1 /***************************************************************************
4 * Copyright (C) 2008 Henrik Rydberg <rydberg@euromail.se>
5 * Copyright (C) 2011 Ryan Bourgeois <bluedragonx@gmail.com>
8 * Copyright (C) 2008 Henrik Rydberg <rydberg@euromail.se>
9 * Copyright (C) 2010 Arturo Castro <mail@arturocastro.net>
10 * Copyright (C) 2011 Ryan Bourgeois <bluedragonx@gmail.com>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 **************************************************************************/
32 #define IS_VALID_BUTTON(x) (x >= 0 && x <= 31)
34 static void trigger_button_up(struct Gestures* gs, int button)
36 if (IS_VALID_BUTTON(button)) {
37 if (button == 0 && gs->button_emulate > 0) {
38 button = gs->button_emulate;
39 gs->button_emulate = 0;
41 CLEARBIT(gs->buttons, button);
43 xf86Msg(X_INFO, "trigger_button_up: %d up\n", button);
48 static void trigger_button_down(struct Gestures* gs, int button)
53 if (IS_VALID_BUTTON(button) && (button != gs->button_delayed || timercmp(&gs->button_delayed_time, &epoch, ==))) {
54 SETBIT(gs->buttons, button);
56 xf86Msg(X_INFO, "trigger_button_down: %d down\n", button);
60 else if (IS_VALID_BUTTON(button))
61 xf86Msg(X_INFO, "trigger_button_down: %d down ignored, in delayed mode\n", button);
65 static void trigger_button_emulation(struct Gestures* gs, int button)
67 if (IS_VALID_BUTTON(button) && GETBIT(gs->buttons, 0)) {
68 CLEARBIT(gs->buttons, 0);
69 SETBIT(gs->buttons, button);
70 gs->button_emulate = button;
72 xf86Msg(X_INFO, "trigger_button_emulation: %d emulated\n", button);
77 static void trigger_button_click(struct Gestures* gs,
78 int button, struct timeval* trigger_up_time)
83 if (IS_VALID_BUTTON(button) && timercmp(&gs->button_delayed_time, &epoch, ==)) {
84 trigger_button_down(gs, button);
85 gs->button_delayed = button;
86 timercp(&gs->button_delayed_time, trigger_up_time);
87 timerclear(&gs->button_delayed_delta);
89 xf86Msg(X_INFO, "trigger_button_click: %d placed in delayed mode\n");
93 else if (IS_VALID_BUTTON(button))
94 xf86Msg(X_INFO, "trigger_button_click: %d ignored, in delayed mode\n", button);
98 static void trigger_drag_ready(struct Gestures* gs,
99 const struct MConfig* cfg)
101 gs->move_drag = GS_DRAG_READY;
102 timeraddms(&gs->time, cfg->drag_timeout, &gs->move_drag_expire);
103 #ifdef DEBUG_GESTURES
104 xf86Msg(X_INFO, "trigger_drag_ready: drag is ready\n");
108 static int trigger_drag_start(struct Gestures* gs,
109 const struct MConfig* cfg,
112 if (gs->move_drag == GS_DRAG_READY) {
113 timerclear(&gs->move_drag_expire);
114 if (cfg->drag_wait == 0) {
115 gs->move_drag = GS_DRAG_ACTIVE;
116 trigger_button_down(gs, 0);
117 #ifdef DEBUG_GESTURES
118 xf86Msg(X_INFO, "trigger_drag_start: drag is active\n");
122 gs->move_drag = GS_DRAG_WAIT;
123 gs->move_drag_dx = dx;
124 gs->move_drag_dy = dy;
125 timeraddms(&gs->time, cfg->drag_wait, &gs->move_drag_wait);
