488 lines
18 KiB
C
488 lines
18 KiB
C
/* Copyright 2017 Jeremy Cowgar
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#ifdef AUTO_SHIFT_ENABLE
|
|
|
|
# include <stdbool.h>
|
|
# include <stdio.h>
|
|
# include "process_auto_shift.h"
|
|
|
|
# ifndef AUTO_SHIFT_DISABLED_AT_STARTUP
|
|
# define AUTO_SHIFT_STARTUP_STATE true /* enabled */
|
|
# else
|
|
# define AUTO_SHIFT_STARTUP_STATE false /* disabled */
|
|
# endif
|
|
|
|
// Stores the last Auto Shift key's up or down time, for evaluation or keyrepeat.
|
|
static uint16_t autoshift_time = 0;
|
|
# if defined(RETRO_SHIFT) && !defined(NO_ACTION_TAPPING)
|
|
// Stores the last key's up or down time, to replace autoshift_time so that Tap Hold times are accurate.
|
|
static uint16_t retroshift_time = 0;
|
|
// Stores a possibly Retro Shift key's up or down time, as retroshift_time needs
|
|
// to be set before the Retro Shift key is evaluated if it is interrupted by an
|
|
// Auto Shifted key.
|
|
static uint16_t last_retroshift_time;
|
|
# endif
|
|
static uint16_t autoshift_timeout = AUTO_SHIFT_TIMEOUT;
|
|
static uint16_t autoshift_lastkey = KC_NO;
|
|
static keyrecord_t autoshift_lastrecord;
|
|
// Keys take 8 bits if modifiers are excluded. This records the shift state
|
|
// when pressed for each key, so that can be passed to the release function
|
|
// and it knows which key needs to be released (if shifted is different base).
|
|
static uint16_t autoshift_shift_states[((1 << 8) + 15) / 16];
|
|
static struct {
|
|
// Whether Auto Shift is enabled.
|
|
bool enabled : 1;
|
|
// Whether the last auto-shifted key was released after the timeout. This
|
|
// is used to replicate the last key for a tap-then-hold.
|
|
bool lastshifted : 1;
|
|
// Whether an auto-shiftable key has been pressed but not processed.
|
|
bool in_progress : 1;
|
|
// Whether the auto-shifted keypress has been registered.
|
|
bool holding_shift : 1;
|
|
// Whether the user is holding a shift and we removed it.
|
|
bool cancelling_lshift : 1;
|
|
bool cancelling_rshift : 1;
|
|
// clang-format wants to remove the true for some reason.
|
|
// clang-format off
|
|
} autoshift_flags = {AUTO_SHIFT_STARTUP_STATE, false, false, false, false, false};
|
|
// clang-format on
|
|
|
|
/** \brief Called on physical press, returns whether key should be added to Auto Shift */
|
|
__attribute__((weak)) bool get_custom_auto_shifted_key(uint16_t keycode, keyrecord_t *record) { return false; }
|
|
|
|
/** \brief Called on physical press, returns whether is Auto Shift key */
|
|
__attribute__((weak)) bool get_auto_shifted_key(uint16_t keycode, keyrecord_t *record) {
|
|
switch (keycode) {
|
|
# ifndef NO_AUTO_SHIFT_ALPHA
|
|
case AUTO_SHIFT_ALPHA:
|
|
# endif
|
|
# ifndef NO_AUTO_SHIFT_NUMERIC
|
|
case AUTO_SHIFT_NUMERIC:
|
|
# endif
|
|
# ifndef NO_AUTO_SHIFT_SPECIAL
|
|
case AUTO_SHIFT_SPECIAL:
|
|
# endif
|
|
return true;
|
|
}
|
|
return get_custom_auto_shifted_key(keycode, record);
|
|
}
|
|
|
|
/** \brief Called to check whether defines should apply if PER_KEY is set for it */
|
|
__attribute__((weak)) bool get_auto_shift_repeat(uint16_t keycode, keyrecord_t *record) { return true; }
|
|
__attribute__((weak)) bool get_auto_shift_no_auto_repeat(uint16_t keycode, keyrecord_t *record) { return true; }
|
|
|
|
/** \brief Called when an Auto Shift key needs to be pressed */
|
|
__attribute__((weak)) void autoshift_press_user(uint16_t keycode, bool shifted, keyrecord_t *record) {
|
|
if (shifted) {
|
|
add_weak_mods(MOD_BIT(KC_LSFT));
|
|
}
|
|
