1141 lines
32 KiB
PHP
1141 lines
32 KiB
PHP
<?php
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/**
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* The ACF Blocks PHP code.
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*
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* @package ACF
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*/
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// Exit if accessed directly.
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defined( 'ABSPATH' ) || exit;
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// Register store.
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acf_register_store( 'block-types' );
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acf_register_store( 'block-cache' );
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// Register block.json support handlers.
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add_filter( 'block_type_metadata', 'acf_add_block_namespace' );
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add_filter( 'block_type_metadata_settings', 'acf_handle_json_block_registration', 99, 2 );
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add_action( 'acf_block_render_template', 'acf_block_render_template', 10, 6 );
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/**
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* Prefix block names for ACF blocks registered through block.json
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*
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* @since 6.0.0
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*
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* @param array $metadata The block metadata array.
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* @return array The original array with a prefixed block name if it's an ACF block.
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*/
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function acf_add_block_namespace( $metadata ) {
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if ( acf_is_acf_block_json( $metadata ) ) {
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// If the block doesn't already have a namespace, append ACF's.
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if ( strpos( $metadata['name'], '/' ) === false ) {
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$metadata['name'] = 'acf/' . acf_slugify( $metadata['name'] );
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}
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}
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return $metadata;
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}
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/**
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* Handle an ACF block registered through block.json
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*
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* @since 6.0.0
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*
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* @param array $settings The compiled block settings.
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* @param array $metadata The raw json metadata.
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*
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* @return array Block registration settings with ACF required additions.
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*/
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function acf_handle_json_block_registration( $settings, $metadata ) {
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if ( ! acf_is_acf_block_json( $metadata ) ) {
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return $settings;
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}
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// Setup ACF defaults.
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$settings = wp_parse_args(
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$settings,
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array(
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'render_template' => false,
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'render_callback' => false,
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'enqueue_style' => false,
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'enqueue_script' => false,
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'enqueue_assets' => false,
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'post_types' => array(),
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'uses_context' => array(),
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'supports' => array(),
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'attributes' => array(),
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'acf_block_version' => 2,
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'api_version' => 2,
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)
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);
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// Add user provided attributes to ACF's required defaults.
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$settings['attributes'] = wp_parse_args(
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acf_get_block_type_default_attributes( $metadata ),
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$settings['attributes']
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);
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// Add default ACF 'supports' settings.
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$settings['supports'] = wp_parse_args(
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$settings['supports'],
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array(
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'align' => true,
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'html' => false,
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'mode' => true,
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'jsx' => true,
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)
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);
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// Add default ACF 'uses_context' settings.
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$settings['uses_context'] = array_values(
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array_unique(
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array_merge(
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$settings['uses_context'],
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array(
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'postId',
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'postType',
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)
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)
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)
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);
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// Map custom ACF properties from the ACF key, with localization.
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$property_mappings = array(
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'renderCallback' => 'render_callback',
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'renderTemplate' => 'render_template',
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'mode' => 'mode',
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'blockVersion' => 'acf_block_version',
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'postTypes' => 'post_types',
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);
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$textdomain = ! empty( $metadata['textdomain'] ) ? $metadata['textdomain'] : 'acf';
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$i18n_schema = get_block_metadata_i18n_schema();
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foreach ( $property_mappings as $key => $mapped_key ) {
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if ( isset( $metadata['acf'][ $key ] ) ) {
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unset( $settings[ $key ] );
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$settings[ $mapped_key ] = $metadata['acf'][ $key ];
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if ( $textdomain && isset( $i18n_schema->$key ) ) {
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$settings[ $mapped_key ] = translate_settings_using_i18n_schema( $i18n_schema->$key, $settings[ $key ], $textdomain );
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}
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}
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}
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// Add the block name and registration path to settings.
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$settings['name'] = $metadata['name'];
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$settings['path'] = dirname( $metadata['file'] );
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acf_get_store( 'block-types' )->set( $metadata['name'], $settings );
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add_action( 'enqueue_block_editor_assets', 'acf_enqueue_block_assets' );
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// Ensure our render callback is used.
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$settings['render_callback'] = 'acf_render_block_callback';
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return $settings;
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}
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/**
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* Check if a block.json block is an ACF block.
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*
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* @since 6.0.0
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*
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* @param array $metadata The raw block metadata array.
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* @return bool
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*/
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function acf_is_acf_block_json( $metadata ) {
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return ( isset( $metadata['acf'] ) && $metadata['acf'] );
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}
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/**
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* Registers a block type.
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*
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* @date 18/2/19
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* @since 5.8.0
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*
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* @param array $block The block settings.
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* @return (array|false)
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*/
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function acf_register_block_type( $block ) {
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// Validate block type settings.
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$block = acf_validate_block_type( $block );
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/**
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* Filters the arguments for registering a block type.
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*
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* @since 5.8.9
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*
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* @param array $block The array of arguments for registering a block type.
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*/
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$block = apply_filters( 'acf/register_block_type_args', $block );
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// Require name.
