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<?php
/**
* This file defines the main easyFancyBox class for the plugin.
*
* @package Easy_FancyBox
* @author FirelightWP
* @license GPL-2.0+
*
* @version 1.0.0
*/
/**
* The main Easy FancyBox class.
*
* Handles general and frontend logic.
* The easyFancyBox_Admin handles admin logic.
*
* Class name should uppercase, but defined as lowercase long ago.
* We leave it as is for backward compatibility.
*
* @since 1.0.0
*/
class easyFancyBox { // phpcs:ignore
/**
* URL for the plugin.
*
* @var string
*/
public static $plugin_url;
/**
* Priority level for the plugin.
*
* @var int
*/
public static $priority;
/**
* Base name for the plugin.
*
* @var string
*/
public static $plugin_basename;
/**
* Flag to determine if scripts should be added.
*
* @var bool
*/
public static $add_scripts;
/**
* Array to store styles.
*
* @var array
*/
public static $styles = array();
/**
* Array to store inline styles.
*
* @var array
*/
public static $inline_styles = array();
/**
* Array to store scripts.
*
* @var array
*/
public static $scripts = array();
/**
* Array to store inline scripts.
*
* @var array
*/
public static $inline_scripts = array();
/**
* URL for the style.
*
* @var string
*/
public static $style_url;
/**
* URL for the IE-specific style.
*
* @var string
*/
public static $style_ie_url;
/**
* URL for the script.
*
* @var string
*/
public static $script_url;
/**
* Inline script.
*
* @var string
*/
public static $inline_script;
/**
* Inline style.
*
* @var string
*/
public static $inline_style;
/**
* IE-specific inline style.
*
* @var string
*/
public static $inline_style_ie;
/**
* URL for the easing script.
*
* @var string
*/
public static $easing_script_url;
/**
* URL for the mousewheel script.
*
* @var string
*/
public static $mousewheel_script_url;
/**
* URL for the metadata script.
*
* @var string
*/
public static $metadata_script_url;
/**
* Flag to determine if onready_auto is enabled.
*
* @var bool
*/
public static $onready_auto = false;
/**
* Array to store options.
*
* @var array
*/
public static $options = array();
/**
* Array to store events.
*
* @var array
*/
public static $events = array( 'post-load' );
/**
* URL for the pro plugin.
*
* @var string
*/
public static $pro_plugin_url = 'https://firelightwp.com/pro-lightbox/';
/**
* Array to store free lightboxes.
*
* @var array
*/
public static $free_lightboxes;
/**
* Constructor for the class.
*
* @since 1.0.0
* @access public
*
* @return void
*/
public function __construct() {
global $wp_version;
self::$plugin_url = plugins_url( '/', EASY_FANCYBOX_BASENAME /* EASY_FANCYBOX_DIR.'/easy-fancybox.php' */ );
self::$free_lightboxes = array(
'legacy' => 'FancyBox Legacy',
'classic' => 'FancyBox Classic Reloaded',
'fancyBox2' => 'FancyBox V2',
'fancybox5-promo' => 'Firelight Pro Lightbox',
);
// Frontend hooks.
add_action( 'init', array( __CLASS__, 'extend' ), 9 );
// Disable core lightbox.
if (
isset( $wp_version )
&& version_compare( $wp_version, '6.5.0' ) >= 0
&& self::should_disable_core_lightbox()
) {
add_action( 'wp_enqueue_scripts', array( __CLASS__, 'disable_core_lightbox_on_frontend' ), 99 );
add_filter( 'wp_theme_json_data_user', array( __CLASS__, 'hide_core_lightbox_in_editor' ) );
}
}
/**
* Retrieve the lightboxes.
*
* Gets list of available lightboxes.
* Also defines firelight_get_lightboxes filter that
* can be used elsewhere to add lightboxes to the array.
*
* @since 2.0.0
* @access public
*
* @return array Returns an array of lightboxes.
*/
public static function get_lightboxes() {
return apply_filters( 'firelight_get_lightboxes', self::$free_lightboxes );
}
/**
* Enqueue scripts and styles.
