2 * Focus and activation functions
4 * Copyright 1993 David Metcalfe
5 * Copyright 1995 Alex Korobka
6 * Copyright 1994, 2002 Alexandre Julliard
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
32 #include "wine/server.h"
33 #include "wine/debug.h"
35 WINE_DEFAULT_DEBUG_CHANNEL(win
);
38 /*****************************************************************
41 * Change the focus window, sending the WM_SETFOCUS and WM_KILLFOCUS messages
43 static HWND
set_focus_window( HWND hwnd
)
48 SERVER_START_REQ( set_focus_window
)
51 if ((ret
= !wine_server_call_err( req
))) previous
= reply
->previous
;
55 if (previous
== hwnd
) return previous
;
59 SendMessageW( previous
, WM_KILLFOCUS
, (WPARAM
)hwnd
, 0 );
60 if (hwnd
!= GetFocus()) return previous
; /* changed by the message */
64 if (USER_Driver
.pSetFocus
) USER_Driver
.pSetFocus(hwnd
);
65 SendMessageW( hwnd
, WM_SETFOCUS
, (WPARAM
)previous
, 0 );
71 /*******************************************************************
74 static BOOL
set_active_window( HWND hwnd
, HWND
*prev
, BOOL mouse
, BOOL focus
)
76 HWND previous
= GetActiveWindow();
78 DWORD old_thread
, new_thread
;
79 CBTACTIVATESTRUCT cbt
;
83 if (prev
) *prev
= hwnd
;
87 /* call CBT hook chain */
89 cbt
.hWndActive
= previous
;
90 if (HOOK_CallHooks( WH_CBT
, HCBT_ACTIVATE
, (WPARAM
)hwnd
, (LPARAM
)&cbt
, TRUE
)) return FALSE
;
92 if (IsWindow(previous
))
94 SendMessageW( previous
, WM_NCACTIVATE
, FALSE
, 0 );
95 SendMessageW( previous
, WM_ACTIVATE
,
96 MAKEWPARAM( WA_INACTIVE
, IsIconic(previous
) ), (LPARAM
)hwnd
);
99 SERVER_START_REQ( set_active_window
)
102 if ((ret
= !wine_server_call_err( req
))) previous
= reply
->previous
;
105 if (!ret
) return FALSE
;
106 if (prev
) *prev
= previous
;
107 if (previous
== hwnd
) return TRUE
;
111 /* send palette messages */
112 if (SendMessageW( hwnd
, WM_QUERYNEWPALETTE
, 0, 0 ))
113 SendMessageW( HWND_BROADCAST
, WM_PALETTEISCHANGING
, (WPARAM
)hwnd
, 0 );
115 if (!(GetWindowLongW( hwnd
, GWL_EXSTYLE
) & WS_EX_MANAGED
))
116 SetWindowPos( hwnd
, HWND_TOP
, 0, 0, 0, 0, SWP_NOSIZE
| SWP_NOMOVE
| SWP_NOACTIVATE
);
118 if (!IsWindow(hwnd
)) return FALSE
;
121 old_thread
= previous
? GetWindowThreadProcessId( previous
, NULL
) : 0;
122 new_thread
= hwnd
? GetWindowThreadProcessId( hwnd
, NULL
) : 0;
124 if (old_thread
!= new_thread
)
128 if ((list
= WIN_ListChildren( GetDesktopWindow() )))
132 for (phwnd
= list
; *phwnd
; phwnd
++)
134 if (GetWindowThreadProcessId( *phwnd
, NULL
) == old_thread
)
135 SendMessageW( *phwnd
, WM_ACTIVATEAPP
, 0, new_thread
);
140 for (phwnd
= list
; *phwnd
; phwnd
++)
142 if (GetWindowThreadProcessId( *phwnd
, NULL
) == new_thread
)
143 SendMessageW( *phwnd
, WM_ACTIVATEAPP
, 1, old_thread
);
146 HeapFree( GetProcessHeap(), 0, list
);
152 SendMessageW( hwnd
, WM_NCACTIVATE
, (hwnd
== GetForegroundWindow()), 0 );
153 SendMessageW( hwnd
, WM_ACTIVATE
,
154 MAKEWPARAM( mouse
? WA_CLICKACTIVE
: WA_ACTIVE
, IsIconic(hwnd
) ),
158 /* now change focus if necessary */
161 HWND curfocus
= GetFocus();
162 if (!curfocus
|| !hwnd
|| GetAncestor( curfocus
, GA_ROOT
) != hwnd
)
163 set_focus_window( hwnd
);
170 /*******************************************************************
171 * set_foreground_window
173 static BOOL
set_foreground_window( HWND hwnd
, BOOL mouse
)
175 BOOL ret
, send_msg_old
= FALSE
, send_msg_new
= FALSE
;
178 SERVER_START_REQ( set_foreground_window
)
181 if ((ret
= !wine_server_call_err( req
)))
183 previous
= reply
->previous
;
184 send_msg_old
= reply
->send_msg_old
;
185 send_msg_new
