<?php
/* Aspen - runtime utils
 *
 * needed both at admin time and runtime
 */

// # CONTENTS

// # OPTIONS
// # PER PAGE OPTIONS
// # WIDGET AREA OPTIONS
// # HTML CODE AREAS
// # RUNTIME SAPI HELPER FUNCTIONS
// # PAGE WITH POSTS
// # FILTERS
// # MISC
// # OTHER UTILS

// # Aspen Globals ==============================================================
$aspen_opts_cache = false;	// internal cache for all settings
$aspen_cur_page_ID = false;	// the ID of the current page
$aspen_cur_post_id = false;	// the ID of the current page
$aspen_cur_post_count = 0;	// to keep track of even/odd
$aspen_cur_template = '';	// current page template - set in functions.php setup
$aspen_crumbs = false;
$aspen_header = array();	// as of WP 3.4
$aspen_sticky = false;
$aspen_header_who = '';

// # OPTIONS ==============================================================


function aspen_getopt($opt) {
    global $aspen_opts_cache;
    aspen_opt_cache();

    if (!isset($aspen_opts_cache[$opt]))	// handles changes to data structure
      {
	return false;
      }
    return $aspen_opts_cache[$opt];
}

function aspen_getopt_checked($opt) {
    global $aspen_opts_cache;
    aspen_opt_cache();

    if (!isset($aspen_opts_cache[$opt]))	// handles changes to data structure
      {
	return false;
      }
    if (!$aspen_opts_cache[$opt]) return false;
    return true;
}

function aspen_setopt($opt, $val, $save = true) {
    global $aspen_opts_cache;
    if (!$aspen_opts_cache) {
        $aspen_opts_cache = get_option( apply_filters('aspen_options','aspen_settings') ,array());
    }

    $aspen_opts_cache[$opt] = $val;
    if ($save)
	aspen_wpupdate_option('aspen_settings',$aspen_opts_cache);

}

function aspen_delete_all_options() {
    global $aspen_opts_cache;
    $aspen_opts_cache = false;
    if (current_user_can( 'manage_options' ))
	delete_option( apply_filters('aspen_options','aspen_settings') );
}

function aspen_wpupdate_option($name,$opts) {
    if (current_user_can( 'manage_options' ))
	update_option(apply_filters('aspen_options',$name), $opts);
}

function aspen_update_options($id) {
    global $aspen_opts_cache;
    if (!$aspen_opts_cache)
        $aspen_opts_cache = get_option( apply_filters('aspen_options','aspen_settings') ,array());
    aspen_wpupdate_option('aspen_settings',$aspen_opts_cache);
}


function aspen_save_opts($who='', $bump = true) {
    // Save options
    // Here's the strategy. Using aspen_getopt always loads the cache if it hasn't been.
    // Using aspen_setopt will save the cache to the database by default
    // So we take advantage of this by bumping the style version, and using aspen_setopt,
    // which saves to the database

    $vers = aspen_getopt('style_version');

    if ($bump) $vers = $vers ? $vers + 1 : 1;	// bump or init

    aspen_setopt('style_version',$vers);	// update options, style version
}

function aspen_e_opt($opt,$str) {
    if (aspen_getopt_checked($opt))
        echo $str;
}

function aspen_e_notopt($opt,$str) {
    if (!aspen_getopt_checked($opt))
        echo $str;
}

// # PER PAGE OPTIONS =========================================================
function aspen_get_per_page_value($name) {
    global $aspen_cur_page_ID;
    return get_post_meta($aspen_cur_page_ID,$name,true);
}

function aspen_get_per_post_value($meta_name) {
    global $aspen_cur_post_id;
    return get_post_meta($aspen_cur_post_id,$meta_name,true);  // retrieve meta value
}

function aspen_is_checked_post_opt($meta_name) {
    // the standard is to check options to hide things
    global $aspen_cur_post_id;

    $val = get_post_meta($aspen_cur_post_id,$meta_name,true);  // retrieve meta value
    if (!empty($val)) return true;		// value exists - 'on'
    return false;
}

function aspen_is_checked_page_opt($meta_name) {
    // the standard is to check options to hide things
    global $aspen_cur_page_ID;

    $val = get_post_meta($aspen_cur_page_ID,$meta_name,true);  // retrieve meta value
    if (!empty($val)) return true;		// value exists - 'on'
    return false;
}

function aspen_page_posts_error($info='') {
    echo('<h2 style="color:red;">WARNING: error defining Custom Field on Page with Posts.</h2>');
    if (strlen($info) > 0) echo('More info: '.$info.'<br />');
}


// # RUNTIME SAPI HELPER FUNCTIONS ============================================

function aspen_sapi_options_init() {
    /* this will initialize the SAPI stuff, must be called from the admin_init cb function .
	In reality, we really only need to register one setting - 'aspen_main_settings_group',
	and the settings will be saved in the WP DB as 'aspen_main_settings'. The SAPI uses
	the name param of any <input> fields to figure out where to store the input value.

