BlockTemplatesController.php
<?php
declare( strict_types=1 );
namespace Automattic\WooCommerce\Blocks;
use Automattic\WooCommerce\Blocks\Utils\BlockTemplateUtils;
use Automattic\WooCommerce\Blocks\Templates\ComingSoonTemplate;
/**
* BlockTemplatesController class.
*
* @internal
*/
class BlockTemplatesController {
/**
* Directory which contains all templates
*
* @var string
*/
const TEMPLATES_ROOT_DIR = 'templates';
/**
* Initialization method.
*/
public function init() {
add_filter( 'pre_get_block_file_template', array( $this, 'get_block_file_template' ), 10, 3 );
add_filter( 'get_block_template', array( $this, 'add_block_template_details' ), 10, 3 );
add_filter( 'get_block_templates', array( $this, 'run_hooks_on_block_templates' ), 10, 3 );
add_filter( 'get_block_templates', array( $this, 'add_db_templates_with_woo_slug' ), 10, 3 );
add_filter( 'rest_pre_insert_wp_template', array( $this, 'dont_load_templates_for_suggestions' ), 10, 1 );
add_filter( 'block_type_metadata_settings', array( $this, 'add_plugin_templates_parts_support' ), 10, 2 );
add_filter( 'block_type_metadata_settings', array( $this, 'prevent_shortcodes_html_breakage' ), 10, 2 );
add_action( 'current_screen', array( $this, 'hide_template_selector_in_cart_checkout_pages' ), 10 );
add_action( 'wp_enqueue_scripts', [ $this, 'dequeue_legacy_scripts' ], 20 );
}
/**
* Dequeue legacy scripts that have no usage with block themes.
*/
public function dequeue_legacy_scripts() {
if ( ! wp_is_block_theme() ) {
return;
}
if ( is_product() ) {
wp_dequeue_script( 'wc-single-product' );
}
}
/**
* Renders the `core/template-part` block on the server.
*
* This is done because the core handling for template parts only supports templates from the current theme, not
* from a plugin.
*
* @param array $attributes The block attributes.
* @return string The render.
*/
public function render_woocommerce_template_part( $attributes ) {
if ( isset( $attributes['theme'] ) && 'woocommerce/woocommerce' === $attributes['theme'] ) {
$template_part = get_block_template( $attributes['theme'] . '//' . $attributes['slug'], 'wp_template_part' );
if ( $template_part && ! empty( $template_part->content ) ) {
$content = do_blocks( $template_part->content );
if ( empty( $attributes['tagName'] ) || tag_escape( $attributes['tagName'] ) !== $attributes['tagName'] ) {
$html_tag = 'div';
} else {
$html_tag = esc_attr( $attributes['tagName'] );
}
$wrapper_attributes = get_block_wrapper_attributes();
return "<$html_tag $wrapper_attributes>" . str_replace( ']]>', ']]>', $content ) . "</$html_tag>";
}
}
return function_exists( '\gutenberg_render_block_core_template_part' ) ? \gutenberg_render_block_core_template_part( $attributes ) : \render_block_core_template_part( $attributes );
}
/**
* By default, the Template Part Block only supports template parts that are in the current theme directory.
* This render_callback wrapper allows us to add support for plugin-housed template parts.
*
* @param array $settings Array of determined settings for registering a block type.
* @param array $metadata Metadata provided for registering a block type.
*/
public function add_plugin_templates_parts_support( $settings, $metadata ) {
if (
isset( $metadata['name'], $settings['render_callback'] ) &&
'core/template-part' === $metadata['name'] &&
in_array( $settings['render_callback'], array( 'render_block_core_template_part', 'gutenberg_render_block_core_template_part' ), true )
) {
$settings['render_callback'] = array( $this, 'render_woocommerce_template_part' );
}
return $settings;
}
/**
* Prevents shortcodes in templates having their HTML content broken by wpautop.
*
* @see https://core.trac.wordpress.org/ticket/58366 for more info.
*
* @param array $settings Array of determined settings for registering a block type.
* @param array $metadata Metadata provided for registering a block type.
