]> git.gir.st - tmk_keyboard.git/blob - common/action.c
Merge branch 'locking_caps'
[tmk_keyboard.git] / common / action.c
1 /*
2 Copyright 2012,2013 Jun Wako <wakojun@gmail.com>
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 2 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17 #include "host.h"
18 #include "timer.h"
19 #include "keymap.h"
20 #include "keycode.h"
21 #include "keyboard.h"
22 #include "mousekey.h"
23 #include "command.h"
24 #include "util.h"
25 #include "debug.h"
26 #include "led.h"
27 #include "layer_switch.h"
28 #include "action_macro.h"
29 #include "action.h"
30
31
32 static void process_action(keyrecord_t *record);
33 static bool process_tapping(keyrecord_t *record);
34 static void waiting_buffer_scan_tap(void);
35
36 static void debug_event(keyevent_t event);
37 static void debug_record(keyrecord_t record);
38 static void debug_action(action_t action);
39 static void debug_tapping_key(void);
40 static void debug_waiting_buffer(void);
41
42
43 /*
44 * Tapping
45 */
46 /* period of tapping(ms) */
47 #ifndef TAPPING_TERM
48 #define TAPPING_TERM 200
49 #endif
50
51 /* tap count needed for toggling a feature */
52 #ifndef TAPPING_TOGGLE
53 #define TAPPING_TOGGLE 5
54 #endif
55
56 /* stores a key event of current tap. */
57 static keyrecord_t tapping_key = {};
58
59 #define IS_TAPPING() !IS_NOEVENT(tapping_key.event)
60 #define IS_TAPPING_PRESSED() (IS_TAPPING() && tapping_key.event.pressed)
61 #define IS_TAPPING_RELEASED() (IS_TAPPING() && !tapping_key.event.pressed)
62 #define IS_TAPPING_KEY(k) (IS_TAPPING() && KEYEQ(tapping_key.event.key, (k)))
63 #define WITHIN_TAPPING_TERM(e) (TIMER_DIFF_16(e.time, tapping_key.event.time) < TAPPING_TERM)
64
65
66 /*
67 * Waiting buffer
68 *
69 * stores key events waiting for settling current tap.
70 */
71 #define WAITING_BUFFER_SIZE 8
72 static keyrecord_t waiting_buffer[WAITING_BUFFER_SIZE] = {};
73
74 /* point to empty cell to enq */
75 static uint8_t waiting_buffer_head = 0;
76
77 /* point to the oldest data cell to deq */
78 static uint8_t waiting_buffer_tail = 0;
79
80 static bool waiting_buffer_enq(keyrecord_t record)
81 {
82 if (IS_NOEVENT(record.event)) {
83 return true;
84 }
85
86 if ((waiting_buffer_head + 1) % WAITING_BUFFER_SIZE == waiting_buffer_tail) {
87 debug("waiting_buffer_enq: Over flow.\n");
88 return false;
89 }
90
91 waiting_buffer[waiting_buffer_head] = record;
92 waiting_buffer_head = (waiting_buffer_head + 1) % WAITING_BUFFER_SIZE;
93
94 debug("waiting_buffer_enq: "); debug_waiting_buffer();
95 return true;
96 }
97
98 static void waiting_buffer_clear(void)
99 {
100 waiting_buffer_head = 0;
101 waiting_buffer_tail = 0;
102 }
103
104 #if TAPPING_TERM >= 500
105 static bool waiting_buffer_typed(keyevent_t event)
106 {
107 for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
108 if (KEYEQ(event.key, waiting_buffer[i].event.key) && event.pressed != waiting_buffer[i].event.pressed) {
109 return true;
110 }
111 }
112 return false;
113 }
114 #endif
115
116 bool waiting_buffer_has_anykey_pressed(void)
117 {
118 for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
119 if (waiting_buffer[i].event.pressed) return true;
120 }
121 return false;
122 }
123
124
125 /* Oneshot modifier
126 *
127 * Problem: Want to capitalize like 'The' but the result tends to be 'THe'.
128 * Solution: Oneshot modifier have its effect on only one key coming next.
129 * Tap Shift, then type 't', 'h' and 'e'. Not need to hold Shift key.
130 *
131 * Hold: works as normal modifier.
132 * Tap: one shot modifier.
