200 lines
6.6 KiB
C
200 lines
6.6 KiB
C
/* Copyright 2016 Jack Humbert
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "process_tap_dance.h"
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#include "quantum.h"
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#include "action_layer.h"
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#include "action_tapping.h"
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#include "action_util.h"
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#include "timer.h"
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#include "wait.h"
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#include "keymap_introspection.h"
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static uint16_t active_td;
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static uint16_t last_tap_time;
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void tap_dance_pair_on_each_tap(tap_dance_state_t *state, void *user_data) {
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tap_dance_pair_t *pair = (tap_dance_pair_t *)user_data;
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if (state->count == 2) {
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register_code16(pair->kc2);
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state->finished = true;
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}
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}
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void tap_dance_pair_finished(tap_dance_state_t *state, void *user_data) {
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tap_dance_pair_t *pair = (tap_dance_pair_t *)user_data;
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register_code16(pair->kc1);
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}
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void tap_dance_pair_reset(tap_dance_state_t *state, void *user_data) {
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tap_dance_pair_t *pair = (tap_dance_pair_t *)user_data;
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if (state->count == 1) {
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wait_ms(TAP_CODE_DELAY);
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unregister_code16(pair->kc1);
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} else if (state->count == 2) {
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unregister_code16(pair->kc2);
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}
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}
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void tap_dance_dual_role_on_each_tap(tap_dance_state_t *state, void *user_data) {
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tap_dance_dual_role_t *pair = (tap_dance_dual_role_t *)user_data;
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if (state->count == 2) {
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layer_move(pair->layer);
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state->finished = true;
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}
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}
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void tap_dance_dual_role_finished(tap_dance_state_t *state, void *user_data) {
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tap_dance_dual_role_t *pair = (tap_dance_dual_role_t *)user_data;
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if (state->count == 1) {
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register_code16(pair->kc);
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} else if (state->count == 2) {
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pair->layer_function(pair->layer);
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}
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}
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void tap_dance_dual_role_reset(tap_dance_state_t *state, void *user_data) {
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tap_dance_dual_role_t *pair = (tap_dance_dual_role_t *)user_data;
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if (state->count == 1) {
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wait_ms(TAP_CODE_DELAY);
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unregister_code16(pair->kc);
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}
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}
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static inline void _process_tap_dance_action_fn(tap_dance_state_t *state, void *user_data, tap_dance_user_fn_t fn) {
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if (fn) {
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fn(state, user_data);
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}
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}
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static inline void process_tap_dance_action_on_each_tap(tap_dance_action_t *action) {
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action->state.count++;
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action->state.weak_mods = get_mods();
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action->state.weak_mods |= get_weak_mods();
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#ifndef NO_ACTION_ONESHOT
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action->state.oneshot_mods = get_oneshot_mods();
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#endif
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_process_tap_dance_action_fn(&action->state, action->user_data, action->fn.on_each_tap);
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}
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static inline void process_tap_dance_action_on_each_release(tap_dance_action_t *action) {
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_process_tap_dance_action_fn(&action->state, action->user_data, action->fn.on_each_release);
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}
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static inline void process_tap_dance_action_on_reset(tap_dance_action_t *action) {
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_process_tap_dance_action_fn(&action->state, action->user_data, action->fn.on_reset);
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del_weak_mods(action->state.weak_mods);
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#ifndef NO_ACTION_ONESHOT
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del_mods(action->state.oneshot_mods);
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#endif
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send_keyboard_report();
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action->state = (const tap_dance_state_t){0};
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}
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static inline void process_tap_dance_action_on_dance_finished(tap_dance_action_t *action) {
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if (!action->state.finished) {
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action->state.finished = true;
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add_weak_mods(action->state.weak_mods);
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#ifndef NO_ACTION_ONESHOT
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add_mods(action->state.oneshot_mods);
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#endif
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send_keyboard_report();
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_process_tap_dance_action_fn(&action->state, action->user_data, action->fn.on_dance_finished);
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}
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active_td = 0;
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if (!action->state.pressed) {
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// There will not be a key release event, so reset now.
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process_tap_dance_action_on_reset(action);
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}
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}
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bool preprocess_tap_dance(uint16_t keycode, keyrecord_t *record) {
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tap_dance_action_t *action;
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if (!record->event.pressed) return false;
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if (!active_td || keycode == active_td) return false;
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action = tap_dance_get(QK_TAP_DANCE_GET_INDEX(active_td));
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action->state.interrupted = true;
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action->state.interrupting_keycode = keycode;
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process_tap_dance_action_on_dance_finished(action);
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// Tap dance actions can leave some weak mods active (e.g., if the tap dance is mapped to a keycode with
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// modifiers), but these weak mods should not affect the keypress which interrupted the tap dance.
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clear_weak_mods();
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// Signal that a tap dance has been finished due to being interrupted,
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// therefore the keymap lookup for the currently processed event needs to
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// be repeated with the current layer state that might have been updated by
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// the finished tap dance.
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return true;
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}
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bool process_tap_dance(uint16_t keycode, keyrecord_t *record) {
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int td_index;
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tap_dance_action_t *action;
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switch (keycode) {
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case QK_TAP_DANCE ... QK_TAP_DANCE_MAX:
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td_index = QK_TAP_DANCE_GET_INDEX(keycode);
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if (td_index >= tap_dance_count()) {
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return false;
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}
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action = tap_dance_get(td_index);
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action->state.pressed = record->event.pressed;
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if (record->event.pressed) {
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last_tap_time = timer_read();
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process_tap_dance_action_on_each_tap(action);
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active_td = action->state.finished ? 0 : keycode;
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} else {
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process_tap_dance_action_on_each_release(action);
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if (action->state.finished) {
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process_tap_dance_action_on_reset(action);
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if (active_td == keycode) {
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active_td = 0;
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}
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}
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}
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break;
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}
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return true;
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}
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void tap_dance_task(void) {
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tap_dance_action_t *action;
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if (!active_td || timer_elapsed(last_tap_time) <= GET_TAPPING_TERM(active_td, &(keyrecord_t){})) return;
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action = tap_dance_get(QK_TAP_DANCE_GET_INDEX(active_td));
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if (!action->state.interrupted) {
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process_tap_dance_action_on_dance_finished(action);
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}
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}
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void reset_tap_dance(tap_dance_state_t *state) {
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active_td = 0;
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process_tap_dance_action_on_reset((tap_dance_action_t *)state);
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}
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