summaryrefslogtreecommitdiff
path: root/common/action.c
blob: 22f0bf0a0db9edac1f417ae2985c3d39fc7a35e9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
#include "host.h"
#include "timer.h"
#include "keymap.h"
#include "keycode.h"
#include "keyboard.h"
#include "mousekey.h"
#include "command.h"
#include "util.h"
#include "debug.h"
#include "action.h"


static void process(keyrecord_t *record);

// TODO
/* layer */
uint8_t default_layer = 0;
uint8_t current_layer = 0;

/* tap term(ms) */
#define TAP_TERM    200

/* This counts up when tap occurs */
uint8_t tap_count = 0;
keyevent_t tapping_event = {};
keyrecord_t tapping_key = {};

/* TAPPING: This indicates that whether tap or not is not decided yet. */
// NOTE:  keyevent_t.time 0 means no event.
#define IS_TAPPING()            (tapping_key.event.time != 0)
#define IS_TAPPING_PRESSED()    (IS_TAPPING() && tapping_key.event.pressed)
#define IS_TAPPING_RELEASED()   (IS_TAPPING() && !tapping_key.event.pressed)
#define IS_TAPPING_KEY(k)       (IS_TAPPING() && KEYEQ(tapping_key.event.key, (k)))
#define WITHIN_TAP_TERM(e)      (TIMER_DIFF_16(e.time, tapping_key.event.time) < TAP_TERM)

/* waiting keys buffer */
#define WAITING_BUFFER_SIZE 8
static keyrecord_t waiting_buffer[WAITING_BUFFER_SIZE] = {};
/* point to empty cell to enq */
static uint8_t waiting_buffer_head = 0;
/* point to the oldest data cell to deq */
static uint8_t waiting_buffer_tail = 0;

static bool waiting_buffer_enq(keyrecord_t record)
{
    if (IS_NOEVENT(record.event)) {
        return true;
    }

    if ((waiting_buffer_head + 1) % WAITING_BUFFER_SIZE == waiting_buffer_tail) {
        debug("waiting_buffer_enq: Over flow.\n");
        return false;
    }

    debug("waiting_buffer_enq["); debug_dec(waiting_buffer_head); debug("] = ");
    debug_hex16(record.event.key.raw); debug("\n");

    waiting_buffer[waiting_buffer_head] = record;
    waiting_buffer_head = (waiting_buffer_head + 1) % WAITING_BUFFER_SIZE;
    return true;
}
static keyrecord_t waiting_buffer_deq(void)
{
    if (waiting_buffer_head == waiting_buffer_tail) {
        return (keyrecord_t){};
    }
    uint8_t last_tail = waiting_buffer_tail;
    waiting_buffer_tail = waiting_buffer_tail + 1 % WAITING_BUFFER_SIZE;
    return waiting_buffer[last_tail];
}
static bool waiting_buffer_is_empty(void)
{
    return (waiting_buffer_head == waiting_buffer_tail);
}
static void waiting_buffer_clear(void)
{
    waiting_buffer_head = 0;
    waiting_buffer_tail = 0;
}
static bool waiting_buffer_typed(keyevent_t event)
{
    for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
        if (KEYEQ(event.key, waiting_buffer[i].event.key) && event.pressed !=  waiting_buffer[i].event.pressed) {
            return true;
        }
    }
    return false;
}
static bool waiting_buffer_has_anykey_pressed(void)
{
    for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
        if (waiting_buffer[i].event.pressed) return true;
    }
    return false;
}
static void waiting_buffer_process(void)
{
}

/* Oneshot modifier
 *
 * Problem: Want to capitalize like 'The' but the result tends to be 'THe'.
 * Solution: Oneshot modifier have its effect on only one key coming next.
 *           Tap Shift, then type 't', 'h' and 'e'. Not need to hold Shift key.
 *
 *  Hold:       works as normal modifier.
 *  Tap:        one shot modifier.
 *  2 Tap:      cancel one shot modifier.
 *  5-Tap:      toggles enable/disable oneshot feature.
 */
static struct {
    uint8_t mods;
    uint8_t time;
    bool    ready;
    bool    disabled;
}   oneshot_state;
static void oneshot_start(uint8_t mods, uint16_t time)
{
    oneshot_state.mods = mods;
    oneshot_state.time = time;
    oneshot_state.ready = true;
}
static void oneshot_cancel(void)
{
    oneshot_state.mods = 0;
    oneshot_state.time = 0;
    oneshot_state.ready = false;
}
static void oneshot_toggle(void)
{
    oneshot_state.disabled = !oneshot_state.disabled;
}


