/**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     $atts = shortcode_atts(array('email' => get_option('admin_email'), 'button' => __("Submit", 'avia_framework'), 'autorespond' => '', 'captcha' => '', 'subject' => '', 'sent' => __("Your message has been sent!", 'avia_framework'), 'title' => __("Send us mail", 'avia_framework')), $atts);
     extract($atts);
     $post_id = function_exists('avia_get_the_id') ? avia_get_the_id() : get_the_ID();
     $form_args = array("heading" => $title ? "<h3>" . $title . "</h3>" : "", "success" => "<h3 class='avia-form-success'>" . $sent . "</h3>", "submit" => $button, "myemail" => $email, "action" => get_permalink($post_id), "myblogname" => get_option('blogname'), "autoresponder" => $autorespond, "autoresponder_subject" => __('Thank you for your Message!', 'avia_framework'), "autoresponder_email" => $email, "subject" => $subject, "form_class" => $meta['el_class'], "multiform" => true, "label_first" => true);
     if (trim($form_args['myemail']) == '') {
         $form_args['myemail'] = get_option('admin_email');
     }
     //form fields passed by the user
     $form_fields = $this->helper_array2form_fields(ShortcodeHelper::shortcode2array($content));
     //fake username field that is not visible. if the field has a value a spam bot tried to send the form
     $elements['avia_username'] = array('type' => 'decoy', 'label' => '', 'check' => 'must_empty');
     //captcha field for the user to verify that he is real
     if ($captcha) {
         $elements['avia_age'] = array('type' => 'captcha', 'check' => 'captcha', 'label' => __('Please prove that you are human by solving the equation', 'avia_framework'));
     }
     //merge all fields
     $form_fields = apply_filters('avia_contact_form_elements', array_merge($form_fields, $elements));
     $form_args = apply_filters('avia_contact_form_args', $form_args);
     $contact_form = new avia_form($form_args);
     $contact_form->create_elements($form_fields);
     $output = $contact_form->display_form(true);
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     extract(shortcode_atts(array('position' => 'left'), $atts));
     $icon_el = $this->elements[0]['subelements'][4];
     $chars = $icon_el['chars'];
     if (!is_array($chars)) {
         include $icon_el['chars'];
     }
     $bars = ShortcodeHelper::shortcode2array($content);
     $output = "";
     if (!empty($bars)) {
         $output .= "<div class='avia-progress-bar-container avia_animate_when_almost_visible " . $meta['el_class'] . "'>";
         $defaults = array('color' => 'theme-color', 'progress' => "100", 'title' => "", 'icon' => 1, "icon_select" => "no");
         foreach ($bars as $bar) {
             $bar['attr'] = array_merge($defaults, $bar['attr']);
             $display_char = isset($chars[$bar['attr']['icon'] - 1]) ? $chars[$bar['attr']['icon'] - 1] : $chars[0];
             $output .= "<div class='avia-progress-bar " . $bar['attr']['color'] . "-bar icon-bar-" . $bar['attr']['icon_select'] . "'>";
             if ($bar['attr']['icon_select'] == "yes" || $bar['attr']['title']) {
                 $output .= "<div class='progressbar-title-wrap'>";
                 $output .= "<div class='progressbar-icon avia-font-" . $icon_el['font'] . "'><span class='progressbar-char'>{$display_char}</span></div>";
                 $output .= "<div class='progressbar-title'>" . $bar['attr']['title'] . "</div>";
                 $output .= "</div>";
             }
             $output .= "<div class='progress'><div class='bar-outer'><div class='bar' style='width: " . $bar['attr']['progress'] . "%' data-progress='" . $bar['attr']['progress'] . "'></div></div></div>";
             $output .= "</div>";
         }
         $output .= "</div>";
     }
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     extract(shortcode_atts(array('position' => 'left', 'bar_styling' => 'av-striped-bar', 'bar_animation' => 'av-animated-bar'), $atts, $this->config['shortcode']));
     $bars = ShortcodeHelper::shortcode2array($content);
     $extraClass = $bar_styling . " " . $bar_animation;
     $output = "";
     if (!empty($bars)) {
         $output .= "<div class='avia-progress-bar-container avia_animate_when_almost_visible " . $meta['el_class'] . " {$extraClass}'>";
         $defaults = array('color' => 'theme-color', 'progress' => "100", 'title' => "", 'icon' => '', 'font' => '', "icon_select" => "no");
