functions.php

<?php
/*
Author: Eddie Machado
URL: htp://themble.com/bones/
*/
require_once('library/bones.php'); // if you remove this, bones will break
/*
library/custom-post-type.php
    - an example custom post type
    - example custom taxonomy (like categories)
    - example custom taxonomy (like tags)
*/
require_once('library/custom-post-type.php'); // you can disable this if you like
/*
library/admin.php
    - removing some default WordPress dashboard widgets
    - an example custom dashboard widget
    - adding custom login css
    - changing text in footer of admin
*/
// require_once('library/admin.php'); // this comes turned off by default
/*
library/translation/translation.php
    - adding support for other languages
*/
// require_once('library/translation/translation.php'); // this comes turned off by default

/************* THUMBNAIL SIZE OPTIONS *************/

// Thumbnail sizes
// add_image_size( 'fc-clients-thumb-wid', 296, 183, true );
// add_image_size( 'fc-clients-thumb-mob-tab', 216, 133, true );
add_image_size( 'fc-tiny', 136, 84, true );
add_image_size( 'fc-small', 216, 133, true );
// add_image_size( 'fc-posts-thumb-tab-wid', 320, 198, true );
// add_image_size( 'fc-posts-thumb-mob', 296, 183, true );
add_image_size( 'fc-medium', 296, 183, true );
add_image_size( 'fc-large', 320, 198, true );
/* 
to add more sizes, simply copy a line from above 
and change the dimensions & name. As long as you
upload a "featured image" as large as the biggest
set width or height, all the other sizes will be
auto-cropped.

To call a different size, simply change the text
inside the thumbnail function.

For example, to call the 300 x 300 sized image, 
we would use the function:
<?php the_post_thumbnail( 'bones-thumb-300' ); ?>
for the 600 x 100 image:
<?php the_post_thumbnail( 'bones-thumb-600' ); ?>

You can change the names and dimensions to whatever
you like. Enjoy!
*/

// custom image sizes in media uploader
add_filter('image_size_names_choose', 'fc_image_sizes');

function fc_image_sizes($sizes)
{
    // remove unwanted sizes
    unset( $sizes['thumbnail']);
    unset( $sizes['medium']);
    unset( $sizes['large']);

    // display custom sizes
    $myimgsizes = array(
    // "fc-clients-thumb-wid" => __( "Clients thumb (wide)" ),
    // "fc-clients-thumb-mob-tab" => __( "Clients thumb (mobile & tablet)" ),
    // "fc-posts-thumb-tab-wid" => __( "Posts thumb (tablet & wide)" ),
    // "fc-posts-thumb-mob" => __( "Posts thumb (mobile)" ),
        "fc-tiny" => __( "Search mobile & tablet" ),
        "fc-small" => __( "Clients mobile & tablet, Search wide" ),
        "fc-medium" => __( "Clients wide, Posts mobile" ),
        "fc-large" => __( "Posts tablet & wide" ),      
    );

    $newimgsizes = array_merge($sizes, $myimgsizes);
    return $newimgsizes;
}

// edit display of attachment upload options: prevent upload of small images
add_filter('attachment_fields_to_edit', 'fc_image_attachment_fields_to_edit', 11, 2);
function fc_image_attachment_fields_to_edit($form_fields, $post)
{

    if ( substr($post->post_mime_type, 0, 5) == 'image' ) {

        $tab = isset( $_GET['tab'] ) ? $_GET['tab'] : 'type';

        if ( $tab == 'type' )
        {
            //var_dump($post);

            $attchID = $post->ID;
            $meta = wp_get_attachment_metadata($attchID);
            $wid = isset($meta['width']) ? $meta['width'] : null;
            $hei = isset($meta['height']) ? $meta['height'] : null;

            $ext = getFileExt(wp_get_attachment_url($attchID, false));

            if ( $ext == 'bmp' )
            {
              echo '<div class="error" style="margin: 1em;">Use of BMP files is not recommended.</div>';
              //exit(1);  
            } else if ( $wid < 320 || $hei < 198 )
            {   
                echo '<div class="error" style="margin: 1em;">Metadata is incomplete or image too small. Image must be 320x198 or larger.</div>';
                wp_delete_attachment($attchID);
                exit(1);
            }
        }

