auto-alt-text / src / App / Admin / MediaLibrary.php

MediaLibrary.php in Auto Alt Text 2.3.3, at src/App/Admin/MediaLibrary.php

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1	<?php
2
3	namespace AATXT\App\Admin;
4
5	use AATXT\App\Setup;
6	use AATXT\App\Utilities\AssetsManager;
7	use AATXT\Config\Constants;
8
9	class MediaLibrary
10	{
11	private static ?self $instance = null;
12	private static AssetsManager $assetsManager;
13
14	private function __construct()
15	{
16	//
17	}
18
19	public static function register(): void
20	{
21	if (is_null(self::$instance)) {
22	self::$instance = new self();
23	}
24	self::$assetsManager = AssetsManager::make();
25
26	add_action('admin_enqueue_scripts', [self::$instance, 'enqueue'], 1);
27
28	// Add button to generate alt text in media library
29	add_filter('attachment_fields_to_edit', [self::$instance, 'addGenerateAltTextButton'], 10, 2);
30
31	// Handle AJAX request to generate alt text
32	add_action('wp_ajax_generate_alt_text', [self::$instance, 'generateAltText']);
33	}
34
35	public function generateAltText(): void
36	{
37	check_ajax_referer(Constants::AATXT_AJAX_GENERATE_ALT_TEXT_NONCE, 'nonce');
38
39	// Recupera l'ID del media dalla richiesta AJAX
40	$postId = isset($_POST['post_id']) ? intval($_POST['post_id']) : 0;
41
42	if (!$postId) {
43	wp_send_json_error('Invalid Post ID');
44	return;
45	}
46
47	// Recupera l'URL del media
48	$mediaUrl = wp_get_attachment_url($postId);
49
50	if (!$mediaUrl) {
51	wp_send_json_error('Media not found');
52	return;
53	}
54
55	$generatedAltText = Setup::altText($postId);
56
57	wp_send_json_success(['alt_text' => $generatedAltText]);
58	}
59
60	public static function enqueue(): void
61	{
62	$screen = get_current_screen();
63	if ($screen && ( ($screen->id === 'upload' && $screen->base === 'upload') \|\| ($screen->id === 'attachment')) ) {
64	$mediaLibraryJs = self::$assetsManager->getAssetUrl('resources/js/media-library.js', false);
65	wp_enqueue_script(Constants::AATXT_PLUGIN_MEDIA_LIBRARY_HANDLE, $mediaLibraryJs, [], false);
66
67	wp_localize_script(Constants::AATXT_PLUGIN_MEDIA_LIBRARY_HANDLE, 'AATXT', [
68	'altTextNonce' => wp_create_nonce(Constants::AATXT_AJAX_GENERATE_ALT_TEXT_NONCE),
69	]);
70	}
71	}
72
73	public static function addGenerateAltTextButton(array $form_fields, \WP_Post $post): array
74	{
75	if (!wp_attachment_is_image($post->ID)) {
76	return $form_fields;
77	}
78
79	$mimeType = get_post_mime_type($post->ID);
80	$altTextGenerationTypology = PluginOptions::typology();
81
82	if($altTextGenerationTypology === Constants::AATXT_OPTION_TYPOLOGY_CHOICE_OPENAI && !in_array($mimeType, Constants::AATXT_OPENAI_ALLOWED_MIME_TYPES, true)) {
83	return $form_fields;
84	}
85
86	if($altTextGenerationTypology === Constants::AATXT_OPTION_TYPOLOGY_CHOICE_AZURE && !in_array($mimeType, Constants::AATXT_AZURE_ALLOWED_MIME_TYPES, true)) {
87	return $form_fields;
88	}
89
90	$form_fields['generate_alt_text'] = array(
91	'label' => get_post_mime_type($post->ID),
92	'input' => 'html',
93	'html' => '<button type="button" class="button" id="generate-alt-text-button" data-post-id="' . $post->ID . '">'
94	. esc_html__('Generate Alt Text', 'auto-alt-text') .
95	'</button><span id="loading-spinner" class="spinner" style="float:none; margin-left: 5px; display: none;"></span>',
96
97	'helps' => '',
98	);
99
100	return $form_fields;
101	}
102	}