wp-optimize / webp / class-wpo-webp-convert.php

class-wpo-webp-convert.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 4.5.4, at webp/class-wpo-webp-convert.php

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1	<?php
2
3	if (!defined('ABSPATH')) die('No direct access allowed');
4
5	if (!class_exists('WPO_WebP_Convert')) :
6
7	/**
8	* Handles WebP conversion by iterating through available converters.
9	*/
10	class WPO_WebP_Convert {
11
12	/**
13	* @var array<string>
14	*/
15	private $converters = array();
16
17	private function __construct() {
18	$webp_converters = WP_Optimize()->get_options()->get_option('webp_converters');
19	$this->converters = false === $webp_converters ? array() : $webp_converters;
20	}
21
22	/**
23	* Singleton instance
24	*
25	* @return WPO_WebP_Convert
26	*/
27	public static function get_instance(): self {
28	static $instance = null;
29	if (null === $instance) {
30	$instance = new self();
31	}
32	return $instance;
33	}
34
35	/**
36	* Convert an image file to WebP format using the first available converter that succeeds.
37	*
38	* @param string $source Path of the source file.
39	* @return bool True if conversion succeeded, false otherwise.
40	*/
41	public function convert($source): bool {
42	if (empty($this->converters)) {
43	return false;
44	}
45
46	$destination = WPO_WebP_Utils::get_destination_path($source);
47
48	return $this->attempt_conversion($source, $destination);
49	}
50
51	/**
52	* Try each configured converter in order until one produces a WebP file.
53	*
54	* @param string $source Path of the source file.
55	* @param string $destination Path of the destination file.
56	* @return bool True if a converter produced the destination file.
57	*/
58	private function attempt_conversion($source, $destination): bool {
59	foreach ($this->converters as $converter) {
60	WPO_WebP_Utils::perform_webp_conversion($converter, $source, $destination);
61	if (is_file($destination)) {
62	return true;
63	}
64	}
65
66	return false;
67	}
68	}
69	endif;
70