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Editing: essential-grid.class.php

<?php
/**
 * Essential Grid.
 *
 * @package   Essential_Grid
 * @author    ThemePunch <info@themepunch.com>
 * @link      http://www.themepunch.com/essential/
 * @copyright 2018 ThemePunch
 */

if( !defined( 'ABSPATH') ) exit();

$esg_c_sort_direction = 'ASC';
$esg_c_sort_handle = 'title';
$esg_grid_serial = 0;
$esg_is_inited = false;
$esg_grids_cache = array();

class Essential_Grid {

/**
	 * Plugin version, used for cache-busting of style and script file references.
	 */
	const VERSION = '3.0.6';
	const TABLE_GRID = 'eg_grids';
	const TABLE_ITEM_SKIN = 'eg_item_skins';
	const TABLE_ITEM_ELEMENTS = 'eg_item_elements';
	const TABLE_NAVIGATION_SKINS = 'eg_navigation_skins';

private $grid_api_name = null;
	private $grid_div_name = null;
	private $grid_id = 0; //set to 0 at beginning for quick grids @since 2.0.2
	private $grid_name = null;
	private $grid_handle = null;
	private $grid_params = array();
	private $grid_postparams = array();
	private $grid_layers = array();
	private $grid_settings = array();
	private $grid_last_mod = '';
	private $grid_inline_js = '';
	private $is_gallery = false;

public $custom_settings = null;
	public $custom_layers = null;
	public $custom_images = null;
	public $custom_posts = null;
	public $custom_special = null;

//other changings
	private $filter_by_ids = array();
	private $load_more_post_array = array();

private $dev_mode		 = false;

/**
	 * Unique identifier for the plugin.
	 * The variable name is used as the text domain when internationalizing strings of text.
	 */
	protected $plugin_slug = 'essential-grid';

/**
	 * Instance of this class.
	 */
	protected static $instance = null;

/**
	 * Initialize the plugin by setting localization and loading public scripts
	 * and styles.
	 */
	public function __construct() {
		global $esg_is_inited;

if(!$esg_is_inited){

$esg_is_inited = true;

// Load plugin text domain
			add_action( 'init', array( $this, 'load_plugin_textdomain' ) );

$add_cpt = apply_filters('essgrid_set_cpt', get_option('tp_eg_enable_custom_post_type', 'false'));

if($add_cpt == 'true' || $add_cpt === true)
				add_action( 'init', array( $this, 'register_custom_post_type' ) );

// Load public-facing style sheet and JavaScript.
			add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_styles' ) );
			add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ) );

add_action('wp_ajax_Essential_Grid_Front_request_ajax', array($this, 'on_front_ajax_action'));
			add_action('wp_ajax_nopriv_Essential_Grid_Front_request_ajax', array($this, 'on_front_ajax_action')); //for not logged in users

// Post Like
			add_action('wp_ajax_nopriv_ess_grid_post_like', array($this,'ess_grid_post_like'));
			add_action('wp_ajax_ess_grid_post_like', array($this,'ess_grid_post_like'));

//Gallery
			$gallery = get_option('tp_eg_overwrite_gallery','');
			if( !empty($gallery) && $gallery != "off"  ){
				add_action('init', array($this, 'remove_wp_gallery'));
				add_action('init', array($this,'add_ess_grid_gallery'));
			}
			add_filter('post_gallery', array($this,'use_ess_grid_gallery'), 10, 2);

add_filter( 'render_block', array($this,'gallery_addon_gutenberg_block_filter'), 10, 2);

//Woo Add to Cart Updater
			add_filter('woocommerce_add_to_cart_fragments', array('Essential_Grid_Woocommerce','woocommerce_header_add_to_cart_fragment'));

// 2.2 lightbox post content
			add_filter('essgrid_lightbox_post_content', array($this, 'on_lightbox_post_content'), 10, 2);

}
	}

/**
	 * Return the plugin slug.
	 * @return    Plugin slug variable.
	 */
	public function get_plugin_slug() {
		return $this->plugin_slug;
	}

/**
	 * Return an instance of this class.
	 * @return    object    A single instance of this class.
	 */
	public static function get_instance() {

// If the single instance hasnt been set, set it now.
		if ( null == self::$instance ) {
			self::$instance = new self;
		}

return self::$instance;
	}

/**
	 * Load the plugin text domain for translation.
	 */
	public function load_plugin_textdomain() {

$domain = $this->plugin_slug;
		$locale = apply_filters('plugin_locale', get_locale(), $domain );

load_textdomain( $domain, trailingslashit( WP_LANG_DIR ) . $domain . '/' . $domain . '-' . $locale . '.mo' );

load_plugin_textdomain( $domain, FALSE, dirname(dirname(plugin_basename( __FILE__ ))) . '/languages/' );
		//load_plugin_textdomain( $domain, FALSE, basename( dirname( __FILE__ ) ) . '/languages/' );

do_action('essgrid_load_plugin_textdomain', $domain);
	}

/**
	 * Register and enqueue public-facing style sheet.
	 */
	public function enqueue_styles() {

$use_cache = (get_option('tp_eg_use_cache', 'false') == 'true') ? true : false;

wp_register_style($this->plugin_slug . '-plugin-settings', EG_PLUGIN_URL . 'public/assets/css/settings.css', array(), self::VERSION);
		wp_enqueue_style( $this->plugin_slug .'-plugin-settings' );

$font = new ThemePunch_Fonts();
		//$font->register_fonts();
		$font->register_icon_fonts("public");

wp_register_style('themepunchboxextcss', EG_PLUGIN_URL . 'public/assets/css/jquery.esgbox.min.css', array(), self::VERSION);

// Enqueue Lightbox Style/Script
		if($use_cache){
			wp_enqueue_style('themepunchboxextcss');
		}

do_action('essgrid_enqueue_styles', $use_cache, self::VERSION);

}

/**
	 * Register and enqueues public-facing JavaScript files.
	 */
	public function enqueue_scripts() {
		global $esg_dev_mode;
		
		$use_cache = (get_option('tp_eg_use_cache', 'false') == 'true') ? true : false;
		$js_to_footer = (get_option('tp_eg_js_to_footer', 'false') == 'true') ? true : false;

wp_enqueue_script( 'jquery' );		
		$waitfor = array( 'jquery' );

if(get_option('tp_eg_use_lightbox') !== 'disabled') {
			if ($esg_dev_mode) {
				wp_register_script( 'themepunchboxext', EG_PLUGIN_URL . 'public/assets/js/dev/esgbox.js', array('jquery'), self::VERSION, $js_to_footer);
			} else {
				wp_register_script( 'themepunchboxext', EG_PLUGIN_URL . 'public/assets/js/esgbox.min.js', array('jquery'), self::VERSION, $js_to_footer);
			}
		}
		
		global $wp_scripts;
		/**
		 * dequeue tp-tools to make sure that always the latest is loaded
		 **/
		if(isset($wp_scripts->registered) && isset($wp_scripts->registered['tp-tools']) && isset($wp_scripts->registered['tp-tools']->ver)){
			if(version_compare($wp_scripts->registered['tp-tools']->ver, ESG_TP_TOOLS, '<')){
				wp_deregister_script('tp-tools');
				wp_dequeue_script('tp-tools');
			}
		}
		
		wp_register_script( 'tp-tools', EG_PLUGIN_URL . 'public/assets/js/rbtools.min.js', $waitfor, ESG_TP_TOOLS, $js_to_footer );

if ($esg_dev_mode) {
			wp_register_script( $this->plugin_slug . '-essential-grid-script', EG_PLUGIN_URL . 'public/assets/js/dev/essential-grid.js', array( 'jquery', 'tp-tools' ), self::VERSION, $js_to_footer );
		} else {
			wp_register_script( $this->plugin_slug . '-essential-grid-script', EG_PLUGIN_URL . 'public/assets/js/esg.min.js', array( 'jquery', 'tp-tools' ), self::VERSION, $js_to_footer );
		}

do_action('essgrid_enqueue_scripts', $use_cache, self::VERSION, $js_to_footer);
	}

/**
	 * Register Shortcode
	 */
	public static function register_shortcode($args, $mid_content=null){
		//$dbg = new EssGridMemoryUsageInformation();
		//$dbg->setStart();
		//$dbg->setMemoryUsage('Before ShortCode');

$args = apply_filters('essgrid_register_shortcode_pre', $args);

$caching = get_option('tp_eg_use_cache', 'false');
		$use_cache = $caching == 'true' ? true : false;

// Enqueue Scripts
		wp_enqueue_script( 'tp-tools' );
		wp_enqueue_script( 'essential-grid-essential-grid-script' );
		wp_localize_script('essential-grid-essential-grid-script', 'eg_ajax_var', array(
		    'url' => admin_url('admin-ajax.php'),
		    'nonce' => wp_create_nonce('eg-ajax-nonce')
		));

// Enqueue Lightbox Style/Script
		if($use_cache){
			wp_enqueue_script( 'themepunchboxext' );
		}

$grid = new Essential_Grid;
		extract(shortcode_atts(array('alias' => '', 'settings' => '', 'layers' => '', 'images' => '', 'posts' => '', 'special' => ''), $args, 'ess_grid'));
        $eg_alias = ($alias != '') ? $alias : implode(' ', $args);

if($settings !== '') $grid->custom_settings = json_decode(str_replace(array('({', '})', "'"), array('[', ']', '"'), $settings) ,true);
		if($layers !== '') $grid->custom_layers = json_decode(str_replace(array('({', '})', "'"), array('[', ']', '"'), $layers),true);
		if($images !== '') $grid->custom_images = explode(',', $images);
		if($posts !== '') $grid->custom_posts = explode(',', $posts);
		if($special !== '') $grid->custom_special = $special;

if($settings !== '' || $layers !== '' || $images !== '' || $posts !== '' || $special !== ''){ //disable caching if one of this is set
			$caching = 'false';
		}

$grid->check_for_shortcodes($mid_content); //check for example on gallery shortcode and do stuff

if ( $grid->is_gallery ) $caching = 'false';

if($eg_alias == '')
			$eg_alias = implode(' ', $args);

$content = false;
		$grid_id = self::get_id_by_alias($eg_alias);

if($grid_id == '0'){ //grid is created by custom settings. Check if layers and settings are set
			ob_start();
			$grid->output_essential_grid_by_settings();
			$content = ob_get_contents();
			ob_clean();
			ob_end_clean();
		}else{

if($caching == 'true'){ //check if we use total caching
				//add wpml transient
				$lang_code = '';
				if(Essential_Grid_Wpml::is_wpml_exists()){
					$lang_code = Essential_Grid_Wpml::get_current_lang_code();
				}

$content = get_transient( 'ess_grid_trans_full_grid_'.$grid_id.$lang_code );
			}

if($content == false){
				ob_start();
				$grid->output_essential_grid_by_alias($eg_alias);
				$content = ob_get_contents();
				ob_clean();
				ob_end_clean();

if($caching == 'true'){
					set_transient( 'ess_grid_trans_full_grid_'.$grid_id.$lang_code, $content, 60*60*24*7 );
				}
			}

}

$output_protection = get_option('tp_eg_output_protection', 'none');

//$dbg->setMemoryUsage('After ShortCode');
		//$dbg->setEnd();
		//$dbg->printMemoryUsageInformation();

//handle output types
		switch($output_protection){
			case 'compress':
				$content = str_replace("\n", '', $content);
				$content = str_replace("\r", '', $content);
				return($content);
			break;
			case 'echo':
				echo $content;		//bypass the filters
			break;
			default: //normal output
				return($content);
			break;
		}

}

/**
	 * Register Shortcode For Ajax Content
	 * @since: 1.5.0
	 */
	public static function register_shortcode_ajax_target($args, $mid_content=null){
		$args = apply_filters('essgrid_register_shortcode_ajax_target_pre', $args);

extract(shortcode_atts(array('alias' => ''), $args, 'ess_grid_ajax_target'));

if($alias == '') return false; //no alias found

$output_protection = get_option('tp_eg_output_protection', 'none');

$content = '';

$grid = new Essential_Grid;

$grid_id = self::get_id_by_alias($alias);
		if($grid_id > 0){

$grid->init_by_id($grid_id);
			//check if shortcode is allowed

$is_sc_allowed = $grid->get_param_by_handle('ajax-container-position');
			if($is_sc_allowed != 'shortcode') return false;

$content = $grid->output_ajax_container();

}

/**
	 * Register Shortcode For Filter
	 * @since: 1.5.0
	 */
	public static function register_shortcode_filter($args, $mid_content=null){
		$args = apply_filters('essgrid_register_shortcode_filter_pre', $args);

extract(shortcode_atts(array('alias' => '', 'id' => ''), $args, 'ess_grid_nav'));

if($alias == '') return false; //no alias found
		if($id == '') return false; //no alias found
		$base = new Essential_Grid_Base();
		$meta_c = new Essential_Grid_Meta();
		$meta_link_c = new Essential_Grid_Meta_Linking();

$output_protection = get_option('tp_eg_output_protection', 'none');

$content = '';

ob_start();

$grid = new Essential_Grid;

$grid_id = self::get_id_by_alias($alias);

if($grid_id > 0){
			$navigation_c = new Essential_Grid_Navigation($grid_id);

$grid->init_by_id($grid_id);

$layout = $grid->get_param_by_handle('navigation-layout', array());
			$navig_special_class = $grid->get_param_by_handle('navigation-special-class', array()); //has all classes in an ordered list
			$navig_special_skin = $grid->get_param_by_handle('navigation-special-skin', array()); //has all classes in an ordered list

$special_class = '';
			$special_skin = '';

if($id == 'sort') $id = 'sorting';

//Check if selected element is in external list and also get the key to use it to get class
			if(isset($layout[$id]) && isset($layout[$id]['external'])){
				$special_class = @$navig_special_class[$layout[$id]['external']];
				$special_skin = @$navig_special_skin[$layout[$id]['external']];
			}else{ //its not in external set so break since its only allowed to use each element one time
				return false;
			}

$navigation_c->set_special_class($special_class);
			$navigation_c->set_special_class($special_skin);
			$navigation_c->set_special_class('esg-fgc-'.$grid_id);

$nav_special_class = $navigation_c->get_special_class();

$filter = false;
			switch($id){
				case 'sorting':
					$order_by_start = $grid->get_param_by_handle('sorting-order-by-start', 'none');
					$sort_by_text = $grid->get_param_by_handle('sort-by-text', __('Sort By ', EG_TEXTDOMAIN));
					$order_by = explode(',', $grid->get_param_by_handle('sorting-order-by', 'date'));
					if(!is_array($order_by)) $order_by = array($order_by);
					//set order of filter
					$navigation_c->set_orders_text($sort_by_text);
					$navigation_c->set_orders_start($order_by_start);
					$navigation_c->set_orders($order_by);