/*
 * Rule to judge tap:
 * Tap key is typed(pressed and released) within TAP_TERM
 * without interfaring by typing other key.
 */
/* return true when key event is processed. */
static bool process_tap(keyrecord_t *keyp)
{
    keyevent_t event = keyp->event;

    // if tapping
    if (IS_TAPPING_PRESSED()) {
        if (WITHIN_TAP_TERM(event)) {
            if (tapping_key.tap_count == 0) {
                if (IS_TAPPING_KEY(event.key) && !event.pressed) {
                    // first tap!
                    debug("Tapping: First tap.\n");
                    tapping_key.tap_count = 1;
                    process(&tapping_key);

                    // enqueue
                    keyp->tap_count = tapping_key.tap_count;
                    return false;
                } else if (!event.pressed && waiting_buffer_typed(event)) {
                    // other key typed. not tap.
                    debug("Tapping: End(No tap. Interfered by typing key).\n");
                    process(&tapping_key);
                    tapping_key = (keyrecord_t){};

                    // enqueue
                    return false;
                } else {
                    // other key events shall be stored till tapping state settles.
                    return false;
                }
            } else {
                if (IS_TAPPING_KEY(event.key) && !event.pressed) {
                    keyp->tap_count = tapping_key.tap_count;
                    debug("Tapping: tap release("); debug_dec(keyp->tap_count); debug(")\n");
                    tapping_key = *keyp;
                    return false;
                }
                else if (is_tap_key(keyp->event.key) && event.pressed) {
                    debug("Tapping: Start with forcing to release last tap.\n");
                    process(&(keyrecord_t){
                            .tap_count = tapping_key.tap_count,
                            .event.key = tapping_key.event.key,
                            .event.time = event.time,
                            .event.pressed = false
                    });
                    tapping_key = *keyp;
                    return false;
                }
                else {
                    if (!IS_NOEVENT(keyp->event)) debug("Tapping: key event while tap.\n");
                    process(keyp);
                    return true;
                }
            }
        }
        // not within TAP_TERM
        else {
            if (tapping_key.tap_count == 0) {
                // timeout. not tap.
                debug("Tapping: End. Not tap(time out).\n");
                process(&tapping_key);
                tapping_key = (keyrecord_t){};
                return false;
            }  else {
                if (IS_TAPPING_KEY(event.key) && !event.pressed) {
                    debug("Tapping: End. tap release.");
                    keyp->tap_count = tapping_key.tap_count;
                    process(keyp);
                    tapping_key = (keyrecord_t){};
                    return true;
                } else {
                    // other key after tap time out.
                    process(keyp);
                    return true;
                }
            }
        }
    } else if (IS_TAPPING_RELEASED()) {
        if (WITHIN_TAP_TERM(event)) {
            if (tapping_key.tap_count > 0 && IS_TAPPING_KEY(event.key) && event.pressed) {
                // sequential tap.
                keyp->tap_count = tapping_key.tap_count + 1;
                debug("Tapping: tap press("); debug_dec(keyp->tap_count); debug(")\n");
                process(keyp);
                tapping_key = *keyp;
                return true;
            } else if (event.pressed && is_tap_key(event.key)) {
                // Sequential tap can be interfered with other tap key.
                debug("Tapping: Start with interfering other tap.\n");
                tapping_key = *keyp;
                return true;
            } else {
                if (!IS_NOEVENT(keyp->event)) debug("Tapping: other key just after tap.\n");
                process(keyp);
                return true;
            }
        } else {
            // timeout. no sequential tap.
            debug("Tapping: End(Time out after releasing last tap).\n");
            tapping_key = (keyrecord_t){};
            process(keyp);
            return true;
        }
    } else {
        if (event.pressed && is_tap_key(event.key)) {
            debug("Tapping: Start(Press tap key).\n");
            tapping_key = *keyp;
            return true;
        } else {
            process(keyp);
            return true;
        }
    }
}

void action_exec(keyevent_t event)
{
    if (!IS_NOEVENT(event)) {
        debug("event: "); 
        debug_hex16(event.time); debug(": ");
        debug_hex16(event.key.raw);
        debug("[");
        if (event.pressed) debug("down"); else debug("up");
        debug("]\n");
    }

    keyrecord_t record = { .event = event };

