lotus: Implement screen switcher media key

Signed-off-by: Daniel Schaefer <dhs@frame.work>

keyboards/lotus/keymaps/78_ansi/keymap.c

@@ -52,7 +52,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     // TODO: Screen toggle, airplane mode
     // TODO: Other unlabeled keys
     [1] = LAYOUT_78_ansi(
-        TG(1), KC_KB_MUTE, KC_KB_VOLUME_DOWN, KC_KB_VOLUME_UP, KC_MPRV, KC_MPLY, KC_MNXT, KC_BRID, KC_BRIU, KC_TRNS, KC_TRNS, KC_PSCR, KC_MSEL, KC_INS,
+        TG(1), KC_KB_MUTE, KC_KB_VOLUME_DOWN, KC_KB_VOLUME_UP, KC_MPRV, KC_MPLY, KC_MNXT, KC_BRID, KC_BRIU, KC_SCRN, KC_TRNS, KC_PSCR, KC_MSEL, KC_INS,
         KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
         KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PAUS, KC_TRNS, KC_TRNS, KC_TRNS,
         KC_TRNS, KC_TRNS, KC_SYRQ, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_SCRL, KC_TRNS, KC_TRNS, KC_TRNS,          KC_TRNS,

keyboards/lotus/keymaps/79_iso/keymap.c

@@ -52,7 +52,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     // TODO: Screen toggle, airplane mode
     // TODO: Other unlabeled keys
     [1] = LAYOUT_79_iso(
-        TG(1), KC_KB_MUTE, KC_KB_VOLUME_DOWN, KC_KB_VOLUME_UP, KC_MPRV, KC_MPLY, KC_MNXT, KC_BRID, KC_BRIU, KC_TRNS, KC_TRNS, KC_PSCR, KC_MSEL, KC_INS,
+        TG(1), KC_KB_MUTE, KC_KB_VOLUME_DOWN, KC_KB_VOLUME_UP, KC_MPRV, KC_MPLY, KC_MNXT, KC_BRID, KC_BRIU, KC_SCRN, KC_TRNS, KC_PSCR, KC_MSEL, KC_INS,
         KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
         KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PAUS, KC_TRNS, KC_TRNS,
         KC_TRNS, KC_TRNS, KC_SYRQ, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_SCRL, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,

keyboards/lotus/keymaps/83_jis/keymap.c

@@ -53,7 +53,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     // TODO: Screen toggle, airplane mode
     // TODO: Other unlabeled keys
     [1] = LAYOUT_83_jis(
-        TG(1), KC_KB_MUTE, KC_KB_VOLUME_DOWN, KC_KB_VOLUME_UP, KC_MPRV, KC_MPLY, KC_MNXT, KC_BRID, KC_BRIU, KC_TRNS, KC_TRNS, KC_PSCR, KC_MSEL, KC_INS,
+        TG(1), KC_KB_MUTE, KC_KB_VOLUME_DOWN, KC_KB_VOLUME_UP, KC_MPRV, KC_MPLY, KC_MNXT, KC_BRID, KC_BRIU, KC_SCRN, KC_TRNS, KC_PSCR, KC_MSEL, KC_INS,
         KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
         KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PAUS, KC_TRNS, KC_TRNS,
         KC_TRNS, KC_TRNS, KC_SYRQ, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_SCRL, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,

keyboards/lotus/lotus.c

@@ -22,3 +22,23 @@ void keyboard_pre_init_user(void) {
     setPinOutput(BOOT_DONE_GPIO);
     writePinHigh(BOOT_DONE_GPIO);
 }
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+  process_record_user();
+
+  switch (keycode) {
+    case KC_SCRN:
+      // Simulate press WIN+P
+      // Works (at least) on Windows and GNOME
+      if (record->event.pressed) {
+        register_code(KC_LGUI);
+        register_code(KC_P);
+      } else {
+        unregister_code(KC_LGUI);
+        unregister_code(KC_P);
+      }
+      return false; // Skip all further processing of this key
+    default:
+      return true; // Process all other keycodes normally
+  }
+}

keyboards/lotus/lotus.h

@@ -5,6 +5,11 @@
 
 #include "quantum.h"
 
+enum lotus_keycodes {
+  // Custom keycode to change screen modes (e.g. enable external screen)
+  KC_SCRN = SAFE_RANGE,
+};
+
 // The layouts are all mostly the same, except for the extra keys that the different layouts have
 #define LAYOUT_78_ansi( \
   K110,  K112,  K113,  K114,  K115,  K116,  K117,  K118,  K119,  K120,  K121,  K122,  K126,   K76, \