/* 2.3.7 */
					echo '<div class="esg-nav-by-shortcode'.$nav_special_class.' '.$special_skin.' esg-filters">';
					echo $navigation_c->output_sorting();
					echo '</div>';
				break;
				case 'cart':
					/* 2.3.7 */
					echo '<div class="esg-nav-by-shortcode'.$nav_special_class.' '.$special_skin.' esg-filters">';
					echo $navigation_c->output_cart();
					echo '</div>';
				break;
				case 'left':
					/* 2.3.7 */
					echo '<div class="esg-nav-by-shortcode'.$nav_special_class.' '.$special_skin.' esg-navbutton-solo-left">';
					echo $navigation_c->output_navigation_left();
					echo '</div>';
				break;
				case 'right':
					/* 2.3.7 */
					echo '<div class="esg-nav-by-shortcode'.$nav_special_class.' '.$special_skin.' esg-navbutton-solo-right">';
					echo $navigation_c->output_navigation_right();
					echo '</div>';
				break;
				case 'pagination':
					/* 2.3.7 */
					echo '<div class="esg-nav-by-shortcode'.$nav_special_class.' '.$special_skin.' esg-filters">';
					echo $navigation_c->output_pagination();
					echo '</div>';
				break;
				case 'search-input':
					$search_text = $grid->get_param_by_handle('search-text', __('Search...', EG_TEXTDOMAIN));
					$navigation_c->set_search_text($search_text);

/* 2.3.7 */
					echo '<div class="esg-nav-by-shortcode'.$nav_special_class.' '.$special_skin.'">';
					echo $navigation_c->output_search_input();
					echo '</div>';
				break;
				case 'filter':
					$id = 1;
					$filter = true;
				break;
				default:
					//check for filter
					if(strpos($id, 'filter-') !== false){
						$id = intval(str_replace('filter-', '', $id));
						$filter = true;
					}else{
						return false;
					}
				break;
			}

/*****
			 * Complex Filter Part
			 *****/
			$found_filter = array();

if($filter === true){
				switch($grid->get_postparam_by_handle('source-type')){
					case 'custom':

if(!empty($grid->grid_layers) && count($grid->grid_layers) > 0){
							foreach($grid->grid_layers as $key => $entry){

$filters = array();

if(!empty($entry['custom-filter'])){
									$cats = explode(',', $entry['custom-filter']);
									if(!is_array($cats)) $cats = (array)$cats;
									foreach($cats as $category){
										$filters[sanitize_key($category)] = array('name' => $category, 'slug' => sanitize_key($category));
									}
								}

$found_filter = $found_filter + $filters; //these are the found filters, only show filter that the posts have

}
						}
					break;
					case 'post':
						$start_sortby = $grid->get_param_by_handle('sorting-order-by-start', 'none');
						$start_sortby_type = $grid->get_param_by_handle('sorting-order-type', 'ASC');
						$post_category = $grid->get_postparam_by_handle('post_category');
						$post_types = $grid->get_postparam_by_handle('post_types');
						$page_ids = explode(',',  $grid->get_postparam_by_handle('selected_pages', '-1'));

$cat_relation = $grid->get_postparam_by_handle('category-relation',  'OR');

$max_entries = $grid->get_maximum_entries($grid);

$additional_query = $grid->get_postparam_by_handle('additional-query', '');
						if($additional_query !== '')
							$additional_query = wp_parse_args($additional_query);

$cat_tax = Essential_Grid_Base::getCatAndTaxData($post_category);

$posts = Essential_Grid_Base::getPostsByCategory($grid_id, $cat_tax['cats'], $post_types, $cat_tax['tax'], $page_ids, $start_sortby, $start_sortby_type, $max_entries, $additional_query, true, $cat_relation);

$nav_filters = array();

$taxes = array('post_tag');
						if(!empty($cat_tax['tax']))
							$taxes = explode(',', $cat_tax['tax']);

if(!empty($cat_tax['cats'])){
							$cats = explode(',', $cat_tax['cats']);

foreach($cats as $key => $cid){
								if(Essential_Grid_Wpml::is_wpml_exists() && isset($sitepress)){
									$new_id = icl_object_id($cid, 'category', true, $sitepress->get_default_language());
									$cat = get_category($new_id);
								}else{
									$cat = get_category($cid);
								}
								if(is_object($cat)){
									$nav_filters[$cid] = array('name' => $cat->cat_name, 'slug' => sanitize_key($cat->slug), 'parent' => $cat->category_parent);
								}

foreach($taxes as $custom_tax){
									$term = get_term_by('id', $cid, $custom_tax);
									if(is_object($term)) $nav_filters[$cid] = array('name' => $term->name, 'slug' => sanitize_key($term->slug), 'parent' => $term->parent);
								}
							}

if(!empty($filters_meta)){
								$nav_filters = $filters_meta + $nav_filters;
							}
							asort($nav_filters);
						}

if($id == 1){
							$filterall_visible = $grid->get_param_by_handle('filter-all-visible');
							$all_text = $grid->get_param_by_handle('filter-all-text');
							$listing_type = $grid->get_param_by_handle('filter-listing', 'list');
							$listing_text = $grid->get_param_by_handle('filter-dropdown-text');
							$show_count = $grid->get_param_by_handle('filter-counter', 'off');
							$selected = $grid->get_param_by_handle('filter-selected', array());
						}else{
							$filterall_visible = $grid->get_param_by_handle('filter-all-visible-'.$id);
							$all_text = $grid->get_param_by_handle('filter-all-text-'.$id);
							$listing_type = $grid->get_param_by_handle('filter-listing-'.$id, 'list');
							$listing_text = $grid->get_param_by_handle('filter-dropdown-text-'.$id);
							$show_count = $grid->get_param_by_handle('filter-counter-'.$id, 'off');
							$selected = $grid->get_param_by_handle('filter-selected-'.$id, array());
						}
						$filter_allow = $grid->get_param_by_handle('filter-arrows', 'single');
						$filter_start = $grid->get_param_by_handle('filter-start', '');
						$filter_grouping = $grid->get_param_by_handle('filter-grouping', 'false');

//check the selected and change metas to correct fields
						$filters_arr['filter-grouping'] = $filter_grouping;
						$filters_arr['filter-listing'] = $listing_type;
						$filters_arr['filter-selected'] = $selected;

if(!empty($filters_arr['filter-selected'])){
							if(!empty($posts) && count($posts) > 0){
								foreach($filters_arr['filter-selected'] as $fk => $filter){
									if(strpos($filter, 'meta-') === 0){
										unset($filters_arr['filter-selected'][$fk]); //delete entry

foreach($posts as $key => $post){
											$fil = str_replace('meta-', '', $filter);
											$post_filter_meta = $meta_c->get_meta_value_by_handle($post['ID'], 'eg-'.$fil);
											$arr = json_decode($post_filter_meta, true);
											$cur_filter = (is_array($arr)) ? $arr : array($post_filter_meta);
											//$cur_filter = explode(',', $post_filter_meta);
											$add_filter = array();
											if(!empty($cur_filter)){
												foreach($cur_filter as $k => $v){
													if(trim($v) !== ''){
														$add_filter[sanitize_key($v)] = array('name' => $v, 'slug' => sanitize_key($v), 'parent' => '0');
														if(!empty($filters_arr['filter-selected'])){
															$filter_found = false;
															foreach($filters_arr['filter-selected'] as $fcheck){
																if($fcheck == sanitize_key($v)){
																	$filter_found = true;
																	break;
																}
															}
															if(!$filter_found){
																$filters_arr['filter-selected'][] = sanitize_key($v); //add found meta
															}
														}else{
															$filters_arr['filter-selected'][] = sanitize_key($v); //add found meta
														}
													}
												}
												if(!empty($add_filter)) $navigation_c->set_filter($add_filter);
											}
										}
									}
								}
							}
						}

if($all_text == '' || $listing_type == '' || $listing_text == '' || empty($filters_arr['filter-selected'])) return false;

$navigation_c->set_filter_settings('filter', $filters_arr);
						$navigation_c->set_filter_text($all_text);
						$navigation_c->set_filterall_visible($filterall_visible);
						$navigation_c->set_dropdown_text($listing_text);
						$navigation_c->set_show_count($show_count);
						$navigation_c->set_filter_type($filter_allow);
						$navigation_c->set_filter_start_select($filter_start);

if(!empty($posts) && count($posts) > 0){
							foreach($posts as $key => $post){

//check if post should be visible or if its invisible on current grid settings
								$is_visible = $grid->check_if_visible($post['ID'], $grid_id);
								if($is_visible == false) continue; // continue if invisible

$filters = array();

//$categories = get_the_category($post['ID']);
								$categories = $base->get_custom_taxonomies_by_post_id($post['ID']);
								//$tags = wp_get_post_terms($post['ID']);
								$tags = get_the_tags($post['ID']);

if(!empty($categories)){
									foreach($categories as $key => $category){
										$filters[$category->term_id] = array('name' => $category->name, 'slug' => sanitize_key($category->slug), 'parent' => $category->parent);
									}
								}

if(!empty($tags)){
									foreach($tags as $key => $taxonomie){
										$filters[$taxonomie->term_id] = array('name' => $taxonomie->name, 'slug' => sanitize_key($taxonomie->slug), 'parent' => '0');
									}
								}

$filter_meta_selected = $grid->get_param_by_handle('filter-selected', array());
								if(!empty($filter_meta_selected)){
									foreach($filter_meta_selected as $filter){
										if(strpos($filter, 'meta-') === 0){
											$fil = str_replace('meta-', '', $filter);
											$post_filter_meta = $meta_c->get_meta_value_by_handle($post['ID'], 'eg-'.$fil);
											$arr = json_decode($post_filter_meta, true);
											$cur_filter = (is_array($arr)) ? $arr : array($post_filter_meta);
											//$cur_filter = explode(',', $post_filter_meta);
											if(!empty($cur_filter)){
												foreach($cur_filter as $k => $v){
													if(trim($v) !== '')
														$filters[sanitize_key($v)] = array('name' => $v, 'slug' => sanitize_key($v), 'parent' => '0');
												}
											}
										}
									}
								}

$found_filter = $found_filter + $filters; //these are the found filters, only show filter that the posts have

}
						}

$remove_filter = array_diff_key($nav_filters, $found_filter); //check if we have filter that no post has (comes through multilanguage)
						if(!empty($remove_filter)){
							foreach($remove_filter as $key => $rem){ //we have, so remove them from the filter list before setting the filter list
								unset($found_filter[$key]);
							}
						}
					break;
				}

$navigation_c->set_filter($found_filter); //set filters $nav_filters $found_filter

/* 2.3.7 */
				echo '<div class="esg-nav-by-shortcode'.$nav_special_class.' '.$special_skin.' esg-filters">';
				echo $navigation_c->output_filter_unwrapped();
				echo '</div>';

}

$content = ob_get_contents();
		ob_clean();
		ob_end_clean();

/**
	 * We check the content for gallery shortcode.
	 * If existing, create Grid based on the images
	 * @since: 1.2.0
	 * @moved: 1.5.4: moved to Essential_Grid_Base->get_all_gallery_images($mid_content);
	 **/
	public function check_for_shortcodes($mid_content){
		$mid_content = apply_filters('essgrid_check_for_shortcodes', $mid_content);

$base = new Essential_Grid_Base();

$img = $base->get_all_gallery_images($mid_content);

$this->custom_images = (empty($img)) ? null : $img;
		$this->is_gallery = (empty($img)) ? false : true;
	}

public static function fix_shortcodes($content){
		$content = apply_filters('essgrid_fix_shortcodes_pre', $content);

$columns = array("ess_grid");
		$block = join("|",$columns);

// opening tag
		$rep = preg_replace("/(<p>)?\[($block)(\s[^\]]+)?\](<\/p>|<br \/>)?/","[$2$3]",$content);

// closing tag
		$rep = preg_replace("/(<p>)?\[\/($block)](<\/p>|<br \/>)/","[/$2]",$rep);

return apply_filters('essgrid_fix_shortcodes_post', $rep);
	}

/**
	 * Register Custom Post Type & Taxonomy
	 */
	public function register_custom_post_type() {
		$postType = apply_filters('essgrid_PunchPost_custom_post_type', 'essential_grid');
		$taxonomy = apply_filters('essgrid_PunchPost_category', 'essential_grid_category');

$taxArgs = array();
		$taxArgs["hierarchical"] = true;
		$taxArgs["label"] = __("Categories", EG_TEXTDOMAIN);
		$taxArgs["singular_label"] = __("Category", EG_TEXTDOMAIN);
		$taxArgs["rewrite"] = true;
		$taxArgs["public"] = true;
		$taxArgs["show_admin_column"] = true;

$postArgs = array();
		$postArgs["label"] = __("Ess. Grid Posts", EG_TEXTDOMAIN);
		$postArgs["singular_label"] = __("Ess. Grid Post", EG_TEXTDOMAIN);
		$postArgs["public"] = true;
		$postArgs["capability_type"] = "post";
		$postArgs["hierarchical"] = false;
		$postArgs["show_ui"] = true;
		$postArgs["show_in_menu"] = true;
		$postArgs["supports"] = array('title', 'editor', 'thumbnail', 'author', 'comments', 'excerpt');
		$postArgs["show_in_admin_bar"] = false;
		$postArgs["taxonomies"] = array($taxonomy, 'post_tag');

$postArgs["rewrite"] = array("slug"=>$postType,"with_front"=>true);

$d = apply_filters('essgrid_register_custom_post_type', array('postArgs' => $postArgs, 'taxArgs' => $taxArgs));
		$postArgs = $d['postArgs'];
		$taxArgs = $d['taxArgs'];

register_taxonomy($taxonomy,array($postType),$taxArgs);
		register_post_type($postType,$postArgs);

}

/**
	 * Create/Update Database Tables
	 */
	public static function create_tables($networkwide = false){
		global $wpdb;

if(function_exists('is_multisite') && is_multisite() && $networkwide){ //do for each existing site

// 2.2.5
			// $old_blog = $wpdb->blogid;

// Get all blog ids and create tables
			$blogids = $wpdb->get_col("SELECT blog_id FROM ".$wpdb->blogs);

foreach($blogids as $blog_id){
				switch_to_blog($blog_id);
				self::_create_tables();