    // pre-process on tapping
    if (process_tap(&record)) {
        if (!IS_NOEVENT(record.event)) debug("processed.\n");
    } else {
        if (!IS_NOEVENT(record.event)) debug("enqueued.\n");
        if (!waiting_buffer_enq(record)) {
            // clear all in case of overflow.
            clear_keyboard();
            waiting_buffer_clear();
            tapping_key = (keyrecord_t){};
        }
    }

    // TODO: need to process every time?
    // process waiting_buffer
    for (; waiting_buffer_tail != waiting_buffer_head; waiting_buffer_tail = (waiting_buffer_tail + 1) % WAITING_BUFFER_SIZE) {
        if (process_tap(&waiting_buffer[waiting_buffer_tail])) {
            debug("processed: waiting_buffer["); debug_dec(waiting_buffer_tail); debug("] = ");
            debug_hex16(waiting_buffer[waiting_buffer_tail].event.key.raw); debug("\n");
        } else {
            break;
        }
    }
}

static void process(keyrecord_t *record)
{
    // TODO: use record
    keyevent_t event = record->event;
    uint8_t tap_count = record->tap_count;

    if (IS_NOEVENT(event)) { return; }

    action_t action = keymap_get_action(current_layer, event.key.pos.row, event.key.pos.col);
    debug("action: "); debug_hex16(action.code);
    if (event.pressed) debug("[down]\n"); else debug("[up]\n");

    switch (action.kind.id) {
        /* Key and Mods */
        case ACT_LMODS:
        case ACT_RMODS:
            {
                uint8_t mods = (action.kind.id == ACT_LMODS) ?  action.key.mods :
                                                                action.key.mods<<4;
                if (event.pressed) {
                    uint8_t tmp_mods = host_get_mods();
                    if (mods) {
                        host_add_mods(mods);
                        host_send_keyboard_report();
                    }
                    register_code(action.key.code);
                    if (mods && action.key.code) {
                        host_set_mods(tmp_mods);
                        host_send_keyboard_report();
                    }
                } else {
                    if (mods && !action.key.code) {
                        host_del_mods(mods);
                        host_send_keyboard_report();
                    }
                    unregister_code(action.key.code);
                }
            }
            break;
        case ACT_LMODS_TAP:
        case ACT_RMODS_TAP:
            {
                uint8_t mods = (action.kind.id == ACT_LMODS_TAP) ?  action.key.mods :
                                                                    action.key.mods<<4;
                switch (action.layer.code) {
                    case 0x00:
                        // Oneshot modifier
                        if (event.pressed) {
                            if (tap_count == 0) {
                                debug("MODS_TAP: Oneshot: add_mods\n");
                                add_mods(mods);
                            }
                            else if (tap_count == 1) {
                                debug("MODS_TAP: Oneshot: start\n");
                                oneshot_start(mods, event.time);
                            }
                            else if (tap_count == 5) {
                                debug("MODS_TAP: Oneshot: toggle\n");
                                oneshot_toggle();
                            }
                            else {
                                debug("MODS_TAP: Oneshot: cancel&add_mods\n");
                                // double tap cancels oneshot and works as normal modifier.
                                oneshot_cancel();
                                add_mods(mods);
                            }
                        } else {
                            if (tap_count == 0) {
                                debug("MODS_TAP: Oneshot: cancel/del_mods\n");
                                // cancel oneshot by holding.
                                oneshot_cancel();
                                del_mods(mods);
                            }
                            else if (tap_count == 1) {
                                debug("MODS_TAP: Oneshot: del_mods\n");
                                // retain Oneshot
                                del_mods(mods);
                            }
                            else {
                                debug("MODS_TAP: Oneshot: del_mods\n");
                                // cancel Mods
                                del_mods(mods);
                            }
                        }
                        break;
                    default:
                        if (event.pressed) {
                            if (tap_count > 0) {
                                if (waiting_buffer_has_anykey_pressed()) {
                                    debug("MODS_TAP: Tap: Cancel: add_mods\n");
                                    // ad hoc: set 0 to cancel tap
                                    record->tap_count = 0;
                                    add_mods(mods);
                                } else {
                                    debug("MODS_TAP: Tap: register_code\n");
                                    register_code(action.key.code);
                                }
                            } else {
                                debug("MODS_TAP: No tap: add_mods\n");
                                add_mods(mods);
                            }
                        } else {
                            if (tap_count > 0) {
                                debug("MODS_TAP: Tap: unregister_code\n");
                                unregister_code(action.key.code);
                            } else {
                                debug("MODS_TAP: No tap: add_mods\n");
                                del_mods(mods);
                            }
                        }
                        break;
                }
            }
            break;

