[Keymap] Jonavin merc additional encoder functionality (#13039)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Jonavin <=>

3 files changed, 155 insertions, 18 deletions

diff --git a/keyboards/mechwild/mercutio/keymaps/jonavin/keymap.c b/keyboards/mechwild/mercutio/keymaps/jonavin/keymap.c
index f5dddcfac..6fadea489 100755
--- a/keyboards/mechwild/mercutio/keymaps/jonavin/keymap.c
+++ b/keyboards/mechwild/mercutio/keymaps/jonavin/keymap.c
@@ -26,19 +26,38 @@ enum custom_layers {
     _RAISE,
 };
 
+enum custom_keycodes {
+  ENCFUNC = SAFE_RANGE, // encoder function keys
+};
+
+// Tap Dance Definitions
+enum custom_tapdance {
+  TD_LSFT_CAPSLOCK,
+};
+
+qk_tap_dance_action_t tap_dance_actions[] = {
+  // Tap once for shift, twice for Caps Lock
+  [TD_LSFT_CAPSLOCK] = ACTION_TAP_DANCE_DOUBLE(KC_LSFT, KC_CAPS),
+};
+
+#define KC_LSFTCAPS TD(TD_LSFT_CAPSLOCK)
+#define KC_CAD  LALT(LCTL(KC_DEL))
+#define KC_AF4  LALT(KC_F4)
+#define KC_TASK LCTL(LSFT(KC_ESC))
+
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [_BASE] = LAYOUT_all(
                                                                                                                 KC_MUTE,
     KC_TAB,           KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC,
     TT(_RAISE),            KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,   KC_SCLN, KC_QUOT,
-    KC_LSFT, KC_SLSH, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,           KC_SFTENT,
+    KC_LSFTCAPS, KC_SLSH, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,           KC_SFTENT,
     KC_LCTL, KC_LGUI, KC_LALT,          KC_SPC,  LT(_LOWER,KC_SPC),         KC_SPC,           KC_RALT, MO(_FN1),  KC_RCTL ),
 
   [_FN1] = LAYOUT_all(
-                                                                                                                KC_TRNS,
+                                                                                                                ENCFUNC,
     KC_ESC,           KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_DEL,
-    KC_CAPS,          KC_F11,  KC_F12,  KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_PSCR, KC_SCLN, KC_PAUS, KC_NO,   KC_NO,
-    KC_TRNS, KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NLCK, KC_P0,   KC_NO,   KC_NO,            KC_SFTENT,
+    KC_CAPS,          KC_F11,  KC_F12,  KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_PSCR, KC_SLCK, KC_PAUS, KC_NO,   KC_NO,
+    KC_TRNS, KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NLCK, KC_NO,   KC_NO,   KC_NO,            KC_SFTENT,
     KC_TRNS, KC_TRNS, KC_TRNS,          KC_TRNS, KC_TRNS,          KC_TRNS,          KC_TRNS, KC_TRNS,          KC_TRNS ),
 
   [_LOWER] = LAYOUT_all(
@@ -56,8 +75,64 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
         KC_TRNS, KC_TRNS, KC_TRNS,          KC_BSPC, KC_TRNS,          KC_TRNS,          KC_TRNS, KC_TRNS,          KC_TRNS )
 };
 
