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// Copyright 2021 Google LLC.
// SPDX-License-Identifier: Apache-2.0
#include "caps_word.h"
#ifndef IS_COMMAND
# define IS_COMMAND() (get_mods() == MOD_MASK_SHIFT)
#endif
bool caps_word_enabled = false;
bool caps_word_shifted = false;
/**
* @brief Handler for Caps Word feature.
*
* This checks the keycodes, and applies shift to the correct keys, if and when needid.
*
* @param keycode Keycode from matrix
* @param record keyrecord_t data structure
* @return true Continue processing keycode and sent to host
* @return false Stop processing keycode, and do not send to host
*/
bool process_caps_word(uint16_t keycode, keyrecord_t* record) {
if (!caps_word_enabled) {
// Pressing both shift keys at the same time enables caps word.
if (IS_COMMAND()) {
clear_mods();
clear_oneshot_mods();
caps_word_shifted = false;
caps_word_enabled = true;
return false;
}
return true;
}
if (!record->event.pressed) {
return true;
}
if (!((get_mods() | get_oneshot_mods()) & ~MOD_MASK_SHIFT)) {
switch (keycode) {
case QK_MOD_TAP ... QK_MOD_TAP_MAX:
case QK_LAYER_TAP ... QK_LAYER_TAP_MAX:
// Earlier return if this has not been considered tapped yet.
if (record->tap.count == 0) {
return true;
}
// Get the base tapping keycode of a mod- or layer-tap key.
keycode &= 0xff;
}
switch (keycode) {
// Letter keys should be shifted.
case KC_A ... KC_Z:
if (!caps_word_shifted) {
register_code(KC_LSFT);
}
caps_word_shifted = true;
return true;
// Keycodes that continue caps word but shouldn't get shifted.
case KC_1 ... KC_0:
case KC_BSPC:
case KC_MINS:
case KC_UNDS:
if (caps_word_shifted) {
unregister_code(KC_LSFT);
}
caps_word_shifted = false;
return true;
// Any other keycode disables caps word.
}
}
// Disable caps word.
caps_word_enabled = false;
if (caps_word_shifted) {
unregister_code(KC_LSFT);
}
caps_word_shifted = false;
return true;
}
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