WordPress/wp-includes/blocks/post-excerpt.php
youknowriad e76d4e1bcd Block Editor: Backport fixes targetted for WordPress 5.8 RC4.
This includes:

 - Suggestion List: Check if a node exists to scroll into view.
 - Autocomplete: reset state for empty text.
 - Adds auxiliary class names for editor styles in the widgets editor.
 - Extract snackbars into a separate component.
 - Rich text: run input rules after composition end.
 - iframe: load inline styles.
 - Multi select: select all: restore ref callback.
 - Writing flow: allow select all from empty selection.
 - Post Excerpt: Fix excerpt_more filter conflict and remove wordCount attribute.
 - Add the percent unit to the default units in Core.

Props desrosj.
See #53397.

Built from https://develop.svn.wordpress.org/trunk@51443


git-svn-id: http://core.svn.wordpress.org/trunk@51054 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2021-07-15 18:55:29 +00:00

64 lines
2.4 KiB
PHP

<?php
/**
* Server-side rendering of the `core/post-excerpt` block.
*
* @package WordPress
*/
/**
* Renders the `core/post-excerpt` block on the server.
*
* @param array $attributes Block attributes.
* @param string $content Block default content.
* @param WP_Block $block Block instance.
* @return string Returns the filtered post excerpt for the current post wrapped inside "p" tags.
*/
function render_block_core_post_excerpt( $attributes, $content, $block ) {
if ( ! isset( $block->context['postId'] ) ) {
return '';
}
$more_text = ! empty( $attributes['moreText'] ) ? '<a class="wp-block-post-excerpt__more-link" href="' . esc_url( get_the_permalink( $block->context['postId'] ) ) . '">' . $attributes['moreText'] . '</a>' : '';
$filter_excerpt_more = function( $more ) use ( $more_text ) {
return empty( $more_text ) ? $more : '';
};
/**
* Some themes might use `excerpt_more` filter to handle the
* `more` link displayed after a trimmed excerpt. Since the
* block has a `more text` attribute we have to check and
* override if needed the return value from this filter.
* So if the block's attribute is not empty override the
* `excerpt_more` filter and return nothing. This will
* result in showing only one `read more` link at a time.
*/
add_filter( 'excerpt_more', $filter_excerpt_more );
$classes = '';
if ( isset( $attributes['textAlign'] ) ) {
$classes .= "has-text-align-{$attributes['textAlign']}";
}
$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classes ) );
$content = '<p class="wp-block-post-excerpt__excerpt">' . get_the_excerpt( $block->context['postId'] );
$show_more_on_new_line = ! isset( $attributes['showMoreOnNewLine'] ) || $attributes['showMoreOnNewLine'];
if ( $show_more_on_new_line && ! empty( $more_text ) ) {
$content .= '</p><p class="wp-block-post-excerpt__more-text">' . $more_text . '</p>';
} else {
$content .= " $more_text</p>";
}
remove_filter( 'excerpt_more', $filter_excerpt_more );
return sprintf( '<div %1$s>%2$s</div>', $wrapper_attributes, $content );
}
/**
* Registers the `core/post-excerpt` block on the server.
*/
function register_block_core_post_excerpt() {
register_block_type_from_metadata(
__DIR__ . '/post-excerpt',
array(
'render_callback' => 'render_block_core_post_excerpt',
)
);
}
add_action( 'init', 'register_block_core_post_excerpt' );