'', $term = '' ) { global $wp_taxonomies; if ( ! $this->is_tax ) { return false; } if ( empty( $taxonomy ) ) { return true; } $queried_object = $this->get_queried_object(); $tax_array = array_intersect( array_keys( $wp_taxonomies ), (array) $taxonomy ); $term_array = (array) $term; // Check that the taxonomy matches. if ( ! ( isset( $queried_object->taxonomy ) && count( $tax_array ) && in_array( $queried_object->taxonomy, $tax_array, true ) ) ) { return false; } // Only a taxonomy provided. if ( empty( $term ) ) { return true; } return isset( $queried_object->term_id ) && count( array_intersect( array( $queried_object->term_id, $queried_object->name, $queried_object->slug ), $term_array ) ); } /** * Determines whether the current URL is within the comments popup window. * * @since 3.1.0 * @deprecated 4.5.0 * * @return false Always returns false. */ public function is_comments_popup() { _deprecated_function( __FUNCTION__, '4.5.0' ); return false; } /** * Determines whether the query is for an existing date archive. * * @since 3.1.0 * * @return bool Whether the query is for an existing date archive. */ public function is_date() { return (bool) $this->is_date; } /** * Determines whether the query is for an existing day archive. * * @since 3.1.0 * * @return bool Whether the query is for an existing day archive. */ public function is_day() { return (bool) $this->is_day; } /** * Determines whether the query is for a feed. * * @since 3.1.0 * * @param string|string[] $feeds Optional. Feed type or array of feed types * to check against. Default empty. * @return bool Whether the query is for a feed. */ public function is_feed( $feeds = '' ) { if ( empty( $feeds ) || ! $this->is_feed ) { return (bool) $this->is_feed; } $qv = $this->get( 'feed' ); if ( 'feed' === $qv ) { $qv = get_default_feed(); } return in_array( $qv, (array) $feeds, true ); } /** * Determines whether the query is for a comments feed. * * @since 3.1.0 * * @return bool Whether the query is for a comments feed. */ public function is_comment_feed() { return (bool) $this->is_comment_feed; } /** * Determines whether the query is for the front page of the site. * * This is for what is displayed at your site's main URL. * * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_on_front'. * * If you set a static page for the front page of your site, this function will return * true when viewing that page. * * Otherwise the same as {@see WP_Query::is_home()}. * * @since 3.1.0 * * @return bool Whether the query is for the front page of the site. */ public function is_front_page() { // Most likely case. if ( 'posts' === get_option( 'show_on_front' ) && $this->is_home() ) { return true; } elseif ( 'page' === get_option( 'show_on_front' ) && get_option( 'page_on_front' ) && $this->is_page( get_option( 'page_on_front' ) ) ) { return true; } else { return false; } } /** * Determines whether the query is for the blog homepage. * * This is the page which shows the time based blog content of your site. * * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_for_posts'. * * If you set a static page for the front page of your site, this function will return * true only on the page you set as the "Posts page". * * @since 3.1.0 * * @see WP_Query::is_front_page() * * @return bool Whether the query is for the blog homepage. */ public function is_home() { return (bool) $this->is_home; } /** * Determines whether the query is for the Privacy Policy page. * * This is the page which shows the Privacy Policy content of your site. * * Depends on the site's "Change your Privacy Policy page" Privacy Settings 'wp_page_for_privacy_policy'. * * This function will return true only on the page you set as the "Privacy Policy page". * * @since 5.2.0 * * @return bool Whether the query is for the Privacy Policy page. */ public function is_privacy_policy() { if ( get_option( 'wp_page_for_privacy_policy' ) && $this->is_page( get_option( 'wp_page_for_privacy_policy' ) ) ) { return true; } else { return false; } } /** * Determines whether the query is for an existing month archive. * * @since 3.1.0 * * @return bool Whether the query is for an existing month archive. */ public function is_month() { return (bool) $this->is_month; } /** * Determines whether the query is for an existing single page. * * If the $page parameter is specified, this function will additionally * check if the query is for one of the pages specified. * * @since 3.1.0 * * @see WP_Query::is_single() * @see WP_Query::is_singular() * * @param int|string|int[]|string[] $page Optional. Page ID, title, slug, path, or array of such * to check against. Default empty. * @return bool Whether the query is for an existing single page. */ public function is_page( $page = '' ) { if ( ! $this->is_page ) { return false; } if ( empty( $page ) ) { return true; } $page_obj = $this->get_queried_object(); if ( ! $page_obj ) { return false; } $page = array_map( 'strval', (array) $page ); if ( in_array( (string) $page_obj->ID, $page, true ) ) { return true; } elseif ( in_array( $page_obj->post_title, $page, true ) ) { return true; } elseif ( in_array( $page_obj->post_name, $page, true ) ) { return true; } else { foreach ( $page as $pagepath ) { if ( ! strpos( $pagepath, '/' ) ) { continue; } $pagepath_obj = get_page_by_path( $pagepath ); if ( $pagepath_obj && ( $pagepath_obj->ID == $page_obj->ID ) ) { return true; } } } return false; } /** * Determines whether the query is for a paged result and not for the first page. * * @since 3.1.0 * * @return bool Whether the query is for a paged result. */ public function is_paged() { return (bool) $this->is_paged; } /** * Determines whether the query is for a post or page preview. * * @since 3.1.0 * * @return bool Whether the query is for a post or page preview. */ public function is_preview() { return (bool) $this->is_preview; } /** * Determines