         foreach ($bars as $bar) {
             $bar['attr'] = array_merge($defaults, $bar['attr']);
             $display_char = av_icon($bar['attr']['icon'], $bar['attr']['font']);
             $output .= "<div class='avia-progress-bar " . $bar['attr']['color'] . "-bar icon-bar-" . $bar['attr']['icon_select'] . "'>";
             if ($bar['attr']['icon_select'] == "yes" || $bar['attr']['title']) {
                 $output .= "<div class='progressbar-title-wrap'>";
                 $output .= "<div class='progressbar-icon'><span class='progressbar-char' {$display_char}></span></div>";
                 $output .= "<div class='progressbar-title'>" . $bar['attr']['title'] . "</div>";
                 $output .= "</div>";
             }
             $output .= "<div class='progress'><div class='bar-outer'><div class='bar' style='width: " . $bar['attr']['progress'] . "%' data-progress='" . $bar['attr']['progress'] . "'></div></div></div>";
             $output .= "</div>";
         }
         $output .= "</div>";
     }
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     extract(shortcode_atts(array('title' => ''), $atts, $this->config['shortcode']));
     $output = "";
     $output .= "<div class='av-catalogue-container " . $meta['el_class'] . "'>";
     $output .= "<ul class='av-catalogue-list'>";
     $output .= ShortcodeHelper::avia_remove_autop($content, true);
     $output .= "</ul>";
     $output .= "</div>";
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     $custom_class = !empty($meta['custom_class']) ? $meta['custom_class'] : "";
     $output = '';
     $markup = avia_markup_helper(array('context' => 'entry', 'echo' => false, 'custom_markup' => $meta['custom_markup']));
     $markup_text = avia_markup_helper(array('context' => 'entry_content', 'echo' => false, 'custom_markup' => $meta['custom_markup']));
     $output .= '<section class="av_textblock_section" ' . $markup . '>';
     $output .= "<div class='avia_textblock {$custom_class}' {$markup_text}>" . ShortcodeHelper::avia_apply_autop(ShortcodeHelper::avia_remove_autop($content)) . "</div>";
     $output .= '</section>';
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element 
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string 
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     $atts = shortcode_atts(array('size' => 'featured', 'animation' => 'slide', 'ids' => '', 'autoplay' => 'false', 'interval' => 5, 'handle' => $shortcodename, 'src' => '', 'position' => 'top left', 'repeat' => 'no-repeat', 'attach' => 'scroll', 'stretch' => '', 'content' => ShortcodeHelper::shortcode2array($content)), $atts);
     extract($atts);
     $output = "";
     $background = "";
     $class = "";
     if ($src != "") {
         if ($repeat == 'stretch') {
             $background .= "background-repeat: no-repeat; ";
             $class .= " avia-full-stretch";
         } else {
             $background .= "background-repeat: {$repeat}; ";
         }
         $background .= "background-image: url({$src}); ";
         $background .= "background-attachment: {$attach}; ";
         $background .= "background-position: {$position}; ";
     }
     if ($background) {
         $params['bg'] = "style = '{$background}'";
     }
     $skipSecond = false;
     avia_sc_slider_full::$slide_count++;
     $params['class'] = "avia-fullwidth-slider main_color avia-shadow " . $meta['el_class'] . $class;
     $params['open_structure'] = false;
     if ($meta['index'] == 0) {
         $params['close'] = false;
     }
     if ($meta['index'] != 0) {
         $params['class'] .= " slider-not-first";
     }
     if ($meta['index'] == 0 && get_post_meta(get_the_ID(), 'header', true) != "no") {
         $params['class'] .= " slider-not-first";
     }
     $params['id'] = "full_slider_" . avia_sc_slider_full::$slide_count;
     $output .= avia_new_section($params);
     $slider = new avia_slideshow($atts);
     $slider->set_extra_class($stretch);
     $output .= $slider->html();
     $output .= "</div>";
     //close section
     //if the next tag is a section dont create a new section from this shortcode
     if (!empty($meta['siblings']['next']['tag']) && in_array($meta['siblings']['next']['tag'], array('av_layerslider', 'av_section', 'av_slideshow_full', 'av_fullscreen'))) {
         $skipSecond = true;
     }
     //if there is no next element dont create a new section.
