<?php (defined('BASEPATH')) OR exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 4.3.2 or newer
 *
 * @package        CodeIgniter
 * @author        ExpressionEngine Dev Team
 * @copyright    Copyright (c) 2006, EllisLab, Inc.
 * @license        http://codeigniter.com/user_guide/license.html
 * @link        http://codeigniter.com
 * @since        Version 1.0
 * @filesource
 */

// ------------------------------------------------------------------------

/**
 * Pagination Class
 *
 * @package        CodeIgniter
 * @subpackage    Libraries
 * @category    Pagination
 * @author        ExpressionEngine Dev Team
 * @link        http://codeigniter.com/user_guide/libraries/pagination.html
 */
class CI_Pagination {

    var $base_url			= ''; // The page we are linking to
    var $total_rows			= ''; // Total number of items (database results)
    var $per_page			= 10; // Max number of items you want shown per page
    var $num_links			= 10; // Number of "digit" links to show before/after the currently viewed page
    var $cur_page			=  1; // The current page being viewed
    var $first_link			= '&lsaquo; First';
    var $next_link			= '>';
    var $prev_link			= '<';
    var $last_link			= 'Last &rsaquo;';
    var $full_tag_open		= '';
    var $full_tag_close		= '';
    var $first_tag_open		= '';
    var $first_tag_close	= '&nbsp;';
    var $last_tag_open		= '&nbsp;';
    var $last_tag_close		= '';
    var $cur_tag_open		= '&nbsp;<b>';
    var $cur_tag_close		= '</b>';
    var $next_tag_open		= '&nbsp;';
    var $next_tag_close		= '&nbsp;';
    var $prev_tag_open		= '&nbsp;';
    var $prev_tag_close		= '';
    var $num_tag_open		= '&nbsp;';
    var $num_tag_close		= '';
    var $first_link_class	= '';
    var $last_link_class	= '';
    var $next_link_class	= '';
    var $prev_link_class	= '';
    var $cur_link_class		= '';
    var $num_link_class		= '';

    /**
     * Constructor
     *
     * @access    public
     * @param    array    initialization parameters
     */
    function CI_Pagination($params = array()) {
	if (count($params) > 0) {
	    $this->initialize($params);
	}

	log_message('debug', "Pagination Class Initialized");
    }

    // --------------------------------------------------------------------

    /**
     * Initialize Preferences
     *
     * @access    public
     * @param    array    initialization parameters
     * @return    void
     */
    function initialize($params = array()) {
	if (count($params) > 0) {
	    foreach ($params as $key => $val) {
		if (isset($this->$key)) {
		    $this->$key = $val;
		}
	    }
	}
    }

    // --------------------------------------------------------------------

    /**
     * Generate the pagination links
     *
     * @access    public
     * @return    string
     */
    function create_links() {
    // If our item count or per-page total is zero there is no need to continue.
	if ($this->total_rows == 0 OR $this->per_page == 0) {
	    return '';
	}

	// Calculate the total number of pages
	$num_pages = ceil($this->total_rows / $this->per_page);

	// Is there only one page? Hm... nothing more to do here then.
	if ($num_pages == 1) {
	    return '';
	}

	// Determine the current page number.
	$CI =& get_instance();

	$this->num_links = (int)$this->num_links;

	if ($this->num_links < 1) {
	    show_error('Your number of links must be a positive number.');
	}

	if ( ! is_numeric($this->cur_page)) {
	    $this->cur_page = 0;
	}

	$uri_page_number = $this->cur_page;
	//$this->cur_page = floor(($this->cur_page/$this->per_page) + 1);
	$this->cur_page = floor($this->cur_page);

	// Calculate the start and end numbers. These determine
	// which number to start and end the digit links with
	$start = (($this->cur_page - $this->num_links) > 0) ? $this->cur_page - ($this->num_links - 1) : 1;
	$end   = (($this->cur_page + $this->num_links) < $num_pages) ? $this->cur_page + $this->num_links : $num_pages;

	// Add a trailing slash to the base URL if needed
	$this->base_url = rtrim($this->base_url, '/') .'/';

	// And here we go...
	$output = '';

	// Render the "First" link
	if  ($this->cur_page > $this->num_links) {
	    //$output .= $this->first_tag_open.'<a href="'.$this->base_url.'" class="'.$this->first_link_class.'">'.$this->first_link.'</a>'.$this->first_tag_close;
		$output .= $this->first_tag_open.'<a href="#" onclick="paging(1)" class="'.$this->first_link_class.'">'.$this->first_link.'</a>'.$this->first_tag_close;
	}

	// Render the "previous" link
	if  ($this->cur_page != 1) {
	    $i = $this->cur_page - 1;
	    if ($i == 0) $i = '';
	    //$output .= $this->prev_tag_open.'<a href="'.$this->base_url.$i.'" class="'.$this->prev_link_class.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
		 $output .= $this->prev_tag_open.'<a href="#" onclick="paging('.$i.')" class="'.$this->prev_link_class.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
	}

	// Write the digit links
	for ($loop = $start -1; $loop <= $end; $loop++) {
	    $i = $loop;

	    if ($i > 0) {
		if ($this->cur_page == $loop) {
		    if ($this->cur_link_class <> '') {

			$output .= $this->cur_tag_open.'<a class="'.$this->cur_link_class.'">'.$loop.'</a>'.$this->cur_tag_close; // Current page

		    }

		    else {

			$output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page

		    }
		}
		else {
		    $n = ($i == 0) ? '' : $i;
		    //$output .= $this->num_tag_open.'<a href="'.$this->base_url.$n.'" class="'.$this->num_link_class.'">'.$loop.'</a>'.$this->num_tag_close;
			$output .= $this->num_tag_open.'<a href="#" onclick="paging('.$n.')" class="'.$this->num_link_class.'">'.$loop.'</a>'.$this->num_tag_close;
		}
	    }
	}

	// Render the "next" link
	if ($this->cur_page < $num_pages) {
	   // $output .= $this->next_tag_open.'<a href="'.$this->base_url.($this->cur_page + 1).'" class="'.$this->next_link_class.'">'.$this->next_link.'</a>'.$this->next_tag_close;
		 $output .= $this->next_tag_open.'<a onclick="paging('.($this->cur_page + 1).')" href="#" class="'.$this->next_link_class.'">'.$this->next_link.'</a>'.$this->next_tag_close;
	}

	// Render the "Last" link
	if (($this->cur_page + $this->num_links) < $num_pages) {
	    $i = $num_pages;
	   // $output .= $this->last_tag_open.'<a href="'.$this->base_url.$i.'" class="'.$this->last_link_class.'">'.$this->last_link.'</a>'.$this->last_tag_close;
	   $output .= $this->last_tag_open.'<a onclick="paging('.$i.')" href="#" class="'.$this->last_link_class.'">'.$this->last_link.'</a>'.$this->last_tag_close;
	}

	// Kill double slashes.  Note: Sometimes we can end up with a double slash
	// in the penultimate link so we'll kill all double slashes.
	$output = preg_replace("#([^:])//+#", "\\1/", $output);

	// Add the wrapper HTML if exists
	$output = $this->full_tag_open.$output.$this->full_tag_close;

	return $output;
    }
}
// END Pagination Class
?>