<?php
/**
 * Advanced Layerslider
 * 
 * Display a Layerslider Slideshow
 * @modified 4.2.1, 4.2.7
 * @modified_by Günter
 */
if ( ! defined( 'ABSPATH' ) ) {  exit;  }    // Exit if accessed directly

if( ! Avia_Config_LayerSlider()->is_active() )
{
	return;
}

if ( ! class_exists( 'avia_sc_layerslider' ) ) 
{
	class avia_sc_layerslider extends aviaShortcodeTemplate
	{		
		static $slide_count = 0;

		/**
		 * Create the config array for the shortcode button
		 */
		public function shortcode_insert_button()
		{
			$this->config['self_closing']			= 'yes';
			$this->config['is_fullwidth']			= 'yes';
			$this->config['forced_load_objects']	= array( 'layerslider' );		//	fallback only to make sure we load in case user overwrites this class and direct checks for shortcode might fail

			$this->config['name']		= __( 'Advanced Layerslider', 'avia_framework' );
			$this->config['tab']		= __( 'Media Elements', 'avia_framework' );
			$this->config['icon']		= AviaBuilder::$path['imagesURL'] . 'sc-slideshow-layer.png';
			$this->config['order']		= 10;
			$this->config['target']		= 'avia-target-insert';
			$this->config['shortcode'] 	= 'av_layerslider';
			$this->config['tooltip'] 	= __( 'Display a Layerslider Slideshow', 'avia_framework' );
			$this->config['tinyMCE'] 	= array( 'disable' => 'true' );
			$this->config['drag-level']	= 1;
			$this->config['disabling_allowed'] = true;
		}

		function extra_assets()
		{
			//load css
			wp_enqueue_style( 'avia-module-slideshow-ls', AviaBuilder::$path['pluginUrlRoot'] . 'avia-shortcodes/slideshow_layerslider/slideshow_layerslider.css', array('avia-layout'), false );

				//load js
			wp_enqueue_script( 'avia-module-slideshow-ls', AviaBuilder::$path['pluginUrlRoot'] . 'avia-shortcodes/slideshow_layerslider/slideshow_layerslider.js', array('avia-shortcodes'), false, true );

		}
			
		/**
		 * Editor Element - this function defines the visual appearance of an element on the AviaBuilder Canvas
		 * Most common usage is to define some markup in the $params['innerHtml'] which is then inserted into the drag and drop container
		 * Less often used: $params['data'] to add data attributes, $params['class'] to modify the className
		 *
		 *
		 * @param array $params this array holds the default values for $content and $args. 
		 * @return $params the return array usually holds an innerHtml key that holds item specific markup.
		 */
		public function editor_element( $params )
		{	
			//fetch all registered slides and save them to the slides array
			$slides = Avia_Config_LayerSlider()->find_layersliders( true );

			if( empty( $params['args']['id'] ) && is_array( $slides ) ) 
			{
				$params['args']['id'] = reset( $slides );				
			}

			if( empty( $params['args']['id'] ) ) 
			{
				$params['args']['id'] = '';			
			}

			$element = array(
				'subtype'	=> $slides, 
				'type'		=>'select', 
				'std'		=> $params['args']['id'], 
				'class'		=> 'avia-recalc-shortcode',
				'data'		=> array( 'attr'=>'id' )
			);

			$inner = "<img src='{$this->config['icon']}' title='{$this->config['name']}' alt='' />";


			if( empty( $slides ) )
			{
				$inner .= "<div><a target='_blank' href='" . admin_url( 'admin.php?page=layerslider' ) . "'>" . __( 'No Layer Slider Found. Click here to create one', 'avia_framework' ) . '</a></div>';
			}
			else
			{
				$inner .= "<div class='avia-element-label'>{$this->config['name']}</div>";
				$inner .= AviaHtmlHelper::render_element( $element );
				$inner .= "<a target='_blank' href='" . admin_url( 'admin.php?page=layerslider' ) . "'>" . __( 'Edit Layer Slider here', 'avia_framework' ) . '</a>';
			}

			$params['class'] = 'av_sidebar';
			$params['innerHtml'] = $inner;

			return $params;
		}

		/**
		 * 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
		 * @param array $meta
		 * @return string $output returns the modified html string 
		 */
		public function shortcode_handler( $atts, $content = '', $shortcodename = '', $meta = array() )
		{
			$atts = shortcode_atts( array(
							'id'	=>	0
						), $atts, $this->config['shortcode'] );

			$output  = '';

			avia_sc_layerslider::$slide_count++;

			$skipSecond = false;
			$params = array();

			/**
			 * Get selected slider or last slider
			 */
			$slider = Avia_Config_LayerSlider()->get_default_slider( $atts['id'] );

			if( ! empty( $slider ) )
			{		
				$atts['id'] = $slider['id'];
				$slides = json_decode( $slider['data'], true );	
				$height = $slides['properties']['height'];	
				$width  = $slides['properties']['width'];	
				$responsive = ! empty( $slides['properties']['responsive'] ) ? $slides['properties']['responsive'] : '';
				$responsiveunder = ! empty( $slides['properties']['responsiveunder'] ) ? $slides['properties']['responsiveunder'] : '';

				if( ! empty( $slides['properties']['type'] ) && ( 'responsive' == $slides['properties']['type'] ) )
				{
					$params['style'] = " style='height: " . ( $height + 1 ) . "px; max-width: {$width}px; margin: 0 auto;' ";
				}
				else
				{
					$params['style'] = " style='height: " . ( $height + 1 ) . "px;' ";
				}
			}
			else
			{
				/**
				 * Force an error message in frontend for admins
				 */
				$atts['id'] = 0;
			}
				
				
			$params['class'] = "avia-layerslider main_color avia-shadow {$meta['el_class']}";
			$params['open_structure'] = false;

			//we dont need a closing structure if the element is the first one or if a previous fullwidth element was displayed before
			//				if(empty($meta['index'])) $params['close'] = false;
			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(!empty($meta['index'])) $params['class'] .= ' slider-not-first';
			if( $meta['index'] > 0 ) 
			{
				$params['class'] .= ' slider-not-first';
			}

			$params['id'] = 'layer_slider_' . avia_sc_layerslider::$slide_count;


			$output .=  avia_new_section( $params );

			if( class_exists( 'LS_Shortcode' ) && method_exists( 'LS_Shortcode', 'handleShortcode' ) ) //fix for search results page - only works with latest LayerSlider versions
			{
				$output .= LS_Shortcode::handleShortcode( $atts );
			}
			else if( function_exists( 'layerslider_init' ) ) //fix for search results page - only works with older LayerSlider versions
			{
				$output .= layerslider_init( $atts );
			}

			$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( $meta['siblings']['next']['tag'], AviaBuilder::$full_el ) )
			{
				$skipSecond = true;
			}

			//if there is no next element dont create a new section.
			if( empty( $meta['siblings']['next']['tag'] ) )
			{
				$skipSecond = true;
			}

			if( empty( $skipSecond ) ) 
			{
				$output .= avia_new_section(array( 'close' => false, 'id' => 'after_layer_slider_' . avia_sc_layerslider::$slide_count ) );
			}

			return $output;
		}
			
	}
}