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if ( ! $block['name'] ) {
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$message = __( 'Block type name is required.', 'acf' );
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_doing_it_wrong( __FUNCTION__, $message, '5.8.0' ); //phpcs:ignore -- escape not required.
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return false;
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}
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// Bail early if already exists.
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if ( acf_has_block_type( $block['name'] ) ) {
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/* translators: The name of the block type */
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$message = sprintf( __( 'Block type "%s" is already registered.', 'acf' ), $block['name'] );
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_doing_it_wrong( __FUNCTION__, $message, '5.8.0' ); //phpcs:ignore -- escape not required.
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return false;
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}
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// Set ACF required attributes.
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$block['attributes'] = acf_get_block_type_default_attributes( $block );
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if ( ! isset( $block['api_version'] ) ) {
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$block['api_version'] = 2;
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}
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if ( ! isset( $block['acf_block_version'] ) ) {
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$block['acf_block_version'] = 1;
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}
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// Add to storage.
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acf_get_store( 'block-types' )->set( $block['name'], $block );
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// Overwrite callback for WordPress registration.
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$block['render_callback'] = 'acf_render_block_callback';
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// Register block type in WP.
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if ( function_exists( 'register_block_type' ) ) {
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register_block_type(
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$block['name'],
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$block
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);
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}
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// Register action.
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add_action( 'enqueue_block_editor_assets', 'acf_enqueue_block_assets' );
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// Return block.
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return $block;
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}
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/**
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* See acf_register_block_type().
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*
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* @date 18/2/19
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* @since 5.7.12
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*
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* @param array $block The block settings.
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* @return (array|false)
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*/
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function acf_register_block( $block ) {
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return acf_register_block_type( $block );
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}
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/**
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* Returns true if a block type exists for the given name.
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*
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* @since 5.7.12
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*
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* @param string $name The block type name.
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* @return bool
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*/
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function acf_has_block_type( $name ) {
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return acf_get_store( 'block-types' )->has( $name );
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}
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/**
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* Returns an array of all registered block types.
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*
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* @since 5.7.12
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*
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* @return array
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*/
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function acf_get_block_types() {
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return acf_get_store( 'block-types' )->get();
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}
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/**
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* Returns a block type for the given name.
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*
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* @since 5.7.12
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*
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* @param string $name The block type name.
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* @return (array|null)
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*/
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function acf_get_block_type( $name ) {
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return acf_get_store( 'block-types' )->get( $name );
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}
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/**
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* Removes a block type for the given name.
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*
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* @since 5.7.12
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*
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* @param string $name The block type name.
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* @return void
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*/
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function acf_remove_block_type( $name ) {
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acf_get_store( 'block-types' )->remove( $name );
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}
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/**
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* Returns an array of default attribute settings for a block type.
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*
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* @date 19/11/18
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* @since 5.8.0
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*
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* @param array $block_type A block configuration array.
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* @return array
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*/
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function acf_get_block_type_default_attributes( $block_type ) {
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$attributes = array(
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'name' => array(
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'type' => 'string',
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'default' => '',
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),
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'data' => array(
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'type' => 'object',
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'default' => array(),
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),
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'align' => array(
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'type' => 'string',
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'default' => '',
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),
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'mode' => array(
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'type' => 'string',
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'default' => '',
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),
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);
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foreach ( acf_get_block_back_compat_attribute_key_array() as $new => $old ) {
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if ( isset( $block_type['supports'][ $old ] ) ) {
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$block_type['supports'][ $new ] = $block_type['supports'][ $old ];
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unset( $block_type['supports'][ $old ] );
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}
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}
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if ( ! empty( $block_type['supports']['alignText'] ) ) {
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$attributes['alignText'] = array(
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'type' => 'string',
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'default' => '',
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);
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}
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if ( ! empty( $block_type['supports']['alignContent'] ) ) {
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$attributes['alignContent'] = array(
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'type' => 'string',
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'default' => '',
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);
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}
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if ( ! empty( $block_type['supports']['fullHeight'] ) ) {
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$attributes['fullHeight'] = array(
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'type' => 'boolean',
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'default' => '',
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);
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}
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// For each of ACF's block attributes, check if the user's block attributes contains a default value we should use.
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if ( isset( $block_type['attributes'] ) && is_array( $block_type['attributes'] ) ) {
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foreach ( array_keys( $attributes ) as $key ) {
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if ( isset( $block_type['attributes'][ $key ] ) && is_array( $block_type['attributes'][ $key ] ) && isset( $block_type['attributes'][ $key ]['default'] ) ) {
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$attributes[ $key ]['default'] = $block_type['attributes'][ $key ]['default'];
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}
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}
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}
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return $attributes;
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}
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/**
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* Validates a block type ensuring all settings exist.
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*
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* @since 5.8.0
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*
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* @param array $block The block settings.
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* @return array
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*/
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function acf_validate_block_type( $block ) {
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// Add default settings.
