source: plugins/widgets/_public.php @ 2772:df84ff8c6261

<?php
# -- BEGIN LICENSE BLOCK ---------------------------------------
#
# This file is part of Dotclear 2.
#
# Copyright (c) 2003-2013 Olivier Meunier & Association Dotclear
# Licensed under the GPL version 2.0 license.
# See LICENSE file or
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
#
# -- END LICENSE BLOCK -----------------------------------------
if (!defined('DC_RC_PATH')) { return; }

include dirname(__FILE__).'/_default_widgets.php';
require_once dirname(__FILE__).'/_widgets_functions.php';

$core->tpl->addValue('Widgets',array('publicWidgets','tplWidgets'));
$core->tpl->addBlock('Widget',array('publicWidgets','tplWidget'));
$core->tpl->addBlock('IfWidgets',array('publicWidgets','tplIfWidgets'));

class publicWidgets
{
     public static function tplWidgets($attr)
     {
          $type = isset($attr['type']) ? $attr['type'] : '';

          # widgets to disable
          $disable = isset($attr['disable']) ? trim($attr['disable']) : '';

          if ($type == '') {
               $res = "publicWidgets::widgetsHandler('nav','".addslashes($disable)."');"."\n".
                    "   publicWidgets::widgetsHandler('extra','".addslashes($disable)."');"."\n".
                    "   publicWidgets::widgetsHandler('custom','".addslashes($disable)."');"."\n";
          } else {
               if (!in_array($type, array('nav','extra','custom'))) {
                    $type = 'nav';
               }
               $res = "publicWidgets::widgetsHandler('".addslashes($type)."','".addslashes($disable)."');";
          }
          return '<?php '.$res.' ?>';
     }

     public static function widgetsHandler($type,$disable='')
     {
          $wtype = 'widgets_'.$type;
          $GLOBALS['core']->blog->settings->addNameSpace('widgets');
          $widgets = $GLOBALS['core']->blog->settings->widgets->{$wtype};

          if (!$widgets) { // If widgets value is empty, get defaults
               $widgets = self::defaultWidgets($type);
          } else { // Otherwise, load widgets
               $widgets = dcWidgets::load($widgets);
          }

          if ($widgets->isEmpty()) { // Widgets are empty, don't show anything
               return;
          }

          $disable = preg_split('/\s*,\s*/',$disable,-1,PREG_SPLIT_NO_EMPTY);
          $disable = array_flip($disable);

          foreach ($widgets->elements() as $k => $w)
          {
               if (isset($disable[$w->id()])) {
                    continue;
               }
               echo $w->call($k);
          }
     }

     public static function tplIfWidgets($attr,$content)
     {
          $type = isset($attr['type']) ? $attr['type'] : '';

          # widgets to disable
          $disable = isset($attr['disable']) ? trim($attr['disable']) : '';

          if ($type == '') {
               $res = "publicWidgets::ifWidgetsHandler('nav','".addslashes($disable)."') &&"."\n".
                    "   publicWidgets::ifWidgetsHandler('extra','".addslashes($disable)."') &&"."\n".
                    "   publicWidgets::ifWidgetsHandler('custom','".addslashes($disable)."')"."\n";
          } else {
               if (!in_array($type, array('nav','extra','custom'))) {
                    $type = 'nav';
               }
               $res = "publicWidgets::ifWidgetsHandler('".addslashes($type)."','".addslashes($disable)."')";
          }
          return '<?php if('.$res.') : ?>'.$content.'<?php endif; ?>';
     }

     public static function ifWidgetsHandler($type,$disable='')
     {
          $wtype = 'widgets_'.$type;
          $GLOBALS['core']->blog->settings->addNameSpace('widgets');
          $widgets = $GLOBALS['core']->blog->settings->widgets->{$wtype};

          if (!$widgets) { // If widgets value is empty, get defaults
               $widgets = self::defaultWidgets($type);
          } else { // Otherwise, load widgets
               $widgets = dcWidgets::load($widgets);
          }

          return (!$widgets->isEmpty());
     }

     private static function defaultWidgets($type)
     {
          $widgets = new dcWidgets();
          $w = new dcWidgets();

          if (isset($GLOBALS['__default_widgets'][$type])) {
               $w = $GLOBALS['__default_widgets'][$type];
          }

          return $w;
     }

     public static function tplWidget($attr,$content)
     {
          if (!isset($attr['id']) || !($GLOBALS['__widgets']->{$attr['id']} instanceof dcWidget)) {
               return;
          }

          # We change tpl:lang syntax, we need it
          $content = preg_replace('/\{\{tpl:lang\s+(.*?)\}\}/msu','{tpl:lang $1}',$content);

          # We remove every {{tpl:
          $content = preg_replace('/\{\{tpl:.*?\}\}/msu','',$content);

          return
          "<?php publicWidgets::widgetHandler('".addslashes($attr['id'])."','".str_replace("'","\\'",$content)."'); ?>";
     }

     public static function widgetHandler($id,$xml)
     {
          $widgets =& $GLOBALS['__widgets'];

          if (!($widgets->{$id} instanceof dcWidget)) {
               return;
          }

          $xml = '<?xml version="1.0" encoding="utf-8" ?><widget>'.$xml.'</widget>';
          $xml = @simplexml_load_string($xml);
          if (!($xml instanceof SimpleXMLElement)) {
               echo "Invalid widget XML fragment";
               return;
          }

          $w = clone $widgets->{$id};

          foreach ($xml->setting as $e)
          {
               if (empty($e['name'])) {
                    continue;
               }

               $setting = (string) $e['name'];
               if (count($e->children())>0) {
                    $text = preg_replace('#^<setting[^>]*>(.*)</setting>$#msu','\1', (string)$e->asXML());
               } else {
                    $text=$e;
               }
               $w->{$setting} = preg_replace_callback('/\{tpl:lang (.*?)\}/msu',array('self','widgetL10nHandler'),$text);
          }

          echo $w->call(0);
     }

     private static function widgetL10nHandler($m)
     {
          return __($m[1]);
     }
}