<?php
/**
* @package ACF
* @author WP Engine
*
* © 2025 Advanced Custom Fields (ACF®). All rights reserved.
* "ACF" is a trademark of WP Engine.
* Licensed under the GNU General Public License v2 or later.
* https://www.gnu.org/licenses/gpl-2.0.html
*/
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly
}
if ( ! class_exists( 'ACF_Assets' ) ) :
class ACF_Assets {
/**
* Storage for i18n data.
*
* @since 5.6.9
* @var array
*/
public $text = array();
/**
* Storage for l10n data.
*
* @since 5.6.9
* @var array
*/
public $data = array();
/**
* List of enqueue flags.
*
* @since 5.9.0
* @var boolean
*/
private $enqueue = array();
/**
* Constructor.
*
* @date 10/4/18
* @since 5.6.9
*
* @param void
* @return void
*/
public function __construct() {
add_action( 'init', array( $this, 'register_scripts' ) );
}
/**
* Magic __call method for backwards compatibility.
*
* @date 10/4/20
* @since 5.9.0
*
* @param string $name The method name.
* @param array $arguments The array of arguments.
* @return mixed
*/
public function __call( $name, $arguments ) {
switch ( $name ) {
case 'admin_enqueue_scripts':
case 'admin_print_scripts':
case 'admin_head':
case 'admin_footer':
case 'admin_print_footer_scripts':
_doing_it_wrong( __FUNCTION__, 'The ACF_Assets class should not be accessed directly.', '5.9.0' );
}
}
/**
* Appends an array of i18n data.
*
* @date 13/4/18
* @since 5.6.9
*
* @param array $text An array of text for i18n.
* @return void
*/
public function add_text( $text ) {
foreach ( (array) $text as $k => $v ) {
$this->text[ $k ] = $v;
}
}
/**
* Appends an array of l10n data.
*
* @date 13/4/18
* @since 5.6.9
*
* @param array $data An array of data for l10n.
* @return void
*/
public function add_data( $data ) {
foreach ( (array) $data as $k => $v ) {
$this->data[ $k ] = $v;
}
}
/**
* Registers the ACF scripts and styles.
*
* @date 10/4/18
* @since 5.6.9
*
* @param void
* @return void
*/
public function register_scripts() {
// Extract vars.
$suffix = defined( 'ACF_DEVELOPMENT_MODE' ) && ACF_DEVELOPMENT_MODE ? '' : '.min';
$version = acf_get_setting( 'version' );
// Register scripts.
wp_register_script( 'acf', acf_get_url( 'assets/build/js/acf' . $suffix . '.js' ), array( 'jquery' ), $version );
wp_register_script( 'acf-input', acf_get_url( 'assets/build/js/acf-input' . $suffix . '.js' ), array( 'jquery', 'jquery-ui-sortable', 'jquery-ui-resizable', 'acf', 'wp-a11y' ), $version );
wp_register_script( 'acf-field-group', acf_get_url( 'assets/build/js/acf-field-group' . $suffix . '.js' ), array( 'acf-input' ), $version );
wp_register_script( 'acf-internal-post-type', acf_get_url( 'assets/build/js/acf-internal-post-type' . $suffix . '.js' ), array( 'acf-input' ), $version );
wp_register_script( 'acf-escaped-html-notice', acf_get_url( 'assets/build/js/acf-escaped-html-notice' . $suffix . '.js' ), array( 'jquery' ), $version, true );
// Register styles.
wp_register_style( 'acf-global', acf_get_url( 'assets/build/css/acf-global' . $suffix . '.css' ), array( 'dashicons' ), $version );
wp_register_style( 'acf-input', acf_get_url( 'assets/build/css/acf-input' . $suffix . '.css' ), array( 'acf-global' ), $version );
wp_register_style( 'acf-field-group', acf_get_url( 'assets/build/css/acf-field-group' . $suffix . '.css' ), array( 'acf-input' ), $version );
/**
* Fires after core scripts and styles have been registered.
*
* @since 5.6.9
*
* @param string $version The ACF version.
* @param string $suffix The potential ".min" filename suffix.
*/
do_action( 'acf/register_scripts', $version, $suffix );
}
/**
* Enqueues a script and sets up actions for priting supplemental scripts.
