qmk-dactyl-manuform-a/users/replicaJunction/features/num_word.c

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/* Copyright 2021 Joshua T.
*
* 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 2 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 "num_word.h"
static uint16_t num_word_timer = 0;
static bool is_num_word_on = false;
bool is_num_word_enabled(void) {
return is_num_word_on;
}
void enable_num_word(void) {
if (is_num_word_on) return;
is_num_word_on = true;
layer_on(L_NUMBERS);
}
void disable_num_word(void) {
if (!is_num_word_on) return;
is_num_word_on = false;
layer_off(L_NUMBERS);
}
void toggle_num_word(void) {
if (is_num_word_on) {
disable_num_word();
}
else {
enable_num_word();
}
}
bool should_terminate_num_word(uint16_t keycode, const keyrecord_t *record) {
switch (keycode) {
// Keycodes which should not disable num word mode.
// We could probably be more brief with these definitions by using
// a couple more ranges, but I believe "explicit is better than
// implicit"
case KC_1 ... KC_0:
case KC_EQL:
case KC_SCLN:
case KC_MINS:
case KC_DOT:
// Numpad keycodes
case KC_P1 ... KC_P0:
case KC_PSLS ... KC_PPLS:
case KC_PDOT:
// Misc
case KC_UNDS:
case KC_BSPC:
return false;
default:
if (record->event.pressed) {
return true;
}
return false;
}
// Should be unreachable
return false;
}
bool process_record_num_word(uint16_t keycode, const keyrecord_t *record) {
// Handle the custom keycodes that go with this feature
if (keycode == NUMWORD) {
if (record->event.pressed) {
enable_num_word();
num_word_timer = timer_read();
return false;
}
else {
if (timer_elapsed(num_word_timer) > TAPPING_TERM) {
// If the user held the key longer than TAPPING_TERM,
// consider it a hold, and disable the behavior on
// key release.
disable_num_word();
return false;
}
}
}
// Other than the custom keycodes, nothing else in this feature will
// activate if the behavior is not on, so allow QMK to handle the
// event as usual
if (!is_num_word_on) return true;
// Nothing else acts on key release, either
if (!record->event.pressed) {
return true;
}
// Get the base keycode of a mod or layer tap key
switch (keycode) {
case QK_MOD_TAP ... QK_MOD_TAP_MAX:
case QK_LAYER_TAP ... QK_LAYER_TAP_MAX:
case QK_TAP_DANCE ... QK_TAP_DANCE_MAX:
// Earlier return if this has not been considered tapped yet
if (record->tap.count == 0)
return true;
keycode = keycode & 0xFF;
break;
default:
break;
}
if (should_terminate_num_word(keycode, record)) {
disable_num_word();
}
return true;
}