feat: allow passing props and children/slots to defineClientComponent (#2198)

Co-authored-by: Divyansh Singh <40380293+brc-dd@users.noreply.github.com>

docs/guide/ssr-compat.md

@@ -81,4 +81,39 @@ const ClientComp = defineClientComponent(() => {
 </template>
 ```
 
+You can also pass props/children/slots to the target component:
+
+```vue
+<script setup>
+import { ref } from 'vue'
+import { defineClientComponent } from 'vitepress'
+
+const clientCompRef = ref(null)
+const ClientComp = defineClientComponent(
+  () => import('component-that-access-window-on-import'),
+
+  // args are passed to h() - https://vuejs.org/api/render-function.html#h
+  [
+    {
+      ref: clientCompRef
+    },
+    {
+      default: () => 'default slot',
+      foo: () => h('div', 'foo'),
+      bar: () => [h('span', 'one'), h('span', 'two')]
+    }
+  ],
+
+  // callback after the component is loaded, can be async
+  () => {
+    console.log(clientCompRef.value)
+  }
+)
+</script>
+
+<template>
+  <ClientComp />
+</template>
+```
+
 The target component will only be imported in the mounted hook of the wrapper component.

src/client/app/utils.ts

@@ -1,5 +1,10 @@
 import { siteDataRef } from './data'
-import { inBrowser, EXTERNAL_URL_RE, sanitizeFileName } from '../shared'
+import {
+  inBrowser,
+  EXTERNAL_URL_RE,
+  sanitizeFileName,
+  type Awaitable
+} from '../shared'
 import {
   h,
   onMounted,
@@ -77,7 +82,11 @@ export function onContentUpdated(fn: () => any) {
   })
 }
 
-export function defineClientComponent(loader: AsyncComponentLoader) {
+export function defineClientComponent(
+  loader: AsyncComponentLoader,
+  args?: any[],
+  cb?: () => Awaitable<void>
+) {
   return {
     setup() {
       const comp = shallowRef()
@@ -88,8 +97,9 @@ export function defineClientComponent(loader: AsyncComponentLoader) {
           res = res.default
         }
         comp.value = res
+        await cb?.()
       })
-      return () => (comp.value ? h(comp.value) : null)
+      return () => (comp.value ? h(comp.value, ...(args ?? [])) : null)
     }
   }
 }