        // $alt = get_post_meta($post->ID, '_wp_attachment_image_alt', true);
        // if ( empty($alt) )
        //     $alt = '';

        // $form_fields['post_title']['required'] = true;

        // $form_fields['image_alt'] = array(
        //     'value' => $alt,
        //     'label' => __('Alternate Text'),
        //     'helps' => __('Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;')
        // );

        // $form_fields['align'] = array(
        //     'label' => __('Alignment'),
        //     'input' => 'html',
        //     'html'  => image_align_input_fields($post, get_option('image_default_align')),
        // );

        $form_fields['image-size'] = image_size_input_fields( $post, get_option('image_default_size', 'full') );

    // } else {
    //     unset( $form_fields['image_alt'] );
    }
    return $form_fields;
}
function getFileExt($file) {
     return strtolower(substr(strrchr($file,'.'),1));
}


// add data attribute containing mobile image url to html sent by media uploader
add_filter('image_send_to_editor', 'edit_image_html', 20, 8);
function edit_image_html( $html, $id, $caption, $title, $align, $url, $size, $alt = '' )
{
    $thumb_attrs = wp_get_attachment_image_src( $id, 'fc-medium');
    $html = str_replace('class=', 'data-fc_thumb_url="'.$thumb_attrs[0].'" class=', $html);
    return $html;

}


/************* ACTIVE SIDEBARS ********************/

// Sidebars & Widgetizes Areas
function bones_register_sidebars() {
    register_sidebar(array(
        'id' => 'sidebar1',
        'name' => 'Sidebar 1',
        'description' => 'The first (primary) sidebar.',
        'before_widget' => '<div id="%1$s" class="widget %2$s">',
        'after_widget' => '</div>',
        'before_title' => '<h4 class="widgettitle">',
        'after_title' => '</h4>',
    ));
    
    register_sidebar(array(
        'id' => 'sidebar-blog-block',
        'name' => 'Blog Block',
        'description' => 'A content block (sidebar) for blog and twitter feeds.',
        'before_widget' => '<div id="%1$s" class="widget %2$s">',
        'after_widget' => '</div>',
        'before_title' => '<h4 class="widgettitle">',
        'after_title' => '</h4>',
    ));

    register_sidebar(array(
        'id' => 'sidebar-clients',
        'name' => 'Clients Page Sidebar',
        'description' => 'A sidebar for the Clients page.',
        'before_widget' => '<div id="%1$s" class="widget %2$s">',
        'after_widget' => '</div>',
        'before_title' => '<h4 class="widgettitle">',
        'after_title' => '</h4>',
    )); 

} // don't remove this bracket!

/************* COMMENT LAYOUT *********************/
        
// Comment Layout
function bones_comments($comment, $args, $depth) {
   $GLOBALS['comment'] = $comment; ?>
    <li <?php comment_class(); ?>>
        <article id="comment-<?php comment_ID(); ?>" class="clearfix">
            <header class="comment-author vcard">
                <?php /*
                    this is the new responsive optimized comment image. It used the new HTML5 data-attribute to display comment gravatars on larger screens only. What this means is that on larger posts, mobile sites don't have a ton of requests for comment images. This makes load time incredibly fast! If you'd like to change it back, just replace it with the regular wordpress gravatar call:
                    echo get_avatar($comment,$size='32',$default='<path_to_url>' );
                */ ?>
                <!-- custom gravatar call -->
                <img data-gravatar="http://www.gravatar.com/avatar/<?php echo md5(bone); ?>&s=32" class="load-gravatar avatar avatar-48 photo" height="32" width="32" src="<?php echo get_template_directory_uri(); ?>/library/images/nothing.gif" />
                <!-- end custom gravatar call -->
                <?php printf(__('<cite class="fn">%s</cite>'), get_comment_author_link()) ?>
                <time datetime="<?php echo comment_time('Y-m-j'); ?>"><a href="<?php echo htmlspecialchars( get_comment_link( $comment->comment_ID ) ) ?>"><?php comment_time('F jS, Y'); ?> </a></time>
                <?php edit_comment_link(__('(Edit)', 'bonestheme'),'  ','') ?>
            </header>
            <?php if ($comment->comment_approved == '0') : ?>
                <div class="alert info">
                    <p><?php _e('Your comment is awaiting moderation.', 'bonestheme') ?></p>
                </div>
            <?php endif; ?>
            <section class="comment_content clearfix">
                <?php comment_text() ?>
            </section>
            <?php comment_reply_link(array_merge( $args, array('depth' => $depth, 'max_depth' => $args['max_depth']))) ?>
        </article>
    <!-- </li> is added by wordpress automatically -->
<?php
} // don't remove this bracket!

