92 lines
2.6 KiB
PHP
92 lines
2.6 KiB
PHP
<?php
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/**
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* ACF Block Bindings
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*
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* @since 6.2.8
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* @package ACF
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*/
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namespace ACF\Blocks;
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/**
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* The core ACF Blocks binding class.
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*/
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class Bindings {
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/**
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* Block Bindings constructor.
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*/
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public function __construct() {
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// Final check we're on WP 6.5 or newer.
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if ( ! function_exists( 'register_block_bindings_source' ) ) {
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return;
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}
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add_action( 'acf/init', array( $this, 'register_binding_sources' ) );
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}
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/**
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* Hooked to acf/init, register our binding sources.
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*/
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public function register_binding_sources() {
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if ( acf_get_setting( 'enable_block_bindings' ) ) {
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register_block_bindings_source(
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'acf/field',
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array(
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'label' => _x( 'ACF Fields', 'The core ACF block binding source name for fields on the current page', 'acf' ),
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'get_value_callback' => array( $this, 'get_value' ),
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)
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);
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}
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}
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/**
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* Handle returing the block binding value for an ACF meta value.
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*
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* @since 6.2.8
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*
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* @param array $source_attrs An array of the source attributes requested.
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* @param \WP_Block $block_instance The block instance.
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* @param string $attribute_name The block's bound attribute name.
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* @return string|null The block binding value or an empty string on failure.
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*/
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public function get_value( array $source_attrs, \WP_Block $block_instance, string $attribute_name ) {
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if ( ! isset( $source_attrs['key'] ) || ! is_string( $source_attrs['key'] ) ) {
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$value = '';
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} else {
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$field = get_field_object( $source_attrs['key'], false, true, true, true );
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if ( ! $field ) {
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return '';
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}
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if ( ! acf_field_type_supports( $field['type'], 'bindings', true ) ) {
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if ( is_preview() ) {
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return apply_filters( 'acf/bindings/field_not_supported_message', '[' . esc_html__( 'The requested ACF field type does not support output in Block Bindings or the ACF shortcode.', 'acf' ) . ']' );
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} else {
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return '';
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}
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}
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if ( isset( $field['allow_in_bindings'] ) && ! $field['allow_in_bindings'] ) {
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if ( is_preview() ) {
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return apply_filters( 'acf/bindings/field_not_allowed_message', '[' . esc_html__( 'The requested ACF field is not allowed to be output in bindings or the ACF Shortcode.', 'acf' ) . ']' );
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} else {
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return '';
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}
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}
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$value = $field['value'];
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if ( is_array( $value ) ) {
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$value = implode( ', ', $value );
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}
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// If we're not a scalar we'd throw an error, so return early for safety.
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if ( ! is_scalar( $value ) ) {
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$value = null;
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}
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}
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return apply_filters( 'acf/blocks/binding_value', $value, $source_attrs, $block_instance, $attribute_name );
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}
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}
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