	The validation will have to scan the ENTIRE list of options and lookup the kind of
	validation each parameter needs.
    */

    register_setting('aspen_settings_group',	/* the group name of our settings */
	apply_filters('aspen_options','aspen_settings'),	/* the get_option name */
	'aspen_validate_cb');			/* a validation call back */
}

function aspen_validate_cb($in) {
    // keep the definition in runtime, load as needed at admin time
require_once( dirname( __FILE__ ) . '/lib-admin.php' );

    return aspen_validate_all_options($in);
}

/*
    ================= nonce helpers =====================
*/
function aspen_submitted($submit_name) {
    // do a nonce check for each form submit button
    // pairs 1:1 with aspen_nonce_field
    $nonce_act = $submit_name.'_act';
    $nonce_name = $submit_name.'_nonce';

    if (isset($_POST[$submit_name])) {
	if (isset($_POST[$nonce_name]) && wp_verify_nonce($_POST[$nonce_name],$nonce_act)) {
	    return true;
	} else {
	    die("WARNING: invalid form submit detected ($submit_name). Probably caused by session time-out, or, rarely, a failed security check. Please contact AspenTheme.com if you continue to receive this message.");
	}
    } else {
	return false;
    }
}

function aspen_nonce_field($submit_name,$echo = true) {
    // pairs 1:1 with sumbitted
    // will be one for each form submit button

    return wp_nonce_field($submit_name.'_act',$submit_name.'_nonce',$echo);
}

// # PAGE WITH POSTS ==============================================================

function aspen_get_page() {
    /* get the current posts display number
      needed for when Page with Posts is front page
    */
    $paged = get_query_var('paged');
	if (!isset($paged) || empty($paged)) {
		$paged = 1;
	}
    $page = get_query_var( 'page' );
    if ( $page > 1)
	$paged = $page;
    return $paged;
}

function aspen_setup_post_args($args) {
   /* setup WP_Query arg list */

    $cats = aspen_get_page_categories();
    if (!empty($cats)) $args['cat'] = $cats;

    $tags = aspen_get_page_tags();
    if (!empty($tags)) $args['tag'] = $tags;

    $onepost = aspen_get_page_onepost();
    if (!empty($onepost)) $args['name'] = $onepost;

    $orderby = aspen_get_page_orderby();
    if (!empty($orderby)) $args['orderby'] = $orderby;

    $order = aspen_get_page_order();
    if (!empty($order)) $args['order'] = $order;

    $author_name = aspen_get_page_author();
    if (!empty($author_name)) {
	$nosp = str_replace(' ', '', $author_name);
	$id_list=str_replace(',','',$nosp);
	if (is_numeric($id_list)) {
	    $args['author'] = $author_name;
	} else {
	    $args['author_name'] = $author_name;
	}
    }

    $posts_per_page = aspen_get_page_posts_per();
    if (!empty($posts_per_page)) $args['posts_per_page'] = $posts_per_page;

    $post_type = aspen_get_per_page_value('pp_post_type');
    if ($post_type)
	$args['post_type'] = $post_type;

    if (aspen_is_checked_page_opt('pp_hide_sticky')) $args['ignore_sticky_posts'] = true;


    return $args;
}

function aspen_get_page_categories() {
    $cats = aspen_get_per_page_value('pp_category');
    if (empty($cats)) return '';
    // now convert slugs to ids
    return aspen_cat_slugs_to_ids($cats);
}

function aspen_cat_slugs_to_ids($cats) {
    if (empty($cats)) return '';
    // now convert slugs to numbers
    $cats = str_replace(' ','',$cats);
    $clist = explode(',',$cats);	// break into a list
    $cat_list = '';
    foreach ($clist as $slug) {
	$neg = 1;	// not negative
	if ($slug[0] == '-') {
	    $slug = substr($slug,1);	// zap the -
	    $neg = -1;
	}
	if (strlen($slug) > 0 && is_numeric($slug)) { // allow both slug and id
	    $cat_id = $neg * (int)$slug;
	    if ($cat_list == '') $cat_list = strval($cat_id);
	    else $cat_list .= ','.strval($cat_id);
	} else {
	    $cur_cat = get_category_by_slug($slug);
	    if ($cur_cat) {
		$cat_id = $neg * (int)$cur_cat->cat_ID;
		if ($cat_list == '') $cat_list = strval($cat_id);
		else $cat_list .= ','.strval($cat_id);
	    }
	}
    }
    if (empty($cat_list)) $cat_list='99999999';
    return $cat_list;
}

function aspen_get_page_tags() {
    $tags = aspen_get_per_page_value('pp_tag');
    if (empty($tags)) return '';
    return str_replace(' ','',$tags);
}
function aspen_get_page_onepost() {
    $the_post = aspen_get_per_page_value('pp_onepost');
    if (empty($the_post)) return '';
    return $the_post;
}
function aspen_get_page_orderby() {
    $orderby = aspen_get_per_page_value('pp_orderby');
    if (empty($orderby)) return '';

    if ($orderby == 'author' || $orderby == 'date' || $orderby == 'title' || $orderby == 'rand')
        return $orderby;
    aspen_page_posts_error('orderby must be author, date, title, or rand. You used: '. $orderby);
    return '';
}
function aspen_get_page_order() {
    $order = aspen_get_per_page_value('pp_sort_order');
    if (empty($order)) return '';
    if ($order == 'ASC' || $order == 'DESC')
        return $order;
    aspen_page_posts_error('order value must be ASC or DESC. You used: '. $order);
    return '';
}
function aspen_get_page_posts_per() {
    $ppp = aspen_get_per_page_value('pp_posts_per_page');
    if (empty($ppp)) return '';
    // now convert slugs to numbers
    return $ppp;
}
function aspen_get_page_author() {
    $author = aspen_get_per_page_value('pp_author');
    if (empty($author)) return '';
    return $author;
}


function aspen_add_q($q, $item, $tag='') {
    if ($item == '') return $q;

    if (!empty($q))
        return $q . '&' . $tag . $item;
    else
	return $tag . $item;
}

