Fix plugin redraw on split-panel resize

rust/perspective-viewer/src/rust/components/containers/split_panel.rs

@@ -187,6 +187,9 @@ pub struct SplitPanelProps {
     #[prop_or_default]
     pub on_resize: Option<Callback<(i32, i32)>>,
 
+    #[prop_or_default]
+    pub on_resize_finished: Option<Callback<()>>,
+
     #[cfg(test)]
     #[prop_or_default]
     pub weak_link: WeakScope<SplitPanel>,
@@ -273,6 +276,9 @@ impl Component for SplitPanel {
             }
             SplitPanelMsg::StopResizing => {
                 self.resize_state = None;
+                if let Some(cb) = &ctx.props().on_resize_finished {
+                    cb.emit(());
+                }
             }
             SplitPanelMsg::MoveResizing(client_offset) => {
                 if let Some(state) = self.resize_state.as_ref() {

rust/perspective-viewer/src/rust/components/viewer.rs

@@ -16,9 +16,11 @@ use super::status_bar::StatusBar;
 
 use crate::config::*;
 use crate::dragdrop::*;
+use crate::model::*;
 use crate::renderer::*;
-use crate::session::Session;
+use crate::session::*;
 use crate::utils::*;
+use crate::*;
 
 use futures::channel::oneshot::*;
 use std::rc::Rc;
@@ -38,6 +40,8 @@ pub struct PerspectiveViewerProps {
     pub weak_link: WeakScope<PerspectiveViewer>,
 }
 
+derive_session_renderer_model!(PerspectiveViewerProps);
+
 impl PartialEq for PerspectiveViewerProps {
     fn eq(&self, _rhs: &Self) -> bool {
         false
@@ -179,14 +183,14 @@ impl Component for PerspectiveViewer {
     // `JsPerspectiveConfig` - they may need caching as in the JavaScript version.
     fn view(&self, ctx: &Context<Self>) -> Html {
         let settings = ctx.link().callback(|_| Msg::ToggleSettingsInit(None, None));
-        let callback = self.on_dimensions_reset.callback();
         if self.settings_open {
             html! {
                 <>
                     <style>{ &CSS }</style>
                     <SplitPanel
                         id="app_panel"
-                        on_reset={ callback }>
+                        on_reset={ self.on_dimensions_reset.callback() }
+                        on_resize_finished={ ctx.props().render_callback() }>
                         <div id="side_panel" class="column noselect">
                             <PluginSelector
                                 session={ ctx.props().session.clone() }

rust/perspective-viewer/src/rust/model.rs

@@ -18,6 +18,7 @@ use crate::utils::*;
 use std::future::Future;
 use std::pin::Pin;
 use wasm_bindgen::prelude::*;
+use yew::prelude::*;
 
 /// A `SessionRendererModel` is any struct with `session` and `renderer` fields, as
 /// this method is boilerplate but has no other trait to live on currently.  As
@@ -39,6 +40,19 @@ pub trait SessionRendererModel {
         });
     }
 
+    fn render_callback(&self) -> Callback<()> {
+        let session = self.session().clone();
+        let renderer = self.renderer().clone();
+        Callback::from(move |_| {
+            let session = session.clone();
+            let renderer = renderer.clone();
+            drop(promisify_ignore_view_delete(async move {
+                drop(renderer.draw(async { Ok(&session) }).await?);
+                Ok(JsValue::UNDEFINED)
+            }))
+        })
+    }
+
     fn render(&self) {
         let session = self.session().clone();
         let renderer = self.renderer().clone();