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vbscript: Added IObjectSafety tests.
[wine.git] / server / queue.c
blob3fa546e6667992f908f1990fc11227a957100e55
1 /*
2 * Server-side message queues
3 *
4 * Copyright (C) 2000 Alexandre Julliard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22 #include "wine/port.h"
23
24 #include <assert.h>
25 #include <stdarg.h>
26 #include <stdio.h>
27 #include <stdlib.h>
28
29 #include "ntstatus.h"
30 #define WIN32_NO_STATUS
31 #include "windef.h"
32 #include "winbase.h"
33 #include "wingdi.h"
34 #include "winuser.h"
35 #include "winternl.h"
36
37 #include "handle.h"
38 #include "file.h"
39 #include "thread.h"
40 #include "process.h"
41 #include "request.h"
42 #include "user.h"
43
44 #define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
45 #define WM_NCMOUSELAST (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
46
47 enum message_kind { SEND_MESSAGE, POST_MESSAGE };
48 #define NB_MSG_KINDS (POST_MESSAGE+1)
49
50
51 struct message_result
52 {
53 struct list sender_entry; /* entry in sender list */
54 struct message *msg; /* message the result is for */
55 struct message_result *recv_next; /* next in receiver list */
56 struct msg_queue *sender; /* sender queue */
57 struct msg_queue *receiver; /* receiver queue */
58 int replied; /* has it been replied to? */
59 unsigned int error; /* error code to pass back to sender */
60 lparam_t result; /* reply result */
61 struct message *hardware_msg; /* hardware message if low-level hook result */
62 struct desktop *desktop; /* desktop for hardware message */
63 struct message *callback_msg; /* message to queue for callback */
64 void *data; /* message reply data */
65 unsigned int data_size; /* size of message reply data */
66 struct timeout_user *timeout; /* result timeout */
67 };
68
69 struct message
70 {
71 struct list entry; /* entry in message list */
72 enum message_type type; /* message type */
73 user_handle_t win; /* window handle */
74 unsigned int msg; /* message code */
75 lparam_t wparam; /* parameters */
76 lparam_t lparam; /* parameters */
77 unsigned int time; /* message time */
78 void *data; /* message data for sent messages */
79 unsigned int data_size; /* size of message data */
80 unsigned int unique_id; /* unique id for nested hw message waits */
81 struct message_result *result; /* result in sender queue */
82 };
83
84 struct timer
85 {
86 struct list entry; /* entry in timer list */
87 timeout_t when; /* next expiration */
88 unsigned int rate; /* timer rate in ms */
89 user_handle_t win; /* window handle */
90 unsigned int msg; /* message to post */
91 lparam_t id; /* timer id */
92 lparam_t lparam; /* lparam for message */
93 };
94
95 struct thread_input
96 {
97 struct object obj; /* object header */
98 struct desktop *desktop; /* desktop that this thread input belongs to */
99 user_handle_t focus; /* focus window */
100 user_handle_t capture; /* capture window */
101 user_handle_t active; /* active window */
102 user_handle_t menu_owner; /* current menu owner window */
103 user_handle_t move_size; /* current moving/resizing window */
104 user_handle_t caret; /* caret window */
105 rectangle_t caret_rect; /* caret rectangle */
106 int caret_hide; /* caret hide count */
107 int caret_state; /* caret on/off state */
108 user_handle_t cursor; /* current cursor */
109 int cursor_count; /* cursor show count */
110 struct list msg_list; /* list of hardware messages */
111 unsigned char keystate[256]; /* state of each key */
112 };
113
114 struct msg_queue
115 {
116 struct object obj; /* object header */
117 struct fd *fd; /* optional file descriptor to poll */
118 unsigned int wake_bits; /* wakeup bits */
119 unsigned int wake_mask; /* wakeup mask */
120 unsigned int changed_bits; /* changed wakeup bits */
121 unsigned int changed_mask; /* changed wakeup mask */
122 int paint_count; /* pending paint messages count */
123 int hotkey_count; /* pending hotkey messages count */
124 int quit_message; /* is there a pending quit message? */
125 int exit_code; /* exit code of pending quit message */
126 int cursor_count; /* per-queue cursor show count */
127 struct list msg_list[NB_MSG_KINDS]; /* lists of messages */
128 struct list send_result; /* stack of sent messages waiting for result */
129 struct list callback_result; /* list of callback messages waiting for result */
130 struct message_result *recv_result; /* stack of received messages waiting for result */
131 struct list pending_timers; /* list of pending timers */
132 struct list expired_timers; /* list of expired timers */
133 lparam_t next_timer_id; /* id for the next timer with a 0 window */
134 struct timeout_user *timeout; /* timeout for next timer to expire */
135 struct thread_input *input; /* thread input descriptor */
136 struct hook_table *hooks; /* hook table */
137 timeout_t last_get_msg; /* time of last get message call */
138 };
139
140 struct hotkey
141 {
142 struct list entry; /* entry in desktop hotkey list */
143 struct msg_queue *queue; /* queue owning this hotkey */
144 user_handle_t win; /* window handle */
145 int id; /* hotkey id */
146 unsigned int vkey; /* virtual key code */
147 unsigned int flags; /* key modifiers */
148 };
149
150 static void msg_queue_dump( struct object *obj, int verbose );
151 static int msg_queue_add_queue( struct object *obj, struct wait_queue_entry *entry );
152 static void msg_queue_remove_queue( struct object *obj, struct wait_queue_entry *entry );
153 static int msg_queue_signaled( struct object *obj, struct thread *thread );
154 static int msg_queue_satisfied( struct object *obj, struct thread *thread );
155 static void msg_queue_destroy( struct object *obj );
156 static void msg_queue_poll_event( struct fd *fd, int event );
157 static void thread_input_dump( struct object *obj, int verbose );
158 static void thread_input_destroy( struct object *obj );
159 static void timer_callback( void *private );
160
161 static const struct object_ops msg_queue_ops =
162 {
163 sizeof(struct msg_queue), /* size */
164 msg_queue_dump, /* dump */
165 no_get_type, /* get_type */
166 msg_queue_add_queue, /* add_queue */
167 msg_queue_remove_queue, /* remove_queue */
168 msg_queue_signaled, /* signaled */
169 msg_queue_satisfied, /* satisfied */
170 no_signal, /* signal */
171 no_get_fd, /* get_fd */
172 no_map_access, /* map_access */
173 default_get_sd, /* get_sd */
174 default_set_sd, /* set_sd */
175 no_lookup_name, /* lookup_name */
176 no_open_file, /* open_file */
177 no_close_handle, /* close_handle */
178 msg_queue_destroy /* destroy */
179 };
180
181 static const struct fd_ops msg_queue_fd_ops =
182 {
183 NULL, /* get_poll_events */
184 msg_queue_poll_event, /* poll_event */
185 NULL, /* flush */
186 NULL, /* get_fd_type */
187 NULL, /* ioctl */
188 NULL, /* queue_async */
189 NULL, /* reselect_async */
190 NULL /* cancel async */
191 };
192
193
194 static const struct object_ops thread_input_ops =
195 {
196 sizeof(struct thread_input), /* size */
197 thread_input_dump, /* dump */
198 no_get_type, /* get_type */
199 no_add_queue, /* add_queue */
200 NULL, /* remove_queue */
201 NULL, /* signaled */
202 NULL, /* satisfied */
203 no_signal, /* signal */
204 no_get_fd, /* get_fd */
205 no_map_access, /* map_access */
206 default_get_sd, /* get_sd */
207 default_set_sd, /* set_sd */
208 no_lookup_name, /* lookup_name */
209 no_open_file, /* open_file */
210 no_close_handle, /* close_handle */
211 thread_input_destroy /* destroy */
212 };
213
214 /* pointer to input structure of foreground thread */
215 static unsigned int last_input_time;
216
217 static void queue_hardware_message( struct desktop *desktop, struct message *msg, int always_queue );
218 static void free_message( struct message *msg );
219
220 /* set the caret window in a given thread input */
221 static void set_caret_window( struct thread_input *input, user_handle_t win )
222 {
223 if (!win || win != input->caret)
224 {
225 input->caret_rect.left = 0;
226 input->caret_rect.top = 0;
227 input->caret_rect.right = 0;
228 input->caret_rect.bottom = 0;
229 }
230 input->caret = win;
231 input->caret_hide = 1;
232 input->caret_state = 0;
233 }
234
235 /* create a thread input object */
236 static struct thread_input *create_thread_input( struct thread *thread )
237 {
238 struct thread_input *input;
239
240 if ((input = alloc_object( &thread_input_ops )))
241 {
242 input->focus = 0;
243 input->capture = 0;
244 input->active = 0;
245 input->menu_owner = 0;
246 input->move_size = 0;
247 input->cursor = 0;
248 input->cursor_count = 0;
249 list_init( &input->msg_list );
250 set_caret_window( input, 0 );
251 memset( input->keystate, 0, sizeof(input->keystate) );
252
253 if (!(input->desktop = get_thread_desktop( thread, 0 /* FIXME: access rights */ )))
254 {
255 release_object( input );
256 return NULL;
257 }
258 }
259 return input;
260 }
261
262 /* create a message queue object */
263 static struct msg_queue *create_msg_queue( struct thread *thread, struct thread_input *input )
264 {
265 struct thread_input *new_input = NULL;
266 struct msg_queue *queue;
267 int i;
268
269 if (!input)
270 {
271 if (!(new_input = create_thread_input( thread ))) return NULL;
272 input = new_input;
273 }
274
275 if ((queue = alloc_object( &msg_queue_ops )))
276 {
277 queue->fd = NULL;
278 queue->wake_bits = 0;
279 queue->wake_mask = 0;
280 queue->changed_bits = 0;
281 queue->changed_mask = 0;
282 queue->paint_count = 0;
283 queue->hotkey_count = 0;
284 queue->quit_message = 0;
285 queue->cursor_count = 0;
286 queue->recv_result = NULL;
287 queue->next_timer_id = 0x7fff;
288 queue->timeout = NULL;
289 queue->input = (struct thread_input *)grab_object( input );
290 queue->hooks = NULL;
291 queue->last_get_msg = current_time;
292 list_init( &queue->send_result );
293 list_init( &queue->callback_result );
294 list_init( &queue->pending_timers );
295 list_init( &queue->expired_timers );
296 for (i = 0; i < NB_MSG_KINDS; i++) list_init( &queue->msg_list[i] );
297
298 thread->queue = queue;
299 }
300 if (new_input) release_object( new_input );
301 return queue;
302 }
303
304 /* free the message queue of a thread at thread exit */
305 void free_msg_queue( struct thread *thread )
306 {
307 remove_thread_hooks( thread );
308 if (!thread->queue) return;
309 release_object( thread->queue );
310 thread->queue = NULL;
311 }
312
313 /* change the thread input data of a given thread */
314 static int assign_thread_input( struct thread *thread, struct thread_input *new_input )
315 {
316 struct msg_queue *queue = thread->queue;
317
318 if (!queue)
319 {
320 thread->queue = create_msg_queue( thread, new_input );
321 return thread->queue != NULL;
322 }
323 if (queue->input)
324 {
325 queue->input->cursor_count -= queue->cursor_count;
326 release_object( queue->input );
327 }
328 queue->input = (struct thread_input *)grab_object( new_input );
329 new_input->cursor_count += queue->cursor_count;
330 return 1;
331 }
332
333 /* set the cursor position and queue the corresponding mouse message */
334 static void set_cursor_pos( struct desktop *desktop, int x, int y )
335 {
336 struct hardware_msg_data *msg_data;
337 struct message *msg;
338
339 if (!(msg = mem_alloc( sizeof(*msg) ))) return;
340 if (!(msg_data = mem_alloc( sizeof(*msg_data) )))
341 {
342 free( msg );
343 return;
344 }
345 memset( msg_data, 0, sizeof(*msg_data) );
346
347 msg->type = MSG_HARDWARE;
