lightspeeddevelopment / lsx

inc/lazyload.php

Spacing +57 added lines, -57 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) return;
+if ( ! defined('ABSPATH')) return;
 
 /*
  * LSX Lazy Load Images Class
@@ -25,143 +25,143 @@ 
 	protected static $noscripts   = array();
 
 	static function init() {
-		if ( is_admin() )
+		if (is_admin())
 			return;
 
-		if ( get_theme_mod( 'lsx_lazyload_status', '1' ) === false ) {
+		if (get_theme_mod('lsx_lazyload_status', '1') === false) {
 			self::$enabled = false;
 			return;
 		}
 
-		if ( ! apply_filters( 'lsx_lazyload_is_enabled', true ) ) {
+		if ( ! apply_filters('lsx_lazyload_is_enabled', true)) {
 			self::$enabled = false;
 			return;
 		}
 
-		add_action( 'wp_enqueue_scripts', array( __CLASS__, 'add_scripts' ) );
-		add_action( 'wp_head', array( __CLASS__, 'setup_filters' ), 9999 );
-		add_filter( 'wp_kses_allowed_html', array( __CLASS__, 'kses_allowed_html' ), 10, 2 );
-		add_filter( 'kses_allowed_protocols', array( __CLASS__, 'kses_allowed_protocols' ) );
+		add_action('wp_enqueue_scripts', array(__CLASS__, 'add_scripts'));
+		add_action('wp_head', array(__CLASS__, 'setup_filters'), 9999);
+		add_filter('wp_kses_allowed_html', array(__CLASS__, 'kses_allowed_html'), 10, 2);
+		add_filter('kses_allowed_protocols', array(__CLASS__, 'kses_allowed_protocols'));
 	}
 
 	static function setup_filters() {
 		// WordPress
-		add_filter( 'the_content', array( __CLASS__, 'filter_images' ), 200 );
-		add_filter( 'widget_text', array( __CLASS__, 'filter_images' ), 200 );
-		add_filter( 'post_thumbnail_html', array( __CLASS__, 'filter_images' ), 200 );
-		add_filter( 'get_avatar', array( __CLASS__, 'filter_images' ), 200 );
+		add_filter('the_content', array(__CLASS__, 'filter_images'), 200);
+		add_filter('widget_text', array(__CLASS__, 'filter_images'), 200);
+		add_filter('post_thumbnail_html', array(__CLASS__, 'filter_images'), 200);
+		add_filter('get_avatar', array(__CLASS__, 'filter_images'), 200);
 		
 		// LSX
-		add_filter( 'lsx_lazyload_filter_images', array( __CLASS__, 'filter_images' ), 200 );
+		add_filter('lsx_lazyload_filter_images', array(__CLASS__, 'filter_images'), 200);
 
 		// Envira Gallery
-		add_filter( 'envira_gallery_output_image', array( __CLASS__, 'filter_images' ), 200 );
+		add_filter('envira_gallery_output_image', array(__CLASS__, 'filter_images'), 200);
 	}
 
 	static function add_scripts() {
-		wp_enqueue_script( 'lazysizes', get_template_directory_uri() .'/js/vendor/lazysizes.min.js', array( 'jquery' ), null, true );
+		wp_enqueue_script('lazysizes', get_template_directory_uri() . '/js/vendor/lazysizes.min.js', array('jquery'), null, true);
 		// Plugin that enables use lazysizes in brackground images
 		//wp_enqueue_script( 'lazysizes', get_template_directory_uri() .'/js/vendor/ls.unveilhooks.min.js', array( 'jquery', 'lazysizes' ), null, true );
 	}
 
-	static function filter_images( $content ) {
-		if ( ! self::is_enabled() ) {
+	static function filter_images($content) {
+		if ( ! self::is_enabled()) {
 			return $content;
 		}
 
-		$http_user_agent = sanitize_text_field( wp_unslash( $_SERVER['HTTP_USER_AGENT'] ) );
-		$http_user_agent = ! empty( $http_user_agent ) ? $http_user_agent : '';
+		$http_user_agent = sanitize_text_field(wp_unslash($_SERVER['HTTP_USER_AGENT']));
+		$http_user_agent = ! empty($http_user_agent) ? $http_user_agent : '';
 
