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<?php

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 bool
		 */
		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( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.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' ), $version );
			wp_register_script( 'acf-field-group', acf_get_url( 'assets/build/js/acf-field-group' . $suffix . '.js' ), array( 'acf-input' ), $version );

			// Register styles.
			wp_register_style( 'acf-global', acf_get_url( 'assets/build/css/acf-global.css' ), array( 'dashicons' ), $version );
			wp_register_style( 'acf-input', acf_get_url( 'assets/build/css/acf-input.css' ), array( 'acf-global' ), $version );
			wp_register_style( 'acf-field-group', acf_get_url( 'assets/build/css/acf-field-group.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   int    $priority See add_action().
		 * @param   int    $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.
		 *
		 * @date    27/4/20
		 * @since   5.9.0
		 *
		 * @param   void
		 * @return  void
		 */
		public function enqueue_scripts() {

			// Enqueue input scripts.
			if ( in_array( 'input', $this->enqueue ) ) {
				wp_enqueue_script( 'acf-input' );
				wp_enqueue_style( 'acf-input' );
			}

			// Enqueue media scripts.
			if ( in_array( 'uploader', $this->enqueue ) ) {
				$this->enqueue_uploader();
			}

			// Localize text.
			acf_localize_text(
				array(

					// Tooltip
					'Are you sure?' => __( 'Are you sure?', 'acf' ),
					'Yes'           => __( 'Yes', 'acf' ),
					'No'            => __( 'No', 'acf' ),
					'Remove'        => __( 'Remove', 'acf' ),
					'Cancel'        => __( 'Cancel', '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' => __( 'The changes you made will be lost if you navigate away from this page', 'acf' ),

						// Validation
						'Validation successful'       => __( 'Validation successful', 'acf' ),
						'Validation failed'           => __( 'Validation failed', 'acf' ),
						'1 field requires attention'  => __( '1 field requires attention', 'acf' ),
						'%d fields require attention' => __( '%d fields require attention', 'acf' ),

						// Other
						'Edit field group'            => __( 'Edit field group', 'acf' ),
					)
				);

				/**
				 * Fires during "admin_enqueue_scripts" when ACF scripts are enqueued.
				 *
				 * @since   5.6.9
				 *
				 * @param   void
				 */
				do_action( 'acf/input/admin_enqueue_scripts' );
			}

			/**
			 * Fires during "admin_enqueue_scripts" when ACF scripts are enqueued.
			 *
			 * @since   5.6.9
			 *
			 * @param   void
			 */
			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.
			acf_localize_data(
				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',
				)
			);

			// 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
				 *
				 * @param   void
				 */
				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();
}