web: add tablet rendering, listen to window resize events.

web/src/state.rs

@@ -19,6 +19,7 @@ pub fn init(url: Url, orders: &mut impl Orders<Msg>) -> Model {
     } else {
         orders.notify(subs::UrlRequested::new(url));
     };
+    orders.stream(streams::window_event(Ev::Resize, |_| Msg::OnResize));
     orders.subscribe(on_url_changed);
 
     Model {
@@ -127,6 +128,7 @@ pub fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
         Msg::Reload => {
             orders.perform_cmd(async move { on_url_changed(subs::UrlChanged(Url::current())) });
         }
+        Msg::OnResize => (),
 
         Msg::SearchRequest {
             query,
@@ -357,6 +359,8 @@ pub enum Msg {
     Noop,
     // Tell the client to refresh its state
     Reload,
+    // Window has changed size
+    OnResize,
     // Tell the server to update state
     RefreshStart,
     RefreshDone(Option<FetchError>),