<?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

*/





/*  

	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

*/





### Create Text Domain For Translations

add_action('init', 'pagenavi_textdomain');

function pagenavi_textdomain() {

	load_plugin_textdomain('wp-pagenavi', false, 'wp-pagenavi');

}





### Function: Page Navigation Option Menu

add_action('admin_menu', 'pagenavi_menu');

function pagenavi_menu() {

	//add_options_page(__('PageNavi', 'wp-pagenavi'), __('PageNavi', 'wp-pagenavi'), 'manage_options', 'wp-pagenavi/pagenavi-options.php') ;

}



### Function: Enqueue PageNavi Stylesheets

add_action('wp_print_styles', 'pagenavi_stylesheets');

function pagenavi_stylesheets() {

	$pagenavi_options = get_option('pagenavi_options');



	if ( isset($pagenavi_options['use_pagenavi_css']) && !intval($pagenavi_options['use_pagenavi_css']) )

		return;



	if (@file_exists(STYLESHEETPATH.'/pagenavi-css.css')) {

		$css_file = get_stylesheet_directory_uri() . '/pagenavi-css.css';

	} elseif (@file_exists(TEMPLATEPATH.'/pagenavi-css.css')) {

		$css_file = get_template_directory_uri() . '/pagenavi-css.css';

	} else {

		$css_file = plugins_url('pagenavi-css.css', __FILE__);

	}



	wp_enqueue_style('wp-pagenavi', $css_file, false, '2.60', 'all');

}





### Function: Page Navigation: Boxed Style Paging

function wp_pagenavi($before = '', $after = '') {

	global $wpdb, $wp_query;

	

	pagenavi_init(); //Calling the pagenavi_init() function

	

	if (is_single()) 

		return;



	$pagenavi_options = get_option('pagenavi_options');



	$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']);

	$larger_page_to_show = intval($pagenavi_options['num_larger_page_numbers']);

	$larger_page_multiple = intval($pagenavi_options['larger_page_numbers_multiple']);

	$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="'.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="'.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="'.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="'.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="'.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="'.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="'.get_pagenum_link($page_num).'">'.$page_text."</option>\n";

					}

				}

				echo "</select>\n";

				echo "</form>\n";

				break;

		}

		echo '</div>'.$after."\n";

	}

}





### Function: Page Navigation: Drop Down Menu (Deprecated)

function wp_pagenavi_dropdown() { 

	wp_pagenavi(); 

}





### Function: Round To The Nearest Value

function n_round($num, $tonearest) {

   return floor($num/$tonearest)*$tonearest;

}





### Function: Filters for Previous and Next Posts Link CSS Class

add_filter('previous_posts_link_attributes','previous_posts_link_class');

function previous_posts_link_class() {

	return 'class="previouspostslink"';

}

add_filter('next_posts_link_attributes','next_posts_link_class');

function next_posts_link_class() {

	return 'class="nextpostslink"';

}





### Function: Page Navigation Options

register_activation_hook(__FILE__, 'pagenavi_init');

function pagenavi_init() {

	pagenavi_textdomain();

	// Add Options

	$pagenavi_options = array(

		'pages_text' => __('Page %CURRENT_PAGE% of %TOTAL_PAGES%','wp-pagenavi'),

		'current_text' => '%PAGE_NUMBER%',

		'page_text' => '%PAGE_NUMBER%',

		'first_text' => __('&laquo; First','wp-pagenavi'),

		'last_text' => __('Last &raquo;','wp-pagenavi'),

		'next_text' => __('&raquo;','wp-pagenavi'),

		'prev_text' => __('&laquo;','wp-pagenavi'),

		'dotright_text' => __('...','wp-pagenavi'),

		'dotleft_text' => __('...','wp-pagenavi'),

		'style' => 1,

		'num_pages' => 5,

		'always_show' => 0,

		'num_larger_page_numbers' => 3,

		'larger_page_numbers_multiple' => 10,

		'use_pagenavi_css' => 1,

	);

	add_option('pagenavi_options', $pagenavi_options);

}





