117 lines
No EOL
3 KiB
C
117 lines
No EOL
3 KiB
C
#include "process_combo.h"
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#include "print.h"
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#define SEND_KEY(key) \
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do { \
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register_code16(key); \
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send_keyboard_report(); \
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unregister_code16(key); \
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} while(0)
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#define COMBO_TIMER_ELAPSED -1
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#if COMBO_TERM
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#define IS_COMBO_KEY_HELD(combo) (COMBO_TIMER_ELAPSED == combo->timer ? false : true)
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#define RESET_COMBO_TIMER_AND_KEY(combo) combo->timer = 0; combo->key = 0
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#else
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#define IS_COMBO_KEY_HELD(combo) (true)
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#define RESET_COMBO_TIMER_AND_KEY(combo) do {} while (0)
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#endif
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__attribute__ ((weak))
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combo_t key_combos[COMBO_COUNT] = {
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};
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static inline void reset_combo(combo_t *combo)
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{
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combo->state = 0;
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RESET_COMBO_TIMER_AND_KEY(combo);
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}
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#define ALL_COMBO_KEYS_ARE_DOWN (((1<<count)-1) == combo->state)
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#define NO_COMBO_KEYS_ARE_DOWN (0 == combo->state)
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#define KEY_STATE_DOWN(key) do{ combo->state |= (1<<key); } while(0)
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#define KEY_STATE_UP(key) do{ combo->state &= ~(1<<key); } while(0)
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static bool process_single_combo(combo_t *combo, uint16_t keycode, keyrecord_t *record)
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{
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uint8_t count = 0;
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uint8_t index = -1;
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/* Find index of keycode and number of combo keys */
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for (const uint16_t *keys = combo->keys; ;++count) {
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uint16_t key = pgm_read_word(&keys[count]);
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if (keycode == key) index = count;
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if (COMBO_END == key) break;
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}
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/* Return if not a combo key */
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if (-1 == index) return false;
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bool is_combo_active = IS_COMBO_KEY_HELD(combo);
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if (record->event.pressed) {
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KEY_STATE_DOWN(index);
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#if COMBO_TERM
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if (is_combo_active) {
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combo->timer = timer_read();
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combo->key = keycode;
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}
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#endif
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} else {
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if (is_combo_active && combo->state) { /* Combo key was tapped */
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RESET_COMBO_TIMER_AND_KEY(combo);
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SEND_KEY(keycode);
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}
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#if COMBO_TERM
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if (!is_combo_active && keycode == combo->key) { /* Held combo key was released */
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unregister_code16(combo->key);
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}
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#endif
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KEY_STATE_UP(index);
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}
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if (ALL_COMBO_KEYS_ARE_DOWN && is_combo_active) {
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SEND_KEY(combo->action);
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reset_combo(combo);
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}
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if(NO_COMBO_KEYS_ARE_DOWN && !is_combo_active) {
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reset_combo(combo);
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}
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return is_combo_active;
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}
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bool process_combo(uint16_t keycode, keyrecord_t *record)
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{
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bool is_combo_key = false;
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for (int i = 0; i < COMBO_COUNT; ++i) {
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combo_t *combo = &key_combos[i];
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is_combo_key |= process_single_combo(combo, keycode, record);
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}
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return !is_combo_key;
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}
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void matrix_scan_combo(void)
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{
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#if COMBO_TERM
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for (int i = 0; i < COMBO_COUNT; ++i) {
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combo_t *combo = &key_combos[i];
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if (combo->timer &&
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combo->timer != COMBO_TIMER_ELAPSED &&
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timer_elapsed(combo->timer) > COMBO_TERM) {
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combo->timer = COMBO_TIMER_ELAPSED;
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unregister_code16(combo->key);
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register_code16(combo->key);
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}
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}
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#endif
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} |