seat: add focus history

src/utils/linkedlist.rs

@@ -97,7 +97,6 @@ impl<T> LinkedList<T> {
         self.root.append_existing(t)
     }
 
-    #[expect(dead_code)]
     pub fn rotate_last(&self, t: &NodeRef<T>) {
         unsafe {
             let root = self.root.data.as_ref();

src/utils/rc_eq.rs

@@ -1,9 +1,16 @@
-use std::{ops::Deref, rc::Rc};
+use std::{
+    ops::Deref,
+    rc::{Rc, Weak},
+};
 
 pub fn rc_eq<T: ?Sized>(a: &Rc<T>, b: &Rc<T>) -> bool {
     Rc::as_ptr(a) as *const u8 == Rc::as_ptr(b) as *const u8
 }
 
+pub fn rc_weak_eq<T: ?Sized>(a: &Rc<T>, b: &Weak<T>) -> bool {
+    Rc::as_ptr(a) as *const u8 == b.as_ptr() as *const u8
+}
+
 #[derive(Default)]
 pub struct RcEq<T>(pub Rc<T>);