whether the query is for the robots.txt file. * * @since 3.1.0 * * @return bool Whether the query is for the robots.txt file. */ public function is_robots() { return (bool) $this->is_robots; } /** * Determines whether the query is for the favicon.ico file. * * @since 5.4.0 * * @return bool Whether the query is for the favicon.ico file. */ public function is_favicon() { return (bool) $this->is_favicon; } /** * Determines whether the query is for a search. * * @since 3.1.0 * * @return bool Whether the query is for a search. */ public function is_search() { return (bool) $this->is_search; } /** * Determines whether the query is for an existing single post. * * Works for any post type excluding pages. * * If the $post parameter is specified, this function will additionally * check if the query is for one of the Posts specified. * * @since 3.1.0 * * @see WP_Query::is_page() * @see WP_Query::is_singular() * * @param int|string|int[]|string[] $post Optional. Post ID, title, slug, path, or array of such * to check against. Default empty. * @return bool Whether the query is for an existing single post. */ public function is_single( $post = '' ) { if ( ! $this->is_single ) { return false; } if ( empty( $post ) ) { return true; } $post_obj = $this->get_queried_object(); if ( ! $post_obj ) { return false; } $post = array_map( 'strval', (array) $post ); if ( in_array( (string) $post_obj->ID, $post, true ) ) { return true; } elseif ( in_array( $post_obj->post_title, $post, true ) ) { return true; } elseif ( in_array( $post_obj->post_name, $post, true ) ) { return true; } else { foreach ( $post as $postpath ) { if ( ! strpos( $postpath, '/' ) ) { continue; } $postpath_obj = get_page_by_path( $postpath, OBJECT, $post_obj->post_type ); if ( $postpath_obj && ( $postpath_obj->ID == $post_obj->ID ) ) { return true; } } } return false; } /** * Determines whether the query is for an existing single post of any post type * (post, attachment, page, custom post types). * * If the $post_types parameter is specified, this function will additionally * check if the query is for one of the Posts Types specified. * * @since 3.1.0 * * @see WP_Query::is_page() * @see WP_Query::is_single() * * @param string|string[] $post_types Optional. Post type or array of post types * to check against. Default empty. * @return bool Whether the query is for an existing single post * or any of the given post types. */ public function is_singular( $post_types = '' ) { if ( empty( $post_types ) || ! $this->is_singular ) { return (bool) $this->is_singular; } $post_obj = $this->get_queried_object(); if ( ! $post_obj ) { return false; } return in_array( $post_obj->post_type, (array) $post_types, true ); } /** * Determines whether the query is for a specific time. * * @since 3.1.0 * * @return bool Whether the query is for a specific time. */ public function is_time() { return (bool) $this->is_time; } /** * Determines whether the query is for a trackback endpoint call. * * @since 3.1.0 * * @return bool Whether the query is for a trackback endpoint call. */ public function is_trackback() { return (bool) $this->is_trackback; } /** * Determines whether the query is for an existing year archive. * * @since 3.1.0 * * @return bool Whether the query is for an existing year archive. */ public function is_year() { return (bool) $this->is_year; } /** * Determines whether the query is a 404 (returns no results). * * @since 3.1.0 * * @return bool Whether the query is a 404 error. */ public function is_404() { return (bool) $this->is_404; } /** * Determines whether the query is for an embedded post. * * @since 4.4.0 * * @return bool Whether the query is for an embedded post. */ public function is_embed() { return (bool) $this->is_embed; } /** * Determines whether the query is the main query. * * @since 3.3.0 * * @global WP_Query $wp_the_query WordPress Query object. * * @return bool Whether the query is the main query. */ public function is_main_query() { global $wp_the_query; return $wp_the_query === $this; } /** * Sets up global post data. * * @since 4.1.0 * @since 4.4.0 Added the ability to pass a post ID to `$post`. * * @global int $id * @global WP_User $authordata * @global string $currentday * @global string $currentmonth * @global int $page * @global array $pages * @global int $multipage * @global int $more * @global int $numpages * * @param WP_Post|object|int $post WP_Post instance or Post ID/object. * @return true True when finished. */ public function setup_postdata( $post ) { global $id, $authordata, $currentday, $currentmonth, $page, $pages, $multipage, $more, $numpages; if ( ! ( $post instanceof WP_Post ) ) { $post = get_post( $post ); } if ( ! $post ) { return; } $elements = $this->generate_postdata( $post ); if ( false === $elements ) { return; } $id = $elements['id']; $authordata = $elements['authordata']; $currentday = $elements['currentday']; $currentmonth = $elements['currentmonth']; $page = $elements['page']; $pages = $elements['pages']; $multipage = $elements['multipage']; $more = $elements['more']; $numpages = $elements['numpages']; /** * Fires once the post data has been set up. * * @since 2.8.0 * @since 4.1.0 Introduced `$query` parameter. * * @param WP_Post $post The Post object (passed by reference). * @param WP_Query $query The current Query object (passed by reference). */ do_action_ref_array( 'the_post', array( &$post, &$this ) ); return true; } /** * Generates post data. * * @since 5.2.0 * * @param WP_Post|object|int $post WP_Post instance or Post ID/object. * @return array|false Elements of post or false on failure. */ public function generate_postdata( $post ) { if ( ! ( $post instanceof WP_Post ) ) { $post = get_post( $post ); } if ( ! $post ) { return false; } $id = (int) $post->ID; $authordata = get_userdata( $post->post_author ); $currentday = false; $currentmonth = false; $post_date = $post->post_date; if ( ! empty( $post_date ) && '0000-00-00 00:00:00' !