73 lines
2.5 KiB
PHP
73 lines
2.5 KiB
PHP
<?php
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namespace Modules\Stylist\Services;
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use Illuminate\Filesystem\Filesystem;
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use Modules\Stylist\Theme\Theme;
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final class ThemeAccessibilityValidator
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{
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public function __construct(private readonly Filesystem $files) {}
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/** @return array<int, array{severity:string,message:string,file:string}> */
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public function validate(Theme $theme): array
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{
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$issues = [];
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foreach ($this->files->allFiles($theme->path().'/views') as $file) {
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$content = $file->getContents();
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$relative = $file->getRelativePathname();
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$missingAlt = 0;
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if (preg_match_all('/<img\\b(?:(?:"[^"]*")|(?:\'[^\']*\')|[^\'">])*>/is', $content, $images)) {
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foreach ($images[0] as $image) {
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if (! preg_match('/\\balt\\s*=\\s*(?:"[^"]*"|\'[^\']*\')/is', $image)) {
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$missingAlt++;
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}
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}
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}
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if ($missingAlt > 0) {
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$issues[] = [
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'severity' => 'error',
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'message' => $missingAlt.' image(s) missing alt text.',
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'file' => $relative,
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];
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}
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if (preg_match('/<html\\b(?![^>]*\\blang=)/i', $content)) {
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$issues[] = [
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'severity' => 'warning',
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'message' => 'HTML element is missing a lang attribute.',
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'file' => $relative,
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];
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}
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$unnamedButtons = 0;
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if (preg_match_all('/<button\\b((?:(?:"[^"]*")|(?:\'[^\']*\')|[^\'">])*)>(.*?)<\\/button>/is', $content, $buttons, PREG_SET_ORDER)) {
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foreach ($buttons as $button) {
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$attributes = $button[1];
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$body = $button[2];
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$hasAccessibleAttribute = preg_match('/\\b(?:aria-label|aria-labelledby|title)\\s*=\\s*(?:"[^"]+"|\'[^\']+\')/is', $attributes) === 1;
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$visibleText = trim(html_entity_decode(strip_tags($body), ENT_QUOTES | ENT_HTML5));
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if (! $hasAccessibleAttribute && $visibleText === '') {
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$unnamedButtons++;
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}
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}
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}
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if ($unnamedButtons > 0) {
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$issues[] = [
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'severity' => 'warning',
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'message' => $unnamedButtons.' button(s) may lack an accessible name.',
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'file' => $relative,
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];
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}
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}
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return $issues;
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}
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}
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