// # FILTERS ==============================================================

//  ============ validation filters ===============

function aspen_filter_textarea( $text ) {
    // virtually all option text input from Aspen can be code, and thus must not be
    // content filtered. Treat like code for now....
    return aspen_filter_code($text);
}

function aspen_esc_textarea($text) {
    echo esc_textarea(stripslashes($text));
}

function aspen_filter_code( $text ) {
    static $aspen_allowedadmintags = array(
		'address' => array(),
		'a' => array(
			'class' => array (),
			'href' => array (),
			'id' => array (),
			'title' => array (),
			'rel' => array (),
			'rev' => array (),
			'name' => array (),
			'target' => array()),
		'abbr' => array(
			'class' => array (),
			'title' => array ()),
		'acronym' => array(
			'title' => array ()),
		'article' => array(
			'align' => array (),
			'class' => array (),
			'dir' => array (),
			'lang' => array(),
			'style' => array (),
			'xml:lang' => array(),
		),
		'aside' => array(
			'align' => array (),
			'class' => array (),
			'dir' => array (),
			'lang' => array(),
			'style' => array (),
			'xml:lang' => array(),
		),
		'b' => array(),
		'big' => array(),
		'blockquote' => array(
			'id' => array (),
			'cite' => array (),
			'class' => array(),
			'lang' => array(),
			'xml:lang' => array()),
		'br' => array (
			'class' => array ()),
		'button' => array(
			'disabled' => array (),
			'name' => array (),
			'type' => array (),
			'value' => array ()),
		'caption' => array(
			'align' => array (),
			'class' => array ()),
		'cite' => array (
			'class' => array(),
			'dir' => array(),
			'lang' => array(),
			'title' => array ()),
		'code' => array (
			'style' => array()),
		'col' => array(
			'align' => array (),
			'char' => array (),
			'charoff' => array (),
			'span' => array (),
			'dir' => array(),
			'style' => array (),
			'valign' => array (),
			'width' => array ()),
		'del' => array(
			'datetime' => array ()),
		'dd' => array(),
		'details' => array(
			'align' => array (),
			'class' => array (),
			'dir' => array (),
			'lang' => array(),
			'open' => array (),
			'style' => array (),
			'xml:lang' => array(),
		),
		'div' => array(
			'align' => array (),
			'class' => array (),
			'dir' => array (),
			'lang' => array(),
			'style' => array (),
			'xml:lang' => array()),
		'dl' => array(),
		'dt' => array(),
		'em' => array(),
		'fieldset' => array(),
		'figure' => array(
			'align' => array (),
			'class' => array (),
			'dir' => array (),
			'lang' => array(),
			'style' => array (),
			'xml:lang' => array(),
		),
		'figcaption' => array(
			'align' => array (),
			'class' => array (),
			'dir' => array (),
			'lang' => array(),
			'style' => array (),
			'xml:lang' => array(),
		),
		'font' => array(
			'color' => array (),
			'face' => array (),
			'size' => array ()),
		'footer' => array(
			'align' => array (),
			'class' => array (),
			'dir' => array (),
			'lang' => array(),
			'style' => array (),
			'xml:lang' => array(),
		),
		'form' => array(
			'action' => array (),
			'accept' => array (),
			'accept-charset' => array (),
			'enctype' => array (),
			'method' => array (),
			'name' => array (),
			'target' => array ()),
		'h1' => array(
			'align' => array (),
			'class' => array (),
			'id'    => array (),
			'style' => array ()),
		'h2' => array (
			'align' => array (),
			'class' => array (),
			'id'    => array (),
			'style' => array ()),
		'h3' => array (
			'align' => array (),
			'class' => array (),
			'id'    => array (),
			'style' => array ()),
		'h4' => array (
			'align' => array (),
			'class' => array (),
			'id'    => array (),
			'style' => array ()),
		'h5' => array (
			'align' => array (),
			'class' => array (),
			'id'    => array (),
			'style' => array ()),
		'h6' => array (
			'align' => array (),
			'class' => array (),
			'id'    => array (),
			'style' => array ()),
		'header' => array(
			'align' => array (),
			'class' => array (),
			'dir' => array (),
			'lang' => array(),
			'style' => array (),
			'xml:lang' => array(),
		),
		'hgroup' => array(
			'align' => array (),
			'class' => array (),
			'dir' => array (),
			'lang' => array(),
			'style' => array (),
			'xml:lang' => array(),
		),
		'hr' => array (
			'align' => array (),
			'class' => array (),
			'noshade' => array (),
			'size' => array (),
			'width' => array ()),
		'i' => array(),
		'img' => array(
			'alt' => array (),
			'align' => array (),
			'border' => array (),
			'class' => array (),
			'height' => array (),
