181 lines
3.7 KiB
PHP
181 lines
3.7 KiB
PHP
<?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\BadMethodCallException;
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/**
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* @author Bernhard Schussek <bschussek@gmail.com>
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*
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* @implements \ArrayAccess<int|string, FormView>
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* @implements \IteratorAggregate<int|string, FormView>
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*/
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class FormView implements \ArrayAccess, \IteratorAggregate, \Countable
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{
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/**
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* The variables assigned to this view.
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*/
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public $vars = [
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'value' => null,
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'attr' => [],
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];
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/**
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* The parent view.
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*/
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public $parent;
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/**
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* The child views.
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*
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* @var array<int|string, FormView>
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*/
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public $children = [];
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/**
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* Is the form attached to this renderer rendered?
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*
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* Rendering happens when either the widget or the row method was called.
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* Row implicitly includes widget, however certain rendering mechanisms
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* have to skip widget rendering when a row is rendered.
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*
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* @var bool
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*/
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private $rendered = false;
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private $methodRendered = false;
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public function __construct(self $parent = null)
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{
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$this->parent = $parent;
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}
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/**
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* Returns whether the view was already rendered.
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*
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* @return bool
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*/
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public function isRendered()
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{
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if (true === $this->rendered || 0 === \count($this->children)) {
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return $this->rendered;
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}
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foreach ($this->children as $child) {
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if (!$child->isRendered()) {
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return false;
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}
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}
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return $this->rendered = true;
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}
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/**
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* Marks the view as rendered.
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*
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* @return $this
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*/
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public function setRendered()
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{
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$this->rendered = true;
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return $this;
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}
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/**
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* @return bool
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*/
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public function isMethodRendered()
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{
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return $this->methodRendered;
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}
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public function setMethodRendered()
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{
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$this->methodRendered = true;
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}
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/**
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* Returns a child by name (implements \ArrayAccess).
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*
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* @param int|string $name The child name
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*
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* @return self
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*/
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#[\ReturnTypeWillChange]
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public function offsetGet($name)
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{
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return $this->children[$name];
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}
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/**
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* Returns whether the given child exists (implements \ArrayAccess).
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*
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* @param int|string $name The child name
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*
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* @return bool
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*/
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#[\ReturnTypeWillChange]
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public function offsetExists($name)
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{
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return isset($this->children[$name]);
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}
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/**
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* Implements \ArrayAccess.
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*
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* @return void
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*
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* @throws BadMethodCallException always as setting a child by name is not allowed
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*/
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#[\ReturnTypeWillChange]
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public function offsetSet($name, $value)
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{
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throw new BadMethodCallException('Not supported.');
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}
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/**
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* Removes a child (implements \ArrayAccess).
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*
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* @param int|string $name The child name
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*
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* @return void
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*/
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#[\ReturnTypeWillChange]
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public function offsetUnset($name)
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{
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unset($this->children[$name]);
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}
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/**
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* Returns an iterator to iterate over children (implements \IteratorAggregate).
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*
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* @return \ArrayIterator<int|string, FormView>
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*/
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#[\ReturnTypeWillChange]
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public function getIterator()
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{
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return new \ArrayIterator($this->children);
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}
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/**
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* Implements \Countable.
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*
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* @return int
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*/
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#[\ReturnTypeWillChange]
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public function count()
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{
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return \count($this->children);
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}
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}
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