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<?php |
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namespace Braincrafted\Bundle\BootstrapBundle\Form\Extension; |
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use Symfony\Component\Form\AbstractTypeExtension; |
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use Symfony\Component\Form\ButtonBuilder; |
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use Symfony\Component\Form\FormBuilderInterface; |
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use Symfony\Component\Form\FormInterface; |
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use Symfony\Component\Form\FormView; |
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use Braincrafted\Bundle\BootstrapBundle\Util\LegacyFormHelper; |
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/** |
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* Class InputGroupButtonExtension |
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* |
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* Handles prepended and appended buttons to input fields. |
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* Buttons are created and stored during the BuildForm phase and rendered during the buildView Phase. |
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* |
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* Known issues: |
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* - since at build time the form parent is unavailable, two forms with fields of the same name, with buttons attached |
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* may cause conflict. |
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* |
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* @package Braincrafted\Bundle\BootstrapBundle\Form\Extension |
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*/ |
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class InputGroupButtonExtension extends AbstractTypeExtension |
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{ |
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/** |
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* @var array |
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*/ |
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protected $buttons = array(); |
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/** |
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* Returns the name of the type being extended. |
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* |
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* @return string The name of the type being extended |
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*/ |
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public function getExtendedType() |
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{ |
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// map old class to new one using LegacyFormHelper |
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return LegacyFormHelper::getType('text'); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function buildView(FormView $view, FormInterface $form, array $options) |
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{ |
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if (!isset($this->buttons[$form->getName()])) { |
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return; |
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} |
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$storedButtons = $this->buttons[$form->getName()]; |
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if (isset($storedButtons['prepend']) && $storedButtons['prepend'] !== null) { |
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$view->vars['input_group_button_prepend'] = $storedButtons['prepend']->getForm()->createView(); |
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} |
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if (isset($storedButtons['append']) && $storedButtons['append'] !== null) { |
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$view->vars['input_group_button_append'] = $storedButtons['append']->getForm()->createView(); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function buildForm(FormBuilderInterface $builder, array $options) |
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{ |
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if (!isset($options['attr']) || !isset($options['attr']['input_group'])) { |
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return; |
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} |
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if (isset($options['attr']['input_group']['button_prepend'])) { |
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$this->storeButton( |
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$this->addButton( |
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$builder, |
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$options['attr']['input_group']['button_prepend'] |
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), |
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$builder, |
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'prepend' |
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); |
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} |
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if (isset($options['attr']['input_group']['button_append'])) { |
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$this->storeButton( |
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$this->addButton( |
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$builder, |
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$options['attr']['input_group']['button_append'] |
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), |
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$builder, |
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'append' |
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); |
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} |
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} |
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/** |
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* Adds a button |
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* |
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* @param FormBuilderInterface $builder |
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* @param array $config |
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* |
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* @return ButtonBuilder |
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*/ |
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protected function addButton(FormBuilderInterface $builder, $config) |
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{ |
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$options = (isset($config['options']))? $config['options'] : array(); |
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return $builder->create($config['name'], $config['type'], $options); |
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} |
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/** |
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* Stores a button for later rendering |
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* |
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* @param ButtonBuilder $buttonBuilder |
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* @param FormBuilderInterface $form |
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* @param string $position |
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*/ |
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protected function storeButton(ButtonBuilder $buttonBuilder, FormBuilderInterface $form, $position) |
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{ |
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if (!isset($this->buttons[$form->getName()])) { |
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$this->buttons[$form->getName()] = array(); |
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} |
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$this->buttons[$form->getName()][$position] = $buttonBuilder; |
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} |
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} |
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braincrafted /
bootstrap-bundle
