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qmk_firmware_old/keyboards/skergo/keymaps/jmwtsn/features/mister_smith.c
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2022-02-14 17:08:23 -04:00

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3.8 KiB
C

// Copyright 2022 Google LLC, Copyright 2022 Jay Watson jmwtsn@gmail.com
//
// 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.
//
//
// Addapted from Pascal Getreuer's Mouse Turbo Click
// For full documentation of Pascal Getreuer's original project, see
// https://getreuer.info/posts/keyboards/mouse-turbo-click
#include "features/mister_smith.h"
// This library relies on that mouse keys and the deferred execution API are
// enabled, which we check for here. Enable them in you rules.mk by setting:
// MOUSEKEY_ENABLE = yes
// DEFERRED_EXEC_ENABLE = yes
#if !defined(MOUSEKEY_ENABLE)
#error "get_jiggy_withit: Please set `MOUSEKEY_ENABLE = yes` in rules.mk."
#elif !defined(DEFERRED_EXEC_ENABLE)
#error "get_jiggy_withit: Please set `DEFERRED_EXEC_ENABLE = yes` in rules.mk."
#else
// The click period in milliseconds. For instance a period of 200 ms would be 5
// clicks per second. Smaller period implies faster clicking.
//
// WARNING: The keyboard might become unresponsive if the period is too small.
// I suggest setting this no smaller than 50.
#define JIGGY_PERIOD_MS 120000
static deferred_token click_token = INVALID_DEFERRED_TOKEN;
static bool click_registered = false;
// Callback used with deferred execution. It alternates between tapping left
// and right mouse keys.
static uint32_t get_jiggy_callback(uint32_t trigger_time, void *cb_arg) {
if (click_registered) {
tap_code16(KC_MS_L);
click_registered = false;
} else {
click_registered = true;
tap_code16(KC_MS_R);
}
return JIGGY_PERIOD_MS / 2; // Execute callback again in half a period.
}
// Starts Turbo Click, begins the callback.
static void get_jiggy_start(void) {
if (click_token == INVALID_DEFERRED_TOKEN) {
uint32_t next_delay_ms = get_jiggy_callback(0, NULL);
click_token = defer_exec(next_delay_ms, get_jiggy_callback, NULL);
}
}
// Stops Turbo Click, cancels the callback.
static void get_jiggy_stop(void) {
if (click_token != INVALID_DEFERRED_TOKEN) {
cancel_deferred_exec(click_token);
click_token = INVALID_DEFERRED_TOKEN;
if (click_registered) {
// If mouse button is currently registered, release it.
unregister_code16(KC_MS_BTN1);
click_registered = false;
}
}
}
bool process_get_jiggy_withit(uint16_t keycode, keyrecord_t* record,
uint16_t get_jiggy_keycode) {
static bool locked = false;
static bool tapped = false;
static uint16_t tap_timer = 0;
if (keycode == get_jiggy_keycode) {
if (record->event.pressed) { // Turbo Click key was pressed.
if (tapped && !timer_expired(record->event.time, tap_timer)) {
// If the key was recently tapped, lock turbo click.
locked = true;
} else if (locked) {
// Otherwise if currently locked, unlock and stop.
locked = false;
tapped = false;
get_jiggy_stop();
return false;
}
// Set that the first tap occurred in a potential double tap.
tapped = true;
tap_timer = record->event.time + TAPPING_TERM;
get_jiggy_start();
} else if (!locked) {
// If not currently locked, stop on key release.
get_jiggy_stop();
}
return false;
} else {
// On an event with any other key, reset the double tap state.
tapped = false;
return true;
}
}
#endif