Add Retro Shift (Auto Shift for Tap Hold via Retro Tapping) and Custom Auto Shifts (#11059)

* Add Retro Shift and Custom Auto Shifts

* Fix compilation errors with no RETRO_SHIFT value

1 files changed, 16 insertions, 3 deletions

diff --git a/quantum/action.c b/quantum/action.c
index ceaaa551f..5e81efb67 100644
--- a/quantum/action.c
+++ b/quantum/action.c
@@ -45,10 +45,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 int tp_buttons;
 
-#if defined(RETRO_TAPPING) || defined(RETRO_TAPPING_PER_KEY)
+#if defined(RETRO_TAPPING) || defined(RETRO_TAPPING_PER_KEY) || (defined(AUTO_SHIFT_ENABLE) && defined(RETRO_SHIFT))
 int retro_tapping_counter = 0;
 #endif
 
+#if defined(AUTO_SHIFT_ENABLE) && defined(RETRO_SHIFT) && !defined(NO_ACTION_TAPPING)
+#    include "process_auto_shift.h"
+#endif
+
 #ifdef IGNORE_MOD_TAP_INTERRUPT_PER_KEY
 __attribute__((weak)) bool get_ignore_mod_tap_interrupt(uint16_t keycode, keyrecord_t *record) { return false; }
 #endif
@@ -69,7 +73,7 @@ void action_exec(keyevent_t event) {
         dprint("EVENT: ");
         debug_event(event);
         dprintln();
-#if defined(RETRO_TAPPING) || defined(RETRO_TAPPING_PER_KEY)
+#if defined(RETRO_TAPPING) || defined(RETRO_TAPPING_PER_KEY) || (defined(AUTO_SHIFT_ENABLE) && defined(RETRO_SHIFT))
         retro_tapping_counter++;
 #endif
     }
@@ -106,6 +110,11 @@ void action_exec(keyevent_t event) {
 #endif
 
 #ifndef NO_ACTION_TAPPING
+#    if defined(AUTO_SHIFT_ENABLE) && defined(RETRO_SHIFT)
+    if (event.pressed) {
+        retroshift_poll_time(&event);
+    }
+#    endif
     if (IS_NOEVENT(record.event) || pre_process_record_quantum(&record)) {
         action_tapping_process(record);
     }
@@ -730,7 +739,7 @@ void process_action(keyrecord_t *record, action_t action) {
 #endif
 
 #ifndef NO_ACTION_TAPPING
-#    if defined(RETRO_TAPPING) || defined(RETRO_TAPPING_PER_KEY)
+#    if defined(RETRO_TAPPING) || defined(RETRO_TAPPING_PER_KEY) || (defined(AUTO_SHIFT_ENABLE) && defined(RETRO_SHIFT))
     if (!is_tap_action(action)) {
         retro_tapping_counter = 0;
     } else {
@@ -747,7 +756,11 @@ void process_action(keyrecord_t *record, action_t action) {
                     get_retro_tapping(get_event_keycode(record->event, false), record) &&
 #        endif
                     retro_tapping_counter == 2) {
+#        if defined(AUTO_SHIFT_ENABLE) && defined(RETRO_SHIFT)
+                    process_auto_shift(action.layer_tap.code, record);
+#        else
                     tap_code(action.layer_tap.code);
+#        endif
                 }
                 retro_tapping_counter = 0;
             }