fet(client/jsx): basic support for JSX render notes

apps/client/src/services/render.ts

@@ -1,6 +1,10 @@
-import server from "./server.js";
+import { h, VNode } from "preact";
-import bundleService, { type Bundle } from "./bundle.js";
+
 import type FNote from "../entities/fnote.js";
+import { renderReactWidgetAtElement } from "../widgets/react/react_utils.jsx";
+import bundleService, { type Bundle } from "./bundle.js";
+import froca from "./froca.js";
+import server from "./server.js";
 
 async function render(note: FNote, $el: JQuery<HTMLElement>) {
     const relations = note.getRelations("renderNote");
@@ -17,12 +21,34 @@ async function render(note: FNote, $el: JQuery<HTMLElement>) {
         $scriptContainer.append(bundle.html);
 
         // async so that scripts cannot block trilium execution
-        bundleService.executeBundle(bundle, note, $scriptContainer);
+        bundleService.executeBundle(bundle, note, $scriptContainer).then(result => {
+            // Render JSX
+            if (bundle.html === "") {
+                renderIfJsx(bundle, result, $el);
+            }
+        });
     }
 
     return renderNoteIds.length > 0;
 }
 
+async function renderIfJsx(bundle: Bundle, result: unknown, $el: JQuery<HTMLElement>) {
+    // Ensure the root script note is actually a JSX.
+    const rootScriptNoteId = await froca.getNote(bundle.noteId);
+    if (rootScriptNoteId?.mime !== "text/jsx") return;
+
+    // Ensure the output is a valid el.
+    if (typeof result !== "function") return;
+
+    // Obtain the parent component.
+    const closestComponent = glob.getComponentByEl($el.closest(".component")[0]);
+    if (!closestComponent) return;
+
+    // Render the element.
+    const el = h(result as () => VNode, {});
+    renderReactWidgetAtElement(closestComponent, el, $el[0]);
+}
+
 export default {
     render
 };