153 lines
3.4 KiB
PHP
153 lines
3.4 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 array $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 child views.
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*
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* @var array<int|string, FormView>
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*/
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public array $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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private bool $rendered = false;
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private bool $methodRendered = false;
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/**
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* @param FormView|null $parent The parent view
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*/
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public function __construct(
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public ?self $parent = null,
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) {
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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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public function isRendered(): bool
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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 $this
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*/
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public function setRendered(): static
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{
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$this->rendered = true;
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return $this;
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}
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public function isMethodRendered(): bool
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{
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return $this->methodRendered;
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}
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public function setMethodRendered(): void
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{
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$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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public function offsetGet(mixed $name): self
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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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public function offsetExists(mixed $name): bool
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{
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return isset($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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* @throws BadMethodCallException always as setting a child by name is not allowed
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*/
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public function offsetSet(mixed $name, mixed $value): void
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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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public function offsetUnset(mixed $name): void
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{
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unset($this->children[$name]);
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}
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/**
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* Returns an iterator to iterate over children (implements \IteratorAggregate).
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*
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* @return \ArrayIterator<int|string, FormView>
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*/
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public function getIterator(): \ArrayIterator
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{
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return new \ArrayIterator($this->children);
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}
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public function count(): int
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{
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return \count($this->children);
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}
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}
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