From 40183b3cfa7fa2f487e1bfb828ddeecfc76c25e7 Mon Sep 17 00:00:00 2001
From: Gustaf Rydholm <gustaf.rydholm@gmail.com>
Date: Sun, 10 Mar 2024 00:47:43 +0100
Subject: Add sfrp to fix right parenthesis bug

---
 aktersnurra/charybdis/keymap.c |  4 +--
 aktersnurra/ferris/keymap.c    |  3 +-
 aktersnurra/sftrp.c            | 69 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 73 insertions(+), 3 deletions(-)
 create mode 100644 aktersnurra/sftrp.c

diff --git a/aktersnurra/charybdis/keymap.c b/aktersnurra/charybdis/keymap.c
index 3bec92f..15316d9 100644
--- a/aktersnurra/charybdis/keymap.c
+++ b/aktersnurra/charybdis/keymap.c
@@ -2,6 +2,7 @@
 // This is the canonical layout file for the Quantum project. If you want to add another keyboard,
 
 #include QMK_KEYBOARD_H
+#include "../sftrp.c"
 
 // Each layer gets a name for readability, which is then used in the keymap matrix below.
 // The underscores don't mean anything - you can have a layer called STUFF or any other name.
@@ -19,7 +20,6 @@
 #define KC_HN SFT_T(KC_N)
 
 #define KC_SLBRC SFT_T(KC_LBRC)
-#define KC_SRPRN SFT_T(KC_RPRN)
 
 #define KC_ALT_CTL LALT(KC_LCTL)
 
@@ -40,7 +40,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
   [_SYM] = LAYOUT( /* [> Symbol layer <] */
     KC_TRNS, KC_EXLM, KC_PERC, KC_DLR,   KC_AT,         KC_GRV,  KC_ASTR,  KC_CIRC, KC_TRNS, KC_TRNS,
-    KC_AMPR, KC_HASH, KC_LPRN, KC_SRPRN, KC_MINS,       KC_EQL,  KC_SLBRC, KC_RBRC, KC_QUOT, KC_PIPE,
+    KC_AMPR, KC_HASH, KC_LPRN, TD(SFT_RP), KC_MINS,     KC_EQL,  KC_SLBRC, KC_RBRC, KC_QUOT, KC_PIPE,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  KC_TRNS,       KC_TRNS, KC_TRNS,  KC_TRNS, KC_TRNS, KC_BSLS,
                       KC_TRNS, KC_SPC,   KC_TRNS,       KC_TRNS, KC_TRNS
   ),
diff --git a/aktersnurra/ferris/keymap.c b/aktersnurra/ferris/keymap.c
index c7838e9..021b232 100644
--- a/aktersnurra/ferris/keymap.c
+++ b/aktersnurra/ferris/keymap.c
@@ -1,4 +1,5 @@
 #include QMK_KEYBOARD_H
+#include "../sftrp.c"
 
 #define KC_HA GUI_T(KC_A)
 #define KC_HR ALT_T(KC_R)
@@ -37,7 +38,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
   [_SYM] = LAYOUT( /* [> Symbol layer <] */
     KC_TRNS, KC_EXLM, KC_PERC, KC_DLR,   KC_AT,         KC_GRV,  KC_ASTR,  KC_CIRC, KC_TRNS, KC_TRNS,
-    KC_AMPR, KC_HASH, KC_LPRN, KC_SRPRN, KC_MINS,       KC_EQL,  KC_SLBRC, KC_RBRC, KC_QUOT, KC_PIPE,
+    KC_AMPR, KC_HASH, KC_LPRN, TD(SFT_RP), KC_MINS,     KC_EQL,  KC_SLBRC, KC_RBRC, KC_QUOT, KC_PIPE,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  KC_TRNS,       KC_TRNS, KC_TRNS,  KC_TRNS, KC_TRNS, KC_BSLS,
                                KC_TRNS,  KC_SPC,        KC_TRNS, KC_TRNS
   ),
diff --git a/aktersnurra/sftrp.c b/aktersnurra/sftrp.c
new file mode 100644
index 0000000..b80f6c7
--- /dev/null
+++ b/aktersnurra/sftrp.c
@@ -0,0 +1,69 @@
+enum td_keycodes {
+  SFT_RP // `LSFT` when held, `(` when tapped.
+};
+
+typedef enum {
+  TD_NONE,
+  TD_UNKNOWN,
+  TD_SINGLE_TAP,
+  TD_SINGLE_HOLD,
+  TD_DOUBLE_SINGLE_TAP
+} td_state_t;
+
+static td_state_t td_state;
+
+td_state_t cur_dance(tap_dance_state_t *state) {
+  if (state->count == 1) {
+    if (state->interrupted || !state->pressed)
+      return TD_SINGLE_TAP;
+    else
+      return TD_SINGLE_HOLD;
+  }
+
+  if (state->count == 2)
+    return TD_DOUBLE_SINGLE_TAP;
+  else
+    return TD_UNKNOWN; // Any number higher than the maximum state value you
+                       // return above
+}
+
+void sftrp_finished(tap_dance_state_t *state, void *user_data) {
+  td_state = cur_dance(state);
+  switch (td_state) {
+  case TD_SINGLE_TAP:
+    register_code16(KC_RPRN);
+    break;
+  case TD_SINGLE_HOLD:
+    register_mods(MOD_BIT(
+        KC_LSFT)); // For a layer-tap key, use `layer_on(_MY_LAYER)` here
+    break;
+  case TD_DOUBLE_SINGLE_TAP: // Allow nesting of 2 parens `))` within tapping
+                             // term
+    tap_code16(KC_RPRN);
+    register_code16(KC_RPRN);
+    break;
+  default:
+    break;
+  }
+}
+
+void sftrp_reset(tap_dance_state_t *state, void *user_data) {
+  switch (td_state) {
+  case TD_SINGLE_TAP:
+    unregister_code16(KC_RPRN);
+    break;
+  case TD_SINGLE_HOLD:
+    unregister_mods(MOD_BIT(
+        KC_LSFT)); // For a layer-tap key, use `layer_off(_MY_LAYER)` here
+    break;
+  case TD_DOUBLE_SINGLE_TAP:
+    unregister_code16(KC_RPRN);
+    break;
+  default:
+    break;
+  }
+}
+
+tap_dance_action_t tap_dance_actions[] = {
+    [SFT_RP] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, sftrp_finished, sftrp_reset)};
+
-- 
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