			'hspace' => array (),
			'longdesc' => array (),
			'vspace' => array (),
			'src' => array (),
			'style' => array (),
			'width' => array ()),
		'ins' => array(
			'datetime' => array (),
			'cite' => array ()),
		'kbd' => array(),
		'label' => array(
			'for' => array ()),
		'legend' => array(
			'align' => array ()),
		'li' => array (
			'align' => array (),
			'class' => array ()),
		'menu' => array (
			'class' => array (),
			'style' => array (),
			'type' => array ()),
		'nav' => array(
			'align' => array (),
			'class' => array (),
			'dir' => array (),
			'lang' => array(),
			'style' => array (),
			'xml:lang' => array(),
		),
		'p' => array(
			'class' => array (),
			'align' => array (),
			'dir' => array(),
			'lang' => array(),
			'style' => array (),
			'xml:lang' => array()),
		'pre' => array(
			'style' => array(),
			'width' => array ()),
		'q' => array(
			'cite' => array ()),
		's' => array(),
		//'script' => array(),	// only admin or multi-site super-admin can add scripts
		'span' => array (
			'class' => array (),
			'dir' => array (),
			'align' => array (),
			'lang' => array (),
			'style' => array (),
			'title' => array (),
			'xml:lang' => array()),
		'section' => array(
			'align' => array (),
			'class' => array (),
			'dir' => array (),
			'lang' => array(),
			'style' => array (),
			'xml:lang' => array(),
		),
		'strike' => array(),
		'strong' => array(),
		'style' => array(),
		'sub' => array(),
		'summary' => array(
			'align' => array (),
			'class' => array (),
			'dir' => array (),
			'lang' => array(),
			'style' => array (),
			'xml:lang' => array(),
		),
		'sup' => array(),
		'table' => array(
			'align' => array (),
			'bgcolor' => array (),
			'border' => array (),
			'cellpadding' => array (),
			'cellspacing' => array (),
			'class' => array (),
			'dir' => array(),
			'id' => array(),
			'rules' => array (),
			'style' => array (),
			'summary' => array (),
			'width' => array ()),
		'tbody' => array(
			'align' => array (),
			'char' => array (),
			'charoff' => array (),
			'valign' => array ()),
		'td' => array(
			'abbr' => array (),
			'align' => array (),
			'axis' => array (),
			'bgcolor' => array (),
			'char' => array (),
			'charoff' => array (),
			'class' => array (),
			'colspan' => array (),
			'dir' => array(),
			'headers' => array (),
			'height' => array (),
			'nowrap' => array (),
			'rowspan' => array (),
			'scope' => array (),
			'style' => array (),
			'valign' => array (),
			'width' => array ()),
		'textarea' => array(
			'cols' => array (),
			'rows' => array (),
			'disabled' => array (),
			'name' => array (),
			'readonly' => array ()),
		'tfoot' => array(
			'align' => array (),
			'char' => array (),
			'class' => array (),
			'charoff' => array (),
			'valign' => array ()),
		'th' => array(
			'abbr' => array (),
			'align' => array (),
			'axis' => array (),
			'bgcolor' => array (),
			'char' => array (),
			'charoff' => array (),
			'class' => array (),
			'colspan' => array (),
			'headers' => array (),
			'height' => array (),
			'nowrap' => array (),
			'rowspan' => array (),
			'scope' => array (),
			'valign' => array (),
			'width' => array ()),
		'thead' => array(
			'align' => array (),
			'char' => array (),
			'charoff' => array (),
			'class' => array (),
			'valign' => array ()),
		'title' => array(),
		'tr' => array(
			'align' => array (),
			'bgcolor' => array (),
			'char' => array (),
			'charoff' => array (),
			'class' => array (),
			'style' => array (),
			'valign' => array ()),
		'tt' => array(),
		'u' => array(),
		'ul' => array (
			'class' => array (),
			'style' => array (),
			'type' => array ()),
		'ol' => array (
			'class' => array (),
			'start' => array (),
			'style' => array (),
			'type' => array ()),
		'var' => array ());
    // virtually all option input from Aspen can be code, and thus must not be
    // content filtered. The utf8 check is about the extent of it, although even
    // that is more restrictive than the standard text widget uses.
    // Note: this check also works OK for simple checkboxes/radio buttons/selections,
    // so it is ok to blindly pass those options in here, too.
    $noslash = trim(stripslashes($text));
    if ($noslash == ' ') return '';

    if ( current_user_can('unfiltered_html') ) {
        return wp_check_invalid_utf8( $noslash );
    } else if (current_user_can('add_users')) {
	return wp_kses( $text , $aspen_allowedadmintags);
    } else {
	return stripslashes( wp_filter_post_kses( addslashes($text) ) ); // wp_filter_post_kses() expects slashed
    }
}