+/*  These are needed whether encoder function is enabled or not when ENCFUNC keycode is pressed.
+    Defaults never changes if no encoder present to change it
+*/
+typedef struct {
+     char keydesc[6];    // this will be displayed on OLED
+    uint16_t keycode;   // this is the keycode that will be sent when activted
+} keycodedescType;
+
+static const keycodedescType PROGMEM keyselection[] = {
+    // list of key codes that will be scrollled through by encoder and description
+        {"TASK",    KC_TASK},
+        {"INS",     KC_INS},
+        {"DEL",     KC_DEL},
+        {"PrtSc",   KC_PSCR},
+        {"ScrLk",   KC_SCLN},
+        {"Break",   KC_PAUS},
+        {"C-A-D",   KC_CAD},  // Ctrl-Alt-Del
+        {"AltF4",   KC_AF4},
+        {"PLAY",    KC_MEDIA_PLAY_PAUSE}
+};
+
+#define MAX_KEYSELECTION sizeof(keyselection)/sizeof(keyselection[0])
+
+static uint8_t selectedkey_idx = 0;
+static keycodedescType selectedkey_rec;
+
+static void set_selectedkey(uint8_t idx) {
+    // make a copy from PROGMEM
+    memcpy_P (&selectedkey_rec, &keyselection[idx], sizeof selectedkey_rec);
+
+    //selectedkey_rec = keyselection[idx];
+
+}
+
+void keyboard_post_init_user(void) {
+  // Call the keyboard post init code.
+    //selectedkey_rec = keyselection[selectedkey_idx];
+    set_selectedkey(selectedkey_idx);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+    case ENCFUNC:
+        if (record->event.pressed) {
+            tap_code16(selectedkey_rec.keycode);
+        } else {
+            // when keycode is released
+        }
+        break;
+    }
+    return true;
+};
+
+
+
 #ifdef ENCODER_ENABLE       // Encoder Functionality
     uint8_t selected_layer = 0;
+
     bool encoder_update_user(uint8_t index, bool clockwise) {
         #ifdef OLED_DRIVER_ENABLE
             oled_clear();
@@ -65,21 +140,54 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
         #endif
         switch (index) {
             case 0:         // This is the only encoder right now, keeping for consistency
-                if ( clockwise ) {
-                    if ( selected_layer  < 3 && keyboard_report->mods & MOD_BIT(KC_LSFT) ) { // If you are holding L shift, encoder changes layers
-                        selected_layer ++;
-                        layer_move(selected_layer);
+                switch(get_highest_layer(layer_state)){  // special handling per layer
+                case _FN1:  // on Fn layer select what the encoder does when pressed
+                    if (!keyboard_report->mods) {
+                        if ( clockwise ) {
+                            if ( selectedkey_idx  < MAX_KEYSELECTION-1) {
+                                selectedkey_idx ++;
+                            } else {
+                               // do nothing
+                            }
+                        } else if ( !clockwise ) {
+                            if ( selectedkey_idx  > 0){
+                                selectedkey_idx --;
+                            } else {
+                                // do nothing
+                            }
+                        }
+                        set_selectedkey(selectedkey_idx);
+                        break;
                     } else {
-                        tap_code(KC_VOLU);                                                   // Otherwise it just changes volume
+                           // continue to default
                     }
-                } else if ( !clockwise ) {
-                    if ( selected_layer  > 0 && keyboard_report->mods & MOD_BIT(KC_LSFT) ){
-                        selected_layer --;
-                        layer_move(selected_layer);
-                    } else {
-                        tap_code(KC_VOLD);
+                default:   // all other layers
+                    if ( clockwise ) {
+                        if ( selected_layer  < 3 && keyboard_report->mods & MOD_BIT(KC_LSFT) ) { // If you are holding L shift, encoder changes layers
+                            selected_layer ++;
+                            layer_move(selected_layer);
+                        } else if (keyboard_report->mods & MOD_BIT(KC_LCTL)) {  // if holding Left Ctrl, navigate next word
+                             tap_code16(LCTL(KC_RGHT));
+                        } else if (keyboard_report->mods & MOD_BIT(KC_LALT)) {  // if holding Left Alt, change media next track
+                            tap_code(KC_MEDIA_NEXT_TRACK);
+                        } else  {
+                            tap_code(KC_VOLU);                                                   // Otherwise it just changes volume
+                        }
+                    } else if ( !clockwise ) {
+                        if ( selected_layer  > 0 && keyboard_report->mods & MOD_BIT(KC_LSFT) ) {
+                            selected_layer --;
+                            layer_move(selected_layer);
+                        } else if (keyboard_report->mods & MOD_BIT(KC_LCTL)) {  // if holding Left Ctrl, navigate previous word
+                            tap_code16(LCTL(KC_LEFT));
+                        } else if (keyboard_report->mods & MOD_BIT(KC_LALT)) {  // if holding Left Alt, change media previous track
+                            tap_code(KC_MEDIA_PREV_TRACK);
+                        } else {
+                            tap_code(KC_VOLD);
+                        }
                     }
+                    break;
                 }
+                break;
         }
         return true;
     }
@@ -129,12 +237,15 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
             }
             render_logo();
             oled_set_cursor(8,2);
+            char fn_str[12];
             switch(selected_layer){
                 case 0:
                     oled_write_P(PSTR("BASE"), false);
                     break;
                 case 1:
-                    oled_write_P(PSTR("FN"), false);
+                    sprintf(fn_str, "FN %5s", selectedkey_rec.keydesc);
+                    oled_write(fn_str, false);
+                    //oled_write_P(PSTR("FN "), false);
                     break;
                 case 2:
                     oled_write_P(PSTR("LOWER"), false);
@@ -147,14 +258,15 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
             }
             oled_set_cursor(8,3);
             if (get_highest_layer(layer_state) == selected_layer) {
-                oled_write_P(PSTR("            "), false);
+                oled_write_P(PSTR("             "), false);
             } else {
                 switch (get_highest_layer(layer_state)) {
                     case 0:
                         oled_write_P(PSTR("Temp BASE"), false);
                         break;
                     case 1:
-                        oled_write_P(PSTR("Temp FN"), false);
+                        sprintf(fn_str, "Temp FN %5s", selectedkey_rec.keydesc);
+                        oled_write(fn_str, false);
                         break;
                     case 2:
                         oled_write_P(PSTR("Temp LOWER"), false);
diff --git a/keyboards/mechwild/mercutio/keymaps/jonavin/readme.md b/keyboards/mechwild/mercutio/keymaps/jonavin/readme.md
index 5122f143d..9180ac215 100644
--- a/keyboards/mechwild/mercutio/keymaps/jonavin/readme.md
+++ b/keyboards/mechwild/mercutio/keymaps/jonavin/readme.md
@@ -12,5 +12,29 @@ Features
   - MOUSEKEYS is disbled
   - shutdown oled when powered down to prevent OLED from showing Mercutio all the time
   - add WPM indicator when wpm is > 20 wpm
+  - add double tap of Left Shift to toggle Caps Lock
+  
+  - FN layer has encoder selectable key codes and displayed on OLED
+        
+        Change these in keymap.c to assign your desired key selection
 