// 2.2.5
				restore_current_blog();
            }

// 2.2.5
            // switch_to_blog($old_blog); //go back to correct blog

}else{  //no multisite, do normal installation

self::_create_tables();

}

/**
	 * Create Tables, edited for multisite
	 * @since 1.5.0
	 */
	public static function _create_tables(){

global $wpdb;

$charset_collate = $wpdb->get_charset_collate();

//Create/Update Grids Database
		$grid_ver = get_option("tp_eg_grids_version", '0.99');

if(version_compare($grid_ver, '1', '<')){

require_once(ABSPATH . 'wp-admin/includes/upgrade.php');

$table_name = $wpdb->prefix . self::TABLE_GRID;
			$sql = "CREATE TABLE $table_name (
				  id mediumint(6) NOT NULL AUTO_INCREMENT,
				  name VARCHAR(191) NOT NULL,
				  handle VARCHAR(191) NOT NULL,
				  postparams TEXT NOT NULL,
				  params TEXT NOT NULL,
				  layers TEXT NOT NULL,
				  UNIQUE KEY id (id),
				  UNIQUE (handle)
				  ) $charset_collate;";

dbDelta($sql);

$table_name = $wpdb->prefix . self::TABLE_ITEM_SKIN;
			$sql = "CREATE TABLE $table_name (
				  id mediumint(6) NOT NULL AUTO_INCREMENT,
				  name VARCHAR(191) NOT NULL,
				  handle VARCHAR(191) NOT NULL,
				  params TEXT NOT NULL,
				  layers TEXT NOT NULL,
				  settings TEXT,
				  UNIQUE KEY id (id),
				  UNIQUE (name),
				  UNIQUE (handle)
				  ) $charset_collate;";

dbDelta($sql);

$table_name = $wpdb->prefix . self::TABLE_ITEM_ELEMENTS;
			$sql = "CREATE TABLE $table_name (
				  id mediumint(6) NOT NULL AUTO_INCREMENT,
				  name VARCHAR(191) NOT NULL,
				  handle VARCHAR(191) NOT NULL,
				  settings TEXT NOT NULL,
				  UNIQUE KEY id (id),
				  UNIQUE (handle)
				  ) $charset_collate;";

dbDelta($sql);

$table_name = $wpdb->prefix . self::TABLE_NAVIGATION_SKINS;
			$sql = "CREATE TABLE $table_name (
				  id mediumint(6) NOT NULL AUTO_INCREMENT,
				  name VARCHAR(191) NOT NULL,
				  handle VARCHAR(191) NOT NULL,
				  css TEXT NOT NULL,
				  UNIQUE KEY id (id),
				  UNIQUE (handle)
				  ) $charset_collate;";

dbDelta($sql);

update_option('tp_eg_grids_version', '1');

$grid_ver = '1';
		}

//Change database on certain release? No Problem, use the following:

//change layers to MEDIUMTEXT from TEXT so that more layers can be added (fix for limited entries on custom grids)
		if(version_compare($grid_ver, '1.02', '<')){

$table_name = $wpdb->prefix . self::TABLE_GRID;
			$sql = "CREATE TABLE $table_name (
				  layers MEDIUMTEXT NOT NULL
				  ) $charset_collate;";

require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
			dbDelta($sql);

update_option('tp_eg_grids_version', '1.02');

$grid_ver = '1.02';

}

//change more entries to MEDIUMTEXT so that can be stored to prevent loss of data/errors
		if(version_compare($grid_ver, '1.03', '<')){

require_once(ABSPATH . 'wp-admin/includes/upgrade.php');

$table_name = $wpdb->prefix . self::TABLE_ITEM_SKIN;
			$sql = "CREATE TABLE $table_name (
				  layers MEDIUMTEXT NOT NULL
				  ) $charset_collate;";

dbDelta($sql);

$table_name = $wpdb->prefix . self::TABLE_NAVIGATION_SKINS;
			$sql = "CREATE TABLE $table_name (
				  css MEDIUMTEXT NOT NULL
				  ) $charset_collate;";

dbDelta($sql);

$table_name = $wpdb->prefix . self::TABLE_ITEM_ELEMENTS;
			$sql = "CREATE TABLE $table_name (
				  settings MEDIUMTEXT NOT NULL
				  ) $charset_collate;";

dbDelta($sql);

update_option('tp_eg_grids_version', '1.03');

$grid_ver = '1.03';
		}

//Add new column settings, as for 2.0 you can add favorite grids
		if(version_compare($grid_ver, '2.1', '<')){
			$table_name = $wpdb->prefix . self::TABLE_GRID;
			$sql = "CREATE TABLE $table_name (
				  settings TEXT NULL
				  last_modified DATETIME
				  ) $charset_collate;";

require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
			dbDelta($sql);

update_option('tp_eg_grids_version', '2.1');

$grid_ver = '2.1';
		}
		
		if(version_compare($grid_ver, '2.2', '<')){
			$table_name = $wpdb->prefix . self::TABLE_NAVIGATION_SKINS;
			$sql = "CREATE TABLE $table_name (
				  navversion VARCHAR(191)
				  ) $charset_collate;";

require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
			dbDelta($sql);
			
			update_option('tp_eg_grids_version', '2.2');
			$grid_ver = '2.2';
		}

do_action('essgrid__create_tables', $grid_ver);

}

/**
	 * Register Custom Sidebars, created in Grids
	 * @since 1.0.6
	 */
	public static function register_custom_sidebars(){

// Register custom Sidebars
		$sidebars = apply_filters('essgrid_register_custom_sidebars', get_option('esg-widget-areas', false));

if(is_array($sidebars) && !empty($sidebars)){
			foreach($sidebars as $handle => $name){
				register_sidebar(
					array (
						'name'          => $name,
						'id'            => 'eg-'.$handle,
						'before_widget' => '',
						'after_widget'  => ''
					)
				);
			}
		}
	}

/**
	* Register the Custom Widget for Essential Grid
	**/
	public static function register_custom_widget(){
	  register_widget( 'Essential_Grids_Widget' );
	}

/**
	 * Get all Grids in Database
	 */
	public static function get_essential_grids($order = false, $raw = true){
		global $wpdb, $esg_grids_cache;

$order_fav = false;
		$additional = '';
		if($order !== false && !empty($order)){
			$ordertype = key($order);
			$orderby = reset($order);
			if($ordertype != 'favorite'){
				$additional .= ' ORDER BY '.$ordertype.' '.$orderby;
			}else{
				$order_fav = true;
			}
		}
		
		if(empty($esg_grids_cache)){
			$table_name = $wpdb->prefix . self::TABLE_GRID;
			$grids = $wpdb->get_results("SELECT * FROM $table_name".$additional);
			$esg_grids_cache = $grids;
		}else{
			$grids = $esg_grids_cache;
		}
		
		//check if we order by favorites here
		if($order_fav === true){
			$temp = array();
			$temp_not = array();
			foreach($grids as $grid){
				$settings = json_decode($grid->settings, true);
				if(!isset($settings['favorite']) || $settings['favorite'] == 'false'){
					$temp_not[] = $grid;
				}else{
					$temp[] = $grid;
				}
			}
			$grids = array();
			
			$g = ($orderby == 'ASC') ? $temp : $temp_not;
			$g2 = ($orderby == 'ASC') ? $temp_not : $temp;
			$grids = $g;
			if(!empty($g2)){
				foreach($g2 as $t){
					$grids[] = $t;
				}
			}
			//$grids = ($orderby == 'ASC') ? array_merge($temp, $temp_not) : array_merge($temp_not, $temp);
		}
		
		if($raw === false && !empty($grids)){
			foreach($grids as $k => $grid){
				if(!is_array($grids[$k]->params)){
					$grids[$k]->postparams = @json_decode($grid->postparams, true);
					$grids[$k]->params = @json_decode($grid->params, true);
					$grids[$k]->layers = @json_decode($grid->layers, true);
					$grids[$k]->settings = @json_decode($grid->settings, true);
					$grids[$k]->last_modified = @$grid->last_modified;
				}
			}
		}

return apply_filters('essgrid_get_essential_grids', $grids);
	}

/**
	 * Get Grid by ID from Database
	 */
	public static function get_essential_grid_by_id($id = 0){
		global $wpdb;

$id = intval($id);
		if($id == 0) return false;

$table_name = $wpdb->prefix . self::TABLE_GRID;

$grid = $wpdb->get_row($wpdb->prepare("SELECT * FROM $table_name WHERE id = %d", $id), ARRAY_A);

if(!empty($grid)){
			$grid['postparams'] = @json_decode($grid['postparams'], true);
			$grid['params'] = @json_decode($grid['params'], true);
			$grid['layers'] = @json_decode($grid['layers'], true);
			$grid['settings'] = @json_decode($grid['settings'], true);
			$grid['last_modified'] = @$grid['last_modified'];
		}

return apply_filters('essgrid_get_essential_grid_by_id', $grid, $id);
	}

/**
	 * Get Grid by Handle from Database
	 */
	public static function get_essential_grid_by_handle($handle = ''){
		global $wpdb;

$handle = sanitize_title($handle);
		if(empty($handle)) return false;

$table_name = $wpdb->prefix . self::TABLE_GRID;

$grid = $wpdb->get_row($wpdb->prepare("SELECT * FROM $table_name WHERE handle = %s", $handle), ARRAY_A);

return apply_filters('essgrid_get_essential_grid_by_handle', $grid, $handle);
	}

/**
	 * get array of id -> title
	 */
	public static function get_grids_short($exceptID = null){
		$arrGrids = self::get_essential_grids();

$arrShort = array();
		foreach($arrGrids as $grid){
			$id = $grid->id;
			$title = $grid->name;

//filter by except
			if(!empty($exceptID) && $exceptID == $id)
				continue;

$arrShort[$id] = $title;
		}

return apply_filters('essgrid_get_grids_short', $arrShort, $exceptID);
	}

/**
	 * get array of id -> handle
	 * @since 1.0.6
	 */
	public static function get_grids_short_widgets($exceptID = null){
		$arrGrids = self::get_essential_grids();

$arrShort = array();

foreach($arrGrids as $grid){

//filter by except
			if(!empty($exceptID) && $exceptID == $grid->id)
				continue;

$arrShort[$grid->id] = $grid->handle;
		}

return apply_filters('essgrid_get_grids_short_widgets', $arrShort, $exceptID);
	}

/**
	 * get array of id -> title
	 */
	public static function get_grids_short_vc($exceptID = null){
		$arrGrids = self::get_essential_grids();

$arrShort = array();

foreach($arrGrids as $grid){
			$alias = $grid->handle;
			$title = $grid->name;

//filter by except
			if(!empty($exceptID) && $exceptID == $grid->id)
				continue;

$arrShort[$title] = $alias;
		}

return apply_filters('essgrid_get_grids_short_vc', $arrShort, $exceptID);
	}

/**
	 * Get Choosen Item Skin
	 * @since: 1.2.0
	 */
	public static function get_choosen_item_skin(){

$base = new Essential_Grid_Base();

//return apply_filters('essgrid_get_choosen_item_skin', $base->getVar($this->grid_params, 'entry-skin', 0, 'i'));

}

/**
	 * Get Certain Parameter
	 * @since: 1.5.0
	 */
	public function get_param_by_handle($handle, $default = ''){
		$d = apply_filters('essgrid_get_param_by_handle', array('handle' => $handle, 'default' => $default));
		$handle = $d['handle'];
		$default = $d['default'];

$base = new Essential_Grid_Base();

return $base->getVar($this->grid_params, $handle, $default);

}

/**
	 * Get Certain Post Parameter
	 * @since: 1.5.0
	 */
	public function get_postparam_by_handle($handle, $default = ''){
		$d = apply_filters('essgrid_get_postparam_by_handle', array('handle' => $handle, 'default' => $default));
		$handle = $d['handle'];
		$default = $d['default'];

$base = new Essential_Grid_Base();

return $base->getVar($this->grid_postparams, $handle, $default);

}

/**
	 * Update Certain Parameter by Handle
	 * @since: 2.1.0
	 */
	public function set_param_by_handle($handle, $param){
		$this->grid_params[$handle] = $param;
	}

/**
	 * Update Certain Post Parameter by Handle
	 * @since: 2.1.0
	 */
	public function set_postparam_by_handle($handle, $param){
		$this->grid_postparams[$handle] = $param;
	}

/**
	 * Update Certain Post Parameter by Handle
	 * @since: 2.1.0
	 */
	public function save_params(){
		global $wpdb;

$table_name = $wpdb->prefix . Essential_Grid::TABLE_GRID;

$wpdb->update($table_name,
			array(
				'postparams' => json_encode($this->grid_postparams),
				'params' => json_encode($this->grid_params)
			),
			array('id' => $this->grid_id)
		);

}

/**
	 * Output Essential Grid in Page by alias
	 */
	public function output_essential_grid_by_alias($eg_alias){
		global $wpdb;

$eg_alias = apply_filters('essgrid_output_essential_grid_by_alias', $eg_alias);

$table_name = $wpdb->prefix . self::TABLE_GRID;

$grid = $wpdb->get_row($wpdb->prepare("SELECT * FROM $table_name WHERE handle = %s", $eg_alias), ARRAY_A);

if(!empty($grid)){
			$this->output_essential_grid($grid['id']);
		}else{
			return false;
		}

}

/**
	 * Output Essential Grid in Page by Custom Settings and Layers
	 * @since: 1.2.0
	 */
	public function output_essential_grid_by_settings(){

do_action('essgrid_output_essential_grid_by_settings', $this);

if($this->custom_special !== null){
			if($this->custom_settings !== null) //custom settings got added. Overwrite Grid Settings and element settings
				$this->apply_custom_settings(true);

$this->apply_all_media_types();

$this->output_by_posts();
		}else{
			if($this->custom_settings == null || $this->custom_layers == null){ return false; }else{
				$this->output_essential_grid_custom();
			}
		}

}

/**
	 * Get Essential Grid ID by alias
	 * @since: 1.2.0
	 */
	public static function get_id_by_alias($eg_alias){
		global $wpdb;

$eg_alias = apply_filters('essgrid_get_id_by_alias', $eg_alias);

$table_name = $wpdb->prefix . self::TABLE_GRID;

$grid = $wpdb->get_row($wpdb->prepare("SELECT * FROM $table_name WHERE handle = %s", $eg_alias), ARRAY_A);

if(!empty($grid)){
			return $grid['id'];
		}else{
			return '0';
		}

}

/**
	 * Get Essential Grid alias by ID
	 * @since: 2.0
	 */
	public static function get_alias_by_id($eg_id){
		global $wpdb;