// # MISC ==============================================================
function aspen_media_lib_button($fillin = '') {
?>
&nbsp;&larr;&nbsp;<a style='text-decoration:none;' href="javascript:aspen_media_lib('<?php echo $fillin;?>');" ><img src="<?php echo esc_url(aspen_relative_url('images/theme/media-button.png')); ?>" title="Select image from Media Library. Click 'Insert into Post' to paste url here." alt="media" /></a>
<?php
}


function aspen_site($sub='', $site = 'http://aspentheme.com', $title = '') {
    if ($site == '') $site = 'http://aspentheme.com';
    if ($title == '') $title = $site;
    echo '<a href="' . esc_url($site . $sub) . '" target="_blank" title="' . $title . '">';
}

function aspen_post_count_clear() {
    global $aspen_cur_post_count;
    $aspen_cur_post_count = 0;
}

function aspen_post_count_bump() {
    global $aspen_cur_post_count;
    $aspen_cur_post_count++;
}

function aspen_post_count() {
    global $aspen_cur_post_count;
    return $aspen_cur_post_count;
}

function aspen_post_count_class($hidecount = false) {
    global $aspen_cur_post_count;
    global $aspen_sticky;

    if ($aspen_sticky)	// For page with posts - re-ordering sticky posts
	$postclass = 'sticky ';
    else
	$postclass = ' ';

    if ($aspen_cur_post_count == 0 || $hidecount) return $postclass;
    return $postclass . 'post-' . (($aspen_cur_post_count % 2) ? 'odd' : 'even') . ' post-order-' . $aspen_cur_post_count;
}

function aspen_hide_page_title() {
    if (aspen_is_checked_page_opt('pp_hide_page_title')) {
	echo ' aspen-hide';	// is included in a class=
    }
}

function aspen_allow_multisite() {
    // return true if it is allowed to use on MultiSite

    $restrict =  (defined('ASPEN_MULTISITE_RESTRICT_OPTIONS')) ? ASPEN_MULTISITE_RESTRICT_OPTIONS : false;

    return ((!is_multisite() && current_user_can('install_themes'))
	|| (is_multisite() && current_user_can('manage_network_themes'))
	|| !$restrict);
}

function aspen_help_link($link, $info) {
    $t_dir = aspen_relative_url('');
    $pp_help =  '<a href="' . esc_url($t_dir . 'help/' . $link) . '" target="_blank" title="' . $info . '">'
		. '<img class="entry-cat-img" src="' . esc_url($t_dir . 'images/icons/help-1.png') . '" style="position:relative; top:4px; padding-left:4px;" title="Click for help" alt="Click for help" /></a>';
    echo($pp_help);
}

function aspen_html_br() {
    echo ' <br /> ';
}

function aspen_compact_post() {
    return aspen_getopt('compact_post_formats') || aspen_is_checked_page_opt('pp_pwp_compact');
}

function aspen_get_first_post_image($content='') {
    if (has_post_thumbnail()) {
	$img = wp_get_attachment_image_src( get_post_thumbnail_id( ), 'medium' );
	return '<img class="format-image-img" src="' . esc_url($img[0]) . '" "alt="post image" />';
    }

    if ($content == '')
	$content = do_shortcode(apply_filters( 'the_content', get_the_content('')));	// pick up wp 3.6 post format meta image
    if (preg_match('/<img[^>]+>/i',$content, $images)) {	// grab <img>s
	$src = '';
	if (preg_match('/src="([^"]*)"/', $images[0], $srcs)) {
	    $src = $srcs[0];
	} else if (preg_match("/src='([^']*)'/", $images[0], $srcs)) {
	    $src = $srcs[0];
	}
	return '<img class="format-image-img" ' . $src . 'alt="post image" />';
    } else {
	return '';
    }
}

function aspen_compact_link($check = '') {
    if ($check == 'check' && !aspen_is_checked_post_opt('pp_post_add_link'))
	return;

    $link_img =  aspen_relative_url('') . 'images/icons/expand.png';
?>
    <div><a href="<?php esc_url(the_permalink()); ?>" title="<?php the_title_attribute( 'echo=1' ); ?>" rel="bookmark">
<img src="<?php echo esc_url($link_img); ?>" /></a></div>
<?php
}

/* Breadcrumbs
 * Credit: Dimox
 *	http://dimox.net/wordpress-breadcrumbs-without-a-plugin/
 */
if (!function_exists('aspen_breadcrumb')) {
function aspen_breadcrumb($echo = true, $wrap = 'breadcrumbs') {
    $bc = '';

    $containerBefore = '<span id="' . $wrap . '">';
    $containerAfter = '</span>';
    $containerCrumb = '<span class="crumbs">';
    $containerCrumbEnd = '</span>';
    $delimiter = '&rarr;'; //' &raquo; ';
    $name = aspen_getopt('info_home_label') ? aspen_getopt('info_home_label') : __('Home','aspen'); //text for the 'Home' link
    $blogname = aspen_getopt('info_blog_label') ? aspen_getopt('info_blog_label') : __('Blog','aspen'); //text for the 'Blog' link
    $baseLink = '';
    $hierarchy = '';
    $currentLocation = '';
    $currentBefore = '<span class="bcur-page">';
    $currentAfter = '</span>';
    $currentLocationLink = '';
    $crumbPagination = '';

    global $post;

