query-pagination-previous.php (2034B)
1 <?php 2 /** 3 * Server-side rendering of the `core/query-pagination-previous` block. 4 * 5 * @package WordPress 6 */ 7 8 /** 9 * Renders the `core/query-pagination-previous` block on the server. 10 * 11 * @param array $attributes Block attributes. 12 * @param string $content Block default content. 13 * @param WP_Block $block Block instance. 14 * 15 * @return string Returns the previous posts link for the query. 16 */ 17 function render_block_core_query_pagination_previous( $attributes, $content, $block ) { 18 $page_key = isset( $block->context['queryId'] ) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page'; 19 $page = empty( $_GET[ $page_key ] ) ? 1 : (int) $_GET[ $page_key ]; 20 21 $wrapper_attributes = get_block_wrapper_attributes(); 22 $default_label = __( '« Previous Page' ); 23 $label = isset( $attributes['label'] ) && ! empty( $attributes['label'] ) ? $attributes['label'] : $default_label; 24 $content = ''; 25 // Check if the pagination is for Query that inherits the global context 26 // and handle appropriately. 27 if ( isset( $block->context['query']['inherit'] ) && $block->context['query']['inherit'] ) { 28 $filter_link_attributes = function() use ( $wrapper_attributes ) { 29 return $wrapper_attributes; 30 }; 31 add_filter( 'previous_posts_link_attributes', $filter_link_attributes ); 32 $content = get_previous_posts_link( $label ); 33 remove_filter( 'previous_posts_link_attributes', $filter_link_attributes ); 34 } elseif ( 1 !== $page ) { 35 $content = sprintf( 36 '<a href="%1$s" %2$s>%3$s</a>', 37 esc_url( add_query_arg( $page_key, $page - 1 ) ), 38 $wrapper_attributes, 39 $label 40 ); 41 } 42 return $content; 43 } 44 45 /** 46 * Registers the `core/query-pagination-previous` block on the server. 47 */ 48 function register_block_core_query_pagination_previous() { 49 register_block_type_from_metadata( 50 __DIR__ . '/query-pagination-previous', 51 array( 52 'render_callback' => 'render_block_core_query_pagination_previous', 53 ) 54 ); 55 } 56 add_action( 'init', 'register_block_core_query_pagination_previous' );