<?php
/**
 * Plugin Name: WP Lightbox 2
 * Plugin URI:  https://wpdevart.com/wordpress-lightbox-plugin
 * Description: WP Lightbox 2 adds stunning lightbox effects to images and galleries on your WordPress site.
 * Version:     3.0.7
 * Author:      Syed Balkhi
 * Author URI:  https://syedbalkhi.com
 * License:     GNU General Public License, v2 (or newer)
 * License URI: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 */
/*  Copyright 2015 Syed Balkhi

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation using version 2 of the License.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

add_action( 'plugins_loaded', 'jqlb_init' );

function jqlb_init() {

	if ( ! defined( 'JQLB_SCRIPT' ) ) {
		define('JQLB_SCRIPT', 'js/dist/wp-lightbox-2.min.js');
	}

	load_plugin_textdomain( 'jqlb', false, dirname( plugin_basename( __FILE__ ) ) . '/I18n/' );

	add_action('admin_init', 'jqlb_register_settings');
	add_action('wp_enqueue_scripts', 'jqlb_css');
	add_action('wp_enqueue_scripts', 'jqlb_js');

	add_filter('the_content', 'jqlb_autoexpand_rel_wlightbox', 99);

	if ( 1 === (int) get_option('jqlb_comments') ) {
		remove_filter('pre_comment_content', 'wp_rel_nofollow');
		add_filter('comment_text', 'jqlb_lightbox_comment', 99);
	}
}

function jqlb_register_settings() {
	register_setting( 'jqlb-settings-group', 'jqlb_automate',         'jqlb_bool_intval' );
	register_setting( 'jqlb-settings-group', 'jqlb_comments',         'jqlb_bool_intval' );
	register_setting( 'jqlb-settings-group', 'jqlb_resize_on_demand', 'jqlb_bool_intval' );
	register_setting( 'jqlb-settings-group', 'jqlb_show_download',    'jqlb_bool_intval' );
	register_setting( 'jqlb-settings-group', 'jqlb_navbarOnTop',      'jqlb_bool_intval' );
	register_setting( 'jqlb-settings-group', 'jqlb_resize_speed',     'jqlb_pos_intval' );
	register_setting( 'jqlb-settings-group', 'jqlb_margin_size',      'floatval' );
	register_setting( 'jqlb-settings-group', 'jqlb_help_text',        'jplb_help_kses' );

	add_option( 'jqlb_automate', 1 );
	add_option( 'jqlb_comments', 1 );
	add_option( 'jqlb_resize_on_demand', 0 );
	add_option( 'jqlb_show_download', 0 );
	add_option( 'jqlb_margin_size', 0 );
	add_option( 'jqlb_navbarOnTop', 0 );
	add_option( 'jqlb_resize_speed', 400 );
	add_option( 'jqlb_help_text', '' );
}
function jqlb_register_menu_item() {
	add_options_page('WP Lightbox Options', 'WP Lightbox 2', 'manage_options', 'jquery-lightbox-options', 'jqlb_options_panel');
}
function jqlb_get_locale() {
	//$lang_locales and ICL_LANGUAGE_CODE are defined in the WPML plugin (https://wpml.org/)
	global $lang_locales;

	if (defined('ICL_LANGUAGE_CODE') && isset($lang_locales[ICL_LANGUAGE_CODE])) {
		$locale = $lang_locales[ICL_LANGUAGE_CODE];
	} else {
		$locale = get_locale();
	}

	return $locale;
}
function jqlb_css() {
	if ( is_admin() || is_feed() || wp_doing_ajax() ) {
		return;
	}

	$locale   = jqlb_get_locale();
	$fileName = "lightbox.min.{$locale}.css";
	$path     = plugin_dir_path(__FILE__) . "styles/{$fileName}";

	if ( ! is_readable( $path ) ) {
		$fileName = 'lightbox.min.css';
	}

	wp_enqueue_style('wp-lightbox-2.min.css', plugin_dir_url(__FILE__) . 'styles/' . $fileName, false, '1.3.4');
}
function jqlb_js() {
	if ( is_admin() || is_feed() || wp_doing_ajax() ) {
		return;
	}

	wp_enqueue_script('jquery', '', array(), '1.7.1', true);
	wp_enqueue_script('wp-jquery-lightbox', plugins_url(JQLB_SCRIPT, __FILE__ ),  Array('jquery'), '1.3.4.1', true);

	global $wp_lightbox_2;
	$wp_lightbox_2->parametrs;