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$block = wp_parse_args(
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$block,
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array(
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'name' => '',
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'title' => '',
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'description' => '',
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'category' => 'common',
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'icon' => '',
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'mode' => 'preview',
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'keywords' => array(),
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'supports' => array(),
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'post_types' => array(),
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'uses_context' => array(),
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'render_template' => false,
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'render_callback' => false,
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'enqueue_style' => false,
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'enqueue_script' => false,
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'enqueue_assets' => false,
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)
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);
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// Generate name with prefix.
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if ( $block['name'] ) {
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$block['name'] = 'acf/' . acf_slugify( $block['name'] );
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}
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// Add default 'supports' settings.
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$block['supports'] = wp_parse_args(
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$block['supports'],
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array(
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'align' => true,
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'html' => false,
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'mode' => true,
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)
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);
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// Add default 'uses_context' settings.
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$block['uses_context'] = wp_parse_args(
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$block['uses_context'],
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array(
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'postId',
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'postType',
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)
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);
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// Correct "Experimental" flags.
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if ( isset( $block['supports']['__experimental_jsx'] ) ) {
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$block['supports']['jsx'] = $block['supports']['__experimental_jsx'];
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}
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// Return block.
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return $block;
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}
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/**
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* Prepares a block for use in render_callback by merging in all settings and attributes.
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*
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* @since 5.8.0
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*
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* @param array $block The block props.
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* @return array
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*/
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function acf_prepare_block( $block ) {
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// Bail early if no name.
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if ( ! isset( $block['name'] ) ) {
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return false;
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}
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// Get block type and return false if doesn't exist.
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$block_type = acf_get_block_type( $block['name'] );
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if ( ! $block_type ) {
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return false;
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}
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// Generate default attributes.
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$attributes = array();
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foreach ( acf_get_block_type_default_attributes( $block_type ) as $k => $v ) {
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$attributes[ $k ] = $v['default'];
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}
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// Merge together arrays in order of least to most specific.
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$block = array_merge( $block_type, $attributes, $block );
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// Add backward compatibility attributes.
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$block = acf_add_back_compat_attributes( $block );
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// Return block.
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return $block;
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}
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/**
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* Add backwards compatible attribute values.
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*
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* @since 6.0.0
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*
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* @param array $block The original block.
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* @return array Modified block array with backwards compatibility attributes.
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*/
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function acf_add_back_compat_attributes( $block ) {
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foreach ( acf_get_block_back_compat_attribute_key_array() as $new => $old ) {
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if ( ! empty( $block[ $new ] ) || ( isset( $block[ $new ] ) && ! isset( $block[ $old ] ) ) ) {
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$block[ $old ] = $block[ $new ];
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}
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}
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return $block;
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}
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|
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/**
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* Get back compat new values and old values.
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*
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* @since 6.0.0
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*
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* @return array back compat key array.
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*/
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function acf_get_block_back_compat_attribute_key_array() {
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return array(
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'fullHeight' => 'full_height',
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'alignText' => 'align_text',
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'alignContent' => 'align_content',
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);
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}
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|
|
|
|
/**
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* The render callback for all ACF blocks.
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|
*
|
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* @date 28/10/20
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* @since 5.9.2
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*
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* @param array $attributes The block attributes.
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* @param string $content The block content.
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* @param WP_Block $wp_block The block instance (since WP 5.5).
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* @return string The block HTML.
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*/
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function acf_render_block_callback( $attributes, $content = '', $wp_block = null ) {
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$is_preview = false;
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$post_id = get_the_ID();
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// Set preview flag to true when rendering for the block editor.
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if ( is_admin() && acf_is_block_editor() ) {
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$is_preview = true;
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}
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// If ACF's block save method hasn't been called yet, try to initialize a default block.
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if ( empty( $attributes['name'] ) && ! empty( $wp_block->name ) ) {
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$attributes['name'] = $wp_block->name;
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}
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// Return rendered block HTML.
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return acf_rendered_block( $attributes, $content, $is_preview, $post_id, $wp_block );
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}
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|
|
/**
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* Returns the rendered block HTML.
|
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*
|
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* @date 28/2/19
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* @since 5.7.13
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*
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* @param array $attributes The block attributes.
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* @param string $content The block content.
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* @param bool $is_preview Whether or not the block is being rendered for editing preview.
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* @param int $post_id The current post being edited or viewed.
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* @param WP_Block $wp_block The block instance (since WP 5.5).
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* @param array $context The block context array.
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* @return string The block HTML.
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*/
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function acf_rendered_block( $attributes, $content = '', $is_preview = false, $post_id = 0, $wp_block = null, $context = false ) {
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$mode = isset( $attributes['mode'] ) ? $attributes['mode'] : 'auto';
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$form = ( 'edit' === $mode && $is_preview );
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// If context is available from the WP_Block class object and we have no context of our own, use that.
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if ( empty( $context ) && ! empty( $wp_block->context ) ) {
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$context = $wp_block->context;
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}
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|
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// Check if we need to generate a block ID.
