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<?php

/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace Symfony\Component\Form;

interface FormTypeInterface
{
    /**
* Builds the form.
*
* This method gets called for each type in the hierarchy starting form the
* top most type.
* Type extensions can further modify the form.
*
* @see FormTypeExtensionInterface::buildForm()
*
* @param FormBuilder $builder The form builder
* @param array $options The options
*/
    public function buildForm(FormBuilder $builder, array $options);

    /**
* Builds the form view.
*
* This method gets called for each type in the hierarchy starting form the
* top most type.
* Type extensions can further modify the view.
*
* @see FormTypeExtensionInterface::buildView()
*
* @param FormView $view The view
* @param FormInterface $form The form
*/
    public function buildView(FormView $view, FormInterface $form);

    /**
* Builds the form view.
*
* This method gets called for each type in the hierarchy starting form the
* top most type.
* Type extensions can further modify the view.
*
* Children views have been built when this method gets called so you get
* a chance to modify them.
*
* @see FormTypeExtensionInterface::buildViewBottomUp()
*
* @param FormView $view The view
* @param FormInterface $form The form
*/
    public function buildViewBottomUp(FormView $view, FormInterface $form);

    /**
* Returns a builder for the current type.
*
* The builder is retrieved by going up in the type hierarchy when a type does
* not provide one.
*
* @param string $name The name of the builder
* @param FormFactoryInterface $factory The form factory
* @param array $options The options
*
* @return FormBuilder|null A form builder or null when the type does not have a builder
*/
    public function createBuilder($name, FormFactoryInterface $factory, array $options);

    /**
* Returns the default options for this type.
*
* @param array $options
*
* @return array The default options
*/
    public function getDefaultOptions(array $options);

    /**
* Returns the allowed option values for each option (if any).
*
* @param array $options
*
* @return array The allowed option values
*/
    public function getAllowedOptionValues(array $options);

    /**
* Returns the name of the parent type.
*
* @param array $options
*
* @return string|null The name of the parent type if any otherwise null
*/
    public function getParent(array $options);

    /**
* Returns the name of this type.
*
* @return string The name of this type
*/
    public function getName();

    /**
* Adds extensions for this type.
*
* @param array $extensions An array of FormTypeExtensionInterface
*
* @throws UnexpectedTypeException if any extension does not implement FormTypeExtensionInterface
*/
    public function setExtensions(array $extensions);

    /**
* Returns the extensions associated with this type.
*
* @return array An array of FormTypeExtensionInterface
*/
    public function getExtensions();
}
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