/************* SEARCH FORM LAYOUT *****************/

// Search Form
function bones_wpsearch($form) {
    $form = '<form role="search" method="get" id="searchform" action="' . home_url( '/' ) . '" >
    <label class="screen-reader-text" for="s">' . __('Search for:', 'bonestheme') . '</label>
    <span data-icon="&#xe007;"></span><input class="search_window" type="text" value="' . get_search_query() . '" name="s" id="s" placeholder="'.esc_attr__('Search','bonestheme').'" />
    <input type="hidden" id="searchsubmit" value="'. esc_attr__('Search') .'" />
    </form>';
    return $form;
} // don't remove this bracket!


// Restrict search to retrieve "post" post_type only
add_filter('pre_get_posts','fc_search_filter');

function fc_search_filter($query) {
  if ($query->is_search) {
    // Insert the specific post types you want to search
    $query->set('post_type', array('post'));
  }
  return $query;
}

// Customize length of excerpts; see $excerpt_length in fc_highlight_excerpt()
// add_filter( 'excerpt_length', 'custom_excerpt_length', 999 );
// function custom_excerpt_length( $length )
// {
//     return 40;
// }

// Customize excerpt and search results (highlighting, contextual results)
add_filter('the_title', 'fc_highlight_title');
add_filter('the_excerpt', 'fc_highlight_excerpt');


