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+/* Return an integer that corresponds to what kind of tap dance should be executed.
+ *
+ * How to figure out tap dance state: interrupted and pressed.
+ *
+ * Interrupted: If the state of a dance is "interrupted", that means that another key has been hit
+ * under the tapping term. This is typically indicitive that you are trying to "tap" the key.
+ *
+ * Pressed: Whether or not the key is still being pressed. If this value is true, that means the tapping term
+ * has ended, but the key is still being pressed down. This generally means the key is being "held".
+ *
+ * One thing that is currenlty not possible with qmk software in regards to tap dance is to mimic the "permissive hold"
+ * feature. In general, advanced tap dances do not work well if they are used with commonly typed letters.
+ * For example "A". Tap dances are best used on non-letter keys that are not hit while typing letters.
+ *
+ * Good places to put an advanced tap dance:
+ * z,q,x,j,k,v,b, any function key, home/end, comma, semi-colon
+ *
+ * Criteria for "good placement" of a tap dance key:
+ * Not a key that is hit frequently in a sentence
+ * Not a key that is used frequently to double tap, for example 'tab' is often double tapped in a terminal, or
+ * in a web form. So 'tab' would be a poor choice for a tap dance.
+ * Letters used in common words as a double. For example 'p' in 'pepper'. If a tap dance function existed on the
+ * letter 'p', the word 'pepper' would be quite frustating to type.
+ *
+ * For the third point, there does exist the 'TD_DOUBLE_SINGLE_TAP', however this is not fully tested
+ *
+ */
+
+#include QMK_KEYBOARD_H
+#include "keymap_bepo.h"
+#include "quad_tapdance.h"
+#include "keycodes.h"
+
+td_state_t cur_dance(tap_dance_state_t *state) {
+ if (state->count == 1) {
+ if (!state->pressed) return TD_SINGLE_TAP;
+ // Key has not been interrupted, but the key is still held. Means you want to send a 'HOLD'.
+ else return TD_SINGLE_HOLD;
+ } else if (state->count == 2) {
+ // TD_DOUBLE_SINGLE_TAP is to distinguish between typing "pepper", and actually wanting a double tap
+ // action when hitting 'pp'. Suggested use case for this return value is when you want to send two
+ // keystrokes of the key, and not the 'double tap' action/macro.
+ if (state->interrupted) return TD_DOUBLE_SINGLE_TAP;
+ else if (state->pressed) return TD_DOUBLE_HOLD;
+ else return TD_DOUBLE_TAP;
+ }
+
+ // Assumes no one is trying to type the same letter three times (at least not quickly).
+ // If your tap dance key is 'KC_W', and you want to type "www." quickly - then you will need to add
+ // an exception here to return a 'TD_TRIPLE_SINGLE_TAP', and define that enum just like 'TD_DOUBLE_SINGLE_TAP'
+ if (state->count == 3) {
+ if (state->interrupted || !state->pressed) return TD_TRIPLE_TAP;
+ else return TD_TRIPLE_HOLD;
+ } else return TD_UNKNOWN;
+}
+
+//
+// Definition for the key W.
+//
+// The main usage is to send the letter W when pressed, but the key is also
+// used to activate the SHIFT mode when pressed.
+//
+// If the key is double tapped, it will also switch into the caps_word mode.
+//
+
+static td_tap_t w_tap_state = {
+ .is_press_action = true,
+ .state = TD_NONE
+};
+
+void w_finished(tap_dance_state_t *state, void *user_data) {
+ w_tap_state.state = cur_dance(state);
+ switch (w_tap_state.state) {
+ case TD_SINGLE_TAP: register_code(BP_W); break;
+ case TD_SINGLE_HOLD: register_code(KC_RIGHT_SHIFT); break;
+ case TD_DOUBLE_TAP: caps_word_on(); break;
+ case TD_DOUBLE_SINGLE_TAP: tap_code(BP_W); register_code(BP_W); break;
+ default: break;
+ }
+}
+
+void w_reset(tap_dance_state_t *state, void *user_data) {
+ switch (w_tap_state.state) {
+ case TD_SINGLE_TAP: unregister_code(BP_W); break;
+ case TD_SINGLE_HOLD: unregister_code(KC_RIGHT_SHIFT); break;
+ case TD_DOUBLE_SINGLE_TAP: unregister_code(BP_W); break;
+ default: break;
+ }
+ w_tap_state.state = TD_NONE;
+}
+
+//
+// Definition for the layer key
+//
+// The only one usage is to activate the layer over the keyboard, but there is
+// two way of doing it:
+//
+// The first mode, when hold, is to activate the layer as long as the key is pressed.
+// The second one is to switch in the layer mode when double tapped, in this
+// mode, you can go back into the normal layer by a single press on the key.