348 msg->win = 0;
349 msg->msg = WM_MOUSEMOVE;
350 msg->wparam = 0;
351 msg->lparam = 0;
352 msg->time = get_tick_count();
353 msg->result = NULL;
354 msg->data = msg_data;
355 msg->data_size = sizeof(*msg_data);
356 msg_data->x = x;
357 msg_data->y = y;
358 queue_hardware_message( desktop, msg, 1 );
359 }
360
361 /* set the cursor clip rectangle */
362 static void set_clip_rectangle( struct desktop *desktop, const rectangle_t *rect )
363 {
364 rectangle_t top_rect;
365 int x, y;
366
367 get_top_window_rectangle( desktop, &top_rect );
368 if (rect)
369 {
370 rectangle_t new_rect = *rect;
371 if (new_rect.left < top_rect.left) new_rect.left = top_rect.left;
372 if (new_rect.right > top_rect.right) new_rect.right = top_rect.right;
373 if (new_rect.top < top_rect.top) new_rect.top = top_rect.top;
374 if (new_rect.bottom > top_rect.bottom) new_rect.bottom = top_rect.bottom;
375 if (new_rect.left > new_rect.right || new_rect.top > new_rect.bottom) new_rect = top_rect;
376 desktop->cursor.clip = new_rect;
377 }
378 else desktop->cursor.clip = top_rect;
379
380 if (desktop->cursor.clip_msg)
381 post_desktop_message( desktop, desktop->cursor.clip_msg, rect != NULL, 0 );
382
383 /* warp the mouse to be inside the clip rect */
384 x = min( max( desktop->cursor.x, desktop->cursor.clip.left ), desktop->cursor.clip.right-1 );
385 y = min( max( desktop->cursor.y, desktop->cursor.clip.top ), desktop->cursor.clip.bottom-1 );
386 if (x != desktop->cursor.x || y != desktop->cursor.y) set_cursor_pos( desktop, x, y );
387 }
388
389 /* change the foreground input and reset the cursor clip rect */
390 static void set_foreground_input( struct desktop *desktop, struct thread_input *input )
391 {
392 if (desktop->foreground_input == input) return;
393 set_clip_rectangle( desktop, NULL );
394 desktop->foreground_input = input;
395 }
396
397 /* get the hook table for a given thread */
398 struct hook_table *get_queue_hooks( struct thread *thread )
399 {
400 if (!thread->queue) return NULL;
401 return thread->queue->hooks;
402 }
403
404 /* set the hook table for a given thread, allocating the queue if needed */
405 void set_queue_hooks( struct thread *thread, struct hook_table *hooks )
406 {
407 struct msg_queue *queue = thread->queue;
408 if (!queue && !(queue = create_msg_queue( thread, NULL ))) return;
409 if (queue->hooks) release_object( queue->hooks );
410 queue->hooks = hooks;
411 }
412
413 /* check the queue status */
414 static inline int is_signaled( struct msg_queue *queue )
415 {
416 return ((queue->wake_bits & queue->wake_mask) || (queue->changed_bits & queue->changed_mask));
417 }
418
419 /* set some queue bits */
420 static inline void set_queue_bits( struct msg_queue *queue, unsigned int bits )
421 {
422 queue->wake_bits |= bits;
423 queue->changed_bits |= bits;
424 if (is_signaled( queue )) wake_up( &queue->obj, 0 );
425 }
426
427 /* clear some queue bits */
428 static inline void clear_queue_bits( struct msg_queue *queue, unsigned int bits )
429 {
430 queue->wake_bits &= ~bits;
431 queue->changed_bits &= ~bits;
432 }
433
434 /* check whether msg is a keyboard message */
435 static inline int is_keyboard_msg( struct message *msg )
436 {
437 return (msg->msg >= WM_KEYFIRST && msg->msg <= WM_KEYLAST);
438 }
439
440 /* check if message is matched by the filter */
441 static inline int check_msg_filter( unsigned int msg, unsigned int first, unsigned int last )
442 {
443 return (msg >= first && msg <= last);
444 }
445
446 /* check whether a message filter contains at least one potential hardware message */
447 static inline int filter_contains_hw_range( unsigned int first, unsigned int last )
448 {
449 /* hardware message ranges are (in numerical order):
450 * WM_NCMOUSEFIRST .. WM_NCMOUSELAST
451 * WM_KEYFIRST .. WM_KEYLAST
452 * WM_MOUSEFIRST .. WM_MOUSELAST
453 */
454 if (last < WM_NCMOUSEFIRST) return 0;
455 if (first > WM_NCMOUSELAST && last < WM_KEYFIRST) return 0;
456 if (first > WM_KEYLAST && last < WM_MOUSEFIRST) return 0;
457 if (first > WM_MOUSELAST) return 0;
458 return 1;
459 }
460
461 /* get the QS_* bit corresponding to a given hardware message */
462 static inline int get_hardware_msg_bit( struct message *msg )
463 {
464 if (msg->msg == WM_MOUSEMOVE || msg->msg == WM_NCMOUSEMOVE) return QS_MOUSEMOVE;
465 if (is_keyboard_msg( msg )) return QS_KEY;
466 return QS_MOUSEBUTTON;
467 }
468
469 /* get the current thread queue, creating it if needed */
470 static inline struct msg_queue *get_current_queue(void)
471 {
472 struct msg_queue *queue = current->queue;
473 if (!queue) queue = create_msg_queue( current, NULL );
474 return queue;
475 }
476
477 /* get a (pseudo-)unique id to tag hardware messages */
478 static inline unsigned int get_unique_id(void)
479 {
480 static unsigned int id;
481 if (!++id) id = 1; /* avoid an id of 0 */
482 return id;
483 }
484
485 /* try to merge a message with the last in the list; return 1 if successful */
486 static int merge_message( struct thread_input *input, const struct message *msg )
487 {
488 struct message *prev;
489 struct list *ptr;
490
491 if (msg->msg != WM_MOUSEMOVE) return 0;
492 if (!(ptr = list_tail( &input->msg_list ))) return 0;
493 prev = LIST_ENTRY( ptr, struct message, entry );
494 if (prev->result) return 0;
495 if (prev->win && msg->win && prev->win != msg->win) return 0;
496 if (prev->msg != msg->msg) return 0;
497 if (prev->type != msg->type) return 0;
498 /* now we can merge it */
499 prev->wparam = msg->wparam;
500 prev->lparam = msg->lparam;
501 prev->time = msg->time;
502 if (msg->type == MSG_HARDWARE && prev->data && msg->data)
503 {
504 struct hardware_msg_data *prev_data = prev->data;
505 struct hardware_msg_data *msg_data = msg->data;
506 prev_data->x = msg_data->x;
507 prev_data->y = msg_data->y;
508 prev_data->info = msg_data->info;
509 }
510 return 1;
511 }
512
513 /* free a result structure */
514 static void free_result( struct message_result *result )
515 {
516 if (result->timeout) remove_timeout_user( result->timeout );
517 free( result->data );
518 if (result->callback_msg) free_message( result->callback_msg );
519 if (result->hardware_msg) free_message( result->hardware_msg );
520 if (result->desktop) release_object( result->desktop );
521 free( result );
522 }
523
524 /* remove the result from the sender list it is on */
525 static inline void remove_result_from_sender( struct message_result *result )
526 {
527 assert( result->sender );
528
529 list_remove( &result->sender_entry );
530 result->sender = NULL;
531 if (!result->receiver) free_result( result );
532 }
533
534 /* store the message result in the appropriate structure */
535 static void store_message_result( struct message_result *res, lparam_t result, unsigned int error )
536 {
537 res->result = result;
538 res->error = error;
539 res->replied = 1;
540 if (res->timeout)
541 {
542 remove_timeout_user( res->timeout );
543 res->timeout = NULL;
544 }
545
546 if (res->hardware_msg)
547 {
548 if (!error && result) /* rejected by the hook */
549 free_message( res->hardware_msg );
550 else
551 queue_hardware_message( res->desktop, res->hardware_msg, 0 );
552
553 res->hardware_msg = NULL;
554 }
555
556 if (res->sender)
557 {
558 if (res->callback_msg)
559 {
560 /* queue the callback message in the sender queue */
561 struct callback_msg_data *data = res->callback_msg->data;
562 data->result = result;
563 list_add_tail( &res->sender->msg_list[SEND_MESSAGE], &res->callback_msg->entry );
564 set_queue_bits( res->sender, QS_SENDMESSAGE );
565 res->callback_msg = NULL;
566 remove_result_from_sender( res );
567 }
568 else
569 {
570 /* wake sender queue if waiting on this result */
571 if (list_head(&res->sender->send_result) == &res->sender_entry)
572 set_queue_bits( res->sender, QS_SMRESULT );
573 }
574 }
575 else if (!res->receiver) free_result( res );
576 }
577
578 /* free a message when deleting a queue or window */
579 static void free_message( struct message *msg )
580 {
581 struct message_result *result = msg->result;
582 if (result)
583 {
584 result->msg = NULL;
585 result->receiver = NULL;
586 store_message_result( result, 0, STATUS_ACCESS_DENIED /*FIXME*/ );
587 }
588 free( msg->data );
589 free( msg );
590 }
591
592 /* remove (and free) a message from a message list */
593 static void remove_queue_message( struct msg_queue *queue, struct message *msg,
594 enum message_kind kind )
595 {
596 list_remove( &msg->entry );
597 switch(kind)
598 {
599 case SEND_MESSAGE:
600 if (list_empty( &queue->msg_list[kind] )) clear_queue_bits( queue, QS_SENDMESSAGE );
601 break;
602 case POST_MESSAGE:
603 if (list_empty( &queue->msg_list[kind] ) && !queue->quit_message)
604 clear_queue_bits( queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE );
605 if (msg->msg == WM_HOTKEY && --queue->hotkey_count == 0)
606 clear_queue_bits( queue, QS_HOTKEY );
607 break;
608 }
609 free_message( msg );
610 }
611
612 /* message timed out without getting a reply */
613 static void result_timeout( void *private )
614 {
615 struct message_result *result = private;
616
617 assert( !result->replied );
618
619 result->timeout = NULL;
620
621 if (result->msg) /* not received yet */
622 {
623 struct message *msg = result->msg;
624
625 result->msg = NULL;
626 msg->result = NULL;
627 remove_queue_message( result->receiver, msg, SEND_MESSAGE );
628 result->receiver = NULL;
629 }
630 store_message_result( result, 0, STATUS_TIMEOUT );
631 }
632
633 /* allocate and fill a message result structure */
634 static struct message_result *alloc_message_result( struct msg_queue *send_queue,
635 struct msg_queue *recv_queue,
636 struct message *msg, timeout_t timeout )
637 {
638 struct message_result *result = mem_alloc( sizeof(*result) );
639 if (result)
640 {
641 result->msg = msg;
642 result->sender = send_queue;
643 result->receiver = recv_queue;
644 result->replied = 0;
645 result->data = NULL;
646 result->data_size = 0;
647 result->timeout = NULL;
648 result->hardware_msg = NULL;
649 result->desktop = NULL;
650 result->callback_msg = NULL;
651
652 if (msg->type == MSG_CALLBACK)
653 {
654 struct message *callback_msg = mem_alloc( sizeof(*callback_msg) );
655
656 if (!callback_msg)
657 {
658 free( result );
659 return NULL;
660 }
661 callback_msg->type = MSG_CALLBACK_RESULT;
662 callback_msg->win = msg->win;
663 callback_msg->msg = msg->msg;
664 callback_msg->wparam = 0;
665 callback_msg->lparam = 0;
666 callback_msg->time = get_tick_count();
667 callback_msg->result = NULL;
668 /* steal the data from the original message */
669 callback_msg->data = msg->data;
670 callback_msg->data_size = msg->data_size;
671 msg->data = NULL;
672 msg->data_size = 0;
673
674 result->callback_msg = callback_msg;
675 list_add_head( &send_queue->callback_result, &result->sender_entry );
676 }
677 else if (send_queue) list_add_head( &send_queue->send_result, &result->sender_entry );
678
679 if (timeout != TIMEOUT_INFINITE)
680 result->timeout = add_timeout_user( timeout, result_timeout, result );
681 }
682 return result;
683 }
684
685 /* receive a message, removing it from the sent queue */
686 static void receive_message( struct msg_queue *queue, struct message *msg,
687 struct get_message_reply *reply )
688 {
689 struct message_result *result = msg->result;
690
691 reply->total = msg->data_size;
692 if (msg->data_size > get_reply_max_size())
693 {
694 set_error( STATUS_BUFFER_OVERFLOW );
695 return;
696 }
