_test/vendor/symfony/css-selector/XPath/Extension/HtmlExtension.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\CssSelector\XPath\Extension;
  13
  14 use Symfony\Component\CssSelector\Exception\ExpressionErrorException;
  15 use Symfony\Component\CssSelector\Node\FunctionNode;
  16 use Symfony\Component\CssSelector\XPath\Translator;
  17 use Symfony\Component\CssSelector\XPath\XPathExpr;
  18
  19 /**
  20  * XPath expression translator HTML extension.
  21  *
  22  * This component is a port of the Python cssselect library,
  23  * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
  24  *
  25  * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
  26  *
  27  * @internal
  28  */
  29 class HtmlExtension extends AbstractExtension
  30 {
  31     public function __construct(Translator $translator)
  32     {
  33         $translator
  34             ->getExtension('node')
  35             ->setFlag(NodeExtension::ELEMENT_NAME_IN_LOWER_CASE, true)
  36             ->setFlag(NodeExtension::ATTRIBUTE_NAME_IN_LOWER_CASE, true);
  37     }
  38
  39     /**
  40      * {@inheritdoc}
  41      */
  42     public function getPseudoClassTranslators(): array
  43     {
  44         return [
  45             'checked' => [$this, 'translateChecked'],
  46             'link' => [$this, 'translateLink'],
  47             'disabled' => [$this, 'translateDisabled'],
  48             'enabled' => [$this, 'translateEnabled'],
  49             'selected' => [$this, 'translateSelected'],
  50             'invalid' => [$this, 'translateInvalid'],
  51             'hover' => [$this, 'translateHover'],
  52             'visited' => [$this, 'translateVisited'],
  53         ];
  54     }
  55
  56     /**
  57      * {@inheritdoc}
  58      */
  59     public function getFunctionTranslators(): array
  60     {
  61         return [
  62             'lang' => [$this, 'translateLang'],
  63         ];
  64     }
  65
  66     public function translateChecked(XPathExpr $xpath): XPathExpr
  67     {
  68         return $xpath->addCondition(
  69             '(@checked '
  70             ."and (name(.) = 'input' or name(.) = 'command')"
  71             ."and (@type = 'checkbox' or @type = 'radio'))"
  72         );
  73     }
  74
  75     public function translateLink(XPathExpr $xpath): XPathExpr
  76     {
  77         return $xpath->addCondition("@href and (name(.) = 'a' or name(.) = 'link' or name(.) = 'area')");
  78     }
  79
  80     public function translateDisabled(XPathExpr $xpath): XPathExpr
  81     {
  82         return $xpath->addCondition(
  83             '('
  84                 .'@disabled and'
  85                 .'('
  86                     ."(name(.) = 'input' and @type != 'hidden')"
  87                     ." or name(.) = 'button'"
  88                     ." or name(.) = 'select'"
  89                     ." or name(.) = 'textarea'"
  90                     ." or name(.) = 'command'"
  91                     ." or name(.) = 'fieldset'"
  92                     ." or name(.) = 'optgroup'"
  93                     ." or name(.) = 'option'"
  94                 .')'
  95             .') or ('
  96                 ."(name(.) = 'input' and @type != 'hidden')"
  97                 ." or name(.) = 'button'"
  98                 ." or name(.) = 'select'"
  99                 ." or name(.) = 'textarea'"
 100             .')'
 101             .' and ancestor::fieldset[@disabled]'
 102         );
 103         // todo: in the second half, add "and is not a descendant of that fieldset element's first legend element child, if any."
 104     }
 105
 106     public function translateEnabled(XPathExpr $xpath): XPathExpr
 107     {
 108         return $xpath->addCondition(
 109             '('
 110                 .'@href and ('
 111                     ."name(.) = 'a'"
 112                     ." or name(.) = 'link'"
 113                     ." or name(.) = 'area'"
 114                 .')'
 115             .') or ('
 116                 .'('
 117                     ."name(.) = 'command'"
 118                     ." or name(.) = 'fieldset'"
 119                     ." or name(.) = 'optgroup'"
 120                 .')'
 121                 .' and not(@disabled)'
 122             .') or ('
 123                 .'('
 124                     ."(name(.) = 'input' and @type != 'hidden')"
 125                     ." or name(.) = 'button'"
 126                     ." or name(.) = 'select'"
 127                     ." or name(.) = 'textarea'"
 128                     ." or name(.) = 'keygen'"
 129                 .')'
 130                 .' and not (@disabled or ancestor::fieldset[@disabled])'
 131             .') or ('
 132                 ."name(.) = 'option' and not("
 133                     .'@disabled or ancestor::optgroup[@disabled]'
 134                 .')'
 135             .')'
 136         );
 137     }
 138
 139     /**
 140      * @throws ExpressionErrorException
 141      */
 142     public function translateLang(XPathExpr $xpath, FunctionNode $function): XPathExpr
 143     {
 144         $arguments = $function->getArguments();
 145         foreach ($arguments as $token) {
 146             if (!($token->isString() || $token->isIdentifier())) {
 147                 throw new ExpressionErrorException('Expected a single string or identifier for :lang(), got '.implode(', ', $arguments));
 148             }
 149         }
 150
 151         return $xpath->addCondition(sprintf(
 152             'ancestor-or-self::*[@lang][1][starts-with(concat('
 153             ."translate(@%s, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), '-')"
 154             .', %s)]',
 155             'lang',
 156             Translator::getXpathLiteral(strtolower($arguments[0]->getValue()).'-')
 157         ));
 158     }
 159
 160     public function translateSelected(XPathExpr $xpath): XPathExpr
 161     {
 162         return $xpath->addCondition("(@selected and name(.) = 'option')");
 163     }
 164
 165     public function translateInvalid(XPathExpr $xpath): XPathExpr
 166     {
 167         return $xpath->addCondition('0');
 168     }
 169
 170     public function translateHover(XPathExpr $xpath): XPathExpr
 171     {
 172         return $xpath->addCondition('0');
 173     }
 174
 175     public function translateVisited(XPathExpr $xpath): XPathExpr
 176     {
 177         return $xpath->addCondition('0');
 178     }
 179
 180     /**
 181      * {@inheritdoc}
 182      */
 183     public function getName(): string
 184     {
 185         return 'html';
 186     }
 187 }