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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>PoweredCache Hooks: Source: classes/Optimizer/CSS.php</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
<link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css">
</head>
<body>
<div id="main">
<h1 class="page-title">Source: classes/Optimizer/CSS.php</h1>
<section>
<article>
<pre class="prettyprint source linenums"><code><?php
/**
* CSS contact
*
* @package PoweredCache\Optimizer
*/
//phpcs:disable Squiz.Commenting.VariableComment.Missing
//phpcs:disable Generic.Commenting.DocComment.MissingShort
//phpcs:disable Squiz.Commenting.FunctionComment.MissingParamName
//phpcs:disable Squiz.Commenting.FunctionComment.MissingParamTag
namespace PoweredCache\Optimizer;
use PoweredCache\CDN;
use \WP_Styles as WP_Styles;
/**
* Class CSS
*/
class CSS extends WP_Styles {
private $old_styles;
public $allow_gzip_compression;
public $do_minify;
public $enable_cdn;
/**
* CSS constructor.
*
* @param object $styles WP_Styles
*/
public function __construct( $styles ) {
if ( empty( $styles ) || ! ( $styles instanceof WP_Styles ) ) {
$this->old_styles = new WP_Styles();
} else {
$this->old_styles = $styles;
}
// Unset all the object properties except our private copy of the styles object.
// We have to unset everything so that the overload methods talk to $this->old_styles->whatever
// instead of $this->whatever.
foreach ( array_keys( get_object_vars( $this ) ) as $key ) {
if ( 'old_styles' === $key ) {
continue;
}
unset( $this->$key );
}
}
/**
* Prep items for concat
*
* @param bool $handles CSS handler
* @param bool $group CSS group
*
* @return string[]
*/
public function do_items( $handles = false, $group = false ) {
$abspath = wp_normalize_path( ABSPATH );
$handles = false === $handles ? $this->queue : (array) $handles;
$stylesheets = array();
/**
* Filters site url
*
* @hook powered_cache_fo_site_url
*
* @param {string} $base_url Site URL.
*
* @return {string} New value.
* @since 2.0
*/
$siteurl = apply_filters( 'powered_cache_fo_site_url', $this->base_url );
$this->all_deps( $handles );
$stylesheet_group_index = 0;
foreach ( $this->to_do as $key => $handle ) {
$obj = $this->registered[ $handle ];
$obj->src = apply_filters( 'style_loader_src', $obj->src, $obj->handle );
// Core is kind of broken and returns "true" for src of "colors" handle
// http://core.trac.wordpress.org/attachment/ticket/16827/colors-hacked-fixed.diff
// http://core.trac.wordpress.org/ticket/20729
$css_url = $obj->src;
if ( 'colors' === $obj->handle && true === $css_url ) {
$css_url = wp_style_loader_src( $css_url, $obj->handle );
}
$css_url_parsed = wp_parse_url( $obj->src );
$extra = $obj->extra;
// Don't concat by default
$do_concat = false;
// Only try to concat static css files
if ( false !== strpos( $css_url_parsed['path'], '.css' ) ) {
$do_concat = true;
}
// Don't try to concat styles which are loaded conditionally (like IE stuff)
if ( isset( $extra['conditional'] ) ) {
$do_concat = false;
}
// Don't concat rtl stuff for now until concat supports it correctly
if ( 'rtl' === $this->text_direction && ! empty( $extra['rtl'] ) ) {
$do_concat = false;
}
// Don't try to concat externally hosted scripts
$is_internal_url = Helper::is_internal_url( $css_url, $siteurl );
if ( ! $is_internal_url ) {
$do_concat = false;
}
// Concat and canonicalize the paths only for
// existing scripts that aren't outside $abspath
$css_realpath = Helper::realpath( $css_url, $siteurl );
if ( ! $css_realpath || 0 !== strpos( $css_realpath, $abspath ) ) {
$do_concat = false;
} else {
$css_url_parsed['path'] = substr( $css_realpath, strlen( $abspath ) - 1 );
}
if ( Helper::is_excluded_css( $css_url ) ) {
$do_concat = false;
}
/**
* Allow plugins to disable concatenation of certain stylesheets.
*
* @hook powered_cache_fo_css_do_concat
*
* @param {boolean} $do_concat Contact status.
* @param {string} $handle Handle of registered CSS item.