$eg_id = apply_filters('essgrid_get_alias_by_id', $eg_id);

$table_name = $wpdb->prefix . self::TABLE_GRID;

$grid = $wpdb->get_row($wpdb->prepare("SELECT * FROM $table_name WHERE id = %d", $eg_id), ARRAY_A);

if(!empty($grid)){
			return $grid['handle'];
		}else{
			return '';
		}

}

/**
     * get all post values / layer values at custom grid
	 * @since: 2.1.0
     */
    public function get_layer_values(){

return apply_filters('essgrid_get_layer_values', $this->grid_layers);

}

/**
	 * Init essential data by id
	 */
    public function init_by_id($grid_id){
        global $wpdb;

$grid_id = apply_filters('essgrid_init_by_id_pre', $grid_id);

$table_name = $wpdb->prefix . self::TABLE_GRID;

$grid = $wpdb->get_row($wpdb->prepare("SELECT * FROM $table_name WHERE id = %d", $grid_id), ARRAY_A);

if(empty($grid)) return false;

$this->grid_id = @$grid['id'];
		$this->grid_name = @$grid['name'];
		$this->grid_handle = @$grid['handle'];
		$this->grid_postparams = @json_decode($grid['postparams'], true);
		$this->grid_params = @json_decode($grid['params'], true);
		$this->grid_settings = @json_decode($grid['settings'], true);
		$this->grid_last_mod = @$grid['last_modified'];

if(!empty($grid['layers'])){
			$orig_layers = $grid['layers'];
			$grid['layers'] = @json_decode(stripslashes($orig_layers), true);
			if(empty($grid['layers']) || !is_array($grid['layers'])) $grid['layers'] = @json_decode($orig_layers, true);

if(!empty($grid['layers'])){
				foreach($grid['layers'] as $key => $layer){
					$orig_layers_cur = $grid['layers'][$key];
					$grid['layers'][$key] = @json_decode($orig_layers_cur, true);
					if(empty($grid['layers'][$key]) || !is_array($grid['layers'][$key])) $grid['layers'][$key] = @json_decode(stripslashes($orig_layers_cur), true);
				}
			}
		}
        $this->grid_layers = @$grid['layers'];

do_action('essgrid_init_by_id_post', $this, $grid);

return true;
    }

/**
	 * Init essential data by given data
	 */
    public function init_by_data($grid_data){

$grid_data = apply_filters('essgrid_init_by_data', $grid_data);

$this->grid_id = (isset($grid_data['id'])) ? $grid_data['id'] : '';
		$this->grid_name = (isset($grid_data['name'])) ? $grid_data['name'] : '';
		$this->grid_handle = (isset($grid_data['handle'])) ? $grid_data['handle'] : '';
        $this->grid_postparams = (isset($grid_data['postparams'])) ? $grid_data['postparams'] : '';
        $this->grid_params = (isset($grid_data['params'])) ? $grid_data['params'] : '';
		$this->grid_settings = (isset($grid_data['settings'])) ? $grid_data['settings'] : '';
		$this->grid_last_mod = (isset($grid_data['last_modified'])) ? $grid_data['last_modified'] : '';

$temp_layer = array();

if(!empty($grid_data['layers'])){
			foreach($grid_data['layers'] as $key => $layer){
				$temp_layer = @json_decode(stripslashes($grid_data['layers'][$key]), true);
				if(!empty($temp_layer)){
					$grid_data['layers'][$key] = $temp_layer;
				}else{
					$temp_layer = @json_decode($grid_data['layers'][$key], true);
					if(!empty($temp_layer)){
						$grid_data['layers'][$key] = $temp_layer;
					}
				}
			}
		}
        $this->grid_layers = @$grid_data['layers'];

return true;
    }

/**
	 * Init essential data by id
	 */
    public function set_loading_ids($ids){

$this->filter_by_ids = apply_filters('essgrid_set_loading_ids', $ids);

}

/**
	 * Check if Grid is a Post
	 */
    public function is_custom_grid(){

do_action('essgrid_is_custom_grid');

if(isset($this->grid_postparams['source-type']) && $this->grid_postparams['source-type'] == 'custom')
			return true;
		else
			return false;

}

/**
	 * Check if Grid is a Stream
	 */
    public function is_stream_grid(){

do_action('essgrid_is_stream_grid');

if(isset($this->grid_postparams['source-type'])){
			switch($this->grid_postparams['source-type']){
				case 'stream':
				case 'twitter':
				case 'facebook':
				case 'flickr':
				case 'instagram':
				case 'youtube':
				case 'behance':
				case 'nextgen':
				case 'rml':
				case 'vimeo':
					return true;
			}
		}
		return false;
    }

/**
	 * Output Essential Grid in Page
	 */
	public function output_essential_grid($grid_id, $data = array(), $grid_preview = false, $by_id = false){

try{

do_action('essgrid_output_essential_grid', $grid_id, $data, $grid_preview, $by_id);

if($grid_preview){
				$data['id'] = $grid_id;
				if($by_id == false){
					$init = $this->init_by_data($data);
				}else{
					$init = $this->init_by_id($grid_id);
				}
				if(!$init) return false; //be silent
			}else{
				$init = $this->init_by_id($grid_id);
				if(!$init) return false; //be silent
				Essential_Grid_Global_Css::output_global_css_styles_wrapped();
			}

if($this->custom_posts !== null) //custom post IDs are added, so we change to post
				$this->grid_postparams['source-type'] = 'post';

if($this->custom_images !== null) //custom images are added, so we change to gallery
				$this->grid_postparams['source-type'] = 'gallery';

if($this->custom_settings !== null) //custom settings got added. Overwrite Grid Settings and element settings
				$this->apply_custom_settings();

if($this->custom_layers !== null){ //custom layers got added. Overwrite Grid Layers
				$this->apply_custom_layers(true);
				$this->grid_postparams['source-type'] = 'custom';
			}

$this->set_api_names(); //set correct names for javascript and div id
			switch($this->grid_postparams['source-type']){
				case 'post':
				case 'woocommerce':
					$this->output_by_posts($grid_preview);
				break;
				case 'custom':
					$this->output_by_custom($grid_preview);
				break;
				case 'gallery':
					$this->output_by_gallery($grid_preview);
				break;
				case 'stream':
				case 'twitter':
				case 'facebook':
				case 'flickr':
				case 'instagram':
				case 'youtube':
				case 'behance':
				case 'nextgen':
				case 'rml':
				case 'vimeo':
					// $this->output_by_stream(false); //false, as we do not have any options to be changed
					$this->output_by_stream($grid_preview);
				break;
			}

}catch(Exception $e){
			$message = $e->getMessage();
			echo $message;
		}
	}

/**
	 * set correct names for javascript and div id
	 * @since: 1.5.0
	 */
	public function set_api_names(){
		$ess_api = '';
		$ess_div = '';
		if($this->grid_id != null){
			$ess_api = $this->grid_id;
			$ess_div = $this->grid_id;
		}

if($this->custom_special !== null){
			switch($this->custom_special){
				case 'related':
				case 'popular':
				case 'latest':
					$ess_api .= '_'.$this->custom_special;
					$ess_div .= '-'.$this->custom_special;
				break;
			}
		}
		if($this->custom_posts !== null){
			$ess_api .= '_custom_post';
			$ess_div .= '-custom_post';
		}
		if($this->custom_settings !== null){
			$ess_api .= '_custom';
			$ess_div .= '-custom';
		}
		if($this->custom_layers !== null){
			$ess_api .= '_layers';
			$ess_div .= '-layers';
		}
		if($this->custom_images !== null){
			$ess_api .= '_img';
			$ess_div .= '-img';
		}

$this->grid_api_name = $ess_api;
		$this->grid_div_name = $ess_div;

do_action('essgrid_set_api_names', $this);

}

/**
	 * Output Essential Grid in Page with Custom Layer and Settings
	 * @since: 1.2.0
	 */
	public function output_essential_grid_custom($grid_preview = false){
		try{

do_action('essgrid_output_essential_grid_custom', $this, $grid_preview);

Essential_Grid_Global_Css::output_global_css_styles_wrapped();

if($this->custom_settings !== null) //custom settings got added. Overwrite Grid Settings and element settings
				$this->apply_custom_settings(true);

if($this->custom_layers !== null) //custom settings got added. Overwrite Grid Settings and element settings
				$this->apply_custom_layers(true);

$this->apply_all_media_types();

return $this->output_by_custom($grid_preview);

}catch(Exception $e){
			$message = $e->getMessage();
			echo $message;
		}
	}

/**
	 * Apply all media types for custom grids that have not much settings
	 * @since: 1.2.0
	 */
	public function apply_all_media_types(){
		/**
		 * Add settings that need to be set
		 * - use all media sources, sorting does not matter since we only set one thing in each entry
		 * - use all poster sources for videos, sorting does not matter since we only set one thing in each entry
		 * - use all lightbox sources, sorting does not matter since we only set one thing in each entry
		 */
		$media_orders = Essential_Grid_Base::get_media_source_order();
		foreach($media_orders as $handle => $vals){
			if($handle == 'featured-image' || $handle == 'alternate-image') continue;
			$this->grid_postparams['media-source-order'][] = $handle;
		}
		$this->grid_postparams['media-source-order'][] = 'featured-image'; //set this as the last entry
		$this->grid_postparams['media-source-order'][] = 'alternate-image'; //set this as the last entry

$poster_orders = Essential_Grid_Base::get_poster_source_order();
		if(!empty($poster_orders)){
			foreach($poster_orders as $handle => $vals){
				$this->grid_params['poster-source-order'][] = $handle;
			}
		}

$lb_orders = Essential_Grid_Base::get_lb_source_order();
		foreach($lb_orders as $handle => $vals){
			$this->grid_params['lb-source-order'][] = $handle;
		}

$lb_buttons = Essential_Grid_Base::get_lb_button_order();
		foreach($lb_buttons as $handle => $vals){
			$this->grid_params['lb-button-order'][] = $handle;
		}

do_action('essgrid_apply_all_media_types', $this);
	}

/**
	 * Apply Custom Settings to the Grid, so users can change everything in the settings they want to
	 * This allows to modify grid_params and grid_post_params
	 * @since: 1.2.0
	 */
	private function apply_custom_settings($has_handle = false){

if(empty($this->custom_settings) || !is_array($this->custom_settings)) return false;

$base = new Essential_Grid_Base();

$translate_variables = array('grid-layout' => 'layout');

foreach($this->custom_settings as $handle => $new_setting){

if(isset($translate_variables[$handle])){
				$handle = $translate_variables[$handle];
			}

if($has_handle){ //p- is in front of postparameters

if(strpos($handle, 'p-') === 0)
					$this->grid_postparams[substr($handle, 2)] = $new_setting;
				else
					$this->grid_params[$handle] = $new_setting;

}else{

if(isset($this->grid_params[$handle])){
					$this->grid_params[$handle] = $new_setting;
				}elseif(isset($this->grid_postparams[$handle])){
					$this->grid_postparams[$handle] = $new_setting;
				}else{
					$this->grid_params[$handle] = $new_setting;
				}

}
		}

if(isset($this->grid_params['columns'])){ //change columns
			$columns = $base->set_basic_colums_custom($this->grid_params['columns']);
			$this->grid_params['columns'] = $columns;
		}

if(isset($this->grid_params['rows-unlimited']) && $this->grid_params['rows-unlimited'] == 'off'){ //add pagination
			$this->grid_params['navigation-layout']['pagination']['bottom-1'] = '0';
			$this->grid_params['bottom-1-margin-top'] = '10';
		}

do_action('essgrid_apply_custom_settings', $this);

return true;

}

/**
	 * Apply Custom Layers to the Grid
	 * @since: 1.2.0
	 */
	private function apply_custom_layers(){

$this->grid_layers = array();
		if(!empty($this->custom_layers) && is_array($this->custom_layers)){
			$add_poster_img = array();
			foreach($this->custom_layers as $handle => $val_arr){
				if(!empty($val_arr) && is_array($val_arr)){
					//$custom_poster = false;
					foreach($val_arr as $id => $value){
						//if($handle == 'custom-poster') $custom_poster = array($id, $value);
						if($handle == 'custom-poster'){
							$add_poster_img[$id] = $value;
							continue;
						}
						$this->grid_layers[$id][$handle] = $value;
					}
				}
			}

if(!empty($add_poster_img)){
				foreach($add_poster_img as $id => $value){
					$this->grid_layers[$id]['custom-image'] = $value;
				}
			}
		}

do_action('essgrid_apply_custom_layers', $this);

}

/**
	 * Output by Specific Stream
	 * @since: 2.1.0
	 */
	public function output_by_specific_stream(){

ob_start();
		$this->output_by_stream(false, true, $this->filter_by_ids);
		$stream_html = ob_get_contents();
		ob_clean();
		ob_end_clean();

return apply_filters('essgrid_output_by_specific_stream', $stream_html, $this);
	}

/**
	 * Output by Stream
	 * @since: 2.1.0
	 */
	public function output_by_stream($grid_preview = false, $only_elements = false, $specific_ids = array()){

do_action('essgrid_output_by_stream_pre', $grid_preview, $only_elements, $specific_ids);

$this->grid_layers = array();

$base = new Essential_Grid_Base();

if( in_array( $base->getVar($this->grid_postparams, 'source-type'), array("nextgen","rml") ) ){
			if( $base->getVar($this->grid_postparams, 'source-type') == "nextgen" ){
				$nextgen = new Essential_Grid_Nextgen();
				switch ($base->getVar($this->grid_postparams, 'nextgen-source-type','album')) {
					case 'album':
						$images = $nextgen->get_album_images($base->getVar($this->grid_postparams, 'nextgen-album',''));
						break;
					case 'gallery':
						$images = $nextgen->get_gallery_images(array($base->getVar($this->grid_postparams, 'nextgen-gallery','')));
						break;
					case 'tags':
						$images = $nextgen->get_tags_images($base->getVar($this->grid_postparams, 'nextgen-tags',''));
						break;
				}