133 * 2 Tap: cancel one shot modifier.
134 * 5-Tap: toggles enable/disable oneshot feature.
135 */
136 static struct {
137 uint8_t mods;
138 uint8_t time;
139 bool ready;
140 bool disabled;
141 } oneshot_state;
142
143 static void oneshot_start(uint8_t mods, uint16_t time)
144 {
145 oneshot_state.mods = mods;
146 oneshot_state.time = time;
147 oneshot_state.ready = true;
148 }
149
150 static void oneshot_cancel(void)
151 {
152 oneshot_state.mods = 0;
153 oneshot_state.time = 0;
154 oneshot_state.ready = false;
155 }
156
157 static void oneshot_toggle(void)
158 {
159 oneshot_state.disabled = !oneshot_state.disabled;
160 }
161
162
163
164 void action_exec(keyevent_t event)
165 {
166 if (!IS_NOEVENT(event)) {
167 debug("\n---- action_exec: start -----\n");
168 debug("EVENT: "); debug_event(event); debug("\n");
169 }
170
171 keyrecord_t record = { .event = event };
172
173 // pre-process on tapping
174 if (process_tapping(&record)) {
175 if (!IS_NOEVENT(record.event)) {
176 debug("processed: "); debug_record(record); debug("\n");
177 }
178 } else {
179 // enqueue
180 if (!waiting_buffer_enq(record)) {
181 // clear all in case of overflow.
182 debug("OVERFLOW: CLEAR ALL STATES\n");
183 clear_keyboard();
184 waiting_buffer_clear();
185 tapping_key = (keyrecord_t){};
186 }
187 }
188
189 // process waiting_buffer
190 if (!IS_NOEVENT(event) && waiting_buffer_head != waiting_buffer_tail) {
191 debug("---- action_exec: process waiting_buffer -----\n");
192 }
193
194 for (; waiting_buffer_tail != waiting_buffer_head; waiting_buffer_tail = (waiting_buffer_tail + 1) % WAITING_BUFFER_SIZE) {
195 if (process_tapping(&waiting_buffer[waiting_buffer_tail])) {
196 debug("processed: waiting_buffer["); debug_dec(waiting_buffer_tail); debug("] = ");
197 debug_record(waiting_buffer[waiting_buffer_tail]); debug("\n\n");
198 } else {
199 break;
200 }
201 }
202 if (!IS_NOEVENT(event)) {
203 debug("\n");
204 }
205 }
206
207 static void process_action(keyrecord_t *record)
208 {
209 keyevent_t event = record->event;
210 uint8_t tap_count = record->tap.count;
211
212 if (IS_NOEVENT(event)) { return; }
213
214 action_t action = layer_switch_get_action(event.key);
215 debug("ACTION: "); debug_action(action);
216 debug(" overlays: "); overlay_debug();
217 debug(" keymaps: "); keymap_debug();
218 debug(" default_layer: "); debug_dec(default_layer); debug("\n");
219
220 switch (action.kind.id) {
221 /* Key and Mods */
222 case ACT_LMODS:
223 case ACT_RMODS:
224 {
225 uint8_t mods = (action.kind.id == ACT_LMODS) ? action.key.mods :
226 action.key.mods<<4;
227 if (event.pressed) {
228 uint8_t tmp_mods = host_get_mods();
229 if (mods) {
230 host_add_mods(mods);
231 host_send_keyboard_report();
232 }
233 register_code(action.key.code);
234 if (mods && action.key.code) {
235 host_set_mods(tmp_mods);
236 host_send_keyboard_report();
237 }
238 } else {
239 if (mods && !action.key.code) {
240 host_del_mods(mods);
241 host_send_keyboard_report();
242 }
243 unregister_code(action.key.code);
244 }
245 }
246 break;
247 case ACT_LMODS_TAP:
248 case ACT_RMODS_TAP:
249 {
250 uint8_t mods = (action.kind.id == ACT_LMODS_TAP) ? action.key.mods :
251 action.key.mods<<4;
252 switch (action.layer.code) {
253 case 0x00:
254 // Oneshot modifier
255 if (event.pressed) {
256 if (tap_count == 0) {
257 debug("MODS_TAP: Oneshot: add_mods\n");
258 add_mods(mods);
259 }
260 else if (tap_count == 1) {
261 debug("MODS_TAP: Oneshot: start\n");
262 oneshot_start(mods, event.time);
263 }
264 else if (tap_count == TAPPING_TOGGLE) {
265 debug("MODS_TAP: Oneshot: toggle\n");
266 oneshot_toggle();
267 }
268 else {
269 debug("MODS_TAP: Oneshot: cancel&add_mods\n");
270 // double tap cancels oneshot and works as normal modifier.
