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Direktori : /proc/thread-self/root/opt/alt/php55/usr/share/pear/Symfony/Component/DomCrawler/ |
Current File : //proc/thread-self/root/opt/alt/php55/usr/share/pear/Symfony/Component/DomCrawler/Form.php |
<?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\DomCrawler; use Symfony\Component\DomCrawler\Field\FormField; /** * Form represents an HTML form. * * @author Fabien Potencier <fabien@symfony.com> * * @api */ class Form extends Link implements \ArrayAccess { /** * @var \DOMNode */ private $button; /** * @var Field\FormField[] */ private $fields; /** * Constructor. * * @param \DOMNode $node A \DOMNode instance * @param string $currentUri The URI of the page where the form is embedded * @param string $method The method to use for the link (if null, it defaults to the method defined by the form) * * @throws \LogicException if the node is not a button inside a form tag * * @api */ public function __construct(\DOMNode $node, $currentUri, $method = null) { parent::__construct($node, $currentUri, $method); $this->initialize(); } /** * Gets the form node associated with this form. * * @return \DOMNode A \DOMNode instance */ public function getFormNode() { return $this->node; } /** * Sets the value of the fields. * * @param array $values An array of field values * * @return Form * * @api */ public function setValues(array $values) { foreach ($values as $name => $value) { $this->fields->set($name, $value); } return $this; } /** * Gets the field values. * * The returned array does not include file fields (@see getFiles). * * @return array An array of field values. * * @api */ public function getValues() { $values = array(); foreach ($this->fields->all() as $name => $field) { if ($field->isDisabled()) { continue; } if (!$field instanceof Field\FileFormField && $field->hasValue()) { $values[$name] = $field->getValue(); } } return $values; } /** * Gets the file field values. * * @return array An array of file field values. * * @api */ public function getFiles() { if (!in_array($this->getMethod(), array('POST', 'PUT', 'DELETE', 'PATCH'))) { return array(); } $files = array(); foreach ($this->fields->all() as $name => $field) { if ($field->isDisabled()) { continue; } if ($field instanceof Field\FileFormField) { $files[$name] = $field->getValue(); } } return $files; } /** * Gets the field values as PHP. * * This method converts fields with the array notation * (like foo[bar] to arrays) like PHP does. * * @return array An array of field values. * * @api */ public function getPhpValues() { $values = array(); foreach ($this->getValues() as $name => $value) { $qs = http_build_query(array($name => $value), '', '&'); parse_str($qs, $expandedValue); $varName = substr($name, 0, strlen(key($expandedValue))); $values = array_replace_recursive($values, array($varName => current($expandedValue))); } return $values; } /** * Gets the file field values as PHP. * * This method converts fields with the array notation * (like foo[bar] to arrays) like PHP does. * * @return array An array of field values. * * @api */ public function getPhpFiles() { $values = array(); foreach ($this->getFiles() as $name => $value) { $qs = http_build_query(array($name => $value), '', '&'); parse_str($qs, $expandedValue); $varName = substr($name, 0, strlen(key($expandedValue))); $values = array_replace_recursive($values, array($varName => current($expandedValue))); } return $values; } /** * Gets the URI of the form. * * The returned URI is not the same as the form "action" attribute. * This method merges the value if the method is GET to mimics * browser behavior. * * @return string The URI * * @api */ public function getUri() { $uri = parent::getUri(); if (!in_array($this->getMethod(), array('POST', 'PUT', 'DELETE', 'PATCH')) && $queryString = http_build_query($this->getValues(), null, '&')) { $sep = false === strpos($uri, '?') ? '?' : '&'; $uri .= $sep.$queryString; } return $uri; } protected function getRawUri() { return $this->node->getAttribute('action'); } /** * Gets the form method. * * If no method is defined in the form, GET is returned. * * @return string The method * * @api */ public function getMethod() { if (null !== $this->method) { return $this->method; } return $this->node->getAttribute('method') ? strtoupper($this->node->getAttribute('method')) : 'GET'; } /** * Returns true if the named field exists. * * @param string $name The field name * * @return Boolean true if the field exists, false otherwise * * @api */ public function has($name) { return $this->fields->has($name); } /** * Removes a field from the form. * * @param string $name The field name * * @throws \InvalidArgumentException when the name is malformed * * @api */ public function remove($name) { $this->fields->remove($name); } /** * Gets a named field. * * @param string $name The field name * * @return FormField The field instance * * @throws \InvalidArgumentException When field is not present in this form * * @api */ public function get($name) { return $this->fields->get($name); } /** * Sets a named field. * * @param FormField $field The field * * @api */ public function set(FormField $field) { $this->fields->add($field); } /** * Gets all fields. * * @return FormField[] An array of fields * * @api */ public function all() { return $this->fields->all(); } /** * Returns true if the named field exists. * * @param string $name The field name * * @return Boolean true if the field exists, false otherwise */ public function offsetExists($name) { return $this->has($name); } /** * Gets the value of a field. * * @param string $name The field name * * @return FormField The associated Field instance * * @throws \InvalidArgumentException if the field does not exist */ public function offsetGet($name) { return $this->fields->get($name); } /** * Sets the value of a field. * * @param string $name The field name * @param string|array $value The value of the field * * @throws \InvalidArgumentException if the field does not exist */ public function offsetSet($name, $value) { $this->fields->set($name, $value); } /** * Removes a field from the form. * * @param string $name The field name */ public function offsetUnset($name) { $this->fields->remove($name); } /** * Disables validation * * @return self */ public function disableValidation() { foreach ($this->fields->all() as $field) { if ($field instanceof Field\ChoiceFormField) { $field->disableValidation(); } } return $this; } /** * Sets the node for the form. * * Expects a 'submit' button \DOMNode and finds the corresponding form element. * * @param \DOMNode $node A \DOMNode instance * * @throws \LogicException If given node is not a button or input or does not have a form ancestor */ protected function setNode(\DOMNode $node) { $this->button = $node; if ('button' == $node->nodeName || ('input' == $node->nodeName && in_array($node->getAttribute('type'), array('submit', 'button', 'image')))) { if ($node->hasAttribute('form')) { // if the node has the HTML5-compliant 'form' attribute, use it $formId = $node->getAttribute('form'); $form = $node->ownerDocument->getElementById($formId); if (null === $form) { throw new \LogicException(sprintf('The selected node has an invalid form attribute (%s).', $formId)); } $this->node = $form; return; } // we loop until we find a form ancestor do { if (null === $node = $node->parentNode) { throw new \LogicException('The selected node does not have a form ancestor.'); } } while ('form' != $node->nodeName); } elseif ('form' != $node->nodeName) { throw new \LogicException(sprintf('Unable to submit on a "%s" tag.', $node->nodeName)); } $this->node = $node; } /** * Adds form elements related to this form. * * Creates an internal copy of the submitted 'button' element and * the form node or the entire document depending on whether we need * to find non-descendant elements through HTML5 'form' attribute. */ private function initialize() { $this->fields = new FormFieldRegistry(); $document = new \DOMDocument('1.0', 'UTF-8'); $xpath = new \DOMXPath($document); $root = $document->appendChild($document->createElement('_root')); // add submitted button if it has a valid name if ('form' !== $this->button->nodeName && $this->button->hasAttribute('name') && $this->button->getAttribute('name')) { if ('input' == $this->button->nodeName && 'image' == $this->button->getAttribute('type')) { $name = $this->button->getAttribute('name'); $this->button->setAttribute('value', '0'); // temporarily change the name of the input node for the x coordinate $this->button->setAttribute('name', $name.'.x'); $this->set(new Field\InputFormField($document->importNode($this->button, true))); // temporarily change the name of the input node for the y coordinate $this->button->setAttribute('name', $name.'.y'); $this->set(new Field\InputFormField($document->importNode($this->button, true))); // restore the original name of the input node $this->button->setAttribute('name', $name); } else { $this->set(new Field\InputFormField($document->importNode($this->button, true))); } } // find form elements corresponding to the current form if ($this->node->hasAttribute('id')) { // traverse through the whole document $node = $document->importNode($this->node->ownerDocument->documentElement, true); $root->appendChild($node); // corresponding elements are either descendants or have a matching HTML5 form attribute $formId = Crawler::xpathLiteral($this->node->getAttribute('id')); $fieldNodes = $xpath->query(sprintf('descendant::input[@form=%s] | descendant::button[@form=%s] | descendant::textarea[@form=%s] | descendant::select[@form=%s] | //form[@id=%s]//input[not(@form)] | //form[@id=%s]//button[not(@form)] | //form[@id=%s]//textarea[not(@form)] | //form[@id=%s]//select[not(@form)]', $formId, $formId, $formId, $formId, $formId, $formId, $formId, $formId), $root); foreach ($fieldNodes as $node) { $this->addField($node); } } else { // parent form has no id, add descendant elements only $node = $document->importNode($this->node, true); $root->appendChild($node); // descendant elements with form attribute are not part of this form $fieldNodes = $xpath->query('descendant::input[not(@form)] | descendant::button[not(@form)] | descendant::textarea[not(@form)] | descendant::select[not(@form)]', $root); foreach ($fieldNodes as $node) { $this->addField($node); } } } private function addField(\DOMNode $node) { if (!$node->hasAttribute('name') || !$node->getAttribute('name')) { return; } $nodeName = $node->nodeName; if ('select' == $nodeName || 'input' == $nodeName && 'checkbox' == $node->getAttribute('type')) { $this->set(new Field\ChoiceFormField($node)); } elseif ('input' == $nodeName && 'radio' == $node->getAttribute('type')) { if ($this->has($node->getAttribute('name'))) { $this->get($node->getAttribute('name'))->addChoice($node); } else { $this->set(new Field\ChoiceFormField($node)); } } elseif ('input' == $nodeName && 'file' == $node->getAttribute('type')) { $this->set(new Field\FileFormField($node)); } elseif ('input' == $nodeName && !in_array($node->getAttribute('type'), array('submit', 'button', 'image'))) { $this->set(new Field\InputFormField($node)); } elseif ('textarea' == $nodeName) { $this->set(new Field\TextareaFormField($node)); } } }