<?php

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/**

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* Server-side rendering of the `core/post-title` 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/post-title` block on the server.

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*

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* @since 6.3.0 Omitting the $post argument from the `get_the_title`.

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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 filtered post title for the current post wrapped inside "h1" tags.

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*/

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function render_block_core_post_title( $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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/**

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* The `$post` argument is intentionally omitted so that changes are reflected when previewing a post.

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* See: https://github.com/WordPress/gutenberg/pull/37622#issuecomment-1000932816.

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*/

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$title = get_the_title();

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if ( ! $title ) {

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return '';

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}

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$tag_name = 'h2';

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if ( isset( $attributes['level'] ) ) {

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$tag_name = 0 === $attributes['level'] ? 'p' : 'h' . (int) $attributes['level'];

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}

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if ( isset( $attributes['isLink'] ) && $attributes['isLink'] ) {

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$rel = ! empty( $attributes['rel'] ) ? 'rel="' . esc_attr( $attributes['rel'] ) . '"' : '';

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$title = sprintf( '<a href="%1$s" target="%2$s" %3$s>%4$s</a>', esc_url( get_the_permalink( $block->context['postId'] ) ), esc_attr( $attributes['linkTarget'] ), $rel, $title );

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}

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$classes = array();

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if ( isset( $attributes['textAlign'] ) ) {

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$classes[] = 'has-text-align-' . $attributes['textAlign'];

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}

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if ( isset( $attributes['style']['elements']['link']['color']['text'] ) ) {

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$classes[] = 'has-link-color';

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}

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$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classes ) ) );

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return sprintf(

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'<%1$s %2$s>%3$s</%1$s>',

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$tag_name,

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$wrapper_attributes,

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$title

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);

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}

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/**

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* Registers the `core/post-title` block on the server.

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*

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* @since 5.8.0

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*/

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function register_block_core_post_title() {

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register_block_type_from_metadata(

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__DIR__ . '/post-title',

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array(

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'render_callback' => 'render_block_core_post_title',

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)

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);

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}

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add_action( 'init', 'register_block_core_post_title' );

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