<?php

/** 

 *  Numbere Page Navigation

 *  ---------------------------------------------------------------------------

 *  @author     : Boutros AbiChedid

 *  @Date       : March 20, 2011

 *  @link       : http://bacsoftwareconsulting.com/

 *  @link       : http://blueoliveonline.com/

 *  --------------------------------------------------------------------------- */   

/*  Function that Rounds To The Nearest Value

 *  ---------------------------------------- */

    function round_num($num, $to_nearest) {

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

    }

​

/*  Function to Create The Pagenavi

 *  ---------------------------------------- */

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

        global $wpdb, $homepage_query;

        $pagenavi_options = array();

        $pagenavi_options['pages_text'] = (aero_get_option('pagenavi_pages_text') );

        $pagenavi_options['current_text'] = '%PAGE_NUMBER%';

        $pagenavi_options['page_text'] = '%PAGE_NUMBER%';

        $pagenavi_options['first_text'] = (aero_get_option('pagenavi_first_text') );

        $pagenavi_options['last_text'] = (aero_get_option('pagenavi_last_text') );

        $pagenavi_options['next_text'] = aero_get_option('pagenavi_next_text');

        $pagenavi_options['prev_text'] = aero_get_option('pagenavi_prev_text');

        $pagenavi_options['dotright_text'] = aero_get_option('pagenavi_dotright_text');

        $pagenavi_options['dotleft_text'] = aero_get_option('pagenavi_dotleft_text');

        $pagenavi_options['num_pages'] = aero_get_option('pagenavi_num_pages'); //continuous block of page numbers

        $pagenavi_options['always_show'] = aero_get_option('pagenavi_always_show');

        $pagenavi_options['num_larger_page_numbers'] = 0;

        $pagenavi_options['larger_page_numbers_multiple'] = aero_get_option('pagenavi_larger_page_numbers_multiple');

        if (!is_single()) {

            $request = $homepage_query->request;

            $posts_per_page = intval(get_query_var('posts_per_page'));

            $paged = intval(get_query_var('paged'));

            $numposts = $homepage_query->found_posts;

            $max_page = $homepage_query->max_num_pages;

            echo "<h1>posts per page: $posts_per_page, paged: $paged, num of posts: $numposts, max page: $max_page </h1>";

            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);

            //ceil — Round fractions up (http://us2.php.net/manual/en/function.ceil.php)

            $half_page_end = ceil($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_per_page = $larger_page_to_show*$larger_page_multiple;

            //round_num() custom function - Rounds To The Nearest Value.

            $larger_start_page_start = (round_num($start_page, 10) + $larger_page_multiple) - $larger_per_page;

            $larger_start_page_end = round_num($start_page, 10) + $larger_page_multiple;

            $larger_end_page_start = round_num($end_page, 10) + $larger_page_multiple;

            $larger_end_page_end = round_num($end_page, 10) + ($larger_per_page);

            if($larger_start_page_end - $larger_page_multiple == $start_page) {

                $larger_start_page_start = $larger_start_page_start - $larger_page_multiple;

                $larger_start_page_end = $larger_start_page_end - $larger_page_multiple;

            }

​

            if($larger_start_page_start <= 0) {

                $larger_start_page_start = $larger_page_multiple;

            }

​

            if($larger_start_page_end > $max_page) {

                $larger_start_page_end = $max_page;

            }

​

            if($larger_end_page_end > $max_page) {

                $larger_end_page_end = $max_page;

            }

​

            if($max_page > 1 || intval($pagenavi_options['always_show']) == 1) {

                /*http://php.net/manual/en/function.str-replace.php */

                /*number_format_i18n(): Converts integer number to format based on locale (wp-includes/functions.php*/

                $pages_text = str_replace("%CURRENT_PAGE%", number_format_i18n($paged), $pagenavi_options['pages_text']);

                $pages_text = str_replace("%TOTAL_PAGES%", number_format_i18n($max_page), $pages_text);

                echo $before.'<div class="pagenavi clearfix">'."\n";

                if(!empty($pages_text)) {

                    echo '<span class="pages">'.$pages_text.'</span>';

                }

                //Displays a link to the previous post which exists in chronological order from the current post.

                /*http://codex.wordpress.org/Function_Reference/previous_post_link*/

                previous_posts_link($pagenavi_options['prev_text']);

                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']);

                    //esc_url(): Encodes < > & " ' (less than, greater than, ampersand, double quote, single quote).

                    /*http://codex.wordpress.org/Data_Validation*/

                    //get_pagenum_link():(wp-includes/link-template.php)-Retrieve get links for page numbers.

                    echo '<a href="'.esc_url(get_pagenum_link()).'" class="first" title="'.$first_page_text.'">1</a>';

                    if(!empty($pagenavi_options['dotleft_text'])) {

                        echo '<span class="expand">'.$pagenavi_options['dotleft_text'].'</span>';

                    }

                }

                if($larger_page_to_show > 0 && $larger_start_page_start > 0 && $larger_start_page_end <= $max_page) {

                    for($i = $larger_start_page_start; $i < $larger_start_page_end; $i+=$larger_page_multiple) {

                        $page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['page_text']);

                        echo '<a href="'.esc_url(get_pagenum_link($i)).'" class="single_page" title="'.$page_text.'">'.$page_text.'</a>';

                    }

                }

                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($i)).'" class="single_page" title="Page '.$page_text.'">'.$page_text.'</a>';

                    }

                }

                if ($end_page < $max_page) {

                    if(!empty($pagenavi_options['dotright_text'])) {

                        echo '<span class="expand">'.$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($max_page)).'" title="'.$last_page_text.'">'.$max_page.'</a>';

                }

                next_posts_link($pagenavi_options['next_text'], $max_page);

                if($larger_page_to_show > 0 && $larger_end_page_start < $max_page) {

                    for($i = $larger_end_page_start; $i <= $larger_end_page_end; $i+=$larger_page_multiple) {

                        $page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['page_text']);

                        echo '<a href="'.esc_url(get_pagenum_link($i)).'" class="single_page" title="'.$page_text.'">'.$page_text.'</a>';

                    }

                }

​

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

            }

        }

    }

?>