697 reply->type = msg->type;
698 reply->win = msg->win;
699 reply->msg = msg->msg;
700 reply->wparam = msg->wparam;
701 reply->lparam = msg->lparam;
702 reply->time = msg->time;
703
704 if (msg->data) set_reply_data_ptr( msg->data, msg->data_size );
705
706 list_remove( &msg->entry );
707 /* put the result on the receiver result stack */
708 if (result)
709 {
710 result->msg = NULL;
711 result->recv_next = queue->recv_result;
712 queue->recv_result = result;
713 }
714 free( msg );
715 if (list_empty( &queue->msg_list[SEND_MESSAGE] )) clear_queue_bits( queue, QS_SENDMESSAGE );
716 }
717
718 /* set the result of the current received message */
719 static void reply_message( struct msg_queue *queue, lparam_t result,
720 unsigned int error, int remove, const void *data, data_size_t len )
721 {
722 struct message_result *res = queue->recv_result;
723
724 if (remove)
725 {
726 queue->recv_result = res->recv_next;
727 res->receiver = NULL;
728 if (!res->sender && !res->hardware_msg) /* no one waiting for it */
729 {
730 free_result( res );
731 return;
732 }
733 }
734 if (!res->replied)
735 {
736 if (len && (res->data = memdup( data, len ))) res->data_size = len;
737 store_message_result( res, result, error );
738 }
739 }
740
741 static int match_window( user_handle_t win, user_handle_t msg_win )
742 {
743 if (!win) return 1;
744 if (win == -1 || win == 1) return !msg_win;
745 if (msg_win == win) return 1;
746 return is_child_window( win, msg_win );
747 }
748
749 /* retrieve a posted message */
750 static int get_posted_message( struct msg_queue *queue, user_handle_t win,
751 unsigned int first, unsigned int last, unsigned int flags,
752 struct get_message_reply *reply )
753 {
754 struct message *msg;
755
756 /* check against the filters */
757 LIST_FOR_EACH_ENTRY( msg, &queue->msg_list[POST_MESSAGE], struct message, entry )
758 {
759 if (!match_window( win, msg->win )) continue;
760 if (!check_msg_filter( msg->msg, first, last )) continue;
761 goto found; /* found one */
762 }
763 return 0;
764
765 /* return it to the app */
766 found:
767 reply->total = msg->data_size;
768 if (msg->data_size > get_reply_max_size())
769 {
770 set_error( STATUS_BUFFER_OVERFLOW );
771 return 1;
772 }
773 reply->type = msg->type;
774 reply->win = msg->win;
775 reply->msg = msg->msg;
776 reply->wparam = msg->wparam;
777 reply->lparam = msg->lparam;
778 reply->time = msg->time;
779
780 if (flags & PM_REMOVE)
781 {
782 if (msg->data)
783 {
784 set_reply_data_ptr( msg->data, msg->data_size );
785 msg->data = NULL;
786 msg->data_size = 0;
787 }
788 remove_queue_message( queue, msg, POST_MESSAGE );
789 }
790 else if (msg->data) set_reply_data( msg->data, msg->data_size );
791
792 return 1;
793 }
794
795 static int get_quit_message( struct msg_queue *queue, unsigned int flags,
796 struct get_message_reply *reply )
797 {
798 if (queue->quit_message)
799 {
800 reply->total = 0;
801 reply->type = MSG_POSTED;
802 reply->win = 0;
803 reply->msg = WM_QUIT;
804 reply->wparam = queue->exit_code;
805 reply->lparam = 0;
806 reply->time = get_tick_count();
807
808 if (flags & PM_REMOVE)
809 {
810 queue->quit_message = 0;
811 if (list_empty( &queue->msg_list[POST_MESSAGE] ))
812 clear_queue_bits( queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE );
813 }
814 return 1;
815 }
816 else
817 return 0;
818 }
819
820 /* empty a message list and free all the messages */
821 static void empty_msg_list( struct list *list )
822 {
823 struct list *ptr;
824
825 while ((ptr = list_head( list )) != NULL)
826 {
827 struct message *msg = LIST_ENTRY( ptr, struct message, entry );
828 list_remove( &msg->entry );
829 free_message( msg );
830 }
831 }
832
833 /* cleanup all pending results when deleting a queue */
834 static void cleanup_results( struct msg_queue *queue )
835 {
836 struct list *entry;
837
838 while ((entry = list_head( &queue->send_result )) != NULL)
839 {
840 remove_result_from_sender( LIST_ENTRY( entry, struct message_result, sender_entry ) );
841 }
842
843 while ((entry = list_head( &queue->callback_result )) != NULL)
844 {
845 remove_result_from_sender( LIST_ENTRY( entry, struct message_result, sender_entry ) );
846 }
847
848 while (queue->recv_result)
849 reply_message( queue, 0, STATUS_ACCESS_DENIED /*FIXME*/, 1, NULL, 0 );
850 }
851
852 /* check if the thread owning the queue is hung (not checking for messages) */
853 static int is_queue_hung( struct msg_queue *queue )
854 {
855 struct wait_queue_entry *entry;
856
857 if (current_time - queue->last_get_msg <= 5 * TICKS_PER_SEC)
858 return 0; /* less than 5 seconds since last get message -> not hung */
859
860 LIST_FOR_EACH_ENTRY( entry, &queue->obj.wait_queue, struct wait_queue_entry, entry )
861 {
862 if (entry->thread->queue == queue)
863 return 0; /* thread is waiting on queue -> not hung */
864 }
865 return 1;
866 }
867
868 static int msg_queue_add_queue( struct object *obj, struct wait_queue_entry *entry )
869 {
870 struct msg_queue *queue = (struct msg_queue *)obj;
871 struct process *process = entry->thread->process;
872
873 /* a thread can only wait on its own queue */
874 if (entry->thread->queue != queue)
875 {
876 set_error( STATUS_ACCESS_DENIED );
877 return 0;
878 }
879 if (process->idle_event && !(queue->wake_mask & QS_SMRESULT)) set_event( process->idle_event );
880
881 if (queue->fd && list_empty( &obj->wait_queue )) /* first on the queue */
882 set_fd_events( queue->fd, POLLIN );
883 add_queue( obj, entry );
884 return 1;
885 }
886
887 static void msg_queue_remove_queue(struct object *obj, struct wait_queue_entry *entry )
888 {
889 struct msg_queue *queue = (struct msg_queue *)obj;
890
891 remove_queue( obj, entry );
892 if (queue->fd && list_empty( &obj->wait_queue )) /* last on the queue is gone */
893 set_fd_events( queue->fd, 0 );
894 }
895
896 static void msg_queue_dump( struct object *obj, int verbose )
897 {
898 struct msg_queue *queue = (struct msg_queue *)obj;
899 fprintf( stderr, "Msg queue bits=%x mask=%x\n",
900 queue->wake_bits, queue->wake_mask );
901 }
902
903 static int msg_queue_signaled( struct object *obj, struct thread *thread )
904 {
905 struct msg_queue *queue = (struct msg_queue *)obj;
906 int ret = 0;
907
908 if (queue->fd)
909 {
910 if ((ret = check_fd_events( queue->fd, POLLIN )))
911 /* stop waiting on select() if we are signaled */
912 set_fd_events( queue->fd, 0 );
913 else if (!list_empty( &obj->wait_queue ))
914 /* restart waiting on poll() if we are no longer signaled */
915 set_fd_events( queue->fd, POLLIN );
916 }
917 return ret || is_signaled( queue );
918 }
919
920 static int msg_queue_satisfied( struct object *obj, struct thread *thread )
921 {
922 struct msg_queue *queue = (struct msg_queue *)obj;
923 queue->wake_mask = 0;
924 queue->changed_mask = 0;
925 return 0; /* Not abandoned */
926 }
927
928 static void msg_queue_destroy( struct object *obj )
929 {
930 struct msg_queue *queue = (struct msg_queue *)obj;
931 struct list *ptr;
932 struct hotkey *hotkey, *hotkey2;
933 int i;
934
935 cleanup_results( queue );
936 for (i = 0; i < NB_MSG_KINDS; i++) empty_msg_list( &queue->msg_list[i] );
937
938 LIST_FOR_EACH_ENTRY_SAFE( hotkey, hotkey2, &queue->input->desktop->hotkeys, struct hotkey, entry )
939 {
940 if (hotkey->queue == queue)
941 {
942 list_remove( &hotkey->entry );
943 free( hotkey );
944 }
945 }
946
947 while ((ptr = list_head( &queue->pending_timers )))
948 {
949 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
950 list_remove( &timer->entry );
951 free( timer );
952 }
953 while ((ptr = list_head( &queue->expired_timers )))
954 {
955 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
956 list_remove( &timer->entry );
957 free( timer );
958 }
959 if (queue->timeout) remove_timeout_user( queue->timeout );
960 if (queue->input)
961 {
962 queue->input->cursor_count -= queue->cursor_count;
963 release_object( queue->input );
964 }
965 if (queue->hooks) release_object( queue->hooks );
966 if (queue->fd) release_object( queue->fd );
967 }
968
969 static void msg_queue_poll_event( struct fd *fd, int event )
970 {
971 struct msg_queue *queue = get_fd_user( fd );
972 assert( queue->obj.ops == &msg_queue_ops );
973
974 if (event & (POLLERR | POLLHUP)) set_fd_events( fd, -1 );
975 else set_fd_events( queue->fd, 0 );
976 wake_up( &queue->obj, 0 );
977 }
978
979 static void thread_input_dump( struct object *obj, int verbose )
980 {
981 struct thread_input *input = (struct thread_input *)obj;
982 fprintf( stderr, "Thread input focus=%08x capture=%08x active=%08x\n",
983 input->focus, input->capture, input->active );
984 }
985
986 static void thread_input_destroy( struct object *obj )
987 {
988 struct thread_input *input = (struct thread_input *)obj;
989
990 empty_msg_list( &input->msg_list );
991 if (input->desktop)
992 {
993 if (input->desktop->foreground_input == input) set_foreground_input( input->desktop, NULL );
994 release_object( input->desktop );
995 }
996 }
997
998 /* fix the thread input data when a window is destroyed */
999 static inline void thread_input_cleanup_window( struct msg_queue *queue, user_handle_t window )
1000 {
1001 struct thread_input *input = queue->input;
1002
1003 if (window == input->focus) input->focus = 0;
1004 if (window == input->capture) input->capture = 0;
1005 if (window == input->active) input->active = 0;
1006 if (window == input->menu_owner) input->menu_owner = 0;
1007 if (window == input->move_size) input->move_size = 0;
1008 if (window == input->caret) set_caret_window( input, 0 );
1009 }
1010
1011 /* check if the specified window can be set in the input data of a given queue */
1012 static int check_queue_input_window( struct msg_queue *queue, user_handle_t window )
1013 {
1014 struct thread *thread;
1015 int ret = 0;
1016
1017 if (!window) return 1; /* we can always clear the data */
1018
1019 if ((thread = get_window_thread( window )))
1020 {
1021 ret = (queue->input == thread->queue->input);
1022 if (!ret) set_error( STATUS_ACCESS_DENIED );
1023 release_object( thread );
1024 }
1025 else set_error( STATUS_INVALID_HANDLE );
1026
1027 return ret;
1028 }
1029
1030 /* make sure the specified thread has a queue */
1031 int init_thread_queue( struct thread *thread )
1032 {
1033 if (thread->queue) return 1;
1034 return (create_msg_queue( thread, NULL ) != NULL);
1035 }
1036
1037 /* attach two thread input data structures */
1038 int attach_thread_input( struct thread *thread_from, struct thread *thread_to )
1039 {
1040 struct desktop *desktop;
1041 struct thread_input *input;
1042 int ret;
1043
1044 if (!thread_to->queue && !(thread_to->queue = create_msg_queue( thread_to, NULL ))) return 0;
1045 if (!(desktop = get_thread_desktop( thread_from, 0 ))) return 0;
1046 input = (struct thread_input *)grab_object( thread_to->queue->input );
1047 if (input->desktop != desktop)
1048 {
1049 set_error( STATUS_ACCESS_DENIED );
1050 release_object( input );
1051 release_object( desktop );
1052 return 0;
1053 }
1054 release_object( desktop );
1055
1056 ret = assign_thread_input( thread_from, input );
1057 if (ret) memset( input->keystate, 0, sizeof(input->keystate) );
1058 release_object( input );
1059 return ret;
1060 }
1061
1062 /* detach two thread input data structures */
1063 void detach_thread_input( struct thread *thread_from )
1064 {
1065 struct thread_input *input;
1066
1067 if ((input = create_thread_input( thread_from )))
1068 {
1069 assign_thread_input( thread_from, input );