$nextgen_images_avail_sizes = array('thumb','original');

if(is_array($images)){
					foreach ($images as $image) {
						$image['custom-image-url-full'] = $this->find_biggest_photo($image['custom-image-url'],$base->getVar($this->grid_postparams, 'nextgen-full-size'),$nextgen_images_avail_sizes);
						$image['custom-preload-image-url'] = $image['custom-image-url'][$base->getVar($this->grid_postparams, 'nextgen-thumb-size','thumb')][0];
						$image['custom-image-url'] = $this->find_biggest_photo($image['custom-image-url'],$base->getVar($this->grid_postparams, 'nextgen-thumb-size'),$nextgen_images_avail_sizes);
						$this->grid_layers[] = $image; //preg_replace("/[^0-9]/","",$image['id'])
					}
				}
			}
			else {
				$rml = new Essential_Grid_Rml();
				$images = $rml->get_images($base->getVar($this->grid_postparams, 'rml-source-type'));

if(is_array($images)){
					foreach ($images as $image) {
						$image['custom-image-url-full'] = $image['custom-image-url'][$base->getVar($this->grid_postparams, 'rml-full-size','original')];
						$image['custom-preload-image-url'] = $image['custom-image-url']['thumbnail'];
						$image['custom-image-url'] = $image['custom-image-url'][$base->getVar($this->grid_postparams, 'rml-thumb-size','original')];
						$this->grid_layers[] = $image; //preg_replace("/[^0-9]/","",$image['id'])
					}
				}
			}
		}
		else{
			switch ($base->getVar($this->grid_postparams, 'stream-source-type')) {
				case 'twitter':
					$twitter = new Essential_Grid_Twitter($base->getVar($this->grid_postparams, 'twitter-consumer-key'),$base->getVar($this->grid_postparams, 'twitter-consumer-secret'),$base->getVar($this->grid_postparams, 'twitter-access-token'),$base->getVar($this->grid_postparams, 'twitter-access-secret'),$base->getVar($this->grid_postparams, 'twitter-transient-sec',86400));
					$tweets = $twitter->get_public_photos($base->getVar($this->grid_postparams, 'twitter-user-id'),$base->getVar($this->grid_postparams, 'twitter-include-retweets'),$base->getVar($this->grid_postparams, 'twitter-exclude-replies'),$base->getVar($this->grid_postparams, 'twitter-count'),$base->getVar($this->grid_postparams, 'twitter-image-only'));

if(is_array($tweets)){
						foreach ($tweets as $tweet) {
							if( empty($tweet['custom-image-url-full'][0]) ) {
								$default_image_id = $base->getVar($this->grid_postparams, 'default-image');
								$default_image_size = 'full';
								if(!empty($default_image_id)){
									$image =  wp_get_attachment_image_src($default_image_id,$default_image_size);
									$tweet['custom-image-url-full']= $image;
								}
							}
							if( empty($tweet['custom-image-url'][0]) ) {
								$default_image_id = $base->getVar($this->grid_postparams, 'default-image');
								$default_image_size = 'full';
								if(!empty($default_image_id)){
									$image =  wp_get_attachment_image_src($default_image_id,$default_image_size);
									$tweet['custom-image-url']= $image;
								}
							}
							$this->grid_layers[] = $tweet; //preg_replace("/[^0-9]/","",$tweet['id'])
						}
					}
					break;
				case 'instagram':
					$instagram = new Essential_Grid_Instagram($base->getVar($this->grid_postparams, 'instagram-transient-sec',86400));

$public_photos = array();

$orig_image = true;

$user_photos = $instagram->get_public_photos($base->getVar($this->grid_postparams, 'instagram-api-key'),$base->getVar($this->grid_postparams, 'instagram-count'),$orig_image );
					$public_photos = $user_photos;

if(is_array($public_photos)){
						foreach ($public_photos as $photo) {
							$photo['custom-image-url-full'] = array($photo['custom-image-url']);
							$photo['custom-image-url'] = array($photo['custom-image-url']);

if($photo['custom-type'] == 'html5'){
								$photo['html5']['mp4'] = $photo['custom-html5-mp4'];
							}

$this->grid_layers[] = $photo; //preg_replace("/[^0-9]/","",$photo['id'])
						}
					}
					break;
				case 'vimeo':
					$vimeo = new Essential_Grid_Vimeo($base->getVar($this->grid_postparams, 'vimeo-transient-sec',0));
					$vimeo_type = $base->getVar($this->grid_postparams, 'vimeo-type-source');

switch ($vimeo_type) {
						case 'user':
							$videos = $vimeo->get_vimeo_videos($vimeo_type,$base->getVar($this->grid_postparams, 'vimeo-username'),$base->getVar($this->grid_postparams, 'vimeo-count','50'));
							break;
						case 'channel':
							$videos = $vimeo->get_vimeo_videos($vimeo_type,$base->getVar($this->grid_postparams, 'vimeo-channelname'),$base->getVar($this->grid_postparams, 'vimeo-count','50'));
							break;
						case 'group':
							$videos = $vimeo->get_vimeo_videos($vimeo_type,$base->getVar($this->grid_postparams, 'vimeo-groupname'),$base->getVar($this->grid_postparams, 'vimeo-count','50'));
							break;
						case 'album':
							$videos = $vimeo->get_vimeo_videos($vimeo_type,$base->getVar($this->grid_postparams, 'vimeo-albumid'),$base->getVar($this->grid_postparams, 'vimeo-count','50'));
							break;
						default:
							break;

}

$vimeo_images_avail_sizes = array('thumbnail_small','thumbnail_medium','thumbnail_large');

if(is_array($videos)){
						foreach ($videos as $video) {
							$video['custom-preload-image-url'] = $video['custom-image-url']['thumbnail_small'][0];
							$video['custom-image-url'] = $this->find_biggest_photo($video['custom-image-url'],$base->getVar($this->grid_postparams, 'vimeo-thumb-size','thumbnail_medium'),$vimeo_images_avail_sizes);
							$this->grid_layers[] = $video; //preg_replace("/[^0-9]/","",$video['id'])
						}
					}
					break;
				case 'youtube':
					$channel_id = $base->getVar($this->grid_postparams, 'youtube-channel-id');
					$youtube = new Essential_Grid_Youtube($base->getVar($this->grid_postparams, 'youtube-api'),$channel_id,$base->getVar($this->grid_postparams, 'youtube-transient-sec',0));

switch ($base->getVar($this->grid_postparams, 'youtube-type-source')) {
						case 'playlist':
							$videos = $youtube->show_playlist_videos($base->getVar($this->grid_postparams, 'youtube-playlist'),$base->getVar($this->grid_postparams, 'youtube-count'));
							break;
						case 'playlist_overview':
							$videos = $youtube->show_playlist_overview($base->getVar($this->grid_postparams, 'youtube-count'));
							break;
						default:
							$videos = $youtube->show_channel_videos($base->getVar($this->grid_postparams, 'youtube-count'));
							break;
					}

$youtube_images_avail_sizes = array('default','medium','high','standard','maxres');

if(is_array($videos)){
						foreach ($videos as $video) {
							$video['custom-preload-image-url'] = $video['custom-image-url']['default'][0];
							$video['custom-image-url-full'] = $this->find_biggest_photo($video['custom-image-url'],$base->getVar($this->grid_postparams, 'youtube-full-size'),$youtube_images_avail_sizes);
							$video['custom-image-url'] = $this->find_biggest_photo($video['custom-image-url'],$base->getVar($this->grid_postparams, 'youtube-thumb-size'),$youtube_images_avail_sizes);

if(strpos($video['custom-image-url-full'][0], 'no_thumbnail') > 0) {
								$default_image_id = $base->getVar($this->grid_postparams, 'default-image');
								//$default_image_size = $base->getVar($this->grid_postparams, 'image-source-type');
								$default_image_size = 'full';
								if(!empty($default_image_id)){
									$image =  wp_get_attachment_image_src($default_image_id,$default_image_size);
									$video['custom-image-url-full']= $image;
								}
							}
							if(strpos($video['custom-image-url'][0], 'no_thumbnail') > 0) {
								$default_image_id = $base->getVar($this->grid_postparams, 'default-image');

$default_image_size = $base->getVar($this->grid_postparams, 'image-source-type', 'full');

/* 2.1.6 */
								if(wp_is_mobile()) {
									$default_image_size = $base->getVar($this->grid_postparams, 'image-source-type-mobile', $default_image_size);
								}

if(!empty($default_image_id)){
									$image =  wp_get_attachment_image_src($default_image_id,$default_image_size);
									$video['custom-image-url']= $image;
								}
							}

$this->grid_layers[] = $video; //preg_replace("/[^0-9]/","",$video['id'])
						}
					}
					break;
				case 'facebook':
					$facebook = new Essential_Grid_Facebook($base->getVar($this->grid_postparams, 'facebook-transient-sec',86400));
					if($base->getVar($this->grid_postparams, 'facebook-type-source') == "album"){
						$photo_set_photos = $facebook->get_photo_set_photos($base->getVar($this->grid_postparams, 'facebook-album'),$base->getVar($this->grid_postparams, 'facebook-count',10),$base->getVar($this->grid_postparams, 'facebook-access-token'));
					}
					else{
						$user_id = $facebook->get_user_from_url($base->getVar($this->grid_postparams, 'facebook-page-url'));
						$photo_set_photos = $facebook->get_photo_feed($user_id,$base->getVar($this->grid_postparams, 'facebook-access-token'),$base->getVar($this->grid_postparams, 'facebook-count',10));
					}

$facebook_images_avail_sizes = array("thumbnail","normal");

if(is_array($photo_set_photos)){
						$default_image_id = $base->getVar($this->grid_postparams, 'default-image');
						$default_image_size = 'full';
						$image =  wp_get_attachment_image_src($default_image_id,$default_image_size);

foreach ($photo_set_photos as $photo) {
							$photo['custom-preload-image-url'] = isset($photo['custom-image-url']['thumbnail'][0]) ? $photo['custom-image-url']['thumbnail'][0] : "";
							$photo['custom-image-url-full'] = isset($photo['custom-image-url']['normal']) ? $photo['custom-image-url']['normal'] : "";
							$photo['custom-image-url'] = isset($photo['custom-image-url']['normal']) ? $photo['custom-image-url']['normal'] : "";

if( !empty($default_image_id) && empty($photo['custom-image-url']) ){
								$photo['custom-preload-image-url'] = $image;
								$photo['custom-image-url-full'] = $image;
								$photo['custom-image-url'] = $image;
							}

$this->grid_layers[] = $photo;
						}
					}
					break;
				case 'flickr':
					$flickr = new Essential_Grid_Flickr($base->getVar($this->grid_postparams, 'flickr-api-key'),$base->getVar($this->grid_postparams, 'flickr-transient-sec',86400));

switch($base->getVar($this->grid_postparams, 'flickr-type')){
						case 'publicphotos':
							$user_id = $flickr->get_user_from_url($base->getVar($this->grid_postparams, 'flickr-user-url'));
							$flickr_photos = $flickr->get_public_photos($user_id,$base->getVar($this->grid_postparams, 'flickr-count'));
							break;
						case 'gallery':
							$gallery_id = $flickr->get_gallery_from_url($base->getVar($this->grid_postparams, 'flickr-gallery-url'));
							$flickr_photos = $flickr->get_gallery_photos($gallery_id,$base->getVar($this->grid_postparams, 'flickr-count'));
							break;
						case 'group':
							$group_id = $flickr->get_group_from_url($base->getVar($this->grid_postparams, 'flickr-group-url'));
							$flickr_photos = $flickr->get_group_photos($group_id,$base->getVar($this->grid_postparams, 'flickr-count'));
							break;
						case 'photosets':
							$flickr_photos = $flickr->get_photo_set_photos($base->getVar($this->grid_postparams, 'flickr-photoset'),$base->getVar($this->grid_postparams, 'flickr-count'));
							break;
					}

$flickr_images_avail_sizes = array('Square','Thumbnail','Large Square','Small','Small 320','Medium','Medium 640','Medium 800','Large','Original');

if(is_array($flickr_photos)){
						foreach ($flickr_photos as $photo) {
							$photo['custom-preload-image-url'] = $photo['custom-image-url']['Square'][0];
							$photo['custom-image-url-full'] = $this->find_biggest_photo($photo['custom-image-url'],$base->getVar($this->grid_postparams, 'flickr-full-size'),$flickr_images_avail_sizes);
							$photo['custom-image-url'] = $this->find_biggest_photo($photo['custom-image-url'],$base->getVar($this->grid_postparams, 'flickr-thumb-size'),$flickr_images_avail_sizes);
							$this->grid_layers[] = $photo; //preg_replace("/[^0-9]/","",$photo['id'])
						}
					}
					break;
					case 'behance':
						$behance = new Essential_Grid_Behance($base->getVar($this->grid_postparams, 'behance-api'),$base->getVar($this->grid_postparams, 'behance-user-id'),$base->getVar($this->grid_postparams, 'behance-transient-sec',0));

if( $base->getVar($this->grid_postparams, 'behance-type','projects')=='projects' ){
							$images = $behance->get_behance_projects( $base->getVar($this->grid_postparams, 'behance-count',12) );
						}
						else {
							$images = $behance->get_behance_project_images($base->getVar($this->grid_postparams, 'behance-project',''), $base->getVar($this->grid_postparams, 'behance-count',100) );
						}

$behance_project_images_avail_sizes = array('disp','max_86400','max_1240','original');
						$behance_images_avail_sizes = array('115','202','230','404','original');

if(is_array($images)){
							foreach ($images as $image) {
								if($base->getVar($this->grid_postparams, 'behance-type','projects')!='projects'){

$image['custom-image-url-full'] = $this->find_biggest_photo($image['custom-image-url'],$base->getVar($this->grid_postparams, 'behance-project-full-size'),$behance_project_images_avail_sizes);
									$image['custom-image-url'] = $this->find_biggest_photo($image['custom-image-url'],$base->getVar($this->grid_postparams, 'behance-project-thumb-size'),$behance_project_images_avail_sizes);
								}
								else{

$image['custom-image-url-full'] = $this->find_biggest_photo($image['custom-image-url'],$base->getVar($this->grid_postparams, 'behance-projects-full-size'),$behance_images_avail_sizes);
									$image['custom-image-url'] = $this->find_biggest_photo($image['custom-image-url'],$base->getVar($this->grid_postparams, 'behance-projects-thumb-size'),$behance_images_avail_sizes);
								}

$this->grid_layers[] = $image; //preg_replace("/[^0-9]/","",$image['id'])
							}
						}
					break;
			} // end switch
		} // end else

if(!empty($specific_ids)){ //remove all that we do not have in this array
			foreach($this->grid_layers as $key => $layer){
				if(!in_array($key, $specific_ids)) unset($this->grid_layers[$key]);
			}
		}