function fc_highlight_title($str)
{
    if ( is_search() && in_the_loop() )
    {
        global $post;
        $title_position = 1;
        if (!isset($post->last_post_id)) $post->last_post_id = '';
        if ( $post->last_post_id != $post->ID )
        {
            $post->last_post_id    = $post->ID;
            $post->last_post_count = 0;
        }
        $post->last_post_count++;
        if ( $post->last_post_count - 1 == $title_position )
        {
            return fc_highlight_string($str);
        }
    }
    return $str;
}
function fc_highlight_excerpt()
{
    global $post;
    $excerpt_length = apply_filters('excerpt_length', 40);
    $excerpt_more = apply_filters('excerpt_more', '…');
    // Correct apostrophe to allow matching of search terms including them
    $text = fc_convert_apostrophe(apply_filters('the_content', $post->post_content));
    // RegEx to match operning paragraph tags to be replaced with paragraph symbol '¶'
    /*$regex = '#<p.*?>#is';*/
    /*$regex = '#<p.*?>[^(\s|&nbsp;?)*</p>]#is';*/
    /*$regex = '#(?<=.)<p[^>]*>(?!(\s|\t|\n|\r|&nbsp;)*</p>)#is';*/
    // RegEx pseudocode: do not match if anything before <p> tag; match all opening <p> tags; except those that enclose spaces or newlines; make case insensitive, single-line mode
    $regex = '#(?<=.)<p[^>]*>(?!(?:[\t\r\n\s]|&nbsp;|\xa0)*</p>)#is';
    $para = utf8_encode(chr(182));
    $text = wp_strip_all_tags(preg_replace($regex, $para, $text));
    //echo 'TESTING: '.$text.'END.';
    // Create the default excerpt
    $excerpted_text = wp_trim_words($text, $excerpt_length, $excerpt_more);
    if (is_search())
    {
        $text_matched = preg_match(fc_search_query(), $text, $matches, PREG_OFFSET_CAPTURE); // save the matched terms with their offsets
        if ($text_matched)
        {
            $wrapclass = '';
            $offset = $matches[0][1]+strlen($matches[0][0]);
            // the offset into the end of the text where the term was found
            // hack: we want to add context for where the term was found, but we want it to use whole words. wp_trim_words will trim the end,
            // but we want so many words (empirically, one third the excerpt length) in the beginning. So we reverse the text and use that.
            $len = $excerpt_length/3;
            // need to use a single character to indicate truncation since we are reversing the text
            $reversetext = fc_utf8_strrev(wp_trim_words(fc_utf8_strrev(substr($text, 0, $offset)), $len, '…'));
            $context = $reversetext.substr($text, $offset); // rebuild it
            $hitext = fc_highlight_string(wp_trim_words($context, $excerpt_length, $excerpt_more));
            // Add a class to allow smallcaps formatting to first line
            if (substr($context, 0, 3) == '…')
            {
                $wrapclass = 'nosmallcaps';
            }
            return '<p class="'.$wrapclass.'">'.$hitext.'</p>';
        }
    }
    // Just use the usual excerpt 
    return '<p>'.$excerpted_text.'</p>';
}
/*
// Replacement for wp_trim_words as the core function does not preserve newline
function fc_trim_words( $text, $num_words = 55, $more = null ) {
    if ( null === $more )
        $more = __( '&hellip;' );
    $original_text = $text;
    $text = fc_strip_all_tags( $text );
    $words_array = preg_split( "/[\n\r\t ]+/", $text, $num_words + 1, PREG_SPLIT_NO_EMPTY );
    if ( count( $words_array ) > $num_words ) {
        array_pop( $words_array );
        $text = implode( ' ', $words_array );
        $text = $text . $more;
    } else {
        $text = implode( ' ', $words_array );
    }
    return apply_filters( 'wp_trim_words', $text, $num_words, $more, $original_text );
}
// Replacement for wp_strip_all_tags as the core function does not preserve newline
function fc_strip_all_tags($string, $remove_breaks = false) {
    $string = preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', '', $string );
    $string = strip_tags($string);

    if ( $remove_breaks ) $string = preg_replace( '/[\r\n\t ]+/', ' ', $string );

    return trim($string);
}
*/
function fc_highlight_string($str)
{
    return preg_replace(fc_search_query(), '<span class="search-excerpt">\0</span>', $str);
}
function fc_search_query()
{
    global $wp_query;
    $terms = $wp_query->query_vars['search_terms'];
    foreach ($terms as &$term) $term = preg_quote($term, '/');
    return '/'.implode('|', $terms).'/iu';
}
function fc_utf8_strrev($str)
{
    preg_match_all('/./us', $str, $ar);
    return implode(array_reverse($ar[0]));
}
//Convert right single quote to apostrophe
function fc_convert_apostrophe($str)
{
    return html_entity_decode(str_replace("&#8217;","'",$str));
}

//  ========================
//  = Additional Functions =
//  ========================


// function set_newuser_cookie() {
//     if (!isset($_COOKIE['sitename_newvisitor'])) {
//         setcookie('sitename_newvisitor', 1, time()+1209600, COOKIEPATH, COOKIE_DOMAIN, false);
//     }
// }
// add_action( 'init', 'set_newuser_cookie');

// if (!isset($_COOKIE['sitename_newvisitor'])) {
//  echo 'Welcome, new user!';
// }

// function is_mobile_device() {
//  $useragent=$_SERVER['HTTP_USER_AGENT'];
//  // Detect Mobile Device
//  // http://detectmobilebrowsers.com
//  if (preg_match('/android.+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i',$useragent)||preg_match('/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(di|rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i',substr($useragent,0,4))) {
//      return true;
//  } else {
//      return false;
//  }
// }

