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<?php |
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/** |
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* Server-side rendering of the `core/gallery` 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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* @since 5.9.0 |
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* |
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* @param array $parsed_block The block being rendered. |
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* @return array The migrated block object. |
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*/ |
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function gutenberg_block_core_gallery_data_id_backcompatibility( $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_block_core_gallery_data_id_backcompatibility' ); |
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|
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/** |
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* Adds a unique ID to the gallery block context. |
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* |
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* @since 7.0.0 |
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* |
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* @param array $context Default context. |
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* @param array $parsed_block Block being rendered, filtered by render_block_data. |
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* @return array Filtered context. |
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*/ |
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function gutenberg_block_core_gallery_render_context( $context, $parsed_block ) { |
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if ( 'core/gallery' === $parsed_block['blockName'] ) { |
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$context['galleryId'] = uniqid(); |
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} |
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return $context; |
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} |
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|
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add_filter( 'render_block_context', 'gutenberg_block_core_gallery_render_context', 10, 2 ); |
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|
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/** |
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* Returns the column gap value used for Gallery image width calculations. |
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* |
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* @since 7.1.0 |
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* |
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* @param string|array|null $gap Gallery block gap value. |
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* @param string $fallback_gap Fallback gap value. |
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* @return string Gallery column gap value. |
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*/ |
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function gutenberg_block_core_gallery_get_column_gap_value( $gap, $fallback_gap ) { |
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if ( is_array( $gap ) ) { |
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$gap = $gap['left'] ?? $fallback_gap; |
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} |
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|
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// Make sure $gap is a string to avoid PHP 8.1 deprecation error in preg_match() when the value is null. |
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$gap = is_string( $gap ) ? $gap : ''; |
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|
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// Skip if gap value contains unsupported characters. |
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// Regex for CSS value borrowed from `safecss_filter_attr`, and used here |
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// because we only want to match against the value, not the CSS attribute. |
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$gap = $gap && preg_match( '%[\\\(&=}]|/\*%', $gap ) ? null : $gap; |
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|
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// Get spacing CSS variable from preset value if provided. |
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if ( is_string( $gap ) && str_contains( $gap, 'var:preset|spacing|' ) ) { |
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$index_to_splice = strrpos( $gap, '|' ) + 1; |
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$slug = _wp_to_kebab_case( substr( $gap, $index_to_splice ) ); |
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$gap = "var(--wp--preset--spacing--$slug)"; |
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} |
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|
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$gap_column = ( null !== $gap && '' !== $gap ) ? $gap : $fallback_gap; |