-		if ( is_feed()
+		if (is_feed()
 			|| is_preview()
-			|| intval( get_query_var( 'print' ) ) == 1
-			|| intval( get_query_var( 'printpage' ) ) == 1
-			|| strpos( $http_user_agent, 'Opera Mini' ) !== false
+			|| intval(get_query_var('print')) == 1
+			|| intval(get_query_var('printpage')) == 1
+			|| strpos($http_user_agent, 'Opera Mini') !== false
 		) {
 			return $content;
 		}
 
 		$skip_images_regex = '/class=".*(lazyload|disable-lazyload).*"/';
-		$placeholder_image = apply_filters( 'lsx_lazyload_placeholder_image', 'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==' );
+		$placeholder_image = apply_filters('lsx_lazyload_placeholder_image', 'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==');
 
 		$matches = array();
 		$search = array();
 		$replace = array();
 		
-		$content = preg_replace_callback( '~<noscript.+?</noscript>~s', 'self::noscripts_remove', $content );
-		preg_match_all( '/<img[^>]*>/', $content, $matches );
+		$content = preg_replace_callback('~<noscript.+?</noscript>~s', 'self::noscripts_remove', $content);
+		preg_match_all('/<img[^>]*>/', $content, $matches);
 
-		foreach ( $matches[0] as $img_html ) {
-			if ( ! ( preg_match( $skip_images_regex, $img_html ) ) ) {
+		foreach ($matches[0] as $img_html) {
+			if ( ! (preg_match($skip_images_regex, $img_html))) {
 				$add_class = false;
 
-				if ( ! preg_match( '/src=[\'"]([^\'"]+)[\'"]/', $img_html ) && preg_match( '/srcset=[\'"]([^\'"]+)[\'"]/', $img_html ) ) {
-					$replace_html = preg_replace( '/<img(.*?)srcset=/i', '<img$1srcset="' . $placeholder_image . '" data-srcset=', $img_html );
+				if ( ! preg_match('/src=[\'"]([^\'"]+)[\'"]/', $img_html) && preg_match('/srcset=[\'"]([^\'"]+)[\'"]/', $img_html)) {
+					$replace_html = preg_replace('/<img(.*?)srcset=/i', '<img$1srcset="' . $placeholder_image . '" data-srcset=', $img_html);
 
-					if ( preg_match( '/sizes=[\'"]([^\'"]+)[\'"]/', $img_html ) ) {
-						$replace_html = preg_replace( '/sizes=/i', 'data-sizes=', $replace_html );
+					if (preg_match('/sizes=[\'"]([^\'"]+)[\'"]/', $img_html)) {
+						$replace_html = preg_replace('/sizes=/i', 'data-sizes=', $replace_html);
 					} else {
-						$replace_html = preg_replace( '/data-srcset=/i', 'data-sizes="auto" data-srcset=', $replace_html );
+						$replace_html = preg_replace('/data-srcset=/i', 'data-sizes="auto" data-srcset=', $replace_html);
 					}
 
 					$add_class = true;
-				} elseif ( preg_match( '/src=[\'"]([^\'"]+)[\'"]/', $img_html ) ) {
-					$replace_html = preg_replace( '/<img(.*?)src=/i', '<img$1src="' . $placeholder_image . '" data-src=', $img_html );
+				} elseif (preg_match('/src=[\'"]([^\'"]+)[\'"]/', $img_html)) {
+					$replace_html = preg_replace('/<img(.*?)src=/i', '<img$1src="' . $placeholder_image . '" data-src=', $img_html);
 
