File "core.php"
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Charset: utf-8
<?php
require __DIR__ . '/vendor/autoload.php';
class Meow_wr3x_Core {
public $admin = null;
public function __construct( $admin ) {
$this->admin = $admin;
add_action( 'wp_enqueue_scripts', array( $this, 'wp_enqueue_scripts' ) );
add_action( 'admin_enqueue_scripts', array( $this, 'wp_enqueue_scripts' ) );
add_filter( 'wp_generate_attachment_metadata', array( $this, 'wp_generate_attachment_metadata' ) );
add_action( 'delete_attachment', array( $this, 'delete_attachment' ) );
add_filter( 'generate_rewrite_rules', array( 'Meow_wr3x_Admin', 'generate_rewrite_rules' ) );
add_filter( 'retina_validate_src', array( $this, 'validate_src' ) );
add_filter( 'wp_calculate_image_srcset', array( $this, 'calculate_image_srcset' ), 1000, 3 );
add_action( 'init', array( $this, 'init' ) );
include( __DIR__ . '/api.php' );
if ( get_option( 'wr3x_big_image_size_threshold', false ) ) {
add_filter( 'big_image_size_threshold', array( $this, 'big_image_size_threshold' ) );
}
// In Admin
if ( is_admin() ) {
include( __DIR__ . '/ajax.php' );
new Meow_wr3x_Ajax( $this );
if ( !get_option( "wr3x_hide_retina_dashboard" ) ) {
include( __DIR__ . '/dashboard.php' );
new Meow_wr3x_Dashboard( $this );
}
if ( !get_option( "wr3x_hide_retina_column" ) ) {
include( __DIR__ . '/media-library.php' );
new Meow_wr3x_MediaLibrary( $this );
}
}
}
function big_image_size_threshold() {
return false;
}
function is_rest() {
if ( empty( $_SERVER[ 'REQUEST_URI' ] ) )
return false;
$rest_prefix = trailingslashit( rest_get_url_prefix() );
return strpos( $_SERVER[ 'REQUEST_URI' ], $rest_prefix ) !== false ? true : false;
}
function init() {
//load_plugin_textdomain( 'wp-retina-3x', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
if ( get_option( 'wr3x_disable_medium_large' ) ) {
remove_image_size( 'medium_large' );
add_filter( 'image_size_names_choose', array( $this, 'unset_medium_large' ) );
add_filter( 'intermediate_image_sizes_advanced', array( $this, 'unset_medium_large' ) );
}
if ( $this->is_rest() ) {
return;
}
if ( is_admin() ) {
wp_register_style( 'wr3x-admin-css', plugins_url( '/wr3x_admin.css', __FILE__ ) );
wp_enqueue_style( 'wr3x-admin-css' );
if ( !get_option( "wr3x_retina_admin" ) )
return;
}
$method = get_option( "wr3x_method" );
if ( $method == "Picturefill" ) {
add_action( 'wp_head', array( $this, 'picture_buffer_start' ) );
add_action( 'wp_footer', array( $this, 'picture_buffer_end' ) );
}
else if ( $method == 'HTML Rewrite' ) {
$is_retina = false;
if ( isset( $_COOKIE['devicePixelRatio'] ) ) {
$is_retina = ceil( floatval( $_COOKIE['devicePixelRatio'] ) ) > 1;
}
if ( $is_retina || $this->is_debug() ) {
add_action( 'wp_head', array( $this, 'buffer_start' ) );
add_action( 'wp_footer', array( $this, 'buffer_end' ) );
}
}
}
function unset_medium_large( $sizes ) {
unset( $sizes['medium_large'] );
return $sizes;
}
/**
*
* PICTURE METHOD
*
*/
function is_supported_image( $url ) {
$wr3x_supported_image = array( 'jpg', 'jpeg', 'png', 'gif' );
$ext = strtolower( pathinfo( $url, PATHINFO_EXTENSION ) );
if ( !in_array( $ext, $wr3x_supported_image ) ) {
$this->log( "Extension (" . $ext . ") is not " . implode( ', ', $wr3x_supported_image ) . "." );
return false;
}
return true;
}
function picture_buffer_start() {
ob_start( array( $this, "picture_rewrite" ) );
$this->log( "* HTML REWRITE FOR PICTUREFILL" );
}
function picture_buffer_end() {
@ob_end_flush();
}
// Replace the IMG tags by PICTURE tags with SRCSET
function picture_rewrite( $buffer ) {
if ( !isset( $buffer ) || trim( $buffer ) === '' )
return $buffer;
$html = new KubAT\PhpSimple\HtmlDomParser();
$lazysize = get_option( "wr3x_picturefill_lazysizes" ) && $this->admin->is_registered();
$killSrc = !get_option( "wr3x_picturefill_keep_src" );
$nodes_count = 0;
$nodes_replaced = 0;
$html = $html->str_get_html( $buffer );
if ( !$html ) {
$this->log( "The HTML buffer is null, another plugin might block the process." );
return $buffer;
}
// IMG TAGS
foreach( $html->find( 'img' ) as $element ) {
$nodes_count++;
$parent = $element->parent();
if ( $parent->tag == "picture" ) {
$this->log("The img tag is inside a picture tag. Tag ignored.");
continue;
}
else {
$valid = apply_filters( "wr3x_validate_src", $element->src );
if ( empty( $valid ) ) {
$nodes_count--;
continue;
}
// Original HTML
$from = substr( $element, 0 );
// SRC-SET already exists, let's check if LazySize is used
if ( !empty( $element->srcset ) ) {
if ( $lazysize ) {
$this->log( "The src-set has already been created but it will be modifid to data-srcset for lazyload." );
$element->class = $element->class . ' lazyload';
$element->{'data-srcset'} = $element->srcset;
if ( $killSrc ) {
$element->src = null;
}
else {
// If SRC is kept, to avoid it to load before LazySizes kicks in, we set srcset to a blank 1x1 pixel.
