266 lines
8.7 KiB
PHP
266 lines
8.7 KiB
PHP
<?php
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namespace Automattic\Jetpack_Boost\Lib\Minify;
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use WP_Styles;
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// Disable complaints about enqueuing stylesheets, as this class alters the way enqueuing them works.
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// phpcs:disable WordPress.WP.EnqueuedResources.NonEnqueuedStylesheet
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/**
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* Replacement for, and subclass of WP_Styles - used to control the way that styles are enqueued and output.
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*/
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class Concatenate_CSS extends WP_Styles {
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private $dependency_path_mapping;
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private $old_styles;
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public $allow_gzip_compression;
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public function __construct( $styles ) {
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if ( empty( $styles ) || ! ( $styles instanceof WP_Styles ) ) {
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$this->old_styles = new WP_Styles();
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} else {
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$this->old_styles = $styles;
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}
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// Unset all the object properties except our private copy of the styles object.
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// We have to unset everything so that the overload methods talk to $this->old_styles->whatever
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// instead of $this->whatever.
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foreach ( array_keys( get_object_vars( $this ) ) as $key ) {
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if ( 'old_styles' === $key ) {
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continue;
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}
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unset( $this->$key );
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}
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$this->dependency_path_mapping = new Dependency_Path_Mapping(
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/**
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* Filter the URL of the site the plugin will be concatenating CSS or JS on
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*
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* @param string $url URL of the page with CSS or JS to concatonate.
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*
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* @since 1.0.0
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*/
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apply_filters( 'page_optimize_site_url', $this->base_url )
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);
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}
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public function do_items( $handles = false, $group = false ) {
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$handles = false === $handles ? $this->queue : (array) $handles;
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$stylesheets = array();
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/**
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* Filter the URL of the site the plugin will be concatenating CSS or JS on
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*
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* @param string $url URL of the page with CSS or JS to concatonate.
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*
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* @since 1.0.0
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*/
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$siteurl = apply_filters( 'page_optimize_site_url', $this->base_url );
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$this->all_deps( $handles );
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$stylesheet_group_index = 0;
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// Merge CSS into a single file
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$concat_group = 'concat';
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// Concat group on top (first array element gets processed earlier)
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$stylesheets[ $concat_group ] = array();
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foreach ( $this->to_do as $key => $handle ) {
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$obj = $this->registered[ $handle ];
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/**
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* Filter the style source URL
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*
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* @param string $url URL of the page with CSS or JS to concatonate.
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* @param string $handle handle to CSS file.
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*
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* @since 1.0.0
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*/
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$obj->src = apply_filters( 'style_loader_src', $obj->src, $obj->handle );
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// Core is kind of broken and returns "true" for src of "colors" handle
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// http://core.trac.wordpress.org/attachment/ticket/16827/colors-hacked-fixed.diff
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// http://core.trac.wordpress.org/ticket/20729
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$css_url = $obj->src;
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if ( 'colors' === $obj->handle && true === $css_url ) {
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$css_url = wp_style_loader_src( $css_url, $obj->handle );
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}
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$css_url = jetpack_boost_enqueued_to_absolute_url( $css_url );
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$css_url_parsed = wp_parse_url( $css_url );
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$extra = $obj->extra;
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// Don't concat by default
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$do_concat = false;
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// Only try to concat static css files
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if ( str_contains( $css_url_parsed['path'], '.css' ) ) {
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$do_concat = true;
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} elseif ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
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printf( "\n<!-- No Concat CSS %s => Maybe Not Static File %s -->\n", esc_html( $handle ), esc_html( $obj->src ) );
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}
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// Don't try to concat styles which are loaded conditionally (like IE stuff)
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if ( isset( $extra['conditional'] ) ) {
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if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
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printf( "\n<!-- No Concat CSS %s => Has Conditional -->\n", esc_html( $handle ) );
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}
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$do_concat = false;
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}
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// Don't concat rtl stuff for now until concat supports it correctly
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if ( $do_concat && 'rtl' === $this->text_direction && ! empty( $extra['rtl'] ) ) {
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if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
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printf( "\n<!-- No Concat CSS %s => Is RTL -->\n", esc_html( $handle ) );
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}
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$do_concat = false;
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}
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// Don't try to concat externally hosted scripts
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$is_internal_uri = $this->dependency_path_mapping->is_internal_uri( $css_url );
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if ( $do_concat && ! $is_internal_uri ) {
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if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
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printf( "\n<!-- No Concat CSS %s => External URL: %s -->\n", esc_html( $handle ), esc_url( $css_url ) );
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}
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$do_concat = false;
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}
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if ( $do_concat ) {
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// Resolve paths and concat styles that exist in the filesystem
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$css_realpath = $this->dependency_path_mapping->dependency_src_to_fs_path( $css_url );
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if ( false === $css_realpath ) {
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if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
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printf( "\n<!-- No Concat CSS %s => Invalid Path %s -->\n", esc_html( $handle ), esc_html( $css_realpath ) );
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}
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$do_concat = false;
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}
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}
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// Skip concating CSS from exclusion list
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$exclude_list = jetpack_boost_page_optimize_css_exclude_list();
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foreach ( $exclude_list as $exclude ) {
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if ( $do_concat && $handle === $exclude ) {
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$do_concat = false;
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if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
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printf( "\n<!-- No Concat CSS %s => Excluded option -->\n", esc_html( $handle ) );
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}
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}
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}
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/**
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* Filter that allows plugins to disable concatenation of certain stylesheets.