*
* @since 1.0.0
* @access public
*
* @return void
*/
public static function enqueue_scripts() {
// Make sure whe actually need to do anything.
if ( ! self::add_scripts() ) {
return;
}
global $wp_styles;
$_dep = get_option( 'fancybox_nojQuery', false ) ? array( 'fancybox-purify' ) : array( 'fancybox-purify', 'jquery' );
$_ver = defined( 'WP_DEBUG' ) && WP_DEBUG ? time() : false;
$_footer = get_option( 'fancybox_noFooter', false ) ? false : true;
// Register DomPurify Script for use below and elsewhere.
$purify_script_url = \easyFancyBox::$plugin_url . 'vendor/purify.min.js';
wp_register_script( 'fancybox-purify', $purify_script_url, array(), $_ver, $_footer );
// Enqueue styles.
if ( ! empty( self::$styles ) ) {
foreach ( self::$styles as $handle => $options ) {
$src = ! empty( $options['src'] ) ? $options['src'] : '';
$deps = ! empty( $options['deps'] ) ? (array) $options['deps'] : array();
$ver = ! empty( $options['ver'] ) ? $options['ver'] : $_ver;
$media = ! empty( $options['media'] ) ? $options['media'] : 'all';
wp_enqueue_style( $handle, $src, $deps, $ver, $media );
if ( ! empty( $options['conditional'] ) ) {
$wp_styles->add_data( $handle, 'conditional', $options['conditional'] );
}
}
} else {
wp_enqueue_style( 'fancybox', self::$style_url, array(), $_ver, 'screen' );
if ( ! empty( self::$inline_style_ie ) ) {
wp_enqueue_style( 'fancybox-ie', self::$style_ie_url, false, null, 'screen' );
$wp_styles->add_data( 'fancybox-ie', 'conditional', 'lt IE 9' );
}
}
// Enqueue JS.
if ( ! empty( self::$scripts ) ) {
foreach ( self::$scripts as $handle => $options ) {
$src = ! empty( $options['src'] ) ? $options['src'] : '';
$deps = ! empty( $options['deps'] ) ? (array) $options['deps'] : array();
$ver = ! empty( $options['ver'] ) ? $options['ver'] : $_ver;
wp_enqueue_script( $handle, $src, $deps, $ver, ! empty( $options['footer'] ) );
}
} else {
// Register main fancybox script.
wp_enqueue_script( 'jquery-fancybox', self::$script_url, $_dep, $_ver, $_footer );
// Metadata in Miscellaneous settings?
if ( ! empty( self::$metadata_script_url ) ) {
wp_enqueue_script( 'jquery-metadata', self::$metadata_script_url, $_dep, METADATA_VERSION, $_footer );
}
}
// jQuery Easing, which is not needed if jQueryUI Core Effects are loaded or when using fancyBox 3.
if ( ! empty( self::$easing_script_url ) && ! wp_script_is( 'jquery-effects-core', 'enqueued' ) ) {
wp_enqueue_script( 'jquery-easing', self::$easing_script_url, $_dep, EASING_VERSION, $_footer );
}
// jQuery Mousewheel, which is not needed if jQueryUI Mouse is loaded or when using fancyBox 3.
if ( ! empty( self::$mousewheel_script_url ) && ! wp_script_is( 'jquery-ui-mouse', 'enqueued' ) ) {
wp_enqueue_script( 'jquery-mousewheel', self::$mousewheel_script_url, $_dep, MOUSEWHEEL_VERSION, $_footer );
}
// Inline styles.
if ( ! empty( self::$inline_styles ) ) {
foreach ( self::$inline_styles as $handle => $data ) {
if ( function_exists( 'wp_add_inline_style' ) && ! get_option( 'fancybox_pre45Compat', false ) ) {
wp_add_inline_style( $handle, $data );
} else {
// Do it the old way.
add_action(
'wp_head',
function () use ( $data ) {
print( '<style id="fancybox-inline-css" type="text/css">' . $data . '</style>' );
},
self::priority()
);
}
}
} else { // phpcs:ignore
if ( function_exists( 'wp_add_inline_style' ) && ! get_option( 'fancybox_pre45Compat', false ) ) {
empty( self::$inline_style ) || wp_add_inline_style( 'fancybox', self::$inline_style );
empty( self::$inline_style_ie ) || wp_add_inline_style( 'fancybox-ie', self::$inline_style_ie );
} else {
// Do it the old way.
