source: plugins/cinecturlink2/inc/lib.cinecturlink2.context.php @ 3247

<?php
# -- BEGIN LICENSE BLOCK ----------------------------------
#
# This file is part of cinecturlink2, a plugin for Dotclear 2.
# 
# Copyright (c) 2009-2013 Jean-Christian Denis and contributors
# contact@jcdenis.fr http://jcd.lv
# 
# Licensed under the GPL version 2.0 license.
# A copy of this license is available in LICENSE file or at
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
#
# -- END LICENSE BLOCK ------------------------------------

class cinecturlink2Context
{
     public static function PaginationNbPages()
     {
          global $_ctx;

          if ($_ctx->c2_pagination === null) {

               return false;
          }

          $nb_posts = $_ctx->c2_pagination->f(0);
          $nb_per_page = $_ctx->c2_params['limit'][1];

          $nb_pages = ceil($nb_posts/$nb_per_page);

          return $nb_pages;
     }

     public static function PaginationPosition($offset=0)
     {
          if (isset($GLOBALS['c2_page_number'])) {
               $p = $GLOBALS['c2_page_number'];
          }
          else {
               $p = 1;
          }

          $p = $p+$offset;

          $n = self::PaginationNbPages();
          if (!$n) {

               return $p;
          }

          return $p > $n || $p <= 0 ? 1 : $p;
     }

     public static function PaginationStart()
     {
          if (isset($GLOBALS['c2_page_number'])) {

               return self::PaginationPosition() == 1;
          }

          return true;
     }
     
     public static function PaginationEnd()
     {    
          if (isset($GLOBALS['c2_page_number'])) {

               return self::PaginationPosition() == self::PaginationNbPages();
          }

          return false;
     }
     
     public static function PaginationURL($offset=0)
     {
          $args = $_SERVER['URL_REQUEST_PART'];

          $n = self::PaginationPosition($offset);

          $args = preg_replace('#(^|/)c2page/([0-9]+)$#', '', $args);

          $url = $GLOBALS['core']->blog->url.$args;

          if ($n > 1) {
               $url = preg_replace('#/$#','',$url);
               $url .= '/c2page/'.$n;
          }

          # If search param
          if (!empty($_GET['q'])) {
               $s = strpos($url,'?') !== false ? '&amp;' : '?';
               $url .= $s.'q='.rawurlencode($_GET['q']);
          }

          return $url;
     }

     public static function categoryCurrent()
     {
          global $_ctx;

          if (!isset($_ctx->c2_page_params['cat_id']) && !isset($_ctx->c2_page_params['cat_title'])) {

               return false;
          }
          if (isset($_ctx->c2_page_params['cat_id']) && $_ctx->c2_page_params['cat_id'] == $_ctx->c2_categories->cat_id) {

               return true;
          }
          if (isset($_ctx->c2_page_params['cat_title']) && $_ctx->c2_page_params['cat_title'] == $_ctx->c2_categories->cat_title) {

               return true;
          }

          return false;
     }
}