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PATH: home / lab2454c / baas.elementalrock.com / wp-includes / blocks

<?php
/**
 * Server-side rendering of the `core/post-navigation-link` block.
 *
 * @package WordPress
 */

/**
 * Renders the `core/post-navigation-link` block on the server.
 *
 * @param array  $attributes Block attributes.
 * @param string $content    Block default content.
 *
 * @return string Returns the next or previous post link that is adjacent to the current post.
 */
function render_block_core_post_navigation_link( $attributes, $content ) {
	if ( ! is_singular() ) {
		return '';
	}

// Get the nagigation type to show the proper link. Available options are `next|previous`.
	$navigation_type = isset( $attributes['type'] ) ? $attributes['type'] : 'next';
	// Allow only `next` and `previous` in `$navigation_type`.
	if ( ! in_array( $navigation_type, array( 'next', 'previous' ), true ) ) {
		return '';
	}
	$classes = "post-navigation-link-$navigation_type";
	if ( isset( $attributes['textAlign'] ) ) {
		$classes .= " has-text-align-{$attributes['textAlign']}";
	}
	$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classes ) );
	// Set default values.
	$format = '%link';
	$link   = 'next' === $navigation_type ? _x( 'Next', 'label for next post link' ) : _x( 'Previous', 'label for previous post link' );
	$label  = '';

// If a custom label is provided, make this a link.
	// `$label` is used to prepend the provided label, if we want to show the page title as well.
	if ( isset( $attributes['label'] ) && ! empty( $attributes['label'] ) ) {
		$label = "{$attributes['label']}";
		$link  = $label;
	}

// If we want to also show the page title, make the page title a link and prepend the label.
	if ( isset( $attributes['showTitle'] ) && $attributes['showTitle'] ) {
		/*
		 * If the label link option is not enabled but there is a custom label,
		 * display the custom label as text before the linked title.
		 */
		if ( ! $attributes['linkLabel'] ) {
			if ( $label ) {
				$format = '<span class="post-navigation-link__label">' . $label . '</span> %link';
			}
			$link = '%title';
		} elseif ( isset( $attributes['linkLabel'] ) && $attributes['linkLabel'] ) {
			// If the label link option is enabled and there is a custom label, display it before the title.
			if ( $label ) {
				$link = '<span class="post-navigation-link__label">' . $label . '</span> <span class="post-navigation-link__title">%title</title>';
			} else {
				/*
				 * If the label link option is enabled and there is no custom label,
				 * add a colon between the label and the post title.
				 */
				$label = 'next' === $navigation_type ? _x( 'Next:', 'label before the title of the next post' ) : _x( 'Previous:', 'label before the title of the previous post' );
				$link  = sprintf(
					'<span class="post-navigation-link__label">%1$s</span> <span class="post-navigation-link__title">%2$s</span>',
					$label,
					'%title'
				);
			}
		}
	}

// The dynamic portion of the function name, `$navigation_type`,
	// refers to the type of adjacency, 'next' or 'previous'.
	$get_link_function = "get_{$navigation_type}_post_link";
	$content           = $get_link_function( $format, $link );
	return sprintf(
		'<div %1$s>%2$s</div>',
		$wrapper_attributes,
		$content
	);
}

/**
 * Registers the `core/post-navigation-link` block on the server.
 */
function register_block_core_post_navigation_link() {
	register_block_type_from_metadata(
		__DIR__ . '/post-navigation-link',
		array(
			'render_callback' => 'render_block_core_post_navigation_link',
		)
	);
}
add_action( 'init', 'register_block_core_post_navigation_link' );

[+] post-content
[+] post-comments
[+] search
[+] image
[+] column
[+] latest-comments
[-] post-navigation-link.php [edit]
[+] term-description
[+] quote
[+] audio
[+] social-links
[-] site-title.php [edit]
[-] search.php [edit]
[+] shortcode
[-] block.php [edit]
[-] term-description.php [edit]
[-] index.php [edit]
[+] navigation-submenu
[+] widget-group
[+] ..
[-] pattern.php [edit]
[-] post-title.php [edit]
[+] heading
[-] post-excerpt.php [edit]
[-] widget-group.php [edit]
[+] query-title
[+] button
[+] separator
[+] spacer
[-] query-pagination-next.php [edit]
[-] post-featured-image.php [edit]
[+] embed
[+] query-pagination-next
[+] text-columns
[+] tag-cloud
[+] more
[+] site-title
[+] site-tagline
[-] query-pagination-previous.php [edit]
[-] tag-cloud.php [edit]
[-] social-link.php [edit]
[+] cover
[-] rss.php [edit]
[-] template-part.php [edit]
[-] categories.php [edit]
[+] nextpage
[-] post-date.php [edit]
[+] code
[+] columns
[+] categories
[+] loginout
[-] calendar.php [edit]
[+] media-text
[+] preformatted
[-] post-comments.php [edit]
[+] legacy-widget
[-] latest-comments.php [edit]
[-] navigation.php [edit]
[+] rss
[+] archives
[+] group
[-] navigation-link.php [edit]
[+] navigation-link
[+] template-part
[+] post-navigation-link
[-] site-logo.php [edit]
[-] shortcode.php [edit]
[+] post-title
[-] file.php [edit]
[-] query.php [edit]
[+] post-excerpt
[+] block
[+] post-template
[+] query
[+] pattern
[+] latest-posts
[-] query-pagination-numbers.php [edit]
[-] post-terms.php [edit]
[+] table
[-] page-list.php [edit]
[-] site-tagline.php [edit]
[+] video
[+] paragraph
[-] latest-posts.php [edit]
[+] query-pagination-previous
[+] post-date
[+] verse
[+] file
[+] social-link
[+] query-pagination
[-] post-content.php [edit]
[+] buttons
[-] post-template.php [edit]
[-] archives.php [edit]
[+] calendar
[-] post-author.php [edit]
[+] list
[+] page-list
[+] missing
[+] pullquote
[+] post-featured-image
[-] query-title.php [edit]
[+] post-author
[-] query-pagination.php [edit]
[+] site-logo
[+] navigation
[-] loginout.php [edit]
[-] navigation-submenu.php [edit]
[-] legacy-widget.php [edit]
[+] post-terms
[+] query-pagination-numbers
[+] freeform
[+] gallery
[-] image.php [edit]
[-] gallery.php [edit]
[+] html