	$parametrs_array = array(
		'fitToScreen'         => (int) get_option('jqlb_resize_on_demand'),
		'resizeSpeed'         => (int) get_option('jqlb_resize_speed'),
		'displayDownloadLink' => (int) get_option('jqlb_show_download'),
		'navbarOnTop'         => (int) get_option('jqlb_navbarOnTop'),
		'loopImages'          => (int) get_option('jqlb_loopImages'),
		'resizeCenter'        => (int) get_option('jqlb_resizeCenter'),
		'marginSize'          => (int) get_option('jqlb_margin_size'),
		'linkTarget'          => esc_js( get_option('jqlb_link_target') ),
		'help'                => esc_js( get_option('jqlb_help_text') ),
		'prevLinkTitle'       => esc_js( $wp_lightbox_2->parametrs->get_design_settings['jqlb_previous_image_title'] ),
		'nextLinkTitle'       => esc_js( $wp_lightbox_2->parametrs->get_design_settings['jqlb_next_image_title'] ),
		'closeTitle'          => esc_js( $wp_lightbox_2->parametrs->get_design_settings['jqlb_close_image_title'] ),
		'prevLinkText'        => __( '&laquo; Previous', 'jqlb' ),
		'nextLinkText'        => __( 'Next &raquo;', 'jqlb' ),
		'image'               => __( 'Image ', 'jqlb' ),
		'of'                  => __( ' of ', 'jqlb' ),
		'download'            => __( 'Download', 'jqlb' )
	);

	foreach ( $wp_lightbox_2->parametrs->get_design_settings as $key => $value ) {
		$parametrs_array[ $key ] = $value;
	}

	wp_localize_script(
		'wp-jquery-lightbox',
		'JQLBSettings',
		$parametrs_array
	);
}

function jqlb_lightbox_comment( $comment = '' ) {
	$comment = str_replace('rel=\'external nofollow\'','', $comment);
	$comment = str_replace('rel=\'nofollow\'','', $comment);
	$comment = str_replace('rel="external nofollow"','', $comment);
	$comment = str_replace('rel="nofollow"','', $comment);

	return jqlb_autoexpand_rel_wlightbox($comment);
}

function jqlb_autoexpand_rel_wlightbox( $content = '' ) {
	if ( 1 === (int) get_option('jqlb_automate') ) {
		global $post;
		$id = ($post->ID) ? $post->ID : -1;
		$content = jqlb_do_regexp($content, $id); //legacy regex function when images don't have rel tags
		$content = wplbtwo_do_regexp($content, $id);
	}
	return $content;
}
function jqlb_apply_lightbox($content, $id = -1) {
	if(!isset($id) || $id === -1) {
		$id = time() . wp_rand( 0, 32768 );
	}
	return jqlb_do_regexp($content, $id);
}

/* automatically insert rel="lightbox[nameofpost]" to every image with no manual work.
	if there are already rel="lightbox[something]" attributes, they are not clobbered.
	Michael Tyson, you are a regular expressions god! - https://atastypixel.com */
function jqlb_do_regexp($content, $id) {
	$pattern = "/(<a(?![^>]*?rel=['\"]lightbox.*)(?![^>]*?rel=.*)[^>]*?href=['\"][^'\"]+?\.(?:bmp|gif|jpg|jpeg|png)\?{0,1}\S{0,}['\"][^\>]*)>/i";
	$replacement = '$1 rel="lightbox[' . esc_attr( $id ) . ']">';

	return preg_replace($pattern, $replacement, $content);
}

/**
 * Automatically includes 'lightbox[$id]' into rel tag of images.
 *
 * @param $content
 * @param $id
 *
 * @return mixed
 *
 * @since 3.0.6.2
 */
function wplbtwo_do_regexp($content, $id) {
	$pattern = "/(<a(?![^>]*?rel=['\"]lightbox.*)[^>]*?href=['\"][^'\"]+?\.(?:bmp|gif|jpg|jpeg|png)\?{0,1}\S{0,}['\"][^\>]*)(rel=['\"])(.*?)>/i";
	$replacement = '$1 $2lightbox[' . esc_attr( $id ) . '] $3>';

	return preg_replace($pattern, $replacement, $content);
}

function jqlb_bool_intval( $v = 0 ) {
	return ( 1 === (int) $v ) ? '1' : '0';
}

function jqlb_pos_intval($v) {
	return abs(intval($v));
}

function jplb_help_kses($t) {
	return wp_kses_post($t);
}

function jqlb_options_panel() {

	if ( ! function_exists( 'current_user_can' ) || ! current_user_can( 'manage_options' ) ) {
		die(__('Cheatin&#8217; uh?', 'jqlb'));
	}