126 #ifdef DEBUG_GESTURES
127 xf86Msg(X_INFO, "trigger_drag_start: drag in wait\n");
131 else if (gs->move_drag == GS_DRAG_WAIT) {
132 gs->move_drag_dx += dx;
133 gs->move_drag_dy += dy;
134 if (!timercmp(&gs->time, &gs->move_drag_wait, <)) {
135 gs->move_drag = GS_DRAG_ACTIVE;
136 trigger_button_down(gs, 0);
137 #ifdef DEBUG_GESTURES
138 xf86Msg(X_INFO, "trigger_drag_start: drag is active\n");
141 else if (dist2(gs->move_drag_dx, gs->move_drag_dy) > SQRVAL(cfg->drag_dist)) {
142 gs->move_drag = GS_NONE;
143 #ifdef DEBUG_GESTURES
144 xf86Msg(X_INFO, "trigger_drag_start: drag canceled, moved too far\n");
148 return gs->move_drag != GS_DRAG_WAIT;
151 static void trigger_drag_stop(struct Gestures* gs, int force)
153 if (gs->move_drag == GS_DRAG_READY && force) {
154 gs->move_drag = GS_NONE;
155 timerclear(&gs->move_drag_expire);
156 #ifdef DEBUG_GESTURES
157 xf86Msg(X_INFO, "trigger_drag_stop: drag canceled\n");
160 else if (gs->move_drag == GS_DRAG_ACTIVE) {
161 gs->move_drag = GS_NONE;
162 timerclear(&gs->move_drag_expire);
163 trigger_button_up(gs, 0);
164 #ifdef DEBUG_GESTURES
165 xf86Msg(X_INFO, "trigger_drag_stop: drag stopped\n");
170 static void buttons_update(struct Gestures* gs,
171 const struct MConfig* cfg,
172 const struct HWState* hs,
175 if (!cfg->button_enable || cfg->trackpad_disable >= 3)
178 static bitmask_t button_prev = 0U;
179 int i, down, emulate, touching;
181 emulate = GETBIT(hs->button, 0) && !GETBIT(button_prev, 0);
183 for (i = 0; i < 32; i++) {
184 if (GETBIT(hs->button, i) == GETBIT(button_prev, i))
186 if (GETBIT(hs->button, i)) {
188 trigger_button_down(gs, i);
191 trigger_button_up(gs, i);
193 button_prev = hs->button;
196 int earliest, latest, moving = 0;
197 gs->move_type = GS_NONE;
198 timeraddms(&gs->time, cfg->gesture_wait, &gs->move_wait);
201 foreach_bit(i, ms->touch_used) {
202 if (GETBIT(ms->touch[i].state, MT_INVALID))
204 if (cfg->button_integrated && !GETBIT(ms->touch[i].flags, GS_BUTTON))
205 SETBIT(ms->touch[i].flags, GS_BUTTON);
206 if (earliest == -1 || timercmp(&ms->touch[i].down, &ms->touch[earliest].down, <))
208 if (latest == -1 || timercmp(&ms->touch[i].down, &ms->touch[latest].down, >))
213 if (cfg->button_zones && earliest >= 0) {
214 int zones, left, right, pos;
218 if (cfg->button_1touch > 0)
220 if (cfg->button_2touch > 0)
222 if (cfg->button_3touch > 0)
226 width = ((double)cfg->pad_width)/((double)zones);
227 pos = cfg->pad_width / 2 + ms->touch[earliest].x;
228 #ifdef DEBUG_GESTURES
229 xf86Msg(X_INFO, "buttons_update: pad width %d, zones %d, zone width %f, x %d\n",
230 cfg->pad_width, zones, width, pos);
232 for (i = 0; i < zones; i++) {
235 if (pos >= left && pos <= right) {
236 #ifdef DEBUG_GESTURES
237 xf86Msg(X_INFO, "buttons_update: button %d, left %d, right %d (found)\n", i, left, right);
241 #ifdef DEBUG_GESTURES