271 oneshot_cancel();
272 add_mods(mods);
273 }
274 } else {
275 if (tap_count == 0) {
276 debug("MODS_TAP: Oneshot: cancel/del_mods\n");
277 // cancel oneshot on hold
278 oneshot_cancel();
279 del_mods(mods);
280 }
281 else if (tap_count == 1) {
282 debug("MODS_TAP: Oneshot: del_mods\n");
283 // retain Oneshot
284 del_mods(mods);
285 }
286 else {
287 debug("MODS_TAP: Oneshot: del_mods\n");
288 // cancel Mods
289 del_mods(mods);
290 }
291 }
292 break;
293 default:
294 if (event.pressed) {
295 if (tap_count > 0) {
296 if (waiting_buffer_has_anykey_pressed()) {
297 debug("MODS_TAP: Tap: Cancel: add_mods\n");
298 // ad hoc: set 0 to cancel tap
299 record->tap.count = 0;
300 add_mods(mods);
301 } else {
302 debug("MODS_TAP: Tap: register_code\n");
303 register_code(action.key.code);
304 }
305 } else {
306 debug("MODS_TAP: No tap: add_mods\n");
307 add_mods(mods);
308 }
309 } else {
310 if (tap_count > 0) {
311 debug("MODS_TAP: Tap: unregister_code\n");
312 unregister_code(action.key.code);
313 } else {
314 debug("MODS_TAP: No tap: add_mods\n");
315 del_mods(mods);
316 }
317 }
318 break;
319 }
320 }
321 break;
322
323 /* other HID usage */
324 case ACT_USAGE:
325 #ifdef EXTRAKEY_ENABLE
326 switch (action.usage.page) {
327 case PAGE_SYSTEM:
328 if (event.pressed) {
329 host_system_send(action.usage.code);
330 } else {
331 host_system_send(0);
332 }
333 break;
334 case PAGE_CONSUMER:
335 if (event.pressed) {
336 host_consumer_send(action.usage.code);
337 } else {
338 host_consumer_send(0);
339 }
340 break;
341 }
342 #endif
343 break;
344
345 /* Mouse key */
346 case ACT_MOUSEKEY:
347 #ifdef MOUSEKEY_ENABLE
348 if (event.pressed) {
349 mousekey_on(action.key.code);
350 mousekey_send();
351 } else {
352 mousekey_off(action.key.code);
353 mousekey_send();
354 }
355 #endif
356 break;
357
358 case ACT_KEYMAP:
359 switch (action.layer.code) {
360 /* Keymap clear */
361 case OP_RESET:
362 switch (action.layer.val & 0x03) {
363 case 0:
364 // NOTE: reserved
365 overlay_clear();
366 keymap_clear();
367 break;
368 case ON_PRESS:
369 if (event.pressed) {
370 overlay_clear();
371 keymap_clear();
372 }
373 break;
374 case ON_RELEASE:
375 if (!event.pressed) {
376 overlay_clear();
377 keymap_clear();
378 }
379 break;
380 case ON_BOTH:
381 overlay_clear();
382 keymap_clear();
383 break;
384 /* NOTE: 4-7 rserved */
385 }
386 break;
387 /* Keymap Reset default layer */
388 case (OP_RESET | ON_PRESS):
389 if (event.pressed) {
390 default_layer_set(action.layer.val);
391 }
392 break;
393 case (OP_RESET | ON_RELEASE):
394 if (!event.pressed) {
395 default_layer_set(action.layer.val);
396 }
397 break;
398 case (OP_RESET | ON_BOTH):
399 default_layer_set(action.layer.val);
400 break;
401
402 /* Keymap Bit invert */
403 case OP_INV:
404 /* with tap toggle */
405 if (event.pressed) {
406 if (tap_count < TAPPING_TOGGLE) {
407 debug("KEYMAP_INV: tap toggle(press).\n");
408 keymap_invert(action.layer.val);
409 }
410 } else {
411 if (tap_count <= TAPPING_TOGGLE) {
412 debug("KEYMAP_INV: tap toggle(release).\n");
413 keymap_invert(action.layer.val);
414 }
415 }
416 break;
417 case (OP_INV | ON_PRESS):
418 if (event.pressed) {
419 keymap_invert(action.layer.val);
420 }
421 break;