register_code16((IS_RETRO(keycode)) ? keycode & 0xFF : keycode);
|
|
}
|
|
|
|
/** \brief Called when an Auto Shift key needs to be released */
|
|
__attribute__((weak)) void autoshift_release_user(uint16_t keycode, bool shifted, keyrecord_t *record) { unregister_code16((IS_RETRO(keycode)) ? keycode & 0xFF : keycode); }
|
|
|
|
/** \brief Sets the shift state to use when keyrepeating, required by custom shifts */
|
|
void set_autoshift_shift_state(uint16_t keycode, bool shifted) {
|
|
keycode = keycode & 0xFF;
|
|
if (shifted) {
|
|
autoshift_shift_states[keycode / 16] |= (uint16_t)1 << keycode % 16;
|
|
} else {
|
|
autoshift_shift_states[keycode / 16] &= ~((uint16_t)1 << keycode % 16);
|
|
}
|
|
}
|
|
|
|
/** \brief Gets the shift state to use when keyrepeating, required by custom shifts */
|
|
bool get_autoshift_shift_state(uint16_t keycode) {
|
|
keycode = keycode & 0xFF;
|
|
return (autoshift_shift_states[keycode / 16] & (uint16_t)1 << keycode % 16) != (uint16_t)0;
|
|
}
|
|
|
|
/** \brief Restores the shift key if it was cancelled by Auto Shift */
|
|
static void autoshift_flush_shift(void) {
|
|
autoshift_flags.holding_shift = false;
|
|
del_weak_mods(MOD_BIT(KC_LSFT));
|
|
if (autoshift_flags.cancelling_lshift) {
|
|
autoshift_flags.cancelling_lshift = false;
|
|
add_mods(MOD_BIT(KC_LSFT));
|
|
}
|
|
if (autoshift_flags.cancelling_rshift) {
|
|
autoshift_flags.cancelling_rshift = false;
|
|
add_mods(MOD_BIT(KC_RSFT));
|
|
}
|
|
send_keyboard_report();
|
|
}
|
|
|
|
/** \brief Record the press of an autoshiftable key
|
|
*
|
|
* \return Whether the record should be further processed.
|
|
*/
|
|
static bool autoshift_press(uint16_t keycode, uint16_t now, keyrecord_t *record) {
|
|
// clang-format off
|
|
if ((get_mods()
|
|
# if !defined(NO_ACTION_ONESHOT) && !defined(NO_ACTION_TAPPING)
|
|
| get_oneshot_mods()
|
|
# endif
|
|
) & (~MOD_BIT(KC_LSFT))
|
|
) {
|
|
// clang-format on
|
|
// Prevents keyrepeating unshifted value of key after using it in a key combo.
|
|
autoshift_lastkey = KC_NO;
|
|
# ifndef AUTO_SHIFT_MODIFIERS
|
|
// We can't return true here anymore because custom unshifted values are
|
|
// possible and there's no good way to tell whether the press returned
|
|
// true upon release.
|
|
set_autoshift_shift_state(keycode, false);
|
|
autoshift_press_user(keycode, false, record);
|
|
# if !defined(NO_ACTION_ONESHOT) && !defined(NO_ACTION_TAPPING)
|
|
set_oneshot_mods(get_oneshot_mods() & (~MOD_BIT(KC_LSFT)));
|
|
clear_oneshot_layer_state(ONESHOT_OTHER_KEY_PRESSED);
|
|
# endif
|
|
return false;
|
|
# endif
|
|
}
|
|
|
|
// Store record to be sent to user functions if there's no release record then.
|
|
autoshift_lastrecord = *record;
|
|
autoshift_lastrecord.event.pressed = false;
|
|
autoshift_lastrecord.event.time = 0;
|
|
// clang-format off
|
|
# if defined(AUTO_SHIFT_REPEAT) || defined(AUTO_SHIFT_REPEAT_PER_KEY)
|
|
if (keycode == autoshift_lastkey &&
|
|
# ifdef AUTO_SHIFT_REPEAT_PER_KEY
|
|
get_auto_shift_repeat(autoshift_lastkey, record) &&
|
|
# endif
|
|
# if !defined(AUTO_SHIFT_NO_AUTO_REPEAT) || defined(AUTO_SHIFT_NO_AUTO_REPEAT_PER_KEY)
|
|
(
|
|
!autoshift_flags.lastshifted
|
|
# ifdef AUTO_SHIFT_NO_AUTO_REPEAT_PER_KEY
|
|
|| get_auto_shift_no_auto_repeat(autoshift_lastkey, record)
|
|
# endif
|
|
) &&
|
|
# endif
|
|
TIMER_DIFF_16(now, autoshift_time) <
|
|
# ifdef TAPPING_TERM_PER_KEY
|
|
get_tapping_term(autoshift_lastkey, record)
|
|
# else
|
|
TAPPING_TERM
|
|
# endif
|
|
) {
|
|
// clang-format on
|
|
// Allow a tap-then-hold for keyrepeat.
