<?php

// Generates semantic classes for BODY element

function thematic_body_class( $print = true ) {

	global $wp_query, $current_user;

    $c = '';

	if (apply_filters('thematic_show_bc_wordpress', TRUE)) {

        // It's surely a WordPress blog, right?

        $c = array('wordpress');

    }

	if (apply_filters('thematic_show_bc_datetime', TRUE)) {

        // Applies the time- and date-based classes (below) to BODY element

        thematic_date_classes( time(), $c );

    }

    if (apply_filters('thematic_show_bc_contenttype', TRUE)) {

        // Generic semantic classes for what type of content is displayed

        is_front_page()  ? $c[] = 'home'       : null; // For the front page, if set

        is_home()        ? $c[] = 'blog'       : null; // For the blog posts page, if set

        is_archive()     ? $c[] = 'archive'    : null;

        is_date()        ? $c[] = 'date'       : null;

        is_search()      ? $c[] = 'search'     : null;

        is_paged()       ? $c[] = 'paged'      : null;

        is_attachment()  ? $c[] = 'attachment' : null;

        is_404()         ? $c[] = 'four04'     : null; // CSS does not allow a digit as first character

    }

    if (apply_filters('thematic_show_bc_singular', TRUE)) {

        // Special classes for BODY element when a singular post

        if ( is_singular() ) {

            $c[] = 'singular';

        } else {

            $c[] = 'not-singular';

        }

    }

	// Special classes for BODY element when a single post

	if ( is_single() && apply_filters('thematic_show_bc_singlepost', TRUE)) {

		$postID = $wp_query->post->ID;

		the_post();

        // Adds post slug class, prefixed by 'slug-'

        $c[] = 'slug-' . $wp_query->post->post_name;

		// Adds 'single' class and class with the post ID

		$c[] = 'single postid-' . $postID;

		// Adds classes for the month, day, and hour when the post was published

		if ( isset( $wp_query->post->post_date ) )

			thematic_date_classes( mysql2date( 'U', $wp_query->post->post_date ), $c, 's-' );

		// Adds category classes for each category on single posts

		if ( $cats = get_the_category() )

			foreach ( $cats as $cat )

				$c[] = 's-category-' . $cat->slug;

		// Adds tag classes for each tags on single posts

		if ( $tags = get_the_tags() )

			foreach ( $tags as $tag )

				$c[] = 's-tag-' . $tag->slug;

		// Adds MIME-specific classes for attachments

		if ( is_attachment() ) {

			$mime_type = get_post_mime_type();

			$mime_prefix = array( 'application/', 'image/', 'text/', 'audio/', 'video/', 'music/' );

				$c[] = 'attachmentid-' . $postID . ' attachment-' . str_replace( $mime_prefix, "", "$mime_type" );

		}

		// Adds author class for the post author

		$c[] = 's-author-' . sanitize_title_with_dashes(strtolower(get_the_author_meta('user_nicename', $post->post_author)));

		rewind_posts();

		// For posts with excerpts

		if (has_excerpt())

			$c[] = 's-has-excerpt';

		// For posts with comments open or closed

		if (comments_open()) {

			$c[] = 's-comments-open';		

		} else {

			$c[] = 's-comments-closed';

		}

		// For posts with pings open or closed

		if (pings_open()) {

			$c[] = 's-pings-open';

		} else {

			$c[] = 's-pings-closed';

		}

		// For password-protected posts

		if ( $post->post_password )

			$c[] = 's-protected';

		// For sticky posts

		if (is_sticky())

		   $c[] = 's-sticky';		

	}

	// Author name classes for BODY on author archives

	elseif ( is_author() && apply_filters('thematic_show_bc_authorarchives', TRUE)) {

		$author = $wp_query->get_queried_object();

		$c[] = 'author';

		$c[] = 'author-' . $author->user_nicename;

	}

	// Category name classes for BODY on category archvies

	elseif ( is_category() && apply_filters('thematic_show_bc_categoryarchives', TRUE)) {

		$cat = $wp_query->get_queried_object();

		$c[] = 'category';

		$c[] = 'category-' . $cat->slug;

	}

	// Tag name classes for BODY on tag archives

	elseif ( is_tag() && apply_filters('thematic_show_bc_tagarchives', TRUE)) {

		$tags = $wp_query->get_queried_object();

		$c[] = 'tag';

		$c[] = 'tag-' . $tags->slug;

	}

	// Page author for BODY on 'pages'

	elseif ( is_page() && apply_filters('thematic_show_bc_pages', TRUE)) {

		$pageID = $wp_query->post->ID;

		$page_children = wp_list_pages("child_of=$pageID&echo=0");

		the_post();

        // Adds post slug class, prefixed by 'slug-'

        $c[] = 'slug-' . $wp_query->post->post_name;

		$c[] = 'page pageid-' . $pageID;