422 case (OP_INV | ON_RELEASE):
423 if (!event.pressed) {
424 keymap_invert(action.layer.val);
425 }
426 break;
427 case (OP_INV | ON_BOTH):
428 keymap_invert(action.layer.val);
429 break;
430
431 /* Keymap Bit on */
432 case OP_ON:
433 if (event.pressed) {
434 keymap_on(action.layer.val);
435 } else {
436 keymap_off(action.layer.val);
437 }
438 break;
439 case (OP_ON | ON_PRESS):
440 if (event.pressed) {
441 keymap_on(action.layer.val);
442 }
443 break;
444 case (OP_ON | ON_RELEASE):
445 if (!event.pressed) {
446 keymap_on(action.layer.val);
447 }
448 break;
449 case (OP_ON | ON_BOTH):
450 keymap_on(action.layer.val);
451 break;
452
453 /* Keymap Bit off */
454 case OP_OFF:
455 if (event.pressed) {
456 keymap_off(action.layer.val);
457 } else {
458 keymap_on(action.layer.val);
459 }
460 break;
461 case (OP_OFF | ON_PRESS):
462 if (event.pressed) {
463 keymap_off(action.layer.val);
464 }
465 break;
466 case (OP_OFF | ON_RELEASE):
467 if (!event.pressed) {
468 keymap_off(action.layer.val);
469 }
470 break;
471 case (OP_OFF | ON_BOTH):
472 keymap_off(action.layer.val);
473 break;
474
475 /* Keymap Bit set */
476 case OP_SET:
477 if (event.pressed) {
478 keymap_set(action.layer.val);
479 } else {
480 keymap_clear();
481 }
482 break;
483 case (OP_SET | ON_PRESS):
484 if (event.pressed) {
485 keymap_set(action.layer.val);
486 }
487 break;
488 case (OP_SET | ON_RELEASE):
489 if (!event.pressed) {
490 keymap_set(action.layer.val);
491 }
492 break;
493 case (OP_SET | ON_BOTH):
494 keymap_set(action.layer.val);
495 break;
496
497 /* Keymap Bit invert with tap key */
498 default:
499 if (event.pressed) {
500 if (tap_count > 0) {
501 debug("KEYMAP_TAP_KEY: Tap: register_code\n");
502 register_code(action.layer.code);
503 } else {
504 debug("KEYMAP_TAP_KEY: No tap: On on press\n");
505 keymap_on(action.layer.val);
506 }
507 } else {
508 if (tap_count > 0) {
509 debug("KEYMAP_TAP_KEY: Tap: unregister_code\n");
510 unregister_code(action.layer.code);
511 } else {
512 debug("KEYMAP_TAP_KEY: No tap: Off on release\n");
513 keymap_off(action.layer.val);
514 }
515 }
516 break;
517 }
518 break;
519
520 case ACT_OVERLAY:
521 switch (action.layer.code) {
522 // Overlay Invert bit4
523 case OP_INV4 | 0:
524 if (action.layer.val == 0) {
525 // NOTE: reserved for future use
526 overlay_clear();
527 } else {
528 overlay_set(overlay_stat ^ action.layer.val);
529 }
530 break;
531 case OP_INV4 | 1:
532 if (action.layer.val == 0) {
533 // on pressed
534 if (event.pressed) overlay_clear();
535 } else {
536 overlay_set(overlay_stat ^ action.layer.val<<4);
537 }
538 break;
539 case OP_INV4 | 2:
540 if (action.layer.val == 0) {
541 // on released
542 if (!event.pressed) overlay_clear();
543 } else {
544 overlay_set(overlay_stat ^ action.layer.val<<8);
545 }
546 break;
547 case OP_INV4 | 3:
548 if (action.layer.val == 0) {
549 // on both
550 overlay_clear();
551 } else {
552 overlay_set(overlay_stat ^ action.layer.val<<12);
553 }
554 break;
555
556 /* Overlay Bit invert */
557 case OP_INV:
558 /* with tap toggle */
559 if (event.pressed) {
560 if (tap_count < TAPPING_TOGGLE) {
561 debug("OVERLAY_INV: tap toggle(press).\n");
562 overlay_invert(action.layer.val);
563 }
564 } else {