     if (empty($meta['siblings']['next']['tag'])) {
         $skipSecond = true;
     }
     if (empty($skipSecond)) {
         $output .= avia_new_section(array('close' => false, 'id' => "after_full_slider_" . avia_sc_slider_full::$slide_count));
     }
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     $output = "";
     if (!isset($atts['widget_area'])) {
         return $output;
     }
     if (is_dynamic_sidebar($atts['widget_area'])) {
         ob_start();
         dynamic_sidebar($atts['widget_area']);
         $output = ShortcodeHelper::avia_remove_autop(ob_get_clean(), true);
         if ($output) {
             $output = "<div class='avia-builder-widget-area clearfix " . $meta['el_class'] . "'>" . $output . "</div>";
         }
     }
     return $output;
 }

 /**
  *creates the shortcode pattern that only matches Avia Builder Shortcodes
  **/
 static function build_pattern($predefined_tags = false)
 {
     global $shortcode_tags;
     //save the "real" shortcode array
     $old_sc = $shortcode_tags;
     //if we got allowed shortcodes build the pattern. nested shortcodes are also considered but within a separate array
     if (!empty(ShortcodeHelper::$allowed_shortcodes)) {
         $shortcode_tags = array_flip(array_merge(ShortcodeHelper::$allowed_shortcodes, ShortcodeHelper::$nested_shortcodes));
     }
     //filter out all elements that are not in the predefined tags array. this is necessary for nested shortcode modal to work properly
     if (is_array($predefined_tags)) {
         $predefined_tags = array_flip($predefined_tags);
         $shortcode_tags = shortcode_atts($predefined_tags, $shortcode_tags);
     }
     //create the pattern and store it
     ShortcodeHelper::$pattern = get_shortcode_regex();
     //restore original shortcode tags
     $shortcode_tags = $old_sc;
     return ShortcodeHelper::$pattern;
 }

 function pre_compile($content)
 {
     global $shortcode_tags;
     //in case we got none/more than one postcontent elements make sure that replacement doesnt get executed/onle gets executed once
     if (strpos($content, 'av_postcontent') === false) {
         return $content;
     }
     //save the "real" shortcode array
     $old_sc = $shortcode_tags;
     //execute only this single shortcode and return the result
     $shortcode_tags = array($this->config['shortcode'] => array($this, 'shortcode_handler'));
     $content = do_shortcode($content);
     //re create the old shortcode pattern
     $shortcode_tags = $old_sc;
     //$content = preg_replace("!\[av_postcontent.*?\]!","",$content);
     //now we need to re calculate the shortcode tree so that all elements that are pulled from different posts also get the correct location
     $pattern = str_replace('av_postcontent', 'av_psprocessed', ShortcodeHelper::get_fake_pattern());
     preg_match_all("/" . $pattern . "/s", $content, $matches);
     ShortcodeHelper::$tree = ShortcodeHelper::build_shortcode_tree($matches);
     return $content;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element 
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string 
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     $atts = shortcode_atts(array('size' => 'featured', 'animation' => 'slide', 'ids' => '', 'autoplay' => 'false', 'interval' => 5, 'handle' => $shortcodename, 'stretch' => '', 'bg_slider' => 'true', 'slide_height' => "100", 'content' => ShortcodeHelper::shortcode2array($content)), $atts);
     extract($atts);
     $output = "";
     $class = "";
     $skipSecond = false;
     avia_sc_slider_full::$slide_count++;
     $params['class'] = "avia-fullscreen-slider main_color " . $meta['el_class'] . $class;
     $params['open_structure'] = false;
     if ($meta['index'] == 0) {
         $params['close'] = false;
     }
     if ($meta['index'] != 0) {
         $params['class'] .= " slider-not-first";
     }
     if ($meta['index'] == 0 && get_post_meta(get_the_ID(), 'header', true) != "no") {
         $params['class'] .= " slider-not-first";
     }
     $params['id'] = "fullscreen_slider_" . avia_sc_slider_fullscreen::$slide_count;
     $output .= avia_new_section($params);
     $slider = new avia_slideshow($atts);
     $slider->set_extra_class($stretch);
     $output .= $slider->html();
     $output .= "</div>";
     //close section
     //if the next tag is a section dont create a new section from this shortcode
     if (!empty($meta['siblings']['next']['tag']) && in_array($meta['siblings']['next']['tag'], array('av_layerslider', 'av_section', 'av_slideshow_full', 'av_fullscreen'))) {
         $skipSecond = true;
     }
     //if there is no next element dont create a new section.
