<?php
/*
Plugin Name: WP-PageNavi
Plugin URI: http://wordpress.org/extend/plugins/wp-pagenavi/
Description: Adds a more advanced paging navigation to your WordPress blog.
Version: 2.61
Author: Lester 'GaMerZ' Chan
Author URI: http://lesterchan.net
 * cleaned for strict validation by itx *
*/


/*
	Copyright 2009  Lester Chan  (email : lesterchan@gmail.com)

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/


### Function: Page Navigation: Boxed Style Paging
function wp_pagenavi($before = '', $after = '') {
	global $wpdb, $wp_query;

	if (is_single())
		return;

		$pagenavi_options = array();
	$pagenavi_options['pages_text'] = __('Page %CURRENT_PAGE% of %TOTAL_PAGES%');
	$pagenavi_options['current_text'] = '%PAGE_NUMBER%';
	$pagenavi_options['page_text'] = '%PAGE_NUMBER%';
	$pagenavi_options['first_text'] = __('&laquo; First');
	$pagenavi_options['last_text'] = __('Last &raquo;');
	$pagenavi_options['next_text'] = __('&raquo;');
	$pagenavi_options['prev_text'] = __('&laquo;');
	$pagenavi_options['dotright_text'] = __('...');
	$pagenavi_options['dotleft_text'] = __('...');
	$pagenavi_options['style'] = 1;
	$pagenavi_options['num_pages'] = 5;
	$pagenavi_options['always_show'] = 0;

	$request = $wp_query->request;
	$posts_per_page = intval(get_query_var('posts_per_page'));
	$paged = intval(get_query_var('paged'));
	$numposts = $wp_query->found_posts;
	$max_page = intval($wp_query->max_num_pages);

	if (empty($paged) || $paged == 0)
		$paged = 1;

	$pages_to_show = intval($pagenavi_options['num_pages']);
	$larger_page_to_show = 0;
	$larger_page_multiple = 0;
	$pages_to_show_minus_1 = $pages_to_show - 1;
	$half_page_start = floor($pages_to_show_minus_1/2);
	$half_page_end = ceil($pages_to_show_minus_1/2);
	$start_page = $paged - $half_page_start;

	if ($start_page <= 0)
		$start_page = 1;

	$end_page = $paged + $half_page_end;
	if (($end_page - $start_page) != $pages_to_show_minus_1) {
		$end_page = $start_page + $pages_to_show_minus_1;
	}

	if ($end_page > $max_page) {
		$start_page = $max_page - $pages_to_show_minus_1;
		$end_page = $max_page;
	}

	if ($start_page <= 0)
		$start_page = 1;

	$larger_pages_array = array();
	if ( $larger_page_multiple )
		for ( $i = $larger_page_multiple; $i <= $max_page; $i += $larger_page_multiple )
			$larger_pages_array[] = $i;

	if ($max_page > 1 || intval($pagenavi_options['always_show'])) {
		$pages_text = str_replace("%CURRENT_PAGE%", number_format_i18n($paged), $pagenavi_options['pages_text']);
		$pages_text = str_replace("%TOTAL_PAGES%", number_format_i18n($max_page), $pages_text);
		echo $before.'<div class="wp-pagenavi">'."\n";
		switch(intval($pagenavi_options['style'])) {
			// Normal
			case 1:
				if (!empty($pages_text)) {
					echo '<span class="pages">'.$pages_text.'</span>';
				}
				if ($start_page >= 2 && $pages_to_show < $max_page) {
					$first_page_text = str_replace("%TOTAL_PAGES%", number_format_i18n($max_page), $pagenavi_options['first_text']);
					echo '<a href="'.esc_url(get_pagenum_link()).'" class="first" title="'.$first_page_text.'">'.$first_page_text.'</a>';
					if (!empty($pagenavi_options['dotleft_text'])) {
						echo '<span class="extend">'.$pagenavi_options['dotleft_text'].'</span>';
					}
				}
				$larger_page_start = 0;
				foreach($larger_pages_array as $larger_page) {
					if ($larger_page < $start_page && $larger_page_start < $larger_page_to_show) {
						$page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($larger_page), $pagenavi_options['page_text']);
						echo '<a href="'.esc_url(get_pagenum_link($larger_page)).'" class="page" title="'.$page_text.'">'.$page_text.'</a>';
						$larger_page_start++;
					}
				}
				previous_posts_link($pagenavi_options['prev_text']);
				for($i = $start_page; $i  <= $end_page; $i++) {
					if ($i == $paged) {
						$current_page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['current_text']);
						echo '<span class="current">'.$current_page_text.'</span>';
					} else {
						$page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['page_text']);
						echo '<a href="'.esc_url(get_pagenum_link($i)).'" class="page" title="'.$page_text.'">'.$page_text.'</a>';
					}
				}
				next_posts_link($pagenavi_options['next_text'], $max_page);
				$larger_page_end = 0;
				foreach($larger_pages_array as $larger_page) {
					if ($larger_page > $end_page && $larger_page_end < $larger_page_to_show) {
						$page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($larger_page), $pagenavi_options['page_text']);
						echo '<a href="'.esc_url(get_pagenum_link($larger_page)).'" class="page" title="'.$page_text.'">'.$page_text.'</a>';
						$larger_page_end++;
					}
				}
				if ($end_page < $max_page) {
					if (!empty($pagenavi_options['dotright_text'])) {
						echo '<span class="extend">'.$pagenavi_options['dotright_text'].'</span>';
					}
					$last_page_text = str_replace("%TOTAL_PAGES%", number_format_i18n($max_page), $pagenavi_options['last_text']);
					echo '<a href="'.esc_url(get_pagenum_link($max_page)).'" class="last" title="'.$last_page_text.'">'.$last_page_text.'</a>';
				}
				break;
			// Dropdown
			case 2;
				echo '<form action="'.htmlspecialchars($_SERVER['PHP_SELF']).'" method="get">'."\n";
				echo '<select size="1" onchange="document.location.href = this.options[this.selectedIndex].value;">'."\n";
				for($i = 1; $i  <= $max_page; $i++) {
					$page_num = $i;
					if ($page_num == 1) {
						$page_num = 0;
					}
					if ($i == $paged) {
						$current_page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['current_text']);
						echo '<option value="'.esc_url(get_pagenum_link($page_num)).'" selected="selected" class="current">'.$current_page_text."</option>\n";
					} else {
						$page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['page_text']);
						echo '<option value="'.esc_url(get_pagenum_link($page_num)).'">'.$page_text."</option>\n";
					}
				}
				echo "</select>\n";
				echo "</form>\n";
				break;
		}
		echo '</div>'.$after;
	}
}
?>