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kernel32/tests: Fix 32-bit thread test failures on NT 5.x 64bit.
[wine.git] / server / queue.c
blob7aa9b149ded6ab44aef100db906e2c1119cb6f2d
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_INPUT_DEVICE_CHANGE .. WM_KEYLAST
452 * WM_MOUSEFIRST .. WM_MOUSELAST
453 */
454 if (last < WM_NCMOUSEFIRST) return 0;
455 if (first > WM_NCMOUSELAST && last < WM_INPUT_DEVICE_CHANGE) 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_INPUT_DEVICE_CHANGE || msg->msg == WM_INPUT) return QS_RAWINPUT;
465 if (msg->msg == WM_MOUSEMOVE || msg->msg == WM_NCMOUSEMOVE) return QS_MOUSEMOVE;
466 if (is_keyboard_msg( msg )) return QS_KEY;
467 return QS_MOUSEBUTTON;
468 }
469
470 /* get the current thread queue, creating it if needed */
471 static inline struct msg_queue *get_current_queue(void)
472 {
473 struct msg_queue *queue = current->queue;
474 if (!queue) queue = create_msg_queue( current, NULL );
475 return queue;
476 }
477
478 /* get a (pseudo-)unique id to tag hardware messages */
479 static inline unsigned int get_unique_id(void)
480 {
481 static unsigned int id;
482 if (!++id) id = 1; /* avoid an id of 0 */
483 return id;
484 }
485
486 /* try to merge a message with the last in the list; return 1 if successful */
487 static int merge_message( struct thread_input *input, const struct message *msg )
488 {
489 struct message *prev;
490 struct list *ptr;
491
492 if (msg->msg != WM_MOUSEMOVE) return 0;
493 for (ptr = list_tail( &input->msg_list ); ptr; ptr = list_prev( &input->msg_list, ptr ))
494 {
495 prev = LIST_ENTRY( ptr, struct message, entry );
496 if (prev->msg != WM_INPUT) break;
497 }
498 if (!ptr) return 0;
499 if (prev->result) return 0;
500 if (prev->win && msg->win && prev->win != msg->win) return 0;
501 if (prev->msg != msg->msg) return 0;
502 if (prev->type != msg->type) return 0;
503 /* now we can merge it */
504 prev->wparam = msg->wparam;
505 prev->lparam = msg->lparam;
506 prev->time = msg->time;
507 if (msg->type == MSG_HARDWARE && prev->data && msg->data)
508 {
509 struct hardware_msg_data *prev_data = prev->data;
510 struct hardware_msg_data *msg_data = msg->data;
511 prev_data->x = msg_data->x;
512 prev_data->y = msg_data->y;
513 prev_data->info = msg_data->info;
514 }
515 list_remove( ptr );
516 list_add_tail( &input->msg_list, ptr );
517 return 1;
518 }
519
520 /* free a result structure */
521 static void free_result( struct message_result *result )
522 {
523 if (result->timeout) remove_timeout_user( result->timeout );
524 free( result->data );
525 if (result->callback_msg) free_message( result->callback_msg );
526 if (result->hardware_msg) free_message( result->hardware_msg );
527 if (result->desktop) release_object( result->desktop );
528 free( result );
529 }
530
531 /* remove the result from the sender list it is on */
532 static inline void remove_result_from_sender( struct message_result *result )
533 {
534 assert( result->sender );
535
536 list_remove( &result->sender_entry );
537 result->sender = NULL;
538 if (!result->receiver) free_result( result );
539 }
540
541 /* store the message result in the appropriate structure */
542 static void store_message_result( struct message_result *res, lparam_t result, unsigned int error )
543 {
544 res->result = result;
545 res->error = error;
546 res->replied = 1;
547 if (res->timeout)
548 {
549 remove_timeout_user( res->timeout );
550 res->timeout = NULL;
551 }
552
553 if (res->hardware_msg)
554 {
555 if (!error && result) /* rejected by the hook */
556 free_message( res->hardware_msg );
557 else
558 queue_hardware_message( res->desktop, res->hardware_msg, 0 );
559
560 res->hardware_msg = NULL;
561 }
562
563 if (res->sender)
564 {
565 if (res->callback_msg)
566 {
567 /* queue the callback message in the sender queue */
568 struct callback_msg_data *data = res->callback_msg->data;
569 data->result = result;
570 list_add_tail( &res->sender->msg_list[SEND_MESSAGE], &res->callback_msg->entry );
571 set_queue_bits( res->sender, QS_SENDMESSAGE );
572 res->callback_msg = NULL;
573 remove_result_from_sender( res );
574 }
575 else
576 {
577 /* wake sender queue if waiting on this result */
578 if (list_head(&res->sender->send_result) == &res->sender_entry)
579 set_queue_bits( res->sender, QS_SMRESULT );
580 }
581 }
582 else if (!res->receiver) free_result( res );
583 }
584
585 /* free a message when deleting a queue or window */
586 static void free_message( struct message *msg )
587 {
588 struct message_result *result = msg->result;
589 if (result)
590 {
591 result->msg = NULL;
592 result->receiver = NULL;
593 store_message_result( result, 0, STATUS_ACCESS_DENIED /*FIXME*/ );
594 }
595 free( msg->data );
596 free( msg );
597 }
598
599 /* remove (and free) a message from a message list */
600 static void remove_queue_message( struct msg_queue *queue, struct message *msg,
601 enum message_kind kind )
602 {
603 list_remove( &msg->entry );
604 switch(kind)
605 {
606 case SEND_MESSAGE:
607 if (list_empty( &queue->msg_list[kind] )) clear_queue_bits( queue, QS_SENDMESSAGE );
608 break;
609 case POST_MESSAGE:
610 if (list_empty( &queue->msg_list[kind] ) && !queue->quit_message)
611 clear_queue_bits( queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE );
612 if (msg->msg == WM_HOTKEY && --queue->hotkey_count == 0)
613 clear_queue_bits( queue, QS_HOTKEY );
614 break;
615 }
616 free_message( msg );
617 }
618
619 /* message timed out without getting a reply */
620 static void result_timeout( void *private )
621 {
622 struct message_result *result = private;
623
624 assert( !result->replied );
625
626 result->timeout = NULL;
627
628 if (result->msg) /* not received yet */
629 {
630 struct message *msg = result->msg;
631
632 result->msg = NULL;
633 msg->result = NULL;
634 remove_queue_message( result->receiver, msg, SEND_MESSAGE );
635 result->receiver = NULL;
636 }
637 store_message_result( result, 0, STATUS_TIMEOUT );
638 }
639
640 /* allocate and fill a message result structure */
641 static struct message_result *alloc_message_result( struct msg_queue *send_queue,
642 struct msg_queue *recv_queue,
643 struct message *msg, timeout_t timeout )
644 {
645 struct message_result *result = mem_alloc( sizeof(*result) );
646 if (result)
647 {
648 result->msg = msg;
649 result->sender = send_queue;
650 result->receiver = recv_queue;
651 result->replied = 0;
652 result->data = NULL;
653 result->data_size = 0;
654 result->timeout = NULL;
655 result->hardware_msg = NULL;
656 result->desktop = NULL;
657 result->callback_msg = NULL;
658
659 if (msg->type == MSG_CALLBACK)
660 {
661 struct message *callback_msg = mem_alloc( sizeof(*callback_msg) );
662
663 if (!callback_msg)
664 {
665 free( result );
666 return NULL;
667 }
668 callback_msg->type = MSG_CALLBACK_RESULT;
669 callback_msg->win = msg->win;
670 callback_msg->msg = msg->msg;
671 callback_msg->wparam = 0;
672 callback_msg->lparam = 0;
673 callback_msg->time = get_tick_count();
674 callback_msg->result = NULL;
675 /* steal the data from the original message */
676 callback_msg->data = msg->data;
677 callback_msg->data_size = msg->data_size;
678 msg->data = NULL;
679 msg->data_size = 0;
680
681 result->callback_msg = callback_msg;
682 list_add_head( &send_queue->callback_result, &result->sender_entry );
683 }
684 else if (send_queue) list_add_head( &send_queue->send_result, &result->sender_entry );
685
686 if (timeout != TIMEOUT_INFINITE)
687 result->timeout = add_timeout_user( timeout, result_timeout, result );
688 }
689 return result;
690 }
691
692 /* receive a message, removing it from the sent queue */
693 static void receive_message( struct msg_queue *queue, struct message *msg,
694 struct get_message_reply *reply )
695 {
696 struct message_result *result = msg->result;
697
698 reply->total = msg->data_size;
699 if (msg->data_size > get_reply_max_size())
700 {
701 set_error( STATUS_BUFFER_OVERFLOW );
702 return;
703 }
704 reply->type = msg->type;
705 reply->win = msg->win;
706 reply->msg = msg->msg;
707 reply->wparam = msg->wparam;
708 reply->lparam = msg->lparam;
709 reply->time = msg->time;
710
711 if (msg->data) set_reply_data_ptr( msg->data, msg->data_size );
712
713 list_remove( &msg->entry );
714 /* put the result on the receiver result stack */
715 if (result)
716 {
717 result->msg = NULL;
718 result->recv_next = queue->recv_result;
719 queue->recv_result = result;
720 }
721 free( msg );
722 if (list_empty( &queue->msg_list[SEND_MESSAGE] )) clear_queue_bits( queue, QS_SENDMESSAGE );
723 }
724
725 /* set the result of the current received message */
726 static void reply_message( struct msg_queue *queue, lparam_t result,
727 unsigned int error, int remove, const void *data, data_size_t len )
728 {
729 struct message_result *res = queue->recv_result;
730
731 if (remove)
732 {
733 queue->recv_result = res->recv_next;
734 res->receiver = NULL;
735 if (!res->sender && !res->hardware_msg) /* no one waiting for it */
736 {
737 free_result( res );
738 return;
739 }
740 }
741 if (!res->replied)
742 {
743 if (len && (res->data = memdup( data, len ))) res->data_size = len;
744 store_message_result( res, result, error );
745 }
746 }
747
748 static int match_window( user_handle_t win, user_handle_t msg_win )
749 {
750 if (!win) return 1;
751 if (win == -1 || win == 1) return !msg_win;
752 if (msg_win == win) return 1;
753 return is_child_window( win, msg_win );
754 }
755
756 /* retrieve a posted message */
757 static int get_posted_message( struct msg_queue *queue, user_handle_t win,
758 unsigned int first, unsigned int last, unsigned int flags,
759 struct get_message_reply *reply )
760 {
761 struct message *msg;
762
763 /* check against the filters */
764 LIST_FOR_EACH_ENTRY( msg, &queue->msg_list[POST_MESSAGE], struct message, entry )
765 {
766 if (!match_window( win, msg->win )) continue;
767 if (!check_msg_filter( msg->msg, first, last )) continue;
768 goto found; /* found one */
769 }
770 return 0;
771
772 /* return it to the app */
773 found:
774 reply->total = msg->data_size;
775 if (msg->data_size > get_reply_max_size())
776 {
777 set_error( STATUS_BUFFER_OVERFLOW );
778 return 1;
779 }
780 reply->type = msg->type;
781 reply->win = msg->win;
782 reply->msg = msg->msg;