        /* other HID usage */
        case ACT_USAGE:
#ifdef EXTRAKEY_ENABLE
            switch (action.usage.page) {
                case ACTION_USAGE_PAGE_SYSTEM:
                    if (event.pressed) {
                        host_system_send(action.usage.code);
                    } else {
                        host_system_send(0);
                    }
                    break;
                case ACTION_USAGE_PAGE_CONSUMER:
                    if (event.pressed) {
                        host_consumer_send(action.usage.code);
                    } else {
                        host_consumer_send(0);
                    }
                    break;
            }
#endif
            break;

        /* Mouse key */
        case ACT_MOUSEKEY:
#ifdef MOUSEKEY_ENABLE
            if (event.pressed) {
                mousekey_on(action.key.code);
                mousekey_send();
            } else {
                mousekey_off(action.key.code);
                mousekey_send();
            }
#endif
            break;

        /* Layer key */
        case ACT_LAYER_PRESSED:
            // layer action when pressed
            switch (action.layer.code) {
                case 0x00:
                    if (event.pressed) {
                        layer_switch(action.layer.opt);
                    }
                    break;
                case 0xF0:
                    // TODO: tap toggle
                    break;
                case 0xFF:
                    if (event.pressed) {
                        default_layer = action.layer.opt;
                        layer_switch(default_layer);
                    }
                    break;
                default:
                    // with tap key
                    if (event.pressed) {
                        if (IS_TAPPING_KEY(event.key)) {
                           if (tap_count > 0) {
                                debug("LAYER_PRESSED: Tap: register_code\n");
                                register_code(action.layer.code);
                           } else {
                                debug("LAYER_PRESSED: No tap: layer_switch\n");
                                layer_switch(action.layer.opt);
                           }
                        } else {
                            // TODO: while other key tapping
                                debug("LAYER_PRESSED: No tap: layer_switch\n");
                                layer_switch(action.layer.opt);
                        }
/*
                        if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
                            debug("LAYER_PRESSED: Tap: register_code\n");
                            register_code(action.layer.code);
                        } else {
                            debug("LAYER_PRESSED: No tap: layer_switch\n");
                            layer_switch(action.layer.opt);
                        }
*/
                    } else {
                        if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
                            debug("LAYER_PRESSED: Tap: unregister_code\n");
                            unregister_code(action.layer.code);
                        } else {
                            debug("LAYER_PRESSED: No tap: NO ACTION\n");
                        }
                    }
                    break;
            }
            break;
        case ACT_LAYER_RELEASED:
            switch (action.layer.code) {
                case 0x00:
                    if (!event.pressed) {
                        layer_switch(action.layer.opt);
                    }
                    break;
                case 0xF0:
                    // Ignored. LAYER_RELEASED with tap toggle is invalid action.
                    break;
                case 0xFF:
                    if (!event.pressed) {
                        default_layer = action.layer.opt;
                        layer_switch(default_layer);
                    }
                    break;
                default:
                    // Ignored. LAYER_RELEASED with tap key is invalid action.
                    break;
            }
            break;
        case ACT_LAYER_BIT:
            switch (action.layer.code) {
                case 0x00:
                    if (event.pressed) {
                        layer_switch(current_layer | action.layer.opt);
                    } else {
                        layer_switch(current_layer & ~action.layer.opt);
                    }
                    break;
                case 0xF0:
                    // TODO: tap toggle
                    break;
                case 0xFF:
                    // change default layer
                    if (event.pressed) {
                        default_layer = current_layer | action.layer.opt;
                        layer_switch(default_layer);
                    } else {
                        default_layer = current_layer & ~action.layer.opt;
                        layer_switch(default_layer);
                    }
                    break;
                default:
                    // with tap key
                    if (event.pressed) {
                        if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
                            debug("LAYER_BIT: Tap: register_code\n");
                            register_code(action.layer.code);
                        } else {
                            debug("LAYER_BIT: No tap: layer_switch(bit on)\n");
                            layer_switch(current_layer | action.layer.opt);
                        }
                    } else {
                        if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
                            debug("LAYER_BIT: Tap: unregister_code\n");
                            unregister_code(action.layer.code);
                        } else {
                            debug("LAYER_BIT: No tap: layer_switch(bit off)\n");
                            layer_switch(current_layer & ~action.layer.opt);
                        }
                    }
                    break;
            }
        case ACT_LAYER_EXT:
            switch (action.layer.opt) {
                case 0x00:
                    // set default layer when pressed
                    switch (action.layer.code) {
                        case 0x00:
                            if (event.pressed) {
                                layer_switch(default_layer);
                            }
                            break;
                        case 0xF0:
                            // TODO: tap toggle
                            break;
                        case 0xFF:
                            if (event.pressed) {
                                default_layer = current_layer;
                                layer_switch(default_layer);
                            }
                            break;
                        default:
                            // TODO: tap key
                            break;
                    }
                    break;
                case 0x01:
                    // set default layer when released
                    switch (action.layer.code) {
                        case 0x00:
                            if (!event.pressed) {
                                layer_switch(default_layer);
                            }
                            break;
                        case 0xFF:
                            if (!event.pressed) {
                                default_layer = current_layer;
                                layer_switch(default_layer);
                            }
                            break;
                        case 0xF0:
                        default:
                            // Ignore tap.
                            if (!event.pressed) {
                                layer_switch(default_layer);
                            }
                            break;
                    }
                    break;
            }
            break;