== $post_date ) { // Avoid using mysql2date for performance reasons. $currentmonth = substr( $post_date, 5, 2 ); $day = substr( $post_date, 8, 2 ); $year = substr( $post_date, 2, 2 ); $currentday = sprintf( '%s.%s.%s', $day, $currentmonth, $year ); } $numpages = 1; $multipage = 0; $page = $this->get( 'page' ); if ( ! $page ) { $page = 1; } /* * Force full post content when viewing the permalink for the $post, * or when on an RSS feed. Otherwise respect the 'more' tag. */ if ( get_queried_object_id() === $post->ID && ( $this->is_page() || $this->is_single() ) ) { $more = 1; } elseif ( $this->is_feed() ) { $more = 1; } else { $more = 0; } $content = $post->post_content; if ( str_contains( $content, '' ) ) { $content = str_replace( "\n\n", '', $content ); $content = str_replace( "\n", '', $content ); $content = str_replace( "\n", '', $content ); // Remove the nextpage block delimiters, to avoid invalid block structures in the split content. $content = str_replace( '', '', $content ); $content = str_replace( '', '', $content ); // Ignore nextpage at the beginning of the content. if ( str_starts_with( $content, '' ) ) { $content = substr( $content, 15 ); } $pages = explode( '', $content ); } else { $pages = array( $post->post_content ); } /** * Filters the "pages" derived from splitting the post content. * * "Pages" are determined by splitting the post content based on the presence * of `` tags. * * @since 4.4.0 * * @param string[] $pages Array of "pages" from the post content split by `` tags. * @param WP_Post $post Current post object. */ $pages = apply_filters( 'content_pagination', $pages, $post ); $numpages = count( $pages ); if ( $numpages > 1 ) { if ( $page > 1 ) { $more = 1; } $multipage = 1; } else { $multipage = 0; } $elements = compact( 'id', 'authordata', 'currentday', 'currentmonth', 'page', 'pages', 'multipage', 'more', 'numpages' ); return $elements; } /** * Generates cache key. * * @since 6.1.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param array $args Query arguments. * @param string $sql SQL statement. * @return string Cache key. */ protected function generate_cache_key( array $args, $sql ) { global $wpdb; unset( $args['cache_results'], $args['fields'], $args['lazy_load_term_meta'], $args['update_post_meta_cache'], $args['update_post_term_cache'], $args['update_menu_item_cache'], $args['suppress_filters'] ); if ( empty( $args['post_type'] ) ) { if ( $this->is_attachment ) { $args['post_type'] = 'attachment'; } elseif ( $this->is_page ) { $args['post_type'] = 'page'; } else { $args['post_type'] = 'post'; } } elseif ( 'any' === $args['post_type'] ) { $args['post_type'] = array_values( get_post_types( array( 'exclude_from_search' => false ) ) ); } $args['post_type'] = (array) $args['post_type']; // Sort post types to ensure same cache key generation. sort( $args['post_type'] ); if ( isset( $args['post_status'] ) ) { $args['post_status'] = (array) $args['post_status']; // Sort post status to ensure same cache key generation. sort( $args['post_status'] ); } // Add a default orderby value of date to ensure same cache key generation. if ( ! isset( $q['orderby'] ) ) { $args['orderby'] = 'date'; } $placeholder = $wpdb->placeholder_escape(); array_walk_recursive( $args, /* * Replace wpdb placeholders with the string used in the database * query to avoid unreachable cache keys. This is necessary because * the placeholder is randomly generated in each request. * * $value is passed by reference to allow it to be modified. * array_walk_recursive() does not return an array. */ static function ( &$value ) use ( $wpdb, $placeholder ) { if ( is_string( $value ) && str_contains( $value, $placeholder ) ) { $value = $wpdb->remove_placeholder_escape( $value ); } } ); ksort( $args ); // Replace wpdb placeholder in the SQL statement used by the cache key. $sql = $wpdb->remove_placeholder_escape( $sql ); $key = md5( serialize( $args ) . $sql ); $last_changed = wp_cache_get_last_changed( 'posts' ); if ( ! empty( $this->tax_query->queries ) ) { $last_changed .= wp_cache_get_last_changed( 'terms' ); } return "wp_query:$key:$last_changed"; } /** * After looping through a nested query, this function * restores the $post global to the current post in this query. * * @since 3.7.0 * * @global WP_Post $post Global post object. */ public function reset_postdata() { if ( ! empty( $this->post ) ) { $GLOBALS['post'] = $this->post; $this->setup_postdata( $this->post ); } } /** * Lazyloads term meta for posts in the loop. * * @since 4.4.0 * @deprecated 4.5.0 See wp_queue_posts_for_term_meta_lazyload(). * * @param mixed $check * @param int $term_id * @return mixed */ public function lazyload_term_meta( $check, $term_id ) { _deprecated_function( __METHOD__, '4.5.0' ); return $check; } /** * Lazyloads comment meta for comments in the loop. * * @since 4.4.0 * @deprecated 4.5.0 See wp_lazyload_comment_meta(). * * @param mixed $check * @param int $comment_id * @return mixed */ public function lazyload_comment_meta( $check, $comment_id ) { _deprecated_function( __METHOD__, '4.5.0' ); return $check; } } } $state = array(); foreach ( $this->state_data as $key => $value ) { if ( ! empty( $value ) ) { $state[ $key ] = $value; } } if ( ! empty( $state ) ) { $data['state'] = $state; } return $data; } /** * Returns the latest value on the context stack with the passed namespace. * * When the namespace is omitted, it uses the current namespace on the * namespace stack during a `process_directives` call. * * @since 6.6.0 * * @param string $store_namespace Optional. The unique store namespace identifier. */ public function get_context( ?string $store_namespace = null ): array { if ( null === $this->context_stack ) { _doing_it_wrong( __METHOD__, __( 'The context can only be read during directive processing.' ), '6.6.0' ); return array(); } if ( ! $store_namespace ) { if ( null !