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// 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/select-word
#include "select_word.h"
// Mac users, uncomment this line:
// #define MAC_HOTKEYS
enum { STATE_NONE, STATE_SELECTED, STATE_WORD, STATE_FIRST_LINE, STATE_LINE };
bool process_select_word(uint16_t keycode, keyrecord_t* record,
uint16_t sel_keycode) {
static uint8_t state = STATE_NONE;
if (keycode == KC_LSFT || keycode == KC_RSFT) { return true; }
if (keycode == sel_keycode && record->event.pressed) { // On key press.
const uint8_t mods = get_mods();
#ifndef NO_ACTION_ONESHOT
const uint8_t all_mods = mods | get_oneshot_mods();
#else
const uint8_t all_mods = mods;
#endif // NO_ACTION_ONESHOT
if ((all_mods & MOD_MASK_SHIFT) == 0) { // Select word.
#ifdef MAC_HOTKEYS
register_code(KC_LALT);
#else
register_code(KC_LCTL);
#endif // MAC_HOTKEYS
if (state == STATE_NONE) {
tap_code(KC_RGHT);
tap_code(KC_LEFT);
}
register_code(KC_LSFT);
register_code(KC_RGHT);
state = STATE_WORD;
} else { // Select line.
if (state == STATE_NONE) {
clear_mods();
#ifndef NO_ACTION_ONESHOT
clear_oneshot_mods();
#endif // NO_ACTION_ONESHOT
#ifdef MAC_HOTKEYS
register_code16(LCTL(KC_A));
tap_code16(LSFT(KC_E));
unregister_code16(LCTL(KC_A));
#else
tap_code(KC_HOME);
tap_code16(LSFT(KC_END));
#endif // MAC_HOTKEYS
set_mods(mods);
state = STATE_FIRST_LINE;
} else {
register_code(KC_DOWN);
state = STATE_LINE;
}
}
return false;
}
// `sel_keycode` was released, or another key was pressed.
switch (state) {
case STATE_WORD:
unregister_code(KC_RGHT);
unregister_code(KC_LSFT);
#ifdef MAC_HOTKEYS
unregister_code(KC_LALT);
#else
unregister_code(KC_LCTL);
#endif // MAC_HOTKEYS
state = STATE_SELECTED;
break;
case STATE_FIRST_LINE:
state = STATE_SELECTED;
break;
case STATE_LINE:
unregister_code(KC_DOWN);
state = STATE_SELECTED;
break;
case STATE_SELECTED:
if (keycode == KC_ESC) {
tap_code(KC_RGHT);
state = STATE_NONE;
return false;
}
// Fallthrough.
default:
state = STATE_NONE;
}
return true;
}
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