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$attributes['id'] = acf_get_block_id( $attributes, $context );
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|
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// Check if we've already got a cache of this block ID and return it to save rendering if we're in the backend.
|
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if ( $is_preview ) {
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$cached_block = acf_get_store( 'block-cache' )->get( $attributes['id'] );
|
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if ( $cached_block ) {
|
|
if ( $form ) {
|
|
if ( $cached_block['form'] ) {
|
|
return $cached_block['html'];
|
|
}
|
|
} else {
|
|
if ( ! $cached_block['form'] ) {
|
|
return $cached_block['html'];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
ob_start();
|
|
|
|
if ( $form ) {
|
|
// Load the block form since we're in edit mode.
|
|
|
|
// Set flag for post REST cleanup of media enqueue count during preloads.
|
|
acf_set_data( 'acf_did_render_block_form', true );
|
|
|
|
$block = acf_prepare_block( $attributes );
|
|
acf_setup_meta( $block['data'], $block['id'], true );
|
|
$fields = acf_get_block_fields( $block );
|
|
if ( $fields ) {
|
|
acf_prefix_fields( $fields, "acf-{$block['id']}" );
|
|
|
|
echo '<div class="acf-block-fields acf-fields">';
|
|
acf_render_fields( $fields, $block['id'], 'div', 'field' );
|
|
echo '</div>';
|
|
} else {
|
|
echo acf_get_empty_block_form_html( $attributes['name'] ); //phpcs:ignore -- escaped in function.
|
|
}
|
|
} else {
|
|
// Capture block render output.
|
|
acf_render_block( $attributes, $content, $is_preview, $post_id, $wp_block, $context );
|
|
}
|
|
|
|
$html = ob_get_clean();
|
|
$html = is_string( $html ) ? $html : '';
|
|
|
|
// Replace <InnerBlocks /> placeholder on front-end, or if we're rendering an ACF block inside another ACF block template.
|
|
if ( ! $is_preview || doing_action( 'acf_block_render_template' ) ) {
|
|
// Escape "$" character to avoid "capture group" interpretation.
|
|
$content = str_replace( '$', '\$', $content );
|
|
|
|
// Wrap content in our acf-inner-container wrapper if necessary.
|
|
if ( $wp_block && $wp_block->block_type->acf_block_version > 1 && apply_filters( 'acf/blocks/wrap_frontend_innerblocks', true, $attributes['name'] ) ) {
|
|
// Check for a class (or className) provided in the template to become the InnerBlocks wrapper class.
|
|
$matches = array();
|
|
if ( preg_match( '/<InnerBlocks(?:[^<]+?)(?:class|className)=(?:["\']\W+\s*(?:\w+)\()?["\']([^\'"]+)[\'"]/', $html, $matches ) ) {
|
|
$class = isset( $matches[1] ) ? $matches[1] : 'acf-innerblocks-container';
|
|
} else {
|
|
$class = 'acf-innerblocks-container';
|
|
}
|
|
$content = '<div class="' . $class . '">' . $content . '</div>';
|
|
}
|
|
$html = preg_replace( '/<InnerBlocks([\S\s]*?)\/>/', $content, $html );
|
|
}
|
|
|
|
// Store in cache for preloading if we're in the backend.
|
|
acf_get_store( 'block-cache' )->set(
|
|
$attributes['id'],
|
|
array(
|
|
'form' => $form,
|
|
'html' => $html,
|
|
)
|
|
);
|
|
|
|
// Prevent edit forms being output to rest endpoints.
|
|
if ( $form && acf_get_data( 'acf_inside_rest_call' ) && apply_filters( 'acf/blocks/prevent_edit_forms_on_rest_endpoints', true ) ) {
|
|
return '';
|
|
}
|
|
|
|
return $html;
|
|
}
|
|
|
|
/**
|
|
* Renders the block HTML.
|
|
*
|
|
* @since 5.7.12
|
|
*
|
|
* @param array $attributes The block attributes.
|
|
* @param string $content The block content.
|
|
* @param bool $is_preview Whether or not the block is being rendered for editing preview.
|
|
* @param int $post_id The current post being edited or viewed.
|
|
* @param WP_Block $wp_block The block instance (since WP 5.5).
|
|
* @param array $context The block context array.
|
|
* @return void|string
|
|
*/
|
|
function acf_render_block( $attributes, $content = '', $is_preview = false, $post_id = 0, $wp_block = null, $context = false ) {
|
|
|
|
// Prepare block ensuring all settings and attributes exist.
|
|
$block = acf_prepare_block( $attributes );
|
|
if ( ! $block ) {
|
|
return '';
|
|
}
|
|
|
|
// Find post_id if not defined.
|
|
if ( ! $post_id ) {
|
|
$post_id = get_the_ID();
|
|
}
|
|
|
|
// Enqueue block type assets.
|
|
acf_enqueue_block_type_assets( $block );
|
|
|
|
// Ensure block ID is prefixed for render.
|
|
$block['id'] = acf_ensure_block_id_prefix( $block['id'] );
|
|
|
|
// Setup postdata allowing get_field() to work.
