1 files changed, 77 insertions, 0 deletions
diff --git a/users/drashna/keyrecords/caps_word.h b/users/drashna/keyrecords/caps_word.h
index 79e410ddda..4279d7e831 100644
--- a/users/drashna/keyrecords/caps_word.h
+++ b/users/drashna/keyrecords/caps_word.h
@@ -5,4 +5,81 @@
 
 #include "drashna.h"
 
+// Call this function from `process_record_user()` to implement Caps Word.
 bool process_caps_word(uint16_t keycode, keyrecord_t* record);
+
+// If CAPS_WORD_IDLE_TIMEOUT is set, call `caps_word_task()` from
+// `matrix_scan_user()` as described above.
+//
+// If CAPS_WORD_IDLE_TIMEOUT isn't set, calling this function has no effect (but
+// will still compile).
+#if CAPS_WORD_IDLE_TIMEOUT > 0
+void caps_word_task(void);
+#else
+static inline void caps_word_task(void) {}
+#endif
+
+// Activates or deactivates Caps Word. For instance activate Caps Word with a
+// combo by defining a `COMBO_ACTION` that calls `caps_word_set(true)`:
+//
+// void process_combo_event(uint16_t combo_index, bool pressed) {
+//   switch(combo_index) {
+//     case CAPS_COMBO:
+//       if (pressed) {
+//         caps_word_set(true);  // Activate Caps Word.
+//       }
+//       break;
+//
+//     // Other combos...
+//   }
+// }
+void caps_word_set(bool active);
+
+// Returns whether Caps Word is currently active.
+bool caps_word_get(void);
+
+// An optional callback that gets called when Caps Word turns on or off. This is
+// useful to represent the current Caps Word state, e.g. by setting an LED or
+// playing a sound. In your keymap, define
+//
+//   void caps_word_set_user(bool active) {
+//     if (active) {
+//       // Do something when Caps Word activates.
+//     } else {
+//       // Do something when Caps Word deactivates.
+//     }
+//   }
+void caps_word_set_user(bool active);
+
+// An optional callback which is called on every key press while Caps Word is
+// active. When the key should be shifted (that is, a letter key), the callback
+// should call `add_weak_mods(MOD_BIT(KC_LSFT))` to shift the key. The callback
+// also determines whether the key should continue Caps Word. Returning true
+// continues the current "word", while returning false is "word breaking" and
+// deactivates Caps Word. The default callback is
+//
+//   bool caps_word_press_user(uint16_t keycode) {
+//     switch (keycode) {
+//       // Keycodes that continue Caps Word, with shift applied.
+//       case KC_A ... KC_Z:
+//         add_weak_mods(MOD_BIT(KC_LSFT));  // Apply shift to the next key.
+//         return true;
+//
+//       // Keycodes that continue Caps Word, without shifting.
+//       case KC_1 ... KC_0:
+//       case KC_BSPC:
+//       case KC_MINS:
+//       case KC_UNDS:
+//         return true;
+//
+//       default:
+//         return false;  // Deactivate Caps Word.
+//     }
+//   }
+//
+// To customize, copy the above function into your keymap and add/remove
+// keycodes to the above cases.
+//
+// NOTE: Outside of this callback, you can use `caps_word_set(false)` to
+// deactivate Caps Word.
+bool caps_word_press_user(uint16_t keycode);