|
|
if (get_mods() & MOD_BIT(KC_LSFT)) {
|
|
autoshift_flags.cancelling_lshift = true;
|
|
del_mods(MOD_BIT(KC_LSFT));
|
|
}
|
|
if (get_mods() & MOD_BIT(KC_RSFT)) {
|
|
autoshift_flags.cancelling_rshift = true;
|
|
del_mods(MOD_BIT(KC_RSFT));
|
|
}
|
|
// autoshift_shift_state doesn't need to be changed.
|
|
autoshift_press_user(autoshift_lastkey, autoshift_flags.lastshifted, record);
|
|
return false;
|
|
}
|
|
# endif
|
|
|
|
// Use physical shift state of press event to be more like normal typing.
|
|
# if !defined(NO_ACTION_ONESHOT) && !defined(NO_ACTION_TAPPING)
|
|
autoshift_flags.lastshifted = (get_mods() | get_oneshot_mods()) & MOD_BIT(KC_LSFT);
|
|
set_oneshot_mods(get_oneshot_mods() & (~MOD_BIT(KC_LSFT)));
|
|
# else
|
|
autoshift_flags.lastshifted = get_mods() & MOD_BIT(KC_LSFT);
|
|
# endif
|
|
// Record the keycode so we can simulate it later.
|
|
autoshift_lastkey = keycode;
|
|
autoshift_time = now;
|
|
autoshift_flags.in_progress = true;
|
|
|
|
# if !defined(NO_ACTION_ONESHOT) && !defined(NO_ACTION_TAPPING)
|
|
clear_oneshot_layer_state(ONESHOT_OTHER_KEY_PRESSED);
|
|
# endif
|
|
return false;
|
|
}
|
|
|
|
/** \brief Registers an autoshiftable key under the right conditions
|
|
*
|
|
* If autoshift_timeout has elapsed, register a shift and the key.
|
|
*
|
|
* If the Auto Shift key is released before the delay has elapsed, register the
|
|
* key without a shift.
|
|
*
|
|
* Called on key down with keycode=KC_NO, auto-shifted key up, and timeout.
|
|
*/
|
|
static void autoshift_end(uint16_t keycode, uint16_t now, bool matrix_trigger, keyrecord_t *record) {
|
|
if (autoshift_flags.in_progress && (keycode == autoshift_lastkey || keycode == KC_NO)) {
|
|
// Process the auto-shiftable key.
|
|
autoshift_flags.in_progress = false;
|
|
// clang-format off
|
|
autoshift_flags.lastshifted =
|
|
autoshift_flags.lastshifted
|
|
|| TIMER_DIFF_16(now, autoshift_time) >=
|
|
# ifdef AUTO_SHIFT_TIMEOUT_PER_KEY
|
|
get_autoshift_timeout(autoshift_lastkey, record)
|
|
# else
|
|
autoshift_timeout
|
|
# endif
|
|
;
|
|
// clang-format on
|
|
set_autoshift_shift_state(autoshift_lastkey, autoshift_flags.lastshifted);
|
|
if (get_mods() & MOD_BIT(KC_LSFT)) {
|
|
autoshift_flags.cancelling_lshift = true;
|
|
del_mods(MOD_BIT(KC_LSFT));
|
|
}
|
|
if (get_mods() & MOD_BIT(KC_RSFT)) {
|
|
autoshift_flags.cancelling_rshift = true;
|
|
del_mods(MOD_BIT(KC_RSFT));
|
|
}
|
|
autoshift_press_user(autoshift_lastkey, autoshift_flags.lastshifted, record);
|
|
|
|
// clang-format off
|
|
# if (defined(AUTO_SHIFT_REPEAT) || defined(AUTO_SHIFT_REPEAT_PER_KEY)) && (!defined(AUTO_SHIFT_NO_AUTO_REPEAT) || defined(AUTO_SHIFT_NO_AUTO_REPEAT_PER_KEY))
|
|
if (matrix_trigger
|
|
# ifdef AUTO_SHIFT_REPEAT_PER_KEY
|
|
&& get_auto_shift_repeat(autoshift_lastkey, record)
|
|
# endif
|
|
# ifdef AUTO_SHIFT_NO_AUTO_REPEAT_PER_KEY
|
|
&& !get_auto_shift_no_auto_repeat(autoshift_lastkey, record)
|
|
# endif
|
|
) {
|
|
// Prevents release.