783 reply->wparam = msg->wparam;
784 reply->lparam = msg->lparam;
785 reply->time = msg->time;
786
787 if (flags & PM_REMOVE)
788 {
789 if (msg->data)
790 {
791 set_reply_data_ptr( msg->data, msg->data_size );
792 msg->data = NULL;
793 msg->data_size = 0;
794 }
795 remove_queue_message( queue, msg, POST_MESSAGE );
796 }
797 else if (msg->data) set_reply_data( msg->data, msg->data_size );
798
799 return 1;
800 }
801
802 static int get_quit_message( struct msg_queue *queue, unsigned int flags,
803 struct get_message_reply *reply )
804 {
805 if (queue->quit_message)
806 {
807 reply->total = 0;
808 reply->type = MSG_POSTED;
809 reply->win = 0;
810 reply->msg = WM_QUIT;
811 reply->wparam = queue->exit_code;
812 reply->lparam = 0;
813 reply->time = get_tick_count();
814
815 if (flags & PM_REMOVE)
816 {
817 queue->quit_message = 0;
818 if (list_empty( &queue->msg_list[POST_MESSAGE] ))
819 clear_queue_bits( queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE );
820 }
821 return 1;
822 }
823 else
824 return 0;
825 }
826
827 /* empty a message list and free all the messages */
828 static void empty_msg_list( struct list *list )
829 {
830 struct list *ptr;
831
832 while ((ptr = list_head( list )) != NULL)
833 {
834 struct message *msg = LIST_ENTRY( ptr, struct message, entry );
835 list_remove( &msg->entry );
836 free_message( msg );
837 }
838 }
839
840 /* cleanup all pending results when deleting a queue */
841 static void cleanup_results( struct msg_queue *queue )
842 {
843 struct list *entry;
844
845 while ((entry = list_head( &queue->send_result )) != NULL)
846 {
847 remove_result_from_sender( LIST_ENTRY( entry, struct message_result, sender_entry ) );
848 }
849
850 while ((entry = list_head( &queue->callback_result )) != NULL)
851 {
852 remove_result_from_sender( LIST_ENTRY( entry, struct message_result, sender_entry ) );
853 }
854
855 while (queue->recv_result)
856 reply_message( queue, 0, STATUS_ACCESS_DENIED /*FIXME*/, 1, NULL, 0 );
857 }
858
859 /* check if the thread owning the queue is hung (not checking for messages) */
860 static int is_queue_hung( struct msg_queue *queue )
861 {
862 struct wait_queue_entry *entry;
863
864 if (current_time - queue->last_get_msg <= 5 * TICKS_PER_SEC)
865 return 0; /* less than 5 seconds since last get message -> not hung */
866
867 LIST_FOR_EACH_ENTRY( entry, &queue->obj.wait_queue, struct wait_queue_entry, entry )
868 {
869 if (entry->thread->queue == queue)
870 return 0; /* thread is waiting on queue -> not hung */
871 }
872 return 1;
873 }
874
875 static int msg_queue_add_queue( struct object *obj, struct wait_queue_entry *entry )
876 {
877 struct msg_queue *queue = (struct msg_queue *)obj;
878 struct process *process = entry->thread->process;
879
880 /* a thread can only wait on its own queue */
881 if (entry->thread->queue != queue)
882 {
883 set_error( STATUS_ACCESS_DENIED );
884 return 0;
885 }
886 if (process->idle_event && !(queue->wake_mask & QS_SMRESULT)) set_event( process->idle_event );
887
888 if (queue->fd && list_empty( &obj->wait_queue )) /* first on the queue */
889 set_fd_events( queue->fd, POLLIN );
890 add_queue( obj, entry );
891 return 1;
892 }
893
894 static void msg_queue_remove_queue(struct object *obj, struct wait_queue_entry *entry )
895 {
896 struct msg_queue *queue = (struct msg_queue *)obj;
897
898 remove_queue( obj, entry );
899 if (queue->fd && list_empty( &obj->wait_queue )) /* last on the queue is gone */
900 set_fd_events( queue->fd, 0 );
901 }
902
903 static void msg_queue_dump( struct object *obj, int verbose )
904 {
905 struct msg_queue *queue = (struct msg_queue *)obj;
906 fprintf( stderr, "Msg queue bits=%x mask=%x\n",
907 queue->wake_bits, queue->wake_mask );
908 }
909
910 static int msg_queue_signaled( struct object *obj, struct thread *thread )
911 {
912 struct msg_queue *queue = (struct msg_queue *)obj;
913 int ret = 0;
914
915 if (queue->fd)
916 {
917 if ((ret = check_fd_events( queue->fd, POLLIN )))
918 /* stop waiting on select() if we are signaled */
919 set_fd_events( queue->fd, 0 );
920 else if (!list_empty( &obj->wait_queue ))
921 /* restart waiting on poll() if we are no longer signaled */
922 set_fd_events( queue->fd, POLLIN );
923 }
924 return ret || is_signaled( queue );
925 }
926
927 static int msg_queue_satisfied( struct object *obj, struct thread *thread )
928 {
929 struct msg_queue *queue = (struct msg_queue *)obj;
930 queue->wake_mask = 0;
931 queue->changed_mask = 0;
932 return 0; /* Not abandoned */
933 }
934
935 static void msg_queue_destroy( struct object *obj )
936 {
937 struct msg_queue *queue = (struct msg_queue *)obj;
938 struct list *ptr;
939 struct hotkey *hotkey, *hotkey2;
940 int i;
941
942 cleanup_results( queue );
943 for (i = 0; i < NB_MSG_KINDS; i++) empty_msg_list( &queue->msg_list[i] );
944
945 LIST_FOR_EACH_ENTRY_SAFE( hotkey, hotkey2, &queue->input->desktop->hotkeys, struct hotkey, entry )
946 {
947 if (hotkey->queue == queue)
948 {
949 list_remove( &hotkey->entry );
950 free( hotkey );
951 }
952 }
953
954 while ((ptr = list_head( &queue->pending_timers )))
955 {
956 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
957 list_remove( &timer->entry );
958 free( timer );
959 }
960 while ((ptr = list_head( &queue->expired_timers )))
961 {
962 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
963 list_remove( &timer->entry );
964 free( timer );
965 }
966 if (queue->timeout) remove_timeout_user( queue->timeout );
967 queue->input->cursor_count -= queue->cursor_count;
968 release_object( queue->input );
969 if (queue->hooks) release_object( queue->hooks );
970 if (queue->fd) release_object( queue->fd );
971 }
972
973 static void msg_queue_poll_event( struct fd *fd, int event )
974 {
975 struct msg_queue *queue = get_fd_user( fd );
976 assert( queue->obj.ops == &msg_queue_ops );
977
978 if (event & (POLLERR | POLLHUP)) set_fd_events( fd, -1 );
979 else set_fd_events( queue->fd, 0 );
980 wake_up( &queue->obj, 0 );
981 }
982
983 static void thread_input_dump( struct object *obj, int verbose )
984 {
985 struct thread_input *input = (struct thread_input *)obj;
986 fprintf( stderr, "Thread input focus=%08x capture=%08x active=%08x\n",
987 input->focus, input->capture, input->active );
988 }
989
990 static void thread_input_destroy( struct object *obj )
991 {
992 struct thread_input *input = (struct thread_input *)obj;
993
994 empty_msg_list( &input->msg_list );
995 if (input->desktop)
996 {
997 if (input->desktop->foreground_input == input) set_foreground_input( input->desktop, NULL );
998 release_object( input->desktop );
999 }
1000 }
1001
1002 /* fix the thread input data when a window is destroyed */
1003 static inline void thread_input_cleanup_window( struct msg_queue *queue, user_handle_t window )
1004 {
1005 struct thread_input *input = queue->input;
1006
1007 if (window == input->focus) input->focus = 0;
1008 if (window == input->capture) input->capture = 0;
1009 if (window == input->active) input->active = 0;
1010 if (window == input->menu_owner) input->menu_owner = 0;
1011 if (window == input->move_size) input->move_size = 0;
1012 if (window == input->caret) set_caret_window( input, 0 );
1013 }
1014
1015 /* check if the specified window can be set in the input data of a given queue */
1016 static int check_queue_input_window( struct msg_queue *queue, user_handle_t window )
1017 {
1018 struct thread *thread;
1019 int ret = 0;
1020
1021 if (!window) return 1; /* we can always clear the data */
1022
1023 if ((thread = get_window_thread( window )))
1024 {
1025 ret = (queue->input == thread->queue->input);
1026 if (!ret) set_error( STATUS_ACCESS_DENIED );
1027 release_object( thread );
1028 }
1029 else set_error( STATUS_INVALID_HANDLE );
1030
1031 return ret;
1032 }
1033
1034 /* make sure the specified thread has a queue */
1035 int init_thread_queue( struct thread *thread )
1036 {
1037 if (thread->queue) return 1;
1038 return (create_msg_queue( thread, NULL ) != NULL);
1039 }
1040
1041 /* attach two thread input data structures */
1042 int attach_thread_input( struct thread *thread_from, struct thread *thread_to )
1043 {
1044 struct desktop *desktop;
1045 struct thread_input *input;
1046 int ret;
1047
1048 if (!thread_to->queue && !(thread_to->queue = create_msg_queue( thread_to, NULL ))) return 0;
1049 if (!(desktop = get_thread_desktop( thread_from, 0 ))) return 0;
1050 input = (struct thread_input *)grab_object( thread_to->queue->input );
1051 if (input->desktop != desktop)
1052 {
1053 set_error( STATUS_ACCESS_DENIED );
1054 release_object( input );
1055 release_object( desktop );
1056 return 0;
1057 }
1058 release_object( desktop );
1059
1060 ret = assign_thread_input( thread_from, input );
1061 if (ret) memset( input->keystate, 0, sizeof(input->keystate) );
1062 release_object( input );
1063 return ret;
1064 }
1065
1066 /* detach two thread input data structures */
1067 void detach_thread_input( struct thread *thread_from )
1068 {
1069 struct thread_input *input;
1070
1071 if ((input = create_thread_input( thread_from )))
1072 {
1073 assign_thread_input( thread_from, input );
1074 release_object( input );
1075 }
1076 }
1077
1078
1079 /* set the next timer to expire */
1080 static void set_next_timer( struct msg_queue *queue )
1081 {
1082 struct list *ptr;
1083
1084 if (queue->timeout)
1085 {
1086 remove_timeout_user( queue->timeout );
1087 queue->timeout = NULL;
1088 }
1089 if ((ptr = list_head( &queue->pending_timers )))
1090 {
1091 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
1092 queue->timeout = add_timeout_user( timer->when, timer_callback, queue );
1093 }
1094 /* set/clear QS_TIMER bit */
1095 if (list_empty( &queue->expired_timers ))
1096 clear_queue_bits( queue, QS_TIMER );
1097 else
1098 set_queue_bits( queue, QS_TIMER );
1099 }
1100
1101 /* find a timer from its window and id */
1102 static struct timer *find_timer( struct msg_queue *queue, user_handle_t win,
1103 unsigned int msg, lparam_t id )
1104 {
1105 struct list *ptr;
1106
1107 /* we need to search both lists */
1108
1109 LIST_FOR_EACH( ptr, &queue->pending_timers )
1110 {
1111 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
1112 if (timer->win == win && timer->msg == msg && timer->id == id) return timer;
1113 }
