refactor(core): Extra event payloads to own types, refactor API.

* Make it easier to use *just* event payloads by defining the data,
  and then having event manager macros generate "wrapper structs"
* Improve is_*/cast_* APIs to hide details of full event struct.
* Create `zmk_event_t` typedef to pass to event handlers.
* Bring event names inline w/ consistent `zmk_` prefix.

1 files changed, 10 insertions, 12 deletions

diff --git a/app/include/zmk/events/keycode_state_changed.h b/app/include/zmk/events/keycode_state_changed.h
index 85b792b..031169d 100644
--- a/app/include/zmk/events/keycode_state_changed.h
+++ b/app/include/zmk/events/keycode_state_changed.h
@@ -12,8 +12,7 @@
 #include <zmk/event_manager.h>
 #include <zmk/keys.h>
 
-struct keycode_state_changed {
-    struct zmk_event_header header;
+struct zmk_keycode_state_changed {
     uint16_t usage_page;
     uint32_t keycode;
     uint8_t implicit_modifiers;
@@ -21,10 +20,10 @@ struct keycode_state_changed {
     int64_t timestamp;
 };
 
-ZMK_EVENT_DECLARE(keycode_state_changed);
+ZMK_EVENT_DECLARE(zmk_keycode_state_changed);
 
-static inline struct keycode_state_changed *
-keycode_state_changed_from_encoded(uint32_t encoded, bool pressed, int64_t timestamp) {
+static inline struct zmk_keycode_state_changed_event *
+zmk_keycode_state_changed_from_encoded(uint32_t encoded, bool pressed, int64_t timestamp) {
     uint16_t page = HID_USAGE_PAGE(encoded) & 0xFF;
     uint16_t id = HID_USAGE_ID(encoded);
     zmk_mod_flags_t implicit_mods = SELECT_MODS(encoded);
@@ -33,11 +32,10 @@ keycode_state_changed_from_encoded(uint32_t encoded, bool pressed, int64_t times
         page = HID_USAGE_KEY;
     }
 
-    struct keycode_state_changed *ev = new_keycode_state_changed();
-    ev->usage_page = page;
-    ev->keycode = id;
-    ev->implicit_modifiers = implicit_mods;
-    ev->state = pressed;
-    ev->timestamp = timestamp;
-    return ev;
+    return new_zmk_keycode_state_changed(
+        (struct zmk_keycode_state_changed){.usage_page = page,
+                                           .keycode = id,
+                                           .implicit_modifiers = implicit_mods,
+                                           .state = pressed,
+                                           .timestamp = timestamp});
 }