/*
		$order_by = explode(',', $base->getVar($this->grid_params, 'sorting-order-by', 'date'));
		if(!is_array($order_by)) $order_by = array($order_by);
		$order_by_start = $base->getVar($this->grid_params, 'sorting-order-by-start', 'none');
		$order_by_dir = $base->getVar($this->grid_params, 'sorting-order-type', 'ASC');

if(!empty($order_by_start) && !empty($this->grid_layers)){
			if(is_array($order_by_start)){
				$order_by_start = $order_by_start[0];
			}

switch($order_by_start){
				case 'rand':
					$this->grid_layers = $base->shuffle_assoc($this->grid_layers);
				break;
				case 'title':
				case 'post_url':
				case 'excerpt':
				case 'meta':
				case 'alias':
				case 'name':
				case 'content':
				case 'author_name':
				case 'author':
				case 'cat_list':
				case 'tag_list':
					if($order_by_start == 'name') $order_by_start = 'alias';
					if($order_by_start == 'author') $order_by_start = 'author_name';
					//check if values are existing and if not, add them to the layers
					$this->set_custom_sorter($order_by_start, $order_by_dir);
					usort($this->grid_layers, array('Essential_Grid', 'custom_sorter'));
				break;
				case 'post_id':
				case 'ID':
				case 'num_comments':
				case 'comment_count':
				case 'date':
				case 'modified':
				case 'date_modified':
				case 'views':
				case 'likes':
				case 'dislikes':
				case 'retweets':
				case 'favorites':
				case 'itemCount':
				case 'duration':
					if($order_by_start == 'comment_count') $order_by_start = 'num_comments';
					if($order_by_start == 'modified') $order_by_start = 'date_modified';
					if($order_by_start == 'ID') $order_by_start = 'post_id';
					$this->set_custom_sorter($order_by_start, $order_by_dir);
					usort($this->grid_layers, array('Essential_Grid', 'custom_sorter_int'));
				break;
			}
		}

//var_dump($order_by);

/*
			$item_skin = new Essential_Grid_Item_Skin();
			$item_skin->grid_id = $this->grid_id;
			$item_skin->init_by_id($base->getVar($this->grid_params, 'entry-skin', 0, 'i'));
			$item_skin->set_grid_type($base->getVar($this->grid_params, 'layout','even'));
			$filters = array();
			if(!empty($this->grid_layers) && count($this->grid_layers) > 0){
				foreach($this->grid_layers as $key => $entry){
					if(is_array($order_by) && !empty($order_by)){
						$sort = $this->prepare_sorting_array_by_stream($entry, $order_by);
						$item_skin->set_sorting($sort);
					}
				}
			}
		*/
		do_action('essgrid_output_by_stream_post', $this, $grid_preview, $only_elements);

$do_load_more = (!empty($specific_ids)) ? true : false;

return $this->output_by_custom($grid_preview, $only_elements, $do_load_more);
	}

public function find_biggest_photo($image_urls, $wanted_size, $avail_sizes){
		$d = apply_filters('essgrid_find_biggest_photo', array('image_urls' => $image_urls, 'wanted_size' => $wanted_size, 'avail_sizes' => $avail_sizes));

$image_urls = $d['image_urls'];
		$wanted_size = $d['wanted_size'];
		$avail_sizes = $d['avail_sizes'];

if(isset($image_urls[$wanted_size]) && !$this->isEmpty($image_urls[$wanted_size])) return $image_urls[$wanted_size];
		$wanted_size_pos = array_search($wanted_size, $avail_sizes);
		for ($i=$wanted_size_pos; $i < 7; $i++) {
			if(isset($avail_sizes[$i]) && !$this->isEmpty($image_urls[$avail_sizes[$i]]))
				return $image_urls[$avail_sizes[$i]];
		}
		for ($i=$wanted_size_pos; $i >= 0 ; $i--) {
			if(!$this->isEmpty($image_urls[$avail_sizes[$i]])) return $image_urls[$avail_sizes[$i]];
		}
	}

public function isEmpty($stringOrArray) {

$stringOrArray = apply_filters('essgrid_isEmpty', $stringOrArray);

if(is_array($stringOrArray)) {
	        foreach($stringOrArray as $value) {
	            if(!$this->isEmpty($value)) {
	                return false;
	            }
	        }
	        return true;
	    }

return !strlen($stringOrArray);  // this properly checks on empty string ('')
	}

/**
	 * Output by gallery
	 * Remove all custom elements, add image elements
	 * @since: 1.2.0
	 */
	public function output_by_gallery($grid_preview = false, $only_elements = false, $from_ajax = false){

$this->grid_layers = array();

if(!empty($this->custom_images)){
			foreach($this->custom_images as $image_id){

$attachment = get_post( $image_id );
				$meta = array(
					//'alt' => get_post_meta( $attachment->ID, '_wp_attachment_image_alt', true ),
					'caption' => $attachment->post_excerpt,
					'description' => $attachment->post_content,
					'href' => get_permalink( $attachment->ID ),
					//'src' => $attachment->guid,
					'title' => $attachment->post_title
				);

$this->grid_layers[$image_id] = array(
					'custom-image' => $image_id,
					'excerpt' => $attachment->post_excerpt,
					'caption' => $attachment->post_excerpt,
					'title' => $attachment->post_title,
					'content' => $attachment->post_content,
					'description' => $attachment->post_content
				);

}
		}

do_action('essgrid_output_by_gallery', $this, $grid_preview, $only_elements);

return $this->output_by_custom($grid_preview, $only_elements, false, $from_ajax);

}

/**
	 * Output by custom grid
	 */
	public function output_by_custom($grid_preview = false, $only_elements = false, $set_load_more = false, $from_ajax = false){

$post_limit = 99999;

do_action('essgrid_output_by_custom_pre', $this, $grid_preview, $only_elements);

$base = new Essential_Grid_Base();
		$navigation_c = new Essential_Grid_Navigation($this->grid_id);
		$item_skin = new Essential_Grid_Item_Skin();
		$item_skin->grid_id = $this->grid_id;
		$item_skin->set_grid_type($base->getVar($this->grid_params, 'layout','even'));

$item_skin->set_default_image_by_id($base->getVar($this->grid_postparams, 'default-image', 0, 'i'));
		$item_skin->set_default_youtube_image_by_id($base->getVar($this->grid_params, 'youtube-default-image', 0, 'i'));
		$item_skin->set_default_vimeo_image_by_id($base->getVar($this->grid_params, 'vimeo-default-image', 0, 'i'));
		$item_skin->set_default_html_image_by_id($base->getVar($this->grid_params, 'html5-default-image', 0, 'i'));

// 2.1.6.2
		$item_skin->set_grid_item_animation($base, $this->grid_params);

if($set_load_more)
			$item_skin->set_load_more();

$m = new Essential_Grid_Meta();

$skins_html = '';
		$skins_css = '';
		$filters = array();

$rows_unlimited = $base->getVar($this->grid_params, 'rows-unlimited', 'on');
		$load_more = $base->getVar($this->grid_params, 'load-more', 'none');
		$load_more_start = $base->getVar($this->grid_params, 'load-more-start', 3, 'i');

if($rows_unlimited == 'on' && $load_more !== 'none' && $grid_preview == false){ //grid_preview means disable load more in preview
			$post_limit = $load_more_start;
		}

$nav_filters = array();

$nav_layout = $base->getVar($this->grid_params, 'navigation-layout', array());
		$nav_skin = $base->getVar($this->grid_params, 'navigation-skin', 'minimal-light');
		$hover_animation = $base->getVar($this->grid_params, 'hover-animation', 'fade');
		$filter_allow = $base->getVar($this->grid_params, 'filter-arrows', 'single');
		$filter_start = $base->getVar($this->grid_params, 'filter-start', '');
		$filterall_visible = $base->getVar($this->grid_params, 'filter-all-visible', 'on');
		$filter_all_text = $base->getVar($this->grid_params, 'filter-all-text', __('Filter - All', EG_TEXTDOMAIN));
		$filter_dropdown_text = $base->getVar($this->grid_params, 'filter-dropdown-text', __('Filter Categories', EG_TEXTDOMAIN));
		$show_count = $base->getVar($this->grid_params, 'filter-counter', 'off');
		$search_text = $base->getVar($this->grid_params, 'search-text', __('Search...', EG_TEXTDOMAIN));

$filter_grouping = $base->getVar($this->grid_params, 'filter-grouping', 'false');
		$listing_type = $base->getVar($this->grid_params, 'filter-listing', 'list');
		//$selected = $base->getVar($this->grid_params, 'filter-selected', array());
		$filters_arr['filter-grouping'] = $filter_grouping;
		$filters_arr['filter-listing'] = $listing_type;
		$filters_arr['filter-selected'] = array(); //always give empty array (metas ect. may still be checked if Grid was a post based grid before.

$navigation_c->set_filter_settings('filter', $filters_arr);

$nav_type = $base->getVar($this->grid_params, 'nagivation-type', 'internal');
		$do_nav = ($nav_type == 'internal') ? true : false;

$order_by = explode(',', $base->getVar($this->grid_params, 'sorting-order-by', 'date'));
		if(!is_array($order_by)) $order_by = array($order_by);
		$order_by_start = $base->getVar($this->grid_params, 'sorting-order-by-start', 'none');
		$order_by_dir = $base->getVar($this->grid_params, 'sorting-order-type', 'ASC');

$sort_by_text = $base->getVar($this->grid_params, 'sort-by-text', __('Sort By ', EG_TEXTDOMAIN));

$module_spacings = $base->getVar($this->grid_params, 'module-spacings', '5');

$top_1_align = $base->getVar($this->grid_params, 'top-1-align', 'center');
		$top_2_align = $base->getVar($this->grid_params, 'top-2-align', 'center');
		$bottom_1_align = $base->getVar($this->grid_params, 'bottom-1-align', 'center');
		$bottom_2_align = $base->getVar($this->grid_params, 'bottom-2-align', 'center');

$top_1_margin = $base->getVar($this->grid_params, 'top-1-margin-bottom', 0, 'i');
		$top_2_margin = $base->getVar($this->grid_params, 'top-2-margin-bottom', 0, 'i');
		$bottom_1_margin = $base->getVar($this->grid_params, 'bottom-1-margin-top', 0, 'i');
		$bottom_2_margin = $base->getVar($this->grid_params, 'bottom-2-margin-top', 0, 'i');

$left_margin = $base->getVar($this->grid_params, 'left-margin-left', 0, 'i');
		$right_margin = $base->getVar($this->grid_params, 'right-margin-right', 0, 'i');

$nav_styles['top-1'] = array('margin-bottom' => $top_1_margin.'px', 'text-align' => $top_1_align);
		$nav_styles['top-2'] = array('margin-bottom' => $top_2_margin.'px', 'text-align' => $top_2_align);
		$nav_styles['left'] = array('margin-left' => $left_margin.'px');
		$nav_styles['right'] = array('margin-right' => $right_margin.'px');
		$nav_styles['bottom-1'] = array('margin-top' => $bottom_1_margin.'px', 'text-align' => $bottom_1_align);
		$nav_styles['bottom-2'] = array('margin-top' => $bottom_2_margin.'px', 'text-align' => $bottom_2_align);

if($do_nav){ //only do if internal is selected
			$navigation_c->set_special_class('esg-fgc-'.$this->grid_id);
			$navigation_c->set_dropdown_text($filter_dropdown_text);
			$navigation_c->set_show_count($show_count);
			$navigation_c->set_filterall_visible($filterall_visible);
			$navigation_c->set_filter_text($filter_all_text);
			$navigation_c->set_specific_styles($nav_styles);
			$navigation_c->set_search_text($search_text);
			$navigation_c->set_layout($nav_layout); //set the layout

$navigation_c->set_orders($order_by); //set order of filter
			$navigation_c->set_orders_text($sort_by_text);
			$navigation_c->set_orders_start($order_by_start); //set order of filter
		}
        $item_skin->init_by_id($base->getVar($this->grid_params, 'entry-skin', 0, 'i'));

$lazy_load = $base->getVar($this->grid_params, 'lazy-loading', 'off');
		if($lazy_load == 'on'){
			$item_skin->set_lazy_load(true);
			$lazy_load_blur = $base->getVar($this->grid_params, 'lazy-loading-blur', 'on');
			if($lazy_load_blur == 'on')
				$item_skin->set_lazy_load_blur(true);
		}

//2.3.7 YouTube Playlist overview gets featured images media, not videos
		$default_media_source_order = $base->getVar($this->grid_postparams, 'media-source-order', '');
		if( $default_media_source_order[0] == 'youtube' && $base->getVar($this->grid_postparams, 'youtube-type-source', '') == 'playlist_overview' ){
				$default_media_source_order[0] = 'featured-image';
		}

$item_skin->set_default_media_source_order($default_media_source_order);

$default_lightbox_source_order = $base->getVar($this->grid_params, 'lb-source-order', '');
		$item_skin->set_default_lightbox_source_order($default_lightbox_source_order);

/* 2.2 */
		$item_skin->set_fancybox_three_options($base->getVar($this->grid_params, 'lightbox-title', 'off'));

$default_aj_source_order = $base->getVar($this->grid_params, 'aj-source-order', '');
		$item_skin->set_default_ajax_source_order($default_aj_source_order);

$post_media_source_type = $base->getVar($this->grid_postparams, 'image-source-type', 'full');

/* 2.2 */
		$default_lightbox_button_order = $base->getVar($this->grid_params, 'lb-button-order', array('share', 'thumbs', 'close'));

/* 2.1.6 */
		if(wp_is_mobile()) {
			$post_media_source_type = $base->getVar($this->grid_postparams, 'image-source-type-mobile', $post_media_source_type);
		}

$default_video_poster_order = $base->getVar($this->grid_params, 'poster-source-order', '');
		if($default_video_poster_order == '')
			$default_video_poster_order = $base->getVar($this->grid_postparams, 'poster-source-order', '');

$item_skin->set_default_video_poster_order($default_video_poster_order);

$layout = $base->getVar($this->grid_params, 'layout','even');
        $layout_sizing = $base->getVar($this->grid_params, 'layout-sizing', 'boxed');

$ajax_container_position = $base->getVar($this->grid_params, 'ajax-container-position', 'top');

if($layout_sizing !== 'fullwidth' && $layout == 'masonry'){
			$item_skin->set_poster_cropping(true);
		}

$skins_css = '';
		$skins_html = '';