empty( self::$inline_style ) || add_action(
'wp_head',
function () {
print(
'<style id="fancybox-inline-css" type="text/css">' . self::$inline_style . '</style>'
);
},
self::priority()
);
empty( self::$inline_style_ie ) || add_action(
'wp_head',
function () {
print( '<!--[if lt IE 9]><style id="fancybox-inline-css-ie" type="text/css">' . self::$inline_style_ie . '</style><![endif]-->' );
},
self::priority()
);
}
}
// Inline scripts.
if ( ! empty( self::$inline_scripts ) ) {
foreach ( self::$inline_scripts as $handle => $data ) {
if ( is_array( $data ) ) {
$position = ! empty( $data['position'] ) ? $data['position'] : 'after';
$data = ! empty( $data['data'] ) ? $data['data'] : '';
}
if ( function_exists( 'wp_add_inline_script' ) && ! get_option( 'fancybox_pre45Compat', false ) ) {
wp_add_inline_script( $handle, $data, $position );
} else {
// Do it the old way.
$priority = self::priority();
if ( 'after' !== $position ) {
$priority = $priority - 1; // phpcs:ignore
}
add_action(
$_footer ? 'wp_footer' : 'wp_head',
function () use ( $data ) {
print( '<script type="text/javascript">' . $data . '</script>' );
},
$priority
);
}
}
} else { // phpcs:ignore
if ( function_exists( 'wp_add_inline_script' ) && ! get_option( 'fancybox_pre45Compat', false ) ) {
empty( self::$inline_script ) || wp_add_inline_script( 'jquery-fancybox', self::$inline_script );
} else {
// Do it the old way.
empty( self::$inline_script ) || add_action(
$_footer ? 'wp_footer' : 'wp_head',
function () {
print( '<script type="text/javascript">' . self::$inline_script . '</script>' );
},
self::priority()
);
}
}
// Add translation strings for Fancybox and helpers.
$efb_i18n = array(
'close' => __( 'Close', 'easy-fancybox' ),
'next' => __( 'Next', 'easy-fancybox' ),
'prev' => __( 'Previous', 'easy-fancybox' ),
'startSlideshow' => __( 'Start slideshow', 'easy-fancybox' ),
'toggleSize' => __( 'Toggle size', 'easy-fancybox' ),
);
wp_localize_script( 'jquery-fancybox', 'efb_i18n', $efb_i18n );
wp_localize_script( 'jquery-fancybox-buttons', 'efb_i18n', $efb_i18n );
}
/**
* Determines if the core lightbox should be disabled.
*
* @since 2.0.0
* @access public
*
* @return bool Returns true if the core lightbox should be disabled, false otherwise.
*/
public static function should_disable_core_lightbox() {
$selected_lightbox = get_option( 'fancybox_scriptVersion', 'classic' );
$is_free_lightbox = in_array( $selected_lightbox, array_keys( self::$free_lightboxes ), true );
$is_pro_lightbox = 'fancybox5' === $selected_lightbox;
$disable_for_free_lightboxes = get_option( 'fancybox_disableCoreLightbox', true );
$disable_for_pro_lightbox = get_option( 'fancybox5_disable_core_lightbox', true );
if ( $is_free_lightbox && $disable_for_free_lightboxes ) {
return true;
}
if ( $is_pro_lightbox && $disable_for_pro_lightbox ) {
return true;
}
return false;
}
/**
* Disables the core lightbox on the frontend.
*
* Details:
* https://github.com/WordPress/gutenberg/blob/8dc36f6d30cc163671bdaa33f0656fdfe91f1447/packages/block-library/src/image/index.php#L64
*
* @since 2.0.0
* @access public
*
* @return void
*/
public static function disable_core_lightbox_on_frontend() {
if ( function_exists( 'wp_dequeue_script_module' ) ) {
wp_dequeue_script_module( '@wordpress/block-library/image' );
}
remove_filter( 'render_block_core/image', 'block_core_image_render_lightbox', 15 );
remove_filter( 'render_block_core/image', 'block_core_image_render_lightbox', 15, 2 );
}
/**
* Hides the core lightbox in the editor.