	?>

	<div class="wrap">
	<h2>WP Lightbox 2</h2>
	<?php include_once plugin_dir_path(__FILE__) . 'about.php'; ?>
	<form method="post" action="options.php">
		<table>
			<?php settings_fields('jqlb-settings-group'); ?>
			<tr valign="baseline" colspan="2">
				<td colspan="">
					<input type="checkbox" id="jqlb_automate" name="jqlb_automate" value="1" <?php checked( (bool) get_option('jqlb_automate') ); ?> />
					<label for="jqlb_automate" title="<?php _e('Let the plugin add necessary html to image links', 'jqlb') ?>"> <?php _e('Auto-lightbox image links', 'jqlb') ?></label>
				</td>
			</tr>
			<tr valign="baseline" colspan="2">
				<td colspan="2">
					<input type="checkbox" id="jqlb_comments" name="jqlb_comments" value="1" <?php checked( (bool) get_option('jqlb_comments') ); ?> />
					<label for="jqlb_comments" title="<?php _e('Note: this will disable the nofollow-attribute of comment links, that otherwise interfere with the lightbox.', 'jqlb') ?>"> <?php _e('Enable lightbox in comments (disables <a href="https://codex.wordpress.org/Nofollow">the nofollow attribute!</a>)', 'jqlb') ?></label>
				</td>
			</tr>
			<tr valign="baseline" colspan="2">
				<td>
					<input type="checkbox" id="jqlb_show_download" name="jqlb_show_download" value="1" <?php checked( (bool) get_option('jqlb_show_download') ); ?> />
					<label for="jqlb_show_download"> <?php _e('Show download link', 'jqlb') ?> </label>
				</td>
				<td>
					<label for="jqlb_link_target" title="<?php _e('_blank: open the image in a new window or tab
_self: open the image in the same frame as it was clicked (default)
_parent: open the image in the parent frameset
_top: open the image in the full body of the window', 'jqlb') ?>"><?php _e('Target for download link:', 'jqlb'); ?></label>
					<select id="jqlb_link_target" name="jqlb_link_target">
						<option <?php selected( get_option('jqlb_link_target'), '_blank'  ); ?>>_blank</option>
						<option <?php selected( get_option('jqlb_link_target'), '_self'   ); ?>>_self</option>
						<option <?php selected( get_option('jqlb_link_target'), '_top'    ); ?>>_top</option>
						<option <?php selected( get_option('jqlb_link_target'), '_parent' ); ?>>_parent</option>
					</select>
				</td>
			</tr>
			<tr valign="baseline" colspan="2">
				<td colspan="2">
					<input type="checkbox" id="jqlb_navbarOnTop" name="jqlb_navbarOnTop" value="1" <?php checked( (bool) get_option('jqlb_navbarOnTop') ); ?> />
					<label for="jqlb_navbarOnTop">
						<?php _e('Show image info on top', 'jqlb') ?>
					</label>
				</td>
			</tr>
			<tr valign="baseline" colspan="2">
				<td>
					<input type="checkbox" id="jqlb_resize_on_demand" name="jqlb_resize_on_demand" value="1" <?php checked( (bool) get_option('jqlb_resize_on_demand') ); ?> />
					<label for="jqlb_resize_on_demand"><?php _e('Shrink large images to fit smaller screens', 'jqlb') ?></label>
				</td>
				<?php if ( get_option('jqlb_resize_on_demand') ) : ?>
				<td>
					<input type="text" id="jqlb_margin_size" name="jqlb_margin_size" value="<?php echo floatval(get_option('jqlb_margin_size')) ?>" size="3" />
					<label for="jqlb_margin_size" title="<?php _e('Keep a distance between the image and the screen edges.', 'jqlb') ?>"><?php _e('Minimum margin to screen edge (default: 0)', 'jqlb') ?></label>
				</td>
				<?php endif; ?>
			</tr>
			<tr valign="baseline" colspan="2">
				<td colspan="2">
					<input type="text" id="jqlb_resize_speed" name="jqlb_resize_speed" value="<?php echo intval(get_option('jqlb_resize_speed')) ?>" size="3" />
					<label for="jqlb_resize_speed"><?php _e('Animation duration (in milliseconds) ', 'jqlb') ?></label>
				</td>
			</tr>
			<tr valign="baseline" colspan="2">
				<td>
					<input type="text" id="jqlb_help_text" name="jqlb_help_text" value="<?php echo get_option('jqlb_help_text'); ?>" size="30" />
					<label for="jqlb_help_text"><?php _e('Help text (default: none) ', 'jqlb'); ?></label>
				</td>
			</tr>
			 </table>
			<p style="font-size:xx-small;font-style:italic;"><?php _e('Browse images with your keyboard: Arrows or P(revious)/N(ext) and X/C/ESC for close.', 'jqlb'); ?></p>
			<p class="submit">
			  <input type="submit" name="Submit" value="<?php _e('Save Changes', 'jqlb') ?>" />
			</p>
		</form>
	<?php
		$locale = jqlb_get_locale();
		$diskfile = plugin_dir_path(__FILE__)."I18n/howtouse-{$locale}.html";
		if (!file_exists($diskfile)) {
			$diskfile = plugin_dir_path(__FILE__).'I18n/howtouse.html';
		}
		$text = false;
		if(function_exists('file_get_contents')) {
			$text = file_get_contents($diskfile);
		} else {
			$text = file($diskfile);
			if($text !== false) {
				$text = implode("", $text);
			}
		}
		if($text === false) {
			$text = '<p>The documentation files are missing! Try <a href="https://wordpress.org/extend/plugins/wp-lightbox-2/">downloading</a> and <a href="https://wordpress.org/extend/plugins/wp-lightbox-2/installation/">re-installing</a> this lightbox plugin.</p>';
		}
		echo $text;
	?>
	</div>
<?php }

