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<?php |
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/** |
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* Server-side rendering of the `core/query-pagination-previous` block. |
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* |
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* @package WordPress |
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*/ |
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|
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/** |
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* Renders the `core/query-pagination-previous` block on the server. |
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* |
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* @since 5.8.0 |
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* |
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* @param array $attributes Block attributes. |
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* @param string $content Block default content. |
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* @param WP_Block $block Block instance. |
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* |
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* @return string Returns the previous posts link for the query. |
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*/ |
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function gutenberg_render_block_core_query_pagination_previous( $attributes, $content, $block ) { |
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$page_key = isset( $block->context['queryId'] ) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page'; |
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$enhanced_pagination = (bool) ( $block->context['enhancedPagination'] ?? false ); |
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$max_page = (int) ( $block->context['query']['pages'] ?? 0 ); |
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$page = empty( $_GET[ $page_key ] ) ? 1 : (int) $_GET[ $page_key ]; |
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$wrapper_attributes = get_block_wrapper_attributes(); |
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$show_label = (bool) ( $block->context['showLabel'] ?? true ); |
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$default_label = __( 'Previous Page' ); |
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$label_text = isset( $attributes['label'] ) && ! empty( $attributes['label'] ) ? esc_html( $attributes['label'] ) : $default_label; |
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$label = $show_label ? $label_text : ''; |
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$pagination_arrow = get_query_pagination_arrow( $block, false ); |
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if ( ! $label ) { |
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$wrapper_attributes .= ' aria-label="' . $label_text . '"'; |
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} |
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if ( $pagination_arrow ) { |
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$label = $pagination_arrow . $label; |
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} |
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$content = ''; |
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// Check if the pagination is for Query that inherits the global context |
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// and handle appropriately. |
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if ( isset( $block->context['query']['inherit'] ) && $block->context['query']['inherit'] ) { |
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$filter_link_attributes = static function () use ( $wrapper_attributes ) { |
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return $wrapper_attributes; |
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}; |
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|
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add_filter( 'previous_posts_link_attributes', $filter_link_attributes ); |
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$content = get_previous_posts_link( $label ); |
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remove_filter( 'previous_posts_link_attributes', $filter_link_attributes ); |
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} else { |
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$block_query = new WP_Query( build_query_vars_from_query_block( $block, $page ) ); |
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$block_max_pages = $block_query->max_num_pages; |
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$total = ! $max_page || $max_page > $block_max_pages ? $block_max_pages : $max_page; |
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wp_reset_postdata(); |
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|
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if ( 1 < $page && $page <= $total ) { |
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$content = sprintf( |
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'<a href="%1$s" %2$s>%3$s</a>', |
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esc_url( add_query_arg( $page_key, $page - 1 ) ), |
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$wrapper_attributes, |
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$label |
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); |
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} |
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} |
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|
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if ( $enhanced_pagination && isset( $content ) ) { |
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$p = new WP_HTML_Tag_Processor( $content ); |
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if ( $p->next_tag( |
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array( |
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'tag_name' => 'a', |
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'class_name' => 'wp-block-query-pagination-previous', |
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) |
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) ) { |
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$p->set_attribute( 'data-wp-key', 'query-pagination-previous' ); |
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$p->set_attribute( 'data-wp-on--click', 'core/query::actions.navigate' ); |
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$p->set_attribute( 'data-wp-on--mouseenter', 'core/query::actions.prefetch' ); |
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$p->set_attribute( 'data-wp-watch', 'core/query::callbacks.prefetch' ); |
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$content = $p->get_updated_html(); |
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} |
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} |
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|
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return $content; |
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} |
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|
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/** |
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* Registers the `core/query-pagination-previous` block on the server. |
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* |
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* @since 5.8.0 |
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*/ |
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function gutenberg_register_block_core_query_pagination_previous() { |
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register_block_type_from_metadata( |
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__DIR__ . '/query-pagination-previous', |
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array( |
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'render_callback' => 'gutenberg_render_block_core_query_pagination_previous', |
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) |
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); |
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} |
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add_action( 'init', 'gutenberg_register_block_core_query_pagination_previous', 20 ); |
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|
