1 files changed, 27 insertions, 0 deletions

diff --git a/users/callum/swapper.c b/users/callum/swapper.c
new file mode 100644
index 000000000..736b2fef0
--- /dev/null
+++ b/users/callum/swapper.c
@@ -0,0 +1,27 @@
+#include "swapper.h"
+
+void update_swapper(
+    bool *active,
+    uint16_t cmdish,
+    uint16_t tabish,
+    uint16_t trigger,
+    uint16_t keycode,
+    keyrecord_t *record
+) {
+    if (keycode == trigger) {
+        if (record->event.pressed) {
+            if (!*active) {
+                *active = true;
+                register_code(cmdish);
+            }
+            register_code(tabish);
+        } else {
+            unregister_code(tabish);
+            // Don't unregister cmdish until some other key is hit or released.
+        }
+    } else if (*active) {
+        unregister_code(cmdish);
+        *active = false;
+    }
+}
+