|
|
acf_setup_meta( $block['data'], $block['id'], true );
|
|
|
|
// Call render_callback.
|
|
if ( is_callable( $block['render_callback'] ) ) {
|
|
call_user_func( $block['render_callback'], $block, $content, $is_preview, $post_id, $wp_block, $context );
|
|
|
|
// Or include template.
|
|
} elseif ( $block['render_template'] ) {
|
|
do_action( 'acf_block_render_template', $block, $content, $is_preview, $post_id, $wp_block, $context );
|
|
}
|
|
|
|
// Reset postdata.
|
|
acf_reset_meta( $block['id'] );
|
|
}
|
|
|
|
/**
|
|
* Locate and include an ACF block's template.
|
|
*
|
|
* @since 6.0.4
|
|
*
|
|
* @param array $block The block props.
|
|
*/
|
|
function acf_block_render_template( $block, $content, $is_preview, $post_id, $wp_block, $context ) {
|
|
// Locate template.
|
|
if ( isset( $block['path'] ) && file_exists( $block['path'] . '/' . $block['render_template'] ) ) {
|
|
$path = $block['path'] . '/' . $block['render_template'];
|
|
} elseif ( file_exists( $block['render_template'] ) ) {
|
|
$path = $block['render_template'];
|
|
} else {
|
|
$path = locate_template( $block['render_template'] );
|
|
}
|
|
|
|
// Include template.
|
|
if ( file_exists( $path ) ) {
|
|
include $path;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns an array of all fields for the given block.
|
|
*
|
|
* @date 24/10/18
|
|
* @since 5.8.0
|
|
*
|
|
* @param array $block The block props.
|
|
* @return array
|
|
*/
|
|
function acf_get_block_fields( $block ) {
|
|
|
|
// Vars.
|
|
$fields = array();
|
|
|
|
// Get field groups for this block.
|
|
$field_groups = acf_get_field_groups(
|
|
array(
|
|
'block' => $block['name'],
|
|
)
|
|
);
|
|
|
|
// Loop over results and append fields.
|
|
if ( $field_groups ) {
|
|
foreach ( $field_groups as $field_group ) {
|
|
$fields = array_merge( $fields, acf_get_fields( $field_group ) );
|
|
}
|
|
}
|
|
|
|
// Return fields.
|
|
return $fields;
|
|
}
|
|
|
|
/**
|
|
* Enqueues and localizes block scripts and styles.
|
|
*
|
|
* @since 5.7.13
|
|
*
|
|
* @return void
|
|
*/
|
|
function acf_enqueue_block_assets() {
|
|
|
|
// Localize text.
|
|
acf_localize_text(
|
|
array(
|
|
'Switch to Edit' => __( 'Switch to Edit', 'acf' ),
|
|
'Switch to Preview' => __( 'Switch to Preview', 'acf' ),
|
|
'Change content alignment' => __( 'Change content alignment', 'acf' ),
|
|
|
|
/* translators: %s: Block type title */
|
|
'%s settings' => __( '%s settings', 'acf' ),
|
|
)
|
|
);
|
|
|
|
// Get block types.
|
|
$block_types = array_map(
|
|
function( $block ) {
|
|
// Render Callback may contain a incompatible class for JSON encoding. Turn it into a boolean for the frontend.
|
|
$block['render_callback'] = ! empty( $block['render_callback'] );
|
|
return $block;
|
|
},
|
|
acf_get_block_types()
|
|
);
|
|
|
|
// Localize data.
|
|
acf_localize_data(
|
|
array(
|
|
'blockTypes' => array_values( $block_types ),
|
|
'postType' => get_post_type(),
|
|
)
|
|
);
|
|
|
|
// Enqueue script.
|
|
$min = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
|
|
|
|
$blocks_js_path = acf_get_url( "assets/build/js/pro/acf-pro-blocks{$min}.js" );
|
|
|
|
wp_enqueue_script( 'acf-blocks', $blocks_js_path, array( 'acf-input', 'wp-blocks' ), ACF_VERSION, true );
|
|
|
|
// Enqueue block assets.
|
|
array_map( 'acf_enqueue_block_type_assets', $block_types );
|
|
|
|
// During the edit screen loading, WordPress renders all blocks in its own attempt to preload data.
|
|
// Retrieve any cached block HTML and include this in the localized data.
|
|
if ( acf_get_setting( 'preload_blocks' ) ) {
|
|
$preloaded_blocks = acf_get_store( 'block-cache' )->get_data();
|
|
acf_localize_data(
|
|
array(
|
|
'preloadedBlocks' => $preloaded_blocks,
|
|
)
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Enqueues scripts and styles for a specific block type.
|
|
*
|
|
* @since 5.7.13
|
|
*
|
|
* @param array $block_type The block type settings.
|
|
* @return void
|
|
*/
|
|
function acf_enqueue_block_type_assets( $block_type ) {
|
|
|
|
// Generate handle from name.