|
|
return;
|
|
}
|
|
# endif
|
|
// clang-format on
|
|
# if TAP_CODE_DELAY > 0
|
|
wait_ms(TAP_CODE_DELAY);
|
|
# endif
|
|
|
|
autoshift_release_user(autoshift_lastkey, autoshift_flags.lastshifted, record);
|
|
autoshift_flush_shift();
|
|
} else {
|
|
// Release after keyrepeat.
|
|
autoshift_release_user(keycode, get_autoshift_shift_state(keycode), record);
|
|
if (keycode == autoshift_lastkey) {
|
|
// This will only fire when the key was the last auto-shiftable
|
|
// pressed. That prevents 'aaaaBBBB' then releasing a from unshifting
|
|
// later 'B's (if 'B' wasn't auto-shiftable).
|
|
autoshift_flush_shift();
|
|
}
|
|
}
|
|
// Roll the autoshift_time forward for detecting tap-and-hold.
|
|
autoshift_time = now;
|
|
}
|
|
|
|
/** \brief Simulates auto-shifted key releases when timeout is hit
|
|
*
|
|
* Can be called from \c matrix_scan_user so that auto-shifted keys are sent
|
|
* immediately after the timeout has expired, rather than waiting for the key
|
|
* to be released.
|
|
*/
|
|
void autoshift_matrix_scan(void) {
|
|
if (autoshift_flags.in_progress) {
|
|
const uint16_t now = timer_read();
|
|
if (TIMER_DIFF_16(now, autoshift_time) >=
|
|
# ifdef AUTO_SHIFT_TIMEOUT_PER_KEY
|
|
get_autoshift_timeout(autoshift_lastkey, &autoshift_lastrecord)
|
|
# else
|
|
autoshift_timeout
|
|
# endif
|
|
) {
|
|
autoshift_end(autoshift_lastkey, now, true, &autoshift_lastrecord);
|
|
}
|
|
}
|
|
}
|
|
|
|
void autoshift_toggle(void) {
|
|
autoshift_flags.enabled = !autoshift_flags.enabled;
|
|
autoshift_flush_shift();
|
|
}
|
|
|
|
void autoshift_enable(void) { autoshift_flags.enabled = true; }
|
|
|
|
void autoshift_disable(void) {
|
|
autoshift_flags.enabled = false;
|
|
autoshift_flush_shift();
|
|
}
|
|
|
|
# ifndef AUTO_SHIFT_NO_SETUP
|
|
void autoshift_timer_report(void) {
|
|
char display[8];
|
|
|
|
snprintf(display, 8, "\n%d\n", autoshift_timeout);
|
|
|
|
send_string((const char *)display);
|
|
}
|
|
# endif
|
|
|
|
bool get_autoshift_state(void) { return autoshift_flags.enabled; }
|
|
|
|
uint16_t get_generic_autoshift_timeout() { return autoshift_timeout; }
|
|
__attribute__((weak)) uint16_t get_autoshift_timeout(uint16_t keycode, keyrecord_t *record) { return autoshift_timeout; }
|
|
|
|
void set_autoshift_timeout(uint16_t timeout) { autoshift_timeout = timeout; }
|
|
|
|
bool process_auto_shift(uint16_t keycode, keyrecord_t *record) {
|
|
// Note that record->event.time isn't reliable, see:
|
|
// https://github.com/qmk/qmk_firmware/pull/9826#issuecomment-733559550
|
|
// clang-format off
|
|
const uint16_t now =
|
|
# if !defined(RETRO_SHIFT) || defined(NO_ACTION_TAPPING)
|
|
timer_read()
|
|
# else
|
|
(record->event.pressed) ? retroshift_time : timer_read()
|
|
# endif
|
|
;
|
|
// clang-format on
|
|
|
|
if (record->event.pressed) {
|
|
if (autoshift_flags.in_progress) {
|
|
// Evaluate previous key if there is one.
|
|
autoshift_end(KC_NO, now, false, &autoshift_lastrecord);
|
|
}
|
|
|
|
switch (keycode) {
|
|
case KC_ASTG:
|
|
autoshift_toggle();
|
|
break;
|
|
case KC_ASON:
|
|
autoshift_enable();
|
|
break;
|
|
case KC_ASOFF:
|
|
autoshift_disable();
|
|
break;
|
|
|
|
# ifndef AUTO_SHIFT_NO_SETUP
|
|
case KC_ASUP:
|
|
autoshift_timeout += 5;
|
|
break;
|
|
case KC_ASDN:
|
|
autoshift_timeout -= 5;
|
|
break;
|
|
case KC_ASRP:
|
|
autoshift_timer_report();
|
|
break;
|
|
# endif
|
|
}
|
|
// If Retro Shift is disabled, possible custom actions shouldn't happen.