function jqlb_hex2rgba($color, $opacity = false) {

	$default = 'rgb(0,0,0)';

	if(empty($color)) {
		return $default;
	}

	if ($color[0] == '#' ) {
		$color = substr( $color, 1 );
	}

	if (strlen($color) == 6) {
		$hex = array( $color[0] . $color[1], $color[2] . $color[3], $color[4] . $color[5] );
	} elseif ( strlen( $color ) == 3 ) {
		$hex = array( $color[0] . $color[0], $color[1] . $color[1], $color[2] . $color[2] );
	} else {
		return $default;
	}

	$rgb =  array_map('hexdec', $hex);

	if($opacity) {
		if(abs($opacity) > 1) {
			$opacity = 1.0;
		}
		$output = 'rgba('.implode(",",$rgb).','.$opacity.')';
	} else {
		$output = 'rgb('.implode(",",$rgb).')';
	}

	return $output;
}
class wp_lightbox_2{

	private $plugin_url;
	private $plugin_path;
	private $version;

	public $options;
	public $parametrs;

	public function __construct() {

		$this->plugin_url  = trailingslashit( plugins_url('', __FILE__ ) );
		$this->plugin_path = trailingslashit( plugin_dir_path( __FILE__ ) );
		$this->version     = 1.0;

		require_once $this->plugin_path . 'includes/install_database.php';

		$this->parametrs = new wp_lightbox2_database_params();

		$this->call_base_filters();
		$this->create_admin_menu();
	}
	private function create_admin_menu() {

		require_once $this->plugin_path.'admin/admin_menu.php';

		$admin_menu = new wp_lightbox_admin_menu( array(
			'plugin_url'         => $this->plugin_url,
			'plugin_path'        => $this->plugin_path,
			'databese_parametrs' => $this->parametrs
		) );

		add_action('admin_menu', array( $admin_menu, 'create_menu' ) );
	}
	public function registr_requeried_scripts() {
		wp_register_script('angularejs',$this->plugin_url . 'admin/scripts/angular.min.js');
		wp_register_style('admin_style_wp_lightbox',$this->plugin_url . 'admin/styles/admin_themplate.css');
		wp_register_style('jquery-ui-style',$this->plugin_url . 'admin/styles/jquery-ui.css');
	}
	public function enqueue_requeried_scripts() {
		wp_enqueue_style("jquery-ui-style");
		wp_enqueue_script("jquery-ui-slider");
	}
	public function call_base_filters() {
		add_action( 'init',  array($this,'registr_requeried_scripts') );
		add_action( 'admin_head',  array($this,'enqueue_requeried_scripts') );
	}
}

$wp_lightbox_2 = new wp_lightbox_2();