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|
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// The unstable gallery gap calculation requires a real value (such as `0px`) and not `0`. |
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return '0' === $gap_column ? '0px' : $gap_column; |
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} |
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|
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/** |
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* Resolves a Gallery block's `dynamicContent` to an ordered list of image |
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* attachment IDs. |
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* |
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* The `source` key is the dispatch discriminator and `args` holds the source's |
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* parameters. This `{ source, args }` shape mirrors the Block Bindings metadata |
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* shape so dynamic mode can migrate to an `innerBlocks` binding with minimal |
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* change. `core/attached-media` is a context-relative anchor (the post the gallery is |
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* rendered within); future sources translate their REST-named `args` (`author`, |
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* `categories`, `after`/`before`, `media_type`, etc.) into `WP_Query` arguments |
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* here. |
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* |
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* @since 7.0.0 |
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* |
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* @param array $source The gallery's `dynamicContent` attribute. |
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* @param WP_Block $block The gallery block instance being rendered. |
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* @return int[] Ordered list of image attachment IDs. |
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*/ |
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function gutenberg_block_core_gallery_resolve_dynamic_source( $source, $block ) { |
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if ( ! is_array( $source ) ) { |
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return array(); |
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} |
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|
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$source_name = $source['source'] ?? null; |
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$args = isset( $source['args'] ) && is_array( $source['args'] ) ? $source['args'] : array(); |
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|
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switch ( $source_name ) { |
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case 'core/attached-media': |
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// Prefer the post supplied via block context, falling back to the post |
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// being rendered. The fallback is what lets a post-bound template (e.g. |
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// `single`/`page`) resolve against the actual post at render time even |
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// though the editor has no concrete post to preview — the editor gates |
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// the dynamic-mode UI on that same context (see `use-dynamic-gallery.js`). |
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$post_id = $block->context['postId'] ?? get_the_ID(); |
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if ( ! $post_id ) { |
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return array(); |
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} |
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|
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// Map the camelCase `args` (block-attribute convention) to WP_Query |
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// names, defaulting to the same order as the editor preview (see |
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// `dynamic-source.js`). Only REST-supported orderby values are |
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// allowed; `menu_order` is intentionally unsupported (it isn't a |
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// valid media REST `orderby`). |
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$orderby = $args['orderBy'] ?? 'date'; |
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if ( ! in_array( $orderby, array( 'date', 'title' ), true ) ) { |
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$orderby = 'date'; |
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} |
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$order = strtoupper( $args['order'] ?? 'desc' ) === 'ASC' ? 'ASC' : 'DESC'; |
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|
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// Bound the number of resolved images until the gallery supports |
