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- <?php
- /**
- * Server-side rendering of the `core/image` block.
- *
- * @package WordPress
- */
- /**
- * Renders the `core/image` block on the server,
- * adding a data-id attribute to the element if core/gallery has added on pre-render.
- *
- * @param array $attributes The block attributes.
- * @param string $content The block content.
- * @return string Returns the block content with the data-id attribute added.
- */
- function render_block_core_image( $attributes, $content ) {
- if ( isset( $attributes['data-id'] ) ) {
- // Add the data-id="$id" attribute to the img element
- // to provide backwards compatibility for the Gallery Block,
- // which now wraps Image Blocks within innerBlocks.
- // The data-id attribute is added in a core/gallery `render_block_data` hook.
- $data_id_attribute = 'data-id="' . esc_attr( $attributes['data-id'] ) . '"';
- if ( ! str_contains( $content, $data_id_attribute ) ) {
- $content = str_replace( '<img', '<img ' . $data_id_attribute . ' ', $content );
- }
- }
- return $content;
- }
- /**
- * Registers the `core/image` block on server.
- */
- function register_block_core_image() {
- register_block_type_from_metadata(
- __DIR__ . '/image',
- array(
- 'render_callback' => 'render_block_core_image',
- )
- );
- }
- add_action( 'init', 'register_block_core_image' );
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