4 files changed, 61 insertions, 11 deletions

diff --git a/quantum/process_keycode/process_music.c b/quantum/process_keycode/process_music.c
index bae43943e..1e2648bff 100644
--- a/quantum/process_keycode/process_music.c
+++ b/quantum/process_keycode/process_music.c
@@ -114,8 +114,18 @@ bool process_music(uint16_t keycode, keyrecord_t *record) {
             music_sequence_interval+=10;
         return false;
       }
-
+      #define MUSIC_MODE_GUITAR
+
+      #ifdef MUSIC_MODE_CHROMATIC
+      float freq = ((float)220.0)*pow(2.0, -5.0)*pow(2.0,(music_starting_note + record->event.key.col + music_offset)/12.0+(MATRIX_ROWS - record->event.key.row));
+      #elif defined(MUSIC_MODE_GUITAR)
+      float freq = ((float)220.0)*pow(2.0, -5.0)*pow(2.0,(music_starting_note + record->event.key.col + music_offset)/12.0+(float)(MATRIX_ROWS - record->event.key.row + 7)*5.0/12);
+      #elif defined(MUSIC_MODE_VIOLIN)
+      float freq = ((float)220.0)*pow(2.0, -5.0)*pow(2.0,(music_starting_note + record->event.key.col + music_offset)/12.0+(float)(MATRIX_ROWS - record->event.key.row + 5)*7.0/12);
+      #else
       float freq = ((float)220.0)*pow(2.0, -5.0)*pow(2.0,(music_starting_note + SCALE[record->event.key.col + music_offset])/12.0+(MATRIX_ROWS - record->event.key.row));
+      #endif
+
       if (record->event.pressed) {
         play_note(freq, 0xF);
         if (music_sequence_recording) {
diff --git a/quantum/process_keycode/process_tap_dance.c b/quantum/process_keycode/process_tap_dance.c
index 6ae362c4c..403dca538 100644
--- a/quantum/process_keycode/process_tap_dance.c
+++ b/quantum/process_keycode/process_tap_dance.c
@@ -43,12 +43,16 @@ static inline void process_tap_dance_action_on_dance_finished (qk_tap_dance_acti
   if (action->state.finished)
     return;
   action->state.finished = true;
+  add_mods(action->state.oneshot_mods);
+  send_keyboard_report();
   _process_tap_dance_action_fn (&action->state, action->user_data, action->fn.on_dance_finished);
 }
 
 static inline void process_tap_dance_action_on_reset (qk_tap_dance_action_t *action)
 {
   _process_tap_dance_action_fn (&action->state, action->user_data, action->fn.on_reset);
+  del_mods(action->state.oneshot_mods);
+  send_keyboard_report();
 }
 
 bool process_tap_dance(uint16_t keycode, keyrecord_t *record) {
@@ -70,6 +74,7 @@ bool process_tap_dance(uint16_t keycode, keyrecord_t *record) {
       action->state.keycode = keycode;
       action->state.count++;
       action->state.timer = timer_read();
+      action->state.oneshot_mods = get_oneshot_mods();
       process_tap_dance_action_on_each_tap (action);
 
       if (last_td && last_td != keycode) {
@@ -109,7 +114,7 @@ void matrix_scan_tap_dance () {
   if (highest_td == -1)
     return;
 
-  for (int i = 0; i <= highest_td; i++) {
+for (int i = 0; i <= highest_td; i++) {
     qk_tap_dance_action_t *action = &tap_dance_actions[i];
 
     if (action->state.count && timer_elapsed (action->state.timer) > TAPPING_TERM) {
diff --git a/quantum/process_keycode/process_tap_dance.h b/quantum/process_keycode/process_tap_dance.h
index f753cbba6..726752ecc 100644
--- a/quantum/process_keycode/process_tap_dance.h
+++ b/quantum/process_keycode/process_tap_dance.h
@@ -9,6 +9,7 @@
 typedef struct
 {
   uint8_t count;
+  uint8_t oneshot_mods;
   uint16_t keycode;
   uint16_t timer;
   bool interrupted;
diff --git a/quantum/process_keycode/process_unicode.c b/quantum/process_keycode/process_unicode.c
index cd3a610b4..9995ba9bd 100644
--- a/quantum/process_keycode/process_unicode.c
+++ b/quantum/process_keycode/process_unicode.c
@@ -1,6 +1,8 @@
 #include "process_unicode.h"
+#include "action_util.h"
 
 static uint8_t input_mode;
+uint8_t mods;
 