*/
public function prevent_shortcodes_html_breakage( $settings, $metadata ) {
if (
isset( $metadata['name'], $settings['render_callback'] ) &&
'core/shortcode' === $metadata['name']
) {
$settings['original_render_callback'] = $settings['render_callback'];
$settings['render_callback'] = function ( $attributes, $content ) use ( $settings ) {
// The shortcode has already been rendered, so look for the cart/checkout HTML.
if ( strstr( $content, 'woocommerce-cart-form' ) || strstr( $content, 'wc-empty-cart-message' ) || strstr( $content, 'woocommerce-checkout-form' ) ) {
// Return early before wpautop runs again.
return $content;
}
$render_callback = $settings['original_render_callback'];
return $render_callback( $attributes, $content );
};
}
return $settings;
}
/**
* Prevents the pages that are assigned as Cart/Checkout from showing the "template" selector in the page-editor.
* We want to avoid this flow and point users towards the Site Editor instead.
*
* @return void
*/
public function hide_template_selector_in_cart_checkout_pages() {
if ( ! is_admin() ) {
return;
}
$current_screen = get_current_screen();
// phpcs:ignore WordPress.Security.NonceVerification.Recommended
if ( $current_screen && 'page' === $current_screen->id && ! empty( $_GET['post'] ) && in_array( absint( $_GET['post'] ), array( wc_get_page_id( 'cart' ), wc_get_page_id( 'checkout' ) ), true ) ) {
wp_add_inline_style( 'wc-blocks-editor-style', '.edit-post-post-template { display: none; }' );
}
}
/**
* This function checks if there's a block template file in `woocommerce/templates/templates/`
* to return to pre_get_posts short-circuiting the query in Gutenberg.
*
* @param \WP_Block_Template|null $template Return a block template object to short-circuit the default query,
* or null to allow WP to run its normal queries.
* @param string $id Template unique identifier (example: theme_slug//template_slug).
* @param string $template_type wp_template or wp_template_part.
*
* @return mixed|\WP_Block_Template|\WP_Error
*/
public function get_block_file_template( $template, $id, $template_type ) {
$template_name_parts = explode( '//', $id );
if ( count( $template_name_parts ) < 2 ) {
return $template;
}
list( $template_id, $template_slug ) = $template_name_parts;
// This is a real edge-case, we are supporting users who have saved templates under the deprecated slug. See its definition for more information.
// You can likely ignore this code unless you're supporting/debugging early customised templates.
if ( BlockTemplateUtils::DEPRECATED_PLUGIN_SLUG === strtolower( $template_id ) ) {
// Because we are using get_block_templates we have to unhook this method to prevent a recursive loop where this filter is applied.
remove_filter( 'pre_get_block_file_template', array( $this, 'get_block_file_template' ), 10, 3 );
$template_with_deprecated_id = get_block_template( $id, $template_type );
// Let's hook this method back now that we have used the function.
add_filter( 'pre_get_block_file_template', array( $this, 'get_block_file_template' ), 10, 3 );
if ( null !== $template_with_deprecated_id ) {
return $template_with_deprecated_id;
}
}
// If we are not dealing with a WooCommerce template let's return early and let it continue through the process.
if ( BlockTemplateUtils::PLUGIN_SLUG !== $template_id ) {
return $template;
}
// If we don't have a template let Gutenberg do its thing.
if ( ! $this->block_template_is_available( $template_slug, $template_type ) ) {
return $template;
}
$directory = BlockTemplateUtils::get_templates_directory( $template_type );
$template_file_path = $directory . '/' . $template_slug . '.html';
$template_object = BlockTemplateUtils::create_new_block_template_object( $template_file_path, $template_type, $template_slug );
$template_built = BlockTemplateUtils::build_template_result_from_file( $template_object, $template_type );
if ( null !== $template_built ) {
return $template_built;
}
// Hand back over to Gutenberg if we can't find a template.
return $template;
}
/**
* Add the template title and description to WooCommerce templates.
*
* @param WP_Block_Template|null $block_template The found block template, or null if there isn't one.
* @param string $id Template unique identifier (example: 'theme_slug//template_slug').
* @param array $template_type Template type: 'wp_template' or 'wp_template_part'.
