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/* Copyright 2023 Paulo Pereira
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "custom_shift_keys.h"
bool process_custom_shift_keys(uint16_t keycode, keyrecord_t *record) {
static uint16_t registered_keycode = KC_NO;
// If a custom shift key is registered, then this event is either
// releasing it or manipulating another key at the same time. Either way,
// we release the currently registered key.
if (registered_keycode != KC_NO) {
unregister_code16(registered_keycode);
registered_keycode = KC_NO;
}
if (record->event.pressed) { // Press event.
const uint8_t mods = get_mods();
#ifndef NO_ACTION_ONESHOT
if ((mods | get_weak_mods() | get_oneshot_mods()) & MOD_MASK_SHIFT) {
#else
if ((mods | get_weak_mods()) & MOD_MASK_SHIFT) { // Shift is held.
#endif // NO_ACTION_ONESHOT
// Continue default handling if this is a tap-hold key being held.
if ((IS_QK_MOD_TAP(keycode) || IS_QK_LAYER_TAP(keycode)) &&
record->tap.count == 0) {
return true;
}
// Search for a custom shift key whose keycode is `keycode`.
for (int i = 0; i < NUM_CUSTOM_SHIFT_KEYS; ++i) {
if (keycode == custom_shift_keys[i].keycode) {
registered_keycode = custom_shift_keys[i].shifted_keycode;
if (IS_QK_MODS(registered_keycode) && // Should key be shifted?
(QK_MODS_GET_MODS(registered_keycode) & MOD_LSFT) != 0) {
register_code16(registered_keycode); // If so, press directly.
} else {
// If not, cancel shift mods, press the key, and restore mods.
del_weak_mods(MOD_MASK_SHIFT);
#ifndef NO_ACTION_ONESHOT
del_oneshot_mods(MOD_MASK_SHIFT);
#endif // NO_ACTION_ONESHOT
unregister_mods(MOD_MASK_SHIFT);
register_code16(registered_keycode);
set_mods(mods);
}
return false;
}
}
}
}
return true; // Continue with default handling.
}
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