$element->srcset = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7";
}
$to = $element;
$buffer = str_replace( trim( $from, "</> "), trim( $to, "</> " ), $buffer );
$this->log( "The img tag '$from' was rewritten to '$to'" );
$nodes_replaced++;
}
else {
$this->log( "The src-set has already been created. Tag ignored." );
}
continue;
}
// Process of SRC-SET creation
if ( !$this->is_supported_image( $element->src ) ) {
$nodes_count--;
continue;
}
$retina_url = $this->get_retina_from_url( $element->src );
$retina_url = apply_filters( 'wr3x_img_retina_url', $retina_url );
if ( $retina_url != null ) {
$retina_url = $this->cdn_this( $retina_url );
$img_url = $this->cdn_this( $element->src );
$img_url = apply_filters( 'wr3x_img_url', $img_url );
if ( $lazysize ) {
$element->class = $element->class . ' lazyload';
$element->{'data-srcset'} = "$img_url, $retina_url 2x";
}
else
$element->srcset = "$img_url, $retina_url 2x";
if ( $killSrc )
$element->src = null;
else {
$img_src = apply_filters( 'wr3x_img_src', $element->src );
$element->src = $this->cdn_this( $img_src );
}
$to = $element;
$buffer = str_replace( trim( $from, "</> "), trim( $to, "</> " ), $buffer );
$this->log( "The img tag '$from' was rewritten to '$to'" );
$nodes_replaced++;
}
else {
$this->log( "The img tag was not rewritten. No retina for '" . $element->src . "'." );
}
}
}
$this->log( "$nodes_replaced/$nodes_count img tags were replaced." );
// INLINE CSS BACKGROUND
if ( get_option( 'wr3x_picturefill_css_background', false ) && $this->admin->is_registered() ) {
// Standard CSS background
preg_match_all( "/url(?:\(['\"]?)(.*?)(?:['\"]?\))/", $buffer, $matches );
//error_log( print_r( $matches, 1 ) );
if ( count( $matches ) == 2 ) {
$match_css = $matches[0];
$match_url = $matches[1];
}
// Lazy CSS background
preg_match_all( "/data-background=(?:['\"])(.*?)(?:['\"])/", $buffer, $matches );
if ( count( $matches ) == 2 ) {
$match_css = array_merge( $match_css, $matches[0] );
$match_url = array_merge( $match_url, $matches[1] );
}
// Lazy CSS background
preg_match_all( "/data-bigimg=(?:['\"])(.*?)(?:['\"])/", $buffer, $matches );
if ( count( $matches ) == 2 ) {
$match_css = array_merge( $match_css, $matches[0] );
$match_url = array_merge( $match_url, $matches[1] );
}
$nodes_count = 0;
$nodes_replaced = 0;
for ( $c = 0; $c < count( $match_css ); $c++ ) {
$css = $match_css[$c];
$url = $match_url[$c];
if ( !$this->is_supported_image( $url ) )
continue;
$nodes_count++;
$retina_url = $this->get_retina_from_url( $url );
$retina_url = apply_filters( 'wr3x_img_retina_url', $retina_url );
if ( $retina_url != null ) {
$retina_url = $this->cdn_this( $retina_url );
$minibuffer = str_replace( $url, $retina_url, $css );
$buffer = str_replace( $css, $minibuffer, $buffer );
$this->log( "The background src '$css' was rewritten to '$minibuffer'" );
$nodes_replaced++;
}
else {
$this->log( "The background src was not rewritten. No retina for '" . $url . "'." );
}
}
$this->log( "$nodes_replaced/$nodes_count background src were replaced." );
}
$html->clear();
return $buffer;
}
/**
*
* HTML REWRITE METHOD
*
*/
function buffer_start () {
ob_start( array( $this, "html_rewrite" ) );
$this->log( "* HTML REWRITE" );
}
function buffer_end () {
@ob_end_flush();
}
// Replace the images by retina images (if available)
function html_rewrite( $buffer ) {
if ( !isset( $buffer ) || trim( $buffer ) === '' )
return $buffer;
$nodes_count = 0;
$nodes_replaced = 0;
$doc = new DOMDocument();
@$doc->loadHTML( $buffer ); // = ($doc->strictErrorChecking = false;)
$imageTags = $doc->getElementsByTagName('img');
foreach ( $imageTags as $tag ) {
$nodes_count++;
$img_pathinfo = $this->get_pathinfo_from_image_src( $tag->getAttribute('src') );
$filepath = trailingslashit( $this->get_upload_root() ) . $img_pathinfo;
$system_retina = $this->get_retina( $filepath );
if ( $system_retina != null ) {
$retina_pathinfo = $this->cdn_this( ltrim( str_replace( $this->get_upload_root(), "", $system_retina ), '/' ) );
$buffer = str_replace( $img_pathinfo, $retina_pathinfo, $buffer );
$this->log( "The img src '$img_pathinfo' was replaced by '$retina_pathinfo'" );
$nodes_replaced++;
}
else {
$this->log( "The file '$system_retina' was not found. Tag not modified." );
}
}
$this->log( "$nodes_replaced/$nodes_count were replaced." );
return $buffer;
}
// Converts PHP INI size type (e.g. 24M) to int
function parse_ini_size( $size ) {
$unit = preg_replace('/[^bkmgtpezy]/i', '', $size);
$size = preg_replace('/[^0-9\.]/', '', $size);
if ( $unit )
return round( $size * pow( 1024, stripos( 'bkmgtpezy', $unit[0] ) ) );
else
round( $size );
}
function get_max_filesize() {
if ( defined ('HHVM_VERSION' ) ) {
$post_max_size = ini_get( 'post_max_size' ) ? (int)$this->parse_ini_size( ini_get( 'post_max_size' ) ) : (int)ini_get( 'hhvm.server.max_post_size' );
$upload_max_filesize = ini_get( 'upload_max_filesize' ) ? (int)$this->parse_ini_size( ini_get( 'upload_max_filesize' ) ) :
(int)ini_get( 'hhvm.server.upload.upload_max_file_size' );
}
else {
$post_max_size = (int)$this->parse_ini_size( ini_get( 'post_max_size' ) );
$upload_max_filesize = (int)$this->parse_ini_size( ini_get( 'upload_max_filesize' ) );
}
$max = min( $post_max_size, $upload_max_filesize );
return $max > 0 ? $max : 66600000;
}
/**
*
* RESPONSIVE IMAGES METHOD
*
*/
function calculate_image_srcset( $srcset, $size ) {
if ( get_option( "wr3x_disable_responsive" ) )
return null;
$method = get_option( "wr3x_method" );
if ( $method == "none" )
return $srcset;
$count = 0;
$total = 0;
$retinized_srcset = $srcset;
if ( empty( $srcset ) )
return $srcset;
foreach ( $srcset as $s => $cfg ) {