243 xf86Msg(X_INFO, "buttons_update: button %d, left %d, right %d\n", i, left, right);
248 trigger_button_emulation(gs, cfg->button_1touch - 1);
250 trigger_button_emulation(gs, cfg->button_2touch - 1);
252 trigger_button_emulation(gs, cfg->button_3touch - 1);
255 else if (latest >= 0) {
257 struct timeval expire;
258 foreach_bit(i, ms->touch_used) {
259 timeraddms(&ms->touch[i].down, cfg->button_expire, &expire);
260 if (cfg->button_move || cfg->button_expire == 0 || timercmp(&ms->touch[latest].down, &expire, <))
264 if (cfg->button_integrated)
267 if (touching == 1 && cfg->button_1touch > 0)
268 trigger_button_emulation(gs, cfg->button_1touch - 1);
269 else if (touching == 2 && cfg->button_2touch > 0)
270 trigger_button_emulation(gs, cfg->button_2touch - 1);
271 else if (touching == 3 && cfg->button_3touch > 0)
272 trigger_button_emulation(gs, cfg->button_3touch - 1);
278 static void tapping_update(struct Gestures* gs,
279 const struct MConfig* cfg,
282 int i, n, dist, released_max;
283 struct timeval tv_tmp;
284 struct timeval epoch;
286 if (cfg->trackpad_disable >= 1)
289 if (cfg->tap_4touch > 0)
291 else if (cfg->tap_3touch > 0)
293 else if (cfg->tap_2touch > 0)
295 else if (cfg->tap_1touch > 0)
301 timeraddms(&gs->tap_time_down, cfg->tap_timeout, &tv_tmp);
302 if (!timercmp(&gs->tap_time_down, &epoch, ==) && !timercmp(&gs->time, &tv_tmp, <)) {
303 gs->tap_touching = 0;
304 gs->tap_released = 0;
305 timerclear(&gs->tap_time_down);
307 foreach_bit(i, ms->touch_used) {
308 if (GETBIT(ms->touch[i].flags, GS_TAP))
309 CLEARBIT(ms->touch[i].flags, GS_TAP);
313 foreach_bit(i, ms->touch_used) {
314 if (GETBIT(ms->touch[i].state, MT_INVALID) || GETBIT(ms->touch[i].flags, GS_BUTTON)) {
315 if (GETBIT(ms->touch[i].flags, GS_TAP)) {
316 CLEARBIT(ms->touch[i].flags, GS_TAP);
318 #ifdef DEBUG_GESTURES
319 xf86Msg(X_INFO, "tapping_update: tap_touching-- (%d): invalid or button\n", gs->tap_touching);
324 if (GETBIT(ms->touch[i].state, MT_NEW)) {
325 SETBIT(ms->touch[i].flags, GS_TAP);
327 #ifdef DEBUG_GESTURES
328 xf86Msg(X_INFO, "tapping_update: tap_touching++ (%d): new touch\n", gs->tap_touching);
331 if (timercmp(&gs->tap_time_down, &epoch, ==))
332 timercp(&gs->tap_time_down, &gs->time);
335 if (GETBIT(ms->touch[i].flags, GS_TAP)) {
336 dist = dist2(ms->touch[i].total_dx, ms->touch[i].total_dy);
337 if (dist >= SQRVAL(cfg->tap_dist)) {
338 CLEARBIT(ms->touch[i].flags, GS_TAP);
340 #ifdef DEBUG_GESTURES
341 xf86Msg(X_INFO, "tapping_update: tap_touching-- (%d): moved too far\n", gs->tap_touching);
344 else if (GETBIT(ms->touch[i].state, MT_RELEASED)) {
347 #ifdef DEBUG_GESTURES
348 xf86Msg(X_INFO, "tapping_update: tap_touching-- (%d): released\n", gs->tap_touching);
349 xf86Msg(X_INFO, "tapping_update: tap_released++ (%d) (max %d): released\n", gs->tap_released, released_max);
357 if ((gs->tap_touching == 0 && gs->tap_released > 0) || gs->tap_released >= released_max) {
