Fixed the multiple window closing issue, where the two multiwindow examples weren't working. (#3499)

* fixed window when multiple windows not closing

* fixed window when multiple windows not closing

* fixed accidental includes

* polished

* fix last window closing hiding app and rc hardcount

* find the suspect strong count holders and fix them

* Use the proper type alias

* fmt

---------

Co-authored-by: Jonathan Kelley <jkelleyrtp@gmail.com>

packages/desktop/src/document.rs

@@ -1,11 +1,11 @@
+use crate::{query::Query, DesktopContext, WeakDesktopContext};
 use dioxus_core::prelude::queue_effect;
 use dioxus_document::{
     create_element_in_head, Document, Eval, EvalError, Evaluator, LinkProps, MetaProps,
     ScriptProps, StyleProps,
 };
-use generational_box::{AnyStorage, GenerationalBox, UnsyncStorage};
 
-use crate::{query::Query, DesktopContext};
+use generational_box::{AnyStorage, GenerationalBox, UnsyncStorage};
 
 /// Code for the Dioxus channel used to communicate between the dioxus and javascript code
 pub const NATIVE_EVAL_JS: &str = include_str!("./js/native_eval.js");
@@ -13,22 +13,30 @@ pub const NATIVE_EVAL_JS: &str = include_str!("./js/native_eval.js");
 /// Represents the desktop-target's provider of evaluators.
 #[derive(Clone)]
 pub struct DesktopDocument {
-    pub(crate) desktop_ctx: DesktopContext,
+    pub(crate) desktop_ctx: WeakDesktopContext,
 }
 
 impl DesktopDocument {
     pub fn new(desktop_ctx: DesktopContext) -> Self {
+        let desktop_ctx = std::rc::Rc::downgrade(&desktop_ctx);
         Self { desktop_ctx }
     }
 }
 
 impl Document for DesktopDocument {
     fn eval(&self, js: String) -> Eval {
-        Eval::new(DesktopEvaluator::create(self.desktop_ctx.clone(), js))
+        Eval::new(DesktopEvaluator::create(
+            self.desktop_ctx
+                .upgrade()
+                .expect("Window to exist when document is alive"),
+            js,
+        ))
     }
 
     fn set_title(&self, title: String) {
-        self.desktop_ctx.window.set_title(&title);
+        if let Some(ctx) = self.desktop_ctx.upgrade() {
+            ctx.set_title(&title);
+        }
     }
 
     /// Create a new meta tag in the head