1114 LIST_FOR_EACH( ptr, &queue->expired_timers )
1115 {
1116 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
1117 if (timer->win == win && timer->msg == msg && timer->id == id) return timer;
1118 }
1119 return NULL;
1120 }
1121
1122 /* callback for the next timer expiration */
1123 static void timer_callback( void *private )
1124 {
1125 struct msg_queue *queue = private;
1126 struct list *ptr;
1127
1128 queue->timeout = NULL;
1129 /* move on to the next timer */
1130 ptr = list_head( &queue->pending_timers );
1131 list_remove( ptr );
1132 list_add_tail( &queue->expired_timers, ptr );
1133 set_next_timer( queue );
1134 }
1135
1136 /* link a timer at its rightful place in the queue list */
1137 static void link_timer( struct msg_queue *queue, struct timer *timer )
1138 {
1139 struct list *ptr;
1140
1141 for (ptr = queue->pending_timers.next; ptr != &queue->pending_timers; ptr = ptr->next)
1142 {
1143 struct timer *t = LIST_ENTRY( ptr, struct timer, entry );
1144 if (t->when >= timer->when) break;
1145 }
1146 list_add_before( ptr, &timer->entry );
1147 }
1148
1149 /* remove a timer from the queue timer list and free it */
1150 static void free_timer( struct msg_queue *queue, struct timer *timer )
1151 {
1152 list_remove( &timer->entry );
1153 free( timer );
1154 set_next_timer( queue );
1155 }
1156
1157 /* restart an expired timer */
1158 static void restart_timer( struct msg_queue *queue, struct timer *timer )
1159 {
1160 list_remove( &timer->entry );
1161 while (timer->when <= current_time) timer->when += (timeout_t)timer->rate * 10000;
1162 link_timer( queue, timer );
1163 set_next_timer( queue );
1164 }
1165
1166 /* find an expired timer matching the filtering parameters */
1167 static struct timer *find_expired_timer( struct msg_queue *queue, user_handle_t win,
1168 unsigned int get_first, unsigned int get_last,
1169 int remove )
1170 {
1171 struct list *ptr;
1172
1173 LIST_FOR_EACH( ptr, &queue->expired_timers )
1174 {
1175 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
1176 if (win && timer->win != win) continue;
1177 if (check_msg_filter( timer->msg, get_first, get_last ))
1178 {
1179 if (remove) restart_timer( queue, timer );
1180 return timer;
1181 }
1182 }
1183 return NULL;
1184 }
1185
1186 /* add a timer */
1187 static struct timer *set_timer( struct msg_queue *queue, unsigned int rate )
1188 {
1189 struct timer *timer = mem_alloc( sizeof(*timer) );
1190 if (timer)
1191 {
1192 timer->rate = max( rate, 1 );
1193 timer->when = current_time + (timeout_t)timer->rate * 10000;
1194 link_timer( queue, timer );
1195 /* check if we replaced the next timer */
1196 if (list_head( &queue->pending_timers ) == &timer->entry) set_next_timer( queue );
1197 }
1198 return timer;
1199 }
1200
1201 /* change the input key state for a given key */
1202 static void set_input_key_state( unsigned char *keystate, unsigned char key, int down )
1203 {
1204 if (down)
1205 {
1206 if (!(keystate[key] & 0x80)) keystate[key] ^= 0x01;
1207 keystate[key] |= down;
1208 }
1209 else keystate[key] &= ~0x80;
1210 }
1211
1212 /* update the input key state for a keyboard message */
1213 static void update_input_key_state( struct desktop *desktop, unsigned char *keystate,
1214 const struct message *msg )
1215 {
1216 unsigned char key;
1217 int down = 0;
1218
1219 switch (msg->msg)
1220 {
1221 case WM_LBUTTONDOWN:
1222 down = (keystate == desktop->keystate) ? 0xc0 : 0x80;
1223 /* fall through */
1224 case WM_LBUTTONUP:
1225 set_input_key_state( keystate, VK_LBUTTON, down );
1226 break;
1227 case WM_MBUTTONDOWN:
1228 down = (keystate == desktop->keystate) ? 0xc0 : 0x80;
1229 /* fall through */
1230 case WM_MBUTTONUP:
1231 set_input_key_state( keystate, VK_MBUTTON, down );
1232 break;
1233 case WM_RBUTTONDOWN:
1234 down = (keystate == desktop->keystate) ? 0xc0 : 0x80;
1235 /* fall through */
1236 case WM_RBUTTONUP:
1237 set_input_key_state( keystate, VK_RBUTTON, down );
1238 break;
1239 case WM_XBUTTONDOWN:
1240 down = (keystate == desktop->keystate) ? 0xc0 : 0x80;
1241 /* fall through */
1242 case WM_XBUTTONUP:
1243 if (msg->wparam >> 16 == XBUTTON1) set_input_key_state( keystate, VK_XBUTTON1, down );
1244 else if (msg->wparam >> 16 == XBUTTON2) set_input_key_state( keystate, VK_XBUTTON2, down );
1245 break;
1246 case WM_KEYDOWN:
1247 case WM_SYSKEYDOWN:
1248 down = (keystate == desktop->keystate) ? 0xc0 : 0x80;
1249 /* fall through */
1250 case WM_KEYUP:
1251 case WM_SYSKEYUP:
1252 key = (unsigned char)msg->wparam;
1253 set_input_key_state( keystate, key, down );
1254 switch(key)
1255 {
1256 case VK_LCONTROL:
1257 case VK_RCONTROL:
1258 down = (keystate[VK_LCONTROL] | keystate[VK_RCONTROL]) & 0x80;
1259 set_input_key_state( keystate, VK_CONTROL, down );
1260 break;
1261 case VK_LMENU:
1262 case VK_RMENU:
1263 down = (keystate[VK_LMENU] | keystate[VK_RMENU]) & 0x80;
1264 set_input_key_state( keystate, VK_MENU, down );
1265 break;
1266 case VK_LSHIFT:
1267 case VK_RSHIFT:
1268 down = (keystate[VK_LSHIFT] | keystate[VK_RSHIFT]) & 0x80;
1269 set_input_key_state( keystate, VK_SHIFT, down );
1270 break;
1271 }
1272 break;
1273 }
1274 }
1275
1276 /* release the hardware message currently being processed by the given thread */
1277 static void release_hardware_message( struct msg_queue *queue, unsigned int hw_id,
1278 int remove, user_handle_t new_win )
1279 {
1280 struct thread_input *input = queue->input;
1281 struct message *msg;
1282
1283 LIST_FOR_EACH_ENTRY( msg, &input->msg_list, struct message, entry )
1284 {
1285 if (msg->unique_id == hw_id) break;
1286 }
1287 if (&msg->entry == &input->msg_list) return; /* not found */
1288
1289 /* clear the queue bit for that message */
1290 if (remove || new_win)
1291 {
1292 struct message *other;
1293 int clr_bit;
1294
1295 clr_bit = get_hardware_msg_bit( msg );
1296 LIST_FOR_EACH_ENTRY( other, &input->msg_list, struct message, entry )
1297 {
1298 if (other != msg && get_hardware_msg_bit( other ) == clr_bit)
1299 {
1300 clr_bit = 0;
1301 break;
1302 }
1303 }
1304 if (clr_bit) clear_queue_bits( queue, clr_bit );
1305 }
1306
1307 if (new_win) /* set the new window */
1308 {
1309 struct thread *owner = get_window_thread( new_win );
1310 if (owner)
1311 {
1312 msg->win = new_win;
1313 if (owner->queue->input != input)
1314 {
1315 list_remove( &msg->entry );
1316 if (merge_message( owner->queue->input, msg ))
1317 {
1318 free_message( msg );
1319 release_object( owner );
1320 return;
1321 }
1322 list_add_tail( &owner->queue->input->msg_list, &msg->entry );
1323 }
1324 set_queue_bits( owner->queue, get_hardware_msg_bit( msg ));
1325 remove = 0;
1326 release_object( owner );
1327 }
1328 }
1329 if (remove)
1330 {
1331 update_input_key_state( input->desktop, input->keystate, msg );
1332 list_remove( &msg->entry );
1333 free_message( msg );
1334 }
1335 }
1336
1337 static int queue_hotkey_message( struct desktop *desktop, struct message *msg )
1338 {
1339 struct hotkey *hotkey;
1340 unsigned int modifiers = 0;
1341
1342 if (msg->msg != WM_KEYDOWN) return 0;
1343
1344 if (desktop->keystate[VK_MENU] & 0x80) modifiers |= MOD_ALT;
1345 if (desktop->keystate[VK_CONTROL] & 0x80) modifiers |= MOD_CONTROL;
1346 if (desktop->keystate[VK_SHIFT] & 0x80) modifiers |= MOD_SHIFT;
1347 if ((desktop->keystate[VK_LWIN] & 0x80) || (desktop->keystate[VK_RWIN] & 0x80)) modifiers |= MOD_WIN;
1348
1349 LIST_FOR_EACH_ENTRY( hotkey, &desktop->hotkeys, struct hotkey, entry )
1350 {
1351 if (hotkey->vkey != msg->wparam) continue;
1352 if ((hotkey->flags & (MOD_ALT|MOD_CONTROL|MOD_SHIFT|MOD_WIN)) == modifiers) goto found;
1353 }
1354
1355 return 0;
1356
1357 found:
1358 msg->type = MSG_POSTED;
1359 msg->win = hotkey->win;
1360 msg->msg = WM_HOTKEY;
1361 msg->wparam = hotkey->id;
1362 msg->lparam = ((hotkey->vkey & 0xffff) << 16) | modifiers;
1363
1364 free( msg->data );
1365 msg->data = NULL;
1366 msg->data_size = 0;
1367
1368 list_add_tail( &hotkey->queue->msg_list[POST_MESSAGE], &msg->entry );
1369 set_queue_bits( hotkey->queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE|QS_HOTKEY );
1370 hotkey->queue->hotkey_count++;
1371 return 1;
1372 }
1373
1374 /* find the window that should receive a given hardware message */
1375 static user_handle_t find_hardware_message_window( struct desktop *desktop, struct thread_input *input,
1376 struct message *msg, unsigned int *msg_code )
1377 {
1378 struct hardware_msg_data *data = msg->data;
1379 user_handle_t win = 0;
1380
1381 *msg_code = msg->msg;
1382 if (msg->msg == WM_INPUT)
1383 {
1384 if (!(win = msg->win) && input) win = input->focus;
1385 }
1386 else if (is_keyboard_msg( msg ))
1387 {
1388 if (input && !(win = input->focus))
1389 {
1390 win = input->active;
1391 if (*msg_code < WM_SYSKEYDOWN) *msg_code += WM_SYSKEYDOWN - WM_KEYDOWN;
1392 }
1393 }
1394 else /* mouse message */
1395 {
1396 if (!input || !(win = input->capture))
1397 {
1398 if (!(win = msg->win) || !is_window_visible( win ) || is_window_transparent( win ))
1399 win = window_from_point( desktop, data->x, data->y );
1400 }
1401 }
1402 return win;
1403 }
1404
1405 static struct rawinput_device_entry *find_rawinput_device( unsigned short usage_page, unsigned short usage )
1406 {
1407 struct rawinput_device_entry *e;
1408
1409 LIST_FOR_EACH_ENTRY( e, &current->process->rawinput_devices, struct rawinput_device_entry, entry )
1410 {
1411 if (e->device.usage_page != usage_page || e->device.usage != usage) continue;
1412 return e;
1413 }
1414
1415 return NULL;
1416 }
1417
1418 static void update_rawinput_device(const struct rawinput_device *device)
1419 {
1420 struct rawinput_device_entry *e;
1421
1422 if (!(e = find_rawinput_device( device->usage_page, device->usage )))
1423 {
1424 if (!(e = mem_alloc( sizeof(*e) ))) return;
1425 list_add_tail( &current->process->rawinput_devices, &e->entry );
1426 }
1427
1428 if (device->flags & RIDEV_REMOVE)
1429 {
1430 list_remove( &e->entry );
1431 free( e );
1432 return;
1433 }
1434
1435 e->device = *device;
1436 e->device.target = get_user_full_handle( e->device.target );
1437 }
1438
1439 /* queue a hardware message into a given thread input */
1440 static void queue_hardware_message( struct desktop *desktop, struct message *msg, int always_queue )
1441 {
1442 user_handle_t win;
