<?php
/*
  This code is part of FusionDirectory (http://www.fusiondirectory.org/)
  Copyright (C) 2003-2010  Cajus Pollmeier
  Copyright (C) 2011-2013  FusionDirectory

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/

/*!
 * \file class_baseSelector.inc
 * Source code for Class Base Selector
 */

/*!
 * \brief Class Base Selector
 */
class baseSelector {

  private $base;
  protected $pid;
  private $action;
  private $height       = 500;
  private $submitButton = TRUE;
  protected $tree;
  protected $pathMapping;
  protected $lastState;

  /*!
   * \brief baseSelector contructor
   *
   * \param Array $bases The Bases
   *
   * \param String $base Empty string
   */
  function __construct($bases, $base = "")
  {
    // Initialize pid
    $this->pid = preg_replace("/[^0-9]/", "", microtime(TRUE));

    // Transfer data
    $this->setBases($bases);
    $this->setBase($base);
  }

  /*!
   * \brief Set a new flag to the submit button
   *
   * \param Boolean $flag Flag for the submit button
   */
  function setSubmitButton($flag)
  {
    $this->submitButton = $flag;
  }

  /*!
   * \brief Set a new value of the member height
   *
   * \param Integer $value The new value of the height
   */
  function setHeight($value)
  {
    $this->height = $value;
  }

  /*!
   * \brief Set a new value of the member base
   *
   * \param String $base The new value of the base
   */
  function setBase($base)
  {
    if (isset($this->pathMapping[$base])) {
      $this->base       = $base;
      $this->lastState  = TRUE;
      return $this->update(TRUE);
    } else {
      $this->lastState = FALSE;
      return FALSE;
    }
  }

  /*!
   * \brief Check the base value
   *
   * \param String $base The base value which will be checked
   *
   * \return boolean
   */
  function checkBase($base)
  {
    return isset($this->pathMapping[$base]);
  }

  /*!
   * \brief Check the last base value updated
   *
   * \return Boolean the last state of the object
   */
  function checkLastBaseUpdate()
  {
    return $this->lastState;
  }

  /*!
   * \brief Set new bases
   *
   * \param Array $bases The new value of the bases
   */
  function setBases($bases)
  {
    global $config;

    $this->pathMapping = array();
    $selected = ($this->base == $config->current['BASE']);

    foreach ($bases as $base => $dummy) {
      // Build path style display
      $elements = explode(',', substr($base, 0, strlen($base) - strlen($config->current['BASE'])));
      $elements = array_reverse($elements, TRUE);

      $this->pathMapping[$base] = ($selected? '/' : ldap::fix(preg_replace('/(^|,)[a-z0-9]+=/i', '/', implode(',', $elements))));
    }

    // Save bases to session for autocompletion
    session::global_set('pathMapping', $this->pathMapping);
  }

  /*!
   * \brief Update the base
   *
   * \param Boolean $force FALSE
   */
  function update($force = FALSE)
  {
    global $config;

    if (!isset($this->base) || ($this->base == "")) {
      $this->lastState = FALSE;
      return FALSE;
    }

    // Analyze for base changes if needed
    $this->action = NULL;
    $last_base    = $this->base;
    if (isset($_REQUEST['BPID']) && $_REQUEST['BPID'] == $this->pid) {
      if (isset($_POST['bs_rebase_'.$this->pid]) && !empty($_POST['bs_rebase_'.$this->pid])) {
        $new_base = base64_decode($_POST['bs_rebase_'.$this->pid]);
        if (isset($this->pathMapping[$new_base])) {
          $this->base   = $new_base;
          $this->action = 'rebase';
        } else {
          $this->lastState = FALSE;
          return FALSE;
        }
      } else {
        // Input field set?
        if (isset($_POST['bs_input_'.$this->pid])) {

          // Take over input field base
          if ($this->submitButton && isset($_POST['submit_base_'.$this->pid.'_x']) || !$this->submitButton) {

            // Check if base is available
            $this->lastState = FALSE;
            foreach ($this->pathMapping as $key => $path) {
              if (mb_strtolower($path) == mb_strtolower($_POST['bs_input_'.$this->pid])) {
                $this->base       = $key;
                $this->lastState  = TRUE;
                break;
              }
            }
          }
        }
      }

    }

    /* Skip if there's no change */
    if ($this->tree && ($this->base == $last_base) && !$force) {
      $this->lastState = TRUE;
      return TRUE;
    }

    $link = "onclick=\"\$('bs_rebase_".$this->pid."').value='".base64_encode($config->current['BASE'])."';  $('submit_tree_base_".$this->pid."').click();\"";
    $this->tree = "<input class='base_selector' type='text' name='bs_input_".$this->pid."' id='bs_input_".$this->pid."' onkeydown=\"\$('bs_".$this->pid."').hide()\" onfocus=\"\$('bs_".$this->pid."').hide()\" onmouseover=\"Element.clonePosition(\$('bs_".$this->pid."'), 'bs_input_".$this->pid."', {setHeight: false, setWidth: false, offsetTop:(Element.getHeight('bs_input_".$this->pid."'))});\$('bs_".$this->pid."').show();\" onmouseout=\"rtimer= Element.hide.delay(0.25, 'bs_".$this->pid."')\" value=\"".preg_replace('/"/', '&quot;', $this->pathMapping[$this->base])."\">";

