From 77f93636757d32f4e2ce6d7295f3d6293af3b462 Mon Sep 17 00:00:00 2001
From: Priyadi Iman Nurcahyo <priyadi@priyadi.net>
Date: Tue, 21 Feb 2017 03:24:32 +0700
Subject: [PATCH] Only process Fnumber on key release, and only when layer is
 still active

---
 .../handwired/promethium/keymaps/priyadi/keymap.c      | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/keyboards/handwired/promethium/keymaps/priyadi/keymap.c b/keyboards/handwired/promethium/keymaps/priyadi/keymap.c
index 8f712ccf..cf486b39 100644
--- a/keyboards/handwired/promethium/keymaps/priyadi/keymap.c
+++ b/keyboards/handwired/promethium/keymaps/priyadi/keymap.c
@@ -1046,6 +1046,16 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
       break;
 #endif
 
+    // only process Fnumber on key release, and only when layer switcher is still pressed.
+    // this is to avoid accidental presses
+    case KC_F1 ... KC_F12:
+      if (!record->event.pressed && layer == _FUN) {
+          register_code(keycode);
+          unregister_code(keycode);
+      }
+      return false;
+      break;
+
     // layer switcher
     //
     case GREEK: