<?php
/**
 * YITH Icons Class.
 *
 * @class       YIT_Icons
 * @package     YITH\PluginFramework\Classes
 */

defined( 'ABSPATH' ) || exit; // Exit if accessed directly.

if ( ! class_exists( 'YIT_Icons' ) ) {
	/**
	 * YIT_Icons class.
	 *
	 * @author      YITH <plugins@yithemes.com>
	 */
	class YIT_Icons {

		/**
		 * The single instance of the class.
		 *
		 * @var YIT_Icons
		 */
		private static $instance;

		/**
		 * Array of data
		 *
		 * @var array
		 */
		private $data
			= array(
				'font_awesome_version' => '4.7.0',
				'icons'                => array(
					'FontAwesome' => array(
						'\f000' => 'glass',
						'\f001' => 'music',
						'\f002' => 'search',
						'\f003' => 'envelope-o',
						'\f004' => 'heart',
						'\f005' => 'star',
						'\f006' => 'star-o',
						'\f007' => 'user',
						'\f008' => 'film',
						'\f009' => 'th-large',
						'\f00a' => 'th',
						'\f00b' => 'th-list',
						'\f00c' => 'check',
						'\f00d' => 'times',
						'\f00e' => 'search-plus',
						'\f010' => 'search-minus',
						'\f011' => 'power-off',
						'\f012' => 'signal',
						'\f013' => 'cog',
						'\f014' => 'trash-o',
						'\f015' => 'home',
						'\f016' => 'file-o',
						'\f017' => 'clock-o',
						'\f018' => 'road',
						'\f019' => 'download',
						'\f01a' => 'arrow-circle-o-down',
						'\f01b' => 'arrow-circle-o-up',
						'\f01c' => 'inbox',
						'\f01d' => 'play-circle-o',
						'\f01e' => 'repeat',
						'\f021' => 'refresh',
						'\f022' => 'list-alt',
						'\f023' => 'lock',
						'\f024' => 'flag',
						'\f025' => 'headphones',
						'\f026' => 'volume-off',
						'\f027' => 'volume-down',
						'\f028' => 'volume-up',
						'\f029' => 'qrcode',
						'\f02a' => 'barcode',
						'\f02b' => 'tag',
						'\f02c' => 'tags',
						'\f02d' => 'book',
						'\f02e' => 'bookmark',
						'\f02f' => 'print',
						'\f030' => 'camera',
						'\f031' => 'font',
						'\f032' => 'bold',
						'\f033' => 'italic',
						'\f034' => 'text-height',
						'\f035' => 'text-width',
						'\f036' => 'align-left',
						'\f037' => 'align-center',
						'\f038' => 'align-right',
						'\f039' => 'align-justify',
						'\f03a' => 'list',
						'\f03b' => 'outdent',
						'\f03c' => 'indent',
						'\f03d' => 'video-camera',
						'\f03e' => 'picture-o',
						'\f040' => 'pencil',
						'\f041' => 'map-marker',
						'\f042' => 'adjust',
						'\f043' => 'tint',
						'\f044' => 'pencil-square-o',
						'\f045' => 'share-square-o',
						'\f046' => 'check-square-o',
						'\f047' => 'arrows',
						'\f048' => 'step-backward',
						'\f049' => 'fast-backward',
						'\f04a' => 'backward',
						'\f04b' => 'play',
						'\f04c' => 'pause',
						'\f04d' => 'stop',
						'\f04e' => 'forward',
						'\f050' => 'fast-forward',
						'\f051' => 'step-forward',
						'\f052' => 'eject',
						'\f053' => 'chevron-left',
						'\f054' => 'chevron-right',
						'\f055' => 'plus-circle',
						'\f056' => 'minus-circle',
						'\f057' => 'times-circle',
						'\f058' => 'check-circle',
						'\f059' => 'question-circle',
						'\f05a' => 'info-circle',
						'\f05b' => 'crosshairs',
						'\f05c' => 'times-circle-o',
						'\f05d' => 'check-circle-o',
						'\f05e' => 'ban',
						'\f060' => 'arrow-left',
						'\f061' => 'arrow-right',
						'\f062' => 'arrow-up',
						'\f063' => 'arrow-down',
						'\f064' => 'share',
						'\f065' => 'expand',
						'\f066' => 'compress',
						'\f067' => 'plus',
						'\f068' => 'minus',
						'\f069' => 'asterisk',
						'\f06a' => 'exclamation-circle',
						'\f06b' => 'gift',
						'\f06c' => 'leaf',
						'\f06d' => 'fire',
						'\f06e' => 'eye',
						'\f070' => 'eye-slash',
						'\f071' => 'exclamation-triangle',
						'\f072' => 'plane',
						'\f073' => 'calendar',
						'\f074' => 'random',
						'\f075' => 'comment',
						'\f076' => 'magnet',
						'\f077' => 'chevron-up',
						'\f078' => 'chevron-down',
						'\f079' => 'retweet',
						'\f07a' => 'shopping-cart',
						'\f07b' => 'folder',
						'\f07c' => 'folder-open',
						'\f07d' => 'arrows-v',
						'\f07e' => 'arrows-h',
						'\f080' => 'bar-chart',
						'\f081' => 'twitter-square',
						'\f082' => 'facebook-square',
						'\f083' => 'camera-retro',
						'\f084' => 'key',
						'\f085' => 'cogs',
						'\f086' => 'comments',
						'\f087' => 'thumbs-o-up',
						'\f088' => 'thumbs-o-down',
						'\f089' => 'star-half',
						'\f08a' => 'heart-o',
						'\f08b' => 'sign-out',
						'\f08c' => 'linkedin-square',
						'\f08d' => 'thumb-tack',
						'\f08e' => 'external-link',
						'\f090' => 'sign-in',
						'\f091' => 'trophy',
						'\f092' => 'github-square',
						'\f093' => 'upload',
						'\f094' => 'lemon-o',