358 foreach_bit(i, ms->touch_used) {
359 if (GETBIT(ms->touch[i].flags, GS_TAP))
360 CLEARBIT(ms->touch[i].flags, GS_TAP);
363 if (gs->tap_released == 1)
364 n = cfg->tap_1touch - 1;
365 else if (gs->tap_released == 2)
366 n = cfg->tap_2touch - 1;
367 else if (gs->tap_released == 3)
368 n = cfg->tap_3touch - 1;
370 n = cfg->tap_4touch - 1;
372 trigger_button_click(gs, n, &tv_tmp);
373 if (cfg->drag_enable && n == 0)
374 trigger_drag_ready(gs, cfg);
376 gs->move_type = GS_NONE;
377 timeraddms(&gs->time, cfg->gesture_wait, &gs->move_wait);
379 gs->tap_touching = 0;
380 gs->tap_released = 0;
381 timerclear(&gs->tap_time_down);
385 static void trigger_move(struct Gestures* gs,
386 const struct MConfig* cfg,
389 if ((gs->move_type == GS_MOVE || !timercmp(&gs->time, &gs->move_wait, <)) && (dx != 0 || dy != 0)) {
390 if (trigger_drag_start(gs, cfg, dx, dy)) {
391 gs->move_dx = (int)(dx*cfg->sensitivity);
392 gs->move_dy = (int)(dy*cfg->sensitivity);
393 gs->move_type = GS_MOVE;
395 gs->move_dir = TR_NONE;
396 gs->move_speed = hypot(gs->move_dx, gs->move_dy)/timertomicro(&gs->dt);
397 timerclear(&gs->move_wait);
398 #ifdef DEBUG_GESTURES
399 xf86Msg(X_INFO, "trigger_move: %d, %d (speed %f)\n",
400 gs->move_dx, gs->move_dy, gs->move_speed);
406 static void trigger_scroll(struct Gestures* gs,
407 const struct MConfig* cfg,
408 double dist, int dir)
410 if (gs->move_type == GS_SCROLL || !timercmp(&gs->time, &gs->move_wait, <)) {
411 struct timeval tv_tmp;
412 trigger_drag_stop(gs, 1);
413 if (gs->move_type != GS_SCROLL || gs->move_dir != dir)
417 gs->move_type = GS_SCROLL;
418 gs->move_dist += (int)ABSVAL(dist);
420 gs->move_speed = dist/timertomicro(&gs->dt);
421 timeraddms(&gs->time, cfg->gesture_wait, &gs->move_wait);
423 if (gs->move_dist >= cfg->scroll_dist) {
424 gs->move_dist = MODVAL(gs->move_dist, cfg->scroll_dist);
425 timeraddms(&gs->time, cfg->gesture_hold, &tv_tmp);
426 if (dir == TR_DIR_UP)
427 trigger_button_click(gs, cfg->scroll_up_btn - 1, &tv_tmp);
428 else if (dir == TR_DIR_DN)
429 trigger_button_click(gs, cfg->scroll_dn_btn - 1, &tv_tmp);
430 else if (dir == TR_DIR_LT)
431 trigger_button_click(gs, cfg->scroll_lt_btn - 1, &tv_tmp);
432 else if (dir == TR_DIR_RT)
433 trigger_button_click(gs, cfg->scroll_rt_btn - 1, &tv_tmp);
435 #ifdef DEBUG_GESTURES
436 xf86Msg(X_INFO, "trigger_scroll: scrolling %+f in direction %d (at %d of %d) (speed %f)\n",
437 dist, dir, gs->move_dist, cfg->scroll_dist, gs->move_speed);
442 static void trigger_swipe(struct Gestures* gs,
443 const struct MConfig* cfg,
444 double dist, int dir, int isfour)
446 if (gs->move_type == GS_SWIPE || !timercmp(&gs->time, &gs->move_wait, <)) {
447 struct timeval tv_tmp;
448 trigger_drag_stop(gs, 1);
449 if (gs->move_type != GS_SWIPE || gs->move_dir != dir)
453 gs->move_type = GS_SWIPE;
454 gs->move_dist += (int)ABSVAL(dist);
