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<?php namespace Elementor\Modules\LazyLoad; use Elementor\Core\Base\Module as BaseModule; use Elementor\Plugin; if ( ! defined( 'ABSPATH' ) ) { exit; // Exit if accessed directly } class Module extends BaseModule { public function get_name() { return 'lazyload'; } public function __construct() { parent::__construct(); add_action( 'init', [ $this, 'init' ] ); } public function init() { if ( ! $this->is_lazy_load_background_images_enabled() ) { return; } add_action( 'wp_head', function() { if ( ! $this->should_lazyload() ) { return; } ?> <style> .e-con.e-parent:nth-of-type(n+4):not(.e-lazyloaded):not(.e-no-lazyload), .e-con.e-parent:nth-of-type(n+4):not(.e-lazyloaded):not(.e-no-lazyload) * { background-image: none !important; } @media screen and (max-height: 1024px) { .e-con.e-parent:nth-of-type(n+3):not(.e-lazyloaded):not(.e-no-lazyload), .e-con.e-parent:nth-of-type(n+3):not(.e-lazyloaded):not(.e-no-lazyload) * { background-image: none !important; } } @media screen and (max-height: 640px) { .e-con.e-parent:nth-of-type(n+2):not(.e-lazyloaded):not(.e-no-lazyload), .e-con.e-parent:nth-of-type(n+2):not(.e-lazyloaded):not(.e-no-lazyload) * { background-image: none !important; } } </style> <?php } ); add_action( 'wp_footer', function() { if ( ! $this->should_lazyload() ) { return; } ?> <script type='text/javascript'> const lazyloadRunObserver = () => { const lazyloadBackgrounds = document.querySelectorAll( `.e-con.e-parent:not(.e-lazyloaded)` ); const lazyloadBackgroundObserver = new IntersectionObserver( ( entries ) => { entries.forEach( ( entry ) => { if ( entry.isIntersecting ) { let lazyloadBackground = entry.target; if( lazyloadBackground ) { lazyloadBackground.classList.add( 'e-lazyloaded' ); } lazyloadBackgroundObserver.unobserve( entry.target ); } }); }, { rootMargin: '200px 0px 200px 0px' } ); lazyloadBackgrounds.forEach( ( lazyloadBackground ) => { lazyloadBackgroundObserver.observe( lazyloadBackground ); } ); }; const events = [ 'DOMContentLoaded', 'elementor/lazyload/observe', ]; events.forEach( ( event ) => { document.addEventListener( event, lazyloadRunObserver ); } ); </script> <?php } ); } private function should_lazyload() { return ! is_admin() && ! Plugin::$instance->preview->is_preview_mode() && ! Plugin::$instance->editor->is_edit_mode(); } private static function is_lazy_load_background_images_enabled(): bool { return '1' === get_option( 'elementor_lazy_load_background_images', '1' ); } }
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