565 if (tap_count <= TAPPING_TOGGLE) {
566 debug("OVERLAY_INV: tap toggle(release).\n");
567 overlay_invert(action.layer.val);
568 }
569 }
570 break;
571 case (OP_INV | ON_PRESS):
572 if (event.pressed) {
573 overlay_invert(action.layer.val);
574 }
575 break;
576 case (OP_INV | ON_RELEASE):
577 if (!event.pressed) {
578 overlay_invert(action.layer.val);
579 }
580 break;
581 case (OP_INV | ON_BOTH):
582 overlay_invert(action.layer.val);
583 break;
584
585 /* Overlay Bit on */
586 case OP_ON:
587 if (event.pressed) {
588 overlay_on(action.layer.val);
589 } else {
590 overlay_off(action.layer.val);
591 }
592 break;
593 case (OP_ON | ON_PRESS):
594 if (event.pressed) {
595 overlay_on(action.layer.val);
596 }
597 break;
598 case (OP_ON | ON_RELEASE):
599 if (!event.pressed) {
600 overlay_on(action.layer.val);
601 }
602 break;
603 case (OP_ON | ON_BOTH):
604 overlay_on(action.layer.val);
605 break;
606
607 /* Overlay Bit off */
608 case OP_OFF:
609 if (event.pressed) {
610 overlay_off(action.layer.val);
611 } else {
612 overlay_on(action.layer.val);
613 }
614 break;
615 case (OP_OFF | ON_PRESS):
616 if (event.pressed) {
617 overlay_off(action.layer.val);
618 }
619 break;
620 case (OP_OFF | ON_RELEASE):
621 if (!event.pressed) {
622 overlay_off(action.layer.val);
623 }
624 break;
625 case (OP_OFF | ON_BOTH):
626 overlay_off(action.layer.val);
627 break;
628
629 /* Overlay Bit set */
630 case OP_SET:
631 if (event.pressed) {
632 overlay_move(action.layer.val);
633 } else {
634 overlay_clear();
635 }
636 break;
637 case (OP_SET | ON_PRESS):
638 if (event.pressed) {
639 overlay_move(action.layer.val);
640 }
641 break;
642 case (OP_SET | ON_RELEASE):
643 if (!event.pressed) {
644 overlay_move(action.layer.val);
645 }
646 break;
647 case (OP_SET | ON_BOTH):
648 overlay_move(action.layer.val);
649 break;
650
651 /* Overlay Bit invert with tap key */
652 default:
653 if (event.pressed) {
654 if (tap_count > 0) {
655 debug("OVERLAY_TAP_KEY: Tap: register_code\n");
656 register_code(action.layer.code);
657 } else {
658 debug("OVERLAY_TAP_KEY: No tap: On on press\n");
659 overlay_on(action.layer.val);
660 }
661 } else {
662 if (tap_count > 0) {
663 debug("OVERLAY_TAP_KEY: Tap: unregister_code\n");
664 unregister_code(action.layer.code);
665 } else {
666 debug("OVERLAY_TAP_KEY: No tap: Off on release\n");
667 overlay_off(action.layer.val);
668 }
669 }
670 break;
671 }
672 break;
673
674 /* Extentions */
675 case ACT_MACRO:
676 action_macro_play(action_get_macro(record, action.func.id, action.func.opt));
677 break;
678 case ACT_COMMAND:
679 break;
680 case ACT_FUNCTION:
681 action_function(record, action.func.id, action.func.opt);
682 break;
683 default:
684 break;
685 }
686 }
687
688 /* Tapping
689 *
690 * Rule: Tap key is typed(pressed and released) within TAPPING_TERM.
691 * (without interfering by typing other key)
692 */
693 /* return true when key event is processed or consumed. */
694 static bool process_tapping(keyrecord_t *keyp)
695 {
696 keyevent_t event = keyp->event;
697
698 // if tapping
699 if (IS_TAPPING_PRESSED()) {
700 if (WITHIN_TAPPING_TERM(event)) {
701 if (tapping_key.tap.count == 0) {
702 if (IS_TAPPING_KEY(event.key) && !event.pressed) {
703 // first tap!
