PageHandler.class.php

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<?php
/* Copyright (C) NAVER <http://www.navercorp.com> */

class PageHandler extends Handler
{

    var $total_count = 0; 
    var $total_page = 0; 
    var $cur_page = 0; 
    var $page_count = 10; 
    var $first_page = 1; 
    var $last_page = 1; 
    var $point = 0; 

    function __construct($total_count, $total_page, $cur_page, $page_count = 10)
    {
        $this->total_count = $total_count;
        $this->total_page = $total_page;
        $this->cur_page = $cur_page;
        $this->page_count = $page_count;
        $this->point = 0;

        $first_page = $cur_page - (int) ($page_count / 2);
        if($first_page < 1)
        {
            $first_page = 1;
        }

        if($total_page > $page_count && $first_page + $page_count - 1 > $total_page)
        {
            $first_page -= $first_page + $page_count - 1 - $total_page;
        }

        $last_page = $total_page;
        if($last_page > $total_page)
        {
            $last_page = $total_page;
        }

        $this->first_page = $first_page;
        $this->last_page = $last_page;

        if($total_page < $this->page_count)
        {
            $this->page_count = $total_page;
        }
    }

    function getNextPage()
    {
        $page = $this->first_page + $this->point++;
        if($this->point > $this->page_count || $page > $this->last_page)
        {
            $page = 0;
        }
        return $page;
    }

    function getPage($offset)
    {
        return max(min($this->cur_page + $offset, $this->total_page), '');
    }

}
/* End of file PageHandler.class.php */
/* Location: ./classes/page/PageHandler.class.php */