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/* Copyright 2016 Jack Humbert
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "quantum.h"
#ifndef NO_ACTION_ONESHOT
uint8_t get_oneshot_mods(void);
#endif
static uint16_t last_td;
static int8_t highest_td = -1;
void qk_tap_dance_pair_on_each_tap(qk_tap_dance_state_t *state, void *user_data) {
qk_tap_dance_pair_t *pair = (qk_tap_dance_pair_t *)user_data;
if (state->count == 2) {
register_code16(pair->kc2);
state->finished = true;
}
}
void qk_tap_dance_pair_finished(qk_tap_dance_state_t *state, void *user_data) {
qk_tap_dance_pair_t *pair = (qk_tap_dance_pair_t *)user_data;
if (state->count == 1) {
register_code16(pair->kc1);
} else if (state->count == 2) {
register_code16(pair->kc2);
}
}
void qk_tap_dance_pair_reset(qk_tap_dance_state_t *state, void *user_data) {
qk_tap_dance_pair_t *pair = (qk_tap_dance_pair_t *)user_data;
if (state->count == 1) {
unregister_code16(pair->kc1);
} else if (state->count == 2) {
unregister_code16(pair->kc2);
}
}
void qk_tap_dance_dual_role_on_each_tap(qk_tap_dance_state_t *state, void *user_data) {
qk_tap_dance_dual_role_t *pair = (qk_tap_dance_dual_role_t *)user_data;
if (state->count == 2) {
layer_move(pair->layer);
state->finished = true;
}
}
void qk_tap_dance_dual_role_finished(qk_tap_dance_state_t *state, void *user_data) {
qk_tap_dance_dual_role_t *pair = (qk_tap_dance_dual_role_t *)user_data;
if (state->count == 1) {
register_code16(pair->kc);
} else if (state->count == 2) {
pair->layer_function(pair->layer);
}
}
void qk_tap_dance_dual_role_reset(qk_tap_dance_state_t *state, void *user_data) {
qk_tap_dance_dual_role_t *pair = (qk_tap_dance_dual_role_t *)user_data;
if (state->count == 1) {
unregister_code16(pair->kc);
}
}
static inline void _process_tap_dance_action_fn(qk_tap_dance_state_t *state, void *user_data, qk_tap_dance_user_fn_t fn) {
if (fn) {
fn(state, user_data);
}
}
static inline void process_tap_dance_action_on_each_tap(qk_tap_dance_action_t *action) { _process_tap_dance_action_fn(&action->state, action->user_data, action->fn.on_each_tap); }
static inline void process_tap_dance_action_on_dance_finished(qk_tap_dance_action_t *action) {
if (action->state.finished) return;
action->state.finished = true;
add_mods(action->state.oneshot_mods);
add_weak_mods(action->state.weak_mods);
send_keyboard_report();
_process_tap_dance_action_fn(&action->state, action->user_data, action->fn.on_dance_finished);
}
static inline void process_tap_dance_action_on_reset(qk_tap_dance_action_t *action) {
_process_tap_dance_action_fn(&action->state, action->user_data, action->fn.on_reset);
del_mods(action->state.oneshot_mods);
del_weak_mods(action->state.weak_mods);
send_keyboard_report();
}
void preprocess_tap_dance(uint16_t keycode, keyrecord_t *record) {
qk_tap_dance_action_t *action;
if (!record->event.pressed) return;
if (highest_td == -1) return;
for (int i = 0; i <= highest_td; i++) {
action = &tap_dance_actions[i];
if (action->state.count) {
if (keycode == action->state.keycode && keycode == last_td) continue;
action->state.interrupted = true;
action->state.interrupting_keycode = keycode;
process_tap_dance_action_on_dance_finished(action);
reset_tap_dance(&action->state);
// Tap dance actions can leave some weak mods active (e.g., if the tap dance is mapped to a keycode with
// modifiers), but these weak mods should not affect the keypress which interrupted the tap dance.
clear_weak_mods();
}
}
}
bool process_tap_dance(uint16_t keycode, keyrecord_t *record) {
uint16_t idx = keycode - QK_TAP_DANCE;
qk_tap_dance_action_t *action;
switch (keycode) {
case QK_TAP_DANCE ... QK_TAP_DANCE_MAX:
if ((int16_t)idx > highest_td) highest_td = idx;
action = &tap_dance_actions[idx];
action->state.pressed = record->event.pressed;
if (record->event.pressed) {
action->state.keycode = keycode;
action->state.count++;
action->state.timer = timer_read();
#ifndef NO_ACTION_ONESHOT
action->state.oneshot_mods = get_oneshot_mods();
#else
action->state.oneshot_mods = 0;
#endif
action->state.weak_mods = get_mods();
action->state.weak_mods |= get_weak_mods();
process_tap_dance_action_on_each_tap(action);
last_td = keycode;
} else {
if (action->state.count && action->state.finished) {
reset_tap_dance(&action->state);
}
}
break;
}
return true;
}
void tap_dance_task() {
if (highest_td == -1) return;
uint16_t tap_user_defined;
for (uint8_t i = 0; i <= highest_td; i++) {
qk_tap_dance_action_t *action = &tap_dance_actions[i];
if (action->custom_tapping_term > 0) {
tap_user_defined = action->custom_tapping_term;
} else {
#ifdef TAPPING_TERM_PER_KEY
tap_user_defined = get_tapping_term(action->state.keycode, NULL);
#else
tap_user_defined = TAPPING_TERM;
#endif
}
if (action->state.count && timer_elapsed(action->state.timer) > tap_user_defined) {
process_tap_dance_action_on_dance_finished(action);
reset_tap_dance(&action->state);
}
}
}
void reset_tap_dance(qk_tap_dance_state_t *state) {
qk_tap_dance_action_t *action;
if (state->pressed) return;
action = &tap_dance_actions[state->keycode - QK_TAP_DANCE];
process_tap_dance_action_on_reset(action);
state->count = 0;
state->interrupted = false;
state->finished = false;
state->interrupting_keycode = 0;
last_td = 0;
}
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