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544ddde113
* Chordal Hold: restrict what chords settle as hold * Chordal Hold: docs and further improvements * Fix formatting. * Doc rewording and minor edit. * Support Chordal Hold of multiple tap-hold keys. * Fix formatting. * Simplification and additional test. * Fix formatting. * Tighten tests. * Add test two_mod_taps_same_hand_hold_til_timeout. * Revise handing of pairs of tap-hold keys. * Generate a default chordal_hold_layout. * Document chordal_hold_handedness(). * Add license notice to new and branched files in PR. * Add `tapping.chordal_hold` property for info.json. * Update docs/reference_info_json.md * Revise "hand" jsonschema. * Chordal Hold: Improved layout handedness heuristic. This commit improves the heuristic used in generate-keyboard-c for inferring key handedness from keyboard.json geometry data. Heuristic summary: 1. If the layout is symmetric (e.g. most split keyboards), guess the handedness based on the sign of (x - layout_x_midpoint). 2. Otherwise, if the layout has a key of >=6u width, it is probably the spacebar. Form a dividing line through the spacebar, nearly vertical but with a slight angle to follow typical row stagger. 3. Otherwise, assume handedness based on the widest horizontal separation. I have tested this strategy on a couple dozen keyboards and found it to work reliably. * Use Optional instead of `| None`. * Refactor to avoid lambdas. * Remove trailing comma in chordal_hold_layout. * Minor docs edits. * Revise to allow combining multiple same-hand mods. This commit revises Chordal Hold as described in discussion in https://github.com/qmk/qmk_firmware/pull/24560#discussion_r1894655238 1. In "RCTL_T(KC_A)↓, RSFT_T(KC_C)↓, RCTL_T(KC_A)↑" before the tapping term, RCTL_T(KC_A) is settled as tapped. 2. In "RCTL_T(KC_A)↓, RSFT_T(KC_C)↓, RSFT_T(KC_C)↑", both RCTL_T(KC_A) and RSFT_T(KC_C) are settled as tapped. 3. In "RCTL_T(KC_A)↓, RSFT_T(KC_C)↓, KC_U↓" (all keys on the same side), both RCTL_T(KC_A) and RSFT_T(KC_C) are settled as tapped. 4. In "RCTL_T(KC_A)↓, RSFT_T(KC_C)↓, LSFT_T(KC_T)↓", with the third key on the other side, we allow Permissive Hold or Hold On Other Keypress to decide how/when to settle the keys. 5. In "RCTL_T(KC_A)↓, RSFT_T(KC_C)↓" held until the tapping term, the keys are settled as held. 1–3 provide same-hand roll protection. 4–5 are for combining multiple same-hand modifiers. I've updated the unit tests and have been running it on my keyboard, for a few hours so far, and all seems good. I really like this scheme. It allows combining same-side mods, yet it also has roll protection on streaks. For me, this feels like Achordion, but clearly better streak handling and improved responsiveness. * Fix formatting. * Add a couple tests with LT keys. * Remove stale use of CHORDAL_HOLD_LAYOUT. * Fix misspelling lastest -> latest * Handling tweak for LTs and tests. * Fix formatting. * More tests with LT keys. * Fix formatting.
131 lines
4.8 KiB
C
131 lines
4.8 KiB
C
/*
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Copyright 2013 Jun Wako <wakojun@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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/* period of tapping(ms) */
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#ifndef TAPPING_TERM
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# define TAPPING_TERM 200
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#endif
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/* period of quick tap(ms) */
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#if !defined(QUICK_TAP_TERM) || QUICK_TAP_TERM > TAPPING_TERM
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# define QUICK_TAP_TERM TAPPING_TERM
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#endif
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/* tap count needed for toggling a feature */
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#ifndef TAPPING_TOGGLE
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# define TAPPING_TOGGLE 5
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#endif
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#define WAITING_BUFFER_SIZE 8
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#ifndef NO_ACTION_TAPPING
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uint16_t get_record_keycode(keyrecord_t *record, bool update_layer_cache);
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uint16_t get_event_keycode(keyevent_t event, bool update_layer_cache);
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void action_tapping_process(keyrecord_t record);
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#endif
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uint16_t get_tapping_term(uint16_t keycode, keyrecord_t *record);
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uint16_t get_quick_tap_term(uint16_t keycode, keyrecord_t *record);
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bool get_permissive_hold(uint16_t keycode, keyrecord_t *record);
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bool get_retro_tapping(uint16_t keycode, keyrecord_t *record);
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bool get_hold_on_other_key_press(uint16_t keycode, keyrecord_t *record);
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#ifdef CHORDAL_HOLD
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/**
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* Callback to say when a key chord before the tapping term may be held.
