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mobile/source/ext/phptal/PHPTAL/Dom/XmlnsState.php 2.96 KB
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  <?php
  /**
   * PHPTAL templating engine
   *
   * PHP Version 5
   *
   * @category HTML
   * @package  PHPTAL
   * @author   Laurent Bedubourg <lbedubourg@motion-twin.com>
   * @author   Kornel LesiƄski <kornel@aardvarkmedia.co.uk>
   * @license  http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License
   * @version  SVN: $Id: XmlnsState.php 605 2009-05-03 02:50:26Z kornel $
   * @link     http://phptal.org/
   */
  /**
   * Stores XMLNS aliases fluctuation in the xml flow.
   *
   * This class is used to bind a PHPTAL namespace to an alias, for example using
   * xmlns:t="http://xml.zope.org/namespaces/tal" and later use t:repeat instead
   * of tal:repeat.
   *
   * @package PHPTAL
   * @subpackage Dom
   * @author Laurent Bedubourg <lbedubourg@motion-twin.com>
   */
  class PHPTAL_Dom_XmlnsState
  {
      /** Create a new XMLNS state inheriting provided aliases. */
      public function __construct(array $prefix_to_uri, $current_default)
      {
          $this->prefix_to_uri = $prefix_to_uri;
          $this->current_default = $current_default;
      }
  
      public function prefixToNamespaceURI($prefix)
      {
          if ($prefix === 'xmlns') return 'http://www.w3.org/2000/xmlns/';
          if ($prefix === 'xml') return 'http://www.w3.org/XML/1998/namespace';
  
          // domdefs provides fallback for all known phptal ns
          if (isset($this->prefix_to_uri[$prefix])) {
              return $this->prefix_to_uri[$prefix];
          } else {
              return PHPTAL_Dom_Defs::getInstance()->prefixToNamespaceURI($prefix);
          }
      }
  
      /** Returns true if $attName is a valid attribute name, false otherwise. */
      public function isValidAttributeNS($namespace_uri, $local_name)
      {
          return PHPTAL_Dom_Defs::getInstance()->isValidAttributeNS($namespace_uri, $local_name);
      }
  
      public function isHandledNamespace($namespace_uri)
      {
          return PHPTAL_Dom_Defs::getInstance()->isHandledNamespace($namespace_uri);
      }
  
      /**
       * Returns a new XmlnsState inheriting of $this if $nodeAttributes contains
       * xmlns attributes, returns $this otherwise.
       *
       * This method is used by the PHPTAL parser to keep track of xmlns fluctuation for
       * each encountered node.
       */
      public function newElement(array $nodeAttributes)
      {
          $prefix_to_uri = $this->prefix_to_uri;
          $current_default = $this->current_default;
  
          $changed = false;
          foreach ($nodeAttributes as $qname => $value) {
              if (preg_match('/^xmlns:(.+)$/', $qname, $m)) {
                  $changed = true;
                  list(,$prefix) = $m;
                  $prefix_to_uri[$prefix] = $value;
              }
  
              if ($qname == 'xmlns') {$changed=true;$current_default = $value;}
          }
  
          if ($changed) {
              return new PHPTAL_Dom_XmlnsState($prefix_to_uri, $current_default);
          } else {
              return $this;
          }
      }
  
      function getCurrentDefaultNamespaceURI()
      {
          return $this->current_default;
      }
  
      private $prefix_to_uri, $current_default;
  }