feat: 新增 Demo 站点

docs/demos/promiseify-post-message/Inner.vue

@@ -0,0 +1,40 @@
+<template>
+  <div class="inner">
+    <h2>Inner</h2>
+    <button @click="getUserToken('123456')">getUserToken: {{ userToken }}</button>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref } from 'vue'
+import { registerSdk, postMessage } from './sdk'
+
+registerSdk()
+
+const userToken = ref('')
+
+async function getUserToken(userId: string) {
+  const token = await postMessage({
+    namespace: 'user',
+    action: 'getUserToken',
+    payload: {
+      userId
+    }
+  })
+
+  if (token) {
+    userToken.value = token as string
+  }
+}
+</script>
+
+<style scoped>
+/* 隐藏掉窄屏时 fixd 在顶部的 Return to top */
+:global(.VPLocalNav) {
+  display: none;
+}
+
+.inner {
+  padding: 25px;
+}
+</style>