2 files changed, 37 insertions, 8 deletions

diff --git a/quantum/process_keycode/process_unicode.c b/quantum/process_keycode/process_unicode.c
index cd3a610b4..a30e93ae3 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) {
diff --git a/quantum/quantum_keycodes.h b/quantum/quantum_keycodes.h
index 5cd3c8e78..4853655f9 100644
--- a/quantum/quantum_keycodes.h
+++ b/quantum/quantum_keycodes.h
@@ -159,6 +159,8 @@ enum quantum_keycodes {
 #define MEH(kc)  (kc | QK_LCTL | QK_LSFT | QK_LALT)
 #define LCAG(kc) (kc | QK_LCTL | QK_LALT | QK_LGUI)
 #define ALTG(kc) (kc | QK_RCTL | QK_RALT)
+#define SCMD(kc) (kc | QK_LGUI | QK_LSFT)
+#define SWIN(kc) SCMD(kc)
 
 #define MOD_HYPR 0xf
 #define MOD_MEH 0x7
@@ -293,6 +295,8 @@ enum quantum_keycodes {
 #define MEH_T(kc) MT((MOD_LCTL | MOD_LSFT | MOD_LALT), kc) // Meh is a less hyper version of the Hyper key -- doesn't include Win or Cmd, so just alt+shift+ctrl
 #define LCAG_T(kc) MT((MOD_LCTL | MOD_LALT | MOD_LGUI), kc) // Left control alt and gui
 #define ALL_T(kc) MT((MOD_LCTL | MOD_LSFT | MOD_LALT | MOD_LGUI), kc) // see http://brettterpstra.com/2012/12/08/a-useful-caps-lock-key/
+#define SCMD_T(kc) MT((MOD_LGUI | MOD_LSFT), kc)
+#define SWIN_T(kc) SCMD_T(kc)
 
 // Dedicated keycode versions for Hyper and Meh, if you want to use them as standalone keys rather than mod-tap
 #define KC_HYPR HYPR(KC_NO)