122 lines
2.5 KiB
PHP
122 lines
2.5 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\DomCrawler\Field;
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/**
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* FormField is the abstract class for all form fields.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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abstract class FormField
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{
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/**
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* @var \DOMElement
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*/
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protected $node;
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/**
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* @var string
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*/
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protected $name;
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/**
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* @var string
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*/
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protected $value;
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/**
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* @var \DOMDocument
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*/
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protected $document;
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/**
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* @var \DOMXPath
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*/
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protected $xpath;
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/**
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* @var bool
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*/
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protected $disabled;
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/**
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* @param \DOMElement $node The node associated with this field
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*/
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public function __construct(\DOMElement $node)
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{
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$this->node = $node;
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$this->name = $node->getAttribute('name');
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$this->xpath = new \DOMXPath($node->ownerDocument);
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$this->initialize();
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}
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/**
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* Returns the label tag associated to the field or null if none.
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*/
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public function getLabel(): ?\DOMElement
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{
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$xpath = new \DOMXPath($this->node->ownerDocument);
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if ($this->node->hasAttribute('id')) {
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$labels = $xpath->query(sprintf('descendant::label[@for="%s"]', $this->node->getAttribute('id')));
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if ($labels->length > 0) {
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return $labels->item(0);
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}
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}
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$labels = $xpath->query('ancestor::label[1]', $this->node);
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return $labels->length > 0 ? $labels->item(0) : null;
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}
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/**
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* Returns the name of the field.
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*/
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public function getName(): string
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{
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return $this->name;
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}
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/**
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* Gets the value of the field.
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*/
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public function getValue(): string|array|null
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{
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return $this->value;
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}
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/**
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* Sets the value of the field.
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*/
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public function setValue(?string $value)
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{
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$this->value = $value ?? '';
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}
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/**
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* Returns true if the field should be included in the submitted values.
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*/
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public function hasValue(): bool
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{
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return true;
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}
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/**
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* Check if the current field is disabled.
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*/
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public function isDisabled(): bool
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{
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return $this->node->hasAttribute('disabled');
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}
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/**
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* Initializes the form field.
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*/
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abstract protected function initialize();
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}
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