/*
 * Functions:   Optimize Contact Form 7
 *
 */

function deregister_cf7_js() {
    if ( !is_page('Contact') ) {
    //wp_deregister_script( 'contact-form-7' ); //deregister causes undefined index & another error
    wp_deregister_script( 'jquery-form' );
    wp_dequeue_script( 'contact-form-7' );
    }
}
 add_action( 'wp_print_scripts', 'deregister_cf7_js', 100 );

function deregister_ct7_styles() {
    wp_deregister_style( 'contact-form-7' );
}
add_action( 'wp_print_styles', 'deregister_ct7_styles', 100 );


/* Metaboxes - WPAlchemy */

include_once 'library/metaboxes/setup.php';

include_once 'library/metaboxes/portfolio_item-spec.php';

include_once 'library/metaboxes/post-spec.php';

/*********************
PAGE NAVI
*********************/  


// Add title attribute to next and previous navi links
add_filter('next_posts_link_attributes', 'get_next_posts_link_attributes');
add_filter('previous_posts_link_attributes', 'get_previous_posts_link_attributes');

if (!function_exists('get_next_posts_link_attributes')){
    function get_next_posts_link_attributes($attr){
        $attr = 'rel="next" title="Next"';
        return $attr;
    }
}
if (!function_exists('get_previous_posts_link_attributes')){
    function get_previous_posts_link_attributes($attr){
        $attr = 'rel="previous" title="Previous"';
        return $attr;
    }
}

// Numeric Page Navi (modified from Bones default page navi)
function fc_page_navi($before = '', $after = '') {
    global $wpdb, $wp_query;
    $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 = $wp_query->max_num_pages;
    if ( $numposts <= $posts_per_page ) { return; }
    if(empty($paged) || $paged == 0) {
        $paged = 1;
    }
    $pages_to_show = 3;
    $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;
    }
    echo $before.'<nav class="page-navigation"><ul class="bones_page_navi '."";

    if (is_mobile())
    {
        echo 'page_navi_mobile clearfix">';
        if ( $paged > 1 )
        {
            echo '<li class="bpn-prev-link"><a href="' . previous_posts( false ) . '" rel="newer" title="Newer" data-icon="&#xe000;"><span>Newer</span></a>';
        } else
        {
            echo '<li class="bpn-prev-nolink" data-icon="&#xe000;"><span>Newer</span>';
        }
        echo '</li>';
        $nextpage = intval($paged) + 1;     
        if ( $nextpage <= $max_page )
        {
            echo '<li class="bpn-next-link" ><a href="' . next_posts( $max_page, false ) . '" rel="older" title="Older" data-icon="&#xe001;"><span>Older</span></a>';
        } else
        {
            echo '<li class="bpn-next-nolink" data-icon="&#xe001;"><span>Older</span>';
        }
        echo '</li>';
    } else
    {
        echo 'clearfix">';
        if ($start_page >= 2 && $pages_to_show < $max_page) {
            $first_page_text = "First";
            echo '<li class="bpn-first-page-link"><a href="'.get_pagenum_link().'" title="'.$first_page_text.'" data-icon="&#xe002;"><span class="visuallyhidden">'.$first_page_text.'</span></a></li>';
        }
        for($i = $start_page; $i  <= $end_page; $i++) {
            if($i == $paged) {
                echo '<li class="bpn-prev-link">';
                previous_posts_link('<span data-icon="&#xe000;"><span class="visuallyhidden"><<</span></span>');
                echo '</li>';
                echo '<li class="bpn-current" data-icon="&#xe004;"><span>'.$i.'</span></li>';
                echo '<li class="bpn-next-link">';
                next_posts_link('<span data-icon="&#xe001;"><span class="visuallyhidden">>></span></span>');
                echo '</li>';
            } else {
                echo '<li><a href="'.get_pagenum_link($i).'" title="Page">'.$i.'</a></li>';
            }
        }
        if ($end_page < $max_page) {
            $last_page_text = "Last";
            echo '<li class="bpn-last-page-link"><a href="'.get_pagenum_link($max_page).'" title="'.$last_page_text.'" data-icon="&#xe003;"><span class="visuallyhidden">'.$last_page_text.'</span></a></li>';
        }
    }
    echo '</ul></nav><div class="divider"></div>'.$after."";
} /* end page navi */