+        static const keycodedescType PROGMEM keyselection[] = {
+            // list of key codes that will be scrollled through by encoder and description
+                {"TASK",    KC_TASK},
+                {"INS",     KC_INS},
+                {"DEL",     KC_DEL},
+                {"PrtSc",   KC_PSCR},
+                {"ScrLk",   KC_SCLN},
+                {"Break",   KC_PAUS},
+                {"C-A-D",   KC_CAD},  // Ctrl-Alt-Del
+                {"AltF4",   KC_AF4},
+                {"PLAY",    KC_MEDIA_PLAY_PAUSE}
+        };
+
+  - Additional encoder functionality 
+        While holding Left Ctrl, navigates next or previous word
+        While holding Left Alt, media next track or previous track
+
+
+Default Layers
 ![image](https://user-images.githubusercontent.com/71780717/118902752-4aaf7880-b8e4-11eb-82f4-e5047612ffcf.png)
diff --git a/keyboards/mechwild/mercutio/keymaps/jonavin/rules.mk b/keyboards/mechwild/mercutio/keymaps/jonavin/rules.mk
index 5ae6c7d31..550e84c80 100644
--- a/keyboards/mechwild/mercutio/keymaps/jonavin/rules.mk
+++ b/keyboards/mechwild/mercutio/keymaps/jonavin/rules.mk
@@ -2,3 +2,4 @@ VIA_ENABLE = yes
 
 MOUSEKEY_ENABLE = yes
 WPM_ENABLE = yes
+TAP_DANCE_ENABLE = yes