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<?php /** * Server-side rendering of the `core/query-pagination-previous` block. * * @package WordPress */ /** * Renders the `core/query-pagination-previous` block on the server. * * @since 5.8.0 * * @param array $attributes Block attributes. * @param string $content Block default content. * @param WP_Block $block Block instance. * * @return string Returns the previous posts link for the query. */ function render_block_core_query_pagination_previous( $attributes, $content, $block ) { $page_key = isset( $block->context['queryId'] ) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page'; $enhanced_pagination = isset( $block->context['enhancedPagination'] ) && $block->context['enhancedPagination']; $max_page = isset( $block->context['query']['pages'] ) ? (int) $block->context['query']['pages'] : 0; $page = empty( $_GET[ $page_key ] ) ? 1 : (int) $_GET[ $page_key ]; $wrapper_attributes = get_block_wrapper_attributes(); $show_label = isset( $block->context['showLabel'] ) ? (bool) $block->context['showLabel'] : true; $default_label = __( 'Previous Page' ); $label_text = isset( $attributes['label'] ) && ! empty( $attributes['label'] ) ? esc_html( $attributes['label'] ) : $default_label; $label = $show_label ? $label_text : ''; $pagination_arrow = get_query_pagination_arrow( $block, false ); if ( ! $label ) { $wrapper_attributes .= ' aria-label="' . $label_text . '"'; } if ( $pagination_arrow ) { $label = $pagination_arrow . $label; } $content = ''; // Check if the pagination is for Query that inherits the global context // and handle appropriately. if ( isset( $block->context['query']['inherit'] ) && $block->context['query']['inherit'] ) { $filter_link_attributes = static function () use ( $wrapper_attributes ) { return $wrapper_attributes; }; add_filter( 'previous_posts_link_attributes', $filter_link_attributes ); $content = get_previous_posts_link( $label ); remove_filter( 'previous_posts_link_attributes', $filter_link_attributes ); } else { $block_query = new WP_Query( build_query_vars_from_query_block( $block, $page ) ); $block_max_pages = $block_query->max_num_pages; $total = ! $max_page || $max_page > $block_max_pages ? $block_max_pages : $max_page; wp_reset_postdata(); if ( 1 < $page && $page <= $total ) { $content = sprintf( '<a href="%1$s" %2$s>%3$s</a>', esc_url( add_query_arg( $page_key, $page - 1 ) ), $wrapper_attributes, $label ); } } if ( $enhanced_pagination && isset( $content ) ) { $p = new WP_HTML_Tag_Processor( $content ); if ( $p->next_tag( array( 'tag_name' => 'a', 'class_name' => 'wp-block-query-pagination-previous', ) ) ) { $p->set_attribute( 'data-wp-key', 'query-pagination-previous' ); $p->set_attribute( 'data-wp-on--click', 'core/query::actions.navigate' ); $p->set_attribute( 'data-wp-on-async--mouseenter', 'core/query::actions.prefetch' ); $p->set_attribute( 'data-wp-watch', 'core/query::callbacks.prefetch' ); $content = $p->get_updated_html(); } } return $content; } /** * Registers the `core/query-pagination-previous` block on the server. * * @since 5.8.0 */ function register_block_core_query_pagination_previous() { register_block_type_from_metadata( __DIR__ . '/query-pagination-previous', array( 'render_callback' => 'render_block_core_query_pagination_previous', ) ); } add_action( 'init', 'register_block_core_query_pagination_previous' );