* @return WP_Block_Template|null
*/
public function add_block_template_details( $block_template, $id, $template_type ) {
return BlockTemplateUtils::update_template_data( $block_template, $template_type );
}
/**
* Run hooks on block templates.
*
* @param array $templates The block templates.
* @return array The block templates.
*/
public function run_hooks_on_block_templates( $templates ) {
// There is a bug in the WordPress implementation that causes block hooks not to run in templates registered
// via the Template Registration API. Because of this, we run them manually.
// https://github.com/WordPress/gutenberg/issues/71139.
foreach ( $templates as $template ) {
if ( 'plugin' === $template->source && 'woocommerce' === $template->plugin ) {
$template->content = apply_block_hooks_to_content( $template->content, $template, 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata' );
}
}
return $templates;
}
/**
* Add the block template objects currently saved in the database with the WooCommerce slug.
* That is, templates that have been customised before WooCommerce started to use the
* Template Registration API.
*
* @param array $query_result Array of template objects.
* @param array $query Optional. Arguments to retrieve templates.
* @param string $template_type wp_template or wp_template_part.
* @return array
*/
public function add_db_templates_with_woo_slug( $query_result, $query, $template_type ) {
$slugs = isset( $query['slug__in'] ) ? $query['slug__in'] : array();
if ( ! BlockTemplateUtils::supports_block_templates( $template_type ) && ! in_array( ComingSoonTemplate::SLUG, $slugs, true ) ) {
return $query_result;
}
// For templates, we only need to load templates from the database. For
// template parts, we also need to load them from the filesystem, as
// there is no Template registration API for template parts.
$template_files = 'wp_template' === $template_type ? BlockTemplateUtils::get_block_templates_from_db( $slugs, $template_type ) : $this->get_block_templates( $slugs, $template_type );
$new_templates = array();
foreach ( $template_files as $template_file ) {
// It would be custom if the template was modified in the editor, so if it's not custom we can load it from
// the filesystem.
if (
'custom' === $template_file->source &&
(
BlockTemplateUtils::PLUGIN_SLUG === $template_file->theme ||
BlockTemplateUtils::DEPRECATED_PLUGIN_SLUG === $template_file->theme
)
) {
array_unshift( $new_templates, $template_file );
continue;
}
// We only need to build templates from the filesystem for template parts.
// Regular templates are handled by the Template registration API.
if ( 'wp_template_part' === $template_type ) {
$theme_slug = get_stylesheet();
$possible_template_ids = [
$theme_slug . '//' . $template_file->slug,
$theme_slug . '//' . BlockTemplateUtils::DIRECTORY_NAMES['TEMPLATE_PARTS'] . '/' . $template_file->slug,
$theme_slug . '//' . BlockTemplateUtils::DIRECTORY_NAMES['DEPRECATED_TEMPLATE_PARTS'] . '/' . $template_file->slug,
];
$is_custom = false;
$query_result_template_ids = array_column( $query_result, 'id' );
foreach ( $possible_template_ids as $template_id ) {
if ( in_array( $template_id, $query_result_template_ids, true ) ) {
$is_custom = true;
break;
}
}
$fits_slug_query =
! isset( $query['slug__in'] ) || in_array( $template_file->slug, $query['slug__in'], true );
$fits_area_query =
! isset( $query['area'] ) || ( property_exists( $template_file, 'area' ) && $template_file->area === $query['area'] );
$is_from_filesystem = isset( $template_file->path );
$should_include = ! $is_custom && $fits_slug_query && $fits_area_query && $is_from_filesystem;
if ( $should_include ) {
$template = BlockTemplateUtils::build_template_result_from_file( $template_file, $template_type );
$query_result[] = $template;
}
}
}
$query_result = array_merge( $new_templates, $query_result );
if ( count( $new_templates ) > 0 ) {
// If there are certain templates that have been customised with the `woocommerce/woocommerce` slug,
// We prioritize them over the theme and WC templates. That is, we remove the theme and WC templates
// from the results and only keep the customised ones.
$query_result = BlockTemplateUtils::remove_templates_with_custom_alternative( $query_result );
// There is the chance that the user customized the default template, installed a theme with a custom template
// and customized that one as well. When that happens, duplicates might appear in the list.