$total++;
$retina = $this->cdn_this( $this->get_retina_from_url( $cfg['url'] ) );
if ( !empty( $retina ) ) {
$count++;
$retinized_srcset[(int)$s * 2] = array(
'url' => $retina,
'descriptor' => 'w',
'value' => (int)$s * 2 );
}
}
$this->log( "WP's srcset: " . $count . " retina files added out of " . $total . " image sizes" );
return $retinized_srcset;
}
/**
*
* ISSUES CALCULATION AND FUNCTIONS
*
*/
// Compares two images dimensions (resolutions) against each while accepting an margin error
function are_dimensions_ok( $width, $height, $retina_width, $retina_height ) {
$w_margin = $width - $retina_width;
$h_margin = $height - $retina_height;
return ( $w_margin >= -2 && $h_margin >= -2 );
}
// UPDATE THE ISSUE STATUS OF THIS ATTACHMENT
function update_issue_status( $attachmentId, $issues = null, $info = null ) {
if ( $this->is_ignore( $attachmentId ) )
return;
if ( $issues == null )
$issues = $this->get_issues();
if ( $info == null )
$info = $this->retina_info( $attachmentId );
$consideredIssue = in_array( $attachmentId, $issues );
$realIssue = $this->info_has_issues( $info );
if ( $consideredIssue && !$realIssue )
$this->remove_issue( $attachmentId );
else if ( !$consideredIssue && $realIssue )
$this->add_issue( $attachmentId );
return $realIssue;
}
function get_issues() {
$issues = get_transient( 'wr3x_issues' );
if ( !$issues || !is_array( $issues ) ) {
$issues = array();
set_transient( 'wr3x_issues', $issues );
}
return $issues;
}
// CHECK IF THE 'INFO' OBJECT CONTAINS ISSUE (RETURN TRUE OR FALSE)
function info_has_issues( $info ) {
foreach ( $info as $aindex => $aval ) {
if ( is_array( $aval ) || $aval == 'PENDING' )
return true;
}
return false;
}
function calculate_issues() {
global $wpdb;
$postids = $wpdb->get_col( "
SELECT p.ID FROM $wpdb->posts p
WHERE post_status = 'inherit'
AND post_type = 'attachment'" . $this->create_sql_if_wpml_original() . "
AND ( post_mime_type = 'image/jpeg' OR
post_mime_type = 'image/jpg' OR
post_mime_type = 'image/png' OR
post_mime_type = 'image/gif' )
" );
$issues = array();
foreach ( $postids as $id ) {
$info = $this->retina_info( $id );
if ( $this->info_has_issues( $info ) )
array_push( $issues, $id );
}
set_transient( 'wr3x_ignores', array() );
set_transient( 'wr3x_issues', $issues );
}
function add_issue( $attachmentId ) {
if ( $this->is_ignore( $attachmentId ) )
return;
$issues = $this->get_issues();
if ( !in_array( $attachmentId, $issues ) ) {
array_push( $issues, $attachmentId );
set_transient( 'wr3x_issues', $issues );
}
return $issues;
}
function remove_issue( $attachmentId, $onlyIgnore = false ) {
$issues = array_diff( $this->get_issues(), array( $attachmentId ) );
set_transient( 'wr3x_issues', $issues );
if ( !$onlyIgnore )
$this->remove_ignore( $attachmentId );
return $issues;
}
// IGNORE
function get_ignores( $force = false ) {
$ignores = get_transient( 'wr3x_ignores' );
if ( !$ignores || !is_array( $ignores ) ) {
$ignores = array();
set_transient( 'wr3x_ignores', $ignores );
}
return $ignores;
}
function is_ignore( $attachmentId ) {
$ignores = $this->get_ignores();
return in_array( $attachmentId, $this->get_ignores() );
}
function remove_ignore( $attachmentId ) {
$ignores = $this->get_ignores();
$ignores = array_diff( $ignores, array( $attachmentId ) );
set_transient( 'wr3x_ignores', $ignores );
return $ignores;
}
function add_ignore( $attachmentId ) {
$ignores = $this->get_ignores();
if ( !in_array( $attachmentId, $ignores ) ) {
array_push( $ignores, $attachmentId );
set_transient( 'wr3x_ignores', $ignores );
}
$this->remove_issue( $attachmentId, true );
return $ignores;
}
/**
*
* INFORMATION ABOUT THE RETINA IMAGE IN HTML
*
*/
function html_get_basic_retina_info_full( $attachmentId, $retina_info ) {
$status = ( isset( $retina_info ) && isset( $retina_info['full-size'] ) ) ? $retina_info['full-size'] : 'IGNORED';
if ( $status == 'EXISTS' ) {
return '<ul class="meow-sized-images"><li class="meow-bk-blue" title="full-size"></li></ul>';
}
else if ( is_array( $status ) ) {
return '<ul class="meow-sized-images"><li class="meow-bk-orange" title="full-size"></li></ul>';
}
else if ( $status == 'IGNORED' ) {
return __( "N/A", "wp-retina-3x" );
}
return $status;
}
function format_title( $i, $size ) {
return $i . ' (' . ( $size['width'] * 2 ) . 'x' . ( $size['height'] * 2 ) . ')';
}
// Information for the 'Media Sizes Retina-ized' Column in the Retina Dashboard
function html_get_basic_retina_info( $attachmentId, $retina_info ) {
$sizes = $this->get_active_image_sizes();
$result = '<ul class="meow-sized-images" postid="' . ( is_integer( $attachmentId ) ? $attachmentId : $attachmentId->ID ) . '">';
foreach ( $sizes as $i => $size ) {
$status = ( isset( $retina_info ) && isset( $retina_info[$i] ) ) ? $retina_info[$i] : null;
if ( is_array( $status ) )
$result .= '<li class="meow-bk-red" title="' . $this->format_title( $i, $size ) . '">'
. MeowApps_Admin::size_shortname( $i ) . '</li>';
else if ( $status == 'EXISTS' )
$result .= '<li class="meow-bk-blue" title="' . $this->format_title( $i, $size ) . '">'
. MeowApps_Admin::size_shortname( $i ) . '</li>';
else if ( $status == 'PENDING' )
$result .= '<li class="meow-bk-orange" title="' . $this->format_title( $i, $size ) . '">'
. MeowApps_Admin::size_shortname( $i ) . '</li>';
else if ( $status == 'MISSING' )
$result .= '<li class="meow-bk-red" title="' . $this->format_title( $i, $size ) . '">'
. MeowApps_Admin::size_shortname( $i ) . '</li>';
else if ( $status == 'IGNORED' )
$result .= '<li class="meow-bk-gray" title="' . $this->format_title( $i, $size ) . '">'
. MeowApps_Admin::size_shortname( $i ) . '</li>';
else {
