#include "quantum.h"
#include "action_pseudo_lut.h"
static uint8_t send_key_shift_bit[SHIFT_BIT_SIZE];
/*
* Pseudo layout action.
* This action converts a keycode in order to output the character according to the keymap you specified
* still your keyboard layout recognized wrongly on your OS.
* Memo: Using other layer keymap to get keycode
*/
void action_pseudo_lut(keyrecord_t *record, uint8_t base_keymap_id, const uint16_t (*keymap)[2]) {
static uint8_t prev_shift;
uint16_t keycode;
uint16_t pseudo_keycode;
/* get keycode from keymap you specified */
keycode = keymap_key_to_keycode(base_keymap_id, record->event.key);
prev_shift = keyboard_report->mods & (MOD_BIT(KC_LSFT) | MOD_BIT(KC_RSFT));
if (record->event.pressed) {
/* when magic commands entered, keycode does not converted */
if (IS_COMMAND()) {
if (prev_shift) {
add_shift_bit(keycode);
}
register_code(keycode);
return;
}
if (prev_shift) {
pseudo_keycode = convert_keycode(keymap, keycode, true);
dprintf("pressed: %02X, converted: %04X\n", keycode, pseudo_keycode);
add_shift_bit(keycode);
if (IS_LSFT(pseudo_keycode)) {
register_code(QK_LSFT ^ pseudo_keycode);
} else {
/* delete shift mod temporarily */
del_mods(prev_shift);
send_keyboard_report();
register_code(pseudo_keycode);
add_mods(prev_shift);
send_keyboard_report();
}
} else {
pseudo_keycode = convert_keycode(keymap, keycode, false);
dprintf("pressed: %02X, converted: %04X\n", keycode, pseudo_keycode);
if (IS_LSFT(pseudo_keycode)) {
add_weak_mods(MOD_BIT(KC_LSFT));
send_keyboard_report();
register_code(QK_LSFT ^ pseudo_keycode);
/* on Windows, prevent key repeat to avoid unintended output */
unregister_code(QK_LSFT ^ pseudo_keycode);
del_weak_mods(MOD_BIT(KC_LSFT));
send_keyboard_report();
} else {
register_code(pseudo_keycode);
}
}
} else {
if (get_shift_bit(keycode)) {
del_shift_bit(keycode);
pseudo_keycode = convert_keycode(keymap, keycode, true);
} else {
pseudo_keycode = convert_keycode(keymap, keycode, false);
}
dprintf("released: %02X, converted: %04X\n", keycode, pseudo_keycode);
if (IS_LSFT(pseudo_keycode)) {
unregister_code(QK_LSFT ^ pseudo_keycode);
} else {
unregister_code(pseudo_keycode);
}
}
}
uint16_t convert_keycode(const uint16_t (*keymap)[2], uint16_t keycode, bool shift_modded)
{
uint16_t pseudo_keycode;
switch (keycode) {
case KC_A ... KC_CAPSLOCK:
#if defined(__AVR__)
if (shift_modded) {
pseudo_keycode = pgm_read_word(&keymap[keycode][1]);
} else {
pseudo_keycode = pgm_read_word(&keymap[keycode][0]);
}
#else
if (shift_modded) {
pseudo_keycode = keymap[keycode][1];
} else {
pseudo_keycode = keymap[keycode][0];
}
#endif
/* if undefined, use got keycode as it is */
if (pseudo_keycode == 0x00) {
if (shift_modded) {
pseudo_keycode = S(keycode);
} else {
pseudo_keycode = keycode;
}
}
break;
default:
if (shift_modded) {
pseudo_keycode = S(keycode);
} else {
pseudo_keycode = keycode;
}
break;
}
return pseudo_keycode;
}
uint8_t get_shift_bit(uint16_t keycode) {
if ((keycode >> 3) < SHIFT_BIT_SIZE) {
return send_key_shift_bit[keycode >> 3] & (1 << (keycode & 7));
} else {
dprintf("get_shift_bit: Can't get shift bit. keycode: %02X\n", keycode);
return 0;
}
}
void add_shift_bit(uint16_t keycode) {
if ((keycode >> 3) < SHIFT_BIT_SIZE) {
send_key_shift_bit[keycode >> 3] |= (1 << (keycode & 7));
} else {
dprintf("add_shift_bit: Can't add shift bit. keycode: %02X\n", keycode);
}
}
void del_shift_bit(uint16_t keycode) {
if ((keycode >> 3) < SHIFT_BIT_SIZE) {
send_key_shift_bit[keycode >> 3] &= ~(1 << (keycode & 7));
} else {
dprintf("del_shift_bit: Can't delete shift bit. keycode: %02X\n", keycode);
}
}