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// pagination. Kept in sync with the editor query's `per_page` cap; a |
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// case-insensitive grep for `max_images` finds both this and |
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// `MAX_IMAGES` in `dynamic-source.js`. |
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$max_images = 100; |
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|
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$query = new WP_Query( |
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array( |
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'post_parent' => $post_id, |
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'post_type' => 'attachment', |
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'post_status' => 'inherit', |
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'post_mime_type' => 'image', |
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'orderby' => $orderby, |
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'order' => $order, |
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'posts_per_page' => $max_images, |
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'fields' => 'ids', |
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'no_found_rows' => true, |
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) |
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); |
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|
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return array_map( 'intval', $query->posts ); |
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} |
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|
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// Unknown or not-yet-implemented source type. |
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return array(); |
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} |
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|
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/** |
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* Builds the link-related image block attributes for a dynamically rendered |
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* gallery image, mapping the gallery-wide `linkTo` setting onto a single image. |
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* |
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* Mirrors the editor's `getHrefAndDestination()` (see `gallery/utils.js`). |
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* |
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* @since 7.0.0 |
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* |
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* @param int $attachment_id The image attachment ID. |
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* @param array $attributes The gallery block attributes. |
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* @return array Partial image block attributes (`href`, `linkDestination`, |
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* `linkTarget`, `rel`, `lightbox`). |
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*/ |
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function gutenberg_block_core_gallery_dynamic_image_link_attributes( $attachment_id, $attributes ) { |
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$link_to = $attributes['linkTo'] ?? 'none'; |
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$attrs = array(); |
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|
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switch ( $link_to ) { |
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// Gutenberg uses 'media'/'attachment'; WP Core uses 'file'/'post'. |
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case 'media': |
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case 'file': |
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$attrs['href'] = wp_get_attachment_url( $attachment_id ); |
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$attrs['linkDestination'] = 'media'; |
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break; |
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case 'attachment': |
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case 'post': |
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$attrs['href'] = get_attachment_link( $attachment_id ); |
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$attrs['linkDestination'] = 'attachment'; |
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break; |
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case 'lightbox': |
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$attrs['linkDestination'] = 'none'; |
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$attrs['lightbox'] = array( 'enabled' => true ); |
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break; |
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} |
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|
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if ( ! empty( $attrs['href'] ) && '_blank' === ( $attributes['linkTarget'] ?? '' ) ) { |
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$attrs['linkTarget'] = '_blank'; |
