83 lines
2.7 KiB
PHP
83 lines
2.7 KiB
PHP
<?php
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/**
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* Server-side rendering of the `core/post-comments-form` 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-comments-form` block on the server.
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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 filtered post comments form for the current post.
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*/
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function render_block_core_post_comments_form( $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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if ( post_password_required( $block->context['postId'] ) ) {
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return;
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}
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$classes = array( 'comment-respond' ); // See comment further below.
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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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add_filter( 'comment_form_defaults', 'post_comments_form_block_form_defaults' );
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ob_start();
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comment_form( array(), $block->context['postId'] );
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$form = ob_get_clean();
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remove_filter( 'comment_form_defaults', 'post_comments_form_block_form_defaults' );
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// We use the outermost wrapping `<div />` returned by `comment_form()`
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// which is identified by its default classname `comment-respond` to inject
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// our wrapper attributes. This way, it is guaranteed that all styling applied
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// to the block is carried along when the comment form is moved to the location
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// of the 'Reply' link that the user clicked by Core's `comment-reply.js` script.
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$form = str_replace( 'class="comment-respond"', $wrapper_attributes, $form );
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// Enqueue the comment-reply script.
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wp_enqueue_script( 'comment-reply' );
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return $form;
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}
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/**
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* Registers the `core/post-comments-form` block on the server.
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*/
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function register_block_core_post_comments_form() {
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register_block_type_from_metadata(
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__DIR__ . '/post-comments-form',
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array(
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'render_callback' => 'render_block_core_post_comments_form',
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)
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);
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}
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add_action( 'init', 'register_block_core_post_comments_form' );
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/**
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* Use the button block classes for the form-submit button.
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*
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* @param array $fields The default comment form arguments.
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*
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* @return array Returns the modified fields.
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*/
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function post_comments_form_block_form_defaults( $fields ) {
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if ( wp_is_block_theme() ) {
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$fields['submit_button'] = '<input name="%1$s" type="submit" id="%2$s" class="wp-block-button__link ' . wp_theme_get_element_class_name( 'button' ) . '" value="%4$s" />';
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$fields['submit_field'] = '<p class="form-submit wp-block-button">%1$s %2$s</p>';
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}
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return $fields;
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}
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