    $bc = '';
    // Output the Base Link
    if (is_front_page() ) {
	$bc .= $currentBefore . $name . $currentAfter;
    } else {
	$home = home_url('/');
	$baseLink =  '<a href="' . esc_url($home) . '">' . $name . '</a>';
	$bc .= $baseLink;
    }
    // If static Page as Front Page, and on Blog Posts Index
    if ( is_home() && ( 'page' == get_option( 'show_on_front' ) ) ) {
	$bc .= $delimiter . $currentBefore . $blogname . $currentAfter;
    }
    // Aspen mod: check 'page_for_posts' when using PwP without setting blog host page
    // If static Page as Front Page, and on Blog, output Blog link
    if ( ! is_home() && ! is_page() && ! is_front_page() && ( 'page' == get_option( 'show_on_front' ) ) && get_option( 'page_for_posts' ) ) {
	$blogpageid = get_option( 'page_for_posts' );
	$bloglink = '<a href="' . esc_url(get_permalink( $blogpageid )) . '">' .  $blogname . '</a>';
	$bc .= $delimiter . $bloglink;
    }

    // Define Category Hierarchy Crumbs for Category Archive
    if ( is_category() ) {
	global $wp_query;
	if (is_object($wp_query->get_queried_object())) {
	    $cat_obj = $wp_query->get_queried_object();
	    $thisCat = $cat_obj->term_id;
	    $thisCat = get_category($thisCat);
	    $parentCat = get_category($thisCat->parent);
	    if ($thisCat->parent != 0) {
		$hierarchy = ( $delimiter . __( 'Categories','aspen') . ' ' . get_category_parents( $parentCat, TRUE, $delimiter ) );
	    } else {
		$hierarchy = $delimiter . __( 'Categories','aspen') . ' ';
	    }
	} else {
	    $hierarchy = '';
	}
	// Set $currentLocation to the current category
	$currentLocation = single_cat_title( '' , FALSE );

    }
    // Define Crumbs for Day/Year/Month Date-based Archives
    elseif ( is_date() ) {
	// Define Year/Month Hierarchy Crumbs for Day Archive
	if  ( is_day() ) {
	    $date_string = '<a href="' . esc_url(get_year_link(get_the_time('Y'))) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ' . '<a href="' . get_month_link(get_the_time('Y'),get_the_time('m')) . '">' . get_the_time('F') . '</a> ';
	    $date_string .= $delimiter . ' ';
	    $currentLocation = get_the_time('d');
	}
	// Define Year Hierarchy Crumb for Month Archive
	elseif ( is_month() ) {
	    $date_string = '<a href="' . esc_url(get_year_link(get_the_time('Y'))) . '">' . get_the_time('Y') . '</a> ';
	    $date_string .= $delimiter . ' ';
	    $currentLocation = get_the_time('F');
	}
	// Set CurrentLocation for Year Archive
	elseif ( is_year() ) {
	    $date_string = '';
	    $currentLocation = get_the_time('Y');
	}
	$hierarchy = $delimiter . __( 'Published','aspen') . ' ' . $date_string ;
    }
    // Define Category Hierarchy Crumbs for Single Posts
    elseif ( is_single() && !is_attachment() ) {
	$cats = get_the_category();
	if ($cats)
	    $cur_cat = $cats[0];
	else
	    $cur_cat = '';
	foreach ($cats as $cat) {
	    $children = get_categories( array ('parent' => $cat->term_id ));
	    if (count($children) == 0) {
		$cur_cat = $cat;
		break;
	    }
	}
	if ($cur_cat) {
	    $hierarchy = $delimiter . get_category_parents( $cur_cat, TRUE, $delimiter );
	} else {
	    $hierarchy = $delimiter . '';
	}
	    // Note: get_the_title() is filtered to output a
	    // default title if none is specified
	    $currentLocation = get_the_title();

    }
	// Define Category and Parent Post Crumbs for Post Attachments
    elseif ( is_attachment() ) {
	$parent = get_post($post->post_parent);
	$cat_parents = '';
	if ( get_the_category($parent->ID) ) {
	    $cat = get_the_category($parent->ID);
	    $cat = $cat ? $cat[0] : '';
	    $cat_parents = get_category_parents( $cat, TRUE, $delimiter );
	}
	$hierarchy = $delimiter . $cat_parents . '<a href="' . esc_url(get_permalink($parent)) . '">' . $parent->post_title . '</a> ' . $delimiter;
	// Note: Titles are forced for attachments; the
	// filename will be used if none is specified
	$currentLocation = get_the_title();
    }
    // Define Current Location for Parent Pages
    elseif ( ! is_front_page() && is_page() && ! $post->post_parent ) {
	$hierarchy = $delimiter;
	// Note: get_the_title() is filtered to output a
	// default title if none is specified
	$currentLocation = get_the_title();
    }
    // Define Parent Page Hierarchy Crumbs for Child Pages
    elseif ( ! is_front_page() && is_page() && $post->post_parent ) {
	$parent_id  = $post->post_parent;
	$breadcrumbs = array();
	while ($parent_id) {
	    $page = get_page($parent_id);
	    $breadcrumbs[] = '<a href="' . esc_url(get_permalink($page->ID)) . '">' . get_the_title($page->ID) . '</a>';
	    $parent_id  = $page->post_parent;
	}
	$breadcrumbs = array_reverse($breadcrumbs);
	foreach ($breadcrumbs as $crumb) {
	    $hierarchy = $hierarchy . $delimiter . $crumb;
	}
	$hierarchy = $hierarchy . $delimiter;
	// Note: get_the_title() is filtered to output a
	// default title if none is specified
	$currentLocation = get_the_title();
    }
	// Define current location for Search Results page
    elseif ( is_search() ) {
	$hierarchy = $delimiter . __('Search Results','aspen') . ' ';
	$currentLocation = get_search_query();
    }
	// Define current location for Tag Archives
    elseif ( is_tag() ) {
	$hierarchy = $delimiter . __( 'Tags','aspen') . ' ';
	$currentLocation = single_tag_title( '' , FALSE );
    }
	// Define current location for Author Archives
    elseif ( is_author() ) {
	$hierarchy = $delimiter . __( 'Author','aspen') . ' ';
	$currentLocation = get_the_author_meta( 'display_name', get_query_var( 'author' ) );
    }
	// Define current location for 404 Error page
    elseif ( is_404() ) {
	$hierarchy = $delimiter . __( '404','aspen') . ' ';
	$currentLocation = __( 'Page not found','aspen');
    }
	// Define current location for Post Format Archives
    elseif ( get_post_format() && ! is_home() ) {
	$hierarchy = $delimiter . __( 'Post Formats','aspen') . ' ';
	$currentLocation = get_post_format_string( get_post_format() ) . 's';
    }

