interface/modules/zend_modules/library/Zend/Paginator/ScrollingStyle/Elastic.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Paginator\ScrollingStyle;
  11
  12 use Zend\Paginator\Paginator;
  13
  14 /**
  15  * A Google-like scrolling style.  Incrementally expands the range to about
  16  * twice the given page range, then behaves like a slider.  See the example
  17  * link.
  18  *
  19  * @link       http://www.google.com/search?q=Zend+Framework
  20  */
  21 class Elastic extends Sliding
  22 {
  23     /**
  24      * Returns an array of "local" pages given a page number and range.
  25      *
  26      * @param  Paginator $paginator
  27      * @param  int $pageRange Unused
  28      * @return array
  29      */
  30     public function getPages(Paginator $paginator, $pageRange = null)
  31     {
  32         $pageRange  = $paginator->getPageRange();
  33         $pageNumber = $paginator->getCurrentPageNumber();
  34
  35         $originalPageRange = $pageRange;
  36         $pageRange         = $pageRange * 2 - 1;
  37
  38         if ($originalPageRange + $pageNumber - 1 < $pageRange) {
  39             $pageRange = $originalPageRange + $pageNumber - 1;
  40         } elseif ($originalPageRange + $pageNumber - 1 > count($paginator)) {
  41             $pageRange = $originalPageRange + count($paginator) - $pageNumber;
  42         }
  43
  44         return parent::getPages($paginator, $pageRange);
  45     }
  46 }