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$attrs['rel'] = 'noopener'; |
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} |
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|
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return $attrs; |
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} |
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|
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/** |
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* Renders a single `core/image` block for a Gallery block running in dynamic |
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* mode, applying the gallery-wide settings that affect how an image renders. |
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* |
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* The image markup is generated here (via `wp_get_attachment_image()`) and |
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* rendered through a real `core/image` block instance so that the image block's |
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* own render callback and lightbox behavior run, and so the gallery's existing |
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* lightbox/interactivity post-processing can pick it up. |
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* |
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* @since 7.0.0 |
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* |
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* @param int $attachment_id The image attachment ID. |
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* @param array $attributes The gallery block attributes. |
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* @param array $context Context to expose to the inner image block. |
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* @return string The rendered image block HTML, or an empty string on failure. |
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*/ |
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function gutenberg_block_core_gallery_render_dynamic_image( $attachment_id, $attributes, $context ) { |
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$size_slug = $attributes['sizeSlug'] ?? 'large'; |
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$aspect_ratio = $attributes['aspectRatio'] ?? 'auto'; |
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|
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$img_attr = array( 'class' => 'wp-image-' . $attachment_id ); |
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if ( $aspect_ratio && 'auto' !== $aspect_ratio ) { |
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// Run the aspect ratio through the same sanitization used for every other |
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// block inline style, so an unsafe value can't break out of the style |
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// attribute or inject additional markup. |
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$img_attr['style'] = safecss_filter_attr( |
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sprintf( 'aspect-ratio:%s;object-fit:cover;', $aspect_ratio ) |
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); |
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} |
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|
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$image_markup = wp_get_attachment_image( $attachment_id, $size_slug, false, $img_attr ); |
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if ( ! $image_markup ) { |
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return ''; |
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} |
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|
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$image_attributes = array_merge( |
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array( |
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'id' => $attachment_id, |
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'data-id' => (string) $attachment_id, |
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'sizeSlug' => $size_slug, |
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), |
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gutenberg_block_core_gallery_dynamic_image_link_attributes( $attachment_id, $attributes ) |
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); |
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|
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if ( $aspect_ratio && 'auto' !== $aspect_ratio ) { |
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$image_attributes['aspectRatio'] = $aspect_ratio; |
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$image_attributes['scale'] = 'cover'; |
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} |
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|
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// Wrap in a link when the gallery links images somewhere. |
| 259 |
if ( ! empty( $image_attributes['href'] ) ) { |
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$image_markup = sprintf( |
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'<a href="%1$s"%2$s%3$s>%4$s</a>', |
| 262 |
esc_url( $image_attributes['href'] ), |
