Synchronous prevent default (#2792)

* add prevent default methods to the event

* sync prevent default almost working

* sync prevent default working

* Move event handling into the runtime

* update core tests

* restore desktop file dialog

* implement prevent default on web

* add a hint about the new prevent default method

* fix web prevent default

* Fix CTRL+click on links

* fix values memorize in place test

* Fix a few more tests

* Add a playwright test for sync prevent default

* Fix core doc tests

* create a deprecated VirtualDom::handle_event

* fix macos imports in desktop

* Fix onmounted event

* Fix liveview support

* switch to RefCell for metadata

* Remove println

* remove prevent default attribute

* remove web specific link behavior

* Fix liveview links

* more liveview fixes for link

* Fix merge conflicts

* Fix clippy

* use the new prevent default in the file upload example

packages/core/README.md

@@ -12,7 +12,10 @@ let real_dom = SomeRenderer::new();
 
 loop {
     tokio::select! {
-        evt = real_dom.event() => vdom.handle_event("onclick", evt, ElementId(0), true),
+        evt = real_dom.event() => {
+            let evt = Event::new(evt, true);
+            vdom.runtime().handle_event("onclick", evt, ElementId(0))
+        },
         _ = vdom.wait_for_work() => {}
     }
     vdom.render_immediate(&mut real_dom.apply())