<?php

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/**

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* Server-side rendering of the `core/comments-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/comments-pagination-next` block on the server.

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*

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* @since 6.0.0

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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 next comments link for the query pagination.

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*/

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function render_block_core_comments_pagination_next( $attributes, $content, $block ) {

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// Bail out early if the post ID is not set for some reason.

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if ( empty( $block->context['postId'] ) ) {

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return '';

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}

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$comment_vars = build_comment_query_vars_from_block( $block );

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$max_page = ( new WP_Comment_Query( $comment_vars ) )->max_num_pages;

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$default_label = __( 'Newer Comments' );

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$label = isset( $attributes['label'] ) && ! empty( $attributes['label'] ) ? $attributes['label'] : $default_label;

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$pagination_arrow = get_comments_pagination_arrow( $block, 'next' );

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$filter_link_attributes = static function () {

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return get_block_wrapper_attributes();

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};

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add_filter( 'next_comments_link_attributes', $filter_link_attributes );

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if ( $pagination_arrow ) {

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$label .= $pagination_arrow;

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}

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$next_comments_link = get_next_comments_link( $label, $max_page, $comment_vars['paged'] ?? null );

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remove_filter( 'next_posts_link_attributes', $filter_link_attributes );

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if ( ! isset( $next_comments_link ) ) {

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return '';

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}

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return $next_comments_link;

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}

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/**

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* Registers the `core/comments-pagination-next` block on the server.

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*

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* @since 6.0.0

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*/

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function register_block_core_comments_pagination_next() {

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register_block_type_from_metadata(

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__DIR__ . '/comments-pagination-next',

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array(

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'render_callback' => 'render_block_core_comments_pagination_next',

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)

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);

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}

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add_action( 'init', 'register_block_core_comments_pagination_next' );

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