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*
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* @param bool $do_concat if true, then perform concatenation
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* @param string $handle handle to CSS file
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*
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* @since 1.0.0
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*/
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if ( $do_concat && ! apply_filters( 'css_do_concat', $do_concat, $handle ) ) {
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if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
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printf( "\n<!-- No Concat CSS %s => Filtered `false` -->\n", esc_html( $handle ) );
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}
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}
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/**
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* Filter that allows plugins to disable concatenation of certain stylesheets.
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*
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* @param bool $do_concat if true, then perform concatenation
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* @param string $handle handle to CSS file
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*
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* @since 1.0.0
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*/
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$do_concat = apply_filters( 'css_do_concat', $do_concat, $handle );
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if ( true === $do_concat ) {
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$media = $obj->args;
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if ( empty( $media ) ) {
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$media = 'all';
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}
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$stylesheets[ $concat_group ][ $media ][ $handle ] = $css_url_parsed['path'];
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$this->done[] = $handle;
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} else {
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++$stylesheet_group_index;
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$stylesheets[ $stylesheet_group_index ]['noconcat'][] = $handle;
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++$stylesheet_group_index;
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}
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unset( $this->to_do[ $key ] );
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}
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foreach ( $stylesheets as $_idx => $stylesheets_group ) {
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foreach ( $stylesheets_group as $media => $css ) {
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if ( 'noconcat' === $media ) {
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foreach ( $css as $handle ) {
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if ( $this->do_item( $handle, $group ) ) {
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$this->done[] = $handle;
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}
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}
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continue;
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} elseif ( count( $css ) > 1 ) {
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$file_name = jetpack_boost_page_optimize_generate_concat_path( $css, $this->dependency_path_mapping );
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if ( get_site_option( 'jetpack_boost_static_minification' ) ) {
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$href = jetpack_boost_get_minify_url( $file_name . '.min.css' );
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} else {
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$href = $siteurl . jetpack_boost_get_static_prefix() . '??' . $file_name;
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}
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} else {
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$href = jetpack_boost_page_optimize_cache_bust_mtime( current( $css ), $siteurl );
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}
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$handles = array_keys( $css );
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$css_id = sanitize_title_with_dashes( $media ) . '-css-' . md5( $href );
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if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
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$style_tag = "<link data-handles='" . esc_attr( implode( ',', $handles ) ) . "' rel='stylesheet' id='$css_id' href='$href' type='text/css' media='$media' />";
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} else {
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$style_tag = "<link rel='stylesheet' id='$css_id' href='$href' type='text/css' media='$media' />";
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}
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/**
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* Filter the style loader HTML tag for page optimize.
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*
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* @param string $style_tag style loader tag
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* @param array $handles handles of CSS files
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* @param string $href link to CSS file
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* @param string $media media attribute of the link.
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*
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* @since 1.0.0
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*/
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$style_tag = apply_filters( 'page_optimize_style_loader_tag', $style_tag, $handles, $href, $media );
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/**
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* Filter the stylesheet tag. For example: making it deferred when using Critical CSS.
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*
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* @param string $style_tag stylesheet tag
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* @param array $handles handles of CSS files
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* @param string $href link to CSS file
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* @param string $media media attribute of the link.
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*
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* @since 1.0.0
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*/
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$style_tag = apply_filters( 'style_loader_tag', $style_tag, implode( ',', $handles ), $href, $media );
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// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
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echo $style_tag . "\n";
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array_map( array( $this, 'print_inline_style' ), array_keys( $css ) );
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}
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}
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return $this->done;
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}
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public function __isset( $key ) {
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return isset( $this->old_styles->$key );
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}
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public function __unset( $key ) {
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unset( $this->old_styles->$key );
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}
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public function &__get( $key ) {
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return $this->old_styles->$key;
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}
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public function __set( $key, $value ) {
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$this->old_styles->$key = $value;
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}
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}
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