include/Text/Wiki/Render/Xhtml/Url.php

   1 <?php
   2
   3
   4 class Text_Wiki_Render_Xhtml_Url extends Text_Wiki_Render {
   5
   6
   7     var $conf = array(
   8         'target' => '_blank',
   9         'images' => true,
  10         'img_ext' => array('jpg', 'jpeg', 'gif', 'png'),
  11         'css_inline' => null,
  12         'css_footnote' => null,
  13         'css_descr' => null,
  14         'css_img' => null
  15     );
  16
  17     /**
  18     *
  19     * Renders a token into text matching the requested format.
  20     *
  21     * @access public
  22     *
  23     * @param array $options The "options" portion of the token (second
  24     * element).
  25     *
  26     * @return string The text rendered from the token options.
  27     *
  28     */
  29
  30     function token($options)
  31     {
  32         // create local variables from the options array (text,
  33         // href, type)
  34         extract($options);
  35
  36         // find the rightmost dot and determine the filename
  37         // extension.
  38         $pos = strrpos($href, '.');
  39         $ext = strtolower(substr($href, $pos + 1));
  40         $href = htmlspecialchars($href);
  41
  42         // does the filename extension indicate an image file?
  43         if ($this->getConf('images') &&
  44             in_array($ext, $this->getConf('img_ext', array()))) {
  45
  46             // create alt text for the image
  47             if (! isset($text) || $text == '') {
  48                 $text = basename($href);
  49                 $text = htmlspecialchars($text);
  50             }
  51
  52             // generate an image tag
  53             $css = $this->formatConf(' class="%s"', 'css_img');
  54             $output = "<img$css src=\"$href\" alt=\"$text\" />";
  55
  56         } else {
  57
  58             // should we build a target clause?
  59             if ($href{0} == '#' ||
  60                 strtolower(substr($href, 0, 7)) == 'mailto:') {
  61                 // targets not allowed for on-page anchors
  62                 // and mailto: links.
  63                 $target = '';
  64             } else {
  65                                 // allow targets on non-anchor non-mailto links
  66                 $target = $this->getConf('target');
  67             }
  68
  69             // generate a regular link (not an image)
  70             $text = htmlspecialchars($text);
  71             $css = $this->formatConf(' class="%s"', "css_$type");
  72             $output = "<a$css href=\"$href\"";
  73
  74             if ($target) {
  75                 // use a "popup" window.  this is XHTML compliant, suggested by
  76                 // Aaron Kalin.  uses the $target as the new window name.
  77                 $target = htmlspecialchars($target);
  78                 $output .= " onclick=\"window.open(this.href, '$target');";
  79                 $output .= " return false;\"";
  80             }
  81
  82             // finish up output
  83             $output .= ">$text</a>";
  84
  85             // make numbered references look like footnotes when no
  86             // CSS class specified, make them superscript by default
  87             if ($type == 'footnote' && ! $css) {
  88                 $output = '<sup>' . $output . '</sup>';
  89             }
  90         }
  91
  92         return $output;
  93     }
  94 }
  95 ?>