1070 release_object( input );
1071 }
1072 }
1073
1074
1075 /* set the next timer to expire */
1076 static void set_next_timer( struct msg_queue *queue )
1077 {
1078 struct list *ptr;
1079
1080 if (queue->timeout)
1081 {
1082 remove_timeout_user( queue->timeout );
1083 queue->timeout = NULL;
1084 }
1085 if ((ptr = list_head( &queue->pending_timers )))
1086 {
1087 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
1088 queue->timeout = add_timeout_user( timer->when, timer_callback, queue );
1089 }
1090 /* set/clear QS_TIMER bit */
1091 if (list_empty( &queue->expired_timers ))
1092 clear_queue_bits( queue, QS_TIMER );
1093 else
1094 set_queue_bits( queue, QS_TIMER );
1095 }
1096
1097 /* find a timer from its window and id */
1098 static struct timer *find_timer( struct msg_queue *queue, user_handle_t win,
1099 unsigned int msg, lparam_t id )
1100 {
1101 struct list *ptr;
1102
1103 /* we need to search both lists */
1104
1105 LIST_FOR_EACH( ptr, &queue->pending_timers )
1106 {
1107 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
1108 if (timer->win == win && timer->msg == msg && timer->id == id) return timer;
1109 }
1110 LIST_FOR_EACH( ptr, &queue->expired_timers )
1111 {
1112 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
1113 if (timer->win == win && timer->msg == msg && timer->id == id) return timer;
1114 }
1115 return NULL;
1116 }
1117
1118 /* callback for the next timer expiration */
1119 static void timer_callback( void *private )
1120 {
1121 struct msg_queue *queue = private;
1122 struct list *ptr;
1123
1124 queue->timeout = NULL;
1125 /* move on to the next timer */
1126 ptr = list_head( &queue->pending_timers );
1127 list_remove( ptr );
1128 list_add_tail( &queue->expired_timers, ptr );
1129 set_next_timer( queue );
1130 }
1131
1132 /* link a timer at its rightful place in the queue list */
1133 static void link_timer( struct msg_queue *queue, struct timer *timer )
1134 {
1135 struct list *ptr;
1136
1137 for (ptr = queue->pending_timers.next; ptr != &queue->pending_timers; ptr = ptr->next)
1138 {
1139 struct timer *t = LIST_ENTRY( ptr, struct timer, entry );
1140 if (t->when >= timer->when) break;
1141 }
1142 list_add_before( ptr, &timer->entry );
1143 }
1144
1145 /* remove a timer from the queue timer list and free it */
1146 static void free_timer( struct msg_queue *queue, struct timer *timer )
1147 {
1148 list_remove( &timer->entry );
1149 free( timer );
1150 set_next_timer( queue );
1151 }
1152
1153 /* restart an expired timer */
1154 static void restart_timer( struct msg_queue *queue, struct timer *timer )
1155 {
1156 list_remove( &timer->entry );
1157 while (timer->when <= current_time) timer->when += (timeout_t)timer->rate * 10000;
1158 link_timer( queue, timer );
1159 set_next_timer( queue );
1160 }
1161
1162 /* find an expired timer matching the filtering parameters */
1163 static struct timer *find_expired_timer( struct msg_queue *queue, user_handle_t win,
1164 unsigned int get_first, unsigned int get_last,
1165 int remove )
1166 {
1167 struct list *ptr;
1168
1169 LIST_FOR_EACH( ptr, &queue->expired_timers )
1170 {
1171 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
1172 if (win && timer->win != win) continue;
1173 if (check_msg_filter( timer->msg, get_first, get_last ))
1174 {
1175 if (remove) restart_timer( queue, timer );
1176 return timer;
1177 }
1178 }
1179 return NULL;
1180 }
1181
1182 /* add a timer */
1183 static struct timer *set_timer( struct msg_queue *queue, unsigned int rate )
1184 {
1185 struct timer *timer = mem_alloc( sizeof(*timer) );
1186 if (timer)
1187 {
1188 timer->rate = max( rate, 1 );
1189 timer->when = current_time + (timeout_t)timer->rate * 10000;
1190 link_timer( queue, timer );
1191 /* check if we replaced the next timer */
1192 if (list_head( &queue->pending_timers ) == &timer->entry) set_next_timer( queue );
1193 }
1194 return timer;
1195 }
1196
1197 /* change the input key state for a given key */
1198 static void set_input_key_state( unsigned char *keystate, unsigned char key, int down )
1199 {
1200 if (down)
1201 {
1202 if (!(keystate[key] & 0x80)) keystate[key] ^= 0x01;
1203 keystate[key] |= down;
1204 }
1205 else keystate[key] &= ~0x80;
1206 }
1207
1208 /* update the input key state for a keyboard message */
1209 static void update_input_key_state( struct desktop *desktop, unsigned char *keystate,
1210 const struct message *msg )
1211 {
1212 unsigned char key;
1213 int down = 0;
1214
1215 switch (msg->msg)
1216 {
1217 case WM_LBUTTONDOWN:
1218 down = (keystate == desktop->keystate) ? 0xc0 : 0x80;
1219 /* fall through */
1220 case WM_LBUTTONUP:
1221 set_input_key_state( keystate, VK_LBUTTON, down );
1222 break;
1223 case WM_MBUTTONDOWN:
1224 down = (keystate == desktop->keystate) ? 0xc0 : 0x80;
1225 /* fall through */
1226 case WM_MBUTTONUP:
1227 set_input_key_state( keystate, VK_MBUTTON, down );
1228 break;
1229 case WM_RBUTTONDOWN:
1230 down = (keystate == desktop->keystate) ? 0xc0 : 0x80;
1231 /* fall through */
1232 case WM_RBUTTONUP:
1233 set_input_key_state( keystate, VK_RBUTTON, down );
1234 break;
1235 case WM_XBUTTONDOWN:
1236 down = (keystate == desktop->keystate) ? 0xc0 : 0x80;
1237 /* fall through */
1238 case WM_XBUTTONUP:
1239 if (msg->wparam >> 16 == XBUTTON1) set_input_key_state( keystate, VK_XBUTTON1, down );
1240 else if (msg->wparam >> 16 == XBUTTON2) set_input_key_state( keystate, VK_XBUTTON2, down );
1241 break;
1242 case WM_KEYDOWN:
1243 case WM_SYSKEYDOWN:
1244 down = (keystate == desktop->keystate) ? 0xc0 : 0x80;
1245 /* fall through */
1246 case WM_KEYUP:
1247 case WM_SYSKEYUP:
1248 key = (unsigned char)msg->wparam;
1249 set_input_key_state( keystate, key, down );
1250 switch(key)
1251 {
1252 case VK_LCONTROL:
1253 case VK_RCONTROL:
1254 down = (keystate[VK_LCONTROL] | keystate[VK_RCONTROL]) & 0x80;
1255 set_input_key_state( keystate, VK_CONTROL, down );
1256 break;
1257 case VK_LMENU:
1258 case VK_RMENU:
1259 down = (keystate[VK_LMENU] | keystate[VK_RMENU]) & 0x80;
1260 set_input_key_state( keystate, VK_MENU, down );
1261 break;
1262 case VK_LSHIFT:
1263 case VK_RSHIFT:
1264 down = (keystate[VK_LSHIFT] | keystate[VK_RSHIFT]) & 0x80;
1265 set_input_key_state( keystate, VK_SHIFT, down );
1266 break;
1267 }
1268 break;
1269 }
1270 }
1271
1272 /* release the hardware message currently being processed by the given thread */
1273 static void release_hardware_message( struct msg_queue *queue, unsigned int hw_id,
1274 int remove, user_handle_t new_win )
1275 {
1276 struct thread_input *input = queue->input;
1277 struct message *msg;
1278
1279 LIST_FOR_EACH_ENTRY( msg, &input->msg_list, struct message, entry )
1280 {
1281 if (msg->unique_id == hw_id) break;
1282 }
1283 if (&msg->entry == &input->msg_list) return; /* not found */
1284
1285 /* clear the queue bit for that message */
1286 if (remove || new_win)
1287 {
1288 struct message *other;
1289 int clr_bit;
1290
1291 clr_bit = get_hardware_msg_bit( msg );
1292 LIST_FOR_EACH_ENTRY( other, &input->msg_list, struct message, entry )
1293 {
1294 if (other != msg && get_hardware_msg_bit( other ) == clr_bit)
1295 {
1296 clr_bit = 0;
1297 break;
1298 }
1299 }
1300 if (clr_bit) clear_queue_bits( queue, clr_bit );
1301 }
1302
1303 if (new_win) /* set the new window */
1304 {
1305 struct thread *owner = get_window_thread( new_win );
1306 if (owner)
1307 {
1308 msg->win = new_win;
1309 if (owner->queue->input != input)
1310 {
1311 list_remove( &msg->entry );
1312 if (merge_message( owner->queue->input, msg ))
1313 {
1314 free_message( msg );
1315 release_object( owner );
1316 return;
1317 }
1318 list_add_tail( &owner->queue->input->msg_list, &msg->entry );
1319 }
1320 set_queue_bits( owner->queue, get_hardware_msg_bit( msg ));
1321 remove = 0;
1322 release_object( owner );
1323 }
1324 }
1325 if (remove)
1326 {
1327 update_input_key_state( input->desktop, input->keystate, msg );
1328 list_remove( &msg->entry );
1329 free_message( msg );
1330 }
1331 }
1332
1333 static int queue_hotkey_message( struct desktop *desktop, struct message *msg )
1334 {
1335 struct hotkey *hotkey;
1336 unsigned int modifiers = 0;
1337
1338 if (msg->msg != WM_KEYDOWN) return 0;
1339
1340 if (desktop->keystate[VK_MENU] & 0x80) modifiers |= MOD_ALT;
1341 if (desktop->keystate[VK_CONTROL] & 0x80) modifiers |= MOD_CONTROL;
1342 if (desktop->keystate[VK_SHIFT] & 0x80) modifiers |= MOD_SHIFT;
1343 if ((desktop->keystate[VK_LWIN] & 0x80) || (desktop->keystate[VK_RWIN] & 0x80)) modifiers |= MOD_WIN;
1344
1345 LIST_FOR_EACH_ENTRY( hotkey, &desktop->hotkeys, struct hotkey, entry )
1346 {
1347 if (hotkey->vkey != msg->wparam) continue;
1348 if ((hotkey->flags & (MOD_ALT|MOD_CONTROL|MOD_SHIFT|MOD_WIN)) == modifiers) goto found;
1349 }
1350
1351 return 0;
1352
1353 found:
1354 msg->type = MSG_POSTED;
1355 msg->win = hotkey->win;
1356 msg->msg = WM_HOTKEY;
1357 msg->wparam = hotkey->id;
1358 msg->lparam = ((hotkey->vkey & 0xffff) << 16) | modifiers;
1359
1360 free( msg->data );
1361 msg->data = NULL;
1362 msg->data_size = 0;
1363
1364 list_add_tail( &hotkey->queue->msg_list[POST_MESSAGE], &msg->entry );
1365 set_queue_bits( hotkey->queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE|QS_HOTKEY );
1366 hotkey->queue->hotkey_count++;
1367 return 1;
1368 }
1369
1370 /* find the window that should receive a given hardware message */
1371 static user_handle_t find_hardware_message_window( struct desktop *desktop, struct thread_input *input,
1372 struct message *msg, unsigned int *msg_code )
1373 {
1374 struct hardware_msg_data *data = msg->data;
1375 user_handle_t win = 0;
1376
1377 *msg_code = msg->msg;
1378 if (is_keyboard_msg( msg ))
1379 {
1380 if (input && !(win = input->focus))
1381 {
1382 win = input->active;
1383 if (*msg_code < WM_SYSKEYDOWN) *msg_code += WM_SYSKEYDOWN - WM_KEYDOWN;
1384 }
1385 }
1386 else /* mouse message */
1387 {
1388 if (!input || !(win = input->capture))
1389 {
1390 if (!(win = msg->win) || !is_window_visible( win ) || is_window_transparent( win ))
1391 win = window_from_point( desktop, data->x, data->y );
1392 }
1393 }
1394 return win;
1395 }
1396
1397 /* queue a hardware message into a given thread input */
1398 static void queue_hardware_message( struct desktop *desktop, struct message *msg, int always_queue )
1399 {
1400 user_handle_t win;
1401 struct thread *thread;
1402 struct thread_input *input;
1403 unsigned int msg_code;
1404 struct hardware_msg_data *data = msg->data;
1405
1406 update_input_key_state( desktop, desktop->keystate, msg );
1407 last_input_time = get_tick_count();
1408 if (msg->msg != WM_MOUSEMOVE) always_queue = 1;
1409
1410 if (is_keyboard_msg( msg ))
1411 {
1412 if (queue_hotkey_message( desktop, msg )) return;
1413 if (desktop->keystate[VK_MENU] & 0x80) msg->lparam |= KF_ALTDOWN << 16;
1414 if (msg->wparam == VK_SHIFT || msg->wparam == VK_LSHIFT || msg->wparam == VK_RSHIFT)
1415 msg->lparam &= ~(KF_EXTENDED << 16);
1416 }
1417 else
1418 {
1419 if (msg->msg == WM_MOUSEMOVE)
1420 {
1421 int x = min( max( data->x, desktop->cursor.clip.left ), desktop->cursor.clip.right-1 );
1422 int y = min( max( data->y, desktop->cursor.clip.top ), desktop->cursor.clip.bottom-1 );
1423 if (desktop->cursor.x != x || desktop->cursor.y != y) always_queue = 1;
1424 desktop->cursor.x = x;
1425 desktop->cursor.y = y;
1426 desktop->cursor.last_change = get_tick_count();
1427 }
1428 if (desktop->keystate[VK_LBUTTON] & 0x80) msg->wparam |= MK_LBUTTON;