704 debug("Tapping: First tap(0->1).\n");
705 tapping_key.tap.count = 1;
706 tapping_key.tap.interrupted = (waiting_buffer_has_anykey_pressed() ? true : false);
707 debug_tapping_key();
708 process_action(&tapping_key);
709
710 // enqueue
711 keyp->tap = tapping_key.tap;
712 return false;
713 }
714 #if TAPPING_TERM >= 500
715 /* This can prevent from typing some tap keys in a row at a time. */
716 else if (!event.pressed && waiting_buffer_typed(event)) {
717 // other key typed. not tap.
718 debug("Tapping: End. No tap. Interfered by typing key\n");
719 process_action(&tapping_key);
720 tapping_key = (keyrecord_t){};
721 debug_tapping_key();
722
723 // enqueue
724 return false;
725 }
726 #endif
727 else {
728 // other key events shall be enq'd till tapping state settles.
729 return false;
730 }
731 }
732 // tap_count > 0
733 else {
734 if (IS_TAPPING_KEY(event.key) && !event.pressed) {
735 debug("Tapping: Tap release("); debug_dec(tapping_key.tap.count); debug(")\n");
736 keyp->tap = tapping_key.tap;
737 process_action(keyp);
738 tapping_key = *keyp;
739 debug_tapping_key();
740 return true;
741 }
742 else if (is_tap_key(keyp->event.key) && event.pressed) {
743 if (tapping_key.tap.count > 1) {
744 debug("Tapping: Start new tap with releasing last tap(>1).\n");
745 // unregister key
746 process_action(&(keyrecord_t){
747 .tap = tapping_key.tap,
748 .event.key = tapping_key.event.key,
749 .event.time = event.time,
750 .event.pressed = false
751 });
752 } else {
753 debug("Tapping: Start while last tap(1).\n");
754 }
755 tapping_key = *keyp;
756 waiting_buffer_scan_tap();
757 debug_tapping_key();
758 return true;
759 }
760 else {
761 if (!IS_NOEVENT(keyp->event)) {
762 debug("Tapping: key event while last tap(>0).\n");
763 }
764 process_action(keyp);
765 return true;
766 }
767 }
768 }
769 // after TAPPING_TERM
770 else {
771 if (tapping_key.tap.count == 0) {
772 debug("Tapping: End. Timeout. Not tap(0): ");
773 debug_event(event); debug("\n");
774 process_action(&tapping_key);
775 tapping_key = (keyrecord_t){};
776 debug_tapping_key();
777 return false;
778 } else {
779 if (IS_TAPPING_KEY(event.key) && !event.pressed) {
780 debug("Tapping: End. last timeout tap release(>0).");
781 keyp->tap = tapping_key.tap;
782 process_action(keyp);
783 tapping_key = (keyrecord_t){};
784 return true;
785 }
786 else if (is_tap_key(keyp->event.key) && event.pressed) {
787 if (tapping_key.tap.count > 1) {
788 debug("Tapping: Start new tap with releasing last timeout tap(>1).\n");
789 // unregister key
790 process_action(&(keyrecord_t){
791 .tap = tapping_key.tap,
792 .event.key = tapping_key.event.key,
793 .event.time = event.time,
794 .event.pressed = false
795 });
796 } else {
797 debug("Tapping: Start while last timeout tap(1).\n");
798 }
799 tapping_key = *keyp;
800 waiting_buffer_scan_tap();
801 debug_tapping_key();
802 return true;
803 }
804 else {
805 if (!IS_NOEVENT(keyp->event)) {
806 debug("Tapping: key event while last timeout tap(>0).\n");
807 }
808 process_action(keyp);
809 return true;
810 }
811 }
812 }
813 } else if (IS_TAPPING_RELEASED()) {
814 if (WITHIN_TAPPING_TERM(event)) {
815 if (tapping_key.tap.count > 0 && IS_TAPPING_KEY(event.key) && event.pressed) {
816 // sequential tap.
