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<?php |
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/** |
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* Temporary compatibility shims for features present in Gutenberg, pending |
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* upstream commit to the WordPress core source repository. Functions here |
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* exist only as long as necessary for corresponding WordPress support, and |
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* each should be associated with a Trac ticket. |
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* |
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* @package gutenberg |
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*/ |
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|
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/** |
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* These functions can be removed when plugin support requires WordPress 5.5.0+. |
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* |
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* @see https://core.trac.wordpress.org/ticket/50263 |
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* @see https://core.trac.wordpress.org/changeset/48141 |
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*/ |
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if ( ! function_exists( 'register_block_type_from_metadata' ) ) { |
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/** |
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* Removes the block asset's path prefix if provided. |
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* |
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* @since 5.5.0 |
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* |
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* @param string $asset_handle_or_path Asset handle or prefixed path. |
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* |
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* @return string Path without the prefix or the original value. |
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*/ |
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function remove_block_asset_path_prefix( $asset_handle_or_path ) { |
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$path_prefix = 'file:'; |
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if ( strpos( $asset_handle_or_path, $path_prefix ) !== 0 ) { |
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return $asset_handle_or_path; |
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} |
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return substr( |
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$asset_handle_or_path, |
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strlen( $path_prefix ) |
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); |
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} |
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|
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/** |
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* Generates the name for an asset based on the name of the block |
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* and the field name provided. |
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* |
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* @since 5.5.0 |
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* |
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* @param string $block_name Name of the block. |
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* @param string $field_name Name of the metadata field. |
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* |
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* @return string Generated asset name for the block's field. |
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*/ |
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function generate_block_asset_handle( $block_name, $field_name ) { |
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$field_mappings = array( |
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'editorScript' => 'editor-script', |
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'script' => 'script', |
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'editorStyle' => 'editor-style', |
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'style' => 'style', |
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); |
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return str_replace( '/', '-', $block_name ) . |
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'-' . $field_mappings[ $field_name ]; |
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} |
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|
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/** |
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* Finds a script handle for the selected block metadata field. It detects |
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* when a path to file was provided and finds a corresponding |
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* asset file with details necessary to register the script under |
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* automatically generated handle name. It returns unprocessed script handle |
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* otherwise. |
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* |
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* @since 5.5.0 |
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* |
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* @param array $metadata Block metadata. |
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* @param string $field_name Field name to pick from metadata. |
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* |
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* @return string|boolean Script handle provided directly or created through |
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* script's registration, or false on failure. |
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*/ |
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function register_block_script_handle( $metadata, $field_name ) { |
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if ( empty( $metadata[ $field_name ] ) ) { |
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return false; |
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} |
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$script_handle = $metadata[ $field_name ]; |
