class-bu-slide.php

<?php
require_once plugin_dir_path(__FILE__) . 'bu-slideshow.php';
require_once plugin_dir_path(__FILE__) . 'class-bu-slideshow.php';

if (!defined('BU_SSHOW_LOCAL')) {
	define('BU_SSHOW_LOCAL', 'BU_Slideshow');
}

class BU_Slide {

	public $image_id = 0;
	public $image_size = 'full';
	public $caption = array(
		'title'    => '',
		'link'     => '',
		'text'     => '',
		'position' => 'caption-bottom-right'
	);
	public $order = 0;
	public $template_id = '';
	public $template_options = array();
	public $view;
	public $additional_styles = '';
	public $custom_fields = array();

	static public $custom_field_types = array('text');
	static public $views = array('admin', 'public');

	public function __construct($args) {
		// $this->caption['title'] = __('Untitled Slide', 'bu-slideshow');

		foreach ($this as $prop => $val) {
			if (isset($args[$prop])) {
				$this->$prop = $args[$prop];
			}
		}
	}

	/**
	 * Set the order of this slide in a slideshow.
	 * @param int $order
	 */
	public function set_order($order) {
		$this->order = intval($order);
	}

	/**
	 * Set the template of this slide
	 * @param string $template_id
	 */
	public function set_template($template_id) {
		$this->template_id = $template_id;
	}

	/**
	 * Set the view type.
	 * @param string $view
	 */
	public function set_view($view) {
		if (in_array($view, self::$views)) {
			$this->view = $view;
		}
	}

	/**
	 * Returns markup for one slide. If view is public, this is the slide markup;
	 * if view is admin, this is the markup to edit slide.
	 * @param array $args
	 * @return string
	 */
	public function get($args = array()){

		if( ! empty( $this->template_id ) ){
			$templates = apply_filters('bu_slideshow_slide_templates', BU_Slideshow::$slide_templates);
			$this->template_options = $templates[ $this->template_id ];
		} else {
			$this->template_options['custom_fields'] = array();
		}

		switch ($this->view) {

			case 'admin':

				$img_thumb = '';
				$caption_positions = apply_filters('bu_slideshow_caption_positions', BU_Slideshow::$caption_positions);
				$allowed_fields = $this->template_options['custom_fields'];
				$custom_fields = $this->custom_fields;
				$this->caption = stripslashes_deep($this->caption);

				if ($this->image_id) {
					$img_thumb = wp_get_attachment_image($this->image_id, BU_Slideshow::$custom_thumb_size);
					if( !empty( $img_thumb ) ){
						$img_meta = wp_get_attachment_metadata($this->image_id);

						if( array_key_exists( 'bu-slideshow-thumb', $img_meta['sizes'] ) ){
							unset($img_meta['sizes'][BU_Slideshow::$custom_thumb_size]);
						}

						$img_meta['sizes']['full'] = array("width"=>$img_meta['width'],"height"=>$img_meta['height']);
						$edit_url = admin_url( 'post.php?post=' . $this->image_id . '&action=edit');
					}
				}

				ob_start();
				include BU_SLIDESHOW_BASEDIR . 'interface/single-slide-admin.php';
				$html = ob_get_contents();
				ob_end_clean();

				return apply_filters( 'bu_slideshow_slide_admin', $html, $this );

				break;

			case 'public':

				$slide_id = $args['id_prefix'] . '_' . $this->order;
				$additional_styles = !empty($this->additional_styles) ? $this->additional_styles : '';
				$caption_class = !empty($this->caption['position']) ? "slide-".$this->caption['position'] : '';
				$haslink = false;

				$this->caption = stripslashes_deep($this->caption);
				$this->image_html = $this->get_image_html();
				$this->caption['html'] = $this->get_caption_html();

				$html = sprintf('<li id="%s" class="slide %s">', $slide_id, $additional_styles);
				$html .= sprintf('<div class="bu-slide-container %s">', $caption_class);

				$slide_inner = $this->image_html . $this->caption['html'];

				$html .= apply_filters( 'bu_slideshow_slide_html', $slide_inner, $this );

				$html .= '</div></li>';

				return $html;

				break;

			default:
				break;
		}
	}

	public function get_caption_html() {
		$html = '';
		// If no title or text, bail
		if ( ( !isset($this->caption['title']) || empty($this->caption['title']) ) &&
				( !isset($this->caption['text']) || empty($this->caption['text']) ) ) {
			return $html;
		}

		$html .= '<div class="bu-slide-caption '.$this->caption['position'].'">';

		if (isset($this->caption['title']) && !empty($this->caption['title'])) {
			$html .= '<p class="bu-slide-caption-title">';

			$title_str = esc_html(wp_strip_all_tags($this->caption['title']));

			if (isset($this->caption['link']) && $this->caption['link']) {
				$html .= sprintf('<a href="%s">%s</a></p>', esc_url($this->caption['link']), $title_str);
			} else {
				$html .= $title_str . '</p>';
			}
		}

		if (isset($this->caption['text']) && !empty($this->caption['text'])) {
			$html .= sprintf('<p class="bu-slide-caption-text">%s</p>', $this->caption['text']);
		}
		$html .= '</div>';

		return $html;
	}

	public function get_image_html() {
		$html = '';

		if ($this->image_id) {
			$img_arr = wp_get_attachment_image_src($this->image_id, $this->image_size);

			if (is_array($img_arr) && !empty($img_arr)) {
				$img_alt = BU_Slideshow::get_image_alt($this->image_id);
				$img_str = sprintf('<img src="%s" alt="%s" />', esc_url($img_arr[0]), esc_attr($img_alt));

				if (isset($this->caption['link']) && $this->caption['link']) {
					$html .= sprintf('<a href="%s">%s</a>', esc_url($this->caption['link']), $img_str);
				} else {
					$html .= $img_str;
				}
			}
		}

		return $html;
	}

}