1429 if (desktop->keystate[VK_MBUTTON] & 0x80) msg->wparam |= MK_MBUTTON;
1430 if (desktop->keystate[VK_RBUTTON] & 0x80) msg->wparam |= MK_RBUTTON;
1431 if (desktop->keystate[VK_SHIFT] & 0x80) msg->wparam |= MK_SHIFT;
1432 if (desktop->keystate[VK_CONTROL] & 0x80) msg->wparam |= MK_CONTROL;
1433 if (desktop->keystate[VK_XBUTTON1] & 0x80) msg->wparam |= MK_XBUTTON1;
1434 if (desktop->keystate[VK_XBUTTON2] & 0x80) msg->wparam |= MK_XBUTTON2;
1435 }
1436 data->x = desktop->cursor.x;
1437 data->y = desktop->cursor.y;
1438
1439 if (msg->win && (thread = get_window_thread( msg->win )))
1440 {
1441 input = thread->queue->input;
1442 release_object( thread );
1443 }
1444 else input = desktop->foreground_input;
1445
1446 win = find_hardware_message_window( desktop, input, msg, &msg_code );
1447 if (!win || !(thread = get_window_thread(win)))
1448 {
1449 if (input) update_input_key_state( input->desktop, input->keystate, msg );
1450 free_message( msg );
1451 return;
1452 }
1453 input = thread->queue->input;
1454
1455 if (win != desktop->cursor.win) always_queue = 1;
1456 desktop->cursor.win = win;
1457
1458 if (!always_queue || merge_message( input, msg )) free_message( msg );
1459 else
1460 {
1461 msg->unique_id = 0; /* will be set once we return it to the app */
1462 list_add_tail( &input->msg_list, &msg->entry );
1463 set_queue_bits( thread->queue, get_hardware_msg_bit(msg) );
1464 }
1465 release_object( thread );
1466 }
1467
1468 /* send the low-level hook message for a given hardware message */
1469 static int send_hook_ll_message( struct desktop *desktop, struct message *hardware_msg,
1470 const hw_input_t *input, struct msg_queue *sender )
1471 {
1472 struct thread *hook_thread;
1473 struct msg_queue *queue;
1474 struct message *msg;
1475 timeout_t timeout = 2000 * -10000; /* FIXME: load from registry */
1476 int id = (input->type == INPUT_MOUSE) ? WH_MOUSE_LL : WH_KEYBOARD_LL;
1477
1478 if (!(hook_thread = get_first_global_hook( id ))) return 0;
1479 if (!(queue = hook_thread->queue)) return 0;
1480 if (is_queue_hung( queue )) return 0;
1481
1482 if (!(msg = mem_alloc( sizeof(*msg) ))) return 0;
1483
1484 msg->type = MSG_HOOK_LL;
1485 msg->win = 0;
1486 msg->msg = id;
1487 msg->wparam = hardware_msg->msg;
1488 msg->time = hardware_msg->time;
1489 msg->data_size = hardware_msg->data_size;
1490 msg->result = NULL;
1491
1492 if (input->type == INPUT_KEYBOARD)
1493 {
1494 unsigned short vkey = input->kbd.vkey;
1495 if (input->kbd.flags & KEYEVENTF_UNICODE) vkey = VK_PACKET;
1496 msg->lparam = (input->kbd.scan << 16) | vkey;
1497 }
1498 else msg->lparam = input->mouse.data << 16;
1499
1500 if (!(msg->data = memdup( hardware_msg->data, hardware_msg->data_size )) ||
1501 !(msg->result = alloc_message_result( sender, queue, msg, timeout )))
1502 {
1503 free_message( msg );
1504 return 0;
1505 }
1506 msg->result->hardware_msg = hardware_msg;
1507 msg->result->desktop = (struct desktop *)grab_object( desktop );
1508 list_add_tail( &queue->msg_list[SEND_MESSAGE], &msg->entry );
1509 set_queue_bits( queue, QS_SENDMESSAGE );
1510 return 1;
1511 }
1512
1513 /* queue a hardware message for a mouse event */
1514 static int queue_mouse_message( struct desktop *desktop, user_handle_t win, const hw_input_t *input,
1515 unsigned int hook_flags, struct msg_queue *sender )
1516 {
1517 struct hardware_msg_data *msg_data;
1518 struct message *msg;
1519 unsigned int i, time, flags;
1520 int wait = 0, x, y;
1521
1522 static const unsigned int messages[] =
1523 {
1524 WM_MOUSEMOVE, /* 0x0001 = MOUSEEVENTF_MOVE */
1525 WM_LBUTTONDOWN, /* 0x0002 = MOUSEEVENTF_LEFTDOWN */
1526 WM_LBUTTONUP, /* 0x0004 = MOUSEEVENTF_LEFTUP */
1527 WM_RBUTTONDOWN, /* 0x0008 = MOUSEEVENTF_RIGHTDOWN */
1528 WM_RBUTTONUP, /* 0x0010 = MOUSEEVENTF_RIGHTUP */
1529 WM_MBUTTONDOWN, /* 0x0020 = MOUSEEVENTF_MIDDLEDOWN */
1530 WM_MBUTTONUP, /* 0x0040 = MOUSEEVENTF_MIDDLEUP */
1531 WM_XBUTTONDOWN, /* 0x0080 = MOUSEEVENTF_XDOWN */
1532 WM_XBUTTONUP, /* 0x0100 = MOUSEEVENTF_XUP */
1533 0, /* 0x0200 = unused */
1534 0, /* 0x0400 = unused */
1535 WM_MOUSEWHEEL, /* 0x0800 = MOUSEEVENTF_WHEEL */
1536 WM_MOUSEHWHEEL /* 0x1000 = MOUSEEVENTF_HWHEEL */
1537 };
1538
1539 desktop->cursor.last_change = get_tick_count();
1540 flags = input->mouse.flags;
1541 time = input->mouse.time;
1542 if (!time) time = desktop->cursor.last_change;
1543
1544 if (flags & MOUSEEVENTF_MOVE)
1545 {
1546 if (flags & MOUSEEVENTF_ABSOLUTE)
1547 {
1548 x = input->mouse.x;
1549 y = input->mouse.y;
1550 if (flags & ~(MOUSEEVENTF_MOVE | MOUSEEVENTF_ABSOLUTE) &&
1551 x == desktop->cursor.x && y == desktop->cursor.y)
1552 flags &= ~MOUSEEVENTF_MOVE;
1553 }
1554 else
1555 {
1556 x = desktop->cursor.x + input->mouse.x;
1557 y = desktop->cursor.y + input->mouse.y;
1558 }
1559 }
1560 else
1561 {
1562 x = desktop->cursor.x;
1563 y = desktop->cursor.y;
1564 }
1565
1566 for (i = 0; i < sizeof(messages)/sizeof(messages[0]); i++)
1567 {
1568 if (!messages[i]) continue;
1569 if (!(flags & (1 << i))) continue;
1570 flags &= ~(1 << i);
1571
1572 if (!(msg = mem_alloc( sizeof(*msg) ))) return 0;
1573 if (!(msg_data = mem_alloc( sizeof(*msg_data) )))
1574 {
1575 free( msg );
1576 return 0;
1577 }
1578 memset( msg_data, 0, sizeof(*msg_data) );
1579
1580 msg->type = MSG_HARDWARE;
1581 msg->win = get_user_full_handle( win );
1582 msg->msg = messages[i];
1583 msg->wparam = input->mouse.data << 16;
1584 msg->lparam = 0;
1585 msg->time = time;
1586 msg->result = NULL;
1587 msg->data = msg_data;
1588 msg->data_size = sizeof(*msg_data);
1589 msg_data->x = x;
1590 msg_data->y = y;
1591 msg_data->info = input->mouse.info;
1592 if (hook_flags & SEND_HWMSG_INJECTED) msg_data->flags = LLMHF_INJECTED;
1593
1594 /* specify a sender only when sending the last message */
1595 if (!(flags & ((1 << sizeof(messages)/sizeof(messages[0])) - 1)))
1596 {
1597 if (!(wait = send_hook_ll_message( desktop, msg, input, sender )))
1598 queue_hardware_message( desktop, msg, 0 );
1599 }
1600 else if (!send_hook_ll_message( desktop, msg, input, NULL ))
1601 queue_hardware_message( desktop, msg, 0 );
1602 }
1603 return wait;
1604 }
1605
1606 /* queue a hardware message for a keyboard event */
1607 static int queue_keyboard_message( struct desktop *desktop, user_handle_t win, const hw_input_t *input,
1608 unsigned int hook_flags, struct msg_queue *sender )
1609 {
1610 struct hardware_msg_data *msg_data;
1611 struct message *msg;
1612 unsigned char vkey = input->kbd.vkey;
1613 int wait;
1614
1615 if (!(msg = mem_alloc( sizeof(*msg) ))) return 0;
1616 if (!(msg_data = mem_alloc( sizeof(*msg_data) )))
1617 {
1618 free( msg );
1619 return 0;
1620 }
1621 memset( msg_data, 0, sizeof(*msg_data) );
1622
1623 msg->type = MSG_HARDWARE;
1624 msg->win = get_user_full_handle( win );
1625 msg->lparam = (input->kbd.scan << 16) | 1u; /* repeat count */
1626 msg->time = input->kbd.time;
1627 msg->result = NULL;
1628 msg->data = msg_data;
1629 msg->data_size = sizeof(*msg_data);
1630 msg_data->info = input->kbd.info;
1631 if (!msg->time) msg->time = get_tick_count();
1632 if (hook_flags & SEND_HWMSG_INJECTED) msg_data->flags = LLKHF_INJECTED;
1633
1634 if (input->kbd.flags & KEYEVENTF_UNICODE)
1635 {
1636 msg->wparam = VK_PACKET;
1637 }
1638 else
1639 {
1640 unsigned int flags = 0;
1641 switch (vkey)
1642 {
1643 case VK_MENU:
1644 case VK_LMENU:
1645 case VK_RMENU:
1646 vkey = (input->kbd.flags & KEYEVENTF_EXTENDEDKEY) ? VK_RMENU : VK_LMENU;
1647 break;
1648 case VK_CONTROL:
1649 case VK_LCONTROL:
1650 case VK_RCONTROL:
1651 vkey = (input->kbd.flags & KEYEVENTF_EXTENDEDKEY) ? VK_RCONTROL : VK_LCONTROL;
1652 break;
1653 case VK_SHIFT:
1654 case VK_LSHIFT:
1655 case VK_RSHIFT:
1656 vkey = (input->kbd.flags & KEYEVENTF_EXTENDEDKEY) ? VK_RSHIFT : VK_LSHIFT;
1657 break;
1658 }
1659 if (input->kbd.flags & KEYEVENTF_EXTENDEDKEY) flags |= KF_EXTENDED;
1660 /* FIXME: set KF_DLGMODE and KF_MENUMODE when needed */
1661 if (input->kbd.flags & KEYEVENTF_KEYUP) flags |= KF_REPEAT | KF_UP;
1662 else if (desktop->keystate[vkey] & 0x80) flags |= KF_REPEAT;
1663
1664 msg->wparam = vkey;
1665 msg->lparam |= flags << 16;
1666 msg_data->flags |= (flags & (KF_EXTENDED | KF_ALTDOWN | KF_UP)) >> 8;
1667 }
1668
1669 msg->msg = (input->kbd.flags & KEYEVENTF_KEYUP) ? WM_KEYUP : WM_KEYDOWN;
1670
1671 switch (vkey)
1672 {
1673 case VK_LMENU:
1674 case VK_RMENU:
1675 if (input->kbd.flags & KEYEVENTF_KEYUP)
1676 {
1677 /* send WM_SYSKEYUP if Alt still pressed and no other key in between */
1678 /* we use 0x02 as a flag to track if some other SYSKEYUP was sent already */
1679 if ((desktop->keystate[VK_MENU] & 0x82) != 0x82) break;
1680 msg->msg = WM_SYSKEYUP;
1681 desktop->keystate[VK_MENU] &= ~0x02;
1682 }
1683 else
1684 {
1685 /* send WM_SYSKEYDOWN for Alt except with Ctrl */
1686 if (desktop->keystate[VK_CONTROL] & 0x80) break;
1687 msg->msg = WM_SYSKEYDOWN;
1688 desktop->keystate[VK_MENU] |= 0x02;
1689 }
1690 break;
1691
1692 case VK_LCONTROL:
1693 case VK_RCONTROL:
1694 /* send WM_SYSKEYUP on release if Alt still pressed */
1695 if (!(input->kbd.flags & KEYEVENTF_KEYUP)) break;
1696 if (!(desktop->keystate[VK_MENU] & 0x80)) break;
1697 msg->msg = WM_SYSKEYUP;
1698 desktop->keystate[VK_MENU] &= ~0x02;
1699 break;
1700
1701 default:
1702 /* send WM_SYSKEY for Alt-anykey and for F10 */
1703 if (desktop->keystate[VK_CONTROL] & 0x80) break;
1704 if (!(desktop->keystate[VK_MENU] & 0x80)) break;
1705 /* fall through */
1706 case VK_F10:
1707 msg->msg = (input->kbd.flags & KEYEVENTF_KEYUP) ? WM_SYSKEYUP : WM_SYSKEYDOWN;
1708 desktop->keystate[VK_MENU] &= ~0x02;
1709 break;
1710 }
1711 if (!(wait = send_hook_ll_message( desktop, msg, input, sender )))
1712 queue_hardware_message( desktop, msg, 1 );
1713
1714 return wait;
1715 }
1716
1717 /* queue a hardware message for a custom type of event */
1718 static void queue_custom_hardware_message( struct desktop *desktop, user_handle_t win,
1719 const hw_input_t *input )
1720 {
1721 struct hardware_msg_data *msg_data;
1722 struct message *msg;
1723
1724 if (!(msg = mem_alloc( sizeof(*msg) ))) return;
1725 if (!(msg_data = mem_alloc( sizeof(*msg_data) )))
1726 {
1727 free( msg );
1728 return;
1729 }
1730 memset( msg_data, 0, sizeof(*msg_data) );
1731
1732 msg->type = MSG_HARDWARE;
1733 msg->win = get_user_full_handle( win );
1734 msg->msg = input->hw.msg;
1735 msg->wparam = 0;
1736 msg->lparam = input->hw.lparam;
1737 msg->time = get_tick_count();
1738 msg->result = NULL;
1739 msg->data = msg_data;
1740 msg->data_size = sizeof(*msg_data);
1741
1742 queue_hardware_message( desktop, msg, 1 );
1743 }
1744
1745 /* check message filter for a hardware message */
1746 static int check_hw_message_filter( user_handle_t win, unsigned int msg_code,
1747 user_handle_t filter_win, unsigned int first, unsigned int last )
1748 {
1749 if (msg_code >= WM_KEYFIRST && msg_code <= WM_KEYLAST)
1750 {
1751 /* we can only test the window for a keyboard message since the
1752 * dest window for a mouse message depends on hittest */
1753 if (filter_win && win != filter_win && !is_child_window( filter_win, win ))
1754 return 0;
1755 /* the message code is final for a keyboard message, we can simply check it */
1756 return check_msg_filter( msg_code, first, last );
1757 }
1758 else /* mouse message */
1759 {
1760 /* we need to check all possible values that the message can have in the end */
1761
1762 if (check_msg_filter( msg_code, first, last )) return 1;