error_log( "Retina: This status is not recognized: " . $status );
}
}
$result .= '</ul>';
return $result;
}
// Information for Details in the Retina Dashboard
function html_get_details_retina_info( $post, $retina_info ) {
if ( !$this->admin->is_registered() ) {
return __( "PRO VERSION ONLY", 'wp-retina-3x' );
}
$sizes = $this->get_image_sizes();
$total = 0; $possible = 0; $issue = 0; $ignored = 0; $retina = 0;
$postinfo = get_post( $post, OBJECT );
$meta = wp_get_attachment_metadata( $post );
$fullsize_file = get_attached_file( $post );
$pathinfo_system = pathinfo( $fullsize_file );
$pathinfo = pathinfo( $meta['file'] );
$uploads = wp_upload_dir();
$basepath_url = trailingslashit( $uploads['baseurl'] ) . $pathinfo['dirname'];
if ( get_option( "wr3x_full_size" ) ) {
$sizes['full-size']['file'] = $pathinfo['basename'];
$sizes['full-size']['width'] = $meta['width'];
$sizes['full-size']['height'] = $meta['height'];
$meta['sizes']['full-size']['file'] = $pathinfo['basename'];
$meta['sizes']['full-size']['width'] = $meta['width'];
$meta['sizes']['full-size']['height'] = $meta['height'];
}
$result = "<p>This screen displays all the image sizes set-up by your WordPress configuration with the Retina details.</p>";
$result .= "<br /><a target='_blank' href='" . trailingslashit( $uploads['baseurl'] ) . $meta['file'] . "'><img src='" . trailingslashit( $uploads['baseurl'] ) . $meta['file'] . "' height='100px' style='float: left; margin-right: 10px;' /></a><div class='base-info'>";
$result .= "Title: <b>" . ( $postinfo->post_title ? $postinfo->post_title : '<i>Untitled</i>' ) . "</b><br />";
$result .= "Full-size: <b>" . $meta['width'] . "×" . $meta['height'] . "</b><br />";
$result .= "Image URL: <a target='_blank' href='" . trailingslashit( $uploads['baseurl'] ) . $meta['file'] . "'>" . trailingslashit( $uploads['baseurl'] ) . $meta['file'] . "</a><br />";
$result .= "Image Path: " . $fullsize_file . "<br />";
$result .= "</div><div style='clear: both;'></div><br />";
$result .= "<div class='scrollable-info'>";
foreach ( $sizes as $i => $sizemeta ) {
$total++;
$normal_file_system = ""; $retina_file_system = "";
$normal_file = ""; $retina_file = ""; $width = ""; $height = "";
if ( isset( $retina_info[$i] ) && $retina_info[$i] == 'IGNORED' ) {
$status = "IGNORED";
}
else if ( !isset( $meta['sizes'] ) ) {
$statusText = __( "The metadata is broken! This is not related to the retina plugin. You should probably use a plugin to re-generate the missing metadata and images.", 'wp-retina-3x' );
$status = "MISSING";
}
else if ( !isset( $meta['sizes'][$i] ) ) {
$statusText = sprintf( __( "The image size '%s' could not be found. You probably changed your image sizes but this specific image was not re-build. This is not related to the retina plugin. You should probably use a plugin to re-generate the missing metadata and images.", 'wp-retina-3x' ), $i );
$status = "MISSING";
}
else {
$normal_file_system = trailingslashit( $pathinfo_system['dirname'] ) . $meta['sizes'][$i]['file'];
$retina_file_system = $this->get_retina( $normal_file_system );
$normal_file = trailingslashit( $basepath_url ) . $meta['sizes'][$i]['file'];
$retina_file = $this->get_retina_from_url( $normal_file );
$status = ( isset( $retina_info ) && isset( $retina_info[$i] ) ) ? $retina_info[$i] : null;
$width = $meta['sizes'][$i]['width'];
$height = $meta['sizes'][$i]['height'];
}
$result .= "<h3>";
// Status Icon
if ( is_array( $status ) && $i == 'full-size' ) {
$result .= '<div class="meow-sized-image meow-bk-red"></div>';
$statusText = sprintf( __( "The retina version of the Full-Size image is missing.<br />Full Size Retina has been checked in the Settings and this image is therefore required.<br />Please drag & drop an image of at least <b>%dx%d</b> in the <b>Full-Size Retina Upload</b> column.", 'wp-retina-3x' ), $status['width'], $status['height'] );
}
else if ( is_array( $status ) ) {
$result .= '<div class="meow-sized-image meow-bk-red"></div>';
$statusText = sprintf( __( "The Full-Size image is too small (<b>%dx%d</b>) and this size cannot be generated.<br />Please upload an image of at least <b>%dx%d</b>.", 'wp-retina-3x' ), $meta['width'], $meta['height'], $status['width'], $status['height'] );
$issue++;
}
else if ( $status == 'EXISTS' ) {
$result .= '<div class="meow-sized-image meow-bk-blue"></div>';
$statusText = "";
$retina++;
}
else if ( $status == 'PENDING' ) {
$result .= '<div class="meow-sized-image meow-bk-orange"></div>';
$statusText = __( "The retina image can be created. Please use the 'GENERATE' button.", 'wp-retina-3x' );
$possible++;
}
else if ( $status == 'MISSING' ) {
$result .= '<div class="meow-sized-image meow-bk-gray"></div>';
$statusText = __( "The standard image normally created by WordPress is missing.", 'wp-retina-3x' );
$total--;
}
else if ( $status == 'IGNORED' ) {
$result .= '<div class="meow-sized-image meow-bk-gray"></div>';
$statusText = __( "This size is ignored by your retina settings.", 'wp-retina-3x' );
$ignored++;
$total--;
}
$result .= " Size: $i</h3><p>$statusText</p>";
if ( !is_array( $status ) && $status !== 'IGNORED' && $status !== 'MISSING' ) {
$result .= "<table><tr><th>Normal (" . $width . "×" . $height. ")</th><th>Retina 2x (" . $width * 2 . "×" . $height * 2 . ")</th></tr><tr><td><a target='_blank' href='$normal_file'><img src='$normal_file' width='100'></a></td><td><a target='_blank' href='$retina_file'><img src='$retina_file' width='100'></a></td></tr></table>";
$result .= "<p><small>";
$result .= "Image URL: <a target='_blank' href='$normal_file'>$normal_file</a><br />";