817 keyp->tap = tapping_key.tap;
818 keyp->tap.count += 1;
819 debug("Tapping: Tap press("); debug_dec(keyp->tap.count); debug(")\n");
820 process_action(keyp);
821 tapping_key = *keyp;
822 debug_tapping_key();
823 return true;
824 } else if (event.pressed && is_tap_key(event.key)) {
825 // Sequential tap can be interfered with other tap key.
826 debug("Tapping: Start with interfering other tap.\n");
827 tapping_key = *keyp;
828 waiting_buffer_scan_tap();
829 debug_tapping_key();
830 return true;
831 } else {
832 if (!IS_NOEVENT(keyp->event)) debug("Tapping: other key just after tap.\n");
833 process_action(keyp);
834 return true;
835 }
836 } else {
837 // timeout. no sequential tap.
838 debug("Tapping: End(Timeout after releasing last tap): ");
839 debug_event(event); debug("\n");
840 tapping_key = (keyrecord_t){};
841 debug_tapping_key();
842 return false;
843 }
844 }
845 // not tapping satate
846 else {
847 if (event.pressed && is_tap_key(event.key)) {
848 debug("Tapping: Start(Press tap key).\n");
849 tapping_key = *keyp;
850 waiting_buffer_scan_tap();
851 debug_tapping_key();
852 return true;
853 } else {
854 process_action(keyp);
855 return true;
856 }
857 }
858 }
859
860 /* scan buffer for tapping */
861 static void waiting_buffer_scan_tap(void)
862 {
863 // tapping already is settled
864 if (tapping_key.tap.count > 0) return;
865 // invalid state: tapping_key released && tap.count == 0
866 if (!tapping_key.event.pressed) return;
867
868 for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
869 if (IS_TAPPING_KEY(waiting_buffer[i].event.key) &&
870 !waiting_buffer[i].event.pressed &&
871 WITHIN_TAPPING_TERM(waiting_buffer[i].event)) {
872 tapping_key.tap.count = 1;
873 waiting_buffer[i].tap.count = 1;
874 process_action(&tapping_key);
875
876 debug("waiting_buffer_scan_tap: found at ["); debug_dec(i); debug("]\n");
877 debug_waiting_buffer();
878 return;
879 }
880 }
881 }
882
883
884
885 /*
886 * Utilities for actions.
887 */
888 void register_code(uint8_t code)
889 {
890 if (code == KC_NO) {
891 return;
892 }
893 #ifdef CAPSLOCK_LOCKING_ENABLE
894 else if (KC_LOCKING_CAPS == code) {
895 #ifdef CAPSLOCK_LOCKING_RESYNC_ENABLE
896 // Resync: ignore if caps lock already is on
897 if (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) return;
898 #endif
899 host_add_key(KC_CAPSLOCK);
900 host_send_keyboard_report();
901 host_del_key(KC_CAPSLOCK);
902 host_send_keyboard_report();
903 }
904 #endif
905 else if IS_KEY(code) {
906 // TODO: should push command_proc out of this block?
907 if (command_proc(code)) return;
908
909 if (oneshot_state.mods && oneshot_state.ready && !oneshot_state.disabled) {
910 uint8_t tmp_mods = host_get_mods();
911 host_add_mods(oneshot_state.mods);
912 host_add_key(code);
913 host_send_keyboard_report();
914
915 host_set_mods(tmp_mods);
916 oneshot_state.ready = false;
917 } else {
918 host_add_key(code);
919 host_send_keyboard_report();
920 }
921 }
922 else if IS_MOD(code) {
923 host_add_mods(MOD_BIT(code));
924 host_send_keyboard_report();
925 }
926 }
927
928 void unregister_code(uint8_t code)
929 {
930 if (code == KC_NO) {
931 return;
932 }
933 #ifdef CAPSLOCK_LOCKING_ENABLE
934 else if (KC_LOCKING_CAPS == code) {
935 #ifdef CAPSLOCK_LOCKING_RESYNC_ENABLE
936 // Resync: ignore if caps lock already is off
937 if (!(host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK))) return;
938 #endif
939 host_add_key(KC_CAPSLOCK);
940 host_send_keyboard_report();
