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// Copyright 2022 Sergey Vlasov (@sigprof)
// SPDX-License-Identifier: GPL-2.0-or-later
#include "quantum.h"
#include "tap_dance_defs.h"
// Implement custom keycodes which are used to check that the layer switching
// behaves properly.
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
switch (keycode) {
case FAST_AB:
case SLOW_AB:
if (record->event.pressed) {
tap_code(KC_A);
} else {
tap_code(KC_B);
}
return keycode == SLOW_AB;
case FAST_CD:
case SLOW_CD:
if (record->event.pressed) {
tap_code(KC_C);
} else {
tap_code(KC_D);
}
return keycode == SLOW_CD;
}
return true;
}
// Implement a custom tap dance with the following behavior:
// - single tap: KC_APP
// - single hold: MO(1)
// - double tap/hold: KC_RCTL
// (The single tap and hold actions are mostly equivalent to LT(1, KC_APP).)
enum lt_app_state {
LTA_NONE,
LTA_SINGLE_TAP,
LTA_SINGLE_HOLD,
LTA_DOUBLE_HOLD,
};
static enum lt_app_state saved_lt_app_state;
static enum lt_app_state get_lt_app_state(tap_dance_state_t *state) {
if (state->count == 1) {
if (!state->pressed) {
return LTA_SINGLE_TAP;
} else {
return LTA_SINGLE_HOLD;
}
} else if (state->count == 2) {
return LTA_DOUBLE_HOLD;
} else {
return LTA_NONE;
}
}
static void lt_app_finished(tap_dance_state_t *state, void *user_data) {
saved_lt_app_state = get_lt_app_state(state);
switch (saved_lt_app_state) {
case LTA_NONE:
break;
case LTA_SINGLE_TAP:
register_code(KC_APP);
break;
case LTA_SINGLE_HOLD:
layer_on(1);
break;
case LTA_DOUBLE_HOLD:
register_code(KC_RCTL);
break;
}
}
static void lt_app_reset(tap_dance_state_t *state, void *user_data) {
switch (saved_lt_app_state) {
case LTA_NONE:
break;
case LTA_SINGLE_TAP:
unregister_code(KC_APP);
break;
case LTA_SINGLE_HOLD:
layer_off(1);
break;
case LTA_DOUBLE_HOLD:
unregister_code(KC_RCTL);
break;
}
}
tap_dance_action_t tap_dance_actions[] = {
[TD_L_MOVE] = ACTION_TAP_DANCE_LAYER_MOVE(KC_APP, 1),
[TD_L_TOGG] = ACTION_TAP_DANCE_LAYER_TOGGLE(KC_APP, 1),
[TD_LT_APP] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, lt_app_finished, lt_app_reset),
};
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