|
|
// clang-format off
|
|
if (IS_RETRO(keycode)
|
|
# if defined(RETRO_SHIFT) && !defined(NO_ACTION_TAPPING)
|
|
// Not tapped or #defines mean that rolls should use hold action.
|
|
&& (
|
|
record->tap.count == 0
|
|
# ifdef RETRO_TAPPING_PER_KEY
|
|
|| !get_retro_tapping(keycode, record)
|
|
# endif
|
|
|| (record->tap.interrupted && (IS_LT(keycode)
|
|
# if defined(HOLD_ON_OTHER_KEY_PRESS) || defined(HOLD_ON_OTHER_KEY_PRESS_PER_KEY)
|
|
# ifdef HOLD_ON_OTHER_KEY_PRESS_PER_KEY
|
|
? get_hold_on_other_key_press(keycode, record)
|
|
# else
|
|
? true
|
|
# endif
|
|
# else
|
|
? false
|
|
# endif
|
|
# if defined(IGNORE_MOD_TAP_INTERRUPT) || defined(IGNORE_MOD_TAP_INTERRUPT_PER_KEY)
|
|
# ifdef IGNORE_MOD_TAP_INTERRUPT_PER_KEY
|
|
: !get_ignore_mod_tap_interrupt(keycode, record)
|
|
# else
|
|
: false
|
|
# endif
|
|
# else
|
|
: true
|
|
# endif
|
|
))
|
|
)
|
|
# endif
|
|
) {
|
|
// clang-format on
|
|
autoshift_lastkey = KC_NO;
|
|
return true;
|
|
}
|
|
} else {
|
|
if (keycode == KC_LSFT) {
|
|
autoshift_flags.cancelling_lshift = false;
|
|
} else if (keycode == KC_RSFT) {
|
|
autoshift_flags.cancelling_rshift = false;
|
|
}
|
|
// Same as above (for pressed), additional checks are not needed because
|
|
// tap.count gets set to 0 in process_action
|
|
// clang-format off
|
|
else if (IS_RETRO(keycode)
|
|
# if defined(RETRO_SHIFT) && !defined(NO_ACTION_TAPPING)
|
|
&& (
|
|
record->tap.count == 0
|
|
# ifdef RETRO_TAPPING_PER_KEY
|
|
|| !get_retro_tapping(keycode, record)
|
|
# endif
|
|
)
|
|
# endif
|
|
) {
|
|
// Fixes modifiers not being applied to rolls with AUTO_SHIFT_MODIFIERS set.
|
|
# if !defined(IGNORE_MOD_TAP_INTERRUPT) || defined(IGNORE_MOD_TAP_INTERRUPT_PER_KEY)
|
|
if (autoshift_flags.in_progress
|
|
# ifdef IGNORE_MOD_TAP_INTERRUPT_PER_KEY
|
|
&& !get_ignore_mod_tap_interrupt(keycode, record)
|
|
# endif
|
|
) {
|
|
autoshift_end(KC_NO, now, false, &autoshift_lastrecord);
|
|
}
|
|
# endif
|
|
// clang-format on
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (!autoshift_flags.enabled) {
|
|
return true;
|
|
}
|
|
if (get_auto_shifted_key(keycode, record)) {
|
|
if (record->event.pressed) {
|
|
return autoshift_press(keycode, now, record);
|
|
} else {
|
|
autoshift_end(keycode, now, false, record);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Prevent keyrepeating of older keys upon non-AS key event.
|
|
// Not commented at above returns but they serve the same function.
|
|
if (record->event.pressed) {
|
|
autoshift_lastkey = KC_NO;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
# if defined(RETRO_SHIFT) && !defined(NO_ACTION_TAPPING)
|
|
// Called to record time before possible delays by action_tapping_process.
|
|
void retroshift_poll_time(keyevent_t *event) {
|
|
last_retroshift_time = retroshift_time;
|
|
retroshift_time = timer_read();
|
|
}
|
|
// Used to swap the times of Retro Shifted key and Auto Shift key that interrupted it.
|
|
void retroshift_swap_times() {
|
|
if (last_retroshift_time != 0 && autoshift_flags.in_progress) {
|
|
uint16_t temp = retroshift_time;
|
|
retroshift_time = last_retroshift_time;
|
|
last_retroshift_time = temp;
|
|
}
|
|
}
|
|
# endif
|
|
|
|
#endif
|