keymap.c (4006B)
1 /* Copyright 2019 Ethan Durrant (emdarcher) 2 * 3 * This program is free software: you can redistribute it and/or modify 4 * it under the terms of the GNU General Public License as published by 5 * the Free Software Foundation, either version 2 of the License, or 6 * (at your option) any later version. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program. If not, see <http://www.gnu.org/licenses/>. 15 */ 16 #include QMK_KEYBOARD_H 17 18 //create the tap type 19 typedef struct { 20 bool is_press_action; 21 int state; 22 } tap; 23 24 //tap dance states 25 enum { 26 SINGLE_TAP = 1, 27 SINGLE_HOLD = 2, 28 }; 29 30 //tap dance keys 31 enum { 32 TAPPY_KEY = 0 33 }; 34 35 //function to handle all the tap dances 36 int cur_dance(tap_dance_state_t *state); 37 38 //functions for each tap dance 39 void tk_finished(tap_dance_state_t *state, void *user_data); 40 void tk_reset(tap_dance_state_t *state, void *user_data); 41 42 #define INDICATOR_LED B5 43 44 #define _FN0 1 45 #define _ML1 2 46 47 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = { 48 [0] = LAYOUT(/* Base */ 49 TD(TAPPY_KEY),KC_HOME, KC_PGUP, 50 KC_DEL, KC_END, KC_PGDN, 51 52 KC_UP, 53 KC_LEFT, KC_DOWN, KC_RIGHT), 54 [_FN0] = LAYOUT(/* function layer */ 55 KC_TRNS, KC_PAUS, KC_VOLU, 56 KC_ENTER, KC_SCRL, KC_VOLD, 57 58 KC_TRNS, 59 KC_TRNS, KC_TRNS, KC_TRNS), 60 [_ML1] = LAYOUT(/* media function layer, toggled on a single tap */ 61 KC_TRNS, KC_TRNS, KC_VOLU, 62 KC_MUTE, KC_TRNS, KC_VOLD, 63 64 KC_SPC, 65 KC_MRWD, KC_MPLY, KC_MFFD), 66 }; 67 68 //determine the current tap dance state 69 int cur_dance (tap_dance_state_t *state){ 70 if(state->count == 1){ 71 //if a tap was registered 72 if(!state->pressed){ 73 //if not still pressed, then was a single tap 74 return SINGLE_TAP; 75 } else { 76 //if still pressed/held down, then it's a single hold 77 return SINGLE_HOLD; 78 } 79 } else { 80 return 8; 81 } 82 } 83 84 //initialize the tap structure for the tap key 85 static tap tk_tap_state = { 86 .is_press_action = true, 87 .state = 0 88 }; 89 90 //functions that control what our tap dance key does 91 void tk_finished(tap_dance_state_t *state, void *user_data){ 92 tk_tap_state.state = cur_dance(state); 93 switch(tk_tap_state.state){ 94 case SINGLE_TAP: 95 //send desired key when tapped: 96 //setting to the media layer 97 if(layer_state_is(_ML1)){ 98 //if already active, toggle it to off 99 layer_off(_ML1); 100 //turn off the indicator LED 101 //set LED HI to turn it off 102 gpio_write_pin_high(INDICATOR_LED); 103 } else { 104 //turn on the media layer 105 layer_on(_ML1); 106 //turn on the indicator LED 107 //set LED pin to LOW to turn it on 108 gpio_write_pin_low(INDICATOR_LED); 109 } 110 break; 111 case SINGLE_HOLD: 112 //set to desired layer when held: 113 //setting to the function layer 114 layer_on(_FN0); 115 break; 116 } 117 } 118 119 void tk_reset(tap_dance_state_t *state, void *user_data){ 120 //if held and released, leave the layer 121 if(tk_tap_state.state == SINGLE_HOLD){ 122 layer_off(_FN0); 123 } 124 //reset the state 125 tk_tap_state.state = 0; 126 } 127 128 //associate the tap dance key with its functionality 129 tap_dance_action_t tap_dance_actions[] = { 130 [TAPPY_KEY] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, tk_finished, tk_reset) 131 };