XHTMLCompiler/DOMFilter/AbsolutePath.php

   1 <?php
   2
   3 /**
   4  * Implements the xc:absolute attribute, which allows links to be made
   5  * relative to the XHTML Compiler configured document root (and not
   6  * the absolute web root.) This greatly simplifies inter-directory linking
   7  * and styling.
   8  */
   9 class XHTMLCompiler_DOMFilter_AbsolutePath extends XHTMLCompiler_DOMFilter
  10 {
  11
  12     protected $name = 'AbsolutePath';
  13     protected $xcAttr = array('absolute');
  14
  15     public function process(DOMDocument $dom, $page, $manager) {
  16
  17         // this is the absolute path implementation of the functionality
  18         $xc = XHTMLCompiler::getInstance();
  19         $prefix = $xc->getConf('web_path') . '/';
  20
  21         // this is the relative path implementation of the functionality
  22         //$prefix = str_repeat('../', $page->getDepth());
  23
  24         $nodes = $this->query("//*[@xc:absolute]");
  25         if ($nodes) $manager->addDependency(__FILE__);
  26
  27         foreach ($nodes as $node) {
  28             $attribute = $this->confiscateAttr($node, $this->ns, 'absolute');
  29             if ($attribute) {
  30                 // $attribute is the name of the attribute to convert
  31                 // to absolute form, we can extend the syntax to allow
  32                 // multiple attributes.
  33                 $uri = $node->getAttribute($attribute);
  34                 // special cases
  35                 if ($uri == '.' && $prefix) $uri = '';
  36                 $node->setAttribute($attribute, $prefix . $uri);
  37             }
  38         }
  39
  40     }
  41
  42 }