<?php
/**
 * The Better Gallery shortcode, courtesy of WordPress Core
 *
 * Wanted to extend our Bootstrap Slideshow so that you could put in Post IDs and get back a slideshow.
 * Basically the same thing that the default slideshow does, so why not use that!
 *
 * @since 1.0
 *
 * @param array $attr Attributes of the shortcode.
 * @return string HTML content to display gallery.
 */
function make_new_gallery_shortcode($attr) {
    $post = get_post();

	static $instance = 0;
	$instance++;

	if ( ! empty( $attr['ids'] ) ) {
		// 'ids' is explicitly ordered, unless you specify otherwise.
		if ( empty( $attr['orderby'] ) )
			$attr['orderby'] = 'post__in';
		$attr['include'] = $attr['ids'];
	}

	// We're trusting author input, so let's at least make sure it looks like a valid orderby statement
	if ( isset( $attr['orderby'] ) ) {
		$attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] );
		if ( !$attr['orderby'] )
			unset( $attr['orderby'] );
	}

	extract(shortcode_atts(array(
		'order'      => 'ASC',
		'orderby'    => 'menu_order ID',
		'id'         => $post->ID,
		'itemtag'    => 'dl',
		'icontag'    => 'dt',
		'captiontag' => 'dd',
		'columns'    => 3,
		'size'       => 'thumbnail',
		'include'    => '',
		'exclude'    => ''
	), $attr));


	$rand = mt_rand( 0, $id );

	$id = intval($id);
	if ( 'RAND' == $order )
		$orderby = 'none';

	if ( !empty($include) ) {
		$_attachments = get_posts( array('include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );

		$attachments = array();
		foreach ( $_attachments as $key => $val ) {
			$attachments[$val->ID] = $_attachments[$key];
		}
	} elseif ( !empty($exclude) ) {
		$attachments = get_children( array('post_parent' => $id, 'exclude' => $exclude, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );
	} else {
		$attachments = get_children( array('post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );
	}

	if ( empty($attachments) )
		return '';

	$output = '<div id="myCarousel-' . $rand . '" class="carousel slide" data-interval=""><div class="carousel-inner">';

	$i = 0;
	foreach( $attachments as $id => $attachment ) {
		$i++;
		if ($i == 1) {
			$output .= '<div class="item active">';
		} else {
			$output .= '<div class="item">';
		}
		$output .= wp_get_attachment_link( $attachment->ID, 'medium');
		if (isset($attachment->post_title)) {
			$output .= '<div class="carousel-caption">';
			$output .= '<h4>' . $attachment->post_title . '</h4>';
			if (isset($attachment->post_excerpt)) {
				$output .= Markdown( $attachment->post_excerpt );
			}
			$output .= '</div>';

		}
		$output .= '</div>';

	} //foreach
	$output .= '</div>
		<a class="left carousel-control" href="#myCarousel-' . $rand . '" data-slide="prev">‹</a>
		<a class="right carousel-control" href="#myCarousel-' . $rand . '" data-slide="next">›</a>
	</div>';
	$output .= '<p class="pull-right"><span class="label viewall" style="cursor:pointer">View All</span></p>';
	$output .= '
		<script>
			jQuery(document).ready(function(){
				jQuery(".viewall").click(function() {
					jQuery(".carousel-inner").removeClass("carousel-inner");
					googletag.pubads().refresh();
					_gaq.push([\'_trackPageview\']);
					urlref = location.href;
					PARSELY.beacon.trackPageView({
						url: urlref,
						urlref: urlref,
						js: 1,
						action_name: "Next Slide"
					});
					jQuery(this).addClass(\'hide\');
					return true;
				})
			});
		</script>
	';
	$output .= '<div class="clearfix"></div>';
	return $output;
}

add_shortcode( 'new_gallery', 'make_new_gallery_shortcode' );