						'\f095' => 'phone',
						'\f096' => 'square-o',
						'\f097' => 'bookmark-o',
						'\f098' => 'phone-square',
						'\f099' => 'twitter',
						'\f09a' => 'facebook',
						'\f09b' => 'github',
						'\f09c' => 'unlock',
						'\f09d' => 'credit-card',
						'\f09e' => 'rss',
						'\f0a0' => 'hdd-o',
						'\f0a1' => 'bullhorn',
						'\f0a2' => 'bell-o',
						'\f0a3' => 'certificate',
						'\f0a4' => 'hand-o-right',
						'\f0a5' => 'hand-o-left',
						'\f0a6' => 'hand-o-up',
						'\f0a7' => 'hand-o-down',
						'\f0a8' => 'arrow-circle-left',
						'\f0a9' => 'arrow-circle-right',
						'\f0aa' => 'arrow-circle-up',
						'\f0ab' => 'arrow-circle-down',
						'\f0ac' => 'globe',
						'\f0ad' => 'wrench',
						'\f0ae' => 'tasks',
						'\f0b0' => 'filter',
						'\f0b1' => 'briefcase',
						'\f0b2' => 'arrows-alt',
						'\f0c0' => 'users',
						'\f0c1' => 'link',
						'\f0c2' => 'cloud',
						'\f0c3' => 'flask',
						'\f0c4' => 'scissors',
						'\f0c5' => 'files-o',
						'\f0c6' => 'paperclip',
						'\f0c7' => 'floppy-o',
						'\f0c8' => 'square',
						'\f0c9' => 'bars',
						'\f0ca' => 'list-ul',
						'\f0cb' => 'list-ol',
						'\f0cc' => 'strikethrough',
						'\f0cd' => 'underline',
						'\f0ce' => 'table',
						'\f0d0' => 'magic',
						'\f0d1' => 'truck',
						'\f0d2' => 'pinterest',
						'\f0d3' => 'pinterest-square',
						'\f0d4' => 'google-plus-square',
						'\f0d5' => 'google-plus',
						'\f0d6' => 'money',
						'\f0d7' => 'caret-down',
						'\f0d8' => 'caret-up',
						'\f0d9' => 'caret-left',
						'\f0da' => 'caret-right',
						'\f0db' => 'columns',
						'\f0dc' => 'sort',
						'\f0dd' => 'sort-desc',
						'\f0de' => 'sort-asc',
						'\f0e0' => 'envelope',
						'\f0e1' => 'linkedin',
						'\f0e2' => 'undo',
						'\f0e3' => 'gavel',
						'\f0e4' => 'tachometer',
						'\f0e5' => 'comment-o',
						'\f0e6' => 'comments-o',
						'\f0e7' => 'bolt',
						'\f0e8' => 'sitemap',
						'\f0e9' => 'umbrella',
						'\f0ea' => 'clipboard',
						'\f0eb' => 'lightbulb-o',
						'\f0ec' => 'exchange',
						'\f0ed' => 'cloud-download',
						'\f0ee' => 'cloud-upload',
						'\f0f0' => 'user-md',
						'\f0f1' => 'stethoscope',
						'\f0f2' => 'suitcase',
						'\f0f3' => 'bell',
						'\f0f4' => 'coffee',
						'\f0f5' => 'cutlery',
						'\f0f6' => 'file-text-o',
						'\f0f7' => 'building-o',
						'\f0f8' => 'hospital-o',
						'\f0f9' => 'ambulance',
						'\f0fa' => 'medkit',
						'\f0fb' => 'fighter-jet',
						'\f0fc' => 'beer',
						'\f0fd' => 'h-square',
						'\f0fe' => 'plus-square',
						'\f100' => 'angle-double-left',
						'\f101' => 'angle-double-right',
						'\f102' => 'angle-double-up',
						'\f103' => 'angle-double-down',
						'\f104' => 'angle-left',
						'\f105' => 'angle-right',
						'\f106' => 'angle-up',
						'\f107' => 'angle-down',
						'\f108' => 'desktop',
						'\f109' => 'laptop',
						'\f10a' => 'tablet',
						'\f10b' => 'mobile',
						'\f10c' => 'circle-o',
						'\f10d' => 'quote-left',
						'\f10e' => 'quote-right',
						'\f110' => 'spinner',
						'\f111' => 'circle',
						'\f112' => 'reply',
						'\f113' => 'github-alt',
						'\f114' => 'folder-o',
						'\f115' => 'folder-open-o',
						'\f118' => 'smile-o',
						'\f119' => 'frown-o',
						'\f11a' => 'meh-o',
						'\f11b' => 'gamepad',
						'\f11c' => 'keyboard-o',
						'\f11d' => 'flag-o',
						'\f11e' => 'flag-checkered',
						'\f120' => 'terminal',
						'\f121' => 'code',
						'\f122' => 'reply-all',
						'\f123' => 'star-half-o',
						'\f124' => 'location-arrow',
						'\f125' => 'crop',
						'\f126' => 'code-fork',
						'\f127' => 'chain-broken',
						'\f128' => 'question',
						'\f129' => 'info',
						'\f12a' => 'exclamation',
						'\f12b' => 'superscript',
						'\f12c' => 'subscript',
						'\f12d' => 'eraser',
						'\f12e' => 'puzzle-piece',
						'\f130' => 'microphone',
						'\f131' => 'microphone-slash',
						'\f132' => 'shield',
						'\f133' => 'calendar-o',
						'\f134' => 'fire-extinguisher',
						'\f135' => 'rocket',
						'\f136' => 'maxcdn',
						'\f137' => 'chevron-circle-left',
						'\f138' => 'chevron-circle-right',
						'\f139' => 'chevron-circle-up',
						'\f13a' => 'chevron-circle-down',
						'\f13b' => 'html5',
						'\f13c' => 'css3',
						'\f13d' => 'anchor',
						'\f13e' => 'unlock-alt',
						'\f140' => 'bullseye',
						'\f141' => 'ellipsis-h',
						'\f142' => 'ellipsis-v',
						'\f143' => 'rss-square',
						'\f144' => 'play-circle',
						'\f145' => 'ticket',
						'\f146' => 'minus-square',
						'\f147' => 'minus-square-o',
						'\f148' => 'level-up',
						'\f149' => 'level-down',
						'\f14a' => 'check-square',
						'\f14b' => 'pencil-square',
						'\f14c' => 'external-link-square',
						'\f14d' => 'share-square',
						'\f14e' => 'compass',
						'\f150' => 'caret-square-o-down',
						'\f151' => 'caret-square-o-up',
						'\f152' => 'caret-square-o-right',
						'\f153' => 'eur',
						'\f154' => 'gbp',
						'\f155' => 'usd',
						'\f156' => 'inr',
						'\f157' => 'jpy',
						'\f158' => 'rub',
						'\f159' => 'krw',
						'\f15a' => 'btc',
						'\f15b' => 'file',
						'\f15c' => 'file-text',
						'\f15d' => 'sort-alpha-asc',
						'\f15e' => 'sort-alpha-desc',
						'\f160' => 'sort-amount-asc',
						'\f161' => 'sort-amount-desc',
						'\f162' => 'sort-numeric-asc',
						'\f163' => 'sort-numeric-desc',
						'\f164' => 'thumbs-up',
						'\f165' => 'thumbs-down',
						'\f166' => 'youtube-square',
						'\f167' => 'youtube',
						'\f168' => 'xing',
						'\f169' => 'xing-square',
						'\f16a' => 'youtube-play',
						'\f16b' => 'dropbox',
						'\f16c' => 'stack-overflow',
						'\f16d' => 'instagram',
						'\f16e' => 'flickr',
						'\f170' => 'adn',
						'\f171' => 'bitbucket',
						'\f172' => 'bitbucket-square',
						'\f173' => 'tumblr',
						'\f174' => 'tumblr-square',
						'\f175' => 'long-arrow-down',
						'\f176' => 'long-arrow-up',
						'\f177' => 'long-arrow-left',
						'\f178' => 'long-arrow-right',
						'\f179' => 'apple',
						'\f17a' => 'windows',
						'\f17b' => 'android',
						'\f17c' => 'linux',
						'\f17d' => 'dribbble',
						'\f17e' => 'skype',
						'\f180' => 'foursquare',
						'\f181' => 'trello',
						'\f182' => 'female',
						'\f183' => 'male',
						'\f184' => 'gratipay',
						'\f185' => 'sun-o',
						'\f186' => 'moon-o',
						'\f187' => 'archive',
						'\f188' => 'bug',
						'\f189' => 'vk',
						'\f18a' => 'weibo',
						'\f18b' => 'renren',
						'\f18c' => 'pagelines',
						'\f18d' => 'stack-exchange',
						'\f18e' => 'arrow-circle-o-right',
						'\f190' => 'arrow-circle-o-left',
						'\f191' => 'caret-square-o-left',
						'\f192' => 'dot-circle-o',
						'\f193' => 'wheelchair',
						'\f194' => 'vimeo-square',
						'\f195' => 'try',
						'\f196' => 'plus-square-o',
						'\f197' => 'space-shuttle',
						'\f198' => 'slack',
						'\f199' => 'envelope-square',
						'\f19a' => 'wordpress',
						'\f19b' => 'openid',
						'\f19c' => 'university',
						'\f19d' => 'graduation-cap',
						'\f19e' => 'yahoo',
						'\f1a0' => 'google',
						'\f1a1' => 'reddit',
						'\f1a2' => 'reddit-square',
						'\f1a3' => 'stumbleupon-circle',
						'\f1a4' => 'stumbleupon',
						'\f1a5' => 'delicious',
						'\f1a6' => 'digg',
						'\f1a7' => 'pied-piper-pp',
						'\f1a8' => 'pied-piper-alt',
						'\f1a9' => 'drupal',
						'\f1aa' => 'joomla',
						'\f1ab' => 'language',
						'\f1ac' => 'fax',
						'\f1ad' => 'building',
						'\f1ae' => 'child',
						'\f1b0' => 'paw',
						'\f1b1' => 'spoon',
						'\f1b2' => 'cube',
						'\f1b3' => 'cubes',
						'\f1b4' => 'behance',
						'\f1b5' => 'behance-square',
						'\f1b6' => 'steam',
						'\f1b7' => 'steam-square',
						'\f1b8' => 'recycle',
						'\f1b9' => 'car',
						'\f1ba' => 'taxi',
						'\f1bb' => 'tree',
						'\f1bc' => 'spotify',
						'\f1bd' => 'deviantart',
						'\f1be' => 'soundcloud',
						'\f1c0' => 'database',
						'\f1c1' => 'file-pdf-o',
						'\f1c2' => 'file-word-o',
						'\f1c3' => 'file-excel-o',
						'\f1c4' => 'file-powerpoint-o',
						'\f1c5' => 'file-image-o',
						'\f1c6' => 'file-archive-o',
						'\f1c7' => 'file-audio-o',
						'\f1c8' => 'file-video-o',
						'\f1c9' => 'file-code-o',
						'\f1ca' => 'vine',
						'\f1cb' => 'codepen',
						'\f1cc' => 'jsfiddle',
						'\f1cd' => 'life-ring',
						'\f1ce' => 'circle-o-notch',
						'\f1d0' => 'rebel',
						'\f1d1' => 'empire',
						'\f1d2' => 'git-square',
						'\f1d3' => 'git',
						'\f1d4' => 'hacker-news',
						'\f1d5' => 'tencent-weibo',
						'\f1d6' => 'qq',
						'\f1d7' => 'weixin',
						'\f1d8' => 'paper-plane',
						'\f1d9' => 'paper-plane-o',
						'\f1da' => 'history',
						'\f1db' => 'circle-thin',
						'\f1dc' => 'header',
						'\f1dd' => 'paragraph',
						'\f1de' => 'sliders',
						'\f1e0' => 'share-alt',
						'\f1e1' => 'share-alt-square',
						'\f1e2' => 'bomb',
						'\f1e3' => 'futbol-o',
						'\f1e4' => 'tty',
						'\f1e5' => 'binoculars',
						'\f1e6' => 'plug',
						'\f1e7' => 'slideshare',
						'\f1e8' => 'twitch',
						'\f1e9' => 'yelp',
						'\f1ea' => 'newspaper-o',
						'\f1eb' => 'wifi',
						'\f1ec' => 'calculator',
						'\f1ed' => 'paypal',
						'\f1ee' => 'google-wallet',
						'\f1f0' => 'cc-visa',
						'\f1f1' => 'cc-mastercard',
						'\f1f2' => 'cc-discover',