|
|
$handle = 'block-' . acf_slugify( $block_type['name'] );
|
|
|
|
// Enqueue style.
|
|
if ( $block_type['enqueue_style'] ) {
|
|
wp_enqueue_style( $handle, $block_type['enqueue_style'], array(), ACF_VERSION, 'all' );
|
|
}
|
|
|
|
// Enqueue script.
|
|
if ( $block_type['enqueue_script'] ) {
|
|
wp_enqueue_script( $handle, $block_type['enqueue_script'], array(), ACF_VERSION, true );
|
|
}
|
|
|
|
// Enqueue assets callback.
|
|
if ( $block_type['enqueue_assets'] && is_callable( $block_type['enqueue_assets'] ) ) {
|
|
call_user_func( $block_type['enqueue_assets'], $block_type );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Handles the ajax request for block data.
|
|
*
|
|
* @since 5.7.13
|
|
*
|
|
* @return void
|
|
*/
|
|
function acf_ajax_fetch_block() {
|
|
// Validate ajax request.
|
|
if ( ! acf_verify_ajax() ) {
|
|
wp_send_json_error();
|
|
}
|
|
|
|
// Get request args.
|
|
$args = acf_request_args(
|
|
array(
|
|
'post_id' => 0,
|
|
'clientId' => null,
|
|
'query' => array(),
|
|
)
|
|
);
|
|
|
|
$args['block'] = isset( $_REQUEST['block'] ) ? $_REQUEST['block'] : false; //phpcs:ignore -- requires auth; designed to contain unescaped html.
|
|
$args['context'] = isset( $_REQUEST['context'] ) ? $_REQUEST['context'] : array(); //phpcs:ignore -- requires auth; designed to contain unescaped html.
|
|
|
|
$block = $args['block'];
|
|
$query = $args['query'];
|
|
$client_id = $args['clientId'];
|
|
$raw_context = $args['context'];
|
|
$post_id = $args['post_id'];
|
|
|
|
// Bail early if no block.
|
|
if ( ! $block ) {
|
|
wp_send_json_error();
|
|
}
|
|
|
|
// Unslash and decode $_POST data for block and context.
|
|
$block = wp_unslash( $block );
|
|
$block = json_decode( $block, true );
|
|
|
|
$context = false;
|
|
if ( ! empty( $raw_context ) ) {
|
|
$raw_context = wp_unslash( $raw_context );
|
|
$raw_context = json_decode( $raw_context, true );
|
|
if ( is_array( $raw_context ) ) {
|
|
$context = $raw_context;
|
|
// Check if a postId is set in the context, otherwise try and use it the default post_id.
|
|
$post_id = isset( $context['postId'] ) ? intval( $context['postId'] ) : intval( $args['post_id'] );
|
|
}
|
|
}
|
|
|
|
// Check if clientId should become $block['id'].
|
|
if ( empty( $block['id'] ) && ! empty( $client_id ) ) {
|
|
$block['id'] = $client_id;
|
|
}
|
|
|
|
// Prepare block ensuring all settings and attributes exist.
|
|
$block = acf_prepare_block( $block );
|
|
if ( ! $block ) {
|
|
wp_send_json_error();
|
|
}
|
|
|
|
// Load field defaults when first previewing a block.
|
|
if ( ! empty( $query['preview'] ) && ! $block['data'] ) {
|
|
$fields = acf_get_block_fields( $block );
|
|
foreach ( $fields as $field ) {
|
|
$block['data'][ "_{$field['name']}" ] = $field['key'];
|
|
}
|
|
}
|
|
|
|
// Setup postdata allowing form to load meta.
|
|
acf_setup_meta( $block['data'], acf_ensure_block_id_prefix( $block['id'] ), true );
|
|
|
|
// Setup main postdata for post_id.
|
|
global $post;
|
|
//phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited -- required for block template rendering.
|
|
$post = get_post( $post_id );
|
|
setup_postdata( $post );
|
|
|
|
// Vars.
|
|
$response = array( 'clientId' => $client_id );
|
|
|
|
// Query form.
|
|
if ( ! empty( $query['form'] ) ) {
|
|
|
|
// Load fields for form.
|
|
$fields = acf_get_block_fields( $block );
|
|
|
|
// Prefix field inputs to avoid multiple blocks using the same name/id attributes.
|
|
acf_prefix_fields( $fields, "acf-{$block['id']}" );
|
|
|
|
if ( $fields ) {
|
|
// Start Capture.
|
|
ob_start();
|
|
|
|
// Render.
|
|
echo '<div class="acf-block-fields acf-fields">';
|
|
acf_render_fields( $fields, acf_ensure_block_id_prefix( $block['id'] ), 'div', 'field' );
|
|
echo '</div>';
|
|
|
|
// Store Capture.
|
|
$response['form'] = ob_get_clean();
|
|
} else {
|
|
// There are no fields on this block.
|
|
$response['form'] = acf_get_empty_block_form_html( $block['name'] ); //phpcs:ignore -- escaped in function.