== $store_namespace ) { _doing_it_wrong( __METHOD__, __( 'The namespace should be a non-empty string.' ), '6.6.0' ); return array(); } $store_namespace = end( $this->namespace_stack ); } $context = end( $this->context_stack ); return ( $store_namespace && $context && isset( $context[ $store_namespace ] ) ) ? $context[ $store_namespace ] : array(); } /** * Returns an array representation of the current element being processed. * * The returned array contains a copy of the element attributes. * * @since 6.7.0 * * @return array{attributes: array}|null Current element. */ public function get_element(): ?array { if ( null === $this->current_element ) { _doing_it_wrong( __METHOD__, __( 'The element can only be read during directive processing.' ), '6.7.0' ); } return $this->current_element; } /** * Registers the `@wordpress/interactivity` script modules. * * @deprecated 6.7.0 Script Modules registration is handled by {@see wp_default_script_modules()}. * * @since 6.5.0 */ public function register_script_modules() { _deprecated_function( __METHOD__, '6.7.0', 'wp_default_script_modules' ); } /** * Adds the necessary hooks for the Interactivity API. * * @since 6.5.0 */ public function add_hooks() { add_filter( 'script_module_data_@wordpress/interactivity', array( $this, 'filter_script_module_interactivity_data' ) ); add_filter( 'script_module_data_@wordpress/interactivity-router', array( $this, 'filter_script_module_interactivity_router_data' ) ); } /** * Processes the interactivity directives contained within the HTML content * and updates the markup accordingly. * * @since 6.5.0 * * @param string $html The HTML content to process. * @return string The processed HTML content. It returns the original content when the HTML contains unbalanced tags. */ public function process_directives( string $html ): string { if ( ! str_contains( $html, 'data-wp-' ) ) { return $html; } $this->namespace_stack = array(); $this->context_stack = array(); $result = $this->_process_directives( $html ); $this->namespace_stack = null; $this->context_stack = null; return null === $result ? $html : $result; } /** * Processes the interactivity directives contained within the HTML content * and updates the markup accordingly. * * It uses the WP_Interactivity_API instance's context and namespace stacks, * which are shared between all calls. * * This method returns null if the HTML contains unbalanced tags. * * @since 6.6.0 * * @param string $html The HTML content to process. * @return string|null The processed HTML content. It returns null when the HTML contains unbalanced tags. */ private function _process_directives( string $html ) { $p = new WP_Interactivity_API_Directives_Processor( $html ); $tag_stack = array(); $unbalanced = false; $directive_processor_prefixes = array_keys( self::$directive_processors ); $directive_processor_prefixes_reversed = array_reverse( $directive_processor_prefixes ); /* * Save the current size for each stack to restore them in case * the processing finds unbalanced tags. */ $namespace_stack_size = count( $this->namespace_stack ); $context_stack_size = count( $this->context_stack ); while ( $p->next_tag( array( 'tag_closers' => 'visit' ) ) ) { $tag_name = $p->get_tag(); /* * Directives inside SVG and MATH tags are not processed, * as they are not compatible with the Tag Processor yet. * We still process the rest of the HTML. */ if ( 'SVG' === $tag_name || 'MATH' === $tag_name ) { if ( $p->get_attribute_names_with_prefix( 'data-wp-' ) ) { /* translators: 1: SVG or MATH HTML tag, 2: Namespace of the interactive block. */ $message = sprintf( __( 'Interactivity directives were detected on an incompatible %1$s tag when processing "%2$s". These directives will be ignored in the server side render.' ), $tag_name, end( $this->namespace_stack ) ); _doing_it_wrong( __METHOD__, $message, '6.6.0' ); } $p->skip_to_tag_closer(); continue; } if ( $p->is_tag_closer() ) { list( $opening_tag_name, $directives_prefixes ) = end( $tag_stack ); if ( 0 === count( $tag_stack ) || $opening_tag_name !== $tag_name ) { /* * If the tag stack is empty or the matching opening tag is not the * same than the closing tag, it means the HTML is unbalanced and it * stops processing it. */ $unbalanced = true; break; } else { // Remove the last tag from the stack. array_pop( $tag_stack ); } } else { if ( 0 !== count( $p->get_attribute_names_with_prefix( 'data-wp-each-child' ) ) ) { /* * If the tag has a `data-wp-each-child` directive, jump to its closer * tag because those tags have already been processed. */ $p->next_balanced_tag_closer_tag(); continue; } else { $directives_prefixes = array(); // Checks if there is a server directive processor registered for each directive. foreach ( $p->get_attribute_names_with_prefix( 'data-wp-' ) as $attribute_name ) { list( $directive_prefix ) = $this->extract_prefix_and_suffix( $attribute_name ); if ( array_key_exists( $directive_prefix, self::$directive_processors ) ) { $directives_prefixes[] = $directive_prefix; } } /* * If this tag will visit its closer tag, it adds it to the tag stack * so it can process its closing tag and check for unbalanced tags. */ if ( $p->has_and_visits_its_closer_tag() ) { $tag_stack[] = array( $tag_name, $directives_prefixes ); } } } /* * If the matching opener tag didn't have any directives, it can skip the * processing. */ if ( 0 === count( $directives_prefixes ) ) { continue; } // Directive processing might be different depending on if it is entering the tag or exiting it. $modes = array( 'enter' => ! $p->is_tag_closer(), 'exit' => $p->is_tag_closer() || ! $p->has_and_visits_its_closer_tag(), ); // Get the element attributes to include them in the element representation. $element_attrs = array(); $attr_names = $p->get_attribute_names_with_prefix( '' ) ?? array(); foreach ( $attr_names as $name ) { $element_attrs[ $name ] = $p->get_attribute( $name ); } // Assign the current element right before running its directive processors. $this->current_element = array( 'attributes' => $element_attrs, ); foreach ( $modes as $mode => $should_run ) { if ( ! $should_run ) { continue; } /* * Sorts the attributes by the order of the `directives_processor` array * and checks what directives are present in this element. */ $existing_directives_prefixes = array_intersect( 'enter' === $mode ? $directive_processor_prefixes : $directive_processor_prefixes_reversed, $directives_prefixes ); foreach ( $existing_directives_prefixes as $directive_prefix ) { $func = is_array( self::$directive_processors[ $directive_prefix ] ) ? self::$directive_processors[ $directive_prefix ] : array( $this, self::$directive_processors[ $directive_prefix ] ); call_user_func_array( $func, array( $p, $mode, &$tag_stack ) ); } } // Clear the current element. $this->current_element = null; } if ( $unbalanced ) { // Reset the namespace and context stacks to their previous values. array_splice( $this->namespace_stack, $namespace_stack_size ); array_splice( $this->context_stack, $context_stack_size ); } /* * It returns null if the HTML is unbalanced because unbalanced HTML is * not safe to process. In that case, the Interactivity API runtime will * update the HTML on the client side during the hydration. It will also * display a notice to the developer to inform them about the issue. */ if ( $unbalanced || 0 < count( $tag_stack ) ) { $tag_errored = 0 < count( $tag_stack ) ? end( $tag_stack )[0] : $tag_name; /* translators: %1s: Namespace processed, %2s: The tag that caused the error; could be any HTML tag. */ $message = sprintf( __( 'Interactivity directives failed to process in "%1$s" due to a missing "%2$s" end tag.' ), end( $this->namespace_stack ), $tag_errored ); _doing_it_wrong( __METHOD__, $message, '6.6.0' ); return null; } return $p->get_updated_html(); } /** * Evaluates the reference path passed to a directive based on the current * store namespace, state and context. * * @since 6.5.0 * @since 6.6.0 The function now adds a warning when the namespace is null, falsy, or the directive value is empty. * @since 6.6.0 Removed `default_namespace` and `context` arguments. * @since 6.6.0 Add support for derived state. * * @param string|true $directive_value The directive attribute value string or `true` when it's a boolean attribute. * @return mixed|null The result of the evaluation. Null if the reference path doesn't exist or the namespace is falsy. */ private function evaluate( $directive_value ) { $default_namespace = end( $this->namespace_stack ); $context = end( $this->context_stack ); list( $ns, $path ) = $this->extract_directive_value( $directive_value, $default_namespace ); if ( ! $ns || ! $path ) { /* translators: %s: The directive value referenced. */ $message = sprintf( __( 'Namespace or reference path cannot be empty. Directive value referenced: %s' ), $directive_value ); _doing_it_wrong( __METHOD__, $message, '6.6.0' ); return null; } $store = array( 'state' => $this->state_data[ $ns ] ?? array(), 'context' => $context[ $ns ] ?? array(), ); // Checks if the reference path is preceded by a negation operator (!). $should_negate_value = '!' === $path[0]; $path = $should_negate_value ? substr( $path, 1 ) : $path; // Extracts the value from the store using the reference path. $path_segments = explode( '.', $path ); $current = $store; foreach ( $path_segments as $path_segment ) { if ( ( is_array( $current ) || $current instanceof ArrayAccess ) && isset( $current[ $path_segment ] ) ) { $current = $current[ $path_segment ]; } elseif ( is_object( $current ) && isset( $current->$path_segment ) ) { $current = $current->$path_segment; } else { $current = null; break; } if ( $current instanceof Closure ) { /* * This state getter's namespace is added to the stack so that * `state()` or `get_config()` read that namespace when called * without specifying one. */ array_push( $this->namespace_stack, $ns ); try { $current = $current(); } catch ( Throwable $e ) { _doing_it_wrong( __METHOD__, sprintf( /* translators: 1: Path pointing to an Interactivity API state property, 2: Namespace for an Interactivity API store. */ __( 'Uncaught error executing a derived state callback with path "%1$s" and namespace "%2$s".' ), $path, $ns ), '6.6.0' ); return null; } finally { // Remove the property's namespace from the stack. array_pop( $this->namespace_stack ); } } } // Returns the opposite if it contains a negation operator (!). return $should_negate_value ? ! $current : $current; } /** * Extracts the directive attribute name to separate and return the directive * prefix and an optional suffix. * * The suffix is the string after the first double hyphen and the prefix is * everything that comes before the suffix. * * Example: * * extract_prefix_and_suffix( 'data-wp-interactive' ) => array( 'data-wp-interactive', null ) * extract_prefix_and_suffix( 'data-wp-bind--src' ) => array( 'data-wp-bind', 'src' ) * extract_prefix_and_suffix( 'data-wp-foo--and--bar' ) => array( 'data-wp-foo', 'and--bar' ) * * @since 6.5.0 * * @param string $directive_name The directive attribute name. * @return array An array containing the directive prefix and optional suffix. */ private function extract_prefix_and_suffix( string $directive_name ): array { return explode( '--', $directive_name, 2 ); } /** * Parses and extracts the namespace and reference path from the given * directive attribute value. * * If the value doesn't contain an explicit namespace, it returns the * default one. If the value contains a JSON object instead of a reference * path, the function tries to parse it and return the resulting array. If * the value contains strings that represent