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, 6 insertions, 10 deletions

diff --git a/app/include/zmk/events/layer_state_changed.h b/app/include/zmk/events/layer_state_changed.h
index cf24002..3318354 100644
--- a/app/include/zmk/events/layer_state_changed.h
+++ b/app/include/zmk/events/layer_state_changed.h
@@ -9,20 +9,16 @@
 #include <zephyr.h>
 #include <zmk/event_manager.h>
 
-struct layer_state_changed {
-    struct zmk_event_header header;
+struct zmk_layer_state_changed {
     uint8_t layer;
     bool state;
     int64_t timestamp;
 };
 
-ZMK_EVENT_DECLARE(layer_state_changed);
+ZMK_EVENT_DECLARE(zmk_layer_state_changed);
 
-static inline struct layer_state_changed *create_layer_state_changed(uint8_t layer, bool state) {
-    struct layer_state_changed *ev = new_layer_state_changed();
-    ev->layer = layer;
-    ev->state = state;
-    ev->timestamp = k_uptime_get();
-
-    return ev;
+static inline struct zmk_layer_state_changed_event *create_layer_state_changed(uint8_t layer,
+                                                                               bool state) {
+    return new_zmk_layer_state_changed((struct zmk_layer_state_changed){
+        .layer = layer, .state = state, .timestamp = k_uptime_get()});
 }