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Editing: accordion-item.php
<?php /** * Server-side rendering of the `core/accordion-item` block. * * @package WordPress * @since 6.9.0 * * @param array{ openByDefault: bool } $attributes The block attributes. * @param string $content The block content. * @return string Returns the updated markup. */ function block_core_accordion_item_render( array $attributes, string $content ): string { if ( '' === $content ) { return $content; } $p = new WP_HTML_Tag_Processor( $content ); $unique_id = wp_unique_id( 'accordion-item-' ); // Initialize the state of the item on the server using a closure, // since we need to get derived state based on the current context. wp_interactivity_state( 'core/accordion', array( 'isOpen' => function () { $context = wp_interactivity_get_context(); return $context['openByDefault']; }, ) ); if ( $p->next_tag( array( 'class_name' => 'wp-block-accordion-item' ) ) ) { $open_by_default = $attributes['openByDefault'] ? 'true' : 'false'; $p->set_attribute( 'data-wp-context', '{ "id": "' . $unique_id . '", "openByDefault": ' . $open_by_default . ' }' ); $p->set_attribute( 'data-wp-class--is-open', 'state.isOpen' ); $p->set_attribute( 'data-wp-init', 'callbacks.initAccordionItems' ); $p->set_attribute( 'data-wp-on-window--hashchange', 'callbacks.hashChange' ); if ( $p->next_tag( array( 'class_name' => 'wp-block-accordion-heading__toggle' ) ) ) { $p->set_attribute( 'data-wp-on--click', 'actions.toggle' ); $p->set_attribute( 'data-wp-on--keydown', 'actions.handleKeyDown' ); $p->set_attribute( 'id', $unique_id ); $p->set_attribute( 'aria-controls', $unique_id . '-panel' ); $p->set_attribute( 'data-wp-bind--aria-expanded', 'state.isOpen' ); if ( $p->next_tag( array( 'class_name' => 'wp-block-accordion-panel' ) ) ) { $p->set_attribute( 'id', $unique_id . '-panel' ); $p->set_attribute( 'aria-labelledby', $unique_id ); $p->set_attribute( 'data-wp-bind--inert', '!state.isOpen' ); // Only modify content if all directives have been set. $content = $p->get_updated_html(); } } } /* * If an Accordion Item is collapsed by default, ensure any contained IMG has fetchpriority=low to deprioritize it * from contending with resources in the critical rendering path. In contrast, remove the loading attribute to * prevent the image from not being available when the item is expanded. */ if ( ! $attributes['openByDefault'] ) { $processor = new WP_HTML_Tag_Processor( $content ); while ( $processor->next_tag( 'IMG' ) ) { $processor->set_attribute( 'fetchpriority', 'low' ); } $content = $processor->get_updated_html(); } return $content; } /** * Registers the `core/accordion-item` block on server. * * @since 6.9.0 */ function register_block_core_accordion_item() { register_block_type_from_metadata( __DIR__ . '/accordion-item', array( 'render_callback' => 'block_core_accordion_item_render', ) ); } add_action( 'init', 'register_block_core_accordion_item' );
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