1 files changed, 38 insertions, 0 deletions

diff --git a/users/danielo515/alt_tab.c b/users/danielo515/alt_tab.c
new file mode 100644
index 000000000..1602ee6fb
--- /dev/null
+++ b/users/danielo515/alt_tab.c
@@ -0,0 +1,38 @@
+#include "danielo515.h"
+#include "alt_tab.h"
+
+bool                       altPressed = false;
+__attribute__((weak)) void alt_tab_activated(void){};
+__attribute__((weak)) void alt_tab_deactivated(void){};
+extern bool                onMac;
+
+// =============== ALT_TAB single key handling
+bool process_alt_tab(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+        case ALT_TAB:
+            if (!record->event.pressed) {
+                return false;
+            }
+            if (altPressed) {
+                tap_code(KC_TAB);
+            } else {
+                altPressed = true;
+                onMac ? register_code(KC_LGUI) : register_code(KC_LALT);
+                tap_code(KC_TAB);
+                alt_tab_activated();
+            }
+        // avoid alt releasing if the key is of movement
+        case KC_RIGHT ... KC_UP:
+            if (altPressed) {
+                return true;  // yes QMK, do your stuff
+            }
+    }
+    // Reset sticky alt tab when any other key is pressed
+    if (altPressed) {
+        onMac ? unregister_code(KC_LGUI) : unregister_code(KC_LALT);
+        altPressed = false;
+        alt_tab_deactivated();
+        return false;
+    }
+    return true;
+};