+//
+static td_tap_t ql_tap_state = {
+ .is_press_action = true,
+ .state = TD_NONE
+};
+
+// Functions that control what our tap dance key does
+void ql_finished(tap_dance_state_t *state, void *user_data) {
+ ql_tap_state.state = cur_dance(state);
+ switch (ql_tap_state.state) {
+ // Remove the layer with a single tap, this way I always have a key to remove the
+ // the layer, without knowing the previous state I had.
+ case TD_SINGLE_TAP: layer_off(LAYER_SYMBOLS); break;
+ case TD_SINGLE_HOLD: layer_on(LAYER_SYMBOLS); break;
+ case TD_DOUBLE_TAP: layer_invert(LAYER_SYMBOLS); break;
+ default: break;
+ }
+}
+
+void ql_reset(tap_dance_state_t *state, void *user_data) {
+ // If the key was held down and now is released then switch off the layer
+ if (ql_tap_state.state == TD_SINGLE_HOLD) {
+ layer_off(LAYER_SYMBOLS);
+ }
+ ql_tap_state.state = TD_NONE;
+}
+
+//
+// Definiton for the key DEL.
+// The main usage of the key is to activate the LShift when hold. But the key
+// can also be used to send the DEL keycode.
+//
+// As I do not want to send the DEL keycode by mistake, I’ve configured the key
+// to do it on double-tap. If you hold the key after a double tap, the DELETE
+// code will be repeated again until the key is released.
+//
+// On a single press, the key will just remove the CAPSLOCK state if active.
+//
+static td_tap_t lshift_tap_state = {
+ .is_press_action = true,
+ .state = TD_NONE
+};
+
+// Functions that control what our tap dance key does
+void lshift_finished(tap_dance_state_t *state, void *user_data) {
+ lshift_tap_state.state = cur_dance(state);
+ switch (lshift_tap_state.state) {
+ // Remove the layer with a single tap, this way I always have a key to remove the
+ // the layer, without knowing the previous state I had.
+ case TD_SINGLE_HOLD: register_code(KC_LEFT_SHIFT); break;
+ case TD_DOUBLE_TAP:
+ case TD_DOUBLE_HOLD:
+ register_code(KC_DELETE); break;
+ case TD_SINGLE_TAP:
+ if (host_keyboard_led_state().caps_lock)
+ register_code(KC_CAPS_LOCK);
+ break;
+ default: break;
+ }
+}
+
+void lshift_reset(tap_dance_state_t *state, void *user_data) {
+ switch (lshift_tap_state.state) {
+ case TD_SINGLE_HOLD: unregister_code(KC_LEFT_SHIFT); break;
+ case TD_DOUBLE_TAP:
+ case TD_DOUBLE_HOLD:
+ unregister_code(KC_DELETE); break;
+ case TD_SINGLE_TAP:
+ if (host_keyboard_led_state().caps_lock)
+ unregister_code(KC_CAPS_LOCK);
+ break;
+ default: break;
+ }
+ lshift_tap_state.state = TD_NONE;
+}
+
+// Definition for the key E
+// This key can transform into LEFT CONTROL when hold, but can also transform into È when double tapped.
+static td_tap_t e_tap_state = {
+ .is_press_action = true,
+ .state = TD_NONE
+};
+
+// Functions that control what our tap dance key does
+void e_finished(tap_dance_state_t *state, void *user_data) {
+ e_tap_state.state = cur_dance(state);
+ switch (e_tap_state.state) {
+ // Remove the layer with a single tap, this way I always have a key to remove the
+ // the layer, without knowing the previous state I had.
+ case TD_SINGLE_HOLD: register_code(KC_LEFT_CTRL); break;
+ case TD_DOUBLE_TAP:
+ register_code(BP_EGRV); break;
+ case TD_SINGLE_TAP:
+ register_code(BP_E); break;
+ break;
+ default: break;
+ }
+}
+
+void e_reset(tap_dance_state_t *state, void *user_data) {
+ switch (e_tap_state.state) {
+ case TD_SINGLE_HOLD: unregister_code(KC_LEFT_CTRL); break;
+ case TD_DOUBLE_TAP:
+ unregister_code(BP_EGRV); break;
+ case TD_SINGLE_TAP:
+ unregister_code(BP_E); break;
+ break;
+ default: break;
+ }
+ e_tap_state.state = TD_NONE;
+}
+
+
+
+//
+// Declare the tapdance table here.
+//
+tap_dance_action_t tap_dance_actions[] = {
+ [TD_C_CCED] = ACTION_TAP_DANCE_DOUBLE(BP_C, BP_CCED),
+ [TD_PRC] = ACTION_TAP_DANCE_DOUBLE(BP_EQL, BP_PERC),
+ [TD_W_CAPSLOCK] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, w_finished, w_reset),
+ [TD_LAYER_SYMB] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, ql_finished, ql_reset),
+ [TD_LSFT] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, lshift_finished, lshift_reset),
+ [TD_E_EE] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, e_finished, e_reset),
+};
+