		$c[] = 'page-author-' . sanitize_title_with_dashes(strtolower(get_the_author_meta('user_nicename', $post->post_author)));

		// Checks to see if the page has children and/or is a child page; props to Adam

		if ( $page_children )

			$c[] = 'page-parent';

		if ( $wp_query->post->post_parent )

			$c[] = 'page-child parent-pageid-' . $wp_query->post->post_parent;

		// For pages with excerpts

		if (has_excerpt())

			$c[] = 'page-has-excerpt';

		// For pages with comments open or closed

		if (comments_open()) {

			$c[] = 'page-comments-open';		

		} else {

			$c[] = 'page-comments-closed';

		}

		// For pages with pings open or closed

		if (pings_open()) {

			$c[] = 'page-pings-open';

		} else {

			$c[] = 'page-pings-closed';

		}

		// For password-protected pages

		if ( $post->post_password )

			$c[] = 'page-protected';			

		// Checks to see if the page is using a template	

		if ( is_page_template() & !is_page_template('default') )

			$c[] = 'page-template page-template-' . str_replace( '.php', '-php', get_post_meta( $pageID, '_wp_page_template', true ) );

		rewind_posts();

	}

	// Search classes for results or no results

	elseif ( is_search() && apply_filters('thematic_show_bc_search', TRUE)) {

		the_post();

		if ( $wp_query->found_posts > 0 ) {

			$c[] = 'search-results';

		} else {

			$c[] = 'search-no-results';

		}

		rewind_posts();

	}

	if (apply_filters('thematic_show_bc_loggedin', TRUE)) {

        // For when a visitor is logged in while browsing

        if ( $current_user->ID )

            $c[] = 'loggedin';

    }

	// Paged classes; for 'page X' classes of index, single, etc.

	if ( (( ( $page = $wp_query->get('paged') ) || ( $page = $wp_query->get('page') ) ) && $page > 1) && apply_filters('thematic_show_bc_pagex', TRUE)) {

	// Thanks to Prentiss Riddle, twitter.com/pzriddle, for the security fix below. 

 			$page = intval($page); // Ensures that an integer (not some dangerous script) is passed for the variable

		$c[] = 'paged-' . $page;

		if ( is_single() ) {

			$c[] = 'single-paged-' . $page;

		} elseif ( is_page() ) {

			$c[] = 'page-paged-' . $page;

		} elseif ( is_category() ) {

			$c[] = 'category-paged-' . $page;

		} elseif ( is_tag() ) {

			$c[] = 'tag-paged-' . $page;

		} elseif ( is_date() ) {

			$c[] = 'date-paged-' . $page;

		} elseif ( is_author() ) {

			$c[] = 'author-paged-' . $page;

		} elseif ( is_search() ) {

			$c[] = 'search-paged-' . $page;

		}

	}

	if (apply_filters('thematic_show_bc_browser', TRUE)) {

        // A little Browser detection shall we?

        $browser = $_SERVER[ 'HTTP_USER_AGENT' ];

        // Mac, PC ...or Linux

        if ( preg_match( "/Mac/", $browser ) ){

			$c[] = 'mac';

        } elseif ( preg_match( "/Windows/", $browser ) ){

			$c[] = 'windows';

        } elseif ( preg_match( "/Linux/", $browser ) ) {

			$c[] = 'linux';

        } else {

			$c[] = 'unknown-os';

        }

        // Checks browsers in this order: Chrome, Safari, Opera, MSIE, FF

        if ( preg_match( "/Chrome/", $browser ) ) {

			$c[] = 'chrome';

			preg_match( "/Chrome\/(\d.\d)/si", $browser, $matches);

			$ch_version = 'ch' . str_replace( '.', '-', $matches[1] );      

			$c[] = $ch_version;

        } elseif ( preg_match( "/Safari/", $browser ) ) {

			$c[] = 'safari';

			preg_match( "/Version\/(\d.\d)/si", $browser, $matches);

			$sf_version = 'sf' . str_replace( '.', '-', $matches[1] );      

			$c[] = $sf_version;

        } elseif ( preg_match( "/Opera/", $browser ) ) {

			$c[] = 'opera';

			preg_match( "/Opera\/(\d.\d)/si", $browser, $matches);

			$op_version = 'op' . str_replace( '.', '-', $matches[1] );      

			$c[] = $op_version;

        } elseif ( preg_match( "/MSIE/", $browser ) ) {

			$c[] = 'msie';

			if( preg_match( "/MSIE 6.0/", $browser ) ) {

					$c[] = 'ie6';

			} elseif ( preg_match( "/MSIE 7.0/", $browser ) ){

					$c[] = 'ie7';

			} elseif ( preg_match( "/MSIE 8.0/", $browser ) ){

					$c[] = 'ie8';

			}

        } elseif ( preg_match( "/Firefox/", $browser ) && preg_match( "/Gecko/", $browser ) ) {