1763 if (msg_code == WM_MOUSEWHEEL) return 0; /* no other possible value for this one */
1764
1765 /* all other messages can become non-client messages */
1766 if (check_msg_filter( msg_code + (WM_NCMOUSEFIRST - WM_MOUSEFIRST), first, last )) return 1;
1767
1768 /* clicks can become double-clicks or non-client double-clicks */
1769 if (msg_code == WM_LBUTTONDOWN || msg_code == WM_MBUTTONDOWN ||
1770 msg_code == WM_RBUTTONDOWN || msg_code == WM_XBUTTONDOWN)
1771 {
1772 if (check_msg_filter( msg_code + (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN), first, last )) return 1;
1773 if (check_msg_filter( msg_code + (WM_NCLBUTTONDBLCLK - WM_LBUTTONDOWN), first, last )) return 1;
1774 }
1775 return 0;
1776 }
1777 }
1778
1779
1780 /* find a hardware message for the given queue */
1781 static int get_hardware_message( struct thread *thread, unsigned int hw_id, user_handle_t filter_win,
1782 unsigned int first, unsigned int last, struct get_message_reply *reply )
1783 {
1784 struct thread_input *input = thread->queue->input;
1785 struct thread *win_thread;
1786 struct list *ptr;
1787 user_handle_t win;
1788 int clear_bits, got_one = 0;
1789 unsigned int msg_code;
1790
1791 ptr = list_head( &input->msg_list );
1792 if (hw_id)
1793 {
1794 while (ptr)
1795 {
1796 struct message *msg = LIST_ENTRY( ptr, struct message, entry );
1797 if (msg->unique_id == hw_id) break;
1798 ptr = list_next( &input->msg_list, ptr );
1799 }
1800 if (!ptr) ptr = list_head( &input->msg_list );
1801 else ptr = list_next( &input->msg_list, ptr ); /* start from the next one */
1802 }
1803
1804 if (ptr == list_head( &input->msg_list ))
1805 clear_bits = QS_KEY | QS_MOUSEMOVE | QS_MOUSEBUTTON;
1806 else
1807 clear_bits = 0; /* don't clear bits if we don't go through the whole list */
1808
1809 while (ptr)
1810 {
1811 struct message *msg = LIST_ENTRY( ptr, struct message, entry );
1812 struct hardware_msg_data *data = msg->data;
1813
1814 ptr = list_next( &input->msg_list, ptr );
1815 win = find_hardware_message_window( input->desktop, input, msg, &msg_code );
1816 if (!win || !(win_thread = get_window_thread( win )))
1817 {
1818 /* no window at all, remove it */
1819 update_input_key_state( input->desktop, input->keystate, msg );
1820 list_remove( &msg->entry );
1821 free_message( msg );
1822 continue;
1823 }
1824 if (win_thread != thread)
1825 {
1826 if (win_thread->queue->input == input)
1827 {
1828 /* wake the other thread */
1829 set_queue_bits( win_thread->queue, get_hardware_msg_bit(msg) );
1830 got_one = 1;
1831 }
1832 else
1833 {
1834 /* for another thread input, drop it */
1835 update_input_key_state( input->desktop, input->keystate, msg );
1836 list_remove( &msg->entry );
1837 free_message( msg );
1838 }
1839 release_object( win_thread );
1840 continue;
1841 }
1842 release_object( win_thread );
1843
1844 /* if we already got a message for another thread, or if it doesn't
1845 * match the filter we skip it */
1846 if (got_one || !check_hw_message_filter( win, msg_code, filter_win, first, last ))
1847 {
1848 clear_bits &= ~get_hardware_msg_bit( msg );
1849 continue;
1850 }
1851 /* now we can return it */
1852 if (!msg->unique_id) msg->unique_id = get_unique_id();
1853 reply->type = MSG_HARDWARE;
1854 reply->win = win;
1855 reply->msg = msg_code;
1856 reply->wparam = msg->wparam;
1857 reply->lparam = msg->lparam;
1858 reply->time = msg->time;
1859
1860 data->hw_id = msg->unique_id;
1861 set_reply_data( msg->data, msg->data_size );
1862 return 1;
1863 }
1864 /* nothing found, clear the hardware queue bits */
1865 clear_queue_bits( thread->queue, clear_bits );
1866 return 0;
1867 }
1868
1869 /* increment (or decrement if 'incr' is negative) the queue paint count */
1870 void inc_queue_paint_count( struct thread *thread, int incr )
1871 {
1872 struct msg_queue *queue = thread->queue;
1873
1874 assert( queue );
1875
1876 if ((queue->paint_count += incr) < 0) queue->paint_count = 0;
1877
1878 if (queue->paint_count)
1879 set_queue_bits( queue, QS_PAINT );
1880 else
1881 clear_queue_bits( queue, QS_PAINT );
1882 }
1883
1884
1885 /* remove all messages and timers belonging to a certain window */
1886 void queue_cleanup_window( struct thread *thread, user_handle_t win )
1887 {
1888 struct msg_queue *queue = thread->queue;
1889 struct list *ptr;
1890 int i;
1891
1892 if (!queue) return;
1893
1894 /* remove timers */
1895
1896 ptr = list_head( &queue->pending_timers );
1897 while (ptr)
1898 {
1899 struct list *next = list_next( &queue->pending_timers, ptr );
1900 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
1901 if (timer->win == win) free_timer( queue, timer );
1902 ptr = next;
1903 }
1904 ptr = list_head( &queue->expired_timers );
1905 while (ptr)
1906 {
1907 struct list *next = list_next( &queue->expired_timers, ptr );
1908 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
1909 if (timer->win == win) free_timer( queue, timer );
1910 ptr = next;
1911 }
1912
1913 /* remove messages */
1914 for (i = 0; i < NB_MSG_KINDS; i++)
1915 {
1916 struct list *ptr, *next;
1917
1918 LIST_FOR_EACH_SAFE( ptr, next, &queue->msg_list[i] )
1919 {
1920 struct message *msg = LIST_ENTRY( ptr, struct message, entry );
1921 if (msg->win == win)
1922 {
1923 if (msg->msg == WM_QUIT && !queue->quit_message)
1924 {
1925 queue->quit_message = 1;
1926 queue->exit_code = msg->wparam;
1927 }
1928 remove_queue_message( queue, msg, i );
1929 }
1930 }
1931 }
1932
1933 thread_input_cleanup_window( queue, win );
1934 }
1935
1936 /* post a message to a window; used by socket handling */
1937 void post_message( user_handle_t win, unsigned int message, lparam_t wparam, lparam_t lparam )
1938 {
1939 struct message *msg;
1940 struct thread *thread = get_window_thread( win );
1941
1942 if (!thread) return;
1943
1944 if (thread->queue && (msg = mem_alloc( sizeof(*msg) )))
1945 {
1946 msg->type = MSG_POSTED;
1947 msg->win = get_user_full_handle( win );
1948 msg->msg = message;
1949 msg->wparam = wparam;
1950 msg->lparam = lparam;
1951 msg->time = get_tick_count();
1952 msg->result = NULL;
1953 msg->data = NULL;
1954 msg->data_size = 0;
1955
1956 list_add_tail( &thread->queue->msg_list[POST_MESSAGE], &msg->entry );
1957 set_queue_bits( thread->queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE );
1958 if (message == WM_HOTKEY)
1959 {
1960 set_queue_bits( thread->queue, QS_HOTKEY );
1961 thread->queue->hotkey_count++;
1962 }
1963 }
1964 release_object( thread );
1965 }
1966
1967 /* post a win event */
1968 void post_win_event( struct thread *thread, unsigned int event,
1969 user_handle_t win, unsigned int object_id,
1970 unsigned int child_id, client_ptr_t hook_proc,
1971 const WCHAR *module, data_size_t module_size,
1972 user_handle_t hook)
1973 {
1974 struct message *msg;
1975
1976 if (thread->queue && (msg = mem_alloc( sizeof(*msg) )))
1977 {
1978 struct winevent_msg_data *data;
1979
1980 msg->type = MSG_WINEVENT;
1981 msg->win = get_user_full_handle( win );
1982 msg->msg = event;
1983 msg->wparam = object_id;
1984 msg->lparam = child_id;
1985 msg->time = get_tick_count();
1986 msg->result = NULL;
1987
1988 if ((data = malloc( sizeof(*data) + module_size )))
1989 {
1990 data->hook = hook;
1991 data->tid = get_thread_id( current );
1992 data->hook_proc = hook_proc;
1993 memcpy( data + 1, module, module_size );
1994
1995 msg->data = data;
1996 msg->data_size = sizeof(*data) + module_size;
1997
1998 if (debug_level > 1)
1999 fprintf( stderr, "post_win_event: tid %04x event %04x win %08x object_id %d child_id %d\n",
2000 get_thread_id(thread), event, win, object_id, child_id );
2001 list_add_tail( &thread->queue->msg_list[SEND_MESSAGE], &msg->entry );
2002 set_queue_bits( thread->queue, QS_SENDMESSAGE );
2003 }
2004 else
2005 free( msg );
2006 }
2007 }
2008
2009 /* free all hotkeys on a desktop, optionally filtering by window */
2010 void free_hotkeys( struct desktop *desktop, user_handle_t window )
2011 {
2012 struct hotkey *hotkey, *hotkey2;
2013
2014 LIST_FOR_EACH_ENTRY_SAFE( hotkey, hotkey2, &desktop->hotkeys, struct hotkey, entry )
2015 {
2016 if (!window || hotkey->win == window)
2017 {
2018 list_remove( &hotkey->entry );
2019 free( hotkey );
2020 }
2021 }
2022 }
2023
2024
2025 /* check if the thread owning the window is hung */
2026 DECL_HANDLER(is_window_hung)
2027 {
2028 struct thread *thread;
2029
2030 thread = get_window_thread( req->win );
2031 if (thread)
2032 {
2033 reply->is_hung = is_queue_hung( thread->queue );
2034 release_object( thread );
2035 }
2036 else reply->is_hung = 0;
2037 }
2038
2039
2040 /* get the message queue of the current thread */
2041 DECL_HANDLER(get_msg_queue)
2042 {
2043 struct msg_queue *queue = get_current_queue();
2044
2045 reply->handle = 0;
2046 if (queue) reply->handle = alloc_handle( current->process, queue, SYNCHRONIZE, 0 );
2047 }
2048
2049
2050 /* set the file descriptor associated to the current thread queue */
2051 DECL_HANDLER(set_queue_fd)
2052 {
2053 struct msg_queue *queue = get_current_queue();
2054 struct file *file;
2055 int unix_fd;
2056
2057 if (queue->fd) /* fd can only be set once */
2058 {
2059 set_error( STATUS_ACCESS_DENIED );
2060 return;
2061 }
2062 if (!(file = get_file_obj( current->process, req->handle, SYNCHRONIZE ))) return;
2063
2064 if ((unix_fd = get_file_unix_fd( file )) != -1)
2065 {
2066 if ((unix_fd = dup( unix_fd )) != -1)
2067 queue->fd = create_anonymous_fd( &msg_queue_fd_ops, unix_fd, &queue->obj, 0 );
2068 else
2069 file_set_error();
2070 }
2071 release_object( file );
2072 }
2073
2074
2075 /* set the current message queue wakeup mask */
2076 DECL_HANDLER(set_queue_mask)
2077 {
2078 struct msg_queue *queue = get_current_queue();
2079
2080 if (queue)
2081 {
2082 queue->wake_mask = req->wake_mask;
2083 queue->changed_mask = req->changed_mask;
2084 reply->wake_bits = queue->wake_bits;
2085 reply->changed_bits = queue->changed_bits;
2086 if (is_signaled( queue ))
2087 {
2088 /* if skip wait is set, do what would have been done in the subsequent wait */
2089 if (req->skip_wait) msg_queue_satisfied( &queue->obj, current );
2090 else wake_up( &queue->obj, 0 );
2091 }
2092 }
2093 }
2094
2095
2096 /* get the current message queue status */
2097 DECL_HANDLER(get_queue_status)
2098 {
2099 struct msg_queue *queue = current->queue;
2100 if (queue)
2101 {
2102 reply->wake_bits = queue->wake_bits;
2103 reply->changed_bits = queue->changed_bits;
2104 if (req->clear) queue->changed_bits = 0;
2105 }
2106 else reply->wake_bits = reply->changed_bits = 0;
2107 }
2108
2109
2110 /* send a message to a thread queue */
2111 DECL_HANDLER(send_message)
2112 {
2113 struct message *msg;
2114 struct msg_queue *send_queue = get_current_queue();
2115 struct msg_queue *recv_queue = NULL;
2116 struct thread *thread = NULL;
2117
2118 if (!(thread = get_thread_from_id( req->id ))) return;
2119
2120 if (!(recv_queue = thread->queue))
2121 {
2122 set_error( STATUS_INVALID_PARAMETER );
2123 release_object( thread );
2124 return;
2125 }
2126 if ((req->flags & SEND_MSG_ABORT_IF_HUNG) && is_queue_hung(recv_queue))
2127 {
2128 set_error( STATUS_TIMEOUT );
2129 release_object( thread );
2130 return;
2131 }
2132
2133 if ((msg = mem_alloc( sizeof(*msg) )))
2134 {
2135 msg->type = req->type;
2136 msg->win = get_user_full_handle( req->win );
2137 msg->msg = req->msg;
2138 msg->wparam = req->wparam;
2139 msg->lparam = req->lparam;
2140 msg->time = get_tick_count();
2141 msg->result = NULL;
2142 msg->data = NULL;