     if (empty($meta['siblings']['next']['tag'])) {
         $skipSecond = true;
     }
     if (empty($skipSecond)) {
         $output .= avia_new_section(array('close' => false, 'id' => "after_full_slider_" . avia_sc_slider_fullscreen::$slide_count));
     }
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     extract(shortcode_atts(array('font_color' => "", 'color' => '', 'size' => ''), $atts, $this->config['shortcode']));
     $custom_class = !empty($meta['custom_class']) ? $meta['custom_class'] : "";
     $output = '';
     $markup = avia_markup_helper(array('context' => 'entry', 'echo' => false, 'custom_markup' => $meta['custom_markup']));
     $markup_text = avia_markup_helper(array('context' => 'entry_content', 'echo' => false, 'custom_markup' => $meta['custom_markup']));
     $extra_styling = "";
     if ($size) {
         $extra_styling .= "font-size:{$size}px; ";
     }
     if ($font_color == "custom") {
         $custom_class .= " av_inherit_color";
         $extra_styling .= !empty($color) ? "color:{$color}; " : "";
     }
     if ($extra_styling) {
         $extra_styling = " style='{$extra_styling}'";
     }
     $output .= '<section class="av_textblock_section" ' . $markup . '>';
     $output .= "<div class='avia_textblock {$custom_class}' {$extra_styling} {$markup_text}>" . ShortcodeHelper::avia_apply_autop(ShortcodeHelper::avia_remove_autop($content)) . "</div>";
     $output .= '</section>';
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     avia_sc_grid_row::$count++;
     $atts = shortcode_atts(array('color' => 'main_color', 'border' => '', 'min_height' => '0', 'mobile' => 'av-flex-cells', 'id' => ''), $atts, $this->config['shortcode']);
     extract($atts);
     $output = "";
     $params['class'] = "av-layout-grid-container {$color} {$mobile} {$border}" . $meta['el_class'];
     $params['open_structure'] = false;
     $params['id'] = !empty($id) ? $id : "av-layout-grid-" . avia_sc_grid_row::$count;
     $params['custom_markup'] = $meta['custom_markup'];
     //we dont need a closing structure if the element is the first one or if a previous fullwidth element was displayed before
     if (isset($meta['index']) && $meta['index'] == 0) {
         $params['close'] = false;
     }
     if (!empty($meta['siblings']['prev']['tag']) && in_array($meta['siblings']['prev']['tag'], AviaBuilder::$full_el_no_section)) {
         $params['close'] = false;
     }
     if (isset($meta['index']) && $meta['index'] != 0) {
         $params['class'] .= " submenu-not-first";
     }
     avia_sc_cell::$attr = $atts;
     $output .= avia_new_section($params);
     $output .= ShortcodeHelper::avia_remove_autop($content, true);
     $output .= avia_section_after_element_content($meta, 'after_submenu', false);
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     $atts = shortcode_atts(array('name' => '', 'src' => '', 'description' => '', 'job' => '', 'custom_markup' => '', 'font_color' => '', 'custom_title' => '', 'custom_content' => ''), $atts, $this->config['shortcode']);
     extract($atts);
     $title_styling = "";
     $content_styling = "";
     $content_class = "";
     $title_class = "";
     if ($font_color == "custom") {
         $title_styling .= !empty($custom_title) ? "color:{$custom_title}; " : "";
         $content_styling .= !empty($custom_content) ? "color:{$custom_content}; " : "";
         if ($title_styling) {
             $title_styling = " style='{$title_styling}'";
             $title_class = "av_opacity_variation";
         }
         if ($content_styling) {
             $content_styling = " style='{$content_styling}'";
             $content_class = "av_inherit_color";
         }
     }
     $socials = ShortcodeHelper::shortcode2array($content);
     $output = "";
     $markup = avia_markup_helper(array('context' => 'person', 'echo' => false, 'custom_markup' => $custom_markup));
     $output .= "<section class='avia-team-member " . $meta['el_class'] . "' {$markup}>";
     if ($src) {
         $output .= "<div class='team-img-container'>";
         $markup = avia_markup_helper(array('context' => 'single_image', 'echo' => false, 'custom_markup' => $custom_markup));
