From a6d1db2c275f2e33e23135a6e410dbc8d19720a2 Mon Sep 17 00:00:00 2001
From: Joe Wasson <joe@talljoe.com>
Date: Mon, 17 Sep 2018 09:23:43 -0700
Subject: [PATCH] Create AG_TOGG code to toggle Alt/Gui swap.

---
 docs/feature_bootmagic.md  |  1 +
 docs/keycodes.md           |  1 +
 quantum/quantum.c          | 11 +++++++++++
 quantum/quantum_keycodes.h |  2 ++
 4 files changed, 15 insertions(+)

diff --git a/docs/feature_bootmagic.md b/docs/feature_bootmagic.md
index d6915d3559..586b5d8370 100644
--- a/docs/feature_bootmagic.md
+++ b/docs/feature_bootmagic.md
@@ -57,6 +57,7 @@ Hold down the Bootmagic key (Space by default) and the desired hotkey while plug
 |`MAGIC_UNNO_GUI`                  |         |Enable the GUI keys                       |
 |`MAGIC_SWAP_ALT_GUI`              |`AG_SWAP`|Swap Alt and GUI on both sides (for macOS)|
 |`MAGIC_UNSWAP_ALT_GUI`            |`AG_NORM`|Unswap Left Alt and Left GUI              |
+|`MAGIC_TOGGLE_ALT_GUI`            |`AG_TOGG`|Toggle Left Alt and GUI swap              |
 |`MAGIC_SWAP_BACKSLASH_BACKSPACE`  |         |Swap `\` and Backspace                    |
 |`MAGIC_UNSWAP_BACKSLASH_BACKSPACE`|         |Unswap `\` and Backspace                  |
 |`MAGIC_SWAP_CONTROL_CAPSLOCK`     |         |Swap Left Control and Caps Lock           |
diff --git a/docs/keycodes.md b/docs/keycodes.md
index c344a75283..6676bb53c9 100644
--- a/docs/keycodes.md
+++ b/docs/keycodes.md
@@ -271,6 +271,7 @@ This is a reference only. Each group of keys links to the page documenting their
 |`MAGIC_UNSWAP_BACKSLASH_BACKSPACE`|         |Unswap `\` and Backspace            |
 |`MAGIC_UNHOST_NKRO`               |         |Force NKRO off                      |
 |`MAGIC_UNSWAP_ALT_GUI`            |`AG_NORM`|Unswap Alt and GUI on both sides    |
+|`MAGIC_TOGGLE_ALT_GUI`            |`AG_TOGG`|Toggle Alt and GUI swap on both sides|
 |`MAGIC_TOGGLE_NKRO`               |         |Turn NKRO on or off                 |
 
 ## [Bluetooth](feature_bluetooth.md)
diff --git a/quantum/quantum.c b/quantum/quantum.c
index 9bf91eb865..84ccbdeaba 100644
--- a/quantum/quantum.c
+++ b/quantum/quantum.c
@@ -626,6 +626,17 @@ bool process_record_quantum(keyrecord_t *record) {
               PLAY_SONG(ag_norm_song);
             #endif
             break;
+          case MAGIC_TOGGLE_ALT_GUI:
+            keymap_config.swap_lalt_lgui = !keymap_config.swap_lalt_lgui;
+            keymap_config.swap_ralt_rgui = !keymap_config.swap_ralt_rgui;
+            #ifdef AUDIO_ENABLE
+              if (keymap_config.swap_ralt_rgui) {
+                PLAY_SONG(ag_swap_song);
+              } else {
+                PLAY_SONG(ag_norm_song);
+              }
+            #endif
+            break;
           case MAGIC_TOGGLE_NKRO:
             keymap_config.nkro = !keymap_config.nkro;
             break;
diff --git a/quantum/quantum_keycodes.h b/quantum/quantum_keycodes.h
index 3b87954960..050d2d275d 100644
--- a/quantum/quantum_keycodes.h
+++ b/quantum/quantum_keycodes.h
@@ -116,6 +116,7 @@ enum quantum_keycodes {
     MAGIC_UNHOST_NKRO,
     MAGIC_UNSWAP_ALT_GUI,
     MAGIC_TOGGLE_NKRO,
+    MAGIC_TOGGLE_ALT_GUI,
     GRAVE_ESC,
 
     // Leader key
@@ -590,6 +591,7 @@ enum quantum_keycodes {
 
 #define AG_SWAP MAGIC_SWAP_ALT_GUI
 #define AG_NORM MAGIC_UNSWAP_ALT_GUI
+#define AG_TOGG MAGIC_TOGGLE_ALT_GUI
 
 // GOTO layer - 16 layers max
 // when: