165 lines
3.8 KiB
PHP
165 lines
3.8 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Form;
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use Symfony\Component\Form\Exception\UnexpectedTypeException;
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use Symfony\Component\Form\Exception\FormException;
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/**
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* The central registry of the Form component.
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*
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* @author Bernhard Schussek <bschussek@gmail.com>
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*/
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class FormRegistry implements FormRegistryInterface
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{
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/**
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* Extensions
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* @var array An array of FormExtensionInterface
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*/
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private $extensions = array();
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/**
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* @var array
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*/
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private $types = array();
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/**
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* @var FormTypeGuesserInterface
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*/
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private $guesser;
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/**
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* Constructor.
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*
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* @param array $extensions An array of FormExtensionInterface
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*
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* @throws UnexpectedTypeException if any extension does not implement FormExtensionInterface
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*/
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public function __construct(array $extensions)
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{
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foreach ($extensions as $extension) {
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if (!$extension instanceof FormExtensionInterface) {
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throw new UnexpectedTypeException($extension, 'Symfony\Component\Form\FormExtensionInterface');
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}
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}
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$this->extensions = $extensions;
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}
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/**
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* {@inheritdoc}
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*/
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public function resolveType(FormTypeInterface $type)
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{
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$typeExtensions = array();
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foreach ($this->extensions as $extension) {
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/* @var FormExtensionInterface $extension */
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$typeExtensions = array_merge(
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$typeExtensions,
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$extension->getTypeExtensions($type->getName())
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);
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}
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$parent = $type->getParent() ? $this->getType($type->getParent()) : null;
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return new ResolvedFormType($type, $typeExtensions, $parent);
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}
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/**
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* {@inheritdoc}
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*/
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public function addType(ResolvedFormTypeInterface $type)
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{
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$this->types[$type->getName()] = $type;
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}
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/**
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* {@inheritdoc}
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*/
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public function getType($name)
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{
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if (!is_string($name)) {
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throw new UnexpectedTypeException($name, 'string');
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}
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if (!isset($this->types[$name])) {
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$type = null;
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foreach ($this->extensions as $extension) {
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/* @var FormExtensionInterface $extension */
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if ($extension->hasType($name)) {
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$type = $extension->getType($name);
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break;
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}
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}
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if (!$type) {
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throw new FormException(sprintf('Could not load type "%s"', $name));
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}
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$this->addType($this->resolveType($type));
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}
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return $this->types[$name];
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}
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/**
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* {@inheritdoc}
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*/
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public function hasType($name)
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{
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if (isset($this->types[$name])) {
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return true;
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}
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try {
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$this->getType($name);
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} catch (FormException $e) {
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return false;
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}
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return true;
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}
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/**
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* {@inheritdoc}
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*/
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public function getTypeGuesser()
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{
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if (null === $this->guesser) {
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$guessers = array();
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foreach ($this->extensions as $extension) {
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/* @var FormExtensionInterface $extension */
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$guesser = $extension->getTypeGuesser();
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if ($guesser) {
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$guessers[] = $guesser;
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}
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}
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$this->guesser = new FormTypeGuesserChain($guessers);
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}
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return $this->guesser;
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}
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/**
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* {@inheritdoc}
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*/
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public function getExtensions()
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{
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return $this->extensions;
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}
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}
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