booleans ("true" and "false"), * numbers ("1" and "1.2") or "null", the function also transform them to * regular booleans, numbers and `null`. * * Example: * * extract_directive_value( 'actions.foo', 'myPlugin' ) => array( 'myPlugin', 'actions.foo' ) * extract_directive_value( 'otherPlugin::actions.foo', 'myPlugin' ) => array( 'otherPlugin', 'actions.foo' ) * extract_directive_value( '{ "isOpen": false }', 'myPlugin' ) => array( 'myPlugin', array( 'isOpen' => false ) ) * extract_directive_value( 'otherPlugin::{ "isOpen": false }', 'myPlugin' ) => array( 'otherPlugin', array( 'isOpen' => false ) ) * * @since 6.5.0 * * @param string|true $directive_value The directive attribute value. It can be `true` when it's a boolean * attribute. * @param string|null $default_namespace Optional. The default namespace if none is explicitly defined. * @return array An array containing the namespace in the first item and the JSON, the reference path, or null on the * second item. */ private function extract_directive_value( $directive_value, $default_namespace = null ): array { if ( empty( $directive_value ) || is_bool( $directive_value ) ) { return array( $default_namespace, null ); } // Replaces the value and namespace if there is a namespace in the value. if ( 1 === preg_match( '/^([\w\-_\/]+)::./', $directive_value ) ) { list($default_namespace, $directive_value) = explode( '::', $directive_value, 2 ); } /* * Tries to decode the value as a JSON object. If it fails and the value * isn't `null`, it returns the value as it is. Otherwise, it returns the * decoded JSON or null for the string `null`. */ $decoded_json = json_decode( $directive_value, true ); if ( null !== $decoded_json || 'null' === $directive_value ) { $directive_value = $decoded_json; } return array( $default_namespace, $directive_value ); } /** * Transforms a kebab-case string to camelCase. * * @param string $str The kebab-case string to transform to camelCase. * @return string The transformed camelCase string. */ private function kebab_to_camel_case( string $str ): string { return lcfirst( preg_replace_callback( '/(-)([a-z])/', function ( $matches ) { return strtoupper( $matches[2] ); }, strtolower( rtrim( $str, '-' ) ) ) ); } /** * Processes the `data-wp-interactive` directive. * * It adds the default store namespace defined in the directive value to the * stack so that it's available for the nested interactivity elements. * * @since 6.5.0 * * @param WP_Interactivity_API_Directives_Processor $p The directives processor instance. * @param string $mode Whether the processing is entering or exiting the tag. */ private function data_wp_interactive_processor( WP_Interactivity_API_Directives_Processor $p, string $mode ) { // When exiting tags, it removes the last namespace from the stack. if ( 'exit' === $mode ) { array_pop( $this->namespace_stack ); return; } // Tries to decode the `data-wp-interactive` attribute value. $attribute_value = $p->get_attribute( 'data-wp-interactive' ); /* * Pushes the newly defined namespace or the current one if the * `data-wp-interactive` definition was invalid or does not contain a * namespace. It does so because the function pops out the current namespace * from the stack whenever it finds a `data-wp-interactive`'s closing tag, * independently of whether the previous `data-wp-interactive` definition * contained a valid namespace. */ $new_namespace = null; if ( is_string( $attribute_value ) && ! empty( $attribute_value ) ) { $decoded_json = json_decode( $attribute_value, true ); if ( is_array( $decoded_json ) ) { $new_namespace = $decoded_json['namespace'] ?? null; } else { $new_namespace = $attribute_value; } } $this->namespace_stack[] = ( $new_namespace && 1 === preg_match( '/^([\w\-_\/]+)/', $new_namespace ) ) ? $new_namespace : end( $this->namespace_stack ); } /** * Processes the `data-wp-context` directive. * * It adds the context defined in the directive value to the stack so that * it's available for the nested interactivity elements. * * @since 6.5.0 * * @param WP_Interactivity_API_Directives_Processor $p The directives processor instance. * @param string $mode Whether the processing is entering or exiting the tag. */ private function data_wp_context_processor( WP_Interactivity_API_Directives_Processor $p, string $mode ) { // When exiting tags, it removes the last context from the stack. if ( 'exit' === $mode ) { array_pop( $this->context_stack ); return; } $attribute_value = $p->get_attribute( 'data-wp-context' ); $namespace_value = end( $this->namespace_stack ); // Separates the namespace from the context JSON object. list( $namespace_value, $decoded_json ) = is_string( $attribute_value ) && ! empty( $attribute_value ) ? $this->extract_directive_value( $attribute_value, $namespace_value ) : array( $namespace_value, null ); /* * If there is a namespace, it adds a new context to the stack merging the * previous context with the new one. */ if ( is_string( $namespace_value ) ) { $this->context_stack[] = array_replace_recursive( end( $this->context_stack ) !== false ? end( $this->context_stack ) : array(), array( $namespace_value => is_array( $decoded_json ) ? $decoded_json : array() ) ); } else { /* * If there is no namespace, it pushes the current context to the stack. * It needs to do so because the function pops out the current context * from the stack whenever it finds a `data-wp-context`'s closing tag. */ $this->context_stack[] = end( $this->context_stack ); } } /** * Processes the `data-wp-bind` directive. * * It updates or removes the bound attributes based on the evaluation of its * associated reference. * * @since 6.5.0 * * @param WP_Interactivity_API_Directives_Processor $p The directives processor instance. * @param string $mode Whether the processing is entering or exiting the tag. */ private function data_wp_bind_processor( WP_Interactivity_API_Directives_Processor $p, string $mode ) { if ( 'enter' === $mode ) { $all_bind_directives = $p->get_attribute_names_with_prefix( 'data-wp-bind--' ); foreach ( $all_bind_directives as $attribute_name ) { list( , $bound_attribute ) = $this->extract_prefix_and_suffix( $attribute_name ); if ( empty( $bound_attribute ) ) { return; } $attribute_value = $p->get_attribute( $attribute_name ); $result = $this->evaluate( $attribute_value ); if ( null !