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<?php
class FacetWP_Display
{
/* (array) Facet types being used on the page */
public $active_types = [];
/* (array) Facets being used on the page */
public $active_facets = [];
/* (array) Extra features used on the page */
public $active_extras = [];
/* (array) Saved shortcode attributes */
public $shortcode_atts = [];
/* (boolean) Whether to enable FacetWP for the current page */
public $load_assets = false;
/* (array) Scripts and stylesheets to enqueue */
public $assets = [];
/* (array) Data to pass to front-end JS */
public $json = [];
function __construct() {
add_filter( 'widget_text', 'do_shortcode' );
add_action( 'loop_start', [ $this, 'add_template_tag' ] );
add_action( 'loop_no_results', [ $this, 'add_template_tag' ] );
add_action( 'wp_footer', [ $this, 'front_scripts' ], 25 );
add_shortcode( 'facetwp', [ $this, 'shortcode' ] );
}
/**
* Detect the loop container if the "facetwp-template" class is missing
*/
function add_template_tag( $wp_query ) {
if ( true === $wp_query->get( 'facetwp' ) && did_action( 'wp_head' ) ) {
echo "<!--fwp-loop-->\n";
}
}
/**
* Set default values for atts
*
* Old: [facetwp template="foo" static]
* New: [facetwp template="foo" static="true"]
*/
function normalize_atts( $atts ) {
foreach ( $atts as $key => $val ) {
if ( is_int( $key ) ) {
$atts[ $val ] = true;
unset( $atts[ $key ] );
}
}
return $atts;
}
/**
* Register shortcodes
*/
function shortcode( $atts ) {
$atts = $this->normalize_atts( $atts );
$this->shortcode_atts[] = $atts;
$output = '';
if ( isset( $atts['facet'] ) ) {
$facet = FWP()->helper->get_facet_by_name( $atts['facet'] );
if ( $facet ) {
$ui = empty( $facet['ui_type'] ) ? $facet['type'] : $facet['ui_type'];
$ui_attr = empty( $facet['ui_type'] ) ? '' : ' data-ui="' . $ui . '"';
$output = '<div class="facetwp-facet facetwp-facet-' . $facet['name'] . ' facetwp-type-' . $ui . '" data-name="' . $facet['name'] . '" data-type="' . $facet['type'] . '"' . $ui_attr . '></div>';
// Build list of active facet types
$this->active_types[ $facet['type'] ] = $facet['type'];
$this->active_facets[ $facet['name'] ] = $facet['name'];
$this->load_assets = true;
}
}
elseif ( isset( $atts['template'] ) ) {
$template = FWP()->helper->get_template_by_name( $atts['template'] );
if ( $template ) {
$class_name = 'facetwp-template';
// Static template
if ( isset( $atts['static'] ) ) {
$renderer = new FacetWP_Renderer();
$renderer->template = $template;
$renderer->query_args = $renderer->get_query_args();
$renderer->query = new WP_Query( $renderer->query_args );
$html = $renderer->get_template_html();
$class_name .= '-static';
}
// Preload template (search engine visible)
else {
global $wp_query;
$temp_query = $wp_query;
$args = FWP()->request->process_preload_data( $template['name'] );
$preload_data = FWP()->facet->render( $args );
$html = $preload_data['template'];
$wp_query = $temp_query;
}
$output = '<div class="{class}" data-name="{name}">{html}</div>';
$output = str_replace( '{class}', $class_name, $output );
$output = str_replace( '{name}', $atts['template'], $output );
$output = str_replace( '{html}', $html, $output );
$this->load_assets = true;
}
}
elseif ( isset( $atts['sort'] ) ) {
$this->active_extras['sort'] = true;
$output = '<div class="facetwp-sort"></div>';
}
elseif ( isset( $atts['selections'] ) ) {
$output = '<div class="facetwp-selections"></div>';
}
elseif ( isset( $atts['counts'] ) ) {
$this->active_extras['counts'] = true;
$output = '<div class="facetwp-counts"></div>';
}
elseif ( isset( $atts['pager'] ) ) {
$this->active_extras['pager'] = true;
$output = '<div class="facetwp-pager"></div>';
}
elseif ( isset( $atts['per_page'] ) ) {
$this->active_extras['per_page'] = true;
$output = '<div class="facetwp-per-page"></div>';
}
$output = apply_filters( 'facetwp_shortcode_html', $output, $atts );
return $output;
}
/**
* Output facet scripts
*/
function front_scripts() {
// Not enqueued - front.js needs to load before front_scripts()
if ( apply_filters( 'facetwp_load_assets', $this->load_assets ) ) {
// Load CSS?