         $output .= "<img class='avia_image avia_image_team' src='" . $src . "' alt='" . esc_attr($name) . "' {$markup} />";
         if (!empty($socials)) {
             $output .= "<div class='team-social'>";
             $output .= "<div class='team-social-inner'>";
             foreach ($socials as $social) {
                 //set defaults
                 $social['attr'] = shortcode_atts(array('link' => '', 'link_target' => '', 'icon' => '', 'font' => '', 'title' => ''), $social['attr'], 'av_social');
                 //build link for each social item
                 $tooltip = $social['attr']['title'] ? 'data-avia-tooltip="' . $social['attr']['title'] . '"' : "";
                 $target = $social['attr']['link_target'] ? "target='_blank'" : "";
                 //apply special class in case its a link to a known social media service
                 $social_class = $this->get_social_class($social['attr']['link']);
                 if (strstr($social['attr']['link'], '@')) {
                     $markup = avia_markup_helper(array('context' => 'email', 'echo' => false, 'custom_markup' => $custom_markup));
                 } else {
                     $markup = avia_markup_helper(array('context' => 'url', 'echo' => false, 'custom_markup' => $custom_markup));
                 }
                 $display_char = av_icon($social['attr']['icon'], $social['attr']['font']);
                 $output .= "<span class='hidden av_member_url_markup {$social_class}' {$markup}>" . $social['attr']['link'] . "</span>";
                 $output .= "<a rel='v:url' {$tooltip} {$target} class='{$social_class} avia-team-icon ' href='" . $social['attr']['link'] . "' {$display_char}>";
                 $output .= "</a>";
             }
             $output .= "</div>";
             $output .= "</div>";
         }
         $output .= "</div>";
     }
     if ($name) {
         $markup = avia_markup_helper(array('context' => 'name', 'echo' => false, 'custom_markup' => $custom_markup));
         $output .= "<h3 class='team-member-name' {$title_styling} {$markup}>{$name}</h3>";
     }
     if ($job) {
         $markup = avia_markup_helper(array('context' => 'job', 'echo' => false, 'custom_markup' => $custom_markup));
         $output .= "<div class='team-member-job-title {$title_class}' {$title_styling} {$markup}>{$job}</div>";
     }
     if ($description) {
         $markup = avia_markup_helper(array('context' => 'description', 'echo' => false, 'custom_markup' => $custom_markup));
         $output .= "<div class='team-member-description {$content_class}' {$markup} {$content_styling}>" . ShortcodeHelper::avia_apply_autop(ShortcodeHelper::avia_remove_autop($description)) . "</div>";
     }
     $markup = avia_markup_helper(array('context' => 'affiliation', 'echo' => false, 'custom_markup' => $custom_markup));
     $output .= "<span class='hidden team-member-affiliation' {$markup}>" . get_bloginfo('name') . "</span>";
     $output .= "</section>";
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element 
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string 
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     $atts = shortcode_atts(array('title' => '', 'color' => 'green', 'border' => '', 'custom_bg' => '#444444', 'custom_font' => '#ffffff', 'size' => 'large', 'icon_select' => 'yes', 'icon' => '', 'font' => ''), $atts, $this->config['shortcode']);
     $display_char = av_icon($atts['icon'], $atts['font']);
     $output = "";
     $style = "";
     if ($atts['color'] == "custom") {
         $style .= "style='background-color:" . $atts['custom_bg'] . "; color:" . $atts['custom_font'] . "; '";
     }
     $output .= "<div {$style} class='avia_message_box " . $this->class_by_arguments('color, size, icon_select, border', $atts, true) . $meta['el_class'] . "'>";
     if ($atts['title']) {
         $output .= "<span class='avia_message_box_title' >" . $atts['title'] . "</span>";
     }
     $output .= "<div class='avia_message_box_content' >";
     if ($atts['icon_select'] == 'yes') {
         $output .= "<span class='avia_message_box_icon' {$display_char}></span>";
     }
     $output .= ShortcodeHelper::avia_apply_autop(ShortcodeHelper::avia_remove_autop($content)) . "</div>";
