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Adds oneshot layer and oneshot tap toggling (#308)

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This commit is mostly a cherry-pick from `ahtn` at
https://github.com/tmk/tmk_keyboard/pull/255.

These are the changes:

* Adds ACTION_LAYER_ONESHOT
* Adds ONESHOT_TAP_TOGGLE
* Mentions sticky keys in the docs on oneshot.
This commit is contained in:
Thiago Alves 2016-05-05 18:41:37 -07:00 • committed by Jack Humbert
parent d4520cd3ac
commit 74e97eefd7
5 changed files with 186 additions and 14 deletions
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97
tmk_core/common/action.c
View file

@ -74,6 +74,7 @@ void process_action_kb(keyrecord_t *record) {}
void process_action(keyrecord_t *record)
{
bool do_release_oneshot = false;
keyevent_t event = record->event;
#ifndef NO_ACTION_TAPPING
uint8_t tap_count = record->tap.count;
@ -81,6 +82,13 @@ void process_action(keyrecord_t *record)
if (IS_NOEVENT(event)) { return; }
#if (defined(ONESHOT_TIMEOUT) && (ONESHOT_TIMEOUT > 0))
if (has_oneshot_layer_timed_out()) {
dprintf("Oneshot layer: timeout\n");
clear_oneshot_layer_state(ONESHOT_OTHER_KEY_PRESSED);
}
#endif
process_action_kb(record);
action_t action = store_or_get_action(event.pressed, event.key);
@ -95,6 +103,15 @@ void process_action(keyrecord_t *record)
// clear the potential weak mods left by previously pressed keys
clear_weak_mods();
}
#ifndef NO_ACTION_ONESHOT
// notice we only clear the one shot layer if the pressed key is not a modifier.
if (is_oneshot_layer_active() && event.pressed && !IS_MOD(action.key.code)) {
clear_oneshot_layer_state(ONESHOT_OTHER_KEY_PRESSED);
do_release_oneshot = !is_oneshot_layer_active();
}
#endif
switch (action.kind.id) {
/* Key and Mods */
case ACT_LMODS:
@ -139,24 +156,37 @@ void process_action(keyrecord_t *record)
// Oneshot modifier
if (event.pressed) {
if (tap_count == 0) {
dprint("MODS_TAP: Oneshot: 0\n");
register_mods(mods);
}
else if (tap_count == 1) {
} else if (tap_count == 1) {
dprint("MODS_TAP: Oneshot: start\n");
set_oneshot_mods(mods);
}
else {
#if defined(ONESHOT_TAP_TOGGLE) && ONESHOT_TAP_TOGGLE > 1
} else if (tap_count == ONESHOT_TAP_TOGGLE) {
dprint("MODS_TAP: Toggling oneshot");
clear_oneshot_mods();
set_oneshot_locked_mods(mods);
register_mods(mods);
#endif
} else {
register_mods(mods);
}
} else {
if (tap_count == 0) {
clear_oneshot_mods();
unregister_mods(mods);
}
else if (tap_count == 1) {
} else if (tap_count == 1) {
// Retain Oneshot mods
}
else {
#if defined(ONESHOT_TAP_TOGGLE) && ONESHOT_TAP_TOGGLE > 1
if (mods & get_mods()) {
clear_oneshot_locked_mods();
clear_oneshot_mods();
unregister_mods(mods);
}
} else if (tap_count == ONESHOT_TAP_TOGGLE) {
// Toggle Oneshot Layer
#endif
} else {
clear_oneshot_mods();
unregister_mods(mods);
}
@ -309,6 +339,44 @@ void process_action(keyrecord_t *record)
event.pressed ? layer_move(action.layer_tap.val) :
layer_clear();
break;
#ifndef NO_ACTION_ONESHOT
case OP_ONESHOT:
// Oneshot modifier
#if defined(ONESHOT_TAP_TOGGLE) && ONESHOT_TAP_TOGGLE > 1
do_release_oneshot = false;
if (event.pressed) {
del_mods(get_oneshot_locked_mods());
if (get_oneshot_layer_state() == ONESHOT_TOGGLED) {
reset_oneshot_layer();
layer_off(action.layer_tap.val);
break;
} else if (tap_count < ONESHOT_TAP_TOGGLE) {
layer_on(action.layer_tap.val);
set_oneshot_layer(action.layer_tap.val, ONESHOT_START);
}
} else {
add_mods(get_oneshot_locked_mods());
if (tap_count >= ONESHOT_TAP_TOGGLE) {
reset_oneshot_layer();
clear_oneshot_locked_mods();
set_oneshot_layer(action.layer_tap.val, ONESHOT_TOGGLED);
} else {
clear_oneshot_layer_state(ONESHOT_PRESSED);
}
}
#else
if (event.pressed) {
layer_on(action.layer_tap.val);
set_oneshot_layer(action.layer_tap.val, ONESHOT_START);
} else {
clear_oneshot_layer_state(ONESHOT_PRESSED);
if (tap_count > 1) {
clear_oneshot_layer_state(ONESHOT_OTHER_KEY_PRESSED);
}
}
#endif
break;
#endif
default:
/* tap key */
if (event.pressed) {
@ -372,6 +440,18 @@ void process_action(keyrecord_t *record)
default:
break;
}
#ifndef NO_ACTION_ONESHOT
/* Because we switch layers after a oneshot event, we need to release the
* key before we leave the layer or no key up event will be generated.
*/
if (do_release_oneshot && !(get_oneshot_layer_state() & ONESHOT_PRESSED ) ) {
record->event.pressed = false;
layer_on(get_oneshot_layer());
process_action(record);
layer_off(get_oneshot_layer());
}
#endif
}
@ -560,6 +640,7 @@ bool is_tap_key(keypos_t key)
switch (action.layer_tap.code) {
case 0x00 ... 0xdf:
case OP_TAP_TOGGLE:
case OP_ONESHOT:
return true;
}
return false;