* @param {string} $css_url CSS Url. @since 3.2.1
*
* @return {boolean} New value.
* @since 2.0
*/
$do_concat = apply_filters( 'powered_cache_fo_css_do_concat', $do_concat, $handle, $css_url );
if ( true === $do_concat ) {
$media = $obj->args;
if ( empty( $media ) ) {
$media = 'all';
}
if ( ! isset( $stylesheets[ $stylesheet_group_index ] ) || ( isset( $stylesheets[ $stylesheet_group_index ] ) && ! is_array( $stylesheets[ $stylesheet_group_index ] ) ) ) {
$stylesheets[ $stylesheet_group_index ] = array();
}
$stylesheets[ $stylesheet_group_index ][ $media ][ $handle ] = $css_url_parsed['path'];
$this->done[] = $handle;
} else {
$stylesheet_group_index ++;
$stylesheets[ $stylesheet_group_index ]['noconcat'][] = $handle;
$stylesheet_group_index ++;
}
unset( $this->to_do[ $key ] );
}
foreach ( $stylesheets as $idx => $stylesheets_group ) {
foreach ( $stylesheets_group as $media => $css ) {
if ( 'noconcat' === $media ) {
foreach ( $css as $handle ) {
if ( $this->do_item( $handle, $group ) ) {
$this->done[] = $handle;
}
}
continue;
} elseif ( count( $css ) > 1 ) {
$paths = array_map(
function ( $url ) use ( $abspath ) {
return $abspath . $url;
},
$css
);
$mtime = max( array_map( 'filemtime', $paths ) );
$path_str = implode( ',', $css ) . "?m={$mtime}";
if ( $this->allow_gzip_compression ) {
$path_64 = base64_encode( gzcompress( $path_str ) ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
if ( strlen( $path_str ) > ( strlen( $path_64 ) + 1 ) ) {
$path_str = '-' . $path_64;
}
}
$href = Helper::get_optimized_url( $path_str, $this->do_minify );
} else {
if ( $this->do_minify ) {
$href = Helper::get_optimized_url( current( $css ), $this->do_minify );
} else {
$href = $this->cache_bust_mtime( $siteurl . current( $css ), $siteurl );
}
}
$handles = array_keys( $css );
$css_tag = "<link rel='stylesheet' id='$media-css-$idx' href='$href' type='text/css' media='$media' />\n"; // phpcs:ignore WordPress.WP.EnqueuedResources.NonEnqueuedStylesheet
/**
* Filters combined CSS tag.
*
* @hook powered_cache_fo_style_loader_tag
*
* @param {string} $css_tag CSS tag.
* @param {array} $handles The list of CSS handles.
* @param {string} $href CSS URL.
* @param {string} $media Media type.
*
* @return {string} New value.
* @since 2.0
*/
echo apply_filters( 'powered_cache_fo_style_loader_tag', $css_tag, $handles, $href, $media ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
array_map( array( $this, 'print_inline_style' ), array_keys( $css ) );
}
}
return $this->done;
}
/**
* Bust cache
*
* @param string $url CSS URL
* @param string $siteurl Site URL
*
* @return string
*/
public function cache_bust_mtime( $url, $siteurl ) {
if ( strpos( $url, '?m=' ) ) {
return $url;
}
$parts = wp_parse_url( $url );
if ( ! isset( $parts['path'] ) || empty( $parts['path'] ) ) {
return $url;
}
$file = Helper::realpath( $url, $siteurl );
$mtime = false;
if ( file_exists( $file ) ) {
$mtime = filemtime( $file );
}
if ( ! $mtime ) {
return $url;
}
if ( false === strpos( $url, '?' ) ) {
$q = '';
} else {
list( $url, $q ) = explode( '?', $url, 2 );
if ( strlen( $q ) ) {
$q = '&amp;' . $q;
}
}
return "$url?m={$mtime}g{$q}";
}
/**
* @param $key
*
* @return bool
*/
public function __isset( $key ) {
return isset( $this->old_styles->$key );
}
/**
* @param $key
*/
public function __unset( $key ) {
unset( $this->old_styles->$key );
}
/**
* @param $key
*
* @return mixed
*/
public function &__get( $key ) {
return $this->old_styles->$key;
}
/**
* @param $key
* @param $value
*/
public function __set( $key, $value ) {
$this->old_styles->$key = $value;
}
}
</code></pre>
</article>
</section>
</div>
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