= reply
->send_msg_new
;
192 if (send_msg_old
) /* old window belongs to other thread */
193 SendNotifyMessageW( previous
, WM_WINE_SETACTIVEWINDOW
, 0, 0 );
194 else if (send_msg_new
) /* old window belongs to us but new one to other thread */
195 ret
= set_active_window( 0, NULL
, mouse
, TRUE
);
197 if (send_msg_new
) /* new window belongs to other thread */
198 SendNotifyMessageW( hwnd
, WM_WINE_SETACTIVEWINDOW
, (WPARAM
)hwnd
, 0 );
199 else /* new window belongs to us */
200 ret
= set_active_window( hwnd
, NULL
, mouse
, TRUE
);
206 /*******************************************************************
207 * FOCUS_MouseActivate
209 * Activate a window as a result of a mouse click
211 BOOL
FOCUS_MouseActivate( HWND hwnd
)
213 return set_foreground_window( hwnd
, TRUE
);
217 /*******************************************************************
218 * SetActiveWindow (USER32.@)
220 HWND WINAPI
SetActiveWindow( HWND hwnd
)
224 TRACE( "%p\n", hwnd
);
228 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
230 if (!(style
& WS_VISIBLE
) || (style
& (WS_POPUP
|WS_CHILD
)) == WS_CHILD
)
231 return GetActiveWindow(); /* Windows doesn't seem to return an error here */
233 hwnd
= WIN_GetFullHandle( hwnd
);
236 if (!set_active_window( hwnd
, &prev
, FALSE
, TRUE
)) return 0;
241 /*****************************************************************
242 * SetFocus (USER32.@)
244 HWND WINAPI
SetFocus( HWND hwnd
)
247 HWND previous
= GetFocus();
249 TRACE( "%p prev %p\n", hwnd
, previous
);
253 /* Check if we can set the focus to this window */
254 hwnd
= WIN_GetFullHandle( hwnd
);
255 if (hwnd
== previous
) return previous
; /* nothing to do */
259 LONG style
= GetWindowLongW( hwndTop
, GWL_STYLE
);
260 if (style
& (WS_MINIMIZE
| WS_DISABLED
)) return 0;
261 parent
= GetAncestor( hwndTop
, GA_PARENT
);
262 if (!parent
|| parent
== GetDesktopWindow()) break;
267 if (HOOK_CallHooks( WH_CBT
, HCBT_SETFOCUS
, (WPARAM
)hwnd
, (LPARAM
)previous
, TRUE
)) return 0;
269 /* activate hwndTop if needed. */
270 if (hwndTop
!= GetActiveWindow())
272 if (!set_active_window( hwndTop
, NULL
, FALSE
, FALSE
)) return 0;
273 if (!IsWindow( hwnd
)) return 0; /* Abort if window destroyed */
276 else /* NULL hwnd passed in */
278 if (!previous
) return 0; /* nothing to do */
279 if (HOOK_CallHooks( WH_CBT
, HCBT_SETFOCUS
, 0, (LPARAM
)previous
, TRUE
)) return 0;
282 /* change focus and send messages */
283 return set_focus_window( hwnd
);
287 /*******************************************************************
288 * SetForegroundWindow (USER32.@)
290 BOOL WINAPI
SetForegroundWindow( HWND hwnd
)
292 TRACE( "%p\n", hwnd
);
293 if (hwnd
) hwnd
= WIN_GetFullHandle( hwnd
);
294 return set_foreground_window( hwnd
, FALSE
);
298 /*******************************************************************
299 * GetActiveWindow (USER32.@)
301 HWND WINAPI
GetActiveWindow(void)
305 SERVER_START_REQ( get_thread_input
)
307 req
->tid
= GetCurrentThreadId();
308 if (!wine_server_call_err( req
)) ret
= reply
->active
;
315 /*****************************************************************
316 * GetFocus (USER32.@)
318 HWND WINAPI
GetFocus(void)
322 SERVER_START_REQ( get_thread_input
)
324 req
->tid
= GetCurrentThreadId();
325 if (!wine_server_call_err( req
)) ret
= reply
->focus
;
332 /*******************************************************************
333 * GetForegroundWindow (USER32.@)
335 HWND WINAPI
GetForegroundWindow(void)
339 SERVER_START_REQ( get_thread_input
)
342 if (!wine_server_call_err( req
)) ret
= reply
->foreground
;