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<?php
namespace Barn2\Plugin\Document_Library_Pro;
use Barn2\Plugin\Document_Library_Pro\Util\Options,
Barn2\Plugin\Document_Library_Pro\Dependencies\Lib\Registerable,
Barn2\Plugin\Document_Library_Pro\Dependencies\Lib\Service;
defined( 'ABSPATH' ) || exit;
/**
* Handle the DLP Search.
*
* @package Barn2/document-library-pro
* @author Barn2 Plugins <info@barn2.com>
* @license GPL-3.0
* @copyright Barn2 Media Ltd
*/
class Search_Handler implements Registerable, Service {
/**
* {@inheritdoc}
*/
public function register() {
add_action( 'template_redirect', [ $this, 'handle_search_redirect' ] );
add_filter( 'the_content', [ $this, 'filter_search_page_content' ], 999, 1 );
add_filter( 'wp_get_nav_menu_items', [ $this, 'protect_nav_menus' ], 10, 1 );
add_filter( 'wp_list_pages_excludes', [ $this, 'protect_list_pages' ], 10, 1 );
}
/**
* Redirect to the search results page.
*/
public function handle_search_redirect() {
$search_query = filter_input( INPUT_GET, 'dlp_search', FILTER_SANITIZE_SPECIAL_CHARS );
if ( is_null( $search_query ) || $search_query === false ) {
return;
}
$search_results_page_id = Options::get_search_page_option();
if ( $search_results_page_id && ! is_page( (int) $search_results_page_id ) ) {
wp_safe_redirect( add_query_arg( 'dlp_search', $search_query, get_permalink( $search_results_page_id ) ), 301 );
exit;
}
}
/**
* Filter the_content to display search results.
*
* @param string $content
* @return string
*/
public function filter_search_page_content( $content ) {
$search_results_page_id = get_option( 'dlp_search_page' );
$search_query = filter_input( INPUT_GET, 'dlp_search', FILTER_SANITIZE_SPECIAL_CHARS );
if ( ! $search_results_page_id || ! is_page( (int) $search_results_page_id ) || ! in_the_loop() || ! is_main_query() ) {
return $content;
}
wp_enqueue_style( 'dlp-search-box' );
remove_filter( 'the_content', [ $this, 'filter_search_page_content' ], 999 );
$content .= self::get_search_box_html( 'single-content', esc_html__( 'Search documents...', 'document-library-pro' ), esc_html__( 'Search', 'document-library-pro' ) );
if ( $search_query ) {
$content .= '<hr>' . dlp_get_doc_library(
array_merge(
/**
* Add custom document library arguments to the global search results page.
*
* @param array $custom_args Array of custom arguments for the document library.
*/
apply_filters( 'document_library_pro_global_search_custom_args', [] ),
[
'folders' => false,
'search_term' => $search_query,
'search_box' => false,
]
)
);
} elseif ( ! is_null( $search_query ) ) {
$content .= esc_html__( 'No matching documents.', 'document-library-pro' );
}
return $content;
}
/**
* Remove the search results page from list_pages
*
* @param array $excludes
* @return array
*/
public function protect_list_pages( $excludes ) {
$search_results_page_id = Options::get_search_page_option();
if ( $search_results_page_id === false ) {
return $excludes;
}
return array_unique( array_merge( $excludes, [ (int) $search_results_page_id ] ) );
}
/**
* Remove the search results page from the navigation menus.
*
* @param array $menu_items
* @return array
*/
public function protect_nav_menus( $menu_items ) {
$search_results_page_id = Options::get_search_page_option();
if ( $search_results_page_id === false ) {
return $menu_items;
}
$filtered_menu_items = array_filter(
$menu_items,
function ( $menu_item ) use ( $search_results_page_id ) {
return $menu_item->object_id !== $search_results_page_id;
}
);
return array_values( $filtered_menu_items );
}
/**
* Outputs a global search box.
*
* @param string $view
* @param string $placeholder
* @param string $button_text
*/
public static function get_search_box_html( $view, $placeholder, $button_text ) {
$search_query = filter_input( INPUT_GET, 'dlp_search', FILTER_SANITIZE_SPECIAL_CHARS ) ?? '';
ob_start();
?>
<div class="dlp-document-search-container">
<form role="search" method="get" class="dlp-document-search dlp-<?php echo esc_attr( $view ); ?>" action="<?php echo esc_attr( site_url() ); ?>">
<label class="screen-reader-text" for="dlp-document-search-field"><?php esc_html_e( 'Document Search', 'document-library-pro' ); ?></label>
<input type="search" class="dlp-document-search-field" placeholder="<?php echo esc_attr( $placeholder ); ?>" value="<?php echo esc_attr( $search_query ); ?>" name="dlp_search">
<button type="submit" class="button" value="Search"><?php echo esc_html( $button_text ); ?></button>
</form>
</div>
<?php
return ob_get_clean();
}
}