== $result && ( false !== $result || ( strlen( $bound_attribute ) > 5 && '-' === $bound_attribute[4] ) ) ) { /* * If the result of the evaluation is a boolean and the attribute is * `aria-` or `data-, convert it to a string "true" or "false". It * follows the exact same logic as Preact because it needs to * replicate what Preact will later do in the client: * https://github.com/preactjs/preact/blob/ea49f7a0f9d1ff2c98c0bdd66aa0cbc583055246/src/diff/props.js#L131C24-L136 */ if ( is_bool( $result ) && ( strlen( $bound_attribute ) > 5 && '-' === $bound_attribute[4] ) ) { $result = $result ? 'true' : 'false'; } $p->set_attribute( $bound_attribute, $result ); } else { $p->remove_attribute( $bound_attribute ); } } } } /** * Processes the `data-wp-class` directive. * * It adds or removes CSS classes in the current HTML element based on the * evaluation of its associated references. * * @since 6.5.0 * * @param WP_Interactivity_API_Directives_Processor $p The directives processor instance. * @param string $mode Whether the processing is entering or exiting the tag. */ private function data_wp_class_processor( WP_Interactivity_API_Directives_Processor $p, string $mode ) { if ( 'enter' === $mode ) { $all_class_directives = $p->get_attribute_names_with_prefix( 'data-wp-class--' ); foreach ( $all_class_directives as $attribute_name ) { list( , $class_name ) = $this->extract_prefix_and_suffix( $attribute_name ); if ( empty( $class_name ) ) { return; } $attribute_value = $p->get_attribute( $attribute_name ); $result = $this->evaluate( $attribute_value ); if ( $result ) { $p->add_class( $class_name ); } else { $p->remove_class( $class_name ); } } } } /** * Processes the `data-wp-style` directive. * * It updates the style attribute value of the current HTML element based on * the evaluation of its associated references. * * @since 6.5.0 * * @param WP_Interactivity_API_Directives_Processor $p The directives processor instance. * @param string $mode Whether the processing is entering or exiting the tag. */ private function data_wp_style_processor( WP_Interactivity_API_Directives_Processor $p, string $mode ) { if ( 'enter' === $mode ) { $all_style_attributes = $p->get_attribute_names_with_prefix( 'data-wp-style--' ); foreach ( $all_style_attributes as $attribute_name ) { list( , $style_property ) = $this->extract_prefix_and_suffix( $attribute_name ); if ( empty( $style_property ) ) { continue; } $directive_attribute_value = $p->get_attribute( $attribute_name ); $style_property_value = $this->evaluate( $directive_attribute_value ); $style_attribute_value = $p->get_attribute( 'style' ); $style_attribute_value = ( $style_attribute_value && ! is_bool( $style_attribute_value ) ) ? $style_attribute_value : ''; /* * Checks first if the style property is not falsy and the style * attribute value is not empty because if it is, it doesn't need to * update the attribute value. */ if ( $style_property_value || $style_attribute_value ) { $style_attribute_value = $this->merge_style_property( $style_attribute_value, $style_property, $style_property_value ); /* * If the style attribute value is not empty, it sets it. Otherwise, * it removes it. */ if ( ! empty( $style_attribute_value ) ) { $p->set_attribute( 'style', $style_attribute_value ); } else { $p->remove_attribute( 'style' ); } } } } } /** * Merges an individual style property in the `style` attribute of an HTML * element, updating or removing the property when necessary. * * If a property is modified, the old one is removed and the new one is added * at the end of the list. * * @since 6.5.0 * * Example: * * merge_style_property( 'color:green;', 'color', 'red' ) => 'color:red;' * merge_style_property( 'background:green;', 'color', 'red' ) => 'background:green;color:red;' * merge_style_property( 'color:green;', 'color', null ) => '' * * @param string $style_attribute_value The current style attribute value. * @param string $style_property_name The style property name to set. * @param string|false|null $style_property_value The value to set for the style property. With false, null or an * empty string, it removes the style property. * @return string The new style attribute value after the specified property has been added, updated or removed. */ private function merge_style_property( string $style_attribute_value, string $style_property_name, $style_property_value ): string { $style_assignments = explode( ';', $style_attribute_value ); $result = array(); $style_property_value = ! empty( $style_property_value ) ? rtrim( trim( $style_property_value ), ';' ) : null; $new_style_property = $style_property_value ? $style_property_name . ':' . $style_property_value . ';' : ''; // Generates an array with all the properties but the modified one. foreach ( $style_assignments as $style_assignment ) { if ( empty( trim( $style_assignment ) ) ) { continue; } list( $name, $value ) = explode( ':', $style_assignment ); if ( trim( $name ) !