     $output .= "</div>";
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element 
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string 
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     $output = "";
     $params['class'] = "main_color " . $meta['el_class'];
     $params['open_structure'] = false;
     $params['id'] = !empty($atts['id']) ? AviaHelper::save_string($atts['id'], '-') : "";
     $params['custom_markup'] = $meta['custom_markup'];
     if ($atts['gap'] == 'no' && $atts['sort'] == "no" || $meta['index'] == 0) {
         $params['class'] .= " avia-no-border-styling";
     }
     //we dont need a closing structure if the element is the first one or if a previous fullwidth element was displayed before
     if ($meta['index'] == 0) {
         $params['close'] = false;
     }
     if (!empty($meta['siblings']['prev']['tag']) && in_array($meta['siblings']['prev']['tag'], AviaBuilder::$full_el_no_section)) {
         $params['close'] = false;
     }
     if ($meta['index'] != 0) {
         $params['class'] .= " masonry-not-first";
     }
     if ($meta['index'] == 0 && get_post_meta(get_the_ID(), 'header', true) != "no") {
         $params['class'] .= " masonry-not-first";
     }
     $masonry = new avia_masonry($atts);
     $masonry->extract_terms();
     $masonry->query_entries();
     $masonry_html = $masonry->html();
     if (!ShortcodeHelper::is_top_level()) {
         return $masonry_html;
     }
     $output .= avia_new_section($params);
     $output .= $masonry_html;
     $output .= avia_section_after_element_content($meta, 'after_masonry');
     return $output;
 }

 function av_rotator_item($atts, $content = "", $shortcodename = "")
 {
     $atts = shortcode_atts(array('title' => '', 'link' => '', 'linktarget' => '', 'custom_title' => ''), $atts, 'av_rotator_item');
     extract($atts);
     $this->count++;
     $style = AviaHelper::style_string($atts, 'custom_title', 'color');
     $style = AviaHelper::style_string($style);
     $link = AviaHelper::get_url($link);
     $blank = strpos($linktarget, '_blank') !== false || $linktarget == 'yes' ? ' target="_blank" ' : "";
     $blank .= strpos($linktarget, 'nofollow') !== false ? ' rel="nofollow" ' : "";
     $tags = !empty($link) ? array("a href='{$link}' {$blank} ", 'a') : array('span', 'span');
     $output = "";
     $output .= "<{$tags[0]} {$style} class='av-rotator-text-single av-rotator-text-single-{$this->count}'>";
     $output .= ShortcodeHelper::avia_remove_autop($title, true);
     $output .= "</{$tags[1]}>";
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element 
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string 
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     extract(shortcode_atts(array('title' => 'Title', 'icon' => '1', 'position' => 'left', 'link' => '', 'linktarget' => 'no'), $atts));
     $icon_el = $this->elements[0];
     $chars = $icon_el['chars'];
     $font = $icon_el['font'];
     if (!is_array($chars)) {
         include $icon_el['chars'];
     }
     $display_char = isset($chars[$icon - 1]) ? $chars[$icon - 1] : $chars[0];
     if ($position == 'top') {
         $position .= " main_color";
     }
     $linktarget = $linktarget == 'no' ? '' : 'target="_blank"';
     $link = aviaHelper::get_url($link);
     if (!empty($link)) {
         $title = "<a href='{$link}' title='" . esc_attr($title) . "' {$linktarget}>{$title}</a>";
     }
     // add blockquotes to the content
     $output = '<div class="iconbox iconbox_' . $position . ' ' . $meta['el_class'] . '">';
     $output .= '<div class="iconbox_content">';
     $output .= '<div class="iconbox_icon heading-color avia-font-' . $font . '">' . $display_char . '</div>';
     $output .= '<h3 class="iconbox_content_title">' . $title . "</h3>";
     $output .= ShortcodeHelper::avia_apply_autop(ShortcodeHelper::avia_remove_autop($content));
     $output .= '</div></div>';
     return $output;
 }

 /**
  * Frontend Shortcode Handler
  *
  * @param array $atts array of attributes
  * @param string $content text within enclosing form of shortcode element
  * @param string $shortcodename the shortcode found, when == callback name