941 host_del_key(KC_CAPSLOCK);
942 host_send_keyboard_report();
943 }
944 #endif
945 else if IS_KEY(code) {
946 host_del_key(code);
947 host_send_keyboard_report();
948 }
949 else if IS_MOD(code) {
950 host_del_mods(MOD_BIT(code));
951 host_send_keyboard_report();
952 }
953 }
954
955 void add_mods(uint8_t mods)
956 {
957 if (mods) {
958 host_add_mods(mods);
959 host_send_keyboard_report();
960 }
961 }
962
963 void del_mods(uint8_t mods)
964 {
965 if (mods) {
966 host_del_mods(mods);
967 host_send_keyboard_report();
968 }
969 }
970
971 void set_mods(uint8_t mods)
972 {
973 host_set_mods(mods);
974 host_send_keyboard_report();
975 }
976
977 void clear_keyboard(void)
978 {
979 host_clear_mods();
980 clear_keyboard_but_mods();
981 }
982
983 void clear_keyboard_but_mods(void)
984 {
985 host_clear_keys();
986 host_send_keyboard_report();
987 #ifdef MOUSEKEY_ENABLE
988 mousekey_clear();
989 mousekey_send();
990 #endif
991 #ifdef EXTRAKEY_ENABLE
992 host_system_send(0);
993 host_consumer_send(0);
994 #endif
995 }
996
997 bool sending_anykey(void)
998 {
999 return (host_has_anykey() || host_mouse_in_use() ||
1000 host_last_sysytem_report() || host_last_consumer_report());
1001 }
1002
1003 bool is_tap_key(key_t key)
1004 {
1005 action_t action = layer_switch_get_action(key);
1006
1007 switch (action.kind.id) {
1008 case ACT_LMODS_TAP:
1009 case ACT_RMODS_TAP:
1010 return true;
1011 case ACT_KEYMAP:
1012 case ACT_OVERLAY:
1013 switch (action.layer.code) {
1014 case 0x04 ... 0xEF: /* tap key */
1015 case OP_INV:
1016 return true;
1017 default:
1018 return false;
1019 }
1020 case ACT_MACRO:
1021 case ACT_FUNCTION:
1022 if (action.func.opt & FUNC_TAP) { return true; }
1023 return false;
1024 }
1025 return false;
1026 }
1027
1028
1029 /*
1030 * debug print
1031 */
1032 static void debug_event(keyevent_t event)
1033 {
1034 debug_hex16((event.key.row<<8) | event.key.col);
1035 if (event.pressed) debug("d("); else debug("u(");
1036 debug_dec(event.time); debug(")");
1037 }
1038 static void debug_record(keyrecord_t record)
1039 {
1040 debug_event(record.event); debug(":"); debug_dec(record.tap.count);
1041 if (record.tap.interrupted) debug("-");
1042 }
1043 static void debug_action(action_t action)
1044 {
1045 switch (action.kind.id) {
1046 case ACT_LMODS: debug("ACT_LMODS"); break;
1047 case ACT_RMODS: debug("ACT_RMODS"); break;
1048 case ACT_LMODS_TAP: debug("ACT_LMODS_TAP"); break;
1049 case ACT_RMODS_TAP: debug("ACT_RMODS_TAP"); break;
1050 case ACT_USAGE: debug("ACT_USAGE"); break;
1051 case ACT_MOUSEKEY: debug("ACT_MOUSEKEY"); break;
1052 case ACT_KEYMAP: debug("ACT_KEYMAP"); break;
1053 case ACT_OVERLAY: debug("ACT_OVERLAY"); break;
1054 case ACT_MACRO: debug("ACT_MACRO"); break;
1055 case ACT_COMMAND: debug("ACT_COMMAND"); break;
1056 case ACT_FUNCTION: debug("ACT_FUNCTION"); break;
1057 default: debug("UNKNOWN"); break;
1058 }
1059 debug("[");
1060 debug_hex4(action.kind.param>>8);
1061 debug(":");
1062 debug_hex8(action.kind.param & 0xff);
1063 debug("]");
1064 }
1065 static void debug_tapping_key(void)
1066 {
1067 debug("TAPPING_KEY="); debug_record(tapping_key); debug("\n");
1068 }
1069 static void debug_waiting_buffer(void)
1070 {
1071 debug("{ ");
1072 for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
1073 debug("["); debug_dec(i); debug("]="); debug_record(waiting_buffer[i]); debug(" ");
1074 }
1075 debug("}\n");
1076 }
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