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<?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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/** |
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* Handles backwards compatibility for Gallery Blocks, |
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* whose images feature a `data-id` attribute. |
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* |
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* Now that the Gallery Block contains inner Image Blocks, |
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* we add a custom `data-id` attribute before rendering the gallery |
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* so that the Image Block can pick it up in its render_callback. |
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* |
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* @param array $parsed_block A single parsed block object. |
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* |
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* @return array The migrated block object. |
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*/ |
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function gutenberg_render_block_core_gallery_data( $parsed_block ) { |
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if ( 'core/gallery' === $parsed_block['blockName'] ) { |
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foreach ( $parsed_block['innerBlocks'] as $key => $inner_block ) { |
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if ( 'core/image' === $inner_block['blockName'] ) { |
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if ( ! isset( $parsed_block['innerBlocks'][ $key ]['attrs']['data-id'] ) && isset( $inner_block['attrs']['id'] ) ) { |
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$parsed_block['innerBlocks'][ $key ]['attrs']['data-id'] = esc_attr( $inner_block['attrs']['id'] ); |
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} |
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} |
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} |
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} |
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|
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return $parsed_block; |
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} |
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|
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add_filter( 'render_block_data', 'gutenberg_render_block_core_gallery_data' ); |
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|
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/** |
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* Registers the `core/gallery` block on server. |
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* This render callback needs to be here |
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* so that the gallery styles are loaded in block-based themes. |
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*/ |
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function gutenberg_gutenberg_register_block_core_gallery() { |
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register_block_type_from_metadata( |
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__DIR__ . '/gallery', |
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array( |
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'render_callback' => function ( $attributes, $content ) { |
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return $content; |
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}, |
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) |
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); |
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} |
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|
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add_action( 'init', 'gutenberg_gutenberg_register_block_core_gallery', 20 ); |
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|
