New /my-liked-packages page (behind experimental).

app/lib/frontend/handlers/account.dart

@@ -3,8 +3,11 @@
 // BSD-style license that can be found in the LICENSE file.
 
 import 'package:_pub_shared/data/account_api.dart';
+import 'package:_pub_shared/search/search_form.dart';
+import 'package:_pub_shared/search/tags.dart';
 import 'package:clock/clock.dart';
 import 'package:pub_dev/frontend/handlers/cache_control.dart';
+import 'package:pub_dev/package/search_adapter.dart';
 import 'package:shelf/shelf.dart' as shelf;
 
 import '../../account/backend.dart';
@@ -311,7 +314,7 @@ Future<shelf.Response> accountPackagesPageHandler(shelf.Request request) async {
   return htmlResponse(html);
 }
 
-/// Handles requests for GET my-liked-packages
+/// Handles requests for GET /my-liked-packages
 Future<shelf.Response> accountMyLikedPackagesPageHandler(
   shelf.Request request,
 ) async {
@@ -323,11 +326,49 @@ Future<shelf.Response> accountMyLikedPackagesPageHandler(
   final user = (await accountBackend.lookupUserById(
     requestContext.authenticatedUserId!,
   ))!;
+
+  // Redirect in case of empty search query.
+  if (request.requestedUri.query == 'q=') {
+    return redirectResponse(request.requestedUri.path);
+  }
+
+  if (requestContext.experimentalFlags.useMyLikedSearch) {
+    // redirect to the search page when any search or pagination is present
+    final searchForm = SearchForm.parse(request.requestedUri.queryParameters);
+    if (searchForm.isNotEmpty) {
+      final redirectForm = searchForm.addRequiredTagIfAbsent(
+        AccountTag.isLikedByMe,
+      );
+      return redirectResponse(
+        redirectForm.toSearchLink(page: searchForm.currentPage),
+      );
+    }
+
+    final appliedSearchForm = SearchForm().toggleRequiredTag(
+      AccountTag.isLikedByMe,
+    );
+    final searchResult = await searchAdapter.search(
+      appliedSearchForm,
+      // Do not apply rate limit here.
+      rateLimitKey: null,
+    );
+    final html = renderMyLikedPackagesPage(
+      user: user,
+      userSessionData: requestContext.sessionData!,
+      likes: null,
+      searchForm: appliedSearchForm,
+      searchResult: searchResult,
+    );
+    return htmlResponse(html);
+  }
+
   final likes = await likeBackend.listPackageLikes(user.userId);
   final html = renderMyLikedPackagesPage(
     user: user,
     userSessionData: requestContext.sessionData!,
     likes: likes,
+    searchForm: null,
+    searchResult: null,
   );
   return htmlResponse(html);
 }

app/lib/frontend/handlers/experimental.dart

@@ -10,11 +10,14 @@ typedef PublicFlag = ({String name, String description});
 
 const _publicFlags = <PublicFlag>{
   (name: 'example', description: 'Short description'),
+  (
+    name: 'my-liked-search',
+    description: 'New "My liked packages" page and search.',
+  ),
 };
 
 final _allFlags = <String>{
   'dark-as-default',
-  'my-liked-search',
   ..._publicFlags.map((x) => x.name),
 };
 

app/lib/frontend/templates/admin.dart

@@ -3,6 +3,9 @@
 // BSD-style license that can be found in the LICENSE file.
 
 import 'package:_pub_shared/data/page_data.dart';
+import 'package:_pub_shared/search/search_form.dart';
+import 'package:pub_dev/frontend/templates/listing.dart';
+import 'package:pub_dev/package/search_adapter.dart';
 
