quantum/process_keycode/process_chording.c

   1 #include "process_chording.h"
   2
   3 bool keys_chord(uint8_t keys[]) {
   4   uint8_t keys_size = sizeof(keys)/sizeof(keys[0]);
   5   bool pass = true;
   6   uint8_t in = 0;
   7   for (uint8_t i = 0; i < chord_key_count; i++) {
   8     bool found = false;
   9     for (uint8_t j = 0; j < keys_size; j++) {
  10       if (chord_keys[i] == (keys[j] & 0xFF)) {
  11         in++; // detects key in chord
  12         found = true;
  13         break;
  14       }
  15     }
  16     if (found)
  17       continue;
  18     if (chord_keys[i] != 0)  {
  19       pass = false; // makes sure rest are blank
  20     }
  21   }
  22   return (pass && (in == keys_size));
  23 }
  24
  25 bool process_chording(uint16_t keycode, keyrecord_t *record) {
  26   if (keycode >= QK_CHORDING && keycode <= QK_CHORDING_MAX) {
  27     if (record->event.pressed) {
  28       if (!chording) {
  29         chording = true;
  30         for (uint8_t i = 0; i < CHORDING_MAX; i++)
  31           chord_keys[i] = 0;
  32         chord_key_count = 0;
  33         chord_key_down = 0;
  34       }
  35       chord_keys[chord_key_count] = (keycode & 0xFF);
  36       chord_key_count++;
  37       chord_key_down++;
  38       return false;
  39     } else {
  40       if (chording) {
  41         chord_key_down--;
  42         if (chord_key_down == 0) {
  43           chording = false;
  44           // Chord Dictionary
  45           if (keys_chord((uint8_t[]){KC_ENTER, KC_SPACE})) {
  46             register_code(KC_A);
  47             unregister_code(KC_A);
  48             return false;
  49           }
  50           for (uint8_t i = 0; i < chord_key_count; i++) {
  51             register_code(chord_keys[i]);
  52             unregister_code(chord_keys[i]);
  53             return false;
  54           }
  55         }
  56       }
  57     }
  58   }
  59   return true;
  60 }