From c94a57d613a7420453f3377b8de32bbadf4ed5f3 Mon Sep 17 00:00:00 2001
From: Ilya Zhuravlev <whatever@xyz.is>
Date: Sat, 21 Jun 2025 19:46:37 -0600
Subject: [PATCH] qmk_settings: add flow tap

---
 builddefs/build_vial.mk | 2 +-
 quantum/qmk_settings.c  | 9 +++++++++
 quantum/qmk_settings.h  | 3 ++-
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/builddefs/build_vial.mk b/builddefs/build_vial.mk
index f80443f919..1002e93b5d 100644
--- a/builddefs/build_vial.mk
+++ b/builddefs/build_vial.mk
@@ -26,7 +26,7 @@ ifeq ($(strip $(QMK_SETTINGS)), yes)
     OPT_DEFS += -DQMK_SETTINGS \
         -DAUTO_SHIFT_NO_SETUP -DAUTO_SHIFT_REPEAT_PER_KEY -DAUTO_SHIFT_NO_AUTO_REPEAT_PER_KEY \
         -DPERMISSIVE_HOLD_PER_KEY -DHOLD_ON_OTHER_KEY_PRESS_PER_KEY -DQUICK_TAP_TERM_PER_KEY -DRETRO_TAPPING_PER_KEY \
-        -DCOMBO_TERM_PER_COMBO -DCHORDAL_HOLD
+        -DCOMBO_TERM_PER_COMBO -DCHORDAL_HOLD -DFLOW_TAP_TERM=321
 endif
 
 # Generate Vial layout definition header from JSON
diff --git a/quantum/qmk_settings.c b/quantum/qmk_settings.c
index 32c71f0e62..e5312d0fdb 100644
--- a/quantum/qmk_settings.c
+++ b/quantum/qmk_settings.c
@@ -71,6 +71,7 @@ static const qmk_settings_proto_t protos[] PROGMEM = {
    DECLARE_STATIC_BITSETTING(24, tapping_v2, QS_tapping_retro_tapping_bit),
    DECLARE_STATIC_SETTING(25, quick_tap_term),
    DECLARE_STATIC_BITSETTING(26, tapping_v2, QS_tapping_chordal_hold_bit),
+   DECLARE_STATIC_SETTING(27, flow_tap_term),
 };
 
 static void eeprom_settings_load(void) {
@@ -212,6 +213,7 @@ void qmk_settings_reset(void) {
     QS.tap_code_delay = TAP_CODE_DELAY;
     QS.tap_hold_caps_delay = TAP_HOLD_CAPS_DELAY;
     QS.tapping_toggle = TAPPING_TOGGLE;
+    QS.flow_tap_term = 0;
 
     eeprom_settings_save();
 
@@ -336,3 +338,10 @@ bool get_chordal_hold(uint16_t tap_hold_keycode, keyrecord_t* tap_hold_record,
         return get_chordal_hold_default(tap_hold_record, other_record);
     return true;
 }
+
+uint16_t get_flow_tap_term(uint16_t keycode, keyrecord_t *record, uint16_t prev_keycode) {
+    if (is_flow_tap_key(keycode) && is_flow_tap_key(prev_keycode)) {
+        return QS.flow_tap_term;
+    }
+    return 0;
+}
diff --git a/quantum/qmk_settings.h b/quantum/qmk_settings.h
index 08ebec30d8..f4a9674ab4 100644
--- a/quantum/qmk_settings.h
+++ b/quantum/qmk_settings.h
@@ -124,8 +124,9 @@ typedef struct {
     uint8_t tapping_toggle;
     uint8_t unused;
     uint16_t quick_tap_term;
+    uint16_t flow_tap_term;
 } qmk_settings_t;
-_Static_assert(sizeof(qmk_settings_t) == 38, "unexpected size of the qmk_settings_t structure");
+_Static_assert(sizeof(qmk_settings_t) == 40, "unexpected size of the qmk_settings_t structure");
 
 struct qmk_settings_proto_t;