*
* @date 27/4/20
* @since 5.9.0
*
* @param string $name The script name.
* @return void
*/
public function enqueue_script( $name ) {
wp_enqueue_script( $name );
$this->add_actions();
}
/**
* Enqueues a style.
*
* @date 27/4/20
* @since 5.9.0
*
* @param string $name The style name.
* @return void
*/
public function enqueue_style( $name ) {
wp_enqueue_style( $name );
}
/**
* Adds the actions needed to print supporting inline scripts.
*
* @date 27/4/20
* @since 5.9.0
*
* @param void
* @return void
*/
private function add_actions() {
// Only run once.
if ( acf_has_done( 'ACF_Assets::add_actions' ) ) {
return;
}
// Add actions.
$this->add_action( 'admin_enqueue_scripts', 'enqueue_scripts', 20 );
$this->add_action( 'admin_print_scripts', 'print_scripts', 20 );
$this->add_action( 'admin_print_footer_scripts', 'print_footer_scripts', 20 );
}
/**
* Extends the add_action() function with two additional features:
* 1. Renames $action depending on the current page (customizer, login, front-end).
* 2. Alters the priotiry or calls the method directly if the action has already passed.
*
* @date 28/4/20
* @since 5.9.0
*
* @param string $action The action name.
* @param string $method The method name.
* @param integer $priority See add_action().
* @param integer $accepted_args See add_action().
* @return void
*/
public function add_action( $action, $method, $priority = 10, $accepted_args = 1 ) {
// Generate an array of action replacements.
$replacements = array(
'customizer' => array(
'admin_enqueue_scripts' => 'admin_enqueue_scripts',
'admin_print_scripts' => 'customize_controls_print_scripts',
'admin_head' => 'customize_controls_print_scripts',
'admin_footer' => 'customize_controls_print_footer_scripts',
'admin_print_footer_scripts' => 'customize_controls_print_footer_scripts',
),
'login' => array(
'admin_enqueue_scripts' => 'login_enqueue_scripts',
'admin_print_scripts' => 'login_head',
'admin_head' => 'login_head',
'admin_footer' => 'login_footer',
'admin_print_footer_scripts' => 'login_footer',
),
'wp' => array(
'admin_enqueue_scripts' => 'wp_enqueue_scripts',
'admin_print_scripts' => 'wp_print_scripts',
'admin_head' => 'wp_head',
'admin_footer' => 'wp_footer',
'admin_print_footer_scripts' => 'wp_print_footer_scripts',
),
);
// Determine the current context.
if ( did_action( 'customize_controls_init' ) ) {
$context = 'customizer';
} elseif ( did_action( 'login_form_register' ) ) {
$context = 'login';
} elseif ( is_admin() ) {
$context = 'admin';
} else {
$context = 'wp';
}
// Replace action if possible.
if ( isset( $replacements[ $context ][ $action ] ) ) {
$action = $replacements[ $context ][ $action ];
}
// Check if action is currently being or has already been run.
if ( did_action( $action ) ) {
$doing = acf_doing_action( $action );
if ( $doing && $doing < $priority ) {
// Allow action to be added as per usual.
} else {
// Call method directly.
return call_user_func( array( $this, $method ) );
}
}
// Add action.
add_action( $action, array( $this, $method ), $priority, $accepted_args );
}
/**
* Generic controller for enqueuing scripts and styles.
*
* @date 28/4/20
* @since 5.9.0
*
* @param array $args {
* @type bool $uploader Whether or not to enqueue uploader scripts.
* }
* @return void
*/
public function enqueue( $args = array() ) {
// Apply defaults.
$args = wp_parse_args(
$args,
array(
'input' => true,
'uploader' => false,
)
);
// Set enqueue flags and add actions.
if ( $args['input'] ) {
$this->enqueue[] = 'input';
}
if ( $args['uploader'] ) {
$this->enqueue[] = 'uploader';
}
$this->add_actions();
}
/**
* Enqueues the scripts and styles needed for the WP media uploader.
*
* @date 27/10/2014
* @since 5.0.9
*
* @param void
* @return void
*/
public function enqueue_uploader() {
// Only run once.
if ( acf_has_done( 'ACF_Assets::enqueue_uploader' ) ) {
return;
}
// Enqueue media assets.
if ( current_user_can( 'upload_files' ) ) {
wp_enqueue_media();
}
// Add actions.
