5d771039ad
This is an inelegant hack for #2522 but makes things work. Basically we give `action.c` a chance to handle the hold event early so that we can swap the keyboard for later keys. Later, to allow the hold to happen again quickly we nuke the key record so that tapping is reset. I tried to find a cleaner way, honestly.
380 lines
14 KiB
C
380 lines
14 KiB
C
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include "action.h"
|
|
#include "action_layer.h"
|
|
#include "action_tapping.h"
|
|
#include "keycode.h"
|
|
#include "timer.h"
|
|
|
|
#ifdef DEBUG_ACTION
|
|
#include "debug.h"
|
|
#else
|
|
#include "nodebug.h"
|
|
#endif
|
|
|
|
#ifndef NO_ACTION_TAPPING
|
|
|
|
#define IS_TAPPING() !IS_NOEVENT(tapping_key.event)
|
|
#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_TAPPING_TERM(e) (TIMER_DIFF_16(e.time, tapping_key.event.time) < TAPPING_TERM)
|
|
|
|
|
|
static keyrecord_t tapping_key = {};
|
|
static keyrecord_t waiting_buffer[WAITING_BUFFER_SIZE] = {};
|
|
static uint8_t waiting_buffer_head = 0;
|
|
static uint8_t waiting_buffer_tail = 0;
|
|
|
|
static bool process_tapping(keyrecord_t *record);
|
|
static bool waiting_buffer_enq(keyrecord_t record);
|
|
static void waiting_buffer_clear(void);
|
|
static bool waiting_buffer_typed(keyevent_t event);
|
|
static bool waiting_buffer_has_anykey_pressed(void);
|
|
static void waiting_buffer_scan_tap(void);
|
|
static void debug_tapping_key(void);
|
|
static void debug_waiting_buffer(void);
|
|
|
|
|
|
void action_tapping_process(keyrecord_t record)
|
|
{
|
|
if (process_tapping(&record)) {
|
|
if (!IS_NOEVENT(record.event)) {
|
|
debug("processed: "); debug_record(record); debug("\n");
|
|
}
|
|
} else {
|
|
if (!waiting_buffer_enq(record)) {
|
|
// clear all in case of overflow.
|
|
debug("OVERFLOW: CLEAR ALL STATES\n");
|
|
clear_keyboard();
|
|
waiting_buffer_clear();
|
|
tapping_key = (keyrecord_t){};
|
|
}
|
|
}
|
|
|
|
// process waiting_buffer
|
|
if (!IS_NOEVENT(record.event) && waiting_buffer_head != waiting_buffer_tail) {
|
|
debug("---- action_exec: process waiting_buffer -----\n");
|
|
}
|
|
for (; waiting_buffer_tail != waiting_buffer_head; waiting_buffer_tail = (waiting_buffer_tail + 1) % WAITING_BUFFER_SIZE) {
|
|
if (process_tapping(&waiting_buffer[waiting_buffer_tail])) {
|
|
debug("processed: waiting_buffer["); debug_dec(waiting_buffer_tail); debug("] = ");
|
|
debug_record(waiting_buffer[waiting_buffer_tail]); debug("\n\n");
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
if (!IS_NOEVENT(record.event)) {
|
|
debug("\n");
|
|
}
|
|
}
|
|
|
|
|
|
/* Tapping
|
|
*
|
|
* Rule: Tap key is typed(pressed and released) within TAPPING_TERM.
|
|
* (without interfering by typing other key)
|
|
*/
|
|
/* return true when key event is processed or consumed. */
|
|
bool process_tapping(keyrecord_t *keyp)
|
|
{
|
|
keyevent_t event = keyp->event;
|
|
|
|
// if tapping
|
|
if (IS_TAPPING_PRESSED()) {
|
|
if (WITHIN_TAPPING_TERM(event)) {
|
|
if (tapping_key.tap.count == 0) {
|
|
if (IS_TAPPING_KEY(event.key) && !event.pressed) {
|
|
// first tap!
|
|
debug("Tapping: First tap(0->1).\n");
|
|
tapping_key.tap.count = 1;
|
|
debug_tapping_key();
|
|
process_record(&tapping_key);
|
|
|
|
// copy tapping state
|
|
keyp->tap = tapping_key.tap;
|
|
// enqueue
|
|
return false;
|
|
}
|
|
#if TAPPING_TERM >= 500 || defined PERMISSIVE_HOLD
|
|
/* Process a key typed within TAPPING_TERM
|
|
* This can register the key before settlement of tapping,
|
|
* useful for long TAPPING_TERM but may prevent fast typing.
