quantum/process_keycode/process_tap_dance.c

   1 #include "quantum.h"
   2
   3 static qk_tap_dance_state_t qk_tap_dance_state;
   4
   5 static void _process_tap_dance_action_pair (qk_tap_dance_state_t *state,
   6                                             uint16_t kc1, uint16_t kc2) {
   7   uint16_t kc;
   8
   9   if (state->count == 0)
  10     return;
  11
  12   kc = (state->count == 1) ? kc1 : kc2;
  13
  14   register_code (kc);
  15   unregister_code (kc);
  16
  17   if (state->count >= 2) {
  18     reset_tap_dance (state);
  19   }
  20 }
  21
  22 static void _process_tap_dance_action_fn (qk_tap_dance_state_t *state,
  23                                           qk_tap_dance_user_fn_t fn)
  24 {
  25   fn(state);
  26 }
  27
  28 void process_tap_dance_action (uint16_t keycode)
  29 {
  30   uint16_t idx = keycode - QK_TAP_DANCE;
  31   qk_tap_dance_action_t action;
  32
  33   action = tap_dance_actions[idx];
  34
  35   switch (action.type) {
  36   case QK_TAP_DANCE_TYPE_PAIR:
  37     _process_tap_dance_action_pair (&qk_tap_dance_state,
  38                                     action.pair.kc1, action.pair.kc2);
  39     break;
  40   case QK_TAP_DANCE_TYPE_FN:
  41     _process_tap_dance_action_fn (&qk_tap_dance_state, action.fn);
  42     break;
  43
  44   default:
  45     break;
  46   }
  47 }
  48
  49 bool process_tap_dance(uint16_t keycode, keyrecord_t *record) {
  50   bool r = true;
  51
  52   switch(keycode) {
  53   case QK_TAP_DANCE ... QK_TAP_DANCE_MAX:
  54     if (qk_tap_dance_state.keycode && qk_tap_dance_state.keycode != keycode) {
  55       process_tap_dance_action (qk_tap_dance_state.keycode);
  56     } else {
  57       r = false;
  58     }
  59
  60     if (record->event.pressed) {
  61       qk_tap_dance_state.keycode = keycode;
  62       qk_tap_dance_state.timer = timer_read ();
  63       qk_tap_dance_state.count++;
  64     }
  65     break;
  66
  67   default:
  68     if (qk_tap_dance_state.keycode) {
  69       process_tap_dance_action (qk_tap_dance_state.keycode);
  70
  71       reset_tap_dance (&qk_tap_dance_state);
  72     }
  73     break;
  74   }
  75
  76   return r;
  77 }
  78
  79 void matrix_scan_tap_dance () {
  80   if (qk_tap_dance_state.keycode && timer_elapsed (qk_tap_dance_state.timer) > TAPPING_TERM) {
  81     process_tap_dance_action (qk_tap_dance_state.keycode);
  82
  83     reset_tap_dance (&qk_tap_dance_state);
  84   }
  85 }
  86
  87 void reset_tap_dance (qk_tap_dance_state_t *state) {
  88   state->keycode = 0;
  89   state->count = 0;
  90 }