-					if ( preg_match( '/srcset=[\'"]([^\'"]+)[\'"]/', $img_html ) ) {
-						if ( preg_match( '/sizes=[\'"]([^\'"]+)[\'"]/', $img_html ) ) {
-							$replace_html = preg_replace( '/srcset=/i', 'data-srcset=', $replace_html );
-							$replace_html = preg_replace( '/sizes=/i', 'data-sizes=', $replace_html );
+					if (preg_match('/srcset=[\'"]([^\'"]+)[\'"]/', $img_html)) {
+						if (preg_match('/sizes=[\'"]([^\'"]+)[\'"]/', $img_html)) {
+							$replace_html = preg_replace('/srcset=/i', 'data-srcset=', $replace_html);
+							$replace_html = preg_replace('/sizes=/i', 'data-sizes=', $replace_html);
 						} else {
-							$replace_html = preg_replace( '/srcset=/i', 'data-sizes="auto" data-srcset=', $replace_html );
+							$replace_html = preg_replace('/srcset=/i', 'data-sizes="auto" data-srcset=', $replace_html);
 						}
 					}
 
 					$add_class = true;
 				}
 
-				if ( $add_class ) {
-					$replace_html = self::add_class( $replace_html, 'lazyload' );
+				if ($add_class) {
+					$replace_html = self::add_class($replace_html, 'lazyload');
 					$replace_html .= '<noscript>' . $img_html . '</noscript>';
 					
-					array_push( $search, $img_html );
-					array_push( $replace, $replace_html );
+					array_push($search, $img_html);
+					array_push($replace, $replace_html);
 				}
 			}
 		}
 
-		$content = str_replace( $search, $replace, $content );
-		$content = preg_replace_callback( '~' . chr(20) . '([0-9]+)' . chr(20) . '~', 'self::noscripts_restore', $content );
+		$content = str_replace($search, $replace, $content);
+		$content = preg_replace_callback('~' . chr(20) . '([0-9]+)' . chr(20) . '~', 'self::noscripts_restore', $content);
 		return $content;
 	}
 
-	static function noscripts_remove( $match ) {
+	static function noscripts_remove($match) {
 		self::$noscript_id++;
 		self::$noscripts[self::$noscript_id] = $match[0];
 		return chr(20) . self::$noscript_id . chr(20);
 	}
 
-	static function noscripts_restore( $match ) {
+	static function noscripts_restore($match) {
 		return self::$noscripts[(int) $match[1]];
 	}
 
-	static function add_class( $html_string = '', $new_class ) {
+	static function add_class($html_string = '', $new_class) {
 		$pattern = '/class=[\'"]([^\'"]*)[\'"]/';
 
-		if ( preg_match( $pattern, $html_string, $matches ) ) {
-			$defined_classes = explode( ' ', $matches[1] );
+		if (preg_match($pattern, $html_string, $matches)) {
+			$defined_classes = explode(' ', $matches[1]);
 
-			if ( ! in_array( $new_class, $defined_classes ) ) {
+			if ( ! in_array($new_class, $defined_classes)) {
 				$defined_classes[] = $new_class;
 
 				$html_string = str_replace(
 					$matches[0],
-					sprintf( 'class="%s"', implode( ' ', $defined_classes ) ),
+					sprintf('class="%s"', implode(' ', $defined_classes)),
 					$html_string
 				);
 			}
 		} else {
-			$html_string = preg_replace( '/(\<.+\s)/', sprintf( '$1class="%s" ', $new_class ), $html_string );
+			$html_string = preg_replace('/(\<.+\s)/', sprintf('$1class="%s" ', $new_class), $html_string);
 		}
 
 		return $html_string;
@@ -171,7 +171,7 @@ 
 		return self::$enabled;
 	}
 
-	static function kses_allowed_html( $allowedtags, $context ) {
+	static function kses_allowed_html($allowedtags, $context) {
 		$allowedtags['noscript'] = array();
 		
 		$allowedtags['img']['data-src'] = true;
@@ -181,10 +181,10 @@ 
 		return $allowedtags;
 	}
 
-	static function kses_allowed_protocols( $allowedprotocols ) {
+	static function kses_allowed_protocols($allowedprotocols) {
 		$allowedprotocols[] = 'data';
 		return $allowedprotocols;
 	}
 }
 
-add_action( 'init', array( 'LSX_LazyLoadImages', 'init' ) );
+add_action('init', array('LSX_LazyLoadImages', 'init'));