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$script_path = remove_block_asset_path_prefix( $metadata[ $field_name ] ); |
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if ( $script_handle === $script_path ) { |
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return $script_handle; |
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} |
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|
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$script_handle = generate_block_asset_handle( $metadata['name'], $field_name ); |
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$script_asset_path = realpath( |
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dirname( $metadata['file'] ) . '/' . |
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substr_replace( $script_path, '.asset.php', - strlen( '.js' ) ) |
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); |
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if ( ! file_exists( $script_asset_path ) ) { |
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$message = sprintf( |
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/* translators: %1: field name. %2: block name */ |
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__( 'The asset file for the "%1$s" defined in "%2$s" block definition is missing.', 'default' ), |
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$field_name, |
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$metadata['name'] |
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); |
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_doing_it_wrong( __FUNCTION__, $message, '5.5.0' ); |
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return false; |
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} |
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$script_asset = require( $script_asset_path ); |
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$result = wp_register_script( |
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$script_handle, |
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plugins_url( $script_path, $metadata['file'] ), |
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$script_asset['dependencies'], |
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$script_asset['version'] |
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); |
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return $result ? $script_handle : false; |
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} |
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|
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/** |
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* Finds a style handle for the block metadata field. It detects when a path |
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* to file was provided and registers the style under automatically |
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* generated handle name. It returns unprocessed style handle otherwise. |
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* |
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* @since 5.5.0 |
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* |
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* @param array $metadata Block metadata. |
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* @param string $field_name Field name to pick from metadata. |
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* |
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* @return string|boolean Style handle provided directly or created through |
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* style's registration, or false on failure. |
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*/ |
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function register_block_style_handle( $metadata, $field_name ) { |
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if ( empty( $metadata[ $field_name ] ) ) { |
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return false; |
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} |
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$style_handle = $metadata[ $field_name ]; |
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$style_path = remove_block_asset_path_prefix( $metadata[ $field_name ] ); |
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if ( $style_handle === $style_path ) { |
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return $style_handle; |
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} |
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|
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$style_handle = generate_block_asset_handle( $metadata['name'], $field_name ); |
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$block_dir = dirname( $metadata['file'] ); |
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$result = wp_register_style( |
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$style_handle, |
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plugins_url( $style_path, $metadata['file'] ), |
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array(), |
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filemtime( realpath( "$block_dir/$style_path" ) ) |
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); |
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return $result ? $style_handle : false; |
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} |
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|
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/** |
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* Registers a block type from metadata stored in the `block.json` file. |
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* |
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* @since 7.9.0 |
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* |
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* @param string $file_or_folder Path to the JSON file with metadata definition for |
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* the block or path to the folder where the `block.json` file is located. |
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* @param array $args { |
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* Optional. Array of block type arguments. Any arguments may be defined, however the |
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* ones described below are supported by default. Default empty array. |
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* |
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* @type callable $render_callback Callback used to render blocks of this block type. |
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* } |