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isset( $image_attributes['linkTarget'] ) ? ' target="' . esc_attr( $image_attributes['linkTarget'] ) . '"' : '', |
| 264 |
isset( $image_attributes['rel'] ) ? ' rel="' . esc_attr( $image_attributes['rel'] ) . '"' : '', |
| 265 |
$image_markup |
| 266 |
); |
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} |
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|
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// Use the raw caption (`post_excerpt`) so the frontend mirrors the editor |
| 270 |
// preview, which builds the caption from the REST `caption.raw` value. Gap: |
| 271 |
// the REST API exposes no caption run through `wp_get_attachment_caption`, so |
| 272 |
// that filter isn't applied here either. |
| 273 |
$attachment = get_post( $attachment_id ); |
| 274 |
$caption = $attachment ? $attachment->post_excerpt : ''; |
| 275 |
if ( '' !== $caption ) { |
| 276 |
$image_markup .= sprintf( |
| 277 |
'<figcaption class="wp-element-caption">%s</figcaption>', |
| 278 |
wp_kses_post( $caption ) |
| 279 |
); |
| 280 |
} |
| 281 |
|
| 282 |
$figure = sprintf( |
| 283 |
'<figure class="wp-block-image size-%1$s">%2$s</figure>', |
| 284 |
esc_attr( $size_slug ), |
| 285 |
$image_markup |
| 286 |
); |
| 287 |
|
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$image_block = array( |
| 289 |
'blockName' => 'core/image', |
| 290 |
'attrs' => $image_attributes, |
| 291 |
'innerBlocks' => array(), |
| 292 |
'innerHTML' => $figure, |
| 293 |
'innerContent' => array( $figure ), |
| 294 |
); |
| 295 |
|
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return ( new WP_Block( $image_block, $context ) )->render(); |
| 297 |
} |
| 298 |
|
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/** |
| 300 |
* Renders the `core/gallery` block on the server. |
| 301 |
* |
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* @since 6.0.0 |
| 303 |
* |
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* @param array $attributes Attributes of the block being rendered. |
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* @param string $content Content of the block being rendered. |
| 306 |
* @param array $block The block instance being rendered. |
| 307 |
* @return string The content of the block being rendered. |
| 308 |
*/ |
| 309 |
function gutenberg_block_core_gallery_render( $attributes, $content, $block ) { |
| 310 |
static $global_styles = null; |
| 311 |
|
| 312 |
// In dynamic mode the gallery's images are resolved at render time instead of |
| 313 |
// being authored as inner blocks, so `save.js` persists at most the |
| 314 |
// gallery-level caption — a bare `<figcaption>`, or nothing when there is no |
| 315 |
// caption. Resolve the configured source to a list of attachments, render an |
| 316 |
// image block for each, and build the gallery `<figure>` wrapper from scratch. |
| 317 |
// The gap/randomOrder/lightbox post-processing below then runs over the |
| 318 |
// constructed markup unchanged. |
| 319 |
if ( ! empty( $attributes['dynamicContent'] ) ) { |
| 320 |
$attachment_ids = gutenberg_block_core_gallery_resolve_dynamic_source( $attributes['dynamicContent'], $block ); |
| 321 |
|
| 322 |
// Nothing resolved — no attachments, or an unrecognized source. Render |
| 323 |
// nothing rather than an empty gallery wrapper; a saved caption is |
| 324 |
// meaningless without images, so it is intentionally dropped too. |
| 325 |
if ( empty( $attachment_ids ) ) { |
| 326 |
return ''; |
| 327 |
} |
| 328 |
|
| 329 |
// The source query only fetched IDs (`fields => ids`), which skips |
| 330 |
// WP_Query's cache priming. Each image rendered below reads the |
| 331 |
// attachment post and its meta (via `wp_get_attachment_image()`, |
| 332 |
// `get_post()`, etc.), so warm the post and meta caches in a single pair |
| 333 |
// of queries up front instead of paying ~two queries per attachment. |
| 334 |
// Term cache is left cold: the render path doesn't read attachment terms. |
| 335 |
if ( count( $attachment_ids ) > 1 ) { |
| 336 |
_prime_post_caches( $attachment_ids, false, true ); |
| 337 |
} |
| 338 |
|
| 339 |
// Expose the gallery's provided context (plus galleryId/postId/postType) |
| 340 |
// to each image block, since these images are rendered outside the |
| 341 |
// gallery's real inner-block tree. |
| 342 |
$image_context = array_merge( |
| 343 |
is_array( $block->context ) ? $block->context : array(), |
| 344 |
array( |
| 345 |
'allowResize' => $attributes['allowResize'] ?? false, |
| 346 |
'imageCrop' => $attributes['imageCrop'] ?? true, |
| 347 |
'fixedHeight' => $attributes['fixedHeight'] ?? true, |
| 348 |
'navigationButtonType' => $attributes['navigationButtonType'] ?? 'icon', |
| 349 |
) |
| 350 |
); |
| 351 |
|
| 352 |
$images_markup = ''; |
| 353 |
foreach ( $attachment_ids as $attachment_id ) { |
| 354 |
$images_markup .= gutenberg_block_core_gallery_render_dynamic_image( $attachment_id, $attributes, $image_context ); |
| 355 |
} |
| 356 |
|
| 357 |
// Build the wrapper rather than parsing/splicing saved markup. |
| 358 |
// `get_block_wrapper_attributes()` supplies the block-support |
| 359 |
// classes/styles (align, color, border, spacing, anchor id); the layout |
| 360 |