1443 struct thread *thread;
1444 struct thread_input *input;
1445 unsigned int msg_code;
1446 struct hardware_msg_data *data = msg->data;
1447
1448 update_input_key_state( desktop, desktop->keystate, msg );
1449 last_input_time = get_tick_count();
1450 if (msg->msg != WM_MOUSEMOVE) always_queue = 1;
1451
1452 if (is_keyboard_msg( msg ))
1453 {
1454 if (queue_hotkey_message( desktop, msg )) return;
1455 if (desktop->keystate[VK_MENU] & 0x80) msg->lparam |= KF_ALTDOWN << 16;
1456 if (msg->wparam == VK_SHIFT || msg->wparam == VK_LSHIFT || msg->wparam == VK_RSHIFT)
1457 msg->lparam &= ~(KF_EXTENDED << 16);
1458 }
1459 else if (msg->msg != WM_INPUT)
1460 {
1461 if (msg->msg == WM_MOUSEMOVE)
1462 {
1463 int x = min( max( data->x, desktop->cursor.clip.left ), desktop->cursor.clip.right-1 );
1464 int y = min( max( data->y, desktop->cursor.clip.top ), desktop->cursor.clip.bottom-1 );
1465 if (desktop->cursor.x != x || desktop->cursor.y != y) always_queue = 1;
1466 desktop->cursor.x = x;
1467 desktop->cursor.y = y;
1468 desktop->cursor.last_change = get_tick_count();
1469 }
1470 if (desktop->keystate[VK_LBUTTON] & 0x80) msg->wparam |= MK_LBUTTON;
1471 if (desktop->keystate[VK_MBUTTON] & 0x80) msg->wparam |= MK_MBUTTON;
1472 if (desktop->keystate[VK_RBUTTON] & 0x80) msg->wparam |= MK_RBUTTON;
1473 if (desktop->keystate[VK_SHIFT] & 0x80) msg->wparam |= MK_SHIFT;
1474 if (desktop->keystate[VK_CONTROL] & 0x80) msg->wparam |= MK_CONTROL;
1475 if (desktop->keystate[VK_XBUTTON1] & 0x80) msg->wparam |= MK_XBUTTON1;
1476 if (desktop->keystate[VK_XBUTTON2] & 0x80) msg->wparam |= MK_XBUTTON2;
1477 }
1478 data->x = desktop->cursor.x;
1479 data->y = desktop->cursor.y;
1480
1481 if (msg->win && (thread = get_window_thread( msg->win )))
1482 {
1483 input = thread->queue->input;
1484 release_object( thread );
1485 }
1486 else input = desktop->foreground_input;
1487
1488 win = find_hardware_message_window( desktop, input, msg, &msg_code );
1489 if (!win || !(thread = get_window_thread(win)))
1490 {
1491 if (input) update_input_key_state( input->desktop, input->keystate, msg );
1492 free_message( msg );
1493 return;
1494 }
1495 input = thread->queue->input;
1496
1497 if (win != desktop->cursor.win) always_queue = 1;
1498 desktop->cursor.win = win;
1499
1500 if (!always_queue || merge_message( input, msg )) free_message( msg );
1501 else
1502 {
1503 msg->unique_id = 0; /* will be set once we return it to the app */
1504 list_add_tail( &input->msg_list, &msg->entry );
1505 set_queue_bits( thread->queue, get_hardware_msg_bit(msg) );
1506 }
1507 release_object( thread );
1508 }
1509
1510 /* send the low-level hook message for a given hardware message */
1511 static int send_hook_ll_message( struct desktop *desktop, struct message *hardware_msg,
1512 const hw_input_t *input, struct msg_queue *sender )
1513 {
1514 struct thread *hook_thread;
1515 struct msg_queue *queue;
1516 struct message *msg;
1517 timeout_t timeout = 2000 * -10000; /* FIXME: load from registry */
1518 int id = (input->type == INPUT_MOUSE) ? WH_MOUSE_LL : WH_KEYBOARD_LL;
1519
1520 if (!(hook_thread = get_first_global_hook( id ))) return 0;
1521 if (!(queue = hook_thread->queue)) return 0;
1522 if (is_queue_hung( queue )) return 0;
1523
1524 if (!(msg = mem_alloc( sizeof(*msg) ))) return 0;
1525
1526 msg->type = MSG_HOOK_LL;
1527 msg->win = 0;
1528 msg->msg = id;
1529 msg->wparam = hardware_msg->msg;
1530 msg->time = hardware_msg->time;
1531 msg->data_size = hardware_msg->data_size;
1532 msg->result = NULL;
1533
1534 if (input->type == INPUT_KEYBOARD)
1535 {
1536 unsigned short vkey = input->kbd.vkey;
1537 if (input->kbd.flags & KEYEVENTF_UNICODE) vkey = VK_PACKET;
1538 msg->lparam = (input->kbd.scan << 16) | vkey;
1539 }
1540 else msg->lparam = input->mouse.data << 16;
1541
1542 if (!(msg->data = memdup( hardware_msg->data, hardware_msg->data_size )) ||
1543 !(msg->result = alloc_message_result( sender, queue, msg, timeout )))
1544 {
1545 free_message( msg );
1546 return 0;
1547 }
1548 msg->result->hardware_msg = hardware_msg;
1549 msg->result->desktop = (struct desktop *)grab_object( desktop );
1550 list_add_tail( &queue->msg_list[SEND_MESSAGE], &msg->entry );
1551 set_queue_bits( queue, QS_SENDMESSAGE );
1552 return 1;
1553 }
1554
1555 /* queue a hardware message for a mouse event */
1556 static int queue_mouse_message( struct desktop *desktop, user_handle_t win, const hw_input_t *input,
1557 unsigned int hook_flags, struct msg_queue *sender )
1558 {
1559 const struct rawinput_device *device;
1560 struct hardware_msg_data *msg_data;
1561 struct message *msg;
1562 unsigned int i, time, flags;
1563 int wait = 0, x, y;
1564
1565 static const unsigned int messages[] =
1566 {
1567 WM_MOUSEMOVE, /* 0x0001 = MOUSEEVENTF_MOVE */
1568 WM_LBUTTONDOWN, /* 0x0002 = MOUSEEVENTF_LEFTDOWN */
1569 WM_LBUTTONUP, /* 0x0004 = MOUSEEVENTF_LEFTUP */
1570 WM_RBUTTONDOWN, /* 0x0008 = MOUSEEVENTF_RIGHTDOWN */
1571 WM_RBUTTONUP, /* 0x0010 = MOUSEEVENTF_RIGHTUP */
1572 WM_MBUTTONDOWN, /* 0x0020 = MOUSEEVENTF_MIDDLEDOWN */
1573 WM_MBUTTONUP, /* 0x0040 = MOUSEEVENTF_MIDDLEUP */
1574 WM_XBUTTONDOWN, /* 0x0080 = MOUSEEVENTF_XDOWN */
1575 WM_XBUTTONUP, /* 0x0100 = MOUSEEVENTF_XUP */
1576 0, /* 0x0200 = unused */
1577 0, /* 0x0400 = unused */
1578 WM_MOUSEWHEEL, /* 0x0800 = MOUSEEVENTF_WHEEL */
1579 WM_MOUSEHWHEEL /* 0x1000 = MOUSEEVENTF_HWHEEL */
1580 };
1581
1582 desktop->cursor.last_change = get_tick_count();
1583 flags = input->mouse.flags;
1584 time = input->mouse.time;
1585 if (!time) time = desktop->cursor.last_change;
1586
1587 if (flags & MOUSEEVENTF_MOVE)
1588 {
1589 if (flags & MOUSEEVENTF_ABSOLUTE)
1590 {
1591 x = input->mouse.x;
1592 y = input->mouse.y;
1593 if (flags & ~(MOUSEEVENTF_MOVE | MOUSEEVENTF_ABSOLUTE) &&
1594 x == desktop->cursor.x && y == desktop->cursor.y)
1595 flags &= ~MOUSEEVENTF_MOVE;
1596 }
1597 else
1598 {
1599 x = desktop->cursor.x + input->mouse.x;
1600 y = desktop->cursor.y + input->mouse.y;
1601 }
1602 }
1603 else
1604 {
1605 x = desktop->cursor.x;
1606 y = desktop->cursor.y;
1607 }
1608
1609 if ((device = current->process->rawinput_mouse))
1610 {
1611 if (!(msg = mem_alloc( sizeof(*msg) ))) return 0;
1612 if (!(msg_data = mem_alloc( sizeof(*msg_data) )))
1613 {
1614 free( msg );
1615 return 0;
1616 }
1617
1618 msg->type = MSG_HARDWARE;
1619 msg->win = device->target;
1620 msg->msg = WM_INPUT;
1621 msg->wparam = RIM_INPUT;
1622 msg->lparam = 0;
1623 msg->time = time;
1624 msg->data = msg_data;
1625 msg->data_size = sizeof(*msg_data);
1626 msg->result = NULL;
1627
1628 msg_data->info = input->mouse.info;
1629 msg_data->flags = flags;
1630 msg_data->rawinput.type = RIM_TYPEMOUSE;
1631 msg_data->rawinput.mouse.x = x - desktop->cursor.x;
1632 msg_data->rawinput.mouse.y = y - desktop->cursor.y;
1633 msg_data->rawinput.mouse.data = input->mouse.data;
1634
1635 queue_hardware_message( desktop, msg, 0 );
1636 }
1637
1638 for (i = 0; i < sizeof(messages)/sizeof(messages[0]); i++)
1639 {
1640 if (!messages[i]) continue;
1641 if (!(flags & (1 << i))) continue;
1642 flags &= ~(1 << i);
1643
1644 if (!(msg = mem_alloc( sizeof(*msg) ))) return 0;
1645 if (!(msg_data = mem_alloc( sizeof(*msg_data) )))
1646 {
1647 free( msg );
1648 return 0;
1649 }
1650 memset( msg_data, 0, sizeof(*msg_data) );
1651
1652 msg->type = MSG_HARDWARE;
1653 msg->win = get_user_full_handle( win );
1654 msg->msg = messages[i];
1655 msg->wparam = input->mouse.data << 16;
1656 msg->lparam = 0;
1657 msg->time = time;
1658 msg->result = NULL;
1659 msg->data = msg_data;
1660 msg->data_size = sizeof(*msg_data);
1661 msg_data->x = x;
1662 msg_data->y = y;
1663 msg_data->info = input->mouse.info;
1664 if (hook_flags & SEND_HWMSG_INJECTED) msg_data->flags = LLMHF_INJECTED;
1665
1666 /* specify a sender only when sending the last message */
1667 if (!(flags & ((1 << sizeof(messages)/sizeof(messages[0])) - 1)))
1668 {
1669 if (!(wait = send_hook_ll_message( desktop, msg, input, sender )))
1670 queue_hardware_message( desktop, msg, 0 );
1671 }
1672 else if (!send_hook_ll_message( desktop, msg, input, NULL ))
1673 queue_hardware_message( desktop, msg, 0 );
1674 }
1675 return wait;
1676 }
1677
1678 /* queue a hardware message for a keyboard event */
1679 static int queue_keyboard_message( struct desktop *desktop, user_handle_t win, const hw_input_t *input,
1680 unsigned int hook_flags, struct msg_queue *sender )
1681 {
1682 const struct rawinput_device *device;
1683 struct hardware_msg_data *msg_data;
1684 struct message *msg;
1685 unsigned char vkey = input->kbd.vkey;
1686 unsigned int message_code, time;
1687 int wait;
1688
1689 if (!(time = input->kbd.time)) time = get_tick_count();
1690
1691 if (!(input->kbd.flags & KEYEVENTF_UNICODE))
1692 {
1693 switch (vkey)
1694 {
1695 case VK_MENU:
1696 case VK_LMENU:
1697 case VK_RMENU:
1698 vkey = (input->kbd.flags & KEYEVENTF_EXTENDEDKEY) ? VK_RMENU : VK_LMENU;
1699 break;
1700 case VK_CONTROL:
1701 case VK_LCONTROL:
1702 case VK_RCONTROL:
1703 vkey = (input->kbd.flags & KEYEVENTF_EXTENDEDKEY) ? VK_RCONTROL : VK_LCONTROL;
1704 break;
1705 case VK_SHIFT:
1706 case VK_LSHIFT:
1707 case VK_RSHIFT:
1708 vkey = (input->kbd.flags & KEYEVENTF_EXTENDEDKEY) ? VK_RSHIFT : VK_LSHIFT;
1709 break;
1710 }
1711 }
1712
1713 message_code = (input->kbd.flags & KEYEVENTF_KEYUP) ? WM_KEYUP : WM_KEYDOWN;
1714 switch (vkey)
1715 {
1716 case VK_LMENU:
1717 case VK_RMENU:
1718 if (input->kbd.flags & KEYEVENTF_KEYUP)
1719 {
1720 /* send WM_SYSKEYUP if Alt still pressed and no other key in between */
1721 /* we use 0x02 as a flag to track if some other SYSKEYUP was sent already */
1722 if ((desktop->keystate[VK_MENU] & 0x82) != 0x82) break;
1723 message_code = WM_SYSKEYUP;
1724 desktop->keystate[VK_MENU] &= ~0x02;
1725 }
1726 else
1727 {
1728 /* send WM_SYSKEYDOWN for Alt except with Ctrl */
1729 if (desktop->keystate[VK_CONTROL] & 0x80) break;
1730 message_code = WM_SYSKEYDOWN;
1731 desktop->keystate[VK_MENU] |= 0x02;
1732 }
1733 break;
1734
1735 case VK_LCONTROL:
1736 case VK_RCONTROL:
1737 /* send WM_SYSKEYUP on release if Alt still pressed */
1738 if (!(input->kbd.flags & KEYEVENTF_KEYUP)) break;
1739 if (!(desktop->keystate[VK_MENU] & 0x80)) break;
1740 message_code = WM_SYSKEYUP;
1741 desktop->keystate[VK_MENU] &= ~0x02;
