♻️ Major code restructuring

src/core/action/all.rs

@@ -0,0 +1,34 @@
+use crate::core::action::{Action, ActionsList};
+use crate::{Handle, LazyStatic};
+
+use std::collections::HashMap;
+use std::sync::RwLock;
+
+pub type KeyAction = (Handle, Option<Handle>, Option<String>);
+
+// Registered actions.
+static ACTIONS: LazyStatic<RwLock<HashMap<KeyAction, ActionsList>>> =
+    LazyStatic::new(|| RwLock::new(HashMap::new()));
+
+pub fn add_action(action: Action) {
+    let mut actions = ACTIONS.write().unwrap();
+    let key_action = (
+        action.handle(),
+        action.referer_handle(),
+        action.referer_id(),
+    );
+    if let Some(list) = actions.get_mut(&key_action) {
+        list.add(action);
+    } else {
+        actions.insert(key_action, ActionsList::new(action));
+    }
+}
+
+pub fn dispatch_actions<B, F>(key_action: KeyAction, f: F)
+where
+    F: FnMut(&Action) -> B,
+{
+    if let Some(list) = ACTIONS.read().unwrap().get(&key_action) {
+        list.iter_map(f)
+    }
+}