$result .= "Retina URL: <a target='_blank' href='$retina_file'>$retina_file</a><br />";
$result .= "Image Path: $normal_file_system<br />";
$result .= "Retina Path: $retina_file_system<br />";
$result .= "</small></p>";
}
}
$result .= "</table>";
$result .= "</div>";
return $result;
}
/**
*
* WP Retina 3x CORE
*
*/
// Get WordPress upload directory
function get_upload_root() {
$uploads = wp_upload_dir();
return $uploads['basedir'];
}
function get_upload_root_url() {
$uploads = wp_upload_dir();
return $uploads['baseurl'];
}
// Get WordPress directory
function get_wordpress_root() {
return ABSPATH;
}
// Resize the image
function resize( $file_path, $width, $height, $crop, $newfile, $customCrop = false ) {
$crop_params = $crop == '1' ? true : $crop;
$orig_size = getimagesize( $file_path );
$image_src = array ();
$image_src[0] = $file_path;
$image_src[1] = $orig_size[0];
$image_src[2] = $orig_size[1];
$file_info = pathinfo( $file_path );
$newfile_info = pathinfo( $newfile );
$extension = '.' . $newfile_info['extension'];
$no_ext_path = $file_info['dirname'] . '/' . $file_info['filename'];
$cropped_img_path = $no_ext_path . '-' . $width . 'x' . $height . "-tmp" . $extension;
$image = wp_get_image_editor( $file_path );
if ( is_wp_error( $image ) ) {
$this->log( "Resize failure: " . $image->get_error_message() );
error_log( "Resize failure: " . $image->get_error_message() );
return null;
}
// Resize or use Custom Crop
if ( !$customCrop )
$image->resize( $width, $height, $crop_params );
else
$image->crop( $customCrop['x'] * $customCrop['scale'], $customCrop['y'] * $customCrop['scale'], $customCrop['w'] * $customCrop['scale'], $customCrop['h'] * $customCrop['scale'], $width, $height, false );
// Quality
$quality = get_option( 'wr3x_quality', 90 );
$image->set_quality( $quality );
$saved = $image->save( $cropped_img_path );
if ( is_wp_error( $saved ) ) {
$error = $saved->get_error_message();
trigger_error( "Retina: Could not create/resize image " . $file_path . " to " . $newfile . ": " . $error , E_WARNING );
error_log( "Retina: Could not create/resize image " . $file_path . " to " . $newfile . ":" . $error );
return null;
}
if ( rename( $saved['path'], $newfile ) )
$cropped_img_path = $newfile;
else {
trigger_error( "Retina: Could not move " . $saved['path'] . " to " . $newfile . "." , E_WARNING );
error_log( "Retina: Could not move " . $saved['path'] . " to " . $newfile . "." );
return null;
}
$new_img_size = getimagesize( $cropped_img_path );
$new_img = str_replace( basename( $image_src[0] ), basename( $cropped_img_path ), $image_src[0] );
$vt_image = array ( 'url' => $new_img, 'width' => $new_img_size[0], 'height' => $new_img_size[1] );
return $vt_image;
}
// Return the retina file if there is any (system path)
function get_retina( $file ) {
$pathinfo = pathinfo( $file ) ;
if ( empty( $pathinfo ) || !isset( $pathinfo['dirname'] ) ) {
if ( empty( $file ) ) {
$this->log( "An empty filename was given to $this->get_retina()." );
error_log( "An empty filename was given to $this->get_retina()." );
}
else {
$this->log( "Pathinfo is null for " . $file . "." );
error_log( "Pathinfo is null for " . $file . "." );
}
return null;
}
$retina_file = trailingslashit( $pathinfo['dirname'] ) . $pathinfo['filename'] .
$this->retina_extension() . ( isset( $pathinfo['extension'] ) ? $pathinfo['extension'] : "" );
if ( file_exists( $retina_file ) )
return $retina_file;
$this->log( "Retina file at '{$retina_file}' does not exist." );
return null;
}
function get_retina_from_remote_url( $url ) {
$over_http = get_option( 'wr3x_over_http_check', false ) && $this->admin->is_registered();
if ( !$over_http )
return null;
$potential_retina_url = $this->rewrite_url_to_retina( $url );
$response = wp_remote_head( $potential_retina_url, array(
'user-agent' => "MeowApps-Retina",
'sslverify' => false,
'timeout' => 10
));
if ( is_array( $response ) && is_array( $response['response'] ) && isset( $response['response']['code'] ) ) {
if ( $response['response']['code'] == 200 ) {
$this->log( "Retina URL: " . $potential_retina_url, true);
return $potential_retina_url;
}
else
$this->log( "Remote head failed with code " . $response['response']['code'] . "." );
}
$this->log( "Retina URL couldn't be found (URL -> Retina URL).", true);
}
// Return retina URL from the image URL
function get_retina_from_url( $url ) {
$this->log( "Standard URL: " . $url, true);
$over_http = get_option( 'wr3x_over_http_check', false ) && $this->admin->is_registered();
$filepath = $this->from_url_to_system( $url );
if ( empty ( $filepath ) )
return $this->get_retina_from_remote_url( $url );
$this->log( "Standard PATH: " . $filepath, true);
$system_retina = $this->get_retina( $filepath );
if ( empty ( $system_retina ) )
return $this->get_retina_from_remote_url( $url );
$this->log( "Retina PATH: " . $system_retina, true);
$retina_url = $this->rewrite_url_to_retina( $url );
$this->log( "Retina URL: " . $retina_url, true);
return $retina_url;
}
// Get the filepath from the URL
function from_url_to_system( $url ) {
$img_pathinfo = $this->get_pathinfo_from_image_src( $url );
$filepath = trailingslashit( $this->get_wordpress_root() ) . $img_pathinfo;
if ( file_exists( $filepath ) )
return $filepath;
$filepath = trailingslashit( $this->get_upload_root() ) . $img_pathinfo;
if ( file_exists( $filepath ) )
return $filepath;
$this->log( "Standard PATH couldn't be found (URL -> System).", true);
return null;
}
function rewrite_url_to_retina( $url ) {
$whereisdot = strrpos( $url, '.' );
$url = substr( $url, 0, $whereisdot ) . $this->retina_extension() . substr( $url, $whereisdot + 1 );
return $url;
}
// Clean the PathInfo of the IMG SRC.