$found_filter = array();
		$i = 1;
		$this->order_by_custom($order_by_start, $order_by_dir);

if($base->getVar($this->grid_postparams, 'source-type') == "stream" && $base->getVar($this->grid_postparams, 'stream-source-type') == "instagram" ){//&& $base->getVar($this->grid_postparams, 'instagram-type-source')=="mixed")
			if($order_by_start=="none"){
				$this->order_by_custom("date", "asc");
			}
			$this->grid_layers = array_slice($this->grid_layers,0,$base->getVar($this->grid_postparams, 'instagram-count'));
		}

if(!empty($this->grid_layers) && count($this->grid_layers) > 0){
			foreach($this->grid_layers as $key => $entry){
				$post_media_source_data = $base->get_custom_media_source_data($entry, $post_media_source_type);
				$post_video_ratios = $m->get_custom_video_ratios($entry);
				$filters = array();

if(is_array($order_by) && !empty($order_by)){
					$sort = $this->prepare_sorting_array_by_custom($entry, $order_by);
					$item_skin->set_sorting($sort);
				}
				if(!empty($entry['custom-filter'])){
					$cats = explode(',', $entry['custom-filter']);
					if(!is_array($cats)) $cats = (array)$cats;
					foreach($cats as $category){
						$filters[sanitize_key($category)] = array('name' => $category, 'slug' => sanitize_key($category));
					}
				}

$found_filter = $found_filter + $filters; //these are the found filters, only show filter that the posts have

//switch to different skin
				$use_item_skin_id = $base->getVar($entry, 'use-skin', '-1');
				if(intval($use_item_skin_id) === 0){
					$use_item_skin_id = -1;
				}
				$item_skin->switch_item_skin($use_item_skin_id);
				$item_skin->register_layer_css();
				$item_skin->register_skin_css();

if($i > $post_limit){
					$this->load_more_post_array[$key] = $filters; //set for load more, only on elements that will not be loaded from beginning
					continue; //Load only selected numbers of items at start (for load more)
				}
				$i++;

$item_skin->set_filter($filters);
				$item_skin->set_media_sources($post_media_source_data);
				$item_skin->set_media_sources_type($post_media_source_type);
				$item_skin->set_video_ratios($post_video_ratios);
				$item_skin->set_layer_values($entry);

/* 2.1.5 */
				$item_skin->set_default_image_by_id($base->getVar($this->grid_postparams, 'default-image', 0, 'i'));

// 2.1.6.2
				$item_skin->set_grid_item_animation($base, $this->grid_params);

// 2.2.6
				$item_skin->set_post_values($entry);

ob_start();
				$item_skin->output_item_skin($grid_preview);
				$skins_html.= ob_get_contents();
				ob_clean();
				ob_end_clean();

// 2.2.6
				//if($only_elements == false && $grid_preview == false){
					$id = (isset($entry['post_id'])) ? $entry['post_id'] : '';
					if(!empty($id)) {
						ob_start();
						$item_skin->output_element_css_by_meta($id);
						$skins_css.= ob_get_contents();
						ob_clean();
						ob_end_clean();
					}
				//}

}
		}

if($grid_preview !== false && $only_elements == false){ //add the add more box at the end
			ob_start();
			$item_skin->output_add_more();
			$skins_html.= ob_get_contents();
			ob_clean();
			ob_end_clean();
		}

if($do_nav){ //only do if internal is selected
			$navigation_c->set_filter($found_filter); //set filters $nav_filters $found_filter
			$navigation_c->set_filter_type($filter_allow);
			$navigation_c->set_filter_start_select($filter_start);
		}

if($only_elements == false){
			ob_start();
			$item_skin->generate_element_css($grid_preview);
			$skins_css.= ob_get_contents();
			ob_clean();
			ob_end_clean();

if($do_nav){ //only do if internal is selected
				$navigation_skin = $base->getVar($this->grid_params, 'navigation-skin', 'minimal-light');
				echo $navigation_c->output_navigation_skin($navigation_skin);
			}

echo $skins_css;

if($item_skin->ajax_loading == true && $ajax_container_position == 'top'){
				echo $this->output_ajax_container();
			}

$this->output_wrapper_pre($grid_preview);

if($do_nav){ //only do if internal is selected
				$navigation_c->output_layout('top-1', $module_spacings);
				$navigation_c->output_layout('top-2', $module_spacings);
			}

$this->output_grid_pre();
		}

if(!$from_ajax) {
			echo $skins_html;
		}
		else {
			return $skins_html;
		}

if($only_elements == false){
			$this->output_grid_post();

if($do_nav){ //only do if internal is selected
				$navigation_c->output_layout('bottom-1', $module_spacings);
				$navigation_c->output_layout('bottom-2', $module_spacings);
				$navigation_c->output_layout('left');
				$navigation_c->output_layout('right');

//check if search was added. If yes, we also need to add the "Filter All" filter if not existing
				echo $navigation_c->check_for_search();
			}

$this->output_wrapper_post();

if($item_skin->ajax_loading == true && $ajax_container_position == 'bottom'){
				echo $this->output_ajax_container();
			}

$load_lightbox = $item_skin->do_lightbox_loading();

if($grid_preview === false){
				$this->output_grid_javascript($load_lightbox);
			}elseif($grid_preview !== 'preview' && $grid_preview !== 'custom'){
				$this->output_grid_javascript($load_lightbox, true);
			}

do_action('essgrid_output_by_custom_post', $this, $grid_preview, $only_elements);
		}
	}

/**
	 * Output by posts
	 */
	public function output_by_posts($grid_preview = false){

global $sitepress;

do_action('essgrid_output_by_posts_pre', $this, $grid_preview);

$post_limit = 99999;

$base = new Essential_Grid_Base();
		$navigation_c = new Essential_Grid_Navigation($this->grid_id);
		$meta_c = new Essential_Grid_Meta();
		$meta_link_c = new Essential_Grid_Meta_Linking();
		$item_skin = new Essential_Grid_Item_Skin();
		$item_skin->grid_id = $this->grid_id;
		$item_skin->set_grid_type($base->getVar($this->grid_params, 'layout','even'));

// 2.1.6.2
		$item_skin->set_grid_item_animation($base, $this->grid_params);

$m = new Essential_Grid_Meta();

$skins_html = '';
		$skins_css = '';
		$filters = array();

if($rows_unlimited == 'on' && $load_more !== 'none' && $grid_preview == false){ //grid_preview means disable load more in preview
			$post_limit = $load_more_start;
		}

$start_sortby = $base->getVar($this->grid_params, 'sorting-order-by-start', 'none');

$start_sortby_type = $base->getVar($this->grid_params, 'sorting-order-type', 'ASC');

$post_category = $base->getVar($this->grid_postparams, 'post_category');
		$post_types = $base->getVar($this->grid_postparams, 'post_types');
		$page_ids = explode(',', $base->getVar($this->grid_postparams, 'selected_pages', '-1'));
		$cat_relation = $base->getVar($this->grid_postparams, 'category-relation', 'OR');

$max_entries = $this->get_maximum_entries($this);

$additional_query = $base->getVar($this->grid_postparams, 'additional-query', '');
		if($additional_query !== '')
			$additional_query = wp_parse_args($additional_query);

$cat_tax = array('cats' => '', 'tax' => '');

if($this->custom_posts !== null){ //output by specific set posts

$posts = Essential_Grid_Base::get_posts_by_ids($this->custom_posts, $start_sortby, $start_sortby_type);

$cat_tax_obj = Essential_Grid_Base::get_categories_by_posts($posts);

if(!empty($cat_tax_obj)){
				$cat_tax['cats'] = Essential_Grid_Base::translate_categories_to_string($cat_tax_obj);
			}
			//$cat_tax = Essential_Grid_Base::getCatAndTaxData($post_category); //get cats by posts

}elseif($this->custom_special !== null){ //output by some special rule

$max_entries = intval($base->getVar($this->grid_params, 'max-entries', '20'));
			if($max_entries == 0) $max_entries = 20;

switch($this->custom_special){
				case 'related':
					$posts = Essential_Grid_Base::get_related_posts($max_entries);
				break;
				case 'popular':
					$posts = Essential_Grid_Base::get_popular_posts($max_entries);
				break;
				case 'latest':
				default:
					$posts = Essential_Grid_Base::get_latest_posts($max_entries);
				break;
			}

$cat_tax_obj = Essential_Grid_Base::get_categories_by_posts($posts);

if(!empty($cat_tax_obj)){
				$cat_tax['cats'] = Essential_Grid_Base::translate_categories_to_string($cat_tax_obj);
			}

//$cat_tax = Essential_Grid_Base::getCatAndTaxData($post_category);  //get cats by posts

}else{ //output with the grid settings from an existing grid

$cat_tax = Essential_Grid_Base::getCatAndTaxData($post_category);

$posts = Essential_Grid_Base::getPostsByCategory($this->grid_id, $cat_tax['cats'], $post_types, $cat_tax['tax'], $page_ids, $start_sortby, $start_sortby_type, $max_entries, $additional_query, true, $cat_relation);

}

$nav_type = $base->getVar($this->grid_params, 'nagivation-type', 'internal');
		$do_nav = ($nav_type == 'internal') ? true : false;

$order_by = explode(',', $base->getVar($this->grid_params, 'sorting-order-by', 'date'));

if(!is_array($order_by)) $order_by = array($order_by);
		$order_by_start = $base->getVar($this->grid_params, 'sorting-order-by-start', 'none');
		if(strpos($order_by_start, 'eg-') === 0 || strpos($order_by_start, 'egl-') === 0){ //add meta at the end for meta sorting
			//if essential Meta, replace to meta name. Else -> replace - and _ with space, set each word uppercase
			$metas = $m->get_all_meta();
			$f = false;
			if(!empty($metas)){
				foreach($metas as $meta){
					if('eg-'.$meta['handle'] == $order_by_start || 'egl-'.$meta['handle'] == $order_by_start){
						$f = true;
						$order_by_start = $meta['name'];
						break;
					}
				}
			}

if($f === false){
				$order_by_start = ucwords(str_replace(array('-', '_'), array(' ', ' '), $order_by_start));
			}
		}

$sort_by_text = $base->getVar($this->grid_params, 'sort-by-text', __('Sort By ', EG_TEXTDOMAIN));
		$search_text = $base->getVar($this->grid_params, 'search-text', __('Search...', EG_TEXTDOMAIN));

$module_spacings = $base->getVar($this->grid_params, 'module-spacings', '5');

$left_margin = $base->getVar($this->grid_params, 'left-margin-left', 0, 'i');
		$right_margin = $base->getVar($this->grid_params, 'right-margin-right', 0, 'i');

$ajax_container_position = $base->getVar($this->grid_params, 'ajax-container-position', 'top');

if($do_nav){ //only do if internal is selected
			$navigation_c->set_special_class('esg-fgc-'.$this->grid_id);

$filters_meta = array();
			$filters_extra = array();

foreach($this->grid_params as $gkey => $gparam){

if(strpos($gkey, 'filter-selected') === false) continue;

$fil_id = intval(str_replace('filter-selected-', '', $gkey));
				$fil_id = ($fil_id == 0) ? '' : '-'.$fil_id;
				$filters_arr = array();

$filters_arr['filter'.$fil_id]['filter-grouping'] = $base->getVar($this->grid_params, 'filter-grouping'.$fil_id, 'false');
				$filters_arr['filter'.$fil_id]['filter-listing'] = $base->getVar($this->grid_params, 'filter-listing'.$fil_id, 'list');
				$filters_arr['filter'.$fil_id]['filter-selected'] = $base->getVar($this->grid_params, 'filter-selected'.$fil_id, array());

$filterall_visible = $base->getVar($this->grid_params, 'filter-all-visible'.$fil_id, 'on');
				$filter_all_text = $base->getVar($this->grid_params, 'filter-all-text'.$fil_id, __('Filter - All', EG_TEXTDOMAIN));
				$filter_dropdown_text = $base->getVar($this->grid_params, 'filter-dropdown-text'.$fil_id, __('Filter Categories', EG_TEXTDOMAIN));
				$show_count = $base->getVar($this->grid_params, 'filter-counter'.$fil_id, 'off');

if(!empty($filters_arr['filter'.$fil_id]['filter-selected'])){
					if(!empty($posts) && count($posts) > 0){
						foreach($filters_arr['filter'.$fil_id]['filter-selected'] as $fk => $filter){
							if(strpos($filter, 'meta-') === 0){
								unset($filters_arr['filter'.$fil_id]['filter-selected'][$fk]); //delete entry

foreach($posts as $key => $post){
									$fil = str_replace('meta-', '', $filter);
									$post_filter_meta = $meta_c->get_meta_value_by_handle($post['ID'], 'eg-'.$fil);
									if($post_filter_meta == ''){ //check if we are linking
										$post_filter_meta = $meta_link_c->get_link_meta_value_by_handle($post['ID'], 'egl-'.$fil);
									}
									$arr = json_decode($post_filter_meta, true);
									$cur_filter = (is_array($arr)) ? $arr : array($post_filter_meta);
									//$cur_filter = explode(',', $post_filter_meta);
									$add_filter = array();
									if(!empty($cur_filter)){
										foreach($cur_filter as $k => $v){
											if(trim($v) !== ''){
												$add_filter[sanitize_key($v)] = array('name' => $v, 'slug' => sanitize_key($v), 'parent' => '0');
												if(!empty($filters_arr['filter'.$fil_id]['filter-selected'])){
													$filter_found = false;
													foreach($filters_arr['filter'.$fil_id]['filter-selected'] as $fcheck){
														if($fcheck == sanitize_key($v)){
															$filter_found = true;
															break;
														}
													}
													if(!$filter_found){
														$filters_arr['filter'.$fil_id]['filter-selected'][] = sanitize_key($v); //add found meta
													}
												}else{
													$filters_arr['filter'.$fil_id]['filter-selected'][] = sanitize_key($v); //add found meta
												}
											}
										}
										$filters_meta = $filters_meta + $add_filter;

if(!empty($add_filter)) $navigation_c->set_filter($add_filter);
									}
								}
							}
						}
					}
					$filters_extra = $filters_arr['filter'.$fil_id]['filter-selected'] + $filters_extra;
				}

$navigation_c->set_filter_settings('filter'.$fil_id, $filters_arr['filter'.$fil_id]);

$navigation_c->set_filter_text($filter_all_text, $fil_id);
				$navigation_c->set_filterall_visible($filterall_visible, $fil_id);
				$navigation_c->set_dropdown_text($filter_dropdown_text, $fil_id);
				$navigation_c->set_show_count($show_count, $fil_id);
			}

$navigation_c->set_filter_type($filter_allow);
			$navigation_c->set_filter_start_select($filter_start);
			$navigation_c->set_specific_styles($nav_styles);

