wip: more refactor

packages/core/src/util.rs

@@ -1,5 +1,44 @@
+use std::{cell::RefCell, rc::Rc};
+
 use crate::innerlude::*;
 
+// We actually allocate the properties for components in their parent's properties
+// We then expose a handle to use those props for render in the form of "OpaqueComponent"
+pub type OpaqueComponent = dyn for<'b> Fn(&'b Scope) -> VNode<'b>;
+
+#[derive(PartialEq, Debug, Clone, Default)]
+pub struct EventQueue(pub Rc<RefCell<Vec<HeightMarker>>>);
+
+impl EventQueue {
+    pub fn new_channel(&self, height: u32, idx: ScopeIdx) -> Rc<dyn Fn()> {
+        let inner = self.clone();
+        let marker = HeightMarker { height, idx };
+        Rc::new(move || {
+            log::debug!("channel updated {:#?}", marker);
+            inner.0.as_ref().borrow_mut().push(marker)
+        })
+    }
+}
+
+/// A helper type that lets scopes be ordered by their height
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct HeightMarker {
+    pub idx: ScopeIdx,
+    pub height: u32,
+}
+
+impl Ord for HeightMarker {
+    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
+        self.height.cmp(&other.height)
+    }
+}
+
+impl PartialOrd for HeightMarker {
+    fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
+        Some(self.cmp(other))
+    }
+}
+
 pub struct DebugDom {
     counter: u64,
 }