 __attribute__((weak))
 uint16_t hex_to_keycode(uint8_t hex)
@@ -25,6 +27,19 @@ uint8_t get_unicode_input_mode(void) {
 
 __attribute__((weak))
 void unicode_input_start (void) {
+  // save current mods
+  mods = keyboard_report->mods;
+
+  // unregister all mods to start from clean state
+  if (mods & MOD_BIT(KC_LSFT)) unregister_code(KC_LSFT);
+  if (mods & MOD_BIT(KC_RSFT)) unregister_code(KC_RSFT);
+  if (mods & MOD_BIT(KC_LCTL)) unregister_code(KC_LCTL);
+  if (mods & MOD_BIT(KC_RCTL)) unregister_code(KC_RCTL);
+  if (mods & MOD_BIT(KC_LALT)) unregister_code(KC_LALT);
+  if (mods & MOD_BIT(KC_RALT)) unregister_code(KC_RALT);
+  if (mods & MOD_BIT(KC_LGUI)) unregister_code(KC_LGUI);
+  if (mods & MOD_BIT(KC_RGUI)) unregister_code(KC_RGUI);
+
   switch(input_mode) {
   case UC_OSX:
     register_code(KC_LALT);
@@ -54,15 +69,25 @@ void unicode_input_start (void) {
 __attribute__((weak))
 void unicode_input_finish (void) {
   switch(input_mode) {
-  case UC_OSX:
-  case UC_WIN:
-    unregister_code(KC_LALT);
-    break;
-  case UC_LNX:
-    register_code(KC_SPC);
-    unregister_code(KC_SPC);
-    break;
+    case UC_OSX:
+    case UC_WIN:
+      unregister_code(KC_LALT);
+      break;
+    case UC_LNX:
+      register_code(KC_SPC);
+      unregister_code(KC_SPC);
+      break;
   }
+
+  // reregister previously set mods
+  if (mods & MOD_BIT(KC_LSFT)) register_code(KC_LSFT);
+  if (mods & MOD_BIT(KC_RSFT)) register_code(KC_RSFT);
+  if (mods & MOD_BIT(KC_LCTL)) register_code(KC_LCTL);
+  if (mods & MOD_BIT(KC_RCTL)) register_code(KC_RCTL);
+  if (mods & MOD_BIT(KC_LALT)) register_code(KC_LALT);
+  if (mods & MOD_BIT(KC_RALT)) register_code(KC_RALT);
+  if (mods & MOD_BIT(KC_LGUI)) register_code(KC_LGUI);
+  if (mods & MOD_BIT(KC_RGUI)) register_code(KC_RGUI);
 }
 
 void register_hex(uint16_t hex) {
@@ -116,7 +141,16 @@ bool process_unicode_map(uint16_t keycode, keyrecord_t *record) {
     const uint32_t* map = unicode_map;
     uint16_t index = keycode & 0x7FF;
     uint32_t code = pgm_read_dword_far(&map[index]);
-    if ((code > 0xFFFF && input_mode == UC_OSX) || (code > 0xFFFFF && input_mode == UC_LNX)) {
+    if (code > 0xFFFF && code <= 0x10ffff && input_mode == UC_OSX) {
+      // Convert to UTF-16 surrogate pair
+      code -= 0x10000;
+      uint32_t lo = code & 0x3ff;
+      uint32_t hi = (code & 0xffc00) >> 10;
+      unicode_input_start();
+      register_hex32(hi + 0xd800);
+      register_hex32(lo + 0xdc00);
+      unicode_input_finish();
+    } else if ((code > 0x10ffff && input_mode == UC_OSX) || (code > 0xFFFFF && input_mode == UC_LNX)) {
       // when character is out of range supported by the OS
       unicode_map_input_error();
     } else {