|
|
}
|
|
}
|
|
|
|
// Query preview.
|
|
if ( ! empty( $query['preview'] ) ) {
|
|
// Render_callback vars.
|
|
$content = '';
|
|
$is_preview = true;
|
|
|
|
// Render and store HTML.
|
|
$response['preview'] = acf_rendered_block( $block, $content, $is_preview, $post_id, null, $context );
|
|
}
|
|
|
|
// Send response.
|
|
wp_send_json_success( $response );
|
|
}
|
|
|
|
// Register ajax action.
|
|
acf_register_ajax( 'fetch-block', 'acf_ajax_fetch_block' );
|
|
|
|
/**
|
|
* Render the empty block form for when a block has no fields assigned.
|
|
*
|
|
* @since 6.0.0
|
|
*
|
|
* @param string $block_name The block name current being rendered.
|
|
* @return string The html that makes up a block form with no fields.
|
|
*/
|
|
function acf_get_empty_block_form_html( $block_name ) {
|
|
|
|
$message = __( 'This block contains no editable fields.', 'acf' );
|
|
|
|
if ( acf_current_user_can_admin() ) {
|
|
$message .= ' ';
|
|
$message .= sprintf(
|
|
/* translators: %s: an admin URL to the field group edit screen */
|
|
__( 'Assign a <a href="%s" target="_blank">field group</a> to add fields to this block.', 'acf' ),
|
|
admin_url( 'edit.php?post_type=acf-field-group' )
|
|
);
|
|
}
|
|
|
|
$message = apply_filters( 'acf/blocks/no_fields_assigned_message', $message, $block_name );
|
|
|
|
return empty( $message ) ? '' : acf_esc_html( '<div class="acf-block-fields acf-fields acf-empty-block-fields">' . $message . '</div>' );
|
|
}
|
|
|
|
/**
|
|
* Parse content that may contain HTML block comments and saves ACF block meta.
|
|
*
|
|
* @since 5.7.13
|
|
*
|
|
* @param string $text Content that may contain HTML block comments.
|
|
* @return string
|
|
*/
|
|
function acf_parse_save_blocks( $text = '' ) {
|
|
|
|
// Search text for dynamic blocks and modify attrs.
|
|
return addslashes(
|
|
preg_replace_callback(
|
|
'/<!--\s+wp:(?P<name>[\S]+)\s+(?P<attrs>{[\S\s]+?})\s+(?P<void>\/)?-->/',
|
|
'acf_parse_save_blocks_callback',
|
|
stripslashes( $text )
|
|
)
|
|
);
|
|
|
|
}
|
|
|
|
// Hook into saving process.
|
|
add_filter( 'content_save_pre', 'acf_parse_save_blocks', 5, 1 );
|
|
|
|
/**
|
|
* Callback used in preg_replace to modify ACF Block comment.
|
|
*
|
|
* @since 5.7.13
|
|
*
|
|
* @param array $matches The preg matches.
|
|
* @return string
|
|
*/
|
|
function acf_parse_save_blocks_callback( $matches ) {
|
|
|
|
// Defaults.
|
|
$name = isset( $matches['name'] ) ? $matches['name'] : '';
|
|
$attrs = isset( $matches['attrs'] ) ? json_decode( $matches['attrs'], true ) : '';
|
|
$void = isset( $matches['void'] ) ? $matches['void'] : '';
|
|
|
|
// Bail early if missing data or not an ACF Block.
|
|
if ( ! $name || ! $attrs || ! acf_has_block_type( $name ) ) {
|
|
return $matches[0];
|
|
}
|
|
|
|
// Check if we need to generate a block ID.
|
|
$block_id = acf_get_block_id( $attrs );
|
|
|
|
// Convert "data" to "meta".
|
|
// No need to check if already in meta format. Local Meta will do this for us.
|
|
if ( isset( $attrs['data'] ) ) {
|
|
$attrs['data'] = acf_setup_meta( $attrs['data'], acf_ensure_block_id_prefix( $block_id ) );
|
|
}
|
|
|
|
/**
|
|
* Filters the block attributes before saving.
|
|
*
|
|
* @date 18/3/19
|
|
* @since 5.7.14
|
|
*
|
|
* @param array $attrs The block attributes.
|
|
*/
|
|
$attrs = apply_filters( 'acf/pre_save_block', $attrs );
|
|
|
|
// Gutenberg expects a specific encoding format.
|
|
$attrs = acf_serialize_block_attributes( $attrs );
|
|
|
|
return '<!-- wp:' . $name . ' ' . $attrs . ' ' . $void . '-->';
|
|
}
|
|
|
|
/**
|
|
* Return or generate a block ID.
|
|
*
|
|
* @since 6.0.0
|
|
*
|
|
* @param array $attributes A block attributes array.
|
|
* @param array $context The block context array, defaults to an empty array.
|
|
* @return string A block ID.