  * @return string $output returns the modified html string
  */
 function shortcode_handler($atts, $content = "", $shortcodename = "", $meta = "")
 {
     avia_sc_section::$section_count++;
     $atts = shortcode_atts(array('src' => '', 'position' => 'top left', 'repeat' => 'no-repeat', 'attach' => 'scroll', 'color' => 'main_color', 'custom_bg' => '', 'padding' => 'default', 'shadow' => 'shadow', 'id' => '', 'min_height' => '', 'video' => '', 'video_ratio' => '16:9', 'video_mobile_disabled' => '', 'custom_markup' => '', 'attachment' => '', 'attachment_size' => ''), $atts, $this->config['shortcode']);
     extract($atts);
     $output = "";
     $class = "avia-section " . $color . " avia-section-" . $padding . " avia-" . $shadow . " avia-bg-style-" . $attach;
     $background = "";
     $params['id'] = !empty($id) ? AviaHelper::save_string($id, '-') : "av_section_" . avia_sc_section::$section_count;
     $params['custom_markup'] = $meta['custom_markup'];
     if (!empty($attachment) && !empty($attachment_size)) {
         $attachment_entry = get_post($attachment);
         if (!empty($attachment_entry)) {
             if (!empty($attachment_size)) {
                 $src = wp_get_attachment_image_src($attachment_entry->ID, $attachment_size);
                 $src = !empty($src[0]) ? $src[0] : "";
             }
         }
     } else {
         $attachment = false;
     }
     if ($src != "") {
         if ($repeat == 'stretch') {
             $background .= "background-repeat: no-repeat; ";
             $class .= " avia-full-stretch";
         } else {
             $background .= "background-repeat: {$repeat}; ";
         }
         $background .= "background-image: url({$src}); ";
         $background .= $attach == 'parallax' ? "background-attachment: scroll; " : "background-attachment: {$attach}; ";
         $background .= "background-position: {$position}; ";
         if ($attach == 'parallax') {
             $attachment_class = "";
             if ($repeat == 'stretch' || $repeat == 'no-repeat') {
                 $attachment_class .= " avia-full-stretch";
             }
             $class .= " av-parallax-section";
             $speed = apply_filters('avf_parallax_speed', "0.3", $params['id']);
             $params['attach'] = "<div class='av-parallax {$attachment_class}' data-avia-parallax-ratio='{$speed}' style = '{$background}' ></div>";
             $background = "";
         }
         $params['data'] = "data-section-bg-repeat='{$repeat}'";
     }
     if ($custom_bg != "") {
         $background .= "background-color: {$custom_bg}; ";
     }
     if ($background) {
         $background = "style = '{$background}'";
     }
     $params['class'] = $class . " " . $meta['el_class'];
     $params['bg'] = $background;
     $params['min_height'] = $min_height;
     $params['video'] = $video;
     $params['video_ratio'] = $video_ratio;
     $params['video_mobile_disabled'] = $video_mobile_disabled;
     if (isset($meta['index'])) {
         if ($meta['index'] == 0) {
             $params['main_container'] = true;
         }
         if ($meta['index'] == 0 || isset($meta['siblings']['prev']['tag']) && in_array($meta['siblings']['prev']['tag'], AviaBuilder::$full_el_no_section)) {
             $params['close'] = false;
         }
     }
     global $avia_config;
     $avia_config['layout_container'] = "section";
     $output .= avia_new_section($params);
     $output .= ShortcodeHelper::avia_remove_autop($content, true);
     //if the next tag is a section dont create a new section from this shortcode
     if (!empty($meta['siblings']['next']['tag']) && in_array($meta['siblings']['next']['tag'], AviaBuilder::$full_el)) {
         $skipSecond = true;
     }
     //if there is no next element dont create a new section. if we got a sidebar always create a next section at the bottom
     if (empty($meta['siblings']['next']['tag']) && !avia_has_sidebar()) {
         $skipSecond = true;
     }
     if (empty($skipSecond)) {
         $new_params['id'] = "after_section_" . avia_sc_section::$section_count;
         $output .= avia_new_section($new_params);
     }
     unset($avia_config['layout_container']);
     return $output;
 }