// See: https://github.com/woocommerce/woocommerce/issues/42220.
$query_result = BlockTemplateUtils::remove_duplicate_customized_templates( $query_result );
}
/**
* WC templates from theme aren't included in `$this->get_block_templates()` but are handled by Gutenberg.
* We need to do additional search through all templates file to update title and description for WC
* templates that aren't listed in theme.json.
*/
$query_result = array_map(
function ( $template ) use ( $template_type ) {
return BlockTemplateUtils::update_template_data( $template, $template_type );
},
$query_result
);
return $query_result;
}
/**
* When creating a template from the WP suggestion, don't load the templates with the WooCommerce slug.
* Otherwise they take precedence and the new template can't be created.
*
* @param stdClass $prepared_post An object representing a single post prepared
* for inserting or updating the database.
*/
public function dont_load_templates_for_suggestions( $prepared_post ) {
if ( isset( $prepared_post->meta_input['is_wp_suggestion'] ) ) {
remove_filter( 'get_block_templates', array( $this, 'add_db_templates_with_woo_slug' ), 10, 3 );
}
return $prepared_post;
}
/**
* Gets the templates from the WooCommerce blocks directory, skipping those for which a template already exists
* in the theme directory.
*
* @param string[] $slugs An array of slugs to filter templates by. Templates whose slug does not match will not be returned.
* @param array $already_found_templates Templates that have already been found, these are customised templates that are loaded from the database.
* @param string $template_type wp_template or wp_template_part.
*
* @return array Templates from the WooCommerce blocks plugin directory.
*/
public function get_block_templates_from_woocommerce( $slugs, $already_found_templates, $template_type = 'wp_template' ) {
$template_files = BlockTemplateUtils::get_template_paths( $template_type );
$templates = array();
foreach ( $template_files as $template_file ) {
// Skip the template if it's blockified, and we should only use classic ones.
if ( ! BlockTemplateUtils::should_use_blockified_product_grid_templates() && strpos( $template_file, 'blockified' ) !== false ) {
continue;
}
$template_slug = BlockTemplateUtils::generate_template_slug_from_path( $template_file );
// This template does not have a slug we're looking for. Skip it.
if ( is_array( $slugs ) && count( $slugs ) > 0 && ! in_array( $template_slug, $slugs, true ) ) {
continue;
}
// If the theme already has a template, or the template is already in the list (i.e. it came from the
// database) then we should not overwrite it with the one from the filesystem.
if (
BlockTemplateUtils::theme_has_template( $template_slug ) ||
count(
array_filter(
$already_found_templates,
function ( $template ) use ( $template_slug ) {
$template_obj = (object) $template; //phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.Found
return $template_obj->slug === $template_slug;
}
)
) > 0 ) {
continue;
}
// At this point the template only exists in the Blocks filesystem and has not been saved in the DB,
// or superseded by the theme.
$templates[] = BlockTemplateUtils::create_new_block_template_object( $template_file, $template_type, $template_slug );
}
return $templates;
}
/**
* Get and build the block template objects from the block template files.
*
* @param array $slugs An array of slugs to retrieve templates for.
* @param string $template_type wp_template or wp_template_part.
*
* @return array WP_Block_Template[] An array of block template objects.
*/
public function get_block_templates( $slugs = array(), $template_type = 'wp_template' ) {
$templates_from_db = BlockTemplateUtils::get_block_templates_from_db( $slugs, $template_type );
$templates_from_woo = $this->get_block_templates_from_woocommerce( $slugs, $templates_from_db, $template_type );
return array_merge( $templates_from_db, $templates_from_woo );
}
/**
* Checks whether a block template with that name exists in Woo Blocks
*
* @param string $template_name Template to check.
* @param array $template_type wp_template or wp_template_part.
*
* @return boolean
*/
public function block_template_is_available( $template_name, $template_type = 'wp_template' ) {
if ( ! $template_name ) {
return false;
}
$directory = BlockTemplateUtils::get_templates_directory( $template_type ) . '/' . $template_name . '.html';
return is_readable(
$directory
) || $this->get_block_templates( array( $template_name ), $template_type );
}
}