2143 msg->data_size = get_req_data_size();
2144
2145 if (msg->data_size && !(msg->data = memdup( get_req_data(), msg->data_size )))
2146 {
2147 free( msg );
2148 release_object( thread );
2149 return;
2150 }
2151
2152 switch(msg->type)
2153 {
2154 case MSG_OTHER_PROCESS:
2155 case MSG_ASCII:
2156 case MSG_UNICODE:
2157 case MSG_CALLBACK:
2158 if (!(msg->result = alloc_message_result( send_queue, recv_queue, msg, req->timeout )))
2159 {
2160 free_message( msg );
2161 break;
2162 }
2163 /* fall through */
2164 case MSG_NOTIFY:
2165 list_add_tail( &recv_queue->msg_list[SEND_MESSAGE], &msg->entry );
2166 set_queue_bits( recv_queue, QS_SENDMESSAGE );
2167 break;
2168 case MSG_POSTED:
2169 list_add_tail( &recv_queue->msg_list[POST_MESSAGE], &msg->entry );
2170 set_queue_bits( recv_queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE );
2171 if (msg->msg == WM_HOTKEY)
2172 {
2173 set_queue_bits( recv_queue, QS_HOTKEY );
2174 recv_queue->hotkey_count++;
2175 }
2176 break;
2177 case MSG_HARDWARE: /* should use send_hardware_message instead */
2178 case MSG_CALLBACK_RESULT: /* cannot send this one */
2179 case MSG_HOOK_LL: /* generated internally */
2180 default:
2181 set_error( STATUS_INVALID_PARAMETER );
2182 free( msg );
2183 break;
2184 }
2185 }
2186 release_object( thread );
2187 }
2188
2189 /* send a hardware message to a thread queue */
2190 DECL_HANDLER(send_hardware_message)
2191 {
2192 struct thread *thread = NULL;
2193 struct desktop *desktop;
2194 struct msg_queue *sender = get_current_queue();
2195
2196 if (req->win)
2197 {
2198 if (!(thread = get_window_thread( req->win ))) return;
2199 desktop = (struct desktop *)grab_object( thread->queue->input->desktop );
2200 }
2201 else if (!(desktop = get_thread_desktop( current, 0 ))) return;
2202
2203 switch (req->input.type)
2204 {
2205 case INPUT_MOUSE:
2206 reply->wait = queue_mouse_message( desktop, req->win, &req->input, req->flags, sender );
2207 break;
2208 case INPUT_KEYBOARD:
2209 reply->wait = queue_keyboard_message( desktop, req->win, &req->input, req->flags, sender );
2210 break;
2211 case INPUT_HARDWARE:
2212 queue_custom_hardware_message( desktop, req->win, &req->input );
2213 break;
2214 default:
2215 set_error( STATUS_INVALID_PARAMETER );
2216 }
2217 if (thread) release_object( thread );
2218 release_object( desktop );
2219 }
2220
2221 /* post a quit message to the current queue */
2222 DECL_HANDLER(post_quit_message)
2223 {
2224 struct msg_queue *queue = get_current_queue();
2225
2226 if (!queue)
2227 return;
2228
2229 queue->quit_message = 1;
2230 queue->exit_code = req->exit_code;
2231 set_queue_bits( queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE );
2232 }
2233
2234 /* get a message from the current queue */
2235 DECL_HANDLER(get_message)
2236 {
2237 struct timer *timer;
2238 struct list *ptr;
2239 struct msg_queue *queue = get_current_queue();
2240 user_handle_t get_win = get_user_full_handle( req->get_win );
2241 unsigned int filter = req->flags >> 16;
2242
2243 reply->active_hooks = get_active_hooks();
2244
2245 if (!queue) return;
2246 queue->last_get_msg = current_time;
2247 if (!filter) filter = QS_ALLINPUT;
2248
2249 /* first check for sent messages */
2250 if ((ptr = list_head( &queue->msg_list[SEND_MESSAGE] )))
2251 {
2252 struct message *msg = LIST_ENTRY( ptr, struct message, entry );
2253 receive_message( queue, msg, reply );
2254 return;
2255 }
2256
2257 /* clear changed bits so we can wait on them if we don't find a message */
2258 if (filter & QS_POSTMESSAGE)
2259 {
2260 queue->changed_bits &= ~(QS_POSTMESSAGE | QS_HOTKEY | QS_TIMER);
2261 if (req->get_first == 0 && req->get_last == ~0U) queue->changed_bits &= ~QS_ALLPOSTMESSAGE;
2262 }
2263 if (filter & QS_INPUT) queue->changed_bits &= ~QS_INPUT;
2264 if (filter & QS_PAINT) queue->changed_bits &= ~QS_PAINT;
2265
2266 /* then check for posted messages */
2267 if ((filter & QS_POSTMESSAGE) &&
2268 get_posted_message( queue, get_win, req->get_first, req->get_last, req->flags, reply ))
2269 return;
2270
2271 if ((filter & QS_HOTKEY) && queue->hotkey_count &&
2272 req->get_first <= WM_HOTKEY && req->get_last >= WM_HOTKEY &&
2273 get_posted_message( queue, get_win, WM_HOTKEY, WM_HOTKEY, req->flags, reply ))
2274 return;
2275
2276 /* only check for quit messages if not posted messages pending.
2277 * note: the quit message isn't filtered */
2278 if (get_quit_message( queue, req->flags, reply ))
2279 return;
2280
2281 /* then check for any raw hardware message */
2282 if ((filter & QS_INPUT) &&
2283 filter_contains_hw_range( req->get_first, req->get_last ) &&
2284 get_hardware_message( current, req->hw_id, get_win, req->get_first, req->get_last, reply ))
2285 return;
2286
2287 /* now check for WM_PAINT */
2288 if ((filter & QS_PAINT) &&
2289 queue->paint_count &&
2290 check_msg_filter( WM_PAINT, req->get_first, req->get_last ) &&
2291 (reply->win = find_window_to_repaint( get_win, current )))
2292 {
2293 reply->type = MSG_POSTED;
2294 reply->msg = WM_PAINT;
2295 reply->wparam = 0;
2296 reply->lparam = 0;
2297 reply->time = get_tick_count();
2298 return;
2299 }
2300
2301 /* now check for timer */
2302 if ((filter & QS_TIMER) &&
2303 (timer = find_expired_timer( queue, get_win, req->get_first,
2304 req->get_last, (req->flags & PM_REMOVE) )))
2305 {
2306 reply->type = MSG_POSTED;
2307 reply->win = timer->win;
2308 reply->msg = timer->msg;
2309 reply->wparam = timer->id;
2310 reply->lparam = timer->lparam;
2311 reply->time = get_tick_count();
2312 if (!(req->flags & PM_NOYIELD) && current->process->idle_event)
2313 set_event( current->process->idle_event );
2314 return;
2315 }
2316
2317 if (get_win == -1 && current->process->idle_event) set_event( current->process->idle_event );
2318 queue->wake_mask = req->wake_mask;
2319 queue->changed_mask = req->changed_mask;
2320 set_error( STATUS_PENDING ); /* FIXME */
2321 }
2322
2323
2324 /* reply to a sent message */
2325 DECL_HANDLER(reply_message)
2326 {
2327 if (!current->queue) set_error( STATUS_ACCESS_DENIED );
2328 else if (current->queue->recv_result)
2329 reply_message( current->queue, req->result, 0, req->remove,
2330 get_req_data(), get_req_data_size() );
2331 }
2332
2333
2334 /* accept the current hardware message */
2335 DECL_HANDLER(accept_hardware_message)
2336 {
2337 if (current->queue)
2338 release_hardware_message( current->queue, req->hw_id, req->remove, req->new_win );
2339 else
2340 set_error( STATUS_ACCESS_DENIED );
2341 }
2342
2343
2344 /* retrieve the reply for the last message sent */
2345 DECL_HANDLER(get_message_reply)
2346 {
2347 struct message_result *result;
2348 struct list *entry;
2349 struct msg_queue *queue = current->queue;
2350
2351 if (queue)
2352 {
2353 set_error( STATUS_PENDING );
2354 reply->result = 0;
2355
2356 if (!(entry = list_head( &queue->send_result ))) return; /* no reply ready */
2357
2358 result = LIST_ENTRY( entry, struct message_result, sender_entry );
2359 if (result->replied || req->cancel)
2360 {
2361 if (result->replied)
2362 {
2363 reply->result = result->result;
2364 set_error( result->error );
2365 if (result->data)
2366 {
2367 data_size_t data_len = min( result->data_size, get_reply_max_size() );
2368 set_reply_data_ptr( result->data, data_len );
2369 result->data = NULL;
2370 result->data_size = 0;
2371 }
2372 }
2373 remove_result_from_sender( result );
2374
2375 entry = list_head( &queue->send_result );
2376 if (!entry) clear_queue_bits( queue, QS_SMRESULT );
2377 else
2378 {
2379 result = LIST_ENTRY( entry, struct message_result, sender_entry );
2380 if (!result->replied) clear_queue_bits( queue, QS_SMRESULT );
2381 }
2382 }
2383 }
2384 else set_error( STATUS_ACCESS_DENIED );
2385 }
2386
2387
2388 /* set a window timer */
2389 DECL_HANDLER(set_win_timer)
2390 {
2391 struct timer *timer;
2392 struct msg_queue *queue;
2393 struct thread *thread = NULL;
2394 user_handle_t win = 0;
2395 lparam_t id = req->id;
2396
2397 if (req->win)
2398 {
2399 if (!(win = get_user_full_handle( req->win )) || !(thread = get_window_thread( win )))
2400 {
2401 set_error( STATUS_INVALID_HANDLE );
2402 return;
2403 }
2404 if (thread->process != current->process)
2405 {
2406 release_object( thread );
2407 set_error( STATUS_ACCESS_DENIED );
2408 return;
2409 }
2410 queue = thread->queue;
2411 /* remove it if it existed already */
2412 if ((timer = find_timer( queue, win, req->msg, id ))) free_timer( queue, timer );
2413 }
2414 else
2415 {
2416 queue = get_current_queue();
2417 /* look for a timer with this id */
2418 if (id && (timer = find_timer( queue, 0, req->msg, id )))
2419 {
2420 /* free and reuse id */
2421 free_timer( queue, timer );
2422 }
2423 else
2424 {
2425 /* find a free id for it */
2426 do
2427 {
2428 id = queue->next_timer_id;
2429 if (--queue->next_timer_id <= 0x100) queue->next_timer_id = 0x7fff;
2430 }
2431 while (find_timer( queue, 0, req->msg, id ));
2432 }
2433 }
2434
2435 if ((timer = set_timer( queue, req->rate )))
2436 {
2437 timer->win = win;
2438 timer->msg = req->msg;
2439 timer->id = id;
2440 timer->lparam = req->lparam;
2441 reply->id = id;
2442 }
2443 if (thread) release_object( thread );
2444 }
2445
2446 /* kill a window timer */
2447 DECL_HANDLER(kill_win_timer)
2448 {
2449 struct timer *timer;
2450 struct thread *thread;
2451 user_handle_t win = 0;
2452
2453 if (req->win)
2454 {
2455 if (!(win = get_user_full_handle( req->win )) || !(thread = get_window_thread( win )))
2456 {
2457 set_error( STATUS_INVALID_HANDLE );
2458 return;
2459 }
2460 if (thread->process != current->process)
2461 {
2462 release_object( thread );
2463 set_error( STATUS_ACCESS_DENIED );
2464 return;
2465 }
2466 }
2467 else thread = (struct thread *)grab_object( current );
2468
2469 if (thread->queue && (timer = find_timer( thread->queue, win, req->msg, req->id )))
2470 free_timer( thread->queue, timer );
2471 else
2472 set_error( STATUS_INVALID_PARAMETER );
2473
2474 release_object( thread );
2475 }
2476
2477 DECL_HANDLER(register_hotkey)
2478 {
2479 struct desktop *desktop;
2480 user_handle_t win_handle = req->window;
2481 struct hotkey *hotkey;
2482 struct hotkey *new_hotkey = NULL;
2483 struct thread *thread;
2484 const int modifier_flags = MOD_ALT|MOD_CONTROL|MOD_SHIFT|MOD_WIN;
2485
2486 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2487
2488 if (win_handle)
2489 {
2490 if (!get_user_object_handle( &win_handle, USER_WINDOW ))
2491 {
2492 release_object( desktop );
2493 set_win32_error( ERROR_INVALID_WINDOW_HANDLE );
2494 return;
2495 }
2496
2497 thread = get_window_thread( win_handle );
2498 if (thread) release_object( thread );
2499
2500 if (thread != current)
2501 {
2502 release_object( desktop );
2503 set_win32_error( ERROR_WINDOW_OF_OTHER_THREAD );
2504 return;
2505 }
2506 }
2507
2508 LIST_FOR_EACH_ENTRY( hotkey, &desktop->hotkeys, struct hotkey, entry )
2509 {
2510 if (req->vkey == hotkey->vkey &&
2511 (req->flags & modifier_flags) == (hotkey->flags & modifier_flags))
2512 {
2513 release_object( desktop );
2514 set_win32_error( ERROR_HOTKEY_ALREADY_REGISTERED );
2515 return;
2516 }
2517 if (current->queue == hotkey->queue && win_handle == hotkey->win && req->id == hotkey->id)
2518 new_hotkey = hotkey;
2519 }
2520
2521 if (new_hotkey)
2522 {
2523 reply->replaced = 1;
2524 reply->flags = new_hotkey->flags;
2525 reply->vkey = new_hotkey->vkey;
2526 }
2527 else
2528 {
2529 new_hotkey = mem_alloc( sizeof(*new_hotkey) );
2530 if (new_hotkey)
