1 <?php

     2 /**

     3  * Zend Framework

     4  *

     5  * LICENSE

     6  *

     7  * This source file is subject to the new BSD license that is bundled

     8  * with this package in the file LICENSE.txt.

     9  * It is also available through the world-wide-web at this URL:

    10  * http://framework.zend.com/license/new-bsd

    11  * If you did not receive a copy of the license and are unable to

    12  * obtain it through the world-wide-web, please send an email

    13  * to license@zend.com so we can send you a copy immediately.

    14  *

    15  * @category   Zend

    16  * @package    Zend_Paginator

    17  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    18  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    19  * @version    $Id: Elastic.php 20096 2010-01-06 02:05:09Z bkarwin $

    20  */

    21 

    22 /**

    23  * @see Zend_Paginator_ScrollingStyle_Sliding

    24  */

    25 require_once 'Zend/Paginator/ScrollingStyle/Sliding.php';

    26 

    27 /**

    28  * A Google-like scrolling style.  Incrementally expands the range to about

    29  * twice the given page range, then behaves like a slider.  See the example

    30  * link.

    31  *

    32  * @link       http://www.google.com/search?q=Zend+Framework

    33  * @category   Zend

    34  * @package    Zend_Paginator

    35  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    36  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    37  */

    38 class Zend_Paginator_ScrollingStyle_Elastic extends Zend_Paginator_ScrollingStyle_Sliding

    39 {

    40     /**

    41      * Returns an array of "local" pages given a page number and range.

    42      *

    43      * @param  Zend_Paginator $paginator

    44      * @param  integer $pageRange Unused

    45      * @return array

    46      */

    47     public function getPages(Zend_Paginator $paginator, $pageRange = null)

    48     {

    49         $pageRange  = $paginator->getPageRange();

    50         $pageNumber = $paginator->getCurrentPageNumber();

    51 

    52         $originalPageRange = $pageRange;

    53         $pageRange         = $pageRange * 2 - 1;

    54 

    55         if ($originalPageRange + $pageNumber - 1 < $pageRange) {

    56             $pageRange = $originalPageRange + $pageNumber - 1;

    57         } else if ($originalPageRange + $pageNumber - 1 > count($paginator)) {

    58             $pageRange = $originalPageRange + count($paginator) - $pageNumber;

    59         }

    60 

    61         return parent::getPages($paginator, $pageRange);

    62     }

    63 }