456 gs->move_speed = dist/timertomicro(&gs->dt);
457 timeraddms(&gs->time, cfg->gesture_wait, &gs->move_wait);
458 timeraddms(&gs->time, cfg->gesture_hold, &tv_tmp);
461 if (cfg->swipe4_dist > 0 && gs->move_dist >= cfg->swipe4_dist) {
462 gs->move_dist = MODVAL(gs->move_dist, cfg->swipe4_dist);
463 if (dir == TR_DIR_UP)
464 trigger_button_click(gs, cfg->swipe4_up_btn - 1, &tv_tmp);
465 else if (dir == TR_DIR_DN)
466 trigger_button_click(gs, cfg->swipe4_dn_btn - 1, &tv_tmp);
467 else if (dir == TR_DIR_LT)
468 trigger_button_click(gs, cfg->swipe4_lt_btn - 1, &tv_tmp);
469 else if (dir == TR_DIR_RT)
470 trigger_button_click(gs, cfg->swipe4_rt_btn - 1, &tv_tmp);
472 #ifdef DEBUG_GESTURES
473 xf86Msg(X_INFO, "trigger_swipe4: swiping %+f in direction %d (at %d of %d) (speed %f)\n",
474 dist, dir, gs->move_dist, cfg->swipe_dist, gs->move_speed);
478 if (cfg->swipe_dist > 0 && gs->move_dist >= cfg->swipe_dist) {
479 gs->move_dist = MODVAL(gs->move_dist, cfg->swipe_dist);
480 if (dir == TR_DIR_UP)
481 trigger_button_click(gs, cfg->swipe_up_btn - 1, &tv_tmp);
482 else if (dir == TR_DIR_DN)
483 trigger_button_click(gs, cfg->swipe_dn_btn - 1, &tv_tmp);
484 else if (dir == TR_DIR_LT)
485 trigger_button_click(gs, cfg->swipe_lt_btn - 1, &tv_tmp);
486 else if (dir == TR_DIR_RT)
487 trigger_button_click(gs, cfg->swipe_rt_btn - 1, &tv_tmp);
489 #ifdef DEBUG_GESTURES
490 xf86Msg(X_INFO, "trigger_swipe: swiping %+f in direction %d (at %d of %d)\n", dist, dir, gs->move_dist, cfg->swipe_dist);
496 static void trigger_scale(struct Gestures* gs,
497 const struct MConfig* cfg,
498 double dist, int dir)
500 if (gs->move_type == GS_SCALE || !timercmp(&gs->time, &gs->move_wait, <)) {
501 struct timeval tv_tmp;
502 trigger_drag_stop(gs, 1);
503 if (gs->move_type != GS_SCALE || gs->move_dir != dir)
507 gs->move_type = GS_SCALE;
508 gs->move_dist += (int)ABSVAL(dist);
510 gs->move_speed = dist/timertomicro(&gs->dt);
511 timeraddms(&gs->time, cfg->gesture_wait, &gs->move_wait);
512 if (gs->move_dist >= cfg->scale_dist) {
513 gs->move_dist = MODVAL(gs->move_dist, cfg->scale_dist);
514 timeraddms(&gs->time, cfg->gesture_hold, &tv_tmp);
515 if (dir == TR_DIR_UP)
516 trigger_button_click(gs, cfg->scale_up_btn - 1, &tv_tmp);
517 else if (dir == TR_DIR_DN)
518 trigger_button_click(gs, cfg->scale_dn_btn - 1, &tv_tmp);
520 #ifdef DEBUG_GESTURES
521 xf86Msg(X_INFO, "trigger_scale: scaling %+f in direction %d (at %d of %d) (speed %f)\n",
522 dist, dir, gs->move_dist, cfg->scale_dist, gs->move_speed);
527 static void trigger_rotate(struct Gestures* gs,
528 const struct MConfig* cfg,
529 double dist, int dir)
531 if (gs->move_type == GS_ROTATE || !timercmp(&gs->time, &gs->move_wait, <)) {
532 struct timeval tv_tmp;
533 trigger_drag_stop(gs, 1);
534 if (gs->move_type != GS_ROTATE || gs->move_dir != dir)
538 gs->move_type = GS_ROTATE;
