<?php

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/**

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* Server-side rendering of the `core/read-more` 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/read-more` 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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* @return string Returns the post link.

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*/

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

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

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return '';

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}

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$post_ID = $block->context['postId'];

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$post_title = get_the_title( $post_ID );

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if ( '' === $post_title ) {

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$post_title = sprintf(

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/* translators: %s is post ID to describe the link for screen readers. */

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__( 'untitled post %s' ),

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$post_ID

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);

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}

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$screen_reader_text = sprintf(

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/* translators: %s is either the post title or post ID to describe the link for screen readers. */

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__( ': %s' ),

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$post_title

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);

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$justify_class_name = empty( $attributes['justifyContent'] ) ? '' : "is-justified-{$attributes['justifyContent']}";

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$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $justify_class_name ) );

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$more_text = ! empty( $attributes['content'] ) ? wp_kses_post( $attributes['content'] ) : __( 'Read more' );

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return sprintf(

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'<a %1s href="%2s" target="%3s">%4s<span class="screen-reader-text">%5s</span></a>',

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$wrapper_attributes,

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get_the_permalink( $post_ID ),

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esc_attr( $attributes['linkTarget'] ),

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$more_text,

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$screen_reader_text

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);

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}

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/**

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* Registers the `core/read-more` 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_read_more() {

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register_block_type_from_metadata(

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__DIR__ . '/read-more',

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array(

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'render_callback' => 'render_block_core_read_more',

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)

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);

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}

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add_action( 'init', 'register_block_core_read_more' );

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