Soliloquy Lite Shortcode

function shortcode( $atts ) {

		global $post;

		// If no attributes have been passed, the slider should be pulled from the current post.
		$slider_id = false;
		if ( empty( $atts ) ) {
			$slider_id = $post->ID;
			$data      = is_preview() ? $this->base->_get_slider( $slider_id ) : $this->base->get_slider( $slider_id );
		} elseif ( isset( $atts['id'] ) ) {
			$slider_id = (int) $atts['id'];
			$data      = is_preview() ? $this->base->_get_slider( $slider_id ) : $this->base->get_slider( $slider_id );
		} elseif ( isset( $atts['slug'] ) ) {
			$slider_id = $atts['slug'];
			$data      = is_preview() ? $this->base->_get_slider_by_slug( $slider_id ) : $this->base->get_slider_by_slug( $slider_id );
		} else {
			// A custom attribute must have been passed. Allow it to be filtered to grab data from a custom source.
			$data = apply_filters( 'soliloquy_custom_slider_data', false, $atts, $post );
		}

		// If there is no data and the attribute used is an ID, try slug as well.
		if ( ! $data && isset( $atts['id'] ) ) {
			$slider_id = $atts['id'];
			$data      = is_preview() ? $this->base->_get_slider_by_slug( $slider_id ) : $this->base->get_slider_by_slug( $slider_id );
		}

		// Allow the data to be filtered before it is stored and used to create the slider output.
		$this->slider_data = apply_filters( 'soliloquy_pre_data', $data, $slider_id );

		// If there is no data to output or the slider is inactive, do nothing.
		if ( ! $this->slider_data || empty( $this->slider_data['slider'] ) || isset( $this->slider_data['status'] ) && 'inactive' === $this->slider_data['status'] && ! is_preview() ) {
			return false;
		}

		// If the data is to be randomized, do it now.
		if ( $this->get_config( 'random', $this->slider_data ) ) {
			$this->slider_data = $this->shuffle( $this->slider_data );
		}

		// Prepare variables.
		$this->data[ $this->slider_data['id'] ] = $this->slider_data;
		$slider                                 = '';
		$i                                      = 1;

		// If this is a feed view, customize the output and return early.
		if ( is_feed() ) {
			return $this->do_feed_output( $this->slider_data );
		}

		// Load scripts and styles.
		wp_enqueue_style( $this->base->plugin_slug . '-style' );
		wp_enqueue_script( $this->base->plugin_slug . '-script' );

		// Load custom slider themes if necessary.
		if ( 'base' !== $this->get_config( 'slider_theme', $this->slider_data ) ) {
			$this->load_slider_theme( $this->get_config( 'slider_theme', $this->slider_data ) );
		}

		// Load slider init code in the footer.
		add_action( 'wp_footer', array( $this, 'slider_init' ), 1000 );

		// Run a hook before the slider output begins but after scripts and inits have been set.
		do_action( 'soliloquy_before_output', $this->slider_data );

		// Apply a filter before starting the slider HTML.
		$slider = apply_filters( 'soliloquy_output_start', $slider, $this->slider_data );

		// Build out the slider HTML.
		$slider        .= '<div aria-live="' . $this->get_config( 'aria_live', $this->slider_data ) . '" id="soliloquy-container-' . sanitize_html_class( $this->slider_data['id'] ) . '" class="' . $this->get_slider_classes( $this->slider_data ) . '" style="max-width:' . $this->get_config( 'slider_width', $data ) . 'px;max-height:' . $this->get_config( 'slider_height', $this->slider_data ) . 'px;' . apply_filters( 'soliloquy_output_container_style', '', $this->slider_data ) . '"' . apply_filters( 'soliloquy_output_container_attr', '', $this->slider_data ) . '>';
			$slider    .= '<ul id="soliloquy-' . sanitize_html_class( $this->slider_data['id'] ) . '" class="soliloquy-slider soliloquy-slides soliloquy-wrap soliloquy-clear">';
				$slider = apply_filters( 'soliloquy_output_before_container', $slider, $this->slider_data );

		foreach ( (array) $this->slider_data['slider'] as $id => $item ) {
			// Skip over images that are pending (ignore if in Preview mode).
			if ( isset( $item['status'] ) && 'pending' === $item['status'] && ! is_preview() ) {
				continue;
			}

			// Allow filtering of individual items.
			$item = apply_filters( 'soliloquy_output_item_data', $item, $id, $this->slider_data, $i );

			$slider      = apply_filters( 'soliloquy_output_before_item', $slider, $id, $item, $this->slider_data, $i );
			$output      = '<li aria-hidden="true" class="' . $this->get_slider_item_classes( $item, $i, $this->slider_data ) . '"' . apply_filters( 'soliloquy_output_item_attr', '', $id, $item, $this->slider_data, $i ) . ' draggable="false" style="list-style:none">';
				$output .= $this->get_slide( $id, $item, $this->slider_data, $i );
			$output     .= '</li>';
			$output      = apply_filters( 'soliloquy_output_single_item', $output, $id, $item, $this->slider_data, $i );
			$slider     .= $output;
			$slider      = apply_filters( 'soliloquy_output_after_item', $slider, $id, $item, $this->slider_data, $i );

			// Increment the iterator.
			$i++;
		}

				$slider = apply_filters( 'soliloquy_output_after_container', $slider, $this->slider_data );
			$slider    .= '</ul>';
			$slider     = apply_filters( 'soliloquy_output_end', $slider, $this->slider_data );
		$slider        .= '</div>';

		// Increment the counter.
		$this->counter++;

		// Add no JS fallback support.
		$no_js   = apply_filters( 'soliloquy_output_no_js', '<noscript><style type="text/css">#soliloquy-container-' . sanitize_html_class( $this->slider_data['id'] ) . '{opacity:1}</style></noscript>', $this->slider_data );
		$slider .= $no_js;

		// Return the slider HTML.
		return apply_filters( 'soliloquy_output', $slider, $this->slider_data );

	}