			$c[] = 'firefox';

			preg_match( "/Firefox\/(\d)/si", $browser, $matches);

			$ff_version = 'ff' . str_replace( '.', '-', $matches[1] );      

			$c[] = $ff_version;

        } else {

			$c[] = 'unknown-browser';

        }

	}

	// Separates classes with a single space, collates classes for BODY

	$c = join( ' ', apply_filters( 'body_class',  $c ) ); // Available filter: body_class

	// And tada!

	return $print ? print($c) : $c;

}

// Generates semantic classes for each post DIV element

function thematic_post_class( $print = true ) {

	global $post, $thematic_post_alt;

	// hentry for hAtom compliace, gets 'alt' for every other post DIV, describes the post type and p[n]

	$c = array( 'hentry', "p$thematic_post_alt", $post->post_type, $post->post_status );

	// Author for the post queried

	$c[] = 'author-' . sanitize_title_with_dashes(strtolower(get_the_author('login')));

	// Category for the post queried

	foreach ( (array) get_the_category() as $cat )

		$c[] = 'category-' . $cat->slug;

	// Tags for the post queried; if not tagged, use .untagged

	if ( get_the_tags() == null ) {

		$c[] = 'untagged';

	} else {

		foreach ( (array) get_the_tags() as $tag )

			$c[] = 'tag-' . $tag->slug;

	}

	// For posts with excerpts

	if (has_excerpt())

		$c[] = 'has-excerpt';

	// For posts with comments open or closed

	if (comments_open()) {

		$c[] = 'comments-open';		

	} else {

		$c[] = 'comments-closed';

	}

	// For posts with pings open or closed

	if (pings_open()) {

		$c[] = 'pings-open';

	} else {

		$c[] = 'pings-closed';

	}

	// For password-protected posts

	if ( $post->post_password )

		$c[] = 'protected';

	// For sticky posts

	if (is_sticky())

	   $c[] = 'sticky';

	// Applies the time- and date-based classes (below) to post DIV

	thematic_date_classes( mysql2date( 'U', $post->post_date ), $c );

	// If it's the other to the every, then add 'alt' class

	if ( ++$thematic_post_alt % 2 )

		$c[] = 'alt';

    // Adds post slug class, prefixed by 'slug-'

    $c[] = 'slug-' . $post->post_name;

	// Separates classes with a single space, collates classes for post DIV

	$c = join( ' ', apply_filters( 'post_class', $c ) ); // Available filter: post_class

	// And tada!

	return $print ? print($c) : $c;

}

// Define the num val for 'alt' classes (in post DIV and comment LI)

$thematic_post_alt = 1;

// Generates semantic classes for each comment LI element

function thematic_comment_class( $print = true ) {

	global $comment, $post, $thematic_comment_alt, $comment_depth, $comment_thread_alt;

	// Collects the comment type (comment, trackback),

	$c = array( $comment->comment_type );

	// Counts trackbacks (t[n]) or comments (c[n])

	if ( $comment->comment_type == 'comment' ) {

		$c[] = "c$thematic_comment_alt";

	} else {

		$c[] = "t$thematic_comment_alt";

	}

	// If the comment author has an id (registered), then print the log in name

	if ( $comment->user_id > 0 ) {

		$user = get_userdata($comment->user_id);

		// For all registered users, 'byuser'; to specificy the registered user, 'commentauthor+[log in name]'

		$c[] = 'byuser comment-author-' . sanitize_title_with_dashes(strtolower( $user->user_login ));

		// For comment authors who are the author of the post

		if ( $comment->user_id === $post->post_author )

			$c[] = 'bypostauthor';

	}

	// If it's the other to the every, then add 'alt' class; collects time- and date-based classes

	thematic_date_classes( mysql2date( 'U', $comment->comment_date ), $c, 'c-' );

	if ( ++$thematic_comment_alt % 2 )

		$c[] = 'alt';

	// Comment depth

	$c[] = "depth-$comment_depth";

	// Separates classes with a single space, collates classes for comment LI

	$c = join( ' ', apply_filters( 'comment_class', $c ) ); // Available filter: comment_class

	// Tada again!

	return $print ? print($c) : $c;

}

// Generates time- and date-based classes for BODY, post DIVs, and comment LIs; relative to GMT (UTC)

function thematic_date_classes( $t, &$c, $p = '' ) {

	$t = $t + ( get_option('gmt_offset') * 3600 );

	$c[] = $p . 'y' . gmdate( 'Y', $t ); // Year

	$c[] = $p . 'm' . gmdate( 'm', $t ); // Month

	$c[] = $p . 'd' . gmdate( 'd', $t ); // Day

	$c[] = $p . 'h' . gmdate( 'H', $t ); // Hour

}

// Remember: Thematic, like The Sandbox, is for play.

?>