1 files changed, 69 insertions, 0 deletions
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)};
+