Convert use_eval to use send/recv system (#1080)

* progress: reworked

don't run this, it'll kill your web browser

* feat: use_eval but with comms

* revision: async recv & recv_sync

* revision: use_eval

* revision: standard eval interface

* revision: use serde_json::Value instead of JsValue

* revision: docs

* revision: error message

* create: desktop eval (wip)

* fix: desktop eval

* revision: wrap use_eval in Rc<RefCell<_>>

* fix: fmt, clippy

* fix: desktop tests

* revision: change to channel system

- fixes clippy errors
- fixes playwright tests

* fix: tests

* fix: eval example

* fix: fmt

* fix: tests, desktop stuff

* fix: tests

* feat: drop handler

* fix: tests

* fix: rustfmt

* revision: web promise/callback system

* fix: recv error

* revision: IntoFuture, functionation

* fix: ci

* revision: playwright web

* remove: unescessary code

* remove dioxus-html from public examples

* prototype-patch

* fix web eval

* fix: rustfmt

* fix: CI

* make use_eval more efficient

* implement eval for liveview as well

* fix playwright tests

* fix clippy

* more clippy fixes

* fix clippy

* fix stack overflow

* fix desktop mock

* fix clippy

---------

Co-authored-by: Evan Almloff <evanalmloff@gmail.com>

packages/desktop/src/lib.rs

@@ -30,7 +30,7 @@ use dioxus_core::*;
 use dioxus_html::MountedData;
 use dioxus_html::{native_bind::NativeFileEngine, FormData, HtmlEvent};
 use element::DesktopElement;
-pub use eval::{use_eval, EvalResult};
+use eval::init_eval;
 use futures_util::{pin_mut, FutureExt};
 use shortcut::ShortcutRegistry;
 pub use shortcut::{use_global_shortcut, ShortcutHandle, ShortcutId, ShortcutRegistryError};
@@ -204,15 +204,17 @@ pub fn launch_with_props<P: 'static>(root: Component<P>, props: P, cfg: Config)
             },
 
             Event::NewEvents(StartCause::Init) => {
-                //
                 let props = props.take().unwrap();
                 let cfg = cfg.take().unwrap();
 
+                // Create a dom
+                let dom = VirtualDom::new_with_props(root, props);
+
                 let handler = create_new_window(
                     cfg,
                     event_loop,
                     &proxy,
-                    VirtualDom::new_with_props(root, props),
+                    dom,
                     &queue,
                     &event_handlers,
                     shortcut_manager.clone(),
@@ -389,7 +391,11 @@ fn create_new_window(
         shortcut_manager,
     ));
 
-    dom.base_scope().provide_context(desktop_context.clone());
+    let cx = dom.base_scope();
+    cx.provide_context(desktop_context.clone());
+
+    // Init eval
+    init_eval(cx);
 
     WebviewHandler {
         // We want to poll the virtualdom and the event loop at the same time, so the waker will be connected to both