2531 {
2532 list_add_tail( &desktop->hotkeys, &new_hotkey->entry );
2533 new_hotkey->queue = current->queue;
2534 new_hotkey->win = win_handle;
2535 new_hotkey->id = req->id;
2536 }
2537 }
2538
2539 if (new_hotkey)
2540 {
2541 new_hotkey->flags = req->flags;
2542 new_hotkey->vkey = req->vkey;
2543 }
2544
2545 release_object( desktop );
2546 }
2547
2548 DECL_HANDLER(unregister_hotkey)
2549 {
2550 struct desktop *desktop;
2551 user_handle_t win_handle = req->window;
2552 struct hotkey *hotkey;
2553 struct thread *thread;
2554
2555 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2556
2557 if (win_handle)
2558 {
2559 if (!get_user_object_handle( &win_handle, USER_WINDOW ))
2560 {
2561 release_object( desktop );
2562 set_win32_error( ERROR_INVALID_WINDOW_HANDLE );
2563 return;
2564 }
2565
2566 thread = get_window_thread( win_handle );
2567 if (thread) release_object( thread );
2568
2569 if (thread != current)
2570 {
2571 release_object( desktop );
2572 set_win32_error( ERROR_WINDOW_OF_OTHER_THREAD );
2573 return;
2574 }
2575 }
2576
2577 LIST_FOR_EACH_ENTRY( hotkey, &desktop->hotkeys, struct hotkey, entry )
2578 {
2579 if (current->queue == hotkey->queue && win_handle == hotkey->win && req->id == hotkey->id)
2580 goto found;
2581 }
2582
2583 release_object( desktop );
2584 set_win32_error( ERROR_HOTKEY_NOT_REGISTERED );
2585 return;
2586
2587 found:
2588 reply->flags = hotkey->flags;
2589 reply->vkey = hotkey->vkey;
2590 list_remove( &hotkey->entry );
2591 free( hotkey );
2592 release_object( desktop );
2593 }
2594
2595 /* attach (or detach) thread inputs */
2596 DECL_HANDLER(attach_thread_input)
2597 {
2598 struct thread *thread_from = get_thread_from_id( req->tid_from );
2599 struct thread *thread_to = get_thread_from_id( req->tid_to );
2600
2601 if (!thread_from || !thread_to)
2602 {
2603 if (thread_from) release_object( thread_from );
2604 if (thread_to) release_object( thread_to );
2605 return;
2606 }
2607 if (thread_from != thread_to)
2608 {
2609 if (req->attach) attach_thread_input( thread_from, thread_to );
2610 else
2611 {
2612 if (thread_from->queue && thread_to->queue &&
2613 thread_from->queue->input == thread_to->queue->input)
2614 detach_thread_input( thread_from );
2615 else
2616 set_error( STATUS_ACCESS_DENIED );
2617 }
2618 }
2619 else set_error( STATUS_ACCESS_DENIED );
2620 release_object( thread_from );
2621 release_object( thread_to );
2622 }
2623
2624
2625 /* get thread input data */
2626 DECL_HANDLER(get_thread_input)
2627 {
2628 struct thread *thread = NULL;
2629 struct desktop *desktop;
2630 struct thread_input *input;
2631
2632 if (req->tid)
2633 {
2634 if (!(thread = get_thread_from_id( req->tid ))) return;
2635 if (!(desktop = get_thread_desktop( thread, 0 )))
2636 {
2637 release_object( thread );
2638 return;
2639 }
2640 input = thread->queue ? thread->queue->input : NULL;
2641 }
2642 else
2643 {
2644 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2645 input = desktop->foreground_input; /* get the foreground thread info */
2646 }
2647
2648 if (input)
2649 {
2650 reply->focus = input->focus;
2651 reply->capture = input->capture;
2652 reply->active = input->active;
2653 reply->menu_owner = input->menu_owner;
2654 reply->move_size = input->move_size;
2655 reply->caret = input->caret;
2656 reply->cursor = input->cursor;
2657 reply->show_count = input->cursor_count;
2658 reply->rect = input->caret_rect;
2659 }
2660
2661 /* foreground window is active window of foreground thread */
2662 reply->foreground = desktop->foreground_input ? desktop->foreground_input->active : 0;
2663 if (thread) release_object( thread );
2664 release_object( desktop );
2665 }
2666
2667
2668 /* retrieve queue keyboard state for a given thread */
2669 DECL_HANDLER(get_key_state)
2670 {
2671 struct thread *thread;
2672 struct desktop *desktop;
2673 data_size_t size = min( 256, get_reply_max_size() );
2674
2675 if (!req->tid) /* get global async key state */
2676 {
2677 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2678 if (req->key >= 0)
2679 {
2680 reply->state = desktop->keystate[req->key & 0xff];
2681 desktop->keystate[req->key & 0xff] &= ~0x40;
2682 }
2683 set_reply_data( desktop->keystate, size );
2684 release_object( desktop );
2685 }
2686 else
2687 {
2688 if (!(thread = get_thread_from_id( req->tid ))) return;
2689 if (thread->queue)
2690 {
2691 if (req->key >= 0) reply->state = thread->queue->input->keystate[req->key & 0xff];
2692 set_reply_data( thread->queue->input->keystate, size );
2693 }
2694 release_object( thread );
2695 }
2696 }
2697
2698
2699 /* set queue keyboard state for a given thread */
2700 DECL_HANDLER(set_key_state)
2701 {
2702 struct thread *thread;
2703 struct desktop *desktop;
2704 data_size_t size = min( 256, get_req_data_size() );
2705
2706 if (!req->tid) /* set global async key state */
2707 {
2708 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2709 memcpy( desktop->keystate, get_req_data(), size );
2710 release_object( desktop );
2711 }
2712 else
2713 {
2714 if (!(thread = get_thread_from_id( req->tid ))) return;
2715 if (thread->queue) memcpy( thread->queue->input->keystate, get_req_data(), size );
2716 release_object( thread );
2717 }
2718 }
2719
2720
2721 /* set the system foreground window */
2722 DECL_HANDLER(set_foreground_window)
2723 {
2724 struct thread *thread = NULL;
2725 struct desktop *desktop;
2726 struct msg_queue *queue = get_current_queue();
2727
2728 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2729 reply->previous = desktop->foreground_input ? desktop->foreground_input->active : 0;
2730 reply->send_msg_old = (reply->previous && desktop->foreground_input != queue->input);
2731 reply->send_msg_new = FALSE;
2732
2733 if (is_top_level_window( req->handle ) &&
2734 ((thread = get_window_thread( req->handle ))) &&
2735 (thread->queue->input->desktop == desktop))
2736 {
2737 set_foreground_input( desktop, thread->queue->input );
2738 reply->send_msg_new = (desktop->foreground_input != queue->input);
2739 }
2740 else set_win32_error( ERROR_INVALID_WINDOW_HANDLE );
2741
2742 if (thread) release_object( thread );
2743 release_object( desktop );
2744 }
2745
2746
2747 /* set the current thread focus window */
2748 DECL_HANDLER(set_focus_window)
2749 {
2750 struct msg_queue *queue = get_current_queue();
2751
2752 reply->previous = 0;
2753 if (queue && check_queue_input_window( queue, req->handle ))
2754 {
2755 reply->previous = queue->input->focus;
2756 queue->input->focus = get_user_full_handle( req->handle );
2757 }
2758 }
2759
2760
2761 /* set the current thread active window */
2762 DECL_HANDLER(set_active_window)
2763 {
2764 struct msg_queue *queue = get_current_queue();
2765
2766 reply->previous = 0;
2767 if (queue && check_queue_input_window( queue, req->handle ))
2768 {
2769 if (!req->handle || make_window_active( req->handle ))
2770 {
2771 reply->previous = queue->input->active;
2772 queue->input->active = get_user_full_handle( req->handle );
2773 }
2774 else set_error( STATUS_INVALID_HANDLE );
2775 }
2776 }
2777
2778
2779 /* set the current thread capture window */
2780 DECL_HANDLER(set_capture_window)
2781 {
2782 struct msg_queue *queue = get_current_queue();
2783
2784 reply->previous = reply->full_handle = 0;
2785 if (queue && check_queue_input_window( queue, req->handle ))
2786 {
2787 struct thread_input *input = queue->input;
2788
2789 /* if in menu mode, reject all requests to change focus, except if the menu bit is set */
2790 if (input->menu_owner && !(req->flags & CAPTURE_MENU))
2791 {
2792 set_error(STATUS_ACCESS_DENIED);
2793 return;
2794 }
2795 reply->previous = input->capture;
2796 input->capture = get_user_full_handle( req->handle );
2797 input->menu_owner = (req->flags & CAPTURE_MENU) ? input->capture : 0;
2798 input->move_size = (req->flags & CAPTURE_MOVESIZE) ? input->capture : 0;
2799 reply->full_handle = input->capture;
2800 }
2801 }
2802
2803
2804 /* Set the current thread caret window */
2805 DECL_HANDLER(set_caret_window)
2806 {
2807 struct msg_queue *queue = get_current_queue();
2808
2809 reply->previous = 0;
2810 if (queue && check_queue_input_window( queue, req->handle ))
2811 {
2812 struct thread_input *input = queue->input;
2813
2814 reply->previous = input->caret;
2815 reply->old_rect = input->caret_rect;
2816 reply->old_hide = input->caret_hide;
2817 reply->old_state = input->caret_state;
2818
2819 set_caret_window( input, get_user_full_handle(req->handle) );
2820 input->caret_rect.right = input->caret_rect.left + req->width;
2821 input->caret_rect.bottom = input->caret_rect.top + req->height;
2822 }
2823 }
2824
2825
2826 /* Set the current thread caret information */
2827 DECL_HANDLER(set_caret_info)
2828 {
2829 struct msg_queue *queue = get_current_queue();
2830 struct thread_input *input;
2831
2832 if (!queue) return;
2833 input = queue->input;
2834 reply->full_handle = input->caret;
2835 reply->old_rect = input->caret_rect;
2836 reply->old_hide = input->caret_hide;
2837 reply->old_state = input->caret_state;
2838
2839 if (req->handle && get_user_full_handle(req->handle) != input->caret)
2840 {
2841 set_error( STATUS_ACCESS_DENIED );
2842 return;
2843 }
2844 if (req->flags & SET_CARET_POS)
2845 {
2846 input->caret_rect.right += req->x - input->caret_rect.left;
2847 input->caret_rect.bottom += req->y - input->caret_rect.top;
2848 input->caret_rect.left = req->x;
2849 input->caret_rect.top = req->y;
2850 }
2851 if (req->flags & SET_CARET_HIDE)
2852 {
2853 input->caret_hide += req->hide;
2854 if (input->caret_hide < 0) input->caret_hide = 0;
2855 }
2856 if (req->flags & SET_CARET_STATE)
2857 {
2858 if (req->state == -1) input->caret_state = !input->caret_state;
2859 else input->caret_state = !!req->state;
2860 }
2861 }
2862
2863
2864 /* get the time of the last input event */
2865 DECL_HANDLER(get_last_input_time)
2866 {
2867 reply->time = last_input_time;
2868 }
2869
2870 /* set/get the current cursor */
2871 DECL_HANDLER(set_cursor)
2872 {
2873 struct msg_queue *queue = get_current_queue();
2874 struct thread_input *input;
2875
2876 if (!queue) return;
2877 input = queue->input;
2878
2879 reply->prev_handle = input->cursor;
2880 reply->prev_count = input->cursor_count;
2881 reply->prev_x = input->desktop->cursor.x;
2882 reply->prev_y = input->desktop->cursor.y;
2883
2884 if (req->flags & SET_CURSOR_HANDLE)
2885 {
2886 if (req->handle && !get_user_object( req->handle, USER_CLIENT ))
2887 {
2888 set_win32_error( ERROR_INVALID_CURSOR_HANDLE );
2889 return;
2890 }
2891 input->cursor = req->handle;
2892 }
2893 if (req->flags & SET_CURSOR_COUNT)
2894 {
2895 queue->cursor_count += req->show_count;
2896 input->cursor_count += req->show_count;
2897 }
2898 if (req->flags & SET_CURSOR_POS)
2899 {
2900 set_cursor_pos( input->desktop, req->x, req->y );
2901 }
2902 if (req->flags & (SET_CURSOR_CLIP | SET_CURSOR_NOCLIP))
2903 {
2904 struct desktop *desktop = input->desktop;
2905
2906 /* only the desktop owner can set the message */
2907 if (req->clip_msg && get_top_window_owner(desktop) == current->process)
2908 desktop->cursor.clip_msg = req->clip_msg;
2909
2910 set_clip_rectangle( desktop, (req->flags & SET_CURSOR_NOCLIP) ? NULL : &req->clip );
2911 }
2912
2913 reply->new_x = input->desktop->cursor.x;
2914 reply->new_y = input->desktop->cursor.y;
2915 reply->new_clip = input->desktop->cursor.clip;
2916 reply->last_change = input->desktop->cursor.last_change;
2917 }
Windows API implementation