// Build the Current Location Link markup
    $currentLocationLink = $currentBefore . $currentLocation . $currentAfter;

// Define breadcrumb pagination

// Define pagination for paged Archive pages
    if ( get_query_var('paged') && ! function_exists( 'wp_paginate' ) ) {
      $crumbPagination = ' - ' . __('Page','aspen') . ' ' . get_query_var('paged');
    }

 // Define pagination for Paged Posts and Pages
    if ( get_query_var('page') ) {
      $crumbPagination = ' - ' . __('Page','aspen') . ' ' . get_query_var('page') . ' ';
    }

// Output the resulting Breadcrumbs

    $bc .= $hierarchy; // Output Hierarchy
    $bc .= $currentLocationLink; // Output Current Location
    $bc .= $crumbPagination; // Output page number, if Post or Page is paginated

    if (is_rtl()) {
	$list = explode($delimiter,$bc);	// split on the arrow
	$list = array_reverse($list);
	$larrow = '&larr;';
	$bc = implode($larrow,$list);
    }
    // Wrap crumbs
    $bc = $containerBefore . $containerCrumb . $bc . $containerCrumbEnd . $containerAfter;

    if ($echo) echo $bc;
    else return $bc;
    return '';
}
}

/**
 * Paginate Archive Index Page Links
 *
 * Code based on codex examples
 */

if (!function_exists('aspen_get_paginate_archive_page_links')) {
function aspen_get_paginate_archive_page_links( $type = 'plain', $endsize = 1, $midsize = 1 ) {
		global $wp_query, $wp_rewrite;

	$wp_query->query_vars['paged'] > 1 ? $current = $wp_query->query_vars['paged'] : $current = 1;

	// Sanitize input argument values
	if ( ! in_array( $type, array( 'plain', 'list', 'array' ) ) ) $type = 'plain';
	$endsize = (int) $endsize;
	$midsize = (int) $midsize;

	$big = 999999999;	// from codex - an unlikely number, then str_replace. Makes archive no permalinks work

	if (is_search()) { // works for search on non-permalinks...
	    $base = '%_%';
	} else {
	    $base = str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) );
	}

	// Setup argument array for paginate_links()
	$pagination = array(
		'base' =>  $base,
		'format' => '?paged=%#%',
		'total' => $wp_query->max_num_pages,
		'current' => $current,
		'show_all' => false,
		'end_size' => $endsize,
		'mid_size' => $midsize,
		'type' => $type,
		'prev_text' => '&lt;&lt;',
		'next_text' => '&gt;&gt;'
	);

	if ( !empty($wp_query->query_vars['s']) )
		$pagination['add_args'] = array( 's' => get_query_var( 's' ) );

	return paginate_links( $pagination );
}
}

// # MOBILE ===================================================================

function aspen_use_sf() {
    return aspen_getopt('use_superfish');
}

// ============================ MOBILE MENU ======================================
function aspen_mobile_menu_bar($mobile_id, $menu_id, $nohome = '') {
    // alternatives for slide open menu
    $home = aspen_getopt('mobile_slide_home_label');
    if (!$home) $home = __('Home','aspen');

    $menu_label = ($nohome != 'no-home') ? aspen_getopt('mobile_slide_nav_label') :
	aspen_getopt('mobile_slide_nav_label_sec')    ;	// use 'mobile_slide_nav_label_sec' for top menu

    if (!$menu_label) $menu_label = __('Menu','aspen');

    $img_hide = $menu_label . ' &uarr;';
    $img_show = $menu_label . ' &darr;';
    $img_toggle = $img_show;
?>
<div id="<?php echo $mobile_id; ?>" class="mobile_menu_bar" style="padding:5px 10px 5px 10px;clear:both;">
    <div style="margin-bottom:20px;">
<?php
    if ($nohome != 'no-home') {
?>
<span style="float:left;margin-left:15px;">
    <a href="<?php echo esc_url( home_url( '/' ) ); ?>" title="<?php echo esc_attr( get_bloginfo( 'name', 'display' ) ); ?>" rel="home"><?php echo $home; ?></a></span>
<?php
    }
?>
    <span class="mobile-menu-link"><a href="javascript:void(null);" onclick="aspen_ToggleMenu(document.getElementById('<?php echo $menu_id; ?>'), this, '<?php echo $img_show; ?>', '<?php echo $img_hide; ?>')"><?php echo $img_toggle; ?></a></span></div>
</div>
<?php
}