539 gs->move_dist += (int)ABSVAL(dist);
541 gs->move_speed = dist/timertomicro(&gs->dt);
542 timeraddms(&gs->time, cfg->gesture_wait, &gs->move_wait);
543 if (gs->move_dist >= cfg->rotate_dist) {
544 gs->move_dist = MODVAL(gs->move_dist, cfg->rotate_dist);
545 timeraddms(&gs->time, cfg->gesture_hold, &tv_tmp);
546 if (dir == TR_DIR_LT)
547 trigger_button_click(gs, cfg->rotate_lt_btn - 1, &tv_tmp);
548 else if (dir == TR_DIR_RT)
549 trigger_button_click(gs, cfg->rotate_rt_btn - 1, &tv_tmp);
551 #ifdef DEBUG_GESTURES
552 xf86Msg(X_INFO, "trigger_rotate: rotating %+f in direction %d (at %d of %d) (speed %f)\n",
553 dist, dir, gs->move_dist, cfg->rotate_dist, gs->move_speed);
558 static void trigger_reset(struct Gestures* gs)
560 trigger_drag_stop(gs, 0);
563 gs->move_type = GS_NONE;
565 gs->move_dir = TR_NONE;
566 timerclear(&gs->move_wait);
569 static int get_scroll_dir(const struct Touch* t1,
570 const struct Touch* t2)
572 if (trig_angles_acute(t1->direction, t2->direction) < 2.0) {
574 angles[0] = t1->direction;
575 angles[1] = t2->direction;
576 return trig_generalize(trig_angles_avg(angles, 2));
581 static int get_rotate_dir(const struct Touch* t1,
582 const struct Touch* t2)
585 v = trig_direction(t2->x - t1->x, t2->y - t1->y);
586 d1 = trig_angles_add(v, 2);
587 d2 = trig_angles_sub(v, 2);
588 if (trig_angles_acute(t1->direction, d1) < 2 && trig_angles_acute(t2->direction, d2) < 2)
590 else if (trig_angles_acute(t1->direction, d2) < 2 && trig_angles_acute(t2->direction, d1) < 2)
595 static int get_scale_dir(const struct Touch* t1,
596 const struct Touch* t2)
599 if (trig_angles_acute(t1->direction, t2->direction) >= 2) {
600 v = trig_direction(t2->x - t1->x, t2->y - t1->y);
601 if (trig_angles_acute(v, t1->direction) < 2)
609 static int get_swipe_dir(const struct Touch* t1,
610 const struct Touch* t2,
611 const struct Touch* t3)
614 angles[0] = t1->direction;
615 angles[1] = t2->direction;
616 angles[2] = t3->direction;
617 return trig_generalize(trig_angles_avg(angles, 3));
620 static int get_swipe4_dir(const struct Touch* t1,
621 const struct Touch* t2,
622 const struct Touch* t3,
623 const struct Touch* t4)
626 angles[0] = t1->direction;
627 angles[1] = t2->direction;
628 angles[2] = t3->direction;
629 angles[3] = t4->direction;
630 return trig_generalize(trig_angles_avg(angles, 4));
633 static void moving_update(struct Gestures* gs,
634 const struct MConfig* cfg,
637 int i, count, btn_count, dx, dy, dir;
639 struct Touch* touches[4];
640 count = btn_count = 0;
648 // Count touches and aggregate touch movements.
649 foreach_bit(i, ms->touch_used) {
650 if (GETBIT(ms->touch[i].state, MT_INVALID))
652 else if (GETBIT(ms->touch[i].flags, GS_BUTTON)) {
654 dx += ms->touch[i].dx;
655 dy += ms->touch[i].dy;
657 else if (!GETBIT(ms->touch[i].flags, GS_TAP)) {
659 touches[count++] = &ms->touch[i];
663 // Determine gesture type.
