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<?php
/**
* Jetpack Search: Jetpack_Search_Template_Tags class
*
* @package Jetpack
* @subpackage Jetpack Search
* @since 5.8.0
*/
/**
* Class that has various methods for outputting functionality into a theme that doesn't support widgets.
* Additionally the widget itself makes use of these class.
*
* @since 5.8.0
*/
class Jetpack_Search_Template_Tags {
/**
* Renders all available filters that can be used to filter down search results on the frontend.
*
* @since 5.8.0
*
* @param array $filters The available filters for the current query.
* @param array $post_types An array of post types to make filterable
*/
public static function render_available_filters( $filters = null, $post_types = null ) {
if ( is_null( $filters ) ) {
$filters = Jetpack_Search::instance()->get_filters();
}
if ( is_null( $post_types ) ) {
$post_types = get_post_types( array( 'exclude_from_search' => false ) );
}
/**
* If the post types specified by the widget differ from the default set of searchable post types,
* then we need to track their state.
*/
$active_post_types = array();
if ( Jetpack_Search_Helpers::post_types_differ_searchable( $post_types ) ) {
// get the active filter buckets from the query
$active_buckets = Jetpack_Search::instance()->get_active_filter_buckets();
$post_types_differ_query = Jetpack_Search_Helpers::post_types_differ_query( $post_types );
// remove any post_type filters from display if the current query
// already specifies to match all post types
if ( ! $post_types_differ_query ) {
$active_buckets = array_filter( $active_buckets, array( __CLASS__, 'is_not_post_type_filter' ) );
}
$active_post_types = Jetpack_Search_Helpers::get_active_post_types( $active_buckets );
if ( empty( $active_post_types ) ) {
$active_post_types = $post_types;
}
if ( $post_types_differ_query ) {
$filters = Jetpack_Search_Helpers::ensure_post_types_on_remove_url( $filters, $post_types );
} else {
$filters = Jetpack_Search_Helpers::remove_active_from_post_type_buckets( $filters );
}
} else {
$post_types = array();
}
foreach ( (array) $filters as $filter ) {
if ( 'post_type' == $filter['type'] ) {
self::render_filter( $filter, $post_types );
} else {
self::render_filter( $filter, $active_post_types );
}
}
}
/**
* Renders a single filter that can be applied to the current search.
*
* @since 5.8.0
*
* @param array $filter The filter to render.
* @param array $default_post_types The default post types for this filter.
*/
public static function render_filter( $filter, $default_post_types ) {
if ( empty( $filter ) || empty( $filter['buckets'] ) ) {
return;
}
$query_vars = null;
foreach ( $filter['buckets'] as $item ) {
if ( $item['active'] ) {
$query_vars = array_keys( $item['query_vars'] );
break;
}
}
$clear_url = null;
if ( ! empty( $query_vars ) ) {
$clear_url = Jetpack_Search_Helpers::remove_query_arg( $query_vars );
if ( ! empty( $default_post_types ) ) {
$clear_url = Jetpack_Search_Helpers::add_post_types_to_url( $clear_url, $default_post_types );
}
}
?>
<h4 class="jetpack-search-filters-widget__sub-heading">
<?php echo esc_html( $filter['name'] ); ?>
</h4>
<?php if ( $clear_url ) : ?>
<div class="jetpack-search-filters-widget__clear">
<a href="<?php echo esc_url( $clear_url ); ?>">
<?php esc_html_e( '< Clear Filters', 'jetpack' ); ?>
</a>
</div>
<?php endif; ?>
<ul class="jetpack-search-filters-widget__filter-list">
<?php
foreach ( $filter['buckets'] as $item ) :
$url = ( empty( $item['active'] ) ) ? $item['url'] : $item['remove_url'];
?>
<li>
<label>
<input type="checkbox"<?php checked( ! empty( $item['active'] ) ); ?> disabled="disabled" />
<a href="<?php echo esc_url( $url ); ?>">
<?php
echo esc_html( $item['name'] );
echo ' ';
echo esc_html( sprintf(
'(%s)',
number_format_i18n( absint( $item['count'] ) )
) );
?>
</a>
</label>
</li>
<?php endforeach; ?>
</ul>
<?php
}
/**
* Outputs the search widget's title.
*
* @since 5.8.0
*
* @param string $title The widget's title
* @param string $before_title The HTML tag to display before the title
* @param string $after_title The HTML tag to display after the title
*/
public static function render_widget_title( $title, $before_title, $after_title ) {
echo $before_title . esc_html( $title ) . $after_title;
}
/**
* Responsible for rendering the search box within our widget on the frontend.
*
* @since 5.8.0
*
* @param array $post_types Array of post types to limit search results to.
* @param string $orderby How to order the search results.
* @param string $order In what direction to order the search results.
*/
public static function render_widget_search_form( $post_types, $orderby, $order ) {
$form = get_search_form( false );
$fields_to_inject = array(
'orderby' => $orderby,
'order' => $order
);
// If the widget has specified post types to search within and IF the post types differ
// from the default post types that would have been searched, set the selected post
// types via hidden inputs.
if ( Jetpack_Search_Helpers::post_types_differ_searchable( $post_types ) ) {
$fields_to_inject['post_type'] = implode( ',', $post_types );
}
$form = self::inject_hidden_form_fields( $form, $fields_to_inject );
echo '<div class="jetpack-search-form">';
echo $form;
echo '</div>';
}
/**
* Modifies an HTML form to add some additional hidden fields.
*
* @since 5.8.0
*
* @param string $form The form HTML to modify.
* @param array $fields Array of hidden fields to add. Key is field name and value is the field value.
*
* @return string The modified form HTML.
*/
private static function inject_hidden_form_fields( $form, $fields ) {
$form_injection = '';
foreach ( $fields as $field_name => $field_value ) {
$form_injection .= sprintf(
'<input type="hidden" name="%s" value="%s" />',
esc_attr( $field_name ),
esc_attr( $field_value )
);
}
// This shouldn't need to be escaped since we've escaped above as we built $form_injection
$form = str_replace(
'</form>',
$form_injection . '</form>',
$form
);
return $form;
}
/**
* Internal method for filtering out non-post_type filters.
*
* @since 5.8.0
*
* @param array $filter
*
* @return bool
*/
private static function is_not_post_type_filter( $filter ) {
return 'post_type' !== $filter['type'];
}
}
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