1 files changed, 72 insertions, 0 deletions

diff --git a/quantum/process_keycode/process_tap_dance.h b/quantum/process_keycode/process_tap_dance.h
new file mode 100644
index 000000000..f753cbba6
--- /dev/null
+++ b/quantum/process_keycode/process_tap_dance.h
@@ -0,0 +1,72 @@
+#ifndef PROCESS_TAP_DANCE_H
+#define PROCESS_TAP_DANCE_H
+
+#ifdef TAP_DANCE_ENABLE
+
+#include <stdbool.h>
+#include <inttypes.h>
+
+typedef struct
+{
+  uint8_t count;
+  uint16_t keycode;
+  uint16_t timer;
+  bool interrupted;
+  bool pressed;
+  bool finished;
+} qk_tap_dance_state_t;
+
+#define TD(n) (QK_TAP_DANCE + n)
+
+typedef void (*qk_tap_dance_user_fn_t) (qk_tap_dance_state_t *state, void *user_data);
+
+typedef struct
+{
+  struct {
+    qk_tap_dance_user_fn_t on_each_tap;
+    qk_tap_dance_user_fn_t on_dance_finished;
+    qk_tap_dance_user_fn_t on_reset;
+  } fn;
+  qk_tap_dance_state_t state;
+  void *user_data;
+} qk_tap_dance_action_t;
+
+typedef struct
+{
+  uint16_t kc1;
+  uint16_t kc2;
+} qk_tap_dance_pair_t;
+
+#define ACTION_TAP_DANCE_DOUBLE(kc1, kc2) { \
+    .fn = { NULL, qk_tap_dance_pair_finished, qk_tap_dance_pair_reset }, \
+    .user_data = (void *)&((qk_tap_dance_pair_t) { kc1, kc2 }),  \
+  }
+
+#define ACTION_TAP_DANCE_FN(user_fn) {  \
+    .fn = { NULL, user_fn, NULL }, \
+    .user_data = NULL, \
+  }
+
+#define ACTION_TAP_DANCE_FN_ADVANCED(user_fn_on_each_tap, user_fn_on_dance_finished, user_fn_on_dance_reset) { \
+    .fn = { user_fn_on_each_tap, user_fn_on_dance_finished, user_fn_on_dance_reset }, \
+    .user_data = NULL, \
+  }
+
+extern qk_tap_dance_action_t tap_dance_actions[];
+
+/* To be used internally */
+
+bool process_tap_dance(uint16_t keycode, keyrecord_t *record);
+void matrix_scan_tap_dance (void);
+void reset_tap_dance (qk_tap_dance_state_t *state);
+
+void qk_tap_dance_pair_finished (qk_tap_dance_state_t *state, void *user_data);
+void qk_tap_dance_pair_reset (qk_tap_dance_state_t *state, void *user_data);
+
+#else
+
+#define TD(n) KC_NO
+
+#endif
+
+#endif