// render filter adds the flex layout classes downstream — the same way a |
| 361 |
// static gallery's wrapper is composed (`useBlockProps.save()` plus that |
| 362 |
// filter). Only the gallery-specific classes are added explicitly, and |
| 363 |
// they mirror `save.js` (kept in sync deliberately — see that file). |
| 364 |
$gallery_classes = 'wp-block-gallery has-nested-images'; |
| 365 |
$gallery_classes .= isset( $attributes['columns'] ) |
| 366 |
? ' columns-' . (int) $attributes['columns'] |
| 367 |
: ' columns-default'; |
| 368 |
if ( $attributes['imageCrop'] ?? true ) { |
| 369 |
$gallery_classes .= ' is-cropped'; |
| 370 |
} |
| 371 |
$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $gallery_classes ) ); |
| 372 |
|
| 373 |
// In dynamic mode `save.js` persists only the gallery-level caption, so |
| 374 |
// `$content` is the saved `<figcaption>` (or empty). Append it after the |
| 375 |
// resolved images — matching the static gallery's `{images}{caption}` |
| 376 |
// order — without parsing it. |
| 377 |
$content = sprintf( '<figure %s>%s%s</figure>', $wrapper_attributes, $images_markup, $content ); |
| 378 |
} |
| 379 |
|
| 380 |
// Adds a style tag for the --wp--style--unstable-gallery-gap var. |
| 381 |
// The Gallery block needs to recalculate Image block width based on |
| 382 |
// the current gap setting in order to maintain the number of flex columns |
| 383 |
// so a css var is added to allow this. |
| 384 |
|
| 385 |
$style_attr = is_array( $attributes['style'] ?? null ) |
| 386 |
? $attributes['style'] |
| 387 |
: array(); |
| 388 |
if ( |
| 389 |
defined( 'IS_GUTENBERG_PLUGIN' ) && |
| 390 |
IS_GUTENBERG_PLUGIN && |
| 391 |
function_exists( 'gutenberg_resolve_style_state_aliases' ) |
| 392 |
) { |
| 393 |
$style_attr = gutenberg_resolve_style_state_aliases( $style_attr, 'core/gallery' ); |
| 394 |
} |
| 395 |
|
| 396 |
$unique_gallery_classname = wp_unique_id( 'wp-block-gallery-' ); |
| 397 |
$processed_content = new WP_HTML_Tag_Processor( $content ); |
| 398 |
$processed_content->next_tag(); |
| 399 |
$processed_content->add_class( $unique_gallery_classname ); |
| 400 |
|
| 401 |
// --gallery-block--gutter-size is deprecated. --wp--style--gallery-gap-default should be used by themes that want to set a default |
| 402 |
// gap on the gallery. |
| 403 |
$fallback_gap = 'var( --wp--style--gallery-gap-default, var( --gallery-block--gutter-size, var( --wp--style--block-gap, 0.5em ) ) )'; |
| 404 |
|
| 405 |
if ( null === $global_styles ) { |
| 406 |
$global_styles = function_exists( 'gutenberg_get_global_styles' ) ? gutenberg_get_global_styles() : array(); |
| 407 |
} |
| 408 |
|
| 409 |
$global_gallery_styles = $global_styles['blocks']['core/gallery'] ?? array(); |
| 410 |
$global_gallery_gap = $global_gallery_styles['spacing']['blockGap'] ?? $fallback_gap; |
| 411 |
$has_block_gap = is_array( $style_attr['spacing'] ?? null ) && array_key_exists( 'blockGap', $style_attr['spacing'] ); |
| 412 |
// Prefer the block's own gap value, then Gallery global styles. Missing |
| 413 |
// values fall back to the Gallery blockGap default. |
| 414 |
$block_gap = $has_block_gap |
| 415 |
? $style_attr['spacing']['blockGap'] |
| 416 |
: $global_gallery_gap; |
| 417 |
$gap_column = gutenberg_block_core_gallery_get_column_gap_value( $block_gap, $fallback_gap ); |
| 418 |
|
| 419 |
// Set the CSS variable to the column value for Gallery's flex width calculations. |
| 420 |
$gallery_styles = array( |
| 421 |
array( |
| 422 |
'selector' => ".wp-block-gallery.{$unique_gallery_classname}", |
| 423 |
'declarations' => array( |
| 424 |
'--wp--style--unstable-gallery-gap' => $gap_column, |
| 425 |
), |
| 426 |
), |
| 427 |
); |
| 428 |
|
| 429 |
$global_settings = gutenberg_get_global_settings(); |
| 430 |
$viewport_settings = $global_settings['viewport'] ?? null; |
| 431 |
$responsive_media_queries = array(); |
| 432 |
foreach ( array( 'WP_Theme_JSON_Gutenberg', 'WP_Theme_JSON' ) as $theme_json_class_name ) { |
| 433 |
if ( method_exists( $theme_json_class_name, 'get_viewport_media_queries' ) ) { |
| 434 |
$responsive_media_queries = $theme_json_class_name::get_viewport_media_queries( $viewport_settings ); |
| 435 |
break; |
| 436 |
} |
| 437 |
} |
| 438 |
|
| 439 |
foreach ( $responsive_media_queries as $breakpoint => $media_query ) { |
| 440 |
$viewport_style = $style_attr[ $breakpoint ] ?? null; |
| 441 |
$has_viewport_block_gap = is_array( $viewport_style ) && |
| 442 |
is_array( $viewport_style['spacing'] ?? null ) && |
| 443 |
array_key_exists( 'blockGap', $viewport_style['spacing'] ); |
| 444 |
$has_global_viewport_block_gap = is_array( $global_gallery_styles[ $breakpoint ]['spacing'] ?? null ) && |
| 445 |
array_key_exists( 'blockGap', $global_gallery_styles[ $breakpoint ]['spacing'] ); |
| 446 |
|
| 447 |
// Viewport-specific block values win. Gallery global viewport values |
| 448 |
// only apply when the block has no base gap, so they do not override an instance value. |
| 449 |
if ( $has_viewport_block_gap ) { |
| 450 |
$viewport_gap = $viewport_style['spacing']['blockGap']; |
| 451 |
} elseif ( ! $has_block_gap && $has_global_viewport_block_gap ) { |
| 452 |
$viewport_gap = $global_gallery_styles[ $breakpoint ]['spacing']['blockGap']; |
| 453 |
} else { |
| 454 |
continue; |