|
|
*/
|
|
function acf_get_block_id( $attributes, $context = array() ) {
|
|
$attributes['_acf_context'] = $context;
|
|
if ( empty( $attributes['id'] ) ) {
|
|
unset( $attributes['id'] );
|
|
|
|
// Remove all empty string values as they're not present in JS hash building.
|
|
foreach ( $attributes as $key => $value ) {
|
|
if ( '' === $value ) {
|
|
unset( $attributes[ $key ] );
|
|
}
|
|
}
|
|
|
|
// Check if data is empty and remove it if so to match JS hash building.
|
|
if ( isset( $attributes['data'] ) && empty( $attributes['data'] ) ) {
|
|
unset( $attributes['data'] );
|
|
}
|
|
|
|
ksort( $attributes );
|
|
return md5( wp_json_encode( $attributes, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE ) );
|
|
}
|
|
return $attributes['id'];
|
|
}
|
|
|
|
/**
|
|
* Ensure a block ID always has a block_ prefix for post meta internals.
|
|
*
|
|
* @since 6.0.0
|
|
*
|
|
* @param string $block_id A possibly non-prefixed block ID.
|
|
* @return string A prefixed block ID.
|
|
*/
|
|
function acf_ensure_block_id_prefix( $block_id ) {
|
|
if ( substr( $block_id, 0, 6 ) === 'block_' ) {
|
|
return $block_id;
|
|
}
|
|
return 'block_' . $block_id;
|
|
}
|
|
|
|
/**
|
|
* This directly copied from the WordPress core `serialize_block_attributes()` function.
|
|
*
|
|
* We need this in order to make sure that block attributes are stored in a way that is
|
|
* consistent with how Gutenberg sends them over from JS, and so that things like wp_kses()
|
|
* work as expected. Copied from core to get around a bug that was fixed in 5.8.1 or on the off chance
|
|
* that folks are still using WP 5.3 or below.
|
|
*
|
|
* TODO: Remove this when we refactor `acf_parse_save_blocks_callback()` to use `serialize_block()`,
|
|
* or when we're confident that folks aren't using WP versions prior to 5.8.
|
|
*
|
|
* @since 5.12
|
|
*
|
|
* @param array $block_attributes Attributes object.
|
|
* @return string Serialized attributes.
|
|
*/
|
|
function acf_serialize_block_attributes( $block_attributes ) {
|
|
$encoded_attributes = wp_json_encode( $block_attributes, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE );
|
|
$encoded_attributes = preg_replace( '/--/', '\\u002d\\u002d', $encoded_attributes );
|
|
$encoded_attributes = preg_replace( '/</', '\\u003c', $encoded_attributes );
|
|
$encoded_attributes = preg_replace( '/>/', '\\u003e', $encoded_attributes );
|
|
$encoded_attributes = preg_replace( '/&/', '\\u0026', $encoded_attributes );
|
|
// Regex: /\\"/.
|
|
$encoded_attributes = preg_replace( '/\\\\"/', '\\u0022', $encoded_attributes );
|
|
|
|
return $encoded_attributes;
|
|
}
|
|
|
|
/**
|
|
* Set ACF data before a rest call if media scripts have not been enqueued yet for after REST reset.
|
|
*
|
|
* @date 07/06/22
|
|
* @since 6.0
|
|
*
|
|
* @param WP_REST_Response|WP_HTTP_Response|WP_Error|mixed $response The WordPress response object.
|
|
* @return mixed
|
|
*/
|
|
function acf_set_after_rest_media_enqueue_reset_flag( $response ) {
|
|
global $wp_actions;
|
|
|
|
acf_set_data( 'acf_inside_rest_call', true );
|
|
acf_set_data( 'acf_should_reset_media_enqueue', empty( $wp_actions['wp_enqueue_media'] ) );
|
|
acf_set_data( 'acf_did_render_block_form', false );
|
|
|
|
return $response;
|
|
}
|
|
add_filter( 'rest_request_before_callbacks', 'acf_set_after_rest_media_enqueue_reset_flag' );
|
|
|
|
/**
|
|
* Reset wp_enqueue_media action count after REST call so it can happen inside the main execution if required.
|
|
*
|
|
* @date 07/06/22
|
|
* @since 6.0
|
|
*
|
|
* @param WP_REST_Response|WP_HTTP_Response|WP_Error|mixed $response The WordPress response object.
|
|
* @return mixed
|
|
*/
|
|
function acf_reset_media_enqueue_after_rest( $response ) {
|
|
acf_set_data( 'acf_inside_rest_call', false );
|
|
if ( acf_get_data( 'acf_should_reset_media_enqueue' ) && acf_get_data( 'acf_did_render_block_form' ) ) {
|
|
global $wp_actions;
|
|
//phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited -- no other option here as this works around a breaking WordPress change with REST preload scopes.
|
|
$wp_actions['wp_enqueue_media'] = 0;
|
|
}
|
|
|
|
return $response;
|
|
}
|
|
add_filter( 'rest_request_after_callbacks', 'acf_reset_media_enqueue_after_rest' );
|