fix preload

app/web/src/nova/prod/root.tsx

@@ -241,7 +241,6 @@ export const Root = () => {
             script={{ init_local_effect: base.init_local_effect }}
             on_preload={async ({ urls, opt }) => {
               const load_urls: string[] = [];
-              const loaded = {} as Record<string, any>;
               if (base.cache.urls) {
                 for (const url of urls) {
                   if (!base.cache.urls.has(url)) {

app/web/src/nova/vi/render/global.tsx

@@ -36,6 +36,7 @@ export const ViGlobal = {
   page: {
     cur: { id: "" },
     navs: {} as Record<string, Set<string>>,
+    preload: [] as (() => void)[],
   },
   comp: {
     load: (async () => {
@@ -46,7 +47,7 @@ export const ViGlobal = {
     | undefined
     | ((arg: {
         urls: string[];
-        opt: {
+        opt?: {
           on_load?: (
             pages: {
               id: string;

app/web/src/nova/vi/vi.tsx

@@ -94,27 +94,38 @@ export const Vi: FC<{
   w.isMobile = mode === "mobile";
   w.isDesktop = mode === "desktop";
   w.preload = (_urls: PRELOAD_ARGS["urls"], opt: PRELOAD_ARGS["opt"]) => {
-    if (!vi.page.navs[page_id]) vi.page.navs[page_id] = new Set();
-    const urls = typeof _urls === "string" ? [_urls] : _urls;
-    for (const url of urls) {
-      vi.page.navs[page_id].add(url);
-    }
-    return new Promise<void>((done) => {
-      clearTimeout(nav.timeout);
-      nav.timeout = setTimeout(() => {
     if (vi.on_preload) {
-          vi.on_preload({
+      return new Promise<void>((done) => {
+        if (!vi.page.navs[page_id]) vi.page.navs[page_id] = new Set();
+        const navs = vi.page.navs[page_id];
+        const urls = typeof _urls === "string" ? [_urls] : _urls;
+        let all_done = true;
+        for (const url of urls) {
+          if (!navs.has(url)) {
+            navs.add(url);
+            all_done = false;
+          }
+        }
+        if (!all_done) {
+          vi.page.preload.push(done);
+          vi.on_preload?.({
             urls: Array.from(vi.page.navs[page_id]),
             opt: {
               on_load: (...arg) => {
                 opt?.on_load?.(...arg);
+                for (const done of vi.page.preload) {
                   done();
+                }
+                vi.page.preload = [];
+                vi.render();
               },
             },
           });
+        } else {
+          done();
+        }
+      });
     }
-      }, 100);
-    });
   };
 
   vi.layout = layout;