feat(docs): Docusaurus multi-versioning, Developer Portal starter kit (#34271)

Co-authored-by: Claude <noreply@anthropic.com>

docs/src/theme/DocVersionBanner/index.js

@@ -0,0 +1,121 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import React, { useState, useEffect } from 'react';
+import DocVersionBanner from '@theme-original/DocVersionBanner';
+import {
+  useActivePlugin,
+  useDocsVersion,
+  useVersions,
+} from '@docusaurus/plugin-content-docs/client';
+import { useLocation } from '@docusaurus/router';
+import { useDocsPreferredVersion } from '@docusaurus/theme-common';
+import { Dropdown } from 'antd';
+import { DownOutlined } from '@ant-design/icons';
+
+import styles from './styles.module.css';
+
+export default function DocVersionBannerWrapper(props) {
+  const activePlugin = useActivePlugin();
+  const { pathname } = useLocation();
+  const pluginId = activePlugin?.pluginId;
+  const [versionedPath, setVersionedPath] = useState('');
+
+  // Only show version selector for tutorials
+  // Main docs, components, and developer_portal use the DocVersionBadge component instead
+  const isVersioned = pluginId && ['tutorials'].includes(pluginId);
+
+  const { preferredVersion } = useDocsPreferredVersion(pluginId);
+  const versions = useVersions(pluginId);
+  const version = useDocsVersion();
+
+  // Early return if required data is not available
+  if (!isVersioned || !versions || !version) {
+    return <DocVersionBanner {...props} />;
+  }
+
+  // Extract the current page path relative to the version
+  useEffect(() => {
+    if (!pathname || !version || !pluginId) return;
+
+    let relativePath = '';
+
+    // Handle different version path patterns
+    if (pathname.includes(`/${pluginId}/`)) {
+      // Extract the part after the version
+      // Example: /components/1.1.0/ui-components/button -> /ui-components/button
+      const parts = pathname.split(`/${pluginId}/`);
+      if (parts.length > 1) {
+        const afterPluginId = parts[1];
+        // Find where the version part ends
+        const versionParts = afterPluginId.split('/');
+        if (versionParts.length > 1) {
+          // Remove the version part and join the rest
+          relativePath = '/' + versionParts.slice(1).join('/');
+        }
+      }
+    }
+
+    setVersionedPath(relativePath);
+  }, [pathname, version, pluginId]);
+
+  // Create dropdown items for version selection
+  const items = versions.map(v => {
+    // Construct the URL for this version, preserving the current page
+    // v.path is the version-specific path like "1.0.0" or "next"
+    let versionUrl = v.path;
+
+    if (versionedPath) {
+      // Construct the full URL with the version and the current page path
+      versionUrl = v.path + versionedPath;
+    }
+
+    return {
+      key: v.name,
+      label: (
+        <a href={versionUrl}>
+          {v.label}
+          {v.name === version.name && ' (current)'}
+          {v.name === preferredVersion?.name && ' (preferred)'}
+        </a>
+      ),
+    };
+  });
+
+  return (
+    <>
+      <DocVersionBanner {...props} />
+      {isVersioned && (
+        <div className={styles.versionBanner}>
+          <div className={styles.versionContainer}>
+            <span className={styles.versionLabel}>Version:</span>
+            <Dropdown menu={{ items }} trigger={['click']}>
+              <a
+                onClick={e => e.preventDefault()}
+                className={styles.versionSelector}
+              >
+                {version.label} <DownOutlined />
+              </a>
+            </Dropdown>
+          </div>
+        </div>
+      )}
+    </>
+  );
+}

docs/src/theme/DocVersionBanner/styles.module.css

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+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+.versionBanner {
+  background-color: var(--ifm-color-emphasis-100);
+  padding: 0.5rem 1rem;
+  margin-bottom: 1rem;
+  border-bottom: 1px solid var(--ifm-color-emphasis-200);
+}
+
+.versionContainer {
+  display: flex;
+  align-items: center;
+  max-width: var(--ifm-container-width);
+  margin: 0 auto;
+  padding: 0 var(--ifm-spacing-horizontal);
+}
+
+.versionLabel {
+  font-weight: bold;
+  margin-right: 0.5rem;
+}
+
+.versionSelector {
+  cursor: pointer;
+  color: var(--ifm-color-primary);
+  font-weight: 500;
+}
+
+.versionSelector:hover {
+  text-decoration: none;
+  color: var(--ifm-color-primary-darker);
+}