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| 1 | +<?php |
| 2 | + |
| 3 | +declare(strict_types=1); |
| 4 | + |
| 5 | +namespace Hofff\Contao\FormTools\EventListener\Hook; |
| 6 | + |
| 7 | +use Contao\ContentModel; |
| 8 | +use Contao\CoreBundle\DependencyInjection\Attribute\AsHook; |
| 9 | +use Contao\FrontendTemplate; |
| 10 | +use Contao\ModuleModel; |
| 11 | +use Symfony\Component\HttpFoundation\RequestStack; |
| 12 | +use Symfony\Component\HttpFoundation\Session\Session; |
| 13 | + |
| 14 | +use function implode; |
| 15 | +use function str_replace; |
| 16 | + |
| 17 | +final class InjectFormMessagesListener |
| 18 | +{ |
| 19 | + public function __construct(private readonly RequestStack $requestStack) |
| 20 | + { |
| 21 | + } |
| 22 | + |
| 23 | + #[AsHook('getFrontendModule')] |
| 24 | + #[AsHook('getContentElement')] |
| 25 | + public function onGetModuleOrElement(ContentModel|ModuleModel $element, string $buffer): string |
| 26 | + { |
| 27 | + if ($element->type !== 'form') { |
| 28 | + return $buffer; |
| 29 | + } |
| 30 | + |
| 31 | + $errors = $this->getErrorMessages((string) $element->form); |
| 32 | + if ($errors === null) { |
| 33 | + return $buffer; |
| 34 | + } |
| 35 | + |
| 36 | + return str_replace( |
| 37 | + '<div class="formbody">', |
| 38 | + implode("\n", $errors) . "\n" . '<div class="formbody">', |
| 39 | + $buffer, |
| 40 | + ); |
| 41 | + } |
| 42 | + |
| 43 | + #[AsHook('parseFrontendTemplate')] |
| 44 | + public function onParseAjaxForTemplate(string $buffer, string $templateName, FrontendTemplate $template): string |
| 45 | + { |
| 46 | + if ($templateName !== 'form_inline') { |
| 47 | + return $buffer; |
| 48 | + } |
| 49 | + |
| 50 | + $request = $this->requestStack->getCurrentRequest(); |
| 51 | + if (! $request || ! $request->isXmlHttpRequest()) { |
| 52 | + return $buffer; |
| 53 | + } |
| 54 | + |
| 55 | + $errors = $this->getErrorMessages((string) $template->id); |
| 56 | + if ($errors === null) { |
| 57 | + return $buffer; |
| 58 | + } |
| 59 | + |
| 60 | + return str_replace( |
| 61 | + '<div class="formbody">', |
| 62 | + implode("\n", $errors) . "\n" . '<div class="formbody">', |
| 63 | + $buffer, |
| 64 | + ); |
| 65 | + } |
| 66 | + |
| 67 | + /** |
| 68 | + * @return list<string>|null |
| 69 | + * |
| 70 | + * @psalm-suppress MoreSpecificReturnType |
| 71 | + * @psalm-suppress LessSpecificReturnStatement |
| 72 | + */ |
| 73 | + private function getErrorMessages(string $formId): array|null |
| 74 | + { |
| 75 | + $request = $this->requestStack->getCurrentRequest(); |
| 76 | + if (! $request) { |
| 77 | + return null; |
| 78 | + } |
| 79 | + |
| 80 | + $session = $request->getSession(); |
| 81 | + if (! $session instanceof Session) { |
| 82 | + return null; |
| 83 | + } |
| 84 | + |
| 85 | + $flashBag = $session->getFlashBag(); |
| 86 | + $key = 'hofff_formtools_' . $formId; |
| 87 | + |
| 88 | + if (! $flashBag->has($key)) { |
| 89 | + return null; |
| 90 | + } |
| 91 | + |
| 92 | + return $flashBag->get($key); |
| 93 | + } |
| 94 | +} |
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