qmk_firmware/users/ericgebhart/caps_word.c

82 lines
2.3 KiB
C

// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
//
// For full documentation, see
// https://getreuer.info/posts/keyboards/caps-word
#include "caps_word.h"
bool process_caps_word(uint16_t keycode, keyrecord_t* record) {
static bool caps_word_enabled = false;
static bool shifted = false;
#ifndef NO_ACTION_ONESHOT
const uint8_t mods = get_mods() | get_oneshot_mods();
#else
const uint8_t mods = get_mods();
#endif // NO_ACTION_ONESHOT
if (!caps_word_enabled) {
// Pressing both shift keys at the same time enables caps word.
if ((mods & MOD_MASK_SHIFT) == MOD_MASK_SHIFT) {
clear_mods();
#ifndef NO_ACTION_ONESHOT
clear_oneshot_mods();
#endif // NO_ACTION_ONESHOT
shifted = false;
caps_word_enabled = true;
return false;
}
return true;
}
if (!record->event.pressed) { return true; }
if (!(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 (!shifted) { register_code(KC_LSFT); }
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 (shifted) { unregister_code(KC_LSFT); }
shifted = false;
return true;
// Any other keycode disables caps word.
}
}
// Disable caps word.
caps_word_enabled = false;
if (shifted) { unregister_code(KC_LSFT); }
shifted = false;
return true;
}