|
|
*/
|
|
else if (IS_RELEASED(event) && waiting_buffer_typed(event)) {
|
|
debug("Tapping: End. No tap. Interfered by typing key\n");
|
|
process_record(&tapping_key);
|
|
tapping_key = (keyrecord_t){};
|
|
debug_tapping_key();
|
|
// enqueue
|
|
return false;
|
|
}
|
|
#endif
|
|
/* Process release event of a key pressed before tapping starts
|
|
* Without this unexpected repeating will occur with having fast repeating setting
|
|
* https://github.com/tmk/tmk_keyboard/issues/60
|
|
*/
|
|
else if (IS_RELEASED(event) && !waiting_buffer_typed(event)) {
|
|
// Modifier should be retained till end of this tapping.
|
|
action_t action = layer_switch_get_action(event.key);
|
|
switch (action.kind.id) {
|
|
case ACT_LMODS:
|
|
case ACT_RMODS:
|
|
if (action.key.mods && !action.key.code) return false;
|
|
if (IS_MOD(action.key.code)) return false;
|
|
break;
|
|
case ACT_LMODS_TAP:
|
|
case ACT_RMODS_TAP:
|
|
if (action.key.mods && keyp->tap.count == 0) return false;
|
|
if (IS_MOD(action.key.code)) return false;
|
|
break;
|
|
}
|
|
// Release of key should be process immediately.
|
|
debug("Tapping: release event of a key pressed before tapping\n");
|
|
process_record(keyp);
|
|
return true;
|
|
}
|
|
else {
|
|
// set interrupted flag when other key preesed during tapping
|
|
if (event.pressed) {
|
|
tapping_key.tap.interrupted = true;
|
|
}
|
|
// enqueue
|
|
return false;
|
|
}
|
|
}
|
|
// tap_count > 0
|
|
else {
|
|
if (IS_TAPPING_KEY(event.key) && !event.pressed) {
|
|
debug("Tapping: Tap release("); debug_dec(tapping_key.tap.count); debug(")\n");
|
|
keyp->tap = tapping_key.tap;
|
|
process_record(keyp);
|
|
tapping_key = *keyp;
|
|
debug_tapping_key();
|
|
return true;
|
|
}
|
|
else if (is_tap_key(event.key) && event.pressed) {
|
|
if (tapping_key.tap.count > 1) {
|
|
debug("Tapping: Start new tap with releasing last tap(>1).\n");
|
|
// unregister key
|
|
process_record(&(keyrecord_t){
|
|
.tap = tapping_key.tap,
|
|
.event.key = tapping_key.event.key,
|
|
.event.time = event.time,
|
|
.event.pressed = false
|
|
});
|
|
} else {
|
|
debug("Tapping: Start while last tap(1).\n");
|
|
}
|
|
tapping_key = *keyp;
|
|
waiting_buffer_scan_tap();
|
|
debug_tapping_key();
|
|
return true;
|
|
}
|
|
else {
|
|
if (!IS_NOEVENT(event)) {
|
|
debug("Tapping: key event while last tap(>0).\n");
|
|
}
|
|
process_record(keyp);
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
// after TAPPING_TERM
|
|
else {
|
|
if (tapping_key.tap.count == 0) {
|
|
debug("Tapping: End. Timeout. Not tap(0): ");
|
|
debug_event(event); debug("\n");
|
|
process_record(&tapping_key);
|
|
tapping_key = (keyrecord_t){};
|
|
debug_tapping_key();
|
|
return false;
|
|
} else {
|
|
if (IS_TAPPING_KEY(event.key) && !event.pressed) {
|
|
debug("Tapping: End. last timeout tap release(>0).");
|
|
keyp->tap = tapping_key.tap;
|
|
process_record(keyp);
|
|
tapping_key = (keyrecord_t){};
|
|
return true;
|
|
}
|
|
else if (is_tap_key(event.key) && event.pressed) {
|
|
if (tapping_key.tap.count > 1) {
|
|
debug("Tapping: Start new tap with releasing last timeout tap(>1).\n");
|
|
// unregister key
|
|
process_record(&(keyrecord_t){
|
|
.tap = tapping_key.tap,
|
|
.event.key = tapping_key.event.key,
|
|
.event.time = event.time,
|
|
.event.pressed = false
|
|
});
|
|
} else {
|
|
debug("Tapping: Start while last timeout tap(1).\n");
|
|
}
|
|
tapping_key = *keyp;
|
|
waiting_buffer_scan_tap();
|
|
debug_tapping_key();
|
|
return true;
|
|
}
|
|
else {
|
|
if (!IS_NOEVENT(event)) {
|
|
debug("Tapping: key event while last timeout tap(>0).\n");
|
|
}
|
|
process_record(keyp);
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
} else if (IS_TAPPING_RELEASED()) {
|
|
if (WITHIN_TAPPING_TERM(event)) {
|
|
if (event.pressed) {
|
|
if (IS_TAPPING_KEY(event.key)) {
|
|
#ifndef TAPPING_FORCE_HOLD
|
|
if (!tapping_key.tap.interrupted && tapping_key.tap.count > 0) {
|
|
// sequential tap.
