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