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*
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* In keymap.c, define the callback
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*
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* bool get_chordal_hold(uint16_t tap_hold_keycode,
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* keyrecord_t* tap_hold_record,
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* uint16_t other_keycode,
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* keyrecord_t* other_record) {
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* // Conditions...
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* }
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*
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* This callback is called when:
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*
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* 1. `tap_hold_keycode` is pressed.
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* 2. `other_keycode` is pressed while `tap_hold_keycode` is still held,
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* provided `other_keycode` is *not* also a tap-hold key and it is pressed
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* before the tapping term.
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*
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* If false is returned, this has the effect of immediately settling the
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* tap-hold key as tapped. If true is returned, the tap-hold key is still
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* unsettled, and may be settled as held depending on configuration and
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* subsequent events.
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*
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* @param tap_hold_keycode Keycode of the tap-hold key.
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* @param tap_hold_record Record from the tap-hold press event.
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* @param other_keycode Keycode of the other key.
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* @param other_record Record from the other key's press event.
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* @return True if the tap-hold key may be considered held; false if tapped.
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*/
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bool get_chordal_hold(uint16_t tap_hold_keycode, keyrecord_t *tap_hold_record, uint16_t other_keycode, keyrecord_t *other_record);
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/**
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* Default "opposite hands rule" for whether a key chord may settle as held.
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*
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* This function returns true when the tap-hold key and other key are on
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* "opposite hands." In detail, handedness of the two keys are compared. If
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* handedness values differ, or if either handedness is '*', the function
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* returns true, indicating that it may be held. Otherwise, it returns false,
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* in which case the tap-hold key is immediately settled at tapped.
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*
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* @param tap_hold_record Record of the active tap-hold key press.
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* @param other_record Record of the other, interrupting key press.
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* @return True if the tap-hold key may be considered held; false if tapped.
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*/
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bool get_chordal_hold_default(keyrecord_t *tap_hold_record, keyrecord_t *other_record);
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/**
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* Gets the handedness of a key.
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*
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* This function returns:
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* 'L' for keys pressed by the left hand,
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* 'R' for keys on the right hand,
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* '*' for keys exempt from the "opposite hands rule." This could be used
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* perhaps on thumb keys or keys that might be pressed by either hand.
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*
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* @param key A key matrix position.
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* @return Handedness value.
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*/
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char chordal_hold_handedness(keypos_t key);
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extern const char chordal_hold_layout[MATRIX_ROWS][MATRIX_COLS] PROGMEM;
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#endif
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#ifdef DYNAMIC_TAPPING_TERM_ENABLE
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extern uint16_t g_tapping_term;
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#endif
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#if defined(TAPPING_TERM_PER_KEY) && !defined(NO_ACTION_TAPPING)
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# define GET_TAPPING_TERM(keycode, record) get_tapping_term(keycode, record)
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#elif defined(DYNAMIC_TAPPING_TERM_ENABLE) && !defined(NO_ACTION_TAPPING)
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# define GET_TAPPING_TERM(keycode, record) g_tapping_term
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#else
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# define GET_TAPPING_TERM(keycode, record) (TAPPING_TERM)
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#endif
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#ifdef QUICK_TAP_TERM_PER_KEY
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# define GET_QUICK_TAP_TERM(keycode, record) get_quick_tap_term(keycode, record)
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#else
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# define GET_QUICK_TAP_TERM(keycode, record) (QUICK_TAP_TERM)
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#endif
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