$this->add_action( 'admin_footer', 'print_uploader_scripts', 1 );
/**
* Fires when enqueuing the uploader.
*
* @since 5.6.9
*
* @param void
*/
do_action( 'acf/enqueue_uploader' );
}
/**
* Enqueues and localizes scripts.
*
* @since 5.9.0
*
* @return void
*/
public function enqueue_scripts() {
// Enqueue input scripts.
if ( in_array( 'input', $this->enqueue, true ) ) {
wp_enqueue_script( 'acf-input' );
wp_enqueue_style( 'acf-input' );
}
// Enqueue media scripts.
if ( in_array( 'uploader', $this->enqueue, true ) ) {
$this->enqueue_uploader();
}
// Localize text.
acf_localize_text(
array(
// Tooltip
'Are you sure?' => esc_html__( 'Are you sure?', 'acf' ),
'Yes' => esc_html__( 'Yes', 'acf' ),
'No' => esc_html__( 'No', 'acf' ),
'Remove' => esc_html__( 'Remove', 'acf' ),
'Cancel' => esc_html__( 'Cancel', 'acf' ),
'Close modal' => esc_html__( 'Close modal', 'acf' ),
)
);
// Localize "input" text.
if ( wp_script_is( 'acf-input' ) ) {
acf_localize_text(
array(
// Unload
'The changes you made will be lost if you navigate away from this page' => esc_html__( 'The changes you made will be lost if you navigate away from this page', 'acf' ),
// Metaboxes
'Toggle panel' => __( 'Toggle panel', 'acf' ),
// Validation
'Validation successful' => esc_html__( 'Validation successful', 'acf' ),
'Validation failed' => esc_html__( 'Validation failed', 'acf' ),
'1 field requires attention' => esc_html__( '1 field requires attention', 'acf' ),
/* translators: %d is the number of fields that require attention */
'%d fields require attention' => esc_html__( '%d fields require attention', 'acf' ),
// Block Validation
'An ACF Block on this page requires attention before you can save.' => esc_html__( 'An ACF Block on this page requires attention before you can save.', 'acf' ),
// Other
'Edit field group' => esc_html__( 'Edit field group', 'acf' ),
)
);
/**
* Fires during "admin_enqueue_scripts" when ACF scripts are enqueued.
*
* @since 5.6.9
*/
do_action( 'acf/input/admin_enqueue_scripts' );
}
/**
* Fires during "admin_enqueue_scripts" when ACF scripts are enqueued.
*
* @since 5.6.9
*/
do_action( 'acf/admin_enqueue_scripts' );
do_action( 'acf/enqueue_scripts' );
// Filter i18n translations that differ from English and localize script.
$text = array();
foreach ( $this->text as $k => $v ) {
if ( str_replace( '.verb', '', $k ) !== $v ) {
$text[ $k ] = $v;
}
}
if ( $text ) {
wp_localize_script( 'acf', 'acfL10n', $text );
}
}
/**
* Prints scripts in head.
*
* @date 27/4/20
* @since 5.9.0
*
* @param void
* @return void
*/
public function print_scripts() {
if ( wp_script_is( 'acf-input' ) ) {
/**
* Fires during "admin_head" when ACF scripts are enqueued.
*
* @since 5.6.9
*
* @param void
*/
do_action( 'acf/input/admin_head' );
do_action( 'acf/input/admin_print_scripts' );
}
/**
* Fires during "admin_head" when ACF scripts are enqueued.
*
* @since 5.6.9
*
* @param void
*/
do_action( 'acf/admin_head' );
do_action( 'acf/admin_print_scripts' );
}
/**
* Prints scripts in footer.
*
* @date 27/4/20
* @since 5.9.0
*
* @param void
* @return void
*/
public function print_footer_scripts() {
global $wp_version;
// Bail early if 'acf' script was never enqueued (fixes Elementor enqueue reset conflict).
if ( ! wp_script_is( 'acf' ) ) {
return;
}
// Localize data.
$data_to_localize = array(
'admin_url' => admin_url(),
'ajaxurl' => admin_url( 'admin-ajax.php' ),
'nonce' => wp_create_nonce( 'acf_nonce' ),
'acf_version' => acf_get_setting( 'version' ),
'wp_version' => $wp_version,
'browser' => acf_get_browser(),
'locale' => acf_get_locale(),
'rtl' => is_rtl(),
'screen' => acf_get_form_data( 'screen' ),
'post_id' => acf_get_form_data( 'post_id' ),
'validation' => acf_get_form_data( 'validation' ),
'editor' => acf_is_block_editor() ? 'block' : 'classic',
'is_pro' => acf_is_pro(),
'debug' => acf_is_beta() || ( defined( 'ACF_DEVELOPMENT_MODE' ) && ACF_DEVELOPMENT_MODE ),
'StrictMode' => defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG && version_compare( $wp_version, '6.6', '>=' ),
);
acf_localize_data( $data_to_localize );
// Print inline script.
printf( "<script>\n%s\n</script>\n", 'acf.data = ' . wp_json_encode( $this->data ) . ';' );
if ( wp_script_is( 'acf-input' ) ) {
/**
* Filters an empty array for compat l10n data.
*
* @since 5.0.0
*
* @param array $data An array of data to append to.
*/
$compat_l10n = apply_filters( 'acf/input/admin_l10n', array() );
if ( $compat_l10n ) {
printf( "<script>\n%s\n</script>\n", 'acf.l10n = ' . wp_json_encode( $compat_l10n ) . ';' );
}
/**
* Fires during "admin_footer" when ACF scripts are enqueued.
*
* @since 5.6.9
*/
do_action( 'acf/input/admin_footer' );
do_action( 'acf/input/admin_print_footer_scripts' );
}
/**
* Fires during "admin_footer" when ACF scripts are enqueued.
*
* @since 5.6.9
*
* @param void
*/
do_action( 'acf/admin_footer' );
do_action( 'acf/admin_print_footer_scripts' );
// Once all data is localized, trigger acf.prepare() to execute functionality before DOM ready.
printf( "<script>\n%s\n</script>\n", "acf.doAction( 'prepare' );" );
}
/**
* Prints uploader scripts in footer.
*
* @date 11/06/2020
* @since 5.9.0
*
* @param void
* @return void
*/
public function print_uploader_scripts() {
// Todo: investigate output-buffer to hide HTML.
?>
<div id="acf-hidden-wp-editor" style="display: none;">
<?php wp_editor( '', 'acf_content' ); ?>
</div>
<?php
/**
* Fires when printing uploader scripts.
*
* @since 5.6.9
*
* @param void
*/
do_action( 'acf/admin_print_uploader_scripts' );
}
}
// instantiate
acf_new_instance( 'ACF_Assets' );
endif; // class_exists check
/**
* Appends an array of i18n data for localization.
*
* @date 13/4/18
* @since 5.6.9
*
* @param array $text An array of text for i18n.
* @return void
*/
function acf_localize_text( $text ) {
return acf_get_instance( 'ACF_Assets' )->add_text( $text );
}
/**
* Appends an array of l10n data for localization.
*
* @date 13/4/18
* @since 5.6.9
*
* @param array $data An array of data for l10n.
* @return void
*/
function acf_localize_data( $data ) {
return acf_get_instance( 'ACF_Assets' )->add_data( $data );
}
/**
* Enqueues a script with support for supplemental inline scripts.
*
* @date 27/4/20
* @since 5.9.0
*
* @param string $name The script name.
* @return void
*/
function acf_enqueue_script( $name ) {
return acf_get_instance( 'ACF_Assets' )->enqueue_script( $name );
}
/**
* Enqueues the input scripts required for fields.
*
* @date 13/4/18
* @since 5.6.9
*
* @param array $args See ACF_Assets::enqueue_scripts() for a list of args.
* @return void
*/
function acf_enqueue_scripts( $args = array() ) {
return acf_get_instance( 'ACF_Assets' )->enqueue( $args );
}
/**
* Enqueues the WP media uploader scripts and styles.
*
* @date 27/10/2014
* @since 5.0.9
*
* @param void
* @return void
*/
function acf_enqueue_uploader() {
return acf_get_instance( 'ACF_Assets' )->enqueue_uploader();
}
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