						'\f1f3' => 'cc-amex',
						'\f1f4' => 'cc-paypal',
						'\f1f5' => 'cc-stripe',
						'\f1f6' => 'bell-slash',
						'\f1f7' => 'bell-slash-o',
						'\f1f8' => 'trash',
						'\f1f9' => 'copyright',
						'\f1fa' => 'at',
						'\f1fb' => 'eyedropper',
						'\f1fc' => 'paint-brush',
						'\f1fd' => 'birthday-cake',
						'\f1fe' => 'area-chart',
						'\f200' => 'pie-chart',
						'\f201' => 'line-chart',
						'\f202' => 'lastfm',
						'\f203' => 'lastfm-square',
						'\f204' => 'toggle-off',
						'\f205' => 'toggle-on',
						'\f206' => 'bicycle',
						'\f207' => 'bus',
						'\f208' => 'ioxhost',
						'\f209' => 'angellist',
						'\f20a' => 'cc',
						'\f20b' => 'ils',
						'\f20c' => 'meanpath',
						'\f20d' => 'buysellads',
						'\f20e' => 'connectdevelop',
						'\f210' => 'dashcube',
						'\f211' => 'forumbee',
						'\f212' => 'leanpub',
						'\f213' => 'sellsy',
						'\f214' => 'shirtsinbulk',
						'\f215' => 'simplybuilt',
						'\f216' => 'skyatlas',
						'\f217' => 'cart-plus',
						'\f218' => 'cart-arrow-down',
						'\f219' => 'diamond',
						'\f21a' => 'ship',
						'\f21b' => 'user-secret',
						'\f21c' => 'motorcycle',
						'\f21d' => 'street-view',
						'\f21e' => 'heartbeat',
						'\f221' => 'venus',
						'\f222' => 'mars',
						'\f223' => 'mercury',
						'\f224' => 'transgender',
						'\f225' => 'transgender-alt',
						'\f226' => 'venus-double',
						'\f227' => 'mars-double',
						'\f228' => 'venus-mars',
						'\f229' => 'mars-stroke',
						'\f22a' => 'mars-stroke-v',
						'\f22b' => 'mars-stroke-h',
						'\f22c' => 'neuter',
						'\f22d' => 'genderless',
						'\f230' => 'facebook-official',
						'\f231' => 'pinterest-p',
						'\f232' => 'whatsapp',
						'\f233' => 'server',
						'\f234' => 'user-plus',
						'\f235' => 'user-times',
						'\f236' => 'bed',
						'\f237' => 'viacoin',
						'\f238' => 'train',
						'\f239' => 'subway',
						'\f23a' => 'medium',
						'\f23b' => 'y-combinator',
						'\f23c' => 'optin-monster',
						'\f23d' => 'opencart',
						'\f23e' => 'expeditedssl',
						'\f240' => 'battery-full',
						'\f241' => 'battery-three-quarters',
						'\f242' => 'battery-half',
						'\f243' => 'battery-quarter',
						'\f244' => 'battery-empty',
						'\f245' => 'mouse-pointer',
						'\f246' => 'i-cursor',
						'\f247' => 'object-group',
						'\f248' => 'object-ungroup',
						'\f249' => 'sticky-note',
						'\f24a' => 'sticky-note-o',
						'\f24b' => 'cc-jcb',
						'\f24c' => 'cc-diners-club',
						'\f24d' => 'clone',
						'\f24e' => 'balance-scale',
						'\f250' => 'hourglass-o',
						'\f251' => 'hourglass-start',
						'\f252' => 'hourglass-half',
						'\f253' => 'hourglass-end',
						'\f254' => 'hourglass',
						'\f255' => 'hand-rock-o',
						'\f256' => 'hand-paper-o',
						'\f257' => 'hand-scissors-o',
						'\f258' => 'hand-lizard-o',
						'\f259' => 'hand-spock-o',
						'\f25a' => 'hand-pointer-o',
						'\f25b' => 'hand-peace-o',
						'\f25c' => 'trademark',
						'\f25d' => 'registered',
						'\f25e' => 'creative-commons',
						'\f260' => 'gg',
						'\f261' => 'gg-circle',
						'\f262' => 'tripadvisor',
						'\f263' => 'odnoklassniki',
						'\f264' => 'odnoklassniki-square',
						'\f265' => 'get-pocket',
						'\f266' => 'wikipedia-w',
						'\f267' => 'safari',
						'\f268' => 'chrome',
						'\f269' => 'firefox',
						'\f26a' => 'opera',
						'\f26b' => 'internet-explorer',
						'\f26c' => 'television',
						'\f26d' => 'contao',
						'\f26e' => '500px',
						'\f270' => 'amazon',
						'\f271' => 'calendar-plus-o',
						'\f272' => 'calendar-minus-o',
						'\f273' => 'calendar-times-o',
						'\f274' => 'calendar-check-o',
						'\f275' => 'industry',
						'\f276' => 'map-pin',
						'\f277' => 'map-signs',
						'\f278' => 'map-o',
						'\f279' => 'map',
						'\f27a' => 'commenting',
						'\f27b' => 'commenting-o',
						'\f27c' => 'houzz',
						'\f27d' => 'vimeo',
						'\f27e' => 'black-tie',
						'\f280' => 'fonticons',
						'\f281' => 'reddit-alien',
						'\f282' => 'edge',
						'\f283' => 'credit-card-alt',
						'\f284' => 'codiepie',
						'\f285' => 'modx',
						'\f286' => 'fort-awesome',
						'\f287' => 'usb',
						'\f288' => 'product-hunt',
						'\f289' => 'mixcloud',
						'\f28a' => 'scribd',
						'\f28b' => 'pause-circle',
						'\f28c' => 'pause-circle-o',
						'\f28d' => 'stop-circle',
						'\f28e' => 'stop-circle-o',
						'\f290' => 'shopping-bag',
						'\f291' => 'shopping-basket',
						'\f292' => 'hashtag',
						'\f293' => 'bluetooth',
						'\f294' => 'bluetooth-b',
						'\f295' => 'percent',
						'\f296' => 'gitlab',
						'\f297' => 'wpbeginner',