// Modify pagination for search and category pages
function my_post_queries( $query ) {
  // do not alter the query on wp-admin pages and only alter it if it's the main query
  if (!is_admin() && $query->is_main_query()){

    // alter the query for the home and category pages 

    if(is_search() | is_category()){
      $query->set('posts_per_page', 4);
    }

  }
}
add_action( 'pre_get_posts', 'my_post_queries' );

// current-menu-item with custom post types and custom menus bug workaround
// http://www.rarescosma.com/2010/11/add-a-class-to-wp_nav_menu-items-with-urls-included-in-the-current-url/
// add_filter( 'nav_menu_css_class', 'add_parent_url_menu_class', 10, 2 );

// function add_parent_url_menu_class( $classes = array(), $item = false ) {
//     // Get current URL
//     $current_url = current_url();

//     // Get homepage URL
//     $homepage_url = trailingslashit( get_bloginfo( 'url' ) );

//     // Exclude 404 and homepage
//     if( is_404() or $item->url == $homepage_url ) return $classes;

//     //echo 'CURRENT URL: ' . parse_url ( $current_url, PHP_URL_PATH ); echo 'ITEM URL: '; echo $item->url;

//     if ( strstr( $current_url, $item->url) && ! in_array( 'current-menu-item', $classes ) ) {
//         // Add the 'current-menu-item' class
//         $classes[] = 'current-menu-item';
//     }

//     return $classes;
// }

// function current_url() {
//     // Protocol
//     $url = ( 'on' == isset( $_SERVER['HTTPS'] ) ) ? 'https://' : 'http://';

//     $url .= $_SERVER['SERVER_NAME'];

//     // Port
//     $url .= ( '80' == $_SERVER['SERVER_PORT'] ) ? '' : ':' . $_SERVER['SERVER_PORT'];

//     $url .= $_SERVER['REQUEST_URI'];

//     return trailingslashit( $url );
// }

// As of WP 3.1.1 addition of classes for css styling to parents of custom post types doesn't exist.
// We want the correct classes added to the correct custom post type parent in the wp-nav-menu for css styling and highlighting, so we're modifying each individually...
// The id of each link is required for each one you want to modify
// Place this in your WordPress functions.php file

function remove_parent_classes($class)
{
  // check for current page classes, return false if they exist.
    return ($class == 'current_page_item' || $class == 'current_page_parent' || $class == 'current_page_ancestor'  || $class == 'current-menu-item') ? FALSE : TRUE;
}

function add_class_to_wp_nav_menu($classes)
{
    switch (get_post_type())
    {
        case 'portfolio_item':
        // we're viewing a custom post type, so remove the 'current_page_xxx and current-menu-item' from all menu items.
        $classes = array_filter($classes, "remove_parent_classes");

        // add the current page class to a specific menu item.
        if (in_array('menu-item-clients', $classes))
        {
            $classes[] = 'current_page_parent';
        }
        break;

        // add more cases if necessary and/or a default
        
        // error page, etc
        case null:
        $classes = array_filter($classes, "remove_parent_classes");
        break;

    }
    return $classes;
}
add_filter('nav_menu_css_class', 'add_class_to_wp_nav_menu');

// retrieves taxonomy terms; called from template pages
function get_tax( $the_id, $tax ) {
    if (!taxonomy_exists($tax))
    {
        //echo 'Error: Taxonomy does not exist.';
    } else
    {
        $the_terms = wp_get_object_terms($the_id, $tax);
        if(!empty($the_terms)){
          if(!is_wp_error( $the_terms )){
            foreach($the_terms as $term)
            {
                echo '<li><a href="'.get_term_link($term->slug, $tax).'" rel="tag" title="View all posts filed under '.$term->name.'">'.$term->name.'</a></li>';
            }
          }
        }
    }
}

// add button class to stock categories widget output
function add_id_from_slug($wp_list_categories) {
    $pattern = '/<a href/';
    $replacement = '<a class="button" href';

    return preg_replace($pattern, $replacement, $wp_list_categories);
}
add_filter('wp_list_categories','add_id_from_slug');

?>