// # OTHER UTILS ==============================================================

if (!function_exists('aspen_global')) {
    function aspen_globals($glb) {
    return isset($GLOBALS[$glb]) ? $GLOBALS[$glb] : '';
}
}

function aspen_relative_url($subpath){
    // generate a relative URL from the site's root
    return parse_url(trailingslashit(get_template_directory_uri()) . $subpath,PHP_URL_PATH);
}

function aspen_filter_css($css) {
    // filter user added CSS for root relative file paths

    if (strpos($css, '%template_directory%') !== false)
	$css = str_replace('%template_directory%',
		parse_url(trailingslashit(get_template_directory_uri()),PHP_URL_PATH) ,
		$css);
    if (strpos($css, '%stylesheet_directory%') !== false)
	$css = str_replace('%stylesheet_directory%',
		parse_url(trailingslashit(get_stylesheet_directory_uri()),PHP_URL_PATH) ,
		$css);
    if (strpos($css, '%addon_directory%') !== false)
	$css = str_replace('%addon_directory%' ,
		parse_url(trailingslashit(aspen_f_uploads_base_url()) . 'aspen-subthemes/addon-subthemes/',PHP_URL_PATH),
		$css);

    return $css;
}
add_filter('aspen_css','aspen_filter_css');

// =============================== transient options =============================
if (!function_exists('aspen_globals')) {
    function aspen_globals($glb) {
    return isset($GLOBALS[$glb]) ? $GLOBALS[$glb] : '';
}
}

if (!function_exists('aspen_t_set')) {
    function aspen_t_set($opt, $val) {
    $GLOBALS['aspen_temp_opts'][$opt] = $val;
}
}

if (!function_exists('aspen_t_get')) {
    function aspen_t_get($opt) {
    return isset($GLOBALS['aspen_temp_opts'][$opt]) ? $GLOBALS['aspen_temp_opts'][$opt] : '';
}
}

if (!function_exists('aspen_t_clear')) {
    function aspen_t_clear($opt) {
    unset($GLOBALS['aspen_temp_opts'][$opt]);
}
}

if (!function_exists('aspen_t_clear_all')) {
    function aspen_t_clear_all() {
    unset($GLOBALS['aspen_temp_opts']);
}
}

// # MASONRY ==============================================================

function aspen_masonry($act = false) {
    global $aspen_cur_template;

    $is_pt = false;

    if (strpos($aspen_cur_template,'paget-posts.php') !== false) {
	    $is_pt = true;
    }
    if (is_singular() && ! $is_pt) {	// don't emit anything for non-blog pages
	return false;
    }

    $usem = aspen_get_per_page_value('pp_pwp_masonry');	// per page to override...
    if ($usem < 2)
	$usem = aspen_getopt('masonry_cols');
    if ($usem < 2) {
	return false;
    }
    switch ($act) {
	case 'begin-posts':	// wrap all posts
	    echo '<div id="blog-posts" class="cf">';
	    break;
	case 'begin-post' :	// wrap one post
	    global $aspen_cur_post_id;
	    $aspen_cur_post_id = get_the_ID();// we need to know now
	    if (aspen_is_checked_post_opt('pp_masonry_span2')) {	// span 2 columns
		$usem .= '-span-2';
	    }
	    echo '<div class="cf blog-post blog-post-cols-' . $usem . '">';	// for masonry
	    break;
	case 'end-post':	// end of one post
	    echo "</div> <!-- .blog-post -->\n";
	    break;
	case 'end-posts':	// end of all posts
	    echo '</div> <!-- #blog-posts -->' . "\n";
	    break;
	case 'invoke-code':
?>
<script type='text/javascript'>
jQuery(function(){var $container=jQuery('#blog-posts');$container.imagesLoaded(function(){
$container.masonry({itemSelector:'.blog-post'});});});
jQuery(window).resize(function(){jQuery('#blog-posts').masonry({itemSelector:'.blog-post'});});
</script>
<?php
	    break;

	case 'enqueue-script':
	    $url =  trailingslashit(get_template_directory_uri());
	    wp_enqueue_script('aspenMasonry', $url.'js/masonry/jquery.masonry.min.js',array(),ASPEN_VERSION);
	    break;
    }	// end switch
    return true;
}

// # PRO STUBS ==============================================================


function aspen_opt_cache($switch = null) {
    // load the options cache - only aspen_settings in basic version
    // $switch is used by theme switcher plugin
    global $aspen_opts_cache;

    if (isset($switch)) {
	$aspen_opts_cache = $switch;
    } else if (!$aspen_opts_cache) {
	$aspen_opts_cache = apply_filters('aspen_switch_theme',
	    get_option(apply_filters('aspen_options','aspen_settings') ,array()));	// start with the default
    }
}

function aspen_t_($t) {
    return $t;
}

require_once( dirname( __FILE__ ) . '/fileio.php' );
?>