						'\f298' => 'wpforms',
						'\f299' => 'envira',
						'\f29a' => 'universal-access',
						'\f29b' => 'wheelchair-alt',
						'\f29c' => 'question-circle-o',
						'\f29d' => 'blind',
						'\f29e' => 'audio-description',
						'\f2a0' => 'volume-control-phone',
						'\f2a1' => 'braille',
						'\f2a2' => 'assistive-listening-systems',
						'\f2a3' => 'american-sign-language-interpreting',
						'\f2a4' => 'deaf',
						'\f2a5' => 'glide',
						'\f2a6' => 'glide-g',
						'\f2a7' => 'sign-language',
						'\f2a8' => 'low-vision',
						'\f2a9' => 'viadeo',
						'\f2aa' => 'viadeo-square',
						'\f2ab' => 'snapchat',
						'\f2ac' => 'snapchat-ghost',
						'\f2ad' => 'snapchat-square',
						'\f2ae' => 'pied-piper',
						'\f2b0' => 'first-order',
						'\f2b1' => 'yoast',
						'\f2b2' => 'themeisle',
						'\f2b3' => 'google-plus-official',
						'\f2b4' => 'font-awesome',
						'\f2b5' => 'handshake-o',
						'\f2b6' => 'envelope-open',
						'\f2b7' => 'envelope-open-o',
						'\f2b8' => 'linode',
						'\f2b9' => 'address-book',
						'\f2ba' => 'address-book-o',
						'\f2bb' => 'address-card',
						'\f2bc' => 'address-card-o',
						'\f2bd' => 'user-circle',
						'\f2be' => 'user-circle-o',
						'\f2c0' => 'user-o',
						'\f2c1' => 'id-badge',
						'\f2c2' => 'id-card',
						'\f2c3' => 'id-card-o',
						'\f2c4' => 'quora',
						'\f2c5' => 'free-code-camp',
						'\f2c6' => 'telegram',
						'\f2c7' => 'thermometer-full',
						'\f2c8' => 'thermometer-three-quarters',
						'\f2c9' => 'thermometer-half',
						'\f2ca' => 'thermometer-quarter',
						'\f2cb' => 'thermometer-empty',
						'\f2cc' => 'shower',
						'\f2cd' => 'bath',
						'\f2ce' => 'podcast',
						'\f2d0' => 'window-maximize',
						'\f2d1' => 'window-minimize',
						'\f2d2' => 'window-restore',
						'\f2d3' => 'window-close',
						'\f2d4' => 'window-close-o',
						'\f2d5' => 'bandcamp',
						'\f2d6' => 'grav',
						'\f2d7' => 'etsy',
						'\f2d8' => 'imdb',
						'\f2d9' => 'ravelry',
						'\f2da' => 'eercast',
						'\f2db' => 'microchip',
						'\f2dc' => 'snowflake-o',
						'\f2dd' => 'superpowers',
						'\f2de' => 'wpexplorer',
						'\f2e0' => 'meetup',
					),
					'Dashicons'   => array(
						'\f100' => 'admin-appearance',
						'\f101' => 'admin-comments',
						'\f102' => 'admin-home',
						'\f104' => 'admin-media',
						'\f105' => 'admin-page',
						'\f106' => 'admin-plugins',
						'\f107' => 'admin-tools',
						'\f108' => 'admin-settings',
						'\f110' => 'admin-users',
						'\f111' => 'admin-generic',
						'\f112' => 'admin-network',
						'\f115' => 'welcome-view-site',
						'\f116' => 'welcome-widgets-menus',
						'\f117' => 'welcome-comments',
						'\f118' => 'welcome-learn-more',
						'\f120' => 'wordpress',
						'\f122' => 'format-quote',
						'\f123' => 'format-aside',
						'\f125' => 'format-chat',
						'\f126' => 'format-video',
						'\f127' => 'format-audio',
						'\f128' => 'format-image',
						'\f130' => 'format-status',
						'\f132' => 'plus',
						'\f133' => 'welcome-add-page',
						'\f134' => 'align-center',
						'\f135' => 'align-left',
						'\f136' => 'align-right',
						'\f138' => 'align-none',
						'\f139' => 'arrow-right',
						'\f140' => 'arrow-down',
						'\f141' => 'arrow-left',
						'\f142' => 'arrow-up',
						'\f145' => 'calendar',
						'\f147' => 'yes',
						'\f148' => 'admin-collapse',
						'\f153' => 'dismiss',
						'\f154' => 'star-empty',
						'\f155' => 'star-filled',
						'\f156' => 'sort',
						'\f157' => 'pressthis',
						'\f158' => 'no',
						'\f159' => 'marker',
						'\f160' => 'lock',
						'\f161' => 'format-gallery',
						'\f163' => 'list-view',
						'\f165' => 'image-crop',
						'\f166' => 'image-rotate-left',
						'\f167' => 'image-rotate-right',
						'\f168' => 'image-flip-vertical',
						'\f169' => 'image-flip-horizontal',
						'\f171' => 'undo',
						'\f172' => 'redo',
						'\f173' => 'post-status',
						'\f174' => 'cart',
						'\f175' => 'feedback',
						'\f176' => 'cloud',
						'\f177' => 'visibility',
						'\f178' => 'vault',
						'\f179' => 'search',
						'\f180' => 'screenoptions',
						'\f181' => 'slides',
						'\f183' => 'analytics',
						'\f184' => 'chart-pie',
						'\f185' => 'chart-bar',
						'\f200' => 'editor-bold',
						'\f201' => 'editor-italic',
						'\f203' => 'editor-ul',
						'\f204' => 'editor-ol',
						'\f205' => 'editor-quote',
						'\f206' => 'editor-alignleft',
						'\f207' => 'editor-aligncenter',
						'\f208' => 'editor-alignright',
						'\f209' => 'editor-insertmore',
						'\f210' => 'editor-spellcheck',
						'\f212' => 'editor-kitchensink',
						'\f213' => 'editor-underline',
						'\f214' => 'editor-justify',
						'\f215' => 'editor-textcolor',
						'\f216' => 'editor-paste-word',
						'\f217' => 'editor-paste-text',
						'\f218' => 'editor-removeformatting',
						'\f219' => 'editor-video',
						'\f220' => 'editor-customchar',
						'\f221' => 'editor-outdent',
						'\f222' => 'editor-indent',
						'\f223' => 'editor-help',
						'\f224' => 'editor-strikethrough',
						'\f225' => 'editor-unlink',
						'\f226' => 'dashboard',
						'\f227' => 'flag',
						'\f229' => 'leftright',
						'\f230' => 'location',
						'\f231' => 'location-alt',
						'\f232' => 'images-alt',
						'\f233' => 'images-alt2',
						'\f234' => 'video-alt',
						'\f235' => 'video-alt2',
						'\f236' => 'video-alt3',
						'\f237' => 'share1',
						'\f238' => 'chart-line',
						'\f239' => 'chart-area',
						'\f240' => 'share-alt',
						'\f242' => 'share-alt2',
						'\f301' => 'twitter',
						'\f303' => 'rss',
						'\f304' => 'facebook',
						'\f305' => 'facebook-alt',
						'\f306' => 'camera',
						'\f307' => 'groups',
						'\f308' => 'hammer',
						'\f309' => 'art',
						'\f310' => 'migrate',
						'\f311' => 'performance',
						'\f312' => 'products',
						'\f313' => 'awards',
						'\f314' => 'forms',
						'\f316' => 'download',
						'\f317' => 'upload',
						'\f318' => 'category',
						'\f319' => 'admin-site',
						'\f320' => 'editor-rtl',
						'\f321' => 'backup',
						'\f322' => 'portfolio',
						'\f323' => 'tag',
						'\f324' => 'wordpress-alt',
						'\f325' => 'networking',
						'\f326' => 'translation',
						'\f328' => 'smiley',
						'\f330' => 'book',
						'\f331' => 'book-alt',
						'\f332' => 'shield',
						'\f333' => 'menu',
						'\f334' => 'shield-alt',
						'\f335' => 'no-alt',
						'\f336' => 'id',
						'\f337' => 'id-alt',
						'\f338' => 'businessman',
						'\f339' => 'lightbulb',
						'\f340' => 'arrow-left-alt',
						'\f341' => 'arrow-left-alt2',
						'\f342' => 'arrow-up-alt',
						'\f343' => 'arrow-up-alt2',
						'\f344' => 'arrow-right-alt',
						'\f345' => 'arrow-right-alt2',
						'\f346' => 'arrow-down-alt',
						'\f347' => 'arrow-down-alt2',
						'\f348' => 'info',
						'\f459' => 'star-half',
						'\f460' => 'minus',
						'\f462' => 'googleplus',
						'\f463' => 'update',
						'\f464' => 'edit',
						'\f465' => 'email',
						'\f466' => 'email-alt',
						'\f468' => 'sos',
						'\f469' => 'clock',
						'\f470' => 'smartphone',
						'\f471' => 'tablet',
						'\f472' => 'desktop',
						'\f473' => 'testimonial',
						'\f474' => 'editor-break',
						'\f475' => 'editor-code',
						'\f476' => 'editor-paragraph',
						'\f478' => 'text',
						'\f479' => 'tagcloud',
						'\f480' => 'archive',
						'\f481' => 'clipboard',
						'\f482' => 'microphone',
						'\f483' => 'universal-access',
						'\f484' => 'nametag',
						'\f486' => 'tickets',
						'\f487' => 'heart',
						'\f488' => 'megaphone',
						'\f489' => 'schedule',
						'\f490' => 'media-video',
						'\f491' => 'media-text',
						'\f492' => 'playlist-audio',
						'\f493' => 'playlist-video',
						'\f495' => 'media-spreadsheet',
						'\f496' => 'media-interactive',
						'\f497' => 'media-document',
						'\f498' => 'media-default',
						'\f499' => 'media-code',
						'\f500' => 'media-audio',
						'\f501' => 'media-archive',
						'\f502' => 'plus-alt',
						'\f503' => 'randomize',
						'\f504' => 'external',
						'\f506' => 'editor-contract',
						'\f507' => 'universal-access-alt',
						'\f508' => 'calendar-alt',
						'\f509' => 'grid-view',
						'\f510' => 'index-card',
						'\f511' => 'carrot',
						'\f512' => 'building',
						'\f513' => 'store',
						'\f514' => 'album',
						'\f515' => 'controls-repeat',
						'\f516' => 'controls-skipback',
						'\f517' => 'controls-skipforward',
						'\f518' => 'controls-back',
						'\f519' => 'controls-forward',
						'\f520' => 'controls-volumeoff',
						'\f521' => 'controls-volumeon',
						'\f522' => 'controls-play',
						'\f523' => 'controls-pause',
						'\f524' => 'tickets-alt',
						'\f525' => 'phone',
						'\f526' => 'money',
						'\f527' => 'palmtree',
						'\f528' => 'unlock',
						'\f529' => 'thumbs-up',
						'\f530' => 'hidden',
						'\f531' => 'image-rotate',
						'\f533' => 'image-filter',
						'\f534' => 'warning',
						'\f535' => 'editor-table',
						'\f536' => 'filter',
						'\f537' => 'sticky',
						'\f538' => 'layout',
						'\f540' => 'admin-customizer',
						'\f541' => 'admin-multisite',
						'\f542' => 'thumbs-down',
						'\f543' => 'plus-alt2',
						'\f545' => 'move',
						'\f546' => 'paperclip',
						'\f547' => 'laptop',
					),
				),
			);