665 if (btn_count >= 1 && cfg->trackpad_disable < 2)
666 trigger_move(gs, cfg, dx, dy);
667 else if (btn_count < 1)
670 else if (count == 1 && cfg->trackpad_disable < 2) {
671 dx += touches[0]->dx;
672 dy += touches[0]->dy;
673 trigger_move(gs, cfg, dx, dy);
675 else if (count == 2 && cfg->trackpad_disable < 1) {
676 // scroll, scale, or rotate
677 if ((dir = get_scroll_dir(touches[0], touches[1])) != TR_NONE) {
679 touches[0]->dx + touches[1]->dx,
680 touches[0]->dy + touches[1]->dy);
681 trigger_scroll(gs, cfg, dist/2, dir);
683 else if ((dir = get_rotate_dir(touches[0], touches[1])) != TR_NONE) {
684 dist = ABSVAL(hypot(touches[0]->dx, touches[0]->dy)) +
685 ABSVAL(hypot(touches[1]->dx, touches[1]->dy));
686 trigger_rotate(gs, cfg, dist/2, dir);
688 else if ((dir = get_scale_dir(touches[0], touches[1])) != TR_NONE) {
689 dist = ABSVAL(hypot(touches[0]->dx, touches[0]->dy)) +
690 ABSVAL(hypot(touches[1]->dx, touches[1]->dy));
691 trigger_scale(gs, cfg, dist/2, dir);
694 else if (count == 3 && cfg->trackpad_disable < 1) {
695 if ((dir = get_swipe_dir(touches[0], touches[1], touches[2])) != TR_NONE) {
697 touches[0]->dx + touches[1]->dx + touches[2]->dx,
698 touches[0]->dy + touches[1]->dy + touches[2]->dy);
699 trigger_swipe(gs, cfg, dist/3, dir, 0);
702 else if (count == 4 && cfg->trackpad_disable < 1) {
703 if ((dir = get_swipe4_dir(touches[0], touches[1], touches[2], touches[3])) != TR_NONE) {
705 touches[0]->dx + touches[1]->dx + touches[2]->dx + touches[3]->dx,
706 touches[0]->dy + touches[1]->dy + touches[2]->dy + touches[3]->dy);
707 trigger_swipe(gs, cfg, dist/4, dir, 1);
712 static void dragging_update(struct Gestures* gs)
714 if (gs->move_drag == GS_DRAG_READY && timercmp(&gs->time, &gs->move_drag_expire, >)) {
715 #ifdef DEBUG_GESTURES
716 xf86Msg(X_INFO, "dragging_update: drag expired\n");
718 trigger_drag_stop(gs, 1);
722 static void delayed_update(struct Gestures* gs)
724 struct timeval epoch;
727 if (timercmp(&gs->button_delayed_time, &epoch, ==))
730 if (!timercmp(&gs->time, &gs->button_delayed_time, <)) {
731 #ifdef DEBUG_GESTURES
732 xf86Msg(X_INFO, "delayed_update: %d delay expired, triggering up\n", gs->button_delayed);
734 trigger_button_up(gs, gs->button_delayed);
735 gs->button_delayed = 0;
736 timerclear(&gs->button_delayed_time);
737 timerclear(&gs->button_delayed_delta);
740 timersub(&gs->button_delayed_time, &gs->time, &gs->button_delayed_delta);
744 void gestures_init(struct MTouch* mt)
746 memset(&mt->gs, 0, sizeof(struct Gestures));
749 void gestures_extract(struct MTouch* mt)
751 timersub(&mt->hs.evtime, &mt->gs.time, &mt->gs.dt);
752 timercp(&mt->gs.time, &mt->hs.evtime);
754 dragging_update(&mt->gs);
755 buttons_update(&mt->gs, &mt->cfg, &mt->hs, &mt->state);
756 tapping_update(&mt->gs, &mt->cfg, &mt->state);
757 moving_update(&mt->gs, &mt->cfg, &mt->state);
758 delayed_update(&mt->gs);
761 static int gestures_sleep(struct MTouch* mt, const struct timeval* sleep)
763 if (mtdev_empty(&mt->dev)) {
765 mtdev_idle(&mt->dev, mt->fd, timertoms(sleep));
767 timersub(&now, &mt->gs.time, &mt->gs.dt);
768 timercp(&mt->gs.time, &now);
774 int gestures_delayed(struct MTouch* mt)
776 struct Gestures* gs = &mt->gs;
777 struct timeval epoch;
780 if (timercmp(&gs->button_delayed_time, &epoch, >)) {
781 if (gestures_sleep(mt, &gs->button_delayed_delta)) {
782 #ifdef DEBUG_GESTURES
783 xf86Msg(X_INFO, "gestures_delayed: %d up, timer expired\n", gs->button_delayed);
785 trigger_button_up(gs, gs->button_delayed);
788 gs->button_delayed = 0;
789 timerclear(&gs->button_delayed_time);
790 timerclear(&gs->button_delayed_delta);