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* @return WP_Block_Type|false The registered block type on success, or false on failure. |
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*/ |
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function register_block_type_from_metadata( $file_or_folder, $args = array() ) { |
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$filename = 'block.json'; |
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$metadata_file = ( substr( $file_or_folder, -strlen( $filename ) ) !== $filename ) ? |
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trailingslashit( $file_or_folder ) . $filename : |
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$file_or_folder; |
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if ( ! file_exists( $metadata_file ) ) { |
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return false; |
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} |
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|
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$metadata = json_decode( file_get_contents( $metadata_file ), true ); |
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if ( ! is_array( $metadata ) || empty( $metadata['name'] ) ) { |
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return false; |
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} |
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$metadata['file'] = $metadata_file; |
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|
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$settings = array(); |
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$property_mappings = array( |
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'title' => 'title', |
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'category' => 'category', |
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'parent' => 'parent', |
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'icon' => 'icon', |
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'description' => 'description', |
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'keywords' => 'keywords', |
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'attributes' => 'attributes', |
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'providesContext' => 'provides_context', |
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'usesContext' => 'uses_context', |
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// Deprecated: remove with Gutenberg 8.6 release. |
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'context' => 'context', |
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'supports' => 'supports', |
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'styles' => 'styles', |
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'example' => 'example', |
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); |
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|
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foreach ( $property_mappings as $key => $mapped_key ) { |
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if ( isset( $metadata[ $key ] ) ) { |
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$settings[ $mapped_key ] = $metadata[ $key ]; |
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} |
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} |
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|
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if ( ! empty( $metadata['editorScript'] ) ) { |
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$settings['editor_script'] = register_block_script_handle( |
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$metadata, |
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'editorScript' |
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); |
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} |
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|
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if ( ! empty( $metadata['script'] ) ) { |
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$settings['script'] = register_block_script_handle( |
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$metadata, |
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'script' |
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); |
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} |
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|
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if ( ! empty( $metadata['editorStyle'] ) ) { |
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$settings['editor_style'] = register_block_style_handle( |
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$metadata, |
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'editorStyle' |
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); |
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} |
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|
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if ( ! empty( $metadata['style'] ) ) { |
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$settings['style'] = register_block_style_handle( |
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$metadata, |
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'style' |
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); |
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} |
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|
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return register_block_type( |
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$metadata['name'], |
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array_merge( |
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$settings, |
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$args |
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) |
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); |
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} |
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} |
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|
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/** |
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* Extends block editor settings to include a list of image dimensions per size. |
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* |
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* This can be removed when plugin support requires WordPress 5.4.0+. |
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* |
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* @see https://core.trac.wordpress.org/ticket/49389 |
