<?php

/* Check if several pages exist to avoid empty

   next/prev navigation on multi post pages */

function bfa_show_posts_nav() {

	global $wp_query;

	return ($wp_query->max_num_pages > 1) ? TRUE : FALSE;

}

/* Next/Previous PAGE Links (on multi post pages)

   in next_posts_link "next" means older posts

   Available parameters for $location: Top, Bottom. Default: Top */

function bfa_next_previous_page_links($location = "Top") {

	global $bfa_ata;

    $homeURL = get_home_url();  

	if ( !is_single() AND !is_page() AND

    strpos($bfa_ata['location_multi_next_prev'],$location) !== FALSE AND

    // don't display on WP Email pages

    intval(get_query_var('email')) != 1 AND

    // display only if next/prev links actually exist

    bfa_show_posts_nav() ) {

		if( function_exists('wp_pagenavi') ) {

			echo '<div class="wp-pagenavi-navigation">'; wp_pagenavi();

			echo '</div>';

		} else {

			if( $bfa_ata['home_multi_next_prev'] != '' ) { 

				ob_start();

					echo '<div class="home"><a href="' . $homeURL . '/">' . 

					$bfa_ata['home_multi_next_prev'] . '</a></div>'; 

					$nav_home_div_on = ob_get_contents(); 

				ob_end_clean();

				// make sure this is the real homepage and not a subsequent page

				if( is_front_page() AND !is_paged() ) {

					$nav_home_add = ""; $nav_home_div = ""; 

				} else {

					$nav_home_add = '-home';

					$nav_home_div = $nav_home_div_on; 

				}

			} else {

				$nav_home_add = ''; 

				$nav_home_div = ''; 

			}

			echo '<div class="clearfix navigation-'.strtolower($location).'">

			<div class="older' . $nav_home_add . '">';

			$bfa_ata['next_prev_orientation'] == 'Older Left, Newer Right' ? 

			next_posts_link($bfa_ata['multi_next_prev_older']) : 

			previous_posts_link($bfa_ata['multi_next_prev_newer']);

			echo ' &nbsp;</div>' . $nav_home_div . '<div class="newer' .

            $nav_home_add . '">  ';

			$bfa_ata['next_prev_orientation'] == 'Older Left, Newer Right' ? 

			previous_posts_link($bfa_ata['multi_next_prev_newer']) : 

			next_posts_link($bfa_ata['multi_next_prev_older']);

			echo '</div></div>';

		}

	} 						

}

/* Next/Previous POST Links (on single post pages)

   in next_post_link "next" means newer posts

   Available parameters for $location: Top, Middle, Bottom. Default: Top  */

function bfa_next_previous_post_links($location = "Top") {

    global $bfa_ata;

    $homeURL = get_home_url();  

	if ( is_single() AND strpos($bfa_ata['location_single_next_prev'],$location) !== FALSE AND

    // don't display on WP Email pages

    intval(get_query_var('email')) != 1 )  {

		echo '<div class="clearfix navigation-'.strtolower($location).'">

		<div class="older' . ($bfa_ata['home_single_next_prev'] != '' ?

        '-home' : '') . '">';

		if ($bfa_ata['next_prev_orientation'] == 'Older Left, Newer Right') {

			if($bfa_ata['single_next_prev_same_cat'] == "Yes") {

				previous_post_link($bfa_ata['single_next_prev_older'], '%title', TRUE);

			} else { 

				previous_post_link($bfa_ata['single_next_prev_older']);

			}

		} else {

			if($bfa_ata['single_next_prev_same_cat'] == "Yes") {

				next_post_link($bfa_ata['single_next_prev_newer'], '%title', TRUE);

			} else { 

				next_post_link($bfa_ata['single_next_prev_newer']);

			}

		}

		echo ' &nbsp;</div>';

		if ($bfa_ata['home_single_next_prev'] != '') { 

			echo '<div class="home"><a href="' . $homeURL . '/">' .

			$bfa_ata['home_single_next_prev'] . '</a></div>';

		}

		echo '<div class="newer';

		if ($bfa_ata['home_single_next_prev'] != '') {

			echo '-home';

		}

		echo '">  ';

		if ($bfa_ata['next_prev_orientation'] == 'Older Left, Newer Right') {

			if($bfa_ata['single_next_prev_same_cat'] == "Yes") {

				next_post_link($bfa_ata['single_next_prev_newer'], '%title', TRUE);

			} else { 

				next_post_link($bfa_ata['single_next_prev_newer']);

			}

		} else {

			if($bfa_ata['single_next_prev_same_cat'] == "Yes") {

				previous_post_link($bfa_ata['single_next_prev_older'], '%title', TRUE);

			} else { 

				previous_post_link($bfa_ata['single_next_prev_older']);

			}

		}

		echo '</div></div>';

	}

}

/* Next/Previous Comments Links.

   In next_comments_link "next" means newer.

   If navigation above comments is set: */

function bfa_next_previous_comments_links($location = "Above") {

	global $bfa_ata;

	if ( strpos($bfa_ata['location_comments_next_prev'],$location) !== FALSE ) {

		// if any navigation links exist, paginated or next/previous:

		if ( get_comment_pages_count() > 1 ) {

			// Overall navigation container

			echo '<div class="clearfix navigation-comments-'.strtolower($location).'">';

			if ( $bfa_ata['next_prev_comments_pagination'] == "Yes" ) {

				// paginated links

				paginate_comments_links(array(

				'prev_text' => $bfa_ata['comments_next_prev_older'],

				'next_text' => $bfa_ata['comments_next_prev_newer'],

				));

			} else {

				// next/previous links

				echo '<div class="older">';

				$bfa_ata['next_prev_orientation'] == 'Older Left, Newer Right' ?

				previous_comments_link($bfa_ata['comments_next_prev_older']) :

				next_comments_link($bfa_ata['comments_next_prev_newer']);

				echo ' &nbsp;</div><div class="newer">&nbsp; ';

				$bfa_ata['next_prev_orientation'] == 'Older Left, Newer Right' ?

				next_comments_link($bfa_ata['comments_next_prev_newer']) :

				previous_comments_link($bfa_ata['comments_next_prev_older']);

				echo '</div></div>';

			}

			echo '</div>';

		}

	}

}

?>