← All changes | modules/image-loading-optimization/module.php +37 -20 4.2.2 → 3.20.0-dev2 View file →

		@@ -1,15 +1,21 @@
1	1	<?php
2	2	namespace Elementor\Modules\ImageLoadingOptimization;
3	3
4	4	use Elementor\Core\Base\Module as BaseModule;
	5	+use Elementor\Core\Experiments\Manager as Experiments_Manager;
5	6
6	7	if ( ! defined( 'ABSPATH' ) ) {
7		- exit; // Exit if accessed directly.
	8	+ exit; // Exit if accessed directly
8	9	}
9	10
10	11	class Module extends BaseModule {
11	12	/**
	13	+ * @var string The experiment name.
	14	+ */
	15	+ const EXPERIMENT_NAME = 'e_image_loading_optimization';
	16	+
	17	+ /**
12	18	* @var int Minimum square-pixels threshold.
13	19	*/
14	20	private $min_priority_img_pixels = 50000;
15	21
		@@ -30,15 +36,33 @@
30	36	return 'image-loading-optimization';
31	37	}
32	38
33	39	/**
	40	+ * Get experimental data.
	41	+ *
	42	+ * @return array Experimental settings.
	43	+ */
	44	+ public static function get_experimental_data() {
	45	+ return [
	46	+ 'name' => static::EXPERIMENT_NAME,
	47	+ 'title' => esc_html__( 'Optimize Image Loading', 'elementor' ),
	48	+ 'tag' => esc_html__( 'Performance', 'elementor' ),
	49	+ 'description' => sprintf(
	50	+ /* translators: 1: fetchpriority attribute, 2: lazy loading attribute. */
	51	+ esc_html__( 'Applying %1$s on LCP image and %2$s on images below the fold to improve performance scores.', 'elementor' ),
	52	+ '<code>fetchpriority="high"</code>',
	53	+ '<code>loading="lazy"</code>'
	54	+ ),
	55	+ 'generator_tag' => true,
	56	+ 'release_status' => Experiments_Manager::RELEASE_STATUS_STABLE,
	57	+ 'default' => Experiments_Manager::STATE_ACTIVE,
	58	+ ];
	59	+ }
	60	+
	61	+ /**
34	62	* Constructor.
35	63	*/
36	64	public function __construct() {
37		- if ( ! static::is_optimized_image_loading_enabled() ) {
38		- return;
39		- }
40		-
41	65	parent::__construct();
42	66
43	67	// Stop wp core logic.
44	68	add_action( 'init', [ $this, 'stop_core_fetchpriority_high_logic' ] );
		@@ -51,20 +75,11 @@
51	75	add_filter( 'the_content', [ $this, 'flush_header_buffer' ], 0 );
52	76
53	77	// Run optimization logic on content.
54	78	add_filter( 'wp_content_img_tag', [ $this, 'loading_optimization_image' ] );
55		- }
56	79
57		- /**
58		- * Check whether the "Optimized Image Loading" settings is enabled.
59		- *
60		- * The 'optimized_image_loading' option can be enabled/disabled from the Elementor settings.
61		- *
62		- * @since 3.21.0
63		- * @access private
64		- */
65		- private static function is_optimized_image_loading_enabled(): bool {
66		- return '1' === get_option( 'elementor_optimized_image_loading', '1' );
	80	+ // Run optimization logic on footer. Flushing of footer buffer will be handled by PHP script end default logic.
	81	+ add_action( 'get_footer', [ $this, 'set_buffer' ] );
67	82	}
68	83
69	84	/**
70	85	* Stop WordPress core fetchpriority logic by setting the wp_high_priority_element_flag flag to false.
		@@ -69,9 +84,12 @@
69	84	/**
70	85	* Stop WordPress core fetchpriority logic by setting the wp_high_priority_element_flag flag to false.
71	86	*/
72	87	public function stop_core_fetchpriority_high_logic() {
73		- wp_high_priority_element_flag( false );
	88	+ // wp_high_priority_element_flag was only introduced in 6.3.0
	89	+ if ( function_exists( 'wp_high_priority_element_flag' ) ) {
	90	+ wp_high_priority_element_flag( false );
	91	+ }
74	92	}
75	93
76	94	/**
77	95	* Set buffer to handle header and footer content.
		@@ -239,9 +257,8 @@
239	257	__FUNCTION__,
240	258	esc_html__( 'An image should not be lazy-loaded and marked as high priority at the same time.', 'elementor' ),
241	259	''
242	260	);
243		-
244	261	/*
245	262	* Set `fetchpriority` here for backward-compatibility as we should
246	263	* not override what a developer decided, even though it seems
247	264	* incorrect.
		@@ -312,10 +329,10 @@
312	329
313	330	/**
314	331	* Determines whether to add `fetchpriority='high'` to loading attributes.
315	332	*
316		- * @param array $loading_attrs Array of the loading optimization attributes for the element.
317		- * @param array $attr Array of the attributes for the element.
	333	+ * @param array $loading_attrs Array of the loading optimization attributes for the element.
	334	+ * @param array $attr Array of the attributes for the element.
318	335	* @return array Updated loading optimization attributes for the element.
319	336	*/
320	337	private function maybe_add_fetchpriority_high_attr( $loading_attrs, $attr ) {
321	338	if ( isset( $attr['fetchpriority'] ) ) {