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* @see https://core.trac.wordpress.org/changeset/47240 |
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* |
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* @param array $settings Default editor settings. |
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* |
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* @return array Filtered editor settings. |
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*/ |
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function gutenberg_extend_settings_image_dimensions( $settings ) { |
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/* |
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* Only filter settings if: |
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* 1. `imageDimensions` is not already assigned, in which case it can be |
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* assumed to have been set from WordPress 5.4.0+ default settings. |
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* 2. `imageSizes` is an array. Plugins may run `block_editor_settings` |
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* directly and not provide all properties of the settings array. |
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*/ |
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if ( ! isset( $settings['imageDimensions'] ) && ! empty( $settings['imageSizes'] ) ) { |
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$image_dimensions = array(); |
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$all_sizes = wp_get_registered_image_subsizes(); |
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foreach ( $settings['imageSizes'] as $size ) { |
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$key = $size['slug']; |
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if ( isset( $all_sizes[ $key ] ) ) { |
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$image_dimensions[ $key ] = $all_sizes[ $key ]; |
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} |
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} |
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$settings['imageDimensions'] = $image_dimensions; |
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} |
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|
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return $settings; |
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} |
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add_filter( 'block_editor_settings', 'gutenberg_extend_settings_image_dimensions' ); |
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|
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/** |
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* Adds a polyfill for the WHATWG URL in environments which do not support it. |
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* The intention in how this action is handled is under the assumption that this |
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* code would eventually be placed at `wp_default_packages_vendor`, which is |
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* called as a result of `wp_default_packages` via the `wp_default_scripts`. |
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* |
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* This can be removed when plugin support requires WordPress 5.4.0+. |
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* |
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* The script registration occurs in `gutenberg_register_vendor_scripts`, which |
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* should be removed in coordination with this function. |
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* |
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* @see gutenberg_register_vendor_scripts |
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* @see https://core.trac.wordpress.org/ticket/49360 |
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* @see https://developer.mozilla.org/en-US/docs/Web/API/URL/URL |
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* @see https://developer.wordpress.org/reference/functions/wp_default_packages_vendor/ |
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* |
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* @since 7.3.0 |
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* |
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* @param WP_Scripts $scripts WP_Scripts object. |
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*/ |
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function gutenberg_add_url_polyfill( $scripts ) { |
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did_action( 'init' ) && $scripts->add_inline_script( |
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'wp-polyfill', |
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wp_get_script_polyfill( |
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$scripts, |
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array( |
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'window.URL && window.URL.prototype && window.URLSearchParams' => 'wp-polyfill-url', |
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) |
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) |
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); |
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} |
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add_action( 'wp_default_scripts', 'gutenberg_add_url_polyfill', 20 ); |
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|
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/** |
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* Adds a polyfill for DOMRect in environments which do not support it. |
| 307 |
* |
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* This can be removed when plugin support requires WordPress 5.4.0+. |
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* |
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* The script registration occurs in `gutenberg_register_vendor_scripts`, which |
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* should be removed in coordination with this function. |
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* |
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* @see gutenberg_register_vendor_scripts |
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* @see gutenberg_add_url_polyfill |
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* @see https://core.trac.wordpress.org/ticket/49360 |
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* @see https://developer.mozilla.org/en-US/docs/Web/API/DOMRect |