1742 break;
1743
1744 default:
1745 /* send WM_SYSKEY for Alt-anykey and for F10 */
1746 if (desktop->keystate[VK_CONTROL] & 0x80) break;
1747 if (!(desktop->keystate[VK_MENU] & 0x80)) break;
1748 /* fall through */
1749 case VK_F10:
1750 message_code = (input->kbd.flags & KEYEVENTF_KEYUP) ? WM_SYSKEYUP : WM_SYSKEYDOWN;
1751 desktop->keystate[VK_MENU] &= ~0x02;
1752 break;
1753 }
1754
1755 if ((device = current->process->rawinput_kbd))
1756 {
1757 if (!(msg = mem_alloc( sizeof(*msg) ))) return 0;
1758 if (!(msg_data = mem_alloc( sizeof(*msg_data) )))
1759 {
1760 free( msg );
1761 return 0;
1762 }
1763
1764 msg->type = MSG_HARDWARE;
1765 msg->win = device->target;
1766 msg->msg = WM_INPUT;
1767 msg->wparam = RIM_INPUT;
1768 msg->lparam = 0;
1769 msg->time = time;
1770 msg->data = msg_data;
1771 msg->data_size = sizeof(*msg_data);
1772 msg->result = NULL;
1773
1774 msg_data->info = input->kbd.info;
1775 msg_data->flags = input->kbd.flags;
1776 msg_data->rawinput.type = RIM_TYPEKEYBOARD;
1777 msg_data->rawinput.kbd.message = message_code;
1778 msg_data->rawinput.kbd.vkey = vkey;
1779 msg_data->rawinput.kbd.scan = input->kbd.scan;
1780
1781 queue_hardware_message( desktop, msg, 0 );
1782 }
1783
1784 if (!(msg = mem_alloc( sizeof(*msg) ))) return 0;
1785 if (!(msg_data = mem_alloc( sizeof(*msg_data) )))
1786 {
1787 free( msg );
1788 return 0;
1789 }
1790 memset( msg_data, 0, sizeof(*msg_data) );
1791
1792 msg->type = MSG_HARDWARE;
1793 msg->win = get_user_full_handle( win );
1794 msg->msg = message_code;
1795 msg->lparam = (input->kbd.scan << 16) | 1u; /* repeat count */
1796 msg->time = time;
1797 msg->result = NULL;
1798 msg->data = msg_data;
1799 msg->data_size = sizeof(*msg_data);
1800 msg_data->info = input->kbd.info;
1801 if (hook_flags & SEND_HWMSG_INJECTED) msg_data->flags = LLKHF_INJECTED;
1802
1803 if (input->kbd.flags & KEYEVENTF_UNICODE)
1804 {
1805 msg->wparam = VK_PACKET;
1806 }
1807 else
1808 {
1809 unsigned int flags = 0;
1810 if (input->kbd.flags & KEYEVENTF_EXTENDEDKEY) flags |= KF_EXTENDED;
1811 /* FIXME: set KF_DLGMODE and KF_MENUMODE when needed */
1812 if (input->kbd.flags & KEYEVENTF_KEYUP) flags |= KF_REPEAT | KF_UP;
1813 else if (desktop->keystate[vkey] & 0x80) flags |= KF_REPEAT;
1814
1815 msg->wparam = vkey;
1816 msg->lparam |= flags << 16;
1817 msg_data->flags |= (flags & (KF_EXTENDED | KF_ALTDOWN | KF_UP)) >> 8;
1818 }
1819
1820 if (!(wait = send_hook_ll_message( desktop, msg, input, sender )))
1821 queue_hardware_message( desktop, msg, 1 );
1822
1823 return wait;
1824 }
1825
1826 /* queue a hardware message for a custom type of event */
1827 static void queue_custom_hardware_message( struct desktop *desktop, user_handle_t win,
1828 const hw_input_t *input )
1829 {
1830 struct hardware_msg_data *msg_data;
1831 struct message *msg;
1832
1833 if (!(msg = mem_alloc( sizeof(*msg) ))) return;
1834 if (!(msg_data = mem_alloc( sizeof(*msg_data) )))
1835 {
1836 free( msg );
1837 return;
1838 }
1839 memset( msg_data, 0, sizeof(*msg_data) );
1840
1841 msg->type = MSG_HARDWARE;
1842 msg->win = get_user_full_handle( win );
1843 msg->msg = input->hw.msg;
1844 msg->wparam = 0;
1845 msg->lparam = input->hw.lparam;
1846 msg->time = get_tick_count();
1847 msg->result = NULL;
1848 msg->data = msg_data;
1849 msg->data_size = sizeof(*msg_data);
1850
1851 queue_hardware_message( desktop, msg, 1 );
1852 }
1853
1854 /* check message filter for a hardware message */
1855 static int check_hw_message_filter( user_handle_t win, unsigned int msg_code,
1856 user_handle_t filter_win, unsigned int first, unsigned int last )
1857 {
1858 if (msg_code >= WM_KEYFIRST && msg_code <= WM_KEYLAST)
1859 {
1860 /* we can only test the window for a keyboard message since the
1861 * dest window for a mouse message depends on hittest */
1862 if (filter_win && win != filter_win && !is_child_window( filter_win, win ))
1863 return 0;
1864 /* the message code is final for a keyboard message, we can simply check it */
1865 return check_msg_filter( msg_code, first, last );
1866 }
1867 else /* mouse message */
1868 {
1869 /* we need to check all possible values that the message can have in the end */
1870
1871 if (check_msg_filter( msg_code, first, last )) return 1;
1872 if (msg_code == WM_MOUSEWHEEL) return 0; /* no other possible value for this one */
1873
1874 /* all other messages can become non-client messages */
1875 if (check_msg_filter( msg_code + (WM_NCMOUSEFIRST - WM_MOUSEFIRST), first, last )) return 1;
1876
1877 /* clicks can become double-clicks or non-client double-clicks */
1878 if (msg_code == WM_LBUTTONDOWN || msg_code == WM_MBUTTONDOWN ||
1879 msg_code == WM_RBUTTONDOWN || msg_code == WM_XBUTTONDOWN)
1880 {
1881 if (check_msg_filter( msg_code + (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN), first, last )) return 1;
1882 if (check_msg_filter( msg_code + (WM_NCLBUTTONDBLCLK - WM_LBUTTONDOWN), first, last )) return 1;
1883 }
1884 return 0;
1885 }
1886 }
1887
1888
1889 /* find a hardware message for the given queue */
1890 static int get_hardware_message( struct thread *thread, unsigned int hw_id, user_handle_t filter_win,
1891 unsigned int first, unsigned int last, unsigned int flags,
1892 struct get_message_reply *reply )
1893 {
1894 struct thread_input *input = thread->queue->input;
1895 struct thread *win_thread;
1896 struct list *ptr;
1897 user_handle_t win;
1898 int clear_bits, got_one = 0;
1899 unsigned int msg_code;
1900
1901 ptr = list_head( &input->msg_list );
1902 if (hw_id)
1903 {
1904 while (ptr)
1905 {
1906 struct message *msg = LIST_ENTRY( ptr, struct message, entry );
1907 if (msg->unique_id == hw_id) break;
1908 ptr = list_next( &input->msg_list, ptr );
1909 }
1910 if (!ptr) ptr = list_head( &input->msg_list );
1911 else ptr = list_next( &input->msg_list, ptr ); /* start from the next one */
1912 }
1913
1914 if (ptr == list_head( &input->msg_list ))
1915 clear_bits = QS_INPUT;
1916 else
1917 clear_bits = 0; /* don't clear bits if we don't go through the whole list */
1918
1919 while (ptr)
1920 {
1921 struct message *msg = LIST_ENTRY( ptr, struct message, entry );
1922 struct hardware_msg_data *data = msg->data;
1923
1924 ptr = list_next( &input->msg_list, ptr );
1925 win = find_hardware_message_window( input->desktop, input, msg, &msg_code );
1926 if (!win || !(win_thread = get_window_thread( win )))
1927 {
1928 /* no window at all, remove it */
1929 update_input_key_state( input->desktop, input->keystate, msg );
1930 list_remove( &msg->entry );
1931 free_message( msg );
1932 continue;
1933 }
1934 if (win_thread != thread)
1935 {
1936 if (win_thread->queue->input == input)
1937 {
1938 /* wake the other thread */
1939 set_queue_bits( win_thread->queue, get_hardware_msg_bit(msg) );
1940 got_one = 1;
1941 }
1942 else
1943 {
1944 /* for another thread input, drop it */
1945 update_input_key_state( input->desktop, input->keystate, msg );
1946 list_remove( &msg->entry );
1947 free_message( msg );
1948 }
1949 release_object( win_thread );
1950 continue;
1951 }
1952 release_object( win_thread );
1953
1954 /* if we already got a message for another thread, or if it doesn't
1955 * match the filter we skip it */
1956 if (got_one || !check_hw_message_filter( win, msg_code, filter_win, first, last ))
1957 {
1958 clear_bits &= ~get_hardware_msg_bit( msg );
1959 continue;
1960 }
1961 /* now we can return it */
1962 if (!msg->unique_id) msg->unique_id = get_unique_id();
1963 reply->type = MSG_HARDWARE;
1964 reply->win = win;
1965 reply->msg = msg_code;
1966 reply->wparam = msg->wparam;
1967 reply->lparam = msg->lparam;
1968 reply->time = msg->time;
1969
1970 data->hw_id = msg->unique_id;
1971 set_reply_data( msg->data, msg->data_size );
1972 if (msg->msg == WM_INPUT && (flags & PM_REMOVE))
1973 release_hardware_message( current->queue, data->hw_id, 1, 0 );
1974 return 1;
1975 }
1976 /* nothing found, clear the hardware queue bits */
1977 clear_queue_bits( thread->queue, clear_bits );
1978 return 0;
1979 }
1980
1981 /* increment (or decrement if 'incr' is negative) the queue paint count */
1982 void inc_queue_paint_count( struct thread *thread, int incr )
1983 {
1984 struct msg_queue *queue = thread->queue;
1985
1986 assert( queue );
1987
1988 if ((queue->paint_count += incr) < 0) queue->paint_count = 0;
1989
1990 if (queue->paint_count)
1991 set_queue_bits( queue, QS_PAINT );
1992 else
1993 clear_queue_bits( queue, QS_PAINT );
1994 }
1995
1996
1997 /* remove all messages and timers belonging to a certain window */
1998 void queue_cleanup_window( struct thread *thread, user_handle_t win )
1999 {
2000 struct msg_queue *queue = thread->queue;
2001 struct list *ptr;
2002 int i;
2003
2004 if (!queue) return;
2005
2006 /* remove timers */
2007
2008 ptr = list_head( &queue->pending_timers );
2009 while (ptr)
2010 {
2011 struct list *next = list_next( &queue->pending_timers, ptr );
2012 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
2013 if (timer->win == win) free_timer( queue, timer );
2014 ptr = next;
2015 }
2016 ptr = list_head( &queue->expired_timers );
2017 while (ptr)
2018 {
2019 struct list *next = list_next( &queue->expired_timers, ptr );
2020 struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
2021 if (timer->win == win) free_timer( queue, timer );
2022 ptr = next;
2023 }
2024
2025 /* remove messages */
2026 for (i = 0; i < NB_MSG_KINDS; i++)
2027 {
2028 struct list *ptr, *next;
2029
2030 LIST_FOR_EACH_SAFE( ptr, next, &queue->msg_list[i] )
2031 {
2032 struct message *msg = LIST_ENTRY( ptr, struct message, entry );
2033 if (msg->win == win)
2034 {
2035 if (msg->msg == WM_QUIT && !queue->quit_message)
2036 {
2037 queue->quit_message = 1;
2038 queue->exit_code = msg->wparam;
2039 }
2040 remove_queue_message( queue, msg, i );
2041 }
2042 }
2043 }
2044
2045 thread_input_cleanup_window( queue, win );
2046 }
2047
2048 /* post a message to a window; used by socket handling */
2049 void post_message( user_handle_t win, unsigned int message, lparam_t wparam, lparam_t lparam )
2050 {
2051 struct message *msg;
2052 struct thread *thread = get_window_thread( win );
2053
2054 if (!thread) return;
2055
2056 if (thread->queue && (msg = mem_alloc( sizeof(*msg) )))
2057 {
2058 msg->type = MSG_POSTED;