* Does this by filtering $theme_json.
*
* @since 2.0.0
* @access public
*
* @param obj $theme_json The theme JSON configuration.
*
* @return obj Filtered theme_json.
*/
public static function hide_core_lightbox_in_editor( $theme_json ) {
$new_data = array(
'version' => 2,
'settings' => array(
'blocks' => array(
'core/image' => array(
'lightbox' => array(
'allowEditing' => false,
'enabled' => false,
),
),
),
),
);
return $theme_json->update_with( $new_data );
}
/**
* Add video wmode opaque.
*
* Hack to fix missing wmode in Youtube oEmbed code based on David C's code in the comments on
* http://www.mehigh.biz/wordpress/adding-wmode-transparent-to-wordpress-3-media-embeds.html
* without the wmode, videos will float over the light box no matter what z-index is set.
*
* @since 1.0.0
* @access public
*
* @param string $html Content to filter.
* @return string $html Fitlered content.
*/
public static function add_video_wmode_opaque( $html ) {
// Make sure whe actually need this at all.
if ( ! self::add_scripts() ) {
return $html;
}
if ( strpos( $html, '<embed src=' ) !== false ) {
$html = str_replace( '</param><embed', '</param><param name="wmode" value="opaque"></param><embed wmode="opaque"', $html );
} elseif ( strpos( $html, 'youtube' ) !== false && strpos( $html, 'wmode' ) === false ) {
$html = str_replace( 'feature=oembed', 'feature=oembed&wmode=opaque', $html );
} elseif ( strpos( $html, 'vimeo' ) !== false && strpos( $html, 'wmode' ) === false ) {
$html = str_replace( '" width', '?theme=none&wmode=opaque" width', $html );
} elseif ( strpos( $html, 'dailymotion' ) !== false && strpos( $html, 'wmode' ) === false ) {
$html = str_replace( '" width', '?wmode=opaque" width', $html );
}
return $html;
}
/**
* Get or set the priority.
*
* @since 1.0.0
* @access public
*
* @return int Returns the priority of the object.
*/
public static function priority() {
if ( null === self::$priority ) {
$priority = get_option( 'fancybox_scriptPriority' );
self::$priority = is_numeric( $priority ) ? (int) $priority : 10;
}
return self::$priority;
}
/**
* Add scripts to the page.
*
* @since 1.0.0
* @access public
*
* @return bool $add_scripts
*/
public static function add_scripts() {
if ( null === self::$add_scripts ) {
_doing_it_wrong( __FUNCTION__, 'Method easyFancyBox::add_scripts() has been called before init.', '2.0' );
return false;
}
return self::$add_scripts;
}
/**
* Applies fancybox lightbox based on which lightbox is selected.
*
* This only handles the original fancybox scripts for now.
* If Pro lightbox is selected, switch here will not load anything.
*
* @since 1.0.0
* @access public
*
* @return void
*/
public static function extend() {
$script_version = get_option( 'fancybox_scriptVersion', 'classic' );
if ( empty( self::$options ) ) {
include EASY_FANCYBOX_DIR . '/inc/fancybox-options.php';
self::$options = $efb_options;
}
foreach ( self::$options['Global']['options']['Enable']['options'] as $value ) {
if ( isset( $value['id'] ) && '1' === get_option( $value['id'], $value['default'] ) ) {
self::$add_scripts = true;
break;
} else {
self::$add_scripts = false;
}
}
switch ( $script_version ) {
case 'legacy':
include EASY_FANCYBOX_DIR . '/inc/fancybox-legacy.php';
break;
case 'fancyBox2':
include EASY_FANCYBOX_DIR . '/inc/fancybox-2.php';
if ( ! class_exists( 'easyFancyBox_Admin' ) ) {
include EASY_FANCYBOX_DIR . '/inc/class-easyfancybox-admin.php';
}
self::$options = easyFancyBox_Admin::rename_fb2_options( self::$options );
break;
case 'classic':
include EASY_FANCYBOX_DIR . '/inc/fancybox-classic.php';
break;
default:
break;
}
add_action( 'wp_enqueue_scripts', array( __CLASS__, 'enqueue_scripts' ), self::priority() );
}
}