 import '../../account/models.dart' show LikeData, User, SessionData;
 import '../../audit/models.dart';
@@ -97,16 +100,38 @@ String renderAccountPackagesPage({
 String renderMyLikedPackagesPage({
   required User user,
   required SessionData userSessionData,
-  required List<LikeData> likes,
+  required List<LikeData>? likes,
+  required SearchForm? searchForm,
+  required SearchResultPage? searchResult,
 }) {
-  final resultCount = likes.isNotEmpty
-      ? d.p(
-          text:
-              'You like ${likes.length} ${likes.length == 1 ? 'package' : 'packages'}.',
-        )
-      : d.p(text: 'You have not liked any packages yet.');
-
-  final tabContent = d.fragment([resultCount, likedPackageListNode(likes)]);
+  late d.Node tabContent;
+  if (likes != null) {
+    final resultCount = likes.isNotEmpty
+        ? d.p(
+            text:
+                'You like ${likes.length} ${likes.length == 1 ? 'package' : 'packages'}.',
+          )
+        : d.p(text: 'You have not liked any packages yet.');
+
+    tabContent = d.fragment([resultCount, likedPackageListNode(likes)]);
+  } else {
+    final infoNode = listingInfo(
+      searchForm: searchForm!,
+      totalCount: searchResult!.totalCount,
+      title: 'My liked packages',
+      messageFromBackend: searchResult.errorMessage,
+    );
+    final listNode = packageList(searchResult);
+    final pagination = searchResult.hasHit
+        ? paginationNode(PageLinks(searchForm, searchResult.totalCount))
+        : null;
+    tabContent = d.fragment([
+      infoNode,
+      listNode,
+      if (pagination != null) pagination,
+    ]);
+  }
+
   final content = renderDetailPage(
     headerNode: _accountDetailHeader(user, userSessionData),
     tabs: [
@@ -129,6 +154,7 @@ String renderMyLikedPackagesPage({
     noIndex: true,
     mainClasses: [wideHeaderDetailPageClassName],
     pageData: PageData(sessionAware: true),
+    searchForm: searchForm,
   );
 }
 

app/lib/frontend/templates/layout.dart

@@ -35,8 +35,8 @@ enum PageType {
 
 /// Whether to show a wide/tall search banner at the top of the page,
 /// otherwise only show a top-navigation search input.
-bool showSearchBanner(PageType type) =>
-    type != PageType.account &&
+bool showSearchBanner(PageType type, SearchForm? searchForm) =>
+    (type != PageType.account || searchForm != null) &&
     type != PageType.package &&
     type != PageType.standalone;
 
@@ -99,7 +99,11 @@ String renderLayoutPage(
         ? null
         : pageDataJsonCodec.encode(pageData.toJson()),
     bodyClasses: bodyClasses,
-    siteHeader: siteHeaderNode(pageType: type, userSession: session),
+    siteHeader: siteHeaderNode(
+      pageType: type,
+      userSession: session,
+      searchForm: searchForm,
+    ),
     announcementBanner: announcementBannerHtml == null
         ? null
         : d.unsafeRawHtml(announcementBannerHtml),
@@ -108,7 +112,7 @@ String renderLayoutPage(
         : hex
               .encode(sha1.convert(utf8.encode(announcementBannerHtml)).bytes)
               .substring(0, 16),
-    searchBanner: showSearchBanner(type)
+    searchBanner: showSearchBanner(type, searchForm)
         ? _renderSearchBanner(type: type, searchForm: searchForm)
         : null,
     isLanding: type == PageType.landing,

app/lib/frontend/templates/views/shared/site_header.dart

@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+import 'package:_pub_shared/search/search_form.dart';
+
 import '../../../../account/models.dart' show SessionData;
 import '../../../../shared/urls.dart' as urls;
 import '../../../dom/dom.dart' as d;
@@ -10,7 +12,11 @@ import '../../_consts.dart';
 import '../../layout.dart' show PageType, showSearchBanner;
 
 /// Creates the site header and navigation node.
-d.Node siteHeaderNode({required PageType pageType, SessionData? userSession}) {
+d.Node siteHeaderNode({
+  required PageType pageType,
+  required SessionData? userSession,
+  required SearchForm? searchForm,
+}) {
   return d.div(
     classes: ['site-header'],
     children: [
@@ -31,7 +37,7 @@ d.Node siteHeaderNode({required PageType pageType, SessionData? userSession}) {
         ),
       d.div(classes: ['site-header-space']),
       d.div(classes: ['site-header-mask']),
-      if (!showSearchBanner(pageType))
+      if (!showSearchBanner(pageType, searchForm))
         d.div(
           classes: ['site-header-search'],
           child: d.form(

app/test/frontend/templates_test.dart

@@ -880,6 +880,8 @@ void main() {
               LikeData(package: 'super_package', created: liked1),
               LikeData(package: 'another_package', created: liked2),
             ],
+            searchForm: null,
+            searchResult: null,
           );
           expectGoldenFile(
             html,

pkg/pub_integration/test/like_test.dart

@@ -88,6 +88,11 @@ void main() {
         await Future.delayed(Duration(milliseconds: 200));
         expect(await getCountLabels(), ['1', '1', '']);
 
+        // checking /my-liked-packages - with the one liked package
+        await page.gotoOrigin('/my-liked-packages');
+        final info = await listingPageInfo(page);
+        expect(info.packageNames.toSet(), {'test_pkg'});
+
         // checking search with my-liked packages - with the one liked package
         await page.gotoOrigin('/packages?q=pkg+is:liked-by-me');
         final info2 = await listingPageInfo(page);