// IMPORTANT: This function STRIPS THE UPLOAD FOLDER if it's found
// REASON: The reason is that on some installs the uploads folder is linked to a different "unlogical" physical folder
// http://wordpress.org/support/topic/cant-find-retina-file-with-custom-uploads-constant?replies=3#post-5078892
function get_pathinfo_from_image_src( $image_src ) {
$uploads_url = trailingslashit( $this->get_upload_root_url() );
if ( strpos( $image_src, $uploads_url ) === 0 )
return ltrim( substr( $image_src, strlen( $uploads_url ) ), '/');
else if ( strpos( $image_src, wp_make_link_relative( $uploads_url ) ) === 0 )
return ltrim( substr( $image_src, strlen( wp_make_link_relative( $uploads_url ) ) ), '/');
$img_info = parse_url( $image_src );
return ltrim( $img_info['path'], '/' );
}
// Rename this filename with CDN
function cdn_this( $url ) {
$cdn_domain = "";
if ( $this->admin->is_registered() )
$cdn_domain = get_option( "wr3x_cdn_domain" );
if ( empty( $cdn_domain ) )
return $url;
$home_url = parse_url( home_url() );
$uploads_url = trailingslashit( $this->get_upload_root_url() );
$uploads_url_cdn = str_replace( $home_url['host'], $cdn_domain, $uploads_url );
// Perform additional CDN check (Issue #1631 by Martin)
if ( strpos( $url, $uploads_url_cdn ) === 0 ) {
$this->log( "URL already has CDN: $url" );
return $url;
}
$this->log( "URL before CDN: $url" );
$site_url = preg_replace( '#^https?://#', '', rtrim( get_site_url(), '/' ) );
$new_url = str_replace( $site_url, $cdn_domain, $url );
$this->log( "URL with CDN: $new_url" );
return $new_url;
}
// function admin_menu() {
// add_options_page( 'Retina', 'Retina', 'manage_options', 'wr3x_settings', 'wr3x_settings_page' );
// }
function get_image_sizes() {
$sizes = array();
global $_wp_additional_image_sizes;
foreach ( get_intermediate_image_sizes() as $s ) {
$crop = false;
if ( isset( $_wp_additional_image_sizes[$s] ) ) {
$width = intval($_wp_additional_image_sizes[$s]['width']);
$height = intval($_wp_additional_image_sizes[$s]['height']);
$crop = $_wp_additional_image_sizes[$s]['crop'];
} else {
$width = get_option( $s . '_size_w' );
$height = get_option( $s . '_size_h' );
$crop = get_option( $s . '_crop' );
}
$sizes[$s] = array( 'width' => $width, 'height' => $height, 'crop' => $crop );
}
if ( get_option( 'wr3x_disable_medium_large' ) )
unset( $sizes['medium_large'] );
return $sizes;
}
function get_active_image_sizes() {
$sizes = $this->get_image_sizes();
$active_sizes = array();
$ignore = get_option( "wr3x_ignore_sizes", array() );
if ( empty( $ignore ) )
$ignore = array();
$ignore = array_keys( $ignore );
foreach ( $sizes as $name => $attr ) {
$validSize = !empty( $attr['width'] ) || !empty( $attr['height'] );
if ( $validSize && !in_array( $name, $ignore ) ) {
$active_sizes[$name] = $attr;
}
}
return $active_sizes;
}
function is_wpml_installed() {
return function_exists( 'icl_object_id' ) && !class_exists( 'Polylang' );
}
// SQL Query if WPML with an AND to check if the p.ID (p is attachment) is indeed an original
// That is to limit the SQL that queries all the attachments
function create_sql_if_wpml_original() {
$whereIsOriginal = "";
if ( $this->is_wpml_installed() ) {
global $wpdb;
global $sitepress;
$tbl_wpml = $wpdb->prefix . "icl_translations";
$language = $sitepress->get_default_language();
$whereIsOriginal = " AND p.ID IN (SELECT element_id FROM $tbl_wpml WHERE element_type = 'post_attachment' AND language_code = '$language') ";
}
return $whereIsOriginal;
}
function is_debug() {
static $debug = -1;
if ( $debug == -1 ) {
$debug = get_option( "wr3x_debug" );
}
return !!$debug;
}
function log( $data, $isExtra = false ) {
if ( !$this->is_debug() )
return;
$fh = fopen( trailingslashit( dirname(__FILE__) ) . 'wp-retina-3x.log', 'a' );
$date = date( "Y-m-d H:i:s" );
fwrite( $fh, "$date: {$data}\n" );
fclose( $fh );
}
// Based on http://wordpress.stackexchange.com/questions/6645/turn-a-url-into-an-attachment-post-id
function get_attachment_id( $file ) {
$query = array(
'post_type' => 'attachment',
'meta_query' => array(
array(
'key' => '_wp_attached_file',
'value' => ltrim( $file, '/' )
)
)
);
$posts = get_posts( $query );
foreach( $posts as $post )
return $post->ID;
return false;
}
// Return the retina extension followed by a dot
function retina_extension() {
return '@2x.';
}
function is_image_meta( $meta ) {
if ( !isset( $meta ) )
return false;
if ( !isset( $meta['sizes'] ) )
return false;
if ( !isset( $meta['width'], $meta['height'] ) )
return false;
return true;
}
function retina_info( $id ) {
$result = array();
$meta = wp_get_attachment_metadata( $id );
if ( !$this->is_image_meta( $meta ) )
return $result;
$original_width = $meta['width'];
$original_height = $meta['height'];
$sizes = $this->get_image_sizes();
$required_files = true;
$originalfile = get_attached_file( $id );
$pathinfo = pathinfo( $originalfile );
$basepath = $pathinfo['dirname'];
$ignore = get_option( "wr3x_ignore_sizes", array() );
if ( empty( $ignore ) )
$ignore = array();
$ignore = array_keys( $ignore );
// Full-Size (if required in the settings)
$fullsize_required = get_option( "wr3x_full_size" ) && $this->admin->is_registered();
$retina_file = trailingslashit( $pathinfo['dirname'] ) . $pathinfo['filename'] . $this->retina_extension() . $pathinfo['extension'];
if ( $retina_file && file_exists( $retina_file ) )
