1: <?php
  2: /**
  3:  * user select with page navigation
  4:  *
  5:  * limit: Only work with javascript enabled
  6:  *
  7:  * You may not change or alter any portion of this comment or credits
  8:  * of supporting developers from this source code or any supporting source code
  9:  * which is considered copyrighted (c) material of the original comment or credit authors.
 10:  * This program is distributed in the hope that it will be useful,
 11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 12:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 13:  *
 14:  * @copyright       The XOOPS Project (http://xoops.org)
 15:  * @license         GNU GPL 2 (http://www.gnu.org/licenses/gpl-2.0.html)
 16:  * @package         kernel
 17:  * @subpackage      form
 18:  * @since           2.0.0
 19:  * @author          Taiwen Jiang <phppp@users.sourceforge.net>
 20:  */
 21: defined('XOOPS_ROOT_PATH') || exit('Restricted access');
 22: 
 23: xoops_load('XoopsFormElementTray');
 24: xoops_load('XoopsFormSelect');
 25: 
 26: /**
 27:  * User Select field
 28:  */
 29: class XoopsFormSelectUser extends XoopsFormElementTray
 30: {
 31:     /**
 32:      * Constructor
 33:      *
 34:      * @param string $caption          form element caption
 35:      * @param string $name             form element name
 36:      * @param bool   $includeAnonymous Include user "anonymous"?
 37:      * @param mixed  $value            Pre-selected value (or array of them).
 38:      *                                 For an item with massive members, such as "Registered Users", "$value"
 39:      *                                 should be used to store selected temporary users only instead of all
 40:      *                                 members of that item
 41:      * @param int    $size             Number or rows. "1" makes a drop-down-list.
 42:      * @param bool   $multiple         Allow multiple selections?
 43:      */
 44:     public function __construct($caption, $name, $includeAnonymous = false, $value = null, $size = 1, $multiple = false)
 45:     {
 46:         /**
 47:          * @var mixed array|false - cache any result for this session.
 48:          *            Some modules use multiple copies of this element on a single page, so this call will
 49:          *            be made multiple times. This is only used when $value is null.
 50:          * @todo this should be replaced with better interface, with autocomplete style search
 51:          * and user specific MRU cache
 52:          */
 53:         static $queryCache = false;
 54: 
 55:         /**
 56:          * @var int - limit to this many rows
 57:          */
 58:         $limit = 200;
 59: 
 60:         /**
 61:          * @var string - cache time to live - will be interpreted by strtotime()
 62:          */
 63:         $cachettl = '+5 minutes';
 64: 
 65:         /**
 66:          * @var string - cache key
 67:          */
 68:         $cachekey = 'formselectuser';
 69: 
 70:         $select_element = new XoopsFormSelect('', $name, $value, $size, $multiple);
 71:         if ($includeAnonymous) {
 72:             $select_element->addOption(0, $GLOBALS['xoopsConfig']['anonymous']);
 73:         }
 74:         /* @var $member_handler XoopsMemberHandler */
 75:         $member_handler = xoops_getHandler('member');
 76:         $value          = is_array($value) ? $value : (empty($value) ? array() : array($value));
 77:         $selectedUsers = array();
 78:         if (count($value) > 0) {
 79:             // fetch the set of uids in $value
 80:             $criteria = new Criteria('uid', '(' . implode(',', $value) . ')', 'IN');
 81:             $criteria->setSort('uname');
 82:             $criteria->setOrder('ASC');
 83:             $selectedUsers = $member_handler->getUserList($criteria);
 84:         }
 85: 
 86:         // get the full selection list
 87:         // we will always cache this version to reduce expense
 88:         if (empty($queryCache)) {
 89:             XoopsLoad::load('XoopsCache');
 90:             $queryCache = XoopsCache::read($cachekey);
 91:             if ($queryCache === false) {
 92:                 $criteria = new CriteriaCompo();
 93:                 if ($limit <= $member_handler->getUserCount()) {
 94:                     // if we have more than $limit users, we will select who to show based on last_login
 95:                     $criteria->setLimit($limit);
 96:                     $criteria->setSort('last_login');
 97:                     $criteria->setOrder('DESC');
 98:                 } else {
 99:                     $criteria->setSort('uname');
100:                     $criteria->setOrder('ASC');
101:                 }
102:                 $queryCache = $member_handler->getUserList($criteria);
103:                 asort($queryCache);
104:                 XoopsCache::write($cachekey, $queryCache, $cachettl); // won't do anything different if write fails
105:             }
106:         }
107: 
108:         // merge with selected
109:         $users = $selectedUsers + $queryCache;
110: 
111:         $select_element->addOptionArray($users);
112:         if ($limit > count($users)) {
113:             parent::__construct($caption, '', $name);
114:             $this->addElement($select_element);
115: 
116:             return null;
117:         }
118: 
119:         xoops_loadLanguage('findusers');
120:         $js_addusers = "
121:             function addusers(opts)
122:             {
123:                 var num = opts.substring(0, opts.indexOf(':'));
124:                 opts = opts.substring(opts.indexOf(':')+1, opts.length);
125:                 var sel = xoopsGetElementById('" . $name . "');
126:                 var arr = new Array(num);
127:                 for (var n=0; n < num; n++) {
128:                     var nm = opts.substring(0, opts.indexOf(':'));
129:                     opts = opts.substring(opts.indexOf(':')+1, opts.length);
130:                     var val = opts.substring(0, opts.indexOf(':'));
131:                     opts = opts.substring(opts.indexOf(':')+1, opts.length);
132:                     var txt = opts.substring(0, nm - val.length);
133:                     opts = opts.substring(nm - val.length, opts.length);
134:                     var added = false;
135:                     for (var k = 0; k < sel.options.length; k++) {
136:                         if (sel.options[k].value == val) {
137:                             added = true;
138:                             break;
139:                         }
140:                     }
141:                     if (added == false) {
142:                         sel.options[k] = new Option(txt, val);
143:                         sel.options[k].selected = true;
144:                     }
145:                 }
146: 
147:                 return true;
148:             }";
149:         $token       = $GLOBALS['xoopsSecurity']->createToken();
150:         $action_tray = new XoopsFormElementTray('', '');
151:         $removeUsers = new XoopsFormButton('', 'rmvusr_' . $name, _MA_USER_REMOVE, 'button');
152:         $removeUsers->setExtra(' onclick="var sel = xoopsGetElementById(\'' . $name . '\');for (var i = sel.options.length-1; i >= 0; i--) {if (!sel.options[i].selected) {sel.options[i] = null;}}; return false;" ');
153:         $action_tray->addElement($removeUsers);
154: 
155:         $searchUsers = new XoopsFormButton('', 'srchusr_' . $name, _MA_USER_MORE, 'button');
156:         $searchUsers->setExtra(' onclick="openWithSelfMain(\'' . XOOPS_URL . '/include/findusers.php?target=' . $name . '&amp;multiple=' . $multiple . '&amp;token=' . $token . '\', \'userselect\', 800, 600, null); return false;" ');
157:         $action_tray->addElement($searchUsers);
158: 
159:          if (isset($GLOBALS['xoTheme']) && is_object($GLOBALS['xoTheme'])) {
160:              $GLOBALS['xoTheme']->addScript('', array(), $js_addusers);
161:          } else {
162:              echo '<script>' . $js_addusers . '</script>';
163:          }
164:         parent::__construct($caption, '', $name);
165:         $this->addElement($select_element);
166:         $this->addElement($action_tray);
167:     }
168: }
169: