68 lines
2.4 KiB
PHP
68 lines
2.4 KiB
PHP
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<?php
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/**
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* Server-side rendering of the `core/query-pagination-next` block.
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*
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* @package WordPress
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*/
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/**
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* Renders the `core/query-pagination-next` block on the server.
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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 next posts link for the query pagination.
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*/
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function render_block_core_query_pagination_next( $attributes, $content, $block ) {
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$page_key = isset( $block->context['queryId'] ) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page';
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$page = empty( $_GET[ $page_key ] ) ? 1 : (int) $_GET[ $page_key ];
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$max_page = isset( $block->context['query']['pages'] ) ? (int) $block->context['query']['pages'] : 0;
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$wrapper_attributes = get_block_wrapper_attributes();
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$default_label = __( 'Next Page »' );
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$label = isset( $attributes['label'] ) && ! empty( $attributes['label'] ) ? $attributes['label'] : $default_label;
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$content = '';
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// Check if the pagination is for Query that inherits the global context.
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if ( isset( $block->context['query']['inherit'] ) && $block->context['query']['inherit'] ) {
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$filter_link_attributes = function() use ( $wrapper_attributes ) {
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return $wrapper_attributes;
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};
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add_filter( 'next_posts_link_attributes', $filter_link_attributes );
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// Take into account if we have set a bigger `max page`
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// than what the query has.
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global $wp_query;
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if ( $max_page > $wp_query->max_num_pages ) {
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$max_page = $wp_query->max_num_pages;
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}
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$content = get_next_posts_link( $label, $max_page );
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remove_filter( 'next_posts_link_attributes', $filter_link_attributes );
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} elseif ( ! $max_page || $max_page > $page ) {
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$custom_query = new WP_Query( build_query_vars_from_query_block( $block, $page ) );
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if ( (int) $custom_query->max_num_pages !== $page ) {
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$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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wp_reset_postdata(); // Restore original Post Data.
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}
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return $content;
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}
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/**
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* Registers the `core/query-pagination-next` block on the server.
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*/
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function register_block_core_query_pagination_next() {
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register_block_type_from_metadata(
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__DIR__ . '/query-pagination-next',
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array(
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'render_callback' => 'render_block_core_query_pagination_next',
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)
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);
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}
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add_action( 'init', 'register_block_core_query_pagination_next' );
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