/* 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"
#include "action_tapping.h"
uint8_t get_oneshot_mods(void);
static uint16_t last_td;
static int8_t highest_td = -1;
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);
}
}
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);
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);
send_keyboard_report();
}
bool process_tap_dance(uint16_t keycode, keyrecord_t *record) {
uint16_t idx = keycode - QK_TAP_DANCE;
qk_tap_dance_action_t *action;
if (last_td && last_td != keycode) {
(&tap_dance_actions[last_td - QK_TAP_DANCE])->state.interrupted = true;
}
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();
action->state.oneshot_mods = get_oneshot_mods();
process_tap_dance_action_on_each_tap (action);
if (last_td && last_td != keycode) {
qk_tap_dance_action_t *paction = &tap_dance_actions[last_td - QK_TAP_DANCE];
paction->state.interrupted = true;
process_tap_dance_action_on_dance_finished (paction);
reset_tap_dance (&paction->state);
}
last_td = keycode;
}
break;
default:
if (!record->event.pressed)
return true;
if (highest_td == -1)
return true;
for (int i = 0; i <= highest_td; i++) {
action = &tap_dance_actions[i];
if (action->state.count == 0)
continue;
action->state.interrupted = true;
process_tap_dance_action_on_dance_finished (action);
reset_tap_dance (&action->state);
}
break;
}
return true;
}
void matrix_scan_tap_dance () {
if (highest_td == -1)
return;
for (int i = 0; i <= highest_td; i++) {
qk_tap_dance_action_t *action = &tap_dance_actions[i];
if (action->state.count && timer_elapsed (action->state.timer) > TAPPING_TERM) {
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;
last_td = 0;
}