$navigation_c->set_layout($nav_layout); //set the layout

$navigation_c->set_orders($order_by); //set order of filter
			$navigation_c->set_orders_text($sort_by_text); //set order of filter
			$navigation_c->set_orders_start($order_by_start); //set order of filter
			$navigation_c->set_search_text($search_text);
		}

$nav_filters = array();

$taxes = array('post_tag');
		if(!empty($cat_tax['tax']))
			$taxes = explode(',', $cat_tax['tax']);

if(!empty($cat_tax['cats'])){
			$cats = explode(',', $cat_tax['cats']);

foreach($cats as $key => $id){
				if(Essential_Grid_Wpml::is_wpml_exists() && isset($sitepress)){
					$new_id = icl_object_id($id, 'category', true, $sitepress->get_default_language());
					$cat = get_category($new_id);
				}else{
					$cat = get_category($id);
				}
				if(is_object($cat)){
					$nav_filters[$id] = array('name' => $cat->cat_name, 'slug' => sanitize_key($cat->slug), 'parent' => $cat->category_parent);
				}

foreach($taxes as $custom_tax){
					$term = get_term_by('id', $id, $custom_tax);
					if(is_object($term)) $nav_filters[$id] = array('name' => $term->name, 'slug' => sanitize_key($term->slug), 'parent' => $term->parent);
				}
			}

if(!empty($filters_meta)){
				$nav_filters = $filters_meta + $nav_filters;
			}
			if(!empty($add_filter)){
				$nav_filters = $nav_filters + $add_filter;
			}
			asort($nav_filters);
		}

$item_skin->init_by_id($base->getVar($this->grid_params, 'entry-skin', 0, 'i'));

$default_media_source_order = $base->getVar($this->grid_postparams, 'media-source-order', '');
		$item_skin->set_default_media_source_order($default_media_source_order);

$default_lightbox_source_order = $base->getVar($this->grid_params, 'lb-source-order', '');
		$item_skin->set_default_lightbox_source_order($default_lightbox_source_order);

$default_aj_source_order = $base->getVar($this->grid_params, 'aj-source-order', '');
		$item_skin->set_default_ajax_source_order($default_aj_source_order);

$lightbox_mode = $base->getVar($this->grid_params, 'lightbox-mode', 'single');
		$lightbox_include_media = $base->getVar($this->grid_params, 'lightbox-exclude-media', 'off');

/* 2.2 */
		$item_skin->set_fancybox_three_options($base->getVar($this->grid_params, 'lightbox-title', 'off'));

$default_lightbox_button_order = $base->getVar($this->grid_params, 'lb-button-order', array('share', 'thumbs', 'close'));

$post_media_source_type = $base->getVar($this->grid_postparams, 'image-source-type', 'full');

/* 2.1.6 */
		if(wp_is_mobile()) {
			$post_media_source_type = $base->getVar($this->grid_postparams, 'image-source-type-mobile', $post_media_source_type);
		}

$item_skin->set_default_video_poster_order($default_video_poster_order);

$layout = $base->getVar($this->grid_params, 'layout','even');
        $layout_sizing = $base->getVar($this->grid_params, 'layout-sizing', 'boxed');

if($layout_sizing !== 'fullwidth' && $layout == 'masonry'){
			$item_skin->set_poster_cropping(true);
		}

$found_filter = array();
		$i = 1;

/*if($lightbox_mode == 'content' || $lightbox_mode == 'content-gallery' || $lightbox_mode == 'woocommerce-gallery'){
			$item_skin->set_lightbox_rel('ess-'.$this->grid_id);
		}
		*/
		if(!empty($posts) && count($posts) > 0){
			foreach($posts as $key => $post){
				if($grid_preview == false){
					//check if post should be visible or if its invisible on current grid settings
					$is_visible = $this->check_if_visible($post['ID'], $this->grid_id);
					if($is_visible == false) continue; // continue if invisible
				}

if($lightbox_mode == 'content' || $lightbox_mode == 'content-gallery' || $lightbox_mode == 'woocommerce-gallery'){
					//$item_skin->set_lightbox_rel('ess-'.$this->grid_id);
					$item_skin->set_lightbox_rel('ess-'.$post['ID']);
				}

$post_media_source_data = $base->get_post_media_source_data($post['ID'], $post_media_source_type);
				$post_video_ratios = $m->get_post_video_ratios($post['ID']);
				$filters = array();

//$categories = get_the_category($post['ID']);
				$categories = $base->get_custom_taxonomies_by_post_id($post['ID']);
				//$tags = wp_get_post_terms($post['ID']);
				$tags = get_the_tags($post['ID']);

if(!empty($categories)){
					foreach($categories as $key => $category){
						$filters[$category->term_id] = array('name' => $category->name, 'slug' => sanitize_key($category->slug), 'parent' => $category->parent);
					}
				}

if(!empty($tags)){
					foreach($tags as $key => $taxonomie){
						$filters[$taxonomie->term_id] = array('name' => $taxonomie->name, 'slug' => sanitize_key($taxonomie->slug), 'parent' => '0');
					}
				}

foreach($this->grid_params as $gp_handle => $gp_values){
					if(strpos($gp_handle, 'filter-selected') !== 0) continue;

$filter_meta_selected = $base->getVar($this->grid_params, $gp_handle, array());

if(!empty($filter_meta_selected)){
						foreach($filter_meta_selected as $filter){
							if(strpos($filter, 'meta-') === 0){
								$fil = str_replace('meta-', '', $filter);
								$post_filter_meta = $meta_c->get_meta_value_by_handle($post['ID'], 'eg-'.$fil);
								if($post_filter_meta == ''){ //check if we are linking
									$post_filter_meta = $meta_link_c->get_link_meta_value_by_handle($post['ID'], 'egl-'.$fil, 'asd');
								}

$arr = json_decode($post_filter_meta, true);
								$cur_filter = (is_array($arr)) ? $arr : array($post_filter_meta);
								//$cur_filter = explode(',', $post_filter_meta);
								if(!empty($cur_filter)){
									foreach($cur_filter as $k => $v){
										if(trim($v) !== '')
											$filters[sanitize_key($v)] = array('name' => $v, 'slug' => sanitize_key($v), 'parent' => '0');
									}
								}
							}
						}
					}
				}

if(is_array($order_by) && !empty($order_by)){
					$sort = $this->prepare_sorting_array_by_post($post, $order_by);
					$item_skin->set_sorting($sort);

}

$found_filter = $found_filter + $filters; //these are the found filters, only show filter that the posts have

//switch to different skin
				$use_item_skin_id = json_decode(get_post_meta($post['ID'], 'eg_use_skin', true), true);
				if($use_item_skin_id !== false && isset($use_item_skin_id[$this->grid_id]['use-skin'])){
					$use_item_skin_id = $use_item_skin_id[$this->grid_id]['use-skin'];
				}else{
					$use_item_skin_id = -1;
				}

$use_item_skin_id = apply_filters('essgrid_modify_post_item_skin', $use_item_skin_id, $post, $this->grid_id);

$item_skin->switch_item_skin($use_item_skin_id);
				$item_skin->register_layer_css();
				$item_skin->register_skin_css();

if($i > $post_limit){
					$this->load_more_post_array[$post['ID']] = $filters; //set for load more, only on elements that will not be loaded from beginning
					continue; //Load only selected numbers of items at start (for load more)
				}
				$i++;

if($lightbox_mode == 'content' || $lightbox_mode == 'content-gallery' || $lightbox_mode == 'woocommerce-gallery'){
					$lb_add_images = array();
					$lb_add_images_thumb = array();
					switch($lightbox_mode){
						case 'content':
							$lb_add_images = $base->get_all_content_images($post['ID']);
							$lb_add_images_thumb = $base->get_all_content_images($post['ID'], false, 'thumbnail');
						break;
						case 'content-gallery':
							$lb_add_images = $base->get_all_gallery_images($post['post_content'], true);
							$lb_add_images_thumb = $base->get_all_gallery_images($post['post_content'], true, 'thumbnail');
						break;
						case 'woocommerce-gallery':
							if(Essential_Grid_Woocommerce::is_woo_exists()){
								$lb_add_images = Essential_Grid_Woocommerce::get_image_attachements($post['ID'], true);
								$lb_add_images_thumb = Essential_Grid_Woocommerce::get_image_attachements($post['ID'], true, 'thumbnail');
							}
						break;
					}

$item_skin->set_lightbox_addition(array('items' => $lb_add_images, 'thumbs' => $lb_add_images_thumb, 'base' => $lightbox_include_media));

}

ob_start();
				$item_skin->output_item_skin($grid_preview);
				$skins_html.= ob_get_contents();
				ob_clean();
				ob_end_clean();

// 2.2.6
				//if($grid_preview == false){
					ob_start();
					$item_skin->output_element_css_by_meta($post['ID']);
					$skins_css.= ob_get_contents();
					ob_clean();
					ob_end_clean();
				//}
			}
		}else{
			return false;
		}

if(!empty($filters_extra)){
			foreach($filters_extra as $f_extra){
				$f_extra = explode('_', $f_extra);
				if(is_array($f_extra) && !empty($f_extra)){
					$cid = end($f_extra);
					if(Essential_Grid_Wpml::is_wpml_exists() && isset($sitepress)){
						$new_id = icl_object_id($cid, 'category', true, $sitepress->get_default_language());
						$ncat = get_category($new_id);
						if(!is_wp_error($ncat) && !is_null($ncat)){
							$found_filter[$ncat->term_id] = array('name' => $ncat->name, 'slug' => $ncat->slug, 'parent' => $ncat->{'parent'});
							$nav_filters[$ncat->term_id] = array('name' => $ncat->name, 'slug' => $ncat->slug, 'parent' => $ncat->{'parent'});
						}
					}else{
						/* 2.1.5 */
						$ncat = get_category($cid);
						if(empty($ncat)) $ncat = get_tag($cid);
						if(!is_wp_error($ncat) && !empty($ncat)){
							$found_filter[$ncat->term_id] = array('name' => $ncat->name, 'slug' => $ncat->slug, 'parent' => $ncat->{'parent'});
							$nav_filters[$ncat->term_id] = array('name' => $ncat->name, 'slug' => $ncat->slug, 'parent' => $ncat->{'parent'});
						}
					}
				}
			}
		}

$remove_filter = array_diff_key($nav_filters, $found_filter); //check if we have filter that no post has (comes through multilanguage)
		if(!empty($remove_filter)){
			foreach($remove_filter as $key => $rem){ //we have, so remove them from the filter list before setting the filter list
				unset($nav_filters[$key]);
			}
		}

if($do_nav){ //only do if internal is selected
			$navigation_c->set_filter($nav_filters); //set filters $nav_filters $found_filter
			$navigation_c->set_filter_type($filter_allow);
			$navigation_c->set_filter_start_select($filter_start);
		}

ob_start();
		$item_skin->generate_element_css();
		$skins_css.= ob_get_contents();
		ob_clean();
		ob_end_clean();

if($do_nav){ //only do if internal is selected
			$found_skin = array();
			$navigation_skin = $base->getVar($this->grid_params, 'navigation-skin', 'minimal-light');
			$navigation_special_skin = $base->getVar($this->grid_params, 'navigation-special-skin', array());
			ob_start();
			echo $navigation_c->output_navigation_skin($navigation_skin);
			$found_skin[$navigation_skin] = true;

if(!empty($navigation_special_skin)){
				foreach($navigation_special_skin as $spec_skin){
					if(!isset($found_skin[$spec_skin])){
						echo $navigation_c->output_navigation_skin($spec_skin);
						$found_skin[$spec_skin] = true;
					}
				}
			}
			$nav_css = ob_get_contents();
			ob_clean();
			ob_end_clean();

echo $nav_css;
		}

echo $skins_css;

if($item_skin->ajax_loading == true && $ajax_container_position == 'top'){
			echo $this->output_ajax_container();
		}

$this->output_wrapper_pre($grid_preview);
		if($do_nav){ //only do if internal is selected
			$navigation_c->output_layout('top-1', $module_spacings);
			$navigation_c->output_layout('top-2', $module_spacings);
		}

$this->output_grid_pre();

echo $skins_html;

$this->output_grid_post();
		if($do_nav){ //only do if internal is selected
			$navigation_c->output_layout('bottom-1', $module_spacings);
			$navigation_c->output_layout('bottom-2', $module_spacings);
			$navigation_c->output_layout('left');
			$navigation_c->output_layout('right');

//check if search was added. If yes, we also need to add the "Filter All" filter if not existing
			echo $navigation_c->check_for_search();
		}

$this->output_wrapper_post();

if($item_skin->ajax_loading == true && $ajax_container_position == 'bottom'){
			echo $this->output_ajax_container();
		}

$load_lightbox = $item_skin->do_lightbox_loading();

if($grid_preview === false){
			$this->output_grid_javascript($load_lightbox);
		}elseif($grid_preview !== 'preview'){
			$this->output_grid_javascript($load_lightbox, true);
		}

do_action('essgrid_output_by_posts_post', $this, $grid_preview);
	}

/**
	 * Output by specific posts for load more
	 */
	public function output_by_specific_posts(){
		do_action('essgrid_output_by_specific_posts_pre', $this);

$base = new Essential_Grid_Base();
		$item_skin = new Essential_Grid_Item_Skin();
		$item_skin->grid_id = $this->grid_id;
		$item_skin->set_grid_type($base->getVar($this->grid_params, 'layout','even'));
		$meta_c = new Essential_Grid_Meta();
		$meta_link_c = new Essential_Grid_Meta_Linking();

$item_skin->set_default_image_by_id($base->getVar($this->grid_postparams, 'default-image', 0, 'i'));

// 2.1.6.2
		$item_skin->set_grid_item_animation($base, $this->grid_params);

$m = new Essential_Grid_Meta();

$start_sortby = $base->getVar($this->grid_params, 'sorting-order-by-start', 'none');

$start_sortby_type = $base->getVar($this->grid_params, 'sorting-order-type', 'ASC');

if(!empty($this->filter_by_ids)){
			$posts = Essential_Grid_Base::get_posts_by_ids($this->filter_by_ids, $start_sortby, $start_sortby_type);
		}else{
			return false;
		}

$item_skin->init_by_id($base->getVar($this->grid_params, 'entry-skin', 0, 'i'));
		$order_by = explode(',', $base->getVar($this->grid_params, 'sorting-order-by', 'date'));
		if(!is_array($order_by)) $order_by = array($order_by);