|
|
keyp->tap = tapping_key.tap;
|
|
if (keyp->tap.count < 15) keyp->tap.count += 1;
|
|
debug("Tapping: Tap press("); debug_dec(keyp->tap.count); debug(")\n");
|
|
process_record(keyp);
|
|
tapping_key = *keyp;
|
|
debug_tapping_key();
|
|
return true;
|
|
}
|
|
#endif
|
|
// FIX: start new tap again
|
|
tapping_key = *keyp;
|
|
return true;
|
|
} else if (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;
|
|
waiting_buffer_scan_tap();
|
|
debug_tapping_key();
|
|
return true;
|
|
} else {
|
|
// should none in buffer
|
|
// FIX: interrupted when other key is pressed
|
|
tapping_key.tap.interrupted = true;
|
|
process_record(keyp);
|
|
return true;
|
|
}
|
|
} else {
|
|
if (!IS_NOEVENT(event)) debug("Tapping: other key just after tap.\n");
|
|
process_record(keyp);
|
|
return true;
|
|
}
|
|
} else {
|
|
// FIX: process_action here?
|
|
// timeout. no sequential tap.
|
|
debug("Tapping: End(Timeout after releasing last tap): ");
|
|
debug_event(event); debug("\n");
|
|
tapping_key = (keyrecord_t){};
|
|
debug_tapping_key();
|
|
return false;
|
|
}
|
|
}
|
|
// not tapping state
|
|
else {
|
|
if (event.pressed && is_tap_key(event.key)) {
|
|
debug("Tapping: Start(Press tap key).\n");
|
|
tapping_key = *keyp;
|
|
process_record_tap_hint(&tapping_key);
|
|
waiting_buffer_scan_tap();
|
|
debug_tapping_key();
|
|
return true;
|
|
} else {
|
|
process_record(keyp);
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Waiting buffer
|
|
*/
|
|
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;
|
|
}
|
|
|
|
waiting_buffer[waiting_buffer_head] = record;
|
|
waiting_buffer_head = (waiting_buffer_head + 1) % WAITING_BUFFER_SIZE;
|
|
|
|
debug("waiting_buffer_enq: "); debug_waiting_buffer();
|
|
return true;
|
|
}
|
|
|
|
void waiting_buffer_clear(void)
|
|
{
|
|
waiting_buffer_head = 0;
|
|
waiting_buffer_tail = 0;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
__attribute__((unused))
|
|
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;
|
|
}
|
|
|
|
/* scan buffer for tapping */
|
|
void waiting_buffer_scan_tap(void)
|
|
{
|
|
// tapping already is settled
|
|
if (tapping_key.tap.count > 0) return;
|
|
// invalid state: tapping_key released && tap.count == 0
|
|
if (!tapping_key.event.pressed) return;
|
|
|
|
for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
|
|
if (IS_TAPPING_KEY(waiting_buffer[i].event.key) &&
|
|
!waiting_buffer[i].event.pressed &&
|
|
WITHIN_TAPPING_TERM(waiting_buffer[i].event)) {
|
|
tapping_key.tap.count = 1;
|
|
waiting_buffer[i].tap.count = 1;
|
|
process_record(&tapping_key);
|
|
|
|
debug("waiting_buffer_scan_tap: found at ["); debug_dec(i); debug("]\n");
|
|
debug_waiting_buffer();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* debug print
|
|
*/
|
|
static void debug_tapping_key(void)
|
|
{
|
|
debug("TAPPING_KEY="); debug_record(tapping_key); debug("\n");
|
|
}
|
|
|
|
static void debug_waiting_buffer(void)
|
|
{
|
|
debug("{ ");
|
|
for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
|
|
debug("["); debug_dec(i); debug("]="); debug_record(waiting_buffer[i]); debug(" ");
|
|
}
|
|
debug("}\n");
|
|
}
|
|
|
|
#endif
|