		/**
		 * Singleton implementation.
		 *
		 * @return YIT_Icons
		 */
		public static function instance() {
			return ! is_null( self::$instance ) ? self::$instance : self::$instance = new self();
		}

		/**
		 * Deprecated singleton implementation.
		 * Kept for backward compatibility.
		 *
		 * @return YIT_Icons
		 * @deprecated 3.5 | use YIT_Icons::get_instance() instead.
		 */
		public static function get_instance() {
			return self::instance();
		}

		/**
		 * YIT_Icons constructor.
		 */
		private function __construct() {
			add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_scripts' ), 99 );
			add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ), 99 );
		}

		/**
		 * __get function.
		 *
		 * @param string $key The key.
		 *
		 * @return mixed
		 */
		public function __get( $key ) {
			$value = isset( $this->data[ $key ] ) ? $this->data[ $key ] : false;

			return $value;
		}

		/**
		 * __isset function.
		 *
		 * @param string $key The key.
		 *
		 * @return bool
		 */
		public function __isset( $key ) {
			return isset( $this->data[ $key ] );
		}

		/**
		 * Get the icons.
		 *
		 * @param string $filter_suffix The filter suffix.
		 *
		 * @return false|mixed|void
		 */
		public function get_icons( $filter_suffix = '' ) {
			$icons = $this->icons;
			if ( ! empty( $filter_suffix ) ) {
				$icons = apply_filters( 'yith_plugin_fw_icons_field_icons_' . sanitize_key( $filter_suffix ), $icons );
			}

			return $icons;
		}

		/**
		 * Get the icon data
		 *
		 * @param string $icon_string   The icon string.
		 * @param string $filter_suffix The filter suffix.
		 *
		 * @return string
		 */
		public function get_icon_data( $icon_string, $filter_suffix = '' ) {
			return yith_plugin_fw_html_data_to_string( $this->get_icon_data_array( $icon_string, $filter_suffix ) );
		}

		/**
		 * Get the icon data array
		 *
		 * @param string $icon_string   The icon string.
		 * @param string $filter_suffix The filter suffix.
		 *
		 * @return array
		 */
		public function get_icon_data_array( $icon_string, $filter_suffix = '' ) {
			$icon_data = array();
			if ( $icon_string ) {
				$icon_array = explode( ':', $icon_string );

				if ( count( $icon_array ) < 2 ) {
					return $icon_data;
				}

				$font_name = $icon_array[0];
				$icon_name = $icon_array[1];

				$icons = $this->get_icons( $filter_suffix );
				if ( array_key_exists( $font_name, $icons ) ) {
					$icon_key  = array_search( $icon_name, $icons[ $font_name ], true );
					$icon_code = '&#x' . str_replace( '\\', '', $icon_key );
					$icon_data = array(
						'font' => $font_name,
						'name' => $icon_name,
						'key'  => $icon_key,
						'icon' => $icon_code,
					);
				}
			}

			return $icon_data;
		}

		/**
		 * Retrieves the font awesome array
		 * the first time retrieves the array by the Font Awesome CSS
		 * [utility method]
		 *
		 * @return array
		 */
		private function get_font_awesome_array() {
			$font_awesome_list    = get_option( 'yit_font_awesome_list', array() );
			$font_awesome_version = $this->font_awesome_version;

			$font_awesome_array = array();

			if ( ! empty( $font_awesome_list[ $font_awesome_version ] ) ) {
				$font_awesome_array = $font_awesome_list[ $font_awesome_version ];
			} else {
				// Retrieve the array by the CSS file.
				$font_awesome_uri = "https://maxcdn.bootstrapcdn.com/font-awesome/{$font_awesome_version}/css/font-awesome.min.css";
				$pattern          = '/\.(fa-(?:\w+(?:-)?)+):before{content:"\\\\(....)"}/';