2059 msg->win = get_user_full_handle( win );
2060 msg->msg = message;
2061 msg->wparam = wparam;
2062 msg->lparam = lparam;
2063 msg->time = get_tick_count();
2064 msg->result = NULL;
2065 msg->data = NULL;
2066 msg->data_size = 0;
2067
2068 list_add_tail( &thread->queue->msg_list[POST_MESSAGE], &msg->entry );
2069 set_queue_bits( thread->queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE );
2070 if (message == WM_HOTKEY)
2071 {
2072 set_queue_bits( thread->queue, QS_HOTKEY );
2073 thread->queue->hotkey_count++;
2074 }
2075 }
2076 release_object( thread );
2077 }
2078
2079 /* post a win event */
2080 void post_win_event( struct thread *thread, unsigned int event,
2081 user_handle_t win, unsigned int object_id,
2082 unsigned int child_id, client_ptr_t hook_proc,
2083 const WCHAR *module, data_size_t module_size,
2084 user_handle_t hook)
2085 {
2086 struct message *msg;
2087
2088 if (thread->queue && (msg = mem_alloc( sizeof(*msg) )))
2089 {
2090 struct winevent_msg_data *data;
2091
2092 msg->type = MSG_WINEVENT;
2093 msg->win = get_user_full_handle( win );
2094 msg->msg = event;
2095 msg->wparam = object_id;
2096 msg->lparam = child_id;
2097 msg->time = get_tick_count();
2098 msg->result = NULL;
2099
2100 if ((data = malloc( sizeof(*data) + module_size )))
2101 {
2102 data->hook = hook;
2103 data->tid = get_thread_id( current );
2104 data->hook_proc = hook_proc;
2105 memcpy( data + 1, module, module_size );
2106
2107 msg->data = data;
2108 msg->data_size = sizeof(*data) + module_size;
2109
2110 if (debug_level > 1)
2111 fprintf( stderr, "post_win_event: tid %04x event %04x win %08x object_id %d child_id %d\n",
2112 get_thread_id(thread), event, win, object_id, child_id );
2113 list_add_tail( &thread->queue->msg_list[SEND_MESSAGE], &msg->entry );
2114 set_queue_bits( thread->queue, QS_SENDMESSAGE );
2115 }
2116 else
2117 free( msg );
2118 }
2119 }
2120
2121 /* free all hotkeys on a desktop, optionally filtering by window */
2122 void free_hotkeys( struct desktop *desktop, user_handle_t window )
2123 {
2124 struct hotkey *hotkey, *hotkey2;
2125
2126 LIST_FOR_EACH_ENTRY_SAFE( hotkey, hotkey2, &desktop->hotkeys, struct hotkey, entry )
2127 {
2128 if (!window || hotkey->win == window)
2129 {
2130 list_remove( &hotkey->entry );
2131 free( hotkey );
2132 }
2133 }
2134 }
2135
2136
2137 /* check if the thread owning the window is hung */
2138 DECL_HANDLER(is_window_hung)
2139 {
2140 struct thread *thread;
2141
2142 thread = get_window_thread( req->win );
2143 if (thread)
2144 {
2145 reply->is_hung = is_queue_hung( thread->queue );
2146 release_object( thread );
2147 }
2148 else reply->is_hung = 0;
2149 }
2150
2151
2152 /* get the message queue of the current thread */
2153 DECL_HANDLER(get_msg_queue)
2154 {
2155 struct msg_queue *queue = get_current_queue();
2156
2157 reply->handle = 0;
2158 if (queue) reply->handle = alloc_handle( current->process, queue, SYNCHRONIZE, 0 );
2159 }
2160
2161
2162 /* set the file descriptor associated to the current thread queue */
2163 DECL_HANDLER(set_queue_fd)
2164 {
2165 struct msg_queue *queue = get_current_queue();
2166 struct file *file;
2167 int unix_fd;
2168
2169 if (queue->fd) /* fd can only be set once */
2170 {
2171 set_error( STATUS_ACCESS_DENIED );
2172 return;
2173 }
2174 if (!(file = get_file_obj( current->process, req->handle, SYNCHRONIZE ))) return;
2175
2176 if ((unix_fd = get_file_unix_fd( file )) != -1)
2177 {
2178 if ((unix_fd = dup( unix_fd )) != -1)
2179 queue->fd = create_anonymous_fd( &msg_queue_fd_ops, unix_fd, &queue->obj, 0 );
2180 else
2181 file_set_error();
2182 }
2183 release_object( file );
2184 }
2185
2186
2187 /* set the current message queue wakeup mask */
2188 DECL_HANDLER(set_queue_mask)
2189 {
2190 struct msg_queue *queue = get_current_queue();
2191
2192 if (queue)
2193 {
2194 queue->wake_mask = req->wake_mask;
2195 queue->changed_mask = req->changed_mask;
2196 reply->wake_bits = queue->wake_bits;
2197 reply->changed_bits = queue->changed_bits;
2198 if (is_signaled( queue ))
2199 {
2200 /* if skip wait is set, do what would have been done in the subsequent wait */
2201 if (req->skip_wait) msg_queue_satisfied( &queue->obj, current );
2202 else wake_up( &queue->obj, 0 );
2203 }
2204 }
2205 }
2206
2207
2208 /* get the current message queue status */
2209 DECL_HANDLER(get_queue_status)
2210 {
2211 struct msg_queue *queue = current->queue;
2212 if (queue)
2213 {
2214 reply->wake_bits = queue->wake_bits;
2215 reply->changed_bits = queue->changed_bits;
2216 if (req->clear) queue->changed_bits = 0;
2217 }
2218 else reply->wake_bits = reply->changed_bits = 0;
2219 }
2220
2221
2222 /* send a message to a thread queue */
2223 DECL_HANDLER(send_message)
2224 {
2225 struct message *msg;
2226 struct msg_queue *send_queue = get_current_queue();
2227 struct msg_queue *recv_queue = NULL;
2228 struct thread *thread = NULL;
2229
2230 if (!(thread = get_thread_from_id( req->id ))) return;
2231
2232 if (!(recv_queue = thread->queue))
2233 {
2234 set_error( STATUS_INVALID_PARAMETER );
2235 release_object( thread );
2236 return;
2237 }
2238 if ((req->flags & SEND_MSG_ABORT_IF_HUNG) && is_queue_hung(recv_queue))
2239 {
2240 set_error( STATUS_TIMEOUT );
2241 release_object( thread );
2242 return;
2243 }
2244
2245 if ((msg = mem_alloc( sizeof(*msg) )))
2246 {
2247 msg->type = req->type;
2248 msg->win = get_user_full_handle( req->win );
2249 msg->msg = req->msg;
2250 msg->wparam = req->wparam;
2251 msg->lparam = req->lparam;
2252 msg->time = get_tick_count();
2253 msg->result = NULL;
2254 msg->data = NULL;
2255 msg->data_size = get_req_data_size();
2256
2257 if (msg->data_size && !(msg->data = memdup( get_req_data(), msg->data_size )))
2258 {
2259 free( msg );
2260 release_object( thread );
2261 return;
2262 }
2263
2264 switch(msg->type)
2265 {
2266 case MSG_OTHER_PROCESS:
2267 case MSG_ASCII:
2268 case MSG_UNICODE:
2269 case MSG_CALLBACK:
2270 if (!(msg->result = alloc_message_result( send_queue, recv_queue, msg, req->timeout )))
2271 {
2272 free_message( msg );
2273 break;
2274 }
2275 /* fall through */
2276 case MSG_NOTIFY:
2277 list_add_tail( &recv_queue->msg_list[SEND_MESSAGE], &msg->entry );
2278 set_queue_bits( recv_queue, QS_SENDMESSAGE );
2279 break;
2280 case MSG_POSTED:
2281 list_add_tail( &recv_queue->msg_list[POST_MESSAGE], &msg->entry );
2282 set_queue_bits( recv_queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE );
2283 if (msg->msg == WM_HOTKEY)
2284 {
2285 set_queue_bits( recv_queue, QS_HOTKEY );
2286 recv_queue->hotkey_count++;
2287 }
2288 break;
2289 case MSG_HARDWARE: /* should use send_hardware_message instead */
2290 case MSG_CALLBACK_RESULT: /* cannot send this one */
2291 case MSG_HOOK_LL: /* generated internally */
2292 default:
2293 set_error( STATUS_INVALID_PARAMETER );
2294 free( msg );
2295 break;
2296 }
2297 }
2298 release_object( thread );
2299 }
2300
2301 /* send a hardware message to a thread queue */
2302 DECL_HANDLER(send_hardware_message)
2303 {
2304 struct thread *thread = NULL;
2305 struct desktop *desktop;
2306 struct msg_queue *sender = get_current_queue();
2307 data_size_t size = min( 256, get_reply_max_size() );
2308
2309 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2310
2311 if (req->win)
2312 {
2313 if (!(thread = get_window_thread( req->win ))) return;
2314 if (desktop != thread->queue->input->desktop)
2315 {
2316 /* don't allow queuing events to a different desktop */
2317 release_object( desktop );
2318 return;
2319 }
2320 }
2321
2322 reply->prev_x = desktop->cursor.x;
2323 reply->prev_y = desktop->cursor.y;
2324
2325 switch (req->input.type)
2326 {
2327 case INPUT_MOUSE:
2328 reply->wait = queue_mouse_message( desktop, req->win, &req->input, req->flags, sender );
2329 break;
2330 case INPUT_KEYBOARD:
2331 reply->wait = queue_keyboard_message( desktop, req->win, &req->input, req->flags, sender );
2332 break;
2333 case INPUT_HARDWARE:
2334 queue_custom_hardware_message( desktop, req->win, &req->input );
2335 break;
2336 default:
2337 set_error( STATUS_INVALID_PARAMETER );
2338 }
2339 if (thread) release_object( thread );
2340
2341 reply->new_x = desktop->cursor.x;
2342 reply->new_y = desktop->cursor.y;
2343 set_reply_data( desktop->keystate, size );
2344 release_object( desktop );
2345 }
2346
2347 /* post a quit message to the current queue */
2348 DECL_HANDLER(post_quit_message)
2349 {
2350 struct msg_queue *queue = get_current_queue();
2351
2352 if (!queue)
2353 return;
2354
2355 queue->quit_message = 1;
2356 queue->exit_code = req->exit_code;
2357 set_queue_bits( queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE );
2358 }
2359
2360 /* get a message from the current queue */
2361 DECL_HANDLER(get_message)
2362 {
2363 struct timer *timer;
2364 struct list *ptr;
2365 struct msg_queue *queue = get_current_queue();
2366 user_handle_t get_win = get_user_full_handle( req->get_win );
2367 unsigned int filter = req->flags >> 16;
2368
2369 reply->active_hooks = get_active_hooks();
2370
2371 if (!queue) return;
2372 queue->last_get_msg = current_time;
2373 if (!filter) filter = QS_ALLINPUT;
2374
2375 /* first check for sent messages */
2376 if ((ptr = list_head( &queue->msg_list[SEND_MESSAGE] )))
2377 {
2378 struct message *msg = LIST_ENTRY( ptr, struct message, entry );
2379 receive_message( queue, msg, reply );
2380 return;
2381 }
2382
2383 /* clear changed bits so we can wait on them if we don't find a message */
2384 if (filter & QS_POSTMESSAGE)
2385 {
2386 queue->changed_bits &= ~(QS_POSTMESSAGE | QS_HOTKEY | QS_TIMER);
2387 if (req->get_first == 0 && req->get_last == ~0U) queue->changed_bits &= ~QS_ALLPOSTMESSAGE;
2388 }
2389 if (filter & QS_INPUT) queue->changed_bits &= ~QS_INPUT;
2390 if (filter & QS_PAINT) queue->changed_bits &= ~QS_PAINT;
2391
2392 /* then check for posted messages */
2393 if ((filter & QS_POSTMESSAGE) &&
2394 get_posted_message( queue, get_win, req->get_first, req->get_last, req->flags, reply ))
2395 return;
2396
2397 if ((filter & QS_HOTKEY) && queue->hotkey_count &&
2398 req->get_first <= WM_HOTKEY && req->get_last >= WM_HOTKEY &&
2399 get_posted_message( queue, get_win, WM_HOTKEY, WM_HOTKEY, req->flags, reply ))
2400 return;
2401
2402 /* only check for quit messages if not posted messages pending.
