[Sommaire] [Imprimer]

   1  <?php
   2  
   3  require_once 'Horde/IMAP/Thread.php';
   4  
   5  /**
   6   * The IMP_Thread class extends the IMAP_Thread class to include a function
   7   * to generate the thread tree images.  This class is necessary to ensure
   8   * backwards compatibility with Horde 3.0.
   9   *
  10   * For the next (mythical) release of Horde 4.x, this code should be merged
  11   * into the IMAP_Thread class.
  12   *
  13   * $Horde: imp/lib/IMAP/Thread.php,v 1.5.2.3 2007/01/02 13:54:58 jan Exp $
  14   *
  15   * Copyright 2005-2007 Michael Slusarz <slusarz@curecanti.org>
  16   *
  17   * See the enclosed file COPYING for license information (GPL). If you
  18   * did not receive this file, see http://www.fsf.org/copyleft/gpl.html.
  19   *
  20   * @author  Michael Slusarz <slusarz@curecanti.org>
  21   * @since   IMP 4.1
  22   * @package IMP
  23   */
  24  class IMP_Thread extends IMAP_Thread {
  25  
  26      /**
  27       * Cached value of the Horde graphics directory.
  28       *
  29       * @var string
  30       */
  31      var $_graphicsdir;
  32  
  33      /**
  34       * Cached values of the thread image objects.
  35       *
  36       * @var string
  37       */
  38      var $_imgcache = array();
  39  
  40      /**
  41       * Generate the thread representation image for the given index list.
  42       *
  43       * @param array $indices    The list of indices to create a tree for.
  44       * @param boolean $sortdir  True for newest first, false for oldest first.
  45       *
  46       * @return array  An array with the index as the key and the thread image
  47       *                representation as the value.
  48       */
  49      function getThreadImageTree($indices, $sortdir)
  50      {
  51          $container = $last_level = $last_thread = null;
  52          $tree = array();
  53  
  54          if ($sortdir) {
  55              $indices = array_reverse($indices);
  56          }
  57  
  58          foreach ($indices as $val) {
  59              $tree[$val] = '';
  60  
  61              $indentBase = $this->getThreadBase($val);
  62              if (empty($indentBase)) {
  63                  continue;
  64              }
  65  
  66              $lines = '';
  67              $indentLevel = $this->getThreadIndent($val);
  68              $lastinlevel = $this->lastInLevel($val);
  69  
  70              if ($lastinlevel && ($indentBase == $val)) {
  71                  continue;
  72              }
  73  
  74              if ($lastinlevel) {
  75                  $join_img = ($sortdir) ? 'joinbottom-down.png' : 'joinbottom.png';
  76              } elseif (($indentLevel == 1) && ($indentBase == $val)) {
  77                  $join_img = ($sortdir) ? 'joinbottom.png' : 'joinbottom-down.png';
  78                  $container = $val;
  79              } else {
  80                  $join_img = 'join.png';
  81              }
  82              $threadLevel[$indentLevel] = $lastinlevel;
  83              for ($i = ($container == $indentBase) ? 1 : 2; $i < $indentLevel; $i++) {
  84                  $lines .= $this->_image(!isset($threadLevel[$i]) || ($threadLevel[$i]) ? 'blank.png' : 'line.png');
  85              }
  86              $tree[$val] = $lines . $this->_image($join_img);
  87          }
  88  
  89          return $tree;
  90      }
  91  
  92      /**
  93       * Utility function to return a url for the various thread images.
  94       *
  95       * @access private
  96       *
  97       * @param string $name  Image filename.
  98       *
  99       * @return string  Link to the folder image.
 100       */
 101      function _image($name)
 102      {
 103          if (!empty($this->_imgcache[$name])) {
 104              return $this->_imgcache[$name];
 105          }
 106  
 107          if (empty($this->_graphicsdir)) {
 108              $this->_graphicsdir = $GLOBALS['registry']->getImageDir('horde');
 109          }
 110  
 111          $this->_imgcache[$name] = Horde::img('tree/' . $name, '', 'style="vertical-align:middle"', $this->_graphicsdir);
 112  
 113          return $this->_imgcache[$name];
 114      }
 115  
 116  }