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* @see https://developer.wordpress.org/reference/functions/wp_default_packages_vendor/ |
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* |
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* @since 7.5.0 |
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* |
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* @param WP_Scripts $scripts WP_Scripts object. |
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*/ |
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function gutenberg_add_dom_rect_polyfill( $scripts ) { |
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did_action( 'init' ) && $scripts->add_inline_script( |
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'wp-polyfill', |
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wp_get_script_polyfill( |
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$scripts, |
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array( |
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'window.DOMRect' => 'wp-polyfill-dom-rect', |
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) |
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) |
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); |
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} |
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add_action( 'wp_default_scripts', 'gutenberg_add_dom_rect_polyfill', 20 ); |
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|
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/** |
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* Filters default block categories to substitute legacy category names with new |
| 338 |
* block categories. |
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* |
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* This can be removed when plugin support requires WordPress 5.5.0+. |
| 341 |
* |
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* @see https://core.trac.wordpress.org/ticket/50278 |
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* @see https://core.trac.wordpress.org/changeset/48177 |
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* |
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* @param array[] $default_categories Array of block categories. |
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* |
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* @return array[] Filtered block categories. |
| 348 |
*/ |
| 349 |
function gutenberg_replace_default_block_categories( $default_categories ) { |
| 350 |
$substitution = array( |
| 351 |
'common' => array( |
| 352 |
'slug' => 'text', |
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'title' => __( 'Text', 'gutenberg' ), |
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'icon' => null, |
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), |
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'formatting' => array( |
| 357 |
'slug' => 'media', |
| 358 |
'title' => __( 'Media', 'gutenberg' ), |
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'icon' => null, |
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), |
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'layout' => array( |
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'slug' => 'design', |
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'title' => __( 'Design', 'gutenberg' ), |
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'icon' => null, |
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), |
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); |
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|
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// Loop default categories to perform in-place substitution by legacy slug. |
| 369 |
foreach ( $default_categories as $i => $default_category ) { |
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$slug = $default_category['slug']; |
| 371 |
if ( isset( $substitution[ $slug ] ) ) { |
| 372 |
$default_categories[ $i ] = $substitution[ $slug ]; |
| 373 |
unset( $substitution[ $slug ] ); |
| 374 |
} |
| 375 |
} |
| 376 |
|
| 377 |
/* |
| 378 |
* At this point, `$substitution` should contain only the categories which |
| 379 |
* could not be in-place substituted with a default category, likely in the |
| 380 |
* case that core has since been updated to use the default categories. |
| 381 |
* Check to verify they exist. |
| 382 |
*/ |
| 383 |
$default_category_slugs = wp_list_pluck( $default_categories, 'slug' ); |
| 384 |
foreach ( $substitution as $i => $substitute_category ) { |
| 385 |
if ( in_array( $substitute_category['slug'], $default_category_slugs, true ) ) { |
| 386 |
unset( $substitution[ $i ] ); |
| 387 |
} |
| 388 |
} |
| 389 |
|
| 390 |
/* |
| 391 |
* Any substitutes remaining should be appended, as they are not yet |
| 392 |
* assigned in the default categories array. |
| 393 |
*/ |
| 394 |
return array_merge( $default_categories, array_values( $substitution ) ); |
| 395 |
} |
| 396 |
add_filter( 'block_categories', 'gutenberg_replace_default_block_categories' ); |
| 397 |
|
| 398 |
/** |
| 399 |
* Shim that hooks into `pre_render_block` so as to override `render_block` with |
| 400 |
* a function that assigns block context. |
| 401 |
* |
| 402 |
* This can be removed when plugin support requires WordPress 5.5.0+. |
| 403 |
* |
| 404 |
* @see https://core.trac.wordpress.org/ticket/49927 |
| 405 |
* @see https://core.trac.wordpress.org/changeset/48243 |
| 406 |
* |
| 407 |
* @param string|null $pre_render The pre-rendered content. Defaults to null. |
| 408 |
* @param array $parsed_block The parsed block being rendered. |
| 409 |
* |
| 410 |
* @return string String of rendered HTML. |
| 411 |
*/ |
| 412 |
function gutenberg_render_block_with_assigned_block_context( $pre_render, $parsed_block ) { |
| 413 |
global $post, $wp_query; |
| 414 |
|
| 415 |
/* |
| 416 |
* If a non-null value is provided, a filter has run at an earlier priority |
| 417 |
* and has already handled custom rendering and should take precedence. |
| 418 |
*/ |
| 419 |
if ( null !== $pre_render ) { |
| 420 |
return $pre_render; |
| 421 |
} |
| 422 |
|
| 423 |
$source_block = $parsed_block; |
| 424 |
|
| 425 |
/** This filter is documented in src/wp-includes/blocks.php */ |
| 426 |
$parsed_block = apply_filters( 'render_block_data', $parsed_block, $source_block ); |
| 427 |
|
| 428 |
$context = array(); |
| 429 |
|
| 430 |
if ( $post instanceof WP_Post ) { |
| 431 |
$context['postId'] = $post->ID; |
| 432 |
|
| 433 |
/* |
| 434 |
* The `postType` context is largely unnecessary server-side, since the |
| 435 |
* ID is usually sufficient on its own. That being said, since a block's |
