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<?php |
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namespace Presta\ImageBundle\Form\Type; |
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use Presta\ImageBundle\Form\DataTransformer\Base64ToImageTransformer; |
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use Presta\ImageBundle\Model\AspectRatio; |
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use Symfony\Component\Form\AbstractType; |
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use Symfony\Component\Form\Extension\Core\Type\CheckboxType; |
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use Symfony\Component\Form\Extension\Core\Type\HiddenType; |
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use Symfony\Component\Form\FormBuilderInterface; |
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use Symfony\Component\Form\FormEvent; |
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use Symfony\Component\Form\FormEvents; |
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use Symfony\Component\Form\FormInterface; |
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use Symfony\Component\Form\FormView; |
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use Symfony\Component\OptionsResolver\Options; |
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use Symfony\Component\OptionsResolver\OptionsResolver; |
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use Vich\UploaderBundle\Handler\UploadHandler; |
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use Vich\UploaderBundle\Storage\StorageInterface; |
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class ImageType extends AbstractType |
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{ |
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private $storage; |
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private $handler; |
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public function __construct(StorageInterface $storage, UploadHandler $handler) |
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{ |
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$this->storage = $storage; |
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$this->handler = $handler; |
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} |
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public function buildForm(FormBuilderInterface $builder, array $options): void |
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{ |
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$builder |
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->add('base64', HiddenType::class, [ |
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'required' => $options['required'], |
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'attr' => [ |
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'class' => 'cropper-base64', |
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], |
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]) |
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; |
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$builder->addModelTransformer(new Base64ToImageTransformer()); |
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if ($options['allow_delete'] && !$options['required']) { |
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$this->buildDeleteField($builder, $options); |
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} |
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} |
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public function configureOptions(OptionsResolver $resolver): void |
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{ |
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$aspectRatios = []; |
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$this->setAspectRatio($aspectRatios, '16:9', 1.78); |
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$this->setAspectRatio($aspectRatios, '4:3', 1.33); |
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$this->setAspectRatio($aspectRatios, '1', 1); |
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$this->setAspectRatio($aspectRatios, '2:3', 0.66); |
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$this->setAspectRatio($aspectRatios, 'nan', null, true); |
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$resolver |
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->setDefault('allow_delete', true) |
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->setDefault('delete_label', 'btn_delete') |
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->setDefault('aspect_ratios', $aspectRatios) |
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->setDefault('cropper_options', ['autoCropArea' => 1]) |
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->setDefault('max_width', 320) |
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->setDefault('max_height', 180) |
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->setDefault('preview_width', function (Options $options) { |
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return sprintf('%dpx', $options['max_width']); |
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}) |
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->setDefault('preview_height', function (Options $options) { |
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return sprintf('%dpx', $options['max_height']); |
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}) |
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->setDefault('upload_button_class', 'btn btn-sm btn-primary') |
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->setDefault('upload_button_icon', 'fa fa-upload') |
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->setDefault('cancel_button_class', 'btn btn-default') |
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->setDefault('save_button_class', 'btn btn-primary') |
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->setDefault('download_uri', null) |
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->setDefault('download_link', true) |
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->setDefault('enable_locale', true) |
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->setDefault('enable_remote', true) |
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->setDefault('enable_rotation', false) |
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->setDefault('translation_domain', 'PrestaImageBundle') |
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->setDefault('upload_mimetype', 'image/png') |
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->setDefault('upload_quality', 0.92) // default value: https://developer.mozilla.org/de/docs/Web/API/HTMLCanvasElement/toDataURL |
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->setDefault('error_bubbling', false) |
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; |
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} |
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public function buildView(FormView $view, FormInterface $form, array $options): void |
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{ |
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$view->vars['aspect_ratios'] = $options['aspect_ratios']; |
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$view->vars['cropper_options'] = json_encode($options['cropper_options']); |
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$view->vars['max_width'] = $options['max_width']; |
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$view->vars['max_height'] = $options['max_height']; |
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$view->vars['preview_width'] = $options['preview_width']; |
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$view->vars['preview_height'] = $options['preview_height']; |
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$view->vars['upload_button_class'] = $options['upload_button_class']; |
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$view->vars['upload_button_icon'] = $options['upload_button_icon']; |
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$view->vars['cancel_button_class'] = $options['cancel_button_class']; |
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$view->vars['save_button_class'] = $options['save_button_class']; |
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$view->vars['enable_locale'] = $options['enable_locale']; |
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$view->vars['enable_remote'] = $options['enable_remote']; |
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$view->vars['enable_rotation'] = $options['enable_rotation']; |
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$view->vars['upload_mimetype'] = $options['upload_mimetype']; |
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$view->vars['upload_quality'] = $options['upload_quality']; |
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$view->vars['object'] = $form->getParent()->getData(); |
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if ($options['download_link'] && $view->vars['object']) { |
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$view->vars['download_uri'] = $this->storage->resolveUri($form->getParent()->getData(), $form->getName()); |
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} |
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} |
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private function buildDeleteField(FormBuilderInterface $builder, array $options): void |
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{ |
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// add delete only if there is a file |
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$builder->addEventListener(FormEvents::PRE_SET_DATA, function (FormEvent $event) use ($options) { |
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$form = $event->getForm(); |
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$object = $form->getParent()->getData(); |
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// no object or no uploaded file: no delete button |
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if (null === $object || null === $this->storage->resolvePath($object, $form->getName())) { |
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return; |
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} |
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$form->add('delete', CheckboxType::class, [ |
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'label' => $options['delete_label'], |
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'required' => false, |
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'mapped' => false, |
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'translation_domain' => $options['translation_domain'] |
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]); |
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}); |
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$builder->addEventListener(FormEvents::PRE_SUBMIT, function (FormEvent $event) { |
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$data = $event->getData(); |
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$delete = isset($data['delete']) ? $data['delete'] : false; |
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if ($delete) { |
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$data['base64'] = null; |
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$event->setData($data); |
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} |
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}); |
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// delete file if needed |
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$builder->addEventListener(FormEvents::POST_SUBMIT, function (FormEvent $event) use ($options) { |
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$form = $event->getForm(); |
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$delete = $form->has('delete') ? $form->get('delete')->getData() : false; |
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$entity = $form->getParent()->getData(); |
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if (!$delete) { |
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return; |
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} |
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$this->handler->remove($entity, $form->getName()); |
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}); |
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} |
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private function setAspectRatio(array &$aspectRatios, string $key, ?float $value, bool $checked = false): void |
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{ |
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$aspectRatios[$key] = new AspectRatio($value, "aspect_ratio.$key", $checked); |
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} |
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} |
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prestaconcept /
PrestaImageBundle
