docs: add vuejsde conf banner may (#2208)

packages/docs/.vitepress/theme/components/VuejsdeConfBanner.vue

@@ -0,0 +1,91 @@
+<template>
+  <div class="banner banner-vuejsconf" v-if="isVisible">
+    <a href="https://conf.vuejs.de/?utm_source=vuejs&utm_medium=referral&utm_campaign=banner-placement&utm_content=banner"
+      target="_blank">
+      <picture>
+        <source media="(min-width:1200px)" srcset="/vuejsde-conf/vuejsdeconf_banner_large.png" />
+        <source media="(min-width:920px)" srcset="/vuejsde-conf/vuejsdeconf_banner_medium.png" />
+        <img src="/vuejsde-conf/vuejsdeconf_banner_small.png" alt="" />
+      </picture>
+    </a>
+    <div class="close-btn" @click.stop.prevent="closeBanner">
+      <span class="close">&times;</span>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+
+const isVisible = ref(false)
+
+const nameStorage = 'VUEJSDECONF-BANNER-MAY-2024'
+
+const resetLayoutTopHeight = () => {
+  document.documentElement.classList.add('banner-dismissed')
+}
+
+const closeBanner = () => {
+  // Hide the banner
+  isVisible.value = false
+  // Save action in the local storage
+  localStorage.setItem(nameStorage, String(true))
+  resetLayoutTopHeight()
+}
+
+onMounted(() => {
+  isVisible.value = !localStorage.getItem(nameStorage)
+
+  if (!isVisible.value) {
+    resetLayoutTopHeight()
+  }
+})
+</script>
+<style>
+html:not(.banner-dismissed) {
+  --vp-layout-top-height: 60px;
+}
+</style>
+<style scoped>
+.banner {
+  position: fixed;
+  z-index: var(--vp-z-index-layout-top);
+  box-sizing: border-box;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: var(--vp-layout-top-height);
+  line-height: 0;
+  text-align: center;
+  font-size: 12px;
+  font-weight: 600;
+  color: #fff;
+}
+
+.banner-dismissed .banner {
+  display: none;
+}
+
+a {
+  text-decoration: underline;
+}
+
+.banner-vuejsconf {
+  background: linear-gradient(90deg, #fff 50%, #43b883 50%);
+}
+
+.banner-vuejsconf a {
+  display: inline-block;
+  margin: 0 auto;
+}
+
+.banner-vuejsconf .close-btn {
+  top: 10px;
+  right: 10px;
+  z-index: 99;
+  position: absolute;
+  border-radius: 50%;
+  padding: 10px;
+  cursor: pointer;
+}
+</style>

packages/docs/.vitepress/theme/index.ts

@@ -8,6 +8,7 @@ import './styles/vars.css'
 import './styles/sponsors.css'
 import VueSchoolLink from './components/VueSchoolLink.vue'
 import VueMasteryLogoLink from './components/VueMasteryLogoLink.vue'
+import VuejsdeConfBanner from './components/VuejsdeConfBanner.vue'
 import status from '../translation-status.json'
 
 const i18nLabels = {
@@ -21,6 +22,7 @@ const theme: Theme = {
       // 'home-features-after': () => h(HomeSponsors),
       'aside-ads-before': () => h(AsideSponsors),
       'doc-before': () => h(TranslationStatus, { status, i18nLabels }),
+      'layout-top': () => h(VuejsdeConfBanner)
     })
   },