| 455 |
} |
| 456 |
|
| 457 |
if ( null === $viewport_gap ) { |
| 458 |
continue; |
| 459 |
} |
| 460 |
|
| 461 |
$gallery_styles[] = array( |
| 462 |
'selector' => ".wp-block-gallery.{$unique_gallery_classname}", |
| 463 |
'declarations' => array( |
| 464 |
'--wp--style--unstable-gallery-gap' => gutenberg_block_core_gallery_get_column_gap_value( |
| 465 |
$viewport_gap, |
| 466 |
$fallback_gap |
| 467 |
), |
| 468 |
), |
| 469 |
'rules_group' => $media_query, |
| 470 |
); |
| 471 |
} |
| 472 |
|
| 473 |
gutenberg_style_engine_get_stylesheet_from_css_rules( |
| 474 |
$gallery_styles, |
| 475 |
array( 'context' => 'block-supports' ) |
| 476 |
); |
| 477 |
|
| 478 |
// The WP_HTML_Tag_Processor class calls get_updated_html() internally |
| 479 |
// when the instance is treated as a string, but here we explicitly |
| 480 |
// convert it to a string. |
| 481 |
$updated_content = $processed_content->get_updated_html(); |
| 482 |
|
| 483 |
/* |
| 484 |
* Randomize the order of image blocks. Ideally we should shuffle |
| 485 |
* the `$parsed_block['innerBlocks']` via the `render_block_data` hook. |
| 486 |
* However, this hook doesn't apply inner block updates when blocks are |
| 487 |
* nested. |
| 488 |
* @todo In the future, if this hook supports updating innerBlocks in |
| 489 |
* nested blocks, it should be refactored. |
| 490 |
* |
| 491 |
* @see: https://github.com/WordPress/gutenberg/pull/58733 |
| 492 |
*/ |
| 493 |
if ( ! empty( $attributes['randomOrder'] ) ) { |
| 494 |
// This pattern matches figure elements with the `wp-block-image` |
| 495 |
// class to avoid the gallery's wrapping `figure` element and |
| 496 |
// extract images only. |
| 497 |
$pattern = '/<figure[^>]*\bwp-block-image\b[^>]*>.*?<\/figure>/s'; |
| 498 |
|
| 499 |
preg_match_all( $pattern, $updated_content, $matches ); |
| 500 |
if ( $matches ) { |
| 501 |
$image_blocks = $matches[0]; |
| 502 |
shuffle( $image_blocks ); |
| 503 |
|
| 504 |
$i = 0; |
| 505 |
$updated_content = preg_replace_callback( |
| 506 |
$pattern, |
| 507 |
static function () use ( $image_blocks, &$i ) { |
| 508 |
return $image_blocks[ $i++ ]; |
| 509 |
}, |
| 510 |
$updated_content |
| 511 |
); |
| 512 |
} |
| 513 |
} |
| 514 |
|
| 515 |
// Gets all image IDs from the state that match this gallery's ID. |
| 516 |
$state = wp_interactivity_state( 'core/image' ); |
| 517 |
$gallery_id = $block->context['galleryId'] ?? null; |
| 518 |
$image_ids = array(); |
| 519 |
|
| 520 |
// Extracts image IDs from state metadata that match the current gallery ID. |
| 521 |
if ( isset( $gallery_id ) && isset( $state['metadata'] ) ) { |
| 522 |
foreach ( $state['metadata'] as $image_id => $metadata ) { |
| 523 |
if ( isset( $metadata['galleryId'] ) && $metadata['galleryId'] === $gallery_id ) { |
| 524 |
$image_ids[] = $image_id; |
| 525 |
} |
| 526 |
} |
| 527 |
} |
| 528 |
|
| 529 |
// If there are image IDs associated with this gallery, set interactivity |
| 530 |
// attributes and order metadata for lightbox navigation. |
| 531 |
if ( ! empty( $image_ids ) ) { |
| 532 |
$total = count( $image_ids ); |
| 533 |
$lightbox_index = 0; |
| 534 |
$processor = new WP_HTML_Tag_Processor( $updated_content ); |
| 535 |
$processor->next_tag(); |
| 536 |
$processor->set_attribute( 'data-wp-interactive', 'core/gallery' ); |
| 537 |
$processor->set_attribute( |
| 538 |
'data-wp-context', |
| 539 |
wp_json_encode( |
| 540 |
array( 'galleryId' => $gallery_id ), |
| 541 |
JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_AMP |
| 542 |
) |
| 543 |
); |
| 544 |
while ( $processor->next_tag( 'figure' ) ) { |
| 545 |
$wp_key = $processor->get_attribute( 'data-wp-key' ); |
| 546 |
if ( $wp_key && isset( $state['metadata'][ $wp_key ] ) ) { |
| 547 |
$alt = $state['metadata'][ $wp_key ]['alt']; |
| 548 |
wp_interactivity_state( |
| 549 |
'core/image', |
| 550 |
array( |
| 551 |
'metadata' => array( |
| 552 |
$wp_key => array( |
| 553 |
'customAriaLabel' => empty( $alt ) |
| 554 |
/* translators: %1$s: current image index, %2$s: total number of images */ |
| 555 |
? sprintf( __( 'Enlarged image %1$s of %2$s' ), $lightbox_index + 1, $total ) |
| 556 |
/* translators: %1$s: current image index, %2$s: total number of images, %3$s: Image alt text */ |
| 557 |
: sprintf( __( 'Enlarged image %1$s of %2$s: %3$s' ), $lightbox_index + 1, $total, $alt ), |
| 558 |
/* translators: %1$s: current image index, %2$s: total number of images */ |
| 559 |
'triggerButtonAriaLabel' => sprintf( __( 'Enlarge %1$s of %2$s' ), $lightbox_index + 1, $total ), |
| 560 |
'order' => $lightbox_index, |
| 561 |
), |
| 562 |
), |
| 563 |
) |
| 564 |
); |
| 565 |
++$lightbox_index; |
| 566 |
} |
| 567 |
} |
| 568 |
return $processor->get_updated_html(); |
| 569 |
} |
| 570 |
|
| 571 |
return $updated_content; |
| 572 |
} |
| 573 |
|
| 574 |
/** |
| 575 |
* Registers the `core/gallery` block on server. |
| 576 |
* |
| 577 |
* @since 5.9.0 |
| 578 |
*/ |
| 579 |
function gutenberg_register_block_core_gallery() { |
| 580 |
register_block_type_from_metadata( |
| 581 |
__DIR__ . '/gallery', |
| 582 |
array( |
| 583 |
'render_callback' => 'gutenberg_block_core_gallery_render', |
| 584 |
) |
| 585 |
); |
| 586 |
} |
| 587 |
|
| 588 |
add_action( 'init', 'gutenberg_register_block_core_gallery', 20 ); |
| 589 |
|
