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/* Copyright 2023 Colin Lam (Ploopy Corporation)
* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
* Copyright 2019 Sunjun Kim
*
* 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 QMK_KEYBOARD_H
enum {
DEFAULT = 0,
FN1 = 1
};
enum {
KC_TOG_HOLD = QK_USER
};
// if the layer hold button is released before this timeout, it
// becomes a toggle.
const uint32_t layer_hold_timeout = 200;
// top left left, top left, top right, top right right, bottom left, bottom right
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
[DEFAULT] = LAYOUT(MS_BTN4, MS_BTN5, MS_BTN3, MS_BTN2, MS_BTN1, KC_TOG_HOLD),
[FN1] = LAYOUT(KC_BRIU, QK_BOOT, KC_MPLY, KC_MCTL, KC_BRID, KC_TRNS)
};
static bool fn1_layer_on = false;
static uint16_t fn1_release_timer = 0;
// probably shouldn't be doing this, but beats trying to keep track of
// it myself and getting out of sync.
extern bool is_drag_scroll;
layer_state_t layer_state_set_user(layer_state_t state) {
if (IS_LAYER_ON_STATE(state, FN1)) {
is_drag_scroll = true;
} else {
is_drag_scroll = false;
}
return state;
}
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
switch (keycode) {
case KC_TOG_HOLD:
if (record->event.pressed) {
/*
* if the layer is already on, do nothing, as the release event
* (where we want the layer to turn off) will compare against,
* what is at this point a very old ‘fn1_release_timer’ and so
* should release automatically.
*/
if (!fn1_layer_on) {
fn1_layer_on = true;
fn1_release_timer = timer_read();
}
} else {
if (timer_elapsed(fn1_release_timer) > layer_hold_timeout) {
fn1_layer_on = false;
}
}
if (fn1_layer_on) {
layer_on(FN1);
} else {
layer_off(FN1);
}
break;
}
return true;
}
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