Feature: #109018 - PSR-14 event to modify indexed_search result sets 

Description 

A new PSR-14 event \TYPO3\CMS\IndexedSearch\Event\AfterSearchResultSetsAreGeneratedEvent has been introduced to modify search result sets in SearchController .

The event is dispatched in searchAction() after all the result sets have been built. Event listeners can manipulate complete result sets, including pagination, rows, section data, and category metadata.

The event has the following methods:

• getResultSets(): Returns all the result sets from the current search.
• setResultSets(array $resultSets): Replaces the result sets.
• getSearchData(): Returns the search configuration array.
• getSearchWords(): Returns an array of search words.
• getView(): Returns the view instance.
• getRequest(): Returns the current server request.

Example 

The following example replaces every result set pagination with SlidingWindowPagination :

<?php

declare(strict_types=1);

namespace MyVendor\MyExtension\EventListener;

use TYPO3\CMS\Core\Attribute\AsEventListener;
use TYPO3\CMS\Core\Pagination\SimplePagination;
use TYPO3\CMS\Core\Pagination\SlidingWindowPagination;
use TYPO3\CMS\IndexedSearch\Event\AfterSearchResultSetsAreGeneratedEvent;

#[AsEventListener(identifier: 'my-extension/modify-search-result-sets')]
final readonly class ModifySearchPaginationListener
{
    public function __invoke(
        AfterSearchResultSetsAreGeneratedEvent $event
    ): void {
        $resultSets = $event->getResultSets();

        foreach ($resultSets as $key => $resultSet) {
            if (($resultSet['pagination'] ?? null)
                instanceof SimplePagination
            ) {
                $resultSets[$key]['pagination']
                    = new SlidingWindowPagination(
                        $resultSet['pagination']->getPaginator(),
                        5
                    );
            }
        }

        $event->setResultSets($resultSets);
    }
}

Impact 

This event allows search result sets to be modified in a single listener call. It enables custom pagination strategies, as well as advanced search result transformations.