== $style_property_name ) { $result[] = trim( $name ) . ':' . trim( $value ) . ';'; } } // Adds the new/modified property at the end of the list. $result[] = $new_style_property; return implode( '', $result ); } /** * Processes the `data-wp-text` directive. * * It updates the inner content of the current HTML element based on the * evaluation of its associated reference. * * @since 6.5.0 * * @param WP_Interactivity_API_Directives_Processor $p The directives processor instance. * @param string $mode Whether the processing is entering or exiting the tag. */ private function data_wp_text_processor( WP_Interactivity_API_Directives_Processor $p, string $mode ) { if ( 'enter' === $mode ) { $attribute_value = $p->get_attribute( 'data-wp-text' ); $result = $this->evaluate( $attribute_value ); /* * Follows the same logic as Preact in the client and only changes the * content if the value is a string or a number. Otherwise, it removes the * content. */ if ( is_string( $result ) || is_numeric( $result ) ) { $p->set_content_between_balanced_tags( esc_html( $result ) ); } else { $p->set_content_between_balanced_tags( '' ); } } } /** * Returns the CSS styles for animating the top loading bar in the router. * * @since 6.5.0 * * @return string The CSS styles for the router's top loading bar animation. */ private function get_router_animation_styles(): string { return <<print_router_markup(); } /** * Outputs markup for the @wordpress/interactivity-router script module. * * This method prints a div element representing a loading bar visible during * navigation. * * @since 6.7.0 */ public function print_router_markup() { echo << HTML; } /** * Processes the `data-wp-router-region` directive. * * It renders in the footer a set of HTML elements to notify users about * client-side navigations. More concretely, the elements added are 1) a * top loading bar to visually inform that a navigation is in progress * and 2) an `aria-live` region for accessible navigation announcements. * * @since 6.5.0 * * @param WP_Interactivity_API_Directives_Processor $p The directives processor instance. * @param string $mode Whether the processing is entering or exiting the tag. */ private function data_wp_router_region_processor( WP_Interactivity_API_Directives_Processor $p, string $mode ) { if ( 'enter' === $mode && ! $this->has_processed_router_region ) { $this->has_processed_router_region = true; // Enqueues as an inline style. wp_register_style( 'wp-interactivity-router-animations', false ); wp_add_inline_style( 'wp-interactivity-router-animations', $this->get_router_animation_styles() ); wp_enqueue_style( 'wp-interactivity-router-animations' ); // Adds the necessary markup to the footer. add_action( 'wp_footer', array( $this, 'print_router_markup' ) ); } } /** * Processes the `data-wp-each` directive. * * This directive gets an array passed as reference and iterates over it * generating new content for each item based on the inner markup of the * `template` tag. * * @since 6.5.0 * * @param WP_Interactivity_API_Directives_Processor $p The directives processor instance. * @param string $mode Whether the processing is entering or exiting the tag. * @param array $tag_stack The reference to the tag stack. */ private function data_wp_each_processor( WP_Interactivity_API_Directives_Processor $p, string $mode, array &$tag_stack ) { if ( 'enter' === $mode && 'TEMPLATE' === $p->get_tag() ) { $attribute_name = $p->get_attribute_names_with_prefix( 'data-wp-each' )[0]; $extracted_suffix = $this->extract_prefix_and_suffix( $attribute_name ); $item_name = isset( $extracted_suffix[1] ) ? $this->kebab_to_camel_case( $extracted_suffix[1] ) : 'item'; $attribute_value = $p->get_attribute( $attribute_name ); $result = $this->evaluate( $attribute_value ); // Gets the content between the template tags and leaves the cursor in the closer tag. $inner_content = $p->get_content_between_balanced_template_tags(); // Checks if there is a manual server-side directive processing. $template_end = 'data-wp-each: template end'; $p->set_bookmark( $template_end ); $p->next_tag(); $manual_sdp = $p->get_attribute( 'data-wp-each-child' ); $p->seek( $template_end ); // Rewinds to the template closer tag. $p->release_bookmark( $template_end ); /* * It doesn't process in these situations: * - Manual server-side directive processing. * - Empty or non-array values. * - Associative arrays because those are deserialized as objects in JS. * - Templates that contain top-level texts because those texts can't be * identified and removed in the client. */ if ( $manual_sdp || empty( $result ) || ! is_array( $result ) || ! array_is_list( $result ) || ! str_starts_with( trim( $inner_content ), '<' ) || ! str_ends_with( trim( $inner_content ), '>' ) ) { array_pop( $tag_stack ); return; } // Extracts the namespace from the directive attribute value. $namespace_value = end( $this->namespace_stack ); list( $namespace_value ) = is_string( $attribute_value ) && ! empty( $attribute_value ) ? $this->extract_directive_value( $attribute_value, $namespace_value ) : array( $namespace_value, null ); // Processes the inner content for each item of the array. $processed_content = ''; foreach ( $result as $item ) { // Creates a new context that includes the current item of the array. $this->context_stack[] = array_replace_recursive( end( $this->context_stack ) !== false ? end( $this->context_stack ) : array(), array( $namespace_value => array( $item_name => $item ) ) ); // Processes the inner content with the new context. $processed_item = $this->_process_directives( $inner_content ); if ( null === $processed_item ) { // If the HTML is unbalanced, stop processing it. array_pop( $this->context_stack ); return; } // Adds the `data-wp-each-child` to each top-level tag. $i = new WP_Interactivity_API_Directives_Processor( $processed_item ); while ( $i->next_tag() ) { $i->set_attribute( 'data-wp-each-child', true ); $i->next_balanced_tag_closer_tag(); } $processed_content .= $i->get_updated_html(); // Removes the current context from the stack. array_pop( $this->context_stack ); } // Appends the processed content after the tag closer of the template. $p->append_content_after_template_tag_closer( $processed_content ); // Pops the last tag because it skipped the closing tag of the template tag. array_pop( $tag_stack ); } } }