$result['full-size'] = 'EXISTS';
else if ( $fullsize_required && $retina_file )
$result['full-size'] = array( 'width' => $original_width * 2, 'height' => $original_height * 2 );
//}
if ( $sizes ) {
foreach ( $sizes as $name => $attr ) {
$validSize = !empty( $attr['width'] ) || !empty( $attr['height'] );
if ( !$validSize || in_array( $name, $ignore ) ) {
$result[$name] = 'IGNORED';
continue;
}
// Check if the file related to this size is present
$pathinfo = null;
$retina_file = null;
if ( isset( $meta['sizes'][$name]['width'] ) && isset( $meta['sizes'][$name]['height']) && isset($meta['sizes'][$name]) && isset($meta['sizes'][$name]['file']) && file_exists( trailingslashit( $basepath ) . $meta['sizes'][$name]['file'] ) ) {
$normal_file = trailingslashit( $basepath ) . $meta['sizes'][$name]['file'];
$pathinfo = pathinfo( $normal_file ) ;
$retina_file = trailingslashit( $pathinfo['dirname'] ) . $pathinfo['filename'] . $this->retina_extension() . $pathinfo['extension'];
}
// None of the file exist
else {
$result[$name] = 'MISSING';
$required_files = false;
continue;
}
// The retina file exists
if ( $retina_file && file_exists( $retina_file ) ) {
$result[$name] = 'EXISTS';
continue;
}
// The size file exists
else if ( $retina_file )
$result[$name] = 'PENDING';
// The retina file exists
$required_width = $meta['sizes'][$name]['width'] * 2;
$required_height = $meta['sizes'][$name]['height'] * 2;
if ( !$this->are_dimensions_ok( $original_width, $original_height, $required_width, $required_height ) ) {
$result[$name] = array( 'width' => $required_width, 'height' => $required_height );
}
}
}
return $result;
}
function delete_attachment( $attach_id, $deleteFullSize = true ) {
$meta = wp_get_attachment_metadata( $attach_id );
$this->delete_images( $meta, $deleteFullSize );
$this->remove_issue( $attach_id );
}
function wp_generate_attachment_metadata( $meta ) {
if ( get_option( "wr3x_auto_generate" ) == true )
if ( $this->is_image_meta( $meta ) )
$this->generate_images( $meta );
return $meta;
}
/**
* @param mixed[] $meta
* int width
* int height
* string file
* mixed[][] sizes
*/
function generate_images( $meta ) {
global $_wp_additional_image_sizes;
$sizes = $this->get_image_sizes();
if ( !isset( $meta['file'] ) ) return;
$uploads = wp_upload_dir();
// Check if the full-size-retina version of the generation source exists.
// If it exists, replace the file path and its dimensions
if ( $retina = $this->get_retina( $uploads['basedir'] . '/' . $meta['file'] ) ) {
$meta['file'] = substr( $retina, strlen( $uploads['basedir'] ) + 1 );
$dim = getimagesize( $retina );
$meta['width'] = $dim[0];
$meta['height'] = $dim[1];
}
$originalfile = $meta['file'];
$pathinfo = pathinfo( $originalfile );
$original_basename = $pathinfo['basename'];
$basepath = trailingslashit( $uploads['basedir'] ) . $pathinfo['dirname'];
$ignore = get_option( "wr3x_ignore_sizes" );
if ( empty( $ignore ) )
$ignore = array();
$ignore = array_keys( $ignore );
$issue = false;
$id = $this->get_attachment_id( $meta['file'] );
/**
* @param $id ID of the attachment whose retina image is to be generated
*/
do_action( 'wr3x_before_generate_retina', $id );
$this->log("* GENERATE RETINA FOR ATTACHMENT '{$meta['file']}'");
$this->log( "Full-Size is {$original_basename}." );
foreach ( $sizes as $name => $attr ) {
$normal_file = "";
if ( in_array( $name, $ignore ) ) {
$this->log( "Retina for {$name} ignored (settings)." );
continue;
}
// Is the file related to this size there?
$pathinfo = null;
$retina_file = null;
if ( isset( $meta['sizes'][$name] ) && isset( $meta['sizes'][$name]['file'] ) ) {
$normal_file = trailingslashit( $basepath ) . $meta['sizes'][$name]['file'];
$pathinfo = pathinfo( $normal_file ) ;
$retina_file = trailingslashit( $pathinfo['dirname'] ) . $pathinfo['filename'] . $this->retina_extension() . $pathinfo['extension'];
}
if ( $retina_file && file_exists( $retina_file ) ) {
$this->log( "Base for {$name} is '{$normal_file }'." );
$this->log( "Retina for {$name} already exists: '$retina_file'." );
continue;
}
if ( $retina_file ) {
$originalfile = trailingslashit( $pathinfo['dirname'] ) . $original_basename;
if ( !file_exists( $originalfile ) ) {
$this->log( "[ERROR] Original file '{$originalfile}' cannot be found." );
return $meta;
}
// Maybe that new image is exactly the size of the original image.
// In that case, let's make a copy of it.
if ( $meta['sizes'][$name]['width'] * 2 == $meta['width'] && $meta['sizes'][$name]['height'] * 2 == $meta['height'] ) {
copy ( $originalfile, $retina_file );
$this->log( "Retina for {$name} created: '{$retina_file}' (as a copy of the full-size)." );
}
// Otherwise let's resize (if the original size is big enough).
else if ( $this->are_dimensions_ok( $meta['width'], $meta['height'], $meta['sizes'][$name]['width'] * 2, $meta['sizes'][$name]['height'] * 2 ) ) {
// Change proposed by Nicscott01, slighlty modified by Jordy (+isset)
// (https://wordpress.org/support/topic/issue-with-crop-position?replies=4#post-6200271)
$crop = isset( $_wp_additional_image_sizes[$name] ) ? $_wp_additional_image_sizes[$name]['crop'] : true;
$customCrop = apply_filters( 'wr3x_custom_crop', null, $id, $name );
// // Support for Manual Image Crop
// // If the size of the image was manually cropped, let's keep it.