    // Autocompleter
    $this->tree .= "<div id='autocomplete_".$this->pid."' class='autocomplete'></div>".
                  "<script type='text/javascript'>".
                  "new Ajax.Autocompleter('bs_input_".$this->pid."', 'autocomplete_".$this->pid."', 'autocomplete.php?type=base', { minChars: 3, frequency: 0.5 });";
    if ($this->submitButton) {
      $this->tree .= "$('bs_input_".$this->pid."').observe('keypress', function(event) { if(event.keyCode == Event.KEY_RETURN) { $('submit_base_".$this->pid."').click(); } });";
    }
    $this->tree .= "</script>";

    $selected     = $this->base == $config->current['BASE']?"Selected":"";
    $this->tree   .= "<div class='treeList' style='display:none;max-height:".$this->height."px' id='bs_".$this->pid."' onmouseover=\"window.clearTimeout(rtimer);\" onmouseout=\"rtimer= Element.hide.delay(0.25, 'bs_".$this->pid."')\"><a class='treeList$selected' $link>/&nbsp;["._("Root")."]</a><ul class='treeList'>\n";
    $first        = TRUE;
    $last_indent  = 2;

    foreach ($this->pathMapping as $base => $dummy) {

      // Skip root for tree
      if ($base == $config->current['BASE']) {
        continue;
      }

      // Build path style display
      $elements = explode(',', substr($base, 0, strlen($base) - strlen($config->current['BASE'])));

      $indent = count($elements);
      if (!$first && ($indent == $last_indent)) {
        $this->tree .= "</li>\n";
      }
      if ($indent > $last_indent) {
        $this->tree .= "<ul>\n";
      }
      if ($indent < $last_indent) {
        for ($i = 0; $i < ($last_indent - $indent); $i++) {
          $this->tree .= "</li></ul>\n";
        }
        $this->tree .= "</li>\n";
      }
      $selected   = ($this->base == $base?" class='treeListSelected'":"");
      $link       = "onclick=\"\$('bs_rebase_".$this->pid."').value='".base64_encode($base)."';$('submit_tree_base_".$this->pid."').click();\"";
      $this->tree .= "<li><a$selected $link>".
                    "<img class='center' src='".$config->department_info[$base]['img']."' alt='".$config->department_info[$base]['name']."'/>&nbsp;".
                    $this->gennonbreaks($config->department_info[$base]['name']).
                    ($config->department_info[$base]['description'] == ''?'':'&nbsp;<span class="informal">['.$this->gennonbreaks($config->department_info[$base]['description']).']</span>').
                    "</a>";

      $last_indent  = $indent;
      $first        = FALSE;
    }

    // Close tree
    for ($i = 1; $i < $last_indent; $i++) {
      $this->tree .= "</li></ul>\n";
    }
    $this->tree .= "</div>\n";

    // Draw submitter if required
    if ($this->submitButton) {
      $this->tree .= "&nbsp;<input class='center' type='image' src='images/lists/submit.png' title='"._("Submit")."' name='submit_base_".$this->pid."' id='submit_base_".$this->pid."' alt='"._("Submit")."'>";
    }
    $this->tree .= "<input type='submit' style='display:none' name='submit_tree_base_".$this->pid."' id='submit_tree_base_".$this->pid."'>";
    $this->tree .= "<input type='hidden' name='bs_rebase_".$this->pid."' id='bs_rebase_".$this->pid."'>";
    $this->tree .= "<input type='hidden' name='BPID' id='BPID' value='".$this->pid."'>";

    $this->lastState = TRUE;
    return TRUE;
  }


  /*!
   * \brief Replace all space of the string by non-breaking space
   *
   * \param String $string The string which his space will be replaced
   */
  function gennonbreaks($string)
  {
    return str_replace('-', '&#8209;', str_replace(' ', '&nbsp;', $string));
  }

  /*!
   * \brief Accessor of the member tree
   *
   * \return members tree of the ACL class
   */
  function render()
  {
    return $this->tree;
  }

  /*!
   * \brief Accessor of the base
   *
   * \return String containts the base of the object
   */
  function getBase()
  {
    return $this->base;
  }

  /*!
   * \brief Accessor of the action
   *
   * \return action of the object if exists
   */
  function getAction()
  {
    // Do not do anything if this is not our BPID, or there's even no BPID available...
    if (!isset($_REQUEST['BPID']) || ($_REQUEST['BPID'] != $this->pid)) {
      return;
    }

    if ($this->action) {
      return array("targets" => array($this->base), "action" => $this->action);
    }

    return NULL;
  }
}
?>