				$response = wp_remote_get( $font_awesome_uri );

				if ( ! is_wp_error( $response ) && 200 === absint( $response['response']['code'] ) && 'OK' === $response['response']['message'] ) {
					$body = $response['body'];

					preg_match_all( $pattern, $body, $matches, PREG_SET_ORDER );
					foreach ( $matches as $match ) {
						$font_awesome_array[ $match[2] ] = $match[1];
					}
					ksort( $font_awesome_array );

					$font_awesome_list[ $font_awesome_version ] = $font_awesome_array;
					update_option( 'yit_font_awesome_list', $font_awesome_list );
				}
			}

			return $font_awesome_array;
		}

		/**
		 * Retrieves the Dashicons array
		 * the first time retrieves the array by the Dashicons CSS
		 * [utility method]
		 *
		 * @return array
		 */
		private function get_dashicons_array() {
			$dashicons_list = get_option( 'yit_dashicons_list', array() );

			$dashicons_array = array();
			if ( ! empty( $dashicons_list ) ) {
				$dashicons_array = $dashicons_list;
			} else {
				// Retrieve the array by the CSS file.
				$uri     = 'https://s.w.org/wp-includes/css/dashicons.min.css';
				$pattern = '/\.dashicons-((?:\w+(?:-)?)+):before{content:"\\\\(....)"/';
				$pattern = '/\.dashicons-((?:\w+(?:-)?)+):before.............../';

				$response = wp_remote_get( $uri );

				if ( ! is_wp_error( $response ) && 200 === absint( $response['response']['code'] ) && 'OK' === $response['response']['message'] ) {
					$body = $response['body'];

					preg_match_all( $pattern, $body, $matches, PREG_SET_ORDER );

					foreach ( $matches as $match ) {
						$code = str_replace( '.dashicons-' . $match[1] . ':before{content:"\\', '', $match[0] );
						if ( 4 === strlen( $code ) ) {
							$dashicons_array[ $code ] = $match[1];
						}
					}
					ksort( $dashicons_array );
				}
			}

			return $dashicons_array;
		}

		/**
		 * Enqueue Scripts
		 */
		public function enqueue_scripts() {
			wp_register_style( 'font-awesome', YIT_CORE_PLUGIN_URL . '/assets/fonts/font-awesome/font-awesome.min.css', array(), $this->font_awesome_version );

			wp_add_inline_style( 'font-awesome', $this->get_inline_style( 'font-awesome' ) );

			wp_add_inline_style( 'dashicons', $this->get_inline_style( 'dashicons' ) );
		}

		/**
		 * Return the icon HTML from icon_string passed
		 *
		 * @param string|array $icon The icon.
		 * @param array        $args Array of arguments (such as html_tag, class, style, filter_suffix).
		 *
		 * @return string
		 */
		public function get_icon( $icon = '', $args = array() ) {
			$icon      = is_array( $icon ) && isset( $icon['icon'] ) ? $icon['icon'] : $icon;
			$icon_html = '';
			if ( $icon ) {
				$default_args = array(
					'html_tag'      => 'span',
					'class'         => '',
					'style'         => '',
					'filter_suffix' => '',
				);
				$args         = wp_parse_args( $args, $default_args );

				// back-ward compatibility: 'filter_icons' argument is deprecated; use 'filter_suffix' instead!
				if ( ! empty( $args['filter_icons'] ) && ! $args['filter_suffix'] ) {
					$args['filter_suffix'] = $args['filter_icons'];
				}

				$html_tag      = $args['html_tag'];
				$class         = $args['class'];
				$style         = $args['style'];
				$filter_suffix = $args['filter_suffix'];

				$icon_data = $this->get_icon_data( $icon, $filter_suffix );

				if ( $icon_data ) {
					$icon_html = "<$html_tag class=\"$class\" style=\"$style\" $icon_data></$html_tag>";
				}
			}

			return $icon_html;
		}

		/**
		 * Get inline style.
		 *
		 * @param string $handle The handle.
		 *
		 * @return string
		 */
		public function get_inline_style( $handle ) {
			$css = '';
			switch ( $handle ) {
				case 'font-awesome':
					$css = '[data-font="FontAwesome"]:before {font-family: \'FontAwesome\' !important;content: attr(data-icon) !important;speak: none !important;font-weight: normal !important;font-variant: normal !important;text-transform: none !important;line-height: 1 !important;font-style: normal !important;-webkit-font-smoothing: antialiased !important;-moz-osx-font-smoothing: grayscale !important;}';
					break;
				case 'dashicons':
					$css = '[data-font="Dashicons"]:before {font-family: \'Dashicons\' !important;content: attr(data-icon) !important;speak: none !important;font-weight: normal !important;font-variant: normal !important;text-transform: none !important;line-height: 1 !important;font-style: normal !important;-webkit-font-smoothing: antialiased !important;-moz-osx-font-smoothing: grayscale !important;}';
			}

			return $css;
		}

		/**
		 * Get inline style
		 * Deprecated for typo
		 *
		 * @param string $handle The handle.
		 *
		 * @return string
		 * @deprecated 3.5 | use YIT_Icons::get_inline_style()
		 */
		public function get_inline_scripts( $handle ) {
			return $this->get_inline_style( $handle );
		}

	}
}
if ( ! function_exists( 'yit_icons' ) ) {
	/**
	 * Return instance of YIT_Icons class.
	 *
	 * @return YIT_Icons
	 */
	function yit_icons() {
		return YIT_Icons::instance();
	}
}

yit_icons();
