diff options
Diffstat (limited to 'wp-includes/blocks/file.php')
| -rw-r--r-- | wp-includes/blocks/file.php | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/wp-includes/blocks/file.php b/wp-includes/blocks/file.php new file mode 100644 index 0000000..042ea89 --- /dev/null +++ b/wp-includes/blocks/file.php @@ -0,0 +1,100 @@ +<?php +/** + * Server-side rendering of the `core/file` block. + * + * @package WordPress + */ + +/** + * When the `core/file` block is rendering, check if we need to enqueue the `wp-block-file-view` script. + * + * @param array $attributes The block attributes. + * @param string $content The block content. + * @param WP_Block $block The parsed block. + * + * @return string Returns the block content. + */ +function render_block_core_file( $attributes, $content, $block ) { + $should_load_view_script = ! empty( $attributes['displayPreview'] ); + $view_js_file = 'wp-block-file-view'; + // If the script already exists, there is no point in removing it from viewScript. + if ( ! wp_script_is( $view_js_file ) ) { + $script_handles = $block->block_type->view_script_handles; + + // If the script is not needed, and it is still in the `view_script_handles`, remove it. + if ( ! $should_load_view_script && in_array( $view_js_file, $script_handles, true ) ) { + $block->block_type->view_script_handles = array_diff( $script_handles, array( $view_js_file ) ); + } + // If the script is needed, but it was previously removed, add it again. + if ( $should_load_view_script && ! in_array( $view_js_file, $script_handles, true ) ) { + $block->block_type->view_script_handles = array_merge( $script_handles, array( $view_js_file ) ); + } + } + + // Update object's aria-label attribute if present in block HTML. + + // Match an aria-label attribute from an object tag. + $pattern = '@<object.+(?<attribute>aria-label="(?<filename>[^"]+)?")@i'; + $content = preg_replace_callback( + $pattern, + static function ( $matches ) { + $filename = ! empty( $matches['filename'] ) ? $matches['filename'] : ''; + $has_filename = ! empty( $filename ) && 'PDF embed' !== $filename; + $label = $has_filename ? + sprintf( + /* translators: %s: filename. */ + __( 'Embed of %s.' ), + $filename + ) + : __( 'PDF embed' ); + + return str_replace( $matches['attribute'], sprintf( 'aria-label="%s"', $label ), $matches[0] ); + }, + $content + ); + + // If it uses the Interactivity API, add the directives. + if ( $should_load_view_script ) { + $processor = new WP_HTML_Tag_Processor( $content ); + $processor->next_tag(); + $processor->set_attribute( 'data-wp-interactive', '' ); + $processor->next_tag( 'object' ); + $processor->set_attribute( 'data-wp-bind--hidden', '!selectors.core.file.hasPdfPreview' ); + $processor->set_attribute( 'hidden', true ); + return $processor->get_updated_html(); + } + + return $content; +} + +/** + * Ensure that the view script has the `wp-interactivity` dependency. + * + * @since 6.4.0 + * + * @global WP_Scripts $wp_scripts + */ +function block_core_file_ensure_interactivity_dependency() { + global $wp_scripts; + if ( + isset( $wp_scripts->registered['wp-block-file-view'] ) && + ! in_array( 'wp-interactivity', $wp_scripts->registered['wp-block-file-view']->deps, true ) + ) { + $wp_scripts->registered['wp-block-file-view']->deps[] = 'wp-interactivity'; + } +} + +add_action( 'wp_print_scripts', 'block_core_file_ensure_interactivity_dependency' ); + +/** + * Registers the `core/file` block on server. + */ +function register_block_core_file() { + register_block_type_from_metadata( + __DIR__ . '/file', + array( + 'render_callback' => 'render_block_core_file', + ) + ); +} +add_action( 'init', 'register_block_core_file' ); |