2403 * note: the quit message isn't filtered */
2404 if (get_quit_message( queue, req->flags, reply ))
2405 return;
2406
2407 /* then check for any raw hardware message */
2408 if ((filter & QS_INPUT) &&
2409 filter_contains_hw_range( req->get_first, req->get_last ) &&
2410 get_hardware_message( current, req->hw_id, get_win, req->get_first, req->get_last, req->flags, reply ))
2411 return;
2412
2413 /* now check for WM_PAINT */
2414 if ((filter & QS_PAINT) &&
2415 queue->paint_count &&
2416 check_msg_filter( WM_PAINT, req->get_first, req->get_last ) &&
2417 (reply->win = find_window_to_repaint( get_win, current )))
2418 {
2419 reply->type = MSG_POSTED;
2420 reply->msg = WM_PAINT;
2421 reply->wparam = 0;
2422 reply->lparam = 0;
2423 reply->time = get_tick_count();
2424 return;
2425 }
2426
2427 /* now check for timer */
2428 if ((filter & QS_TIMER) &&
2429 (timer = find_expired_timer( queue, get_win, req->get_first,
2430 req->get_last, (req->flags & PM_REMOVE) )))
2431 {
2432 reply->type = MSG_POSTED;
2433 reply->win = timer->win;
2434 reply->msg = timer->msg;
2435 reply->wparam = timer->id;
2436 reply->lparam = timer->lparam;
2437 reply->time = get_tick_count();
2438 if (!(req->flags & PM_NOYIELD) && current->process->idle_event)
2439 set_event( current->process->idle_event );
2440 return;
2441 }
2442
2443 if (get_win == -1 && current->process->idle_event) set_event( current->process->idle_event );
2444 queue->wake_mask = req->wake_mask;
2445 queue->changed_mask = req->changed_mask;
2446 set_error( STATUS_PENDING ); /* FIXME */
2447 }
2448
2449
2450 /* reply to a sent message */
2451 DECL_HANDLER(reply_message)
2452 {
2453 if (!current->queue) set_error( STATUS_ACCESS_DENIED );
2454 else if (current->queue->recv_result)
2455 reply_message( current->queue, req->result, 0, req->remove,
2456 get_req_data(), get_req_data_size() );
2457 }
2458
2459
2460 /* accept the current hardware message */
2461 DECL_HANDLER(accept_hardware_message)
2462 {
2463 if (current->queue)
2464 release_hardware_message( current->queue, req->hw_id, req->remove, req->new_win );
2465 else
2466 set_error( STATUS_ACCESS_DENIED );
2467 }
2468
2469
2470 /* retrieve the reply for the last message sent */
2471 DECL_HANDLER(get_message_reply)
2472 {
2473 struct message_result *result;
2474 struct list *entry;
2475 struct msg_queue *queue = current->queue;
2476
2477 if (queue)
2478 {
2479 set_error( STATUS_PENDING );
2480 reply->result = 0;
2481
2482 if (!(entry = list_head( &queue->send_result ))) return; /* no reply ready */
2483
2484 result = LIST_ENTRY( entry, struct message_result, sender_entry );
2485 if (result->replied || req->cancel)
2486 {
2487 if (result->replied)
2488 {
2489 reply->result = result->result;
2490 set_error( result->error );
2491 if (result->data)
2492 {
2493 data_size_t data_len = min( result->data_size, get_reply_max_size() );
2494 set_reply_data_ptr( result->data, data_len );
2495 result->data = NULL;
2496 result->data_size = 0;
2497 }
2498 }
2499 remove_result_from_sender( result );
2500
2501 entry = list_head( &queue->send_result );
2502 if (!entry) clear_queue_bits( queue, QS_SMRESULT );
2503 else
2504 {
2505 result = LIST_ENTRY( entry, struct message_result, sender_entry );
2506 if (!result->replied) clear_queue_bits( queue, QS_SMRESULT );
2507 }
2508 }
2509 }
2510 else set_error( STATUS_ACCESS_DENIED );
2511 }
2512
2513
2514 /* set a window timer */
2515 DECL_HANDLER(set_win_timer)
2516 {
2517 struct timer *timer;
2518 struct msg_queue *queue;
2519 struct thread *thread = NULL;
2520 user_handle_t win = 0;
2521 lparam_t id = req->id;
2522
2523 if (req->win)
2524 {
2525 if (!(win = get_user_full_handle( req->win )) || !(thread = get_window_thread( win )))
2526 {
2527 set_error( STATUS_INVALID_HANDLE );
2528 return;
2529 }
2530 if (thread->process != current->process)
2531 {
2532 release_object( thread );
2533 set_error( STATUS_ACCESS_DENIED );
2534 return;
2535 }
2536 queue = thread->queue;
2537 /* remove it if it existed already */
2538 if ((timer = find_timer( queue, win, req->msg, id ))) free_timer( queue, timer );
2539 }
2540 else
2541 {
2542 queue = get_current_queue();
2543 /* look for a timer with this id */
2544 if (id && (timer = find_timer( queue, 0, req->msg, id )))
2545 {
2546 /* free and reuse id */
2547 free_timer( queue, timer );
2548 }
2549 else
2550 {
2551 /* find a free id for it */
2552 do
2553 {
2554 id = queue->next_timer_id;
2555 if (--queue->next_timer_id <= 0x100) queue->next_timer_id = 0x7fff;
2556 }
2557 while (find_timer( queue, 0, req->msg, id ));
2558 }
2559 }
2560
2561 if ((timer = set_timer( queue, req->rate )))
2562 {
2563 timer->win = win;
2564 timer->msg = req->msg;
2565 timer->id = id;
2566 timer->lparam = req->lparam;
2567 reply->id = id;
2568 }
2569 if (thread) release_object( thread );
2570 }
2571
2572 /* kill a window timer */
2573 DECL_HANDLER(kill_win_timer)
2574 {
2575 struct timer *timer;
2576 struct thread *thread;
2577 user_handle_t win = 0;
2578
2579 if (req->win)
2580 {
2581 if (!(win = get_user_full_handle( req->win )) || !(thread = get_window_thread( win )))
2582 {
2583 set_error( STATUS_INVALID_HANDLE );
2584 return;
2585 }
2586 if (thread->process != current->process)
2587 {
2588 release_object( thread );
2589 set_error( STATUS_ACCESS_DENIED );
2590 return;
2591 }
2592 }
2593 else thread = (struct thread *)grab_object( current );
2594
2595 if (thread->queue && (timer = find_timer( thread->queue, win, req->msg, req->id )))
2596 free_timer( thread->queue, timer );
2597 else
2598 set_error( STATUS_INVALID_PARAMETER );
2599
2600 release_object( thread );
2601 }
2602
2603 DECL_HANDLER(register_hotkey)
2604 {
2605 struct desktop *desktop;
2606 user_handle_t win_handle = req->window;
2607 struct hotkey *hotkey;
2608 struct hotkey *new_hotkey = NULL;
2609 struct thread *thread;
2610 const int modifier_flags = MOD_ALT|MOD_CONTROL|MOD_SHIFT|MOD_WIN;
2611
2612 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2613
2614 if (win_handle)
2615 {
2616 if (!get_user_object_handle( &win_handle, USER_WINDOW ))
2617 {
2618 release_object( desktop );
2619 set_win32_error( ERROR_INVALID_WINDOW_HANDLE );
2620 return;
2621 }
2622
2623 thread = get_window_thread( win_handle );
2624 if (thread) release_object( thread );
2625
2626 if (thread != current)
2627 {
2628 release_object( desktop );
2629 set_win32_error( ERROR_WINDOW_OF_OTHER_THREAD );
2630 return;
2631 }
2632 }
2633
2634 LIST_FOR_EACH_ENTRY( hotkey, &desktop->hotkeys, struct hotkey, entry )
2635 {
2636 if (req->vkey == hotkey->vkey &&
2637 (req->flags & modifier_flags) == (hotkey->flags & modifier_flags))
2638 {
2639 release_object( desktop );
2640 set_win32_error( ERROR_HOTKEY_ALREADY_REGISTERED );
2641 return;
2642 }
2643 if (current->queue == hotkey->queue && win_handle == hotkey->win && req->id == hotkey->id)
2644 new_hotkey = hotkey;
2645 }
2646
2647 if (new_hotkey)
2648 {
2649 reply->replaced = 1;
2650 reply->flags = new_hotkey->flags;
2651 reply->vkey = new_hotkey->vkey;
2652 }
2653 else
2654 {
2655 new_hotkey = mem_alloc( sizeof(*new_hotkey) );
2656 if (new_hotkey)
2657 {
2658 list_add_tail( &desktop->hotkeys, &new_hotkey->entry );
2659 new_hotkey->queue = current->queue;
2660 new_hotkey->win = win_handle;
2661 new_hotkey->id = req->id;
2662 }
2663 }
2664
2665 if (new_hotkey)
2666 {
2667 new_hotkey->flags = req->flags;
2668 new_hotkey->vkey = req->vkey;
2669 }
2670
2671 release_object( desktop );
2672 }
2673
2674 DECL_HANDLER(unregister_hotkey)
2675 {
2676 struct desktop *desktop;
2677 user_handle_t win_handle = req->window;
2678 struct hotkey *hotkey;
2679 struct thread *thread;
2680
2681 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2682
2683 if (win_handle)
2684 {
2685 if (!get_user_object_handle( &win_handle, USER_WINDOW ))
2686 {
2687 release_object( desktop );
2688 set_win32_error( ERROR_INVALID_WINDOW_HANDLE );
2689 return;
2690 }
2691
2692 thread = get_window_thread( win_handle );
2693 if (thread) release_object( thread );
2694
2695 if (thread != current)
2696 {
2697 release_object( desktop );
2698 set_win32_error( ERROR_WINDOW_OF_OTHER_THREAD );
2699 return;
2700 }
2701 }
2702
2703 LIST_FOR_EACH_ENTRY( hotkey, &desktop->hotkeys, struct hotkey, entry )
2704 {
2705 if (current->queue == hotkey->queue && win_handle == hotkey->win && req->id == hotkey->id)
2706 goto found;
2707 }
2708
2709 release_object( desktop );
2710 set_win32_error( ERROR_HOTKEY_NOT_REGISTERED );
2711 return;
2712
2713 found:
2714 reply->flags = hotkey->flags;
2715 reply->vkey = hotkey->vkey;
2716 list_remove( &hotkey->entry );
2717 free( hotkey );
2718 release_object( desktop );
2719 }
2720
2721 /* attach (or detach) thread inputs */
2722 DECL_HANDLER(attach_thread_input)
2723 {
2724 struct thread *thread_from = get_thread_from_id( req->tid_from );
2725 struct thread *thread_to = get_thread_from_id( req->tid_to );
2726
2727 if (!thread_from || !thread_to)
2728 {
2729 if (thread_from) release_object( thread_from );
2730 if (thread_to) release_object( thread_to );
2731 return;
2732 }
2733 if (thread_from != thread_to)
2734 {
2735 if (req->attach) attach_thread_input( thread_from, thread_to );
2736 else
2737 {
2738 if (thread_from->queue && thread_to->queue &&
2739 thread_from->queue->input == thread_to->queue->input)
2740 detach_thread_input( thread_from );
2741 else
2742 set_error( STATUS_ACCESS_DENIED );
2743 }
2744 }
2745 else set_error( STATUS_ACCESS_DENIED );
2746 release_object( thread_from );
2747 release_object( thread_to );
2748 }
2749
2750
2751 /* get thread input data */
2752 DECL_HANDLER(get_thread_input)
2753 {
2754 struct thread *thread = NULL;
