49 lines
1.3 KiB
PHP
49 lines
1.3 KiB
PHP
<?php
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/**
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* Server-side rendering of the `core/image` 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/image` block on the server,
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* adding a data-id attribute to the element if core/gallery has added on pre-render.
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*
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* @param array $attributes The block attributes.
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* @param string $content The block content.
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* @return string Returns the block content with the data-id attribute added.
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*/
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function render_block_core_image( $attributes, $content ) {
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$processor = new WP_HTML_Tag_Processor( $content );
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$processor->next_tag( 'img' );
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if ( $processor->get_attribute( 'src' ) === null ) {
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return '';
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}
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if ( isset( $attributes['data-id'] ) ) {
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// Add the data-id="$id" attribute to the img element
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// to provide backwards compatibility for the Gallery Block,
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// which now wraps Image Blocks within innerBlocks.
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// The data-id attribute is added in a core/gallery `render_block_data` hook.
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$processor->set_attribute( 'data-id', $attributes['data-id'] );
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}
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return $processor->get_updated_html();
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}
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/**
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* Registers the `core/image` block on server.
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*/
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function register_block_core_image() {
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register_block_type_from_metadata(
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__DIR__ . '/image',
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array(
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'render_callback' => 'render_block_core_image',
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)
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);
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}
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add_action( 'init', 'register_block_core_image' );
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