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<?php |
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/** |
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* Adds a custom loading icon when the previewer refreshes. |
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* |
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* @package Kirki |
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* @subpackage Modules |
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* @copyright Copyright (c) 2017, Aristeides Stathopoulos |
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* @license http://opensource.org/licenses/https://opensource.org/licenses/MIT |
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* @since 3.0.0 |
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*/ |
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/** |
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* Modifies the loading overlay. |
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*/ |
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class Kirki_Modules_Loading { |
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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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*/ |
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protected function __construct() { |
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add_action( 'init', array( $this, 'init' ) ); |
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} |
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/** |
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* Gets an instance of this object. |
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* Prevents duplicate instances which avoid artefacts and improves performance. |
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* |
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* @static |
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* @access public |
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* @since 3.0.0 |
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* @return object |
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*/ |
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public static function get_instance() { |
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if ( ! self::$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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* Runs on init. |
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* |
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* @access public |
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* @since 3.0.0 |
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*/ |
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public function init() { |
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global $wp_customize; |
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if ( ! $wp_customize ) { |
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return; |
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} |
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// Allow disabling the custom loader using the kirki/config filter. |
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$config = apply_filters( 'kirki/config', array() ); |
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if ( isset( $config['disable_loader'] ) && true === $config['disable_loader'] ) { |
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return; |
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} |
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// Add the "loading" icon. |
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add_action( 'wp_footer', array( $this, 'add_loader_to_footer' ) ); |
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add_action( 'wp_head', array( $this, 'add_loader_styles_to_header' ), 99 ); |
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$this->remove_default_loading_styles(); |
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} |
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/** |
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* Adds a custom "loading" div $ its styles when changes are made to the customizer. |
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* |
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* @access public |
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*/ |
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public function add_loader_to_footer() { |
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?> |
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<div class="kirki-customizer-loading-wrapper"> |
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<span class="kirki-customizer-loading"></span> |
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</div> |
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<?php |
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} |
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/** |
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* Adds the loader CSS to our `<head>`. |
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* |
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* @access public |
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*/ |
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public function add_loader_styles_to_header() { |
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?> |
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<style> |
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body.wp-customizer-unloading { |
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opacity: 1; |
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cursor: progress !important; |
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-webkit-transition: none; |
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transition: none; |
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} |
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body.wp-customizer-unloading * { |
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pointer-events: none !important; |
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} |
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.kirki-customizer-loading-wrapper { |
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width: 100%; |
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height: 100%; |
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position: fixed; |
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top: 0; |
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left: 0; |
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background: rgba(255,255,255,0.83); |
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z-index: 999999; |
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display: none; |
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opacity: 0; |
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-webkit-transition: opacity 0.5s; |
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transition: opacity 0.5s; |
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background-image: url("<?php echo esc_url_raw( Kirki::$url ); ?>/assets/images/kirki-logo.svg"); |
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background-repeat: no-repeat; |
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background-position: center center; |
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} |
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body.wp-customizer-unloading .kirki-customizer-loading-wrapper { |
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display: block; |
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opacity: 1; |
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} |
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.kirki-customizer-loading-wrapper .kirki-customizer-loading { |
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position: absolute; |
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width: 60px; |
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height: 60px; |
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top: 50%; |
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left: 50%; |
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margin: -30px; |
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background-color: rgba(0,0,0,.83); |
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border-radius: 100%; |
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-webkit-animation: sk-scaleout 1.0s infinite ease-in-out; |
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animation: sk-scaleout 1.0s infinite ease-in-out; |
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} |
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@-webkit-keyframes sk-scaleout { |
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0% { -webkit-transform: scale(0) } |
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100% { |
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-webkit-transform: scale(1.0); |
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opacity: 0; |
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} |
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} |
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@keyframes sk-scaleout { |
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0% { |
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-webkit-transform: scale(0); |
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transform: scale(0); |
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} |
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100% { |
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-webkit-transform: scale(1.0); |
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transform: scale(1.0); |
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opacity: 0; |
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} |
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} |
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</style> |
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<?php |
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} |
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/** |
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161
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* Removes the default loader styles from WP Core. |
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* |
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* @access public |
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*/ |
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public function remove_default_loading_styles() { |
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global $wp_customize; |
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remove_action( 'wp_head', array( $wp_customize, 'customize_preview_loading_style' ) ); |
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} |
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} |
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aristath /
kirki