if ( apply_filters( 'facetwp_load_css', true ) ) {
$this->assets['front.css'] = FACETWP_URL . '/assets/css/front.css';
}
// Load required JS
$this->assets['front.js'] = FACETWP_URL . '/assets/js/dist/front.min.js';
// Backwards compat?
if ( apply_filters( 'facetwp_load_deprecated', false ) ) {
$this->assets['front-deprecated.js'] = FACETWP_URL . '/assets/js/src/deprecated.js';
}
// Load a11y?
$a11y = FWP()->helper->get_setting( 'load_a11y', 'no' );
$a11y_hook = apply_filters( 'facetwp_load_a11y', false );
if ( 'yes' == $a11y || $a11y_hook ) {
$this->assets['accessibility.js'] = FACETWP_URL . '/assets/js/src/accessibility.js';
$this->json['a11y'] = [
'label_page' => __( 'Go to page', 'fwp-front' ),
'label_page_next' => __( 'Go to next page', 'fwp-front' ),
'label_page_prev' => __( 'Go to previous page', 'fwp-front' )
];
}
// Pass GET and URI params
$http_params = [
'get' => $_GET,
'uri' => FWP()->helper->get_uri(),
'url_vars' => FWP()->request->url_vars,
];
// See FWP()->facet->get_query_args()
if ( ! empty( FWP()->facet->archive_args ) ) {
$http_params['archive_args'] = FWP()->facet->archive_args;
}
// Populate the FWP_JSON object
$this->json['prefix'] = FWP()->helper->get_setting( 'prefix' );
$this->json['no_results_text'] = __( 'No results found', 'fwp-front' );
$this->json['ajaxurl'] = get_rest_url() . 'facetwp/v1/refresh';
$this->json['nonce'] = wp_create_nonce( 'wp_rest' );
if ( apply_filters( 'facetwp_use_preloader', true ) ) {
$overrides = FWP()->request->process_preload_overrides([
'facets' => $this->active_facets,
'extras' => $this->active_extras,
]);
$args = FWP()->request->process_preload_data( false, $overrides );
$this->json['preload_data'] = FWP()->facet->render( $args );
}
ob_start();
foreach ( $this->active_types as $type ) {
$facet_class = FWP()->helper->facet_types[ $type ];
if ( method_exists( $facet_class, 'front_scripts' ) ) {
$facet_class->front_scripts();
}
}
$inline_scripts = ob_get_clean();
$assets = apply_filters( 'facetwp_assets', $this->assets );
foreach ( $assets as $slug => $data ) {
$data = (array) $data;
$is_css = ( 'css' == substr( $slug, -3 ) );
$version = empty( $data[1] ) ? FACETWP_VERSION : $data[1];
$url = $data[0];
if ( false !== strpos( $url, 'facetwp' ) ) {
$prefix = ( false !== strpos( $url, '?' ) ) ? '&' : '?';
$url .= $prefix . 'ver=' . $version;
}
$html = $is_css ? '<link href="{url}" rel="stylesheet">' : '<script src="{url}"></script>';
$html = apply_filters( 'facetwp_asset_html', $html, $url );
echo str_replace( '{url}', $url, $html ) . "\n";
}
echo $inline_scripts;
do_action( 'facetwp_scripts' );
?>
<script>
window.FWP_JSON = <?php echo json_encode( $this->json ); ?>;
window.FWP_HTTP = <?php echo json_encode( FWP()->helper->escape( $http_params ) ); ?>;
</script>
<?php
}
}
}