Add per-key IGNORE_MOD_TAP_INTERRUPT feature (#7838)

* Implement IGNORE_MOD_TAP_INTERRUPT_PER_KEY

- Add configurable option IGNORE_MOD_TAP_INTERRUPT_PER_KEY
- Add function get_ignore_mod_tap_interrupt iff the option is enabled

Unless IGNORE_MOD_TAP_INTERRUPT_PER_KEY is defined, this patch does not affect the resulting binary.

* Add documentation for IGNORE_MOD_TAP_INTERRUPT_PER_KEY

1 files changed, 10 insertions, 2 deletions

diff --git a/tmk_core/common/action.c b/tmk_core/common/action.c
index 7fbdbd8c3..d6062703e 100644
--- a/tmk_core/common/action.c
+++ b/tmk_core/common/action.c
@@ -47,6 +47,10 @@ int retro_tapping_counter = 0;
 #    include <fauxclicky.h>
 #endif
 
+#ifdef IGNORE_MOD_TAP_INTERRUPT_PER_KEY
+__attribute__ ((weak)) bool get_ignore_mod_tap_interrupt(uint16_t keycode) { return false; }
+#endif
+
 #ifndef TAP_CODE_DELAY
 #    define TAP_CODE_DELAY 0
 #endif
@@ -308,8 +312,12 @@ void process_action(keyrecord_t *record, action_t action) {
                 default:
                     if (event.pressed) {
                         if (tap_count > 0) {
-#    ifndef IGNORE_MOD_TAP_INTERRUPT
-                            if (record->tap.interrupted) {
+#    if !defined(IGNORE_MOD_TAP_INTERRUPT) || defined(IGNORE_MOD_TAP_INTERRUPT_PER_KEY)
+                            if (
+#        ifdef IGNORE_MOD_TAP_INTERRUPT_PER_KEY
+                                !get_ignore_mod_tap_interrupt(get_event_keycode(record->event)) &&
+#        endif
+                                record->tap.interrupted) {
                                 dprint("mods_tap: tap: cancel: add_mods\n");
                                 // ad hoc: set 0 to cancel tap
                                 record->tap.count = 0;