| 436 |
* manifest is expected to be shared between the server and the client, |
| 437 |
* it should be included to consistently fulfill the expectation. |
| 438 |
*/ |
| 439 |
$context['postType'] = $post->post_type; |
| 440 |
} |
| 441 |
|
| 442 |
if ( isset( $wp_query->tax_query->queried_terms['category'] ) ) { |
| 443 |
$context['query'] = array( 'categoryIds' => array() ); |
| 444 |
|
| 445 |
foreach ( $wp_query->tax_query->queried_terms['category']['terms'] as $category_slug_or_id ) { |
| 446 |
$context['query']['categoryIds'][] = 'slug' === $wp_query->tax_query->queried_terms['category']['field'] ? get_cat_ID( $category_slug_or_id ) : $category_slug_or_id; |
| 447 |
} |
| 448 |
} |
| 449 |
|
| 450 |
/** |
| 451 |
* Filters the default context provided to a rendered block. |
| 452 |
* |
| 453 |
* @param array $context Default context. |
| 454 |
* @param array $parsed_block Block being rendered, filtered by `render_block_data`. |
| 455 |
*/ |
| 456 |
$context = apply_filters( 'render_block_context', $context, $parsed_block ); |
| 457 |
|
| 458 |
$block = new WP_Block( $parsed_block, $context ); |
| 459 |
|
| 460 |
return $block->render(); |
| 461 |
} |
| 462 |
add_filter( 'pre_render_block', 'gutenberg_render_block_with_assigned_block_context', 9, 2 ); |
| 463 |
|
| 464 |
/** |
| 465 |
* Shim that hooks into `wp_update_nav_menu_item` and makes it so that nav menu |
| 466 |
* items support a 'content' field. This field contains HTML and is used by nav |
| 467 |
* menu items with `type` set to `'html'`. |
| 468 |
* |
| 469 |
* Specifically, this shim makes it so that: |
| 470 |
* |
| 471 |
* 1) The `wp_update_nav_menu_item()` function supports setting |
| 472 |
* `'menu-item-content'` on a menu item. When merged to Core, this functionality |
| 473 |
* should exist in `wp_update_nav_menu_item()`. |
| 474 |
* |
| 475 |
* 2) The `customize_save` ajax action supports setting `'content'` on a nav |
| 476 |
* menu item. When merged to Core, this functionality should exist in |
| 477 |
* `WP_Customize_Manager::save()`. |
| 478 |
* |
| 479 |
* This shim can be removed when the Gutenberg plugin requires a WordPress |
| 480 |
* version that has the ticket below. |
| 481 |
* |
| 482 |
* @see https://core.trac.wordpress.org/ticket/50544 |
| 483 |
* |
| 484 |
* @param int $menu_id ID of the updated menu. |
| 485 |
* @param int $menu_item_db_id ID of the new menu item. |
| 486 |
* @param array $args An array of arguments used to update/add the menu item. |
| 487 |
*/ |
| 488 |
function gutenberg_update_nav_menu_item_content( $menu_id, $menu_item_db_id, $args ) { |
| 489 |
global $wp_customize; |
| 490 |
|
| 491 |
// Support setting content in customize_save admin-ajax.php requests by |
| 492 |
// grabbing the unsanitized $_POST values. |
| 493 |
if ( isset( $wp_customize ) ) { |
| 494 |
$values = $wp_customize->unsanitized_post_values(); |
| 495 |
if ( isset( $values[ "nav_menu_item[$menu_item_db_id]" ]['content'] ) ) { |
| 496 |
if ( is_string( $values[ "nav_menu_item[$menu_item_db_id]" ]['content'] ) ) { |
| 497 |
$args['menu-item-content'] = $values[ "nav_menu_item[$menu_item_db_id]" ]['content']; |
| 498 |
} elseif ( isset( $values[ "nav_menu_item[$menu_item_db_id]" ]['content']['raw'] ) ) { |
| 499 |
$args['menu-item-content'] = $values[ "nav_menu_item[$menu_item_db_id]" ]['content']['raw']; |
| 500 |
} |
| 501 |
} |
| 502 |
} |
| 503 |
|
| 504 |
$defaults = array( |
| 505 |
'menu-item-content' => '', |
| 506 |
); |
| 507 |
|
| 508 |
$args = wp_parse_args( $args, $defaults ); |
| 509 |
|
| 510 |
update_post_meta( $menu_item_db_id, '_menu_item_content', wp_slash( $args['menu-item-content'] ) ); |
| 511 |
} |
| 512 |
add_action( 'wp_update_nav_menu_item', 'gutenberg_update_nav_menu_item_content', 10, 3 ); |
| 513 |
|
| 514 |
/** |
| 515 |
* Shim that hooks into `wp_setup_nav_menu_items` and makes it so that nav menu |
| 516 |
* items have a 'content' field. This field contains HTML and is used by nav |
| 517 |
* menu items with `type` set to `'html'`. |
| 518 |
* |
| 519 |
* Specifically, this shim makes it so that the `wp_setup_nav_menu_item()` |
| 520 |
* function sets `content` on the returned menu item. When merged to Core, this |
| 521 |
* functionality should exist in `wp_setup_nav_menu_item()`. |
| 522 |
* |
| 523 |
* This shim can be removed when the Gutenberg plugin requires a WordPress |
| 524 |
* version that has the ticket below. |
| 525 |
* |
| 526 |
* @see https://core.trac.wordpress.org/ticket/50544 |
| 527 |
* |
| 528 |
* @param object $menu_item The menu item object. |
| 529 |
*/ |
| 530 |
function gutenberg_setup_html_nav_menu_item( $menu_item ) { |
| 531 |
if ( 'html' === $menu_item->type ) { |
| 532 |
$menu_item->type_label = __( 'HTML', 'gutenberg' ); |
| 533 |
$menu_item->content = ! isset( $menu_item->content ) ? get_post_meta( $menu_item->db_id, '_menu_item_content', true ) : $menu_item->content; |
| 534 |
} |
| 535 |
|
| 536 |
return $menu_item; |
| 537 |
} |
| 538 |
add_filter( 'wp_setup_nav_menu_item', 'gutenberg_setup_html_nav_menu_item' ); |
| 539 |
|
| 540 |
/** |
| 541 |
* Shim that hooks into `walker_nav_menu_start_el` and makes it so that the |
| 542 |
* default walker which renders a menu will correctly render the HTML associated |
| 543 |
* with any navigation menu item that has `type` set to `'html`'. |
| 544 |
* |
| 545 |
* Specifically, this shim makes it so that `Walker_Nav_Menu::start_el()` |
| 546 |
* renders the `content` of a nav menu item when its `type` is `'html'`. When |
| 547 |
* merged to Core, this functionality should exist in |
| 548 |
* `Walker_Nav_Menu::start_el()`. |
| 549 |
* |
| 550 |
* This shim can be removed when the Gutenberg plugin requires a WordPress |
| 551 |
* version that has the ticket below. |
| 552 |
* |
| 553 |
* @see https://core.trac.wordpress.org/ticket/50544 |
| 554 |
* |
| 555 |
* @param string $item_output The menu item's starting HTML output. |
| 556 |
* @param WP_Post $item Menu item data object. |
| 557 |
* @param int $depth Depth of menu item. Used for padding. |
| 558 |
* @param stdClass $args An object of wp_nav_menu() arguments. |
| 559 |
*/ |
| 560 |
function gutenberg_output_html_nav_menu_item( $item_output, $item, $depth, $args ) { |
| 561 |
if ( 'html' === $item->type ) { |
| 562 |
$item_output = $args->before; |
| 563 |
/** This filter is documented in wp-includes/post-template.php */ |
| 564 |
$item_output .= apply_filters( 'the_content', $item->content ); |
| 565 |
$item_output .= $args->after; |
| 566 |
} |
| 567 |
|
| 568 |
return $item_output; |
| 569 |
} |
| 570 |
add_filter( 'walker_nav_menu_start_el', 'gutenberg_output_html_nav_menu_item', 10, 4 ); |
| 571 |
|