        /* Extentions */
        case ACT_MACRO:
            break;
        case ACT_COMMAND:
            break;
        case ACT_FUNCTION:
            action_call_function(event, action.func.id);
            break;
        default:
            break;
    }
}


/*
 * Utilities for actions.
 */
void register_code(uint8_t code)
{
    if (code == KC_NO) {
        return;
    }
    else if IS_KEY(code) {
        // TODO: should push command_proc out of this block?
        if (command_proc(code)) return;

        if (oneshot_state.mods && oneshot_state.ready && !oneshot_state.disabled) {
            uint8_t tmp_mods = host_get_mods();
            host_add_mods(oneshot_state.mods);
            host_add_key(code);
            host_send_keyboard_report();

            host_set_mods(tmp_mods);
            oneshot_state.ready = false;
        } else {
            host_add_key(code);
            host_send_keyboard_report();
        }
    }
    else if IS_MOD(code) {
        host_add_mods(MOD_BIT(code));
        host_send_keyboard_report();
    }
}

void unregister_code(uint8_t code)
{
    if IS_KEY(code) {
        host_del_key(code);
        host_send_keyboard_report();
    }
    else if IS_MOD(code) {
        host_del_mods(MOD_BIT(code));
        host_send_keyboard_report();
    }
}

void add_mods(uint8_t mods)
{
    if (mods) {
        host_add_mods(mods);
        host_send_keyboard_report();
    }
}

void del_mods(uint8_t mods)
{
    if (mods) {
        host_del_mods(mods);
        host_send_keyboard_report();
    }
}

void set_mods(uint8_t mods)
{
    host_set_mods(mods);
    host_send_keyboard_report();
}

void clear_keyboard(void)
{
    host_clear_mods();
    clear_keyboard_but_mods();
}

void clear_keyboard_but_mods(void)
{
    host_clear_keys();
    host_send_keyboard_report();
#ifdef MOUSEKEY_ENABLE
    mousekey_clear();
    mousekey_send();
#endif
#ifdef EXTRAKEY_ENABLE
    host_system_send(0);
    host_consumer_send(0);
#endif
}

bool sending_anykey(void)
{
    return (host_has_anykey() || host_mouse_in_use() ||
            host_last_sysytem_report() || host_last_consumer_report());
}

void layer_switch(uint8_t new_layer)
{
    if (current_layer != new_layer) {
        debug("Layer Switch: "); debug_hex(current_layer);
        debug(" -> "); debug_hex(new_layer); debug("\n");

        current_layer = new_layer;
        clear_keyboard_but_mods(); // To avoid stuck keys
        // TODO: update mods with full scan of matrix? if modifier changes between layers
    }
}

bool is_tap_key(key_t key)
{
    action_t action = keymap_get_action(current_layer, key.pos.row, key.pos.col);
    switch (action.kind.id) {
        case ACT_LMODS_TAP:
        case ACT_RMODS_TAP:
            return true;
        case ACT_LAYER_PRESSED:
        case ACT_LAYER_BIT:
            switch (action.layer.code) {
                case 0x00:
                case 0xF1 ... 0xFF:
                    return false;
                case 0xF0:
                default:
                    return true;
            }
            return false;
        case ACT_FUNCTION:
            if (action.func.opt & 0x1) {
                return true;
            }
            return false;
    }
    return false;
}