// if ( class_exists( 'ManualImageCrop' ) && isset( $meta['micSelectedArea'] ) && isset( $meta['micSelectedArea'][$name] ) && isset( $meta['micSelectedArea'][$name]['scale'] ) ) {
// $customCrop = $meta['micSelectedArea'][$name];
// }
$image = $this->resize( $originalfile, $meta['sizes'][$name]['width'] * 2,
$meta['sizes'][$name]['height'] * 2, $crop, $retina_file, $customCrop );
}
if ( !file_exists( $retina_file ) ) {
$is_ok = apply_filters( "wr3x_last_chance_generate", false, $id, $retina_file,
$meta['sizes'][$name]['width'] * 2, $meta['sizes'][$name]['height'] * 2 );
if ( !$is_ok ) {
$this->log( "[ERROR] Retina for {$name} could not be created. Full-Size is " . $meta['width'] . "x" . $meta['height'] . " but Retina requires a file of at least " . $meta['sizes'][$name]['width'] * 2 . "x" . $meta['sizes'][$name]['height'] * 2 . "." );
$issue = true;
}
}
else {
do_action( 'wr3x_retina_file_added', $id, $retina_file, $name );
$this->log( "Retina for {$name} created: '{$retina_file}'." );
}
} else {
if ( empty( $normal_file ) )
$this->log( "[ERROR] Base file for '{$name}' does not exist." );
else
$this->log( "[ERROR] Base file for '{$name}' cannot be found here: '{$normal_file}'." );
}
}
// Checks attachment ID + issues
if ( !$id )
return $meta;
if ( $issue )
$this->add_issue( $id );
else
$this->remove_issue( $id );
/**
* @param $id ID of the attachment whose retina image has been generated
*/
do_action( 'wr3x_generate_retina', $id );
return $meta;
}
function delete_images( $meta, $deleteFullSize = false ) {
if ( !$this->is_image_meta( $meta ) )
return $meta;
$sizes = $meta['sizes'];
if ( !$sizes || !is_array( $sizes ) )
return $meta;
$this->log("* DELETE RETINA FOR ATTACHMENT '{$meta['file']}'");
$originalfile = $meta['file'];
$id = $this->get_attachment_id( $originalfile );
$pathinfo = pathinfo( $originalfile );
$uploads = wp_upload_dir();
$basepath = trailingslashit( $uploads['basedir'] ) . $pathinfo['dirname'];
foreach ( $sizes as $name => $attr ) {
$pathinfo = pathinfo( $attr['file'] );
$retina_file = $pathinfo['filename'] . $this->retina_extension() . $pathinfo['extension'];
if ( file_exists( trailingslashit( $basepath ) . $retina_file ) ) {
$fullpath = trailingslashit( $basepath ) . $retina_file;
unlink( $fullpath );
do_action( 'wr3x_retina_file_removed', $id, $retina_file );
$this->log("Deleted '$fullpath'.");
}
}
// Remove full-size if there is any
if ( $deleteFullSize ) {
$pathinfo = pathinfo( $originalfile );
$retina_file = $pathinfo[ 'filename' ] . $this->retina_extension() . $pathinfo[ 'extension' ];
if ( file_exists( trailingslashit( $basepath ) . $retina_file ) ) {
$fullpath = trailingslashit( $basepath ) . $retina_file;
unlink( $fullpath );
do_action( 'wr3x_retina_file_removed', $id, $retina_file );
$this->log( "Deleted '$fullpath'." );
}
}
return $meta;
}
/**
*
* FILTERS
*
*/
function validate_src( $src ) {
if ( preg_match( "/^data:/i", $src ) )
return null;
return $src;
}
/**
*
* LOAD SCRIPTS IF REQUIRED
*
*/
function wp_enqueue_scripts () {
global $wr3x_version, $wr3x_retinajs, $wr3x_retina_image, $wr3x_picturefill, $wr3x_lazysizes;
$method = get_option( "wr3x_method" );
if ( is_admin() && !get_option( "wr3x_retina_admin" ) ) {
wp_enqueue_script( 'wr3x-admin', plugins_url( '/js/admin.js', __FILE__ ), array(), $wr3x_version, false );
$nonce = array (
'wr3x_generate' => null,
'wr3x_delete' => null,
'wr3x_delete_full' => null,
'wr3x_list_all' => null,
'wr3x_replace' => null,
'wr3x_upload' => null,
'wr3x_retina_upload' => null,
'wr3x_retina_details' => null
);
foreach ( array_keys( $nonce ) as $action )
$nonce[$action] = wp_create_nonce( $action );
wp_localize_script( 'wr3x-admin', 'wr3x_admin_server', array (
'maxFileSize' => $this->get_max_filesize(),
'nonce' => $nonce,
'i18n' => array (
'Refresh' => __( "<a href='?page=wp-retina-3x&view=issues&refresh=true'>Refresh</a> this page.", 'wp-retina-3x' ),
'Wait' => __( "Wait...", 'wp-retina-3x' ),
'Nothing_to_do' => __( "Nothing to do ;)", 'wp-retina-3x' ),
'Generate' => __( "GENERATE", 'wp-retina-3x' )
)
) );
}
// Picturefill
if ( $method == "Picturefill" ) {
if ( $this->is_debug() )
wp_enqueue_script( 'wr3x-debug', plugins_url( '/js/debug.js', __FILE__ ), array(), $wr3x_version, false );
// Picturefill
if ( !get_option( "wr3x_picturefill_noscript" ) )
wp_enqueue_script( 'picturefill', plugins_url( '/js/picturefill.min.js', __FILE__ ), array(), $wr3x_picturefill, false );
// Lazysizes
if ( get_option( "wr3x_picturefill_lazysizes" ) && $this->admin->is_registered() )
wp_enqueue_script( 'lazysizes', plugins_url( '/js/lazysizes.min.js', __FILE__ ), array(), $wr3x_lazysizes, false );
return;
}
// Debug + HTML Rewrite = No JS!
if ( $this->is_debug() && $method == "HTML Rewrite" ) {
return;
}
// Debug mode, we force the devicePixelRatio to be Retina
if ( $this->is_debug() )
wp_enqueue_script( 'wr3x-debug', plugins_url( '/js/debug.js', __FILE__ ), array(), $wr3x_version, false );
// Retina-Images and HTML Rewrite both need the devicePixelRatio cookie on the server-side
if ( $method == "Retina-Images" || $method == "HTML Rewrite" )
wp_enqueue_script( 'retina-images', plugins_url( '/js/retina-cookie.js', __FILE__ ), array(), $wr3x_retina_image, false );
// Retina.js only needs itself
if ($method == "retina.js")
wp_enqueue_script( 'retinajs', plugins_url( '/js/retina.min.js', __FILE__ ), array(), $wr3x_retinajs, true );
}
}
// Used by WP Rocket (and maybe by other plugins)
function wr3x_is_registered() {
global $wr3x_core;
return $wr3x_core->admin->is_registered();
}
?>