2755 struct desktop *desktop;
2756 struct thread_input *input;
2757
2758 if (req->tid)
2759 {
2760 if (!(thread = get_thread_from_id( req->tid ))) return;
2761 if (!(desktop = get_thread_desktop( thread, 0 )))
2762 {
2763 release_object( thread );
2764 return;
2765 }
2766 input = thread->queue ? thread->queue->input : NULL;
2767 }
2768 else
2769 {
2770 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2771 input = desktop->foreground_input; /* get the foreground thread info */
2772 }
2773
2774 if (input)
2775 {
2776 reply->focus = input->focus;
2777 reply->capture = input->capture;
2778 reply->active = input->active;
2779 reply->menu_owner = input->menu_owner;
2780 reply->move_size = input->move_size;
2781 reply->caret = input->caret;
2782 reply->cursor = input->cursor;
2783 reply->show_count = input->cursor_count;
2784 reply->rect = input->caret_rect;
2785 }
2786
2787 /* foreground window is active window of foreground thread */
2788 reply->foreground = desktop->foreground_input ? desktop->foreground_input->active : 0;
2789 if (thread) release_object( thread );
2790 release_object( desktop );
2791 }
2792
2793
2794 /* retrieve queue keyboard state for a given thread */
2795 DECL_HANDLER(get_key_state)
2796 {
2797 struct thread *thread;
2798 struct desktop *desktop;
2799 data_size_t size = min( 256, get_reply_max_size() );
2800
2801 if (!req->tid) /* get global async key state */
2802 {
2803 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2804 if (req->key >= 0)
2805 {
2806 reply->state = desktop->keystate[req->key & 0xff];
2807 desktop->keystate[req->key & 0xff] &= ~0x40;
2808 }
2809 set_reply_data( desktop->keystate, size );
2810 release_object( desktop );
2811 }
2812 else
2813 {
2814 if (!(thread = get_thread_from_id( req->tid ))) return;
2815 if (thread->queue)
2816 {
2817 if (req->key >= 0) reply->state = thread->queue->input->keystate[req->key & 0xff];
2818 set_reply_data( thread->queue->input->keystate, size );
2819 }
2820 release_object( thread );
2821 }
2822 }
2823
2824
2825 /* set queue keyboard state for a given thread */
2826 DECL_HANDLER(set_key_state)
2827 {
2828 struct thread *thread;
2829 struct desktop *desktop;
2830 data_size_t size = min( 256, get_req_data_size() );
2831
2832 if (!req->tid) /* set global async key state */
2833 {
2834 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2835 memcpy( desktop->keystate, get_req_data(), size );
2836 release_object( desktop );
2837 }
2838 else
2839 {
2840 if (!(thread = get_thread_from_id( req->tid ))) return;
2841 if (thread->queue) memcpy( thread->queue->input->keystate, get_req_data(), size );
2842 if (req->async && (desktop = get_thread_desktop( thread, 0 )))
2843 {
2844 memcpy( desktop->keystate, get_req_data(), size );
2845 release_object( desktop );
2846 }
2847 release_object( thread );
2848 }
2849 }
2850
2851
2852 /* set the system foreground window */
2853 DECL_HANDLER(set_foreground_window)
2854 {
2855 struct thread *thread = NULL;
2856 struct desktop *desktop;
2857 struct msg_queue *queue = get_current_queue();
2858
2859 if (!(desktop = get_thread_desktop( current, 0 ))) return;
2860 reply->previous = desktop->foreground_input ? desktop->foreground_input->active : 0;
2861 reply->send_msg_old = (reply->previous && desktop->foreground_input != queue->input);
2862 reply->send_msg_new = FALSE;
2863
2864 if (is_top_level_window( req->handle ) &&
2865 ((thread = get_window_thread( req->handle ))) &&
2866 (thread->queue->input->desktop == desktop))
2867 {
2868 set_foreground_input( desktop, thread->queue->input );
2869 reply->send_msg_new = (desktop->foreground_input != queue->input);
2870 }
2871 else set_win32_error( ERROR_INVALID_WINDOW_HANDLE );
2872
2873 if (thread) release_object( thread );
2874 release_object( desktop );
2875 }
2876
2877
2878 /* set the current thread focus window */
2879 DECL_HANDLER(set_focus_window)
2880 {
2881 struct msg_queue *queue = get_current_queue();
2882
2883 reply->previous = 0;
2884 if (queue && check_queue_input_window( queue, req->handle ))
2885 {
2886 reply->previous = queue->input->focus;
2887 queue->input->focus = get_user_full_handle( req->handle );
2888 }
2889 }
2890
2891
2892 /* set the current thread active window */
2893 DECL_HANDLER(set_active_window)
2894 {
2895 struct msg_queue *queue = get_current_queue();
2896
2897 reply->previous = 0;
2898 if (queue && check_queue_input_window( queue, req->handle ))
2899 {
2900 if (!req->handle || make_window_active( req->handle ))
2901 {
2902 reply->previous = queue->input->active;
2903 queue->input->active = get_user_full_handle( req->handle );
2904 }
2905 else set_error( STATUS_INVALID_HANDLE );
2906 }
2907 }
2908
2909
2910 /* set the current thread capture window */
2911 DECL_HANDLER(set_capture_window)
2912 {
2913 struct msg_queue *queue = get_current_queue();
2914
2915 reply->previous = reply->full_handle = 0;
2916 if (queue && check_queue_input_window( queue, req->handle ))
2917 {
2918 struct thread_input *input = queue->input;
2919
2920 /* if in menu mode, reject all requests to change focus, except if the menu bit is set */
2921 if (input->menu_owner && !(req->flags & CAPTURE_MENU))
2922 {
2923 set_error(STATUS_ACCESS_DENIED);
2924 return;
2925 }
2926 reply->previous = input->capture;
2927 input->capture = get_user_full_handle( req->handle );
2928 input->menu_owner = (req->flags & CAPTURE_MENU) ? input->capture : 0;
2929 input->move_size = (req->flags & CAPTURE_MOVESIZE) ? input->capture : 0;
2930 reply->full_handle = input->capture;
2931 }
2932 }
2933
2934
2935 /* Set the current thread caret window */
2936 DECL_HANDLER(set_caret_window)
2937 {
2938 struct msg_queue *queue = get_current_queue();
2939
2940 reply->previous = 0;
2941 if (queue && check_queue_input_window( queue, req->handle ))
2942 {
2943 struct thread_input *input = queue->input;
2944
2945 reply->previous = input->caret;
2946 reply->old_rect = input->caret_rect;
2947 reply->old_hide = input->caret_hide;
2948 reply->old_state = input->caret_state;
2949
2950 set_caret_window( input, get_user_full_handle(req->handle) );
2951 input->caret_rect.right = input->caret_rect.left + req->width;
2952 input->caret_rect.bottom = input->caret_rect.top + req->height;
2953 }
2954 }
2955
2956
2957 /* Set the current thread caret information */
2958 DECL_HANDLER(set_caret_info)
2959 {
2960 struct msg_queue *queue = get_current_queue();
2961 struct thread_input *input;
2962
2963 if (!queue) return;
2964 input = queue->input;
2965 reply->full_handle = input->caret;
2966 reply->old_rect = input->caret_rect;
2967 reply->old_hide = input->caret_hide;
2968 reply->old_state = input->caret_state;
2969
2970 if (req->handle && get_user_full_handle(req->handle) != input->caret)
2971 {
2972 set_error( STATUS_ACCESS_DENIED );
2973 return;
2974 }
2975 if (req->flags & SET_CARET_POS)
2976 {
2977 input->caret_rect.right += req->x - input->caret_rect.left;
2978 input->caret_rect.bottom += req->y - input->caret_rect.top;
2979 input->caret_rect.left = req->x;
2980 input->caret_rect.top = req->y;
2981 }
2982 if (req->flags & SET_CARET_HIDE)
2983 {
2984 input->caret_hide += req->hide;
2985 if (input->caret_hide < 0) input->caret_hide = 0;
2986 }
2987 if (req->flags & SET_CARET_STATE)
2988 {
2989 if (req->state == -1) input->caret_state = !input->caret_state;
2990 else input->caret_state = !!req->state;
2991 }
2992 }
2993
2994
2995 /* get the time of the last input event */
2996 DECL_HANDLER(get_last_input_time)
2997 {
2998 reply->time = last_input_time;
2999 }
3000
3001 /* set/get the current cursor */
3002 DECL_HANDLER(set_cursor)
3003 {
3004 struct msg_queue *queue = get_current_queue();
3005 struct thread_input *input;
3006
3007 if (!queue) return;
3008 input = queue->input;
3009
3010 reply->prev_handle = input->cursor;
3011 reply->prev_count = input->cursor_count;
3012 reply->prev_x = input->desktop->cursor.x;
3013 reply->prev_y = input->desktop->cursor.y;
3014
3015 if (req->flags & SET_CURSOR_HANDLE)
3016 {
3017 if (req->handle && !get_user_object( req->handle, USER_CLIENT ))
3018 {
3019 set_win32_error( ERROR_INVALID_CURSOR_HANDLE );
3020 return;
3021 }
3022 input->cursor = req->handle;
3023 }
3024 if (req->flags & SET_CURSOR_COUNT)
3025 {
3026 queue->cursor_count += req->show_count;
3027 input->cursor_count += req->show_count;
3028 }
3029 if (req->flags & SET_CURSOR_POS)
3030 {
3031 set_cursor_pos( input->desktop, req->x, req->y );
3032 }
3033 if (req->flags & (SET_CURSOR_CLIP | SET_CURSOR_NOCLIP))
3034 {
3035 struct desktop *desktop = input->desktop;
3036
3037 /* only the desktop owner can set the message */
3038 if (req->clip_msg && get_top_window_owner(desktop) == current->process)
3039 desktop->cursor.clip_msg = req->clip_msg;
3040
3041 set_clip_rectangle( desktop, (req->flags & SET_CURSOR_NOCLIP) ? NULL : &req->clip );
3042 }
3043
3044 reply->new_x = input->desktop->cursor.x;
3045 reply->new_y = input->desktop->cursor.y;
3046 reply->new_clip = input->desktop->cursor.clip;
3047 reply->last_change = input->desktop->cursor.last_change;
3048 }
3049
3050 DECL_HANDLER(update_rawinput_devices)
3051 {
3052 const struct rawinput_device *devices = get_req_data();
3053 unsigned int device_count = get_req_data_size() / sizeof (*devices);
3054 const struct rawinput_device_entry *e;
3055 unsigned int i;
3056
3057 for (i = 0; i < device_count; ++i)
3058 {
3059 update_rawinput_device(&devices[i]);
3060 }
3061
3062 e = find_rawinput_device( 1, 2 );
3063 current->process->rawinput_mouse = e ? &e->device : NULL;
3064 e = find_rawinput_device( 1, 6 );
3065 current->process->rawinput_kbd = e ? &e->device : NULL;
3066 }
Windows API implementation