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+/* Copyright 2020 Stephen J. Bush
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+#ifdef TAP_DANCE_ENABLE
+# include QMK_KEYBOARD_H
+
+/*
+ * TAP DANCE
+ * https://docs.qmk.fm/#/feature_tap_dance
+ */
+
+// Define a type for as many tap dance states as you need
+typedef enum {
+ TD_NONE = 0,
+ TD_UNKNOWN,
+ TD_1X_TAP,
+ TD_1X_HOLD,
+ TD_2X_TAP,
+ TD_3X_TAP,
+ TD_4X_TAP,
+} td_state_t;
+
+// Our custom tap dance key; add any other tap dance keys to this enum
+enum {
+ TD_LAYERS = 0, // NOTE: Start at 0 as this is also an array index
+};
+# define TD_LAYR TD(TD_LAYERS)
+
+typedef struct {
+ bool is_press_action;
+ td_state_t state;
+} td_tap_t;
+
+// Declare the functions to be used with your tap dance key(s)
+
+/* @brief Determine the current tap dance state
+ * @param A tap dance state struct.
+ * @return A struct.
+ */
+td_state_t cur_dance(qk_tap_dance_state_t *state);
+
+// Functions associated with individual tap dances
+
+/* @brief Associate tap actions with layers.
+ *
+ * NOTE: Weak attribute. Can (and should) be defined in keymap.c
+ *
+ * @param state Pointer to a tap dance state object.
+ * @param user_data Pointer to user data.
+ * @return None.
+ */
+void td_layer_finished(qk_tap_dance_state_t *state, void *user_data);
+
+/* @brief Reset tap dance actions.
+ *
+ * NOTE: Weak attribute. Can (and should) be defined in keymap.c
+ *
+ * @param state Pointer to a tap dance state object.
+ * @param user_data Pointer to user data.
+ * @return None.
+ */
+void td_layer_reset(qk_tap_dance_state_t *state, void *user_data);
+
+/* Define tap dance actions.
+ */
+__attribute__((weak))
+qk_tap_dance_action_t tap_dance_actions[1] = {[TD_LAYERS] = ACTION_TAP_DANCE_FN_ADVANCED_TIME(NULL, td_layer_finished, td_layer_reset, 275)};
+#endif