 0;
case WM_ERASEBKGND: