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<?php |
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/** |
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* Automatic postMessage scripts calculation for Kirki controls. |
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* |
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* @package Kirki |
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* @category Modules |
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* @author Aristeides Stathopoulos |
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* @copyright Copyright (c) 2017, Aristeides Stathopoulos |
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* @license https://opensource.org/licenses/MIT |
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* @since 3.0.0 |
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*/ |
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// Exit if accessed directly. |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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/** |
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* Adds styles to the customizer. |
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*/ |
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class Kirki_Modules_PostMessage { |
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/** |
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* The object instance. |
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* |
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* @static |
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* @access private |
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* @since 3.0.0 |
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* @var object |
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*/ |
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private static $instance; |
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/** |
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* Constructor. |
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* |
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* @access protected |
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* @since 3.0.0 |
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*/ |
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protected function __construct() { |
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add_action( 'customize_preview_init', array( $this, 'postmessage' ) ); |
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} |
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/** |
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* Gets an instance of this object. |
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* Prevents duplicate instances which avoid artefacts and improves performance. |
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* |
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* @static |
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* @access public |
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* @since 3.0.0 |
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* @return object |
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*/ |
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public static function get_instance() { |
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if ( ! self::$instance ) { |
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self::$instance = new self(); |
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} |
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return self::$instance; |
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} |
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/** |
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* Enqueues the postMessage script |
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* and adds variables to it using the wp_localize_script function. |
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* The rest is handled via JS. |
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*/ |
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public function postmessage() { |
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wp_enqueue_script( 'kirki_auto_postmessage', trailingslashit( Kirki::$url ) . 'modules/postmessage/postmessage.js', array( 'jquery', 'customize-preview' ), KIRKI_VERSION, true ); |
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$fields = Kirki::$fields; |
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$data = array(); |
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foreach ( $fields as $field ) { |
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if ( isset( $field['transport'] ) && 'postMessage' === $field['transport'] && isset( $field['js_vars'] ) && ! empty( $field['js_vars'] ) && is_array( $field['js_vars'] ) && isset( $field['settings'] ) ) { |
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$data[] = $field; |
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} |
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} |
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wp_localize_script( 'kirki_auto_postmessage', 'kirkiPostMessageFields', $data ); |
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} |
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} |
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aristath /
kirki
