old_scripts = new WP_Scripts();
} else {
$this->old_scripts = $scripts;
}
// Unset all the object properties except our private copy of the scripts object.
// We have to unset everything so that the overload methods talk to $this->old_scripts->whatever
// instead of $this->whatever.
foreach ( array_keys( get_object_vars( $this ) ) as $key ) {
if ( 'old_scripts' === $key ) {
continue;
}
unset( $this->$key );
}
$this->dependency_path_mapping = new Page_Optimize_Dependency_Path_Mapping(
apply_filters( 'page_optimize_site_url', $this->base_url )
);
}
protected function has_inline_content( $handle ) {
$before_output = $this->get_data( $handle, 'before' );
if ( ! empty( $before_output ) ) {
return true;
}
$after_output = $this->get_data( $handle, 'after' );
if ( ! empty( $after_output ) ) {
return true;
}
// JavaScript translations
$has_translations = ! empty( $this->registered[ $handle ]->textdomain );
if ( $has_translations ) {
return true;
}
return false;
}
/**
* Check whether script_loader_tag filters mutate this handle's script tag.
*
* If the tag is mutated, we keep the handle standalone so core can render it.
*/
protected function script_loader_tag_changes_output( $handle, $js_url ) {
if ( ! has_filter( 'script_loader_tag' ) ) {
return false;
}
if ( function_exists( 'wp_get_script_tag' ) ) {
$probe_tag = wp_get_script_tag(
array(
'id' => "{$handle}-js",
'src' => $js_url,
)
);
} else {
$probe_tag = "\n";
}
$filtered_tag = apply_filters( 'script_loader_tag', $probe_tag, $handle, $js_url );
return $filtered_tag !== $probe_tag;
}
function do_items( $handles = false, $group = false ) {
$handles = false === $handles ? $this->queue : (array) $handles;
$javascripts = array();
$siteurl = apply_filters( 'page_optimize_site_url', $this->base_url );
$this->all_deps( $handles );
$level = 0;
$using_strict = false;
foreach ( $this->to_do as $key => $handle ) {
$script_is_strict = false;
if ( in_array( $handle, $this->done ) || ! isset( $this->registered[ $handle ] ) ) {
continue;
}
if ( 0 === $group && $this->groups[ $handle ] > 0 ) {
$this->in_footer[] = $handle;
unset( $this->to_do[ $key ] );
continue;
}
if ( ! $this->registered[ $handle ]->src ) { // Defines a group.
if ( $this->has_inline_content( $handle ) ) {
$level ++;
$javascripts[ $level ]['type'] = 'do_item';
$javascripts[ $level ]['handle'] = $handle;
$level ++;
unset( $this->to_do[ $key ] );
} else {
// if there are localized items, echo them
$this->print_extra_script( $handle );
$this->done[] = $handle;
}
continue;
}
if ( false === $group && in_array( $handle, $this->in_footer, true ) ) {
$this->in_footer = array_diff( $this->in_footer, (array) $handle );
}
$obj = $this->registered[ $handle ];
$js_url = $obj->src;
$js_url_parsed = parse_url( $js_url );
$script_type = strtolower( trim( (string) $this->get_data( $handle, 'type' ) ) );
$script_strategy = strtolower( trim( (string) $this->get_data( $handle, 'strategy' ) ) );
// Don't concat by default
$do_concat = false;
// Only try to concat static js files
if ( false !== strpos( $js_url_parsed['path'], '.js' ) ) {
$do_concat = page_optimize_should_concat_js();
} else {
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
echo sprintf( "\n\n", esc_html( $handle ), esc_html( $obj->src ) );
}
}
// Don't try to concat externally hosted scripts
$is_internal_uri = $this->dependency_path_mapping->is_internal_uri( $js_url );
if ( $do_concat && ! $is_internal_uri ) {
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
echo sprintf( "\n\n", esc_html( $handle ), esc_url( $js_url ) );
}
$do_concat = false;
}
if ( $do_concat ) {
// Resolve paths and concat scripts that exist in the filesystem
$js_realpath = $this->dependency_path_mapping->dependency_src_to_fs_path( $js_url );
if ( false === $js_realpath ) {
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
echo sprintf( "\n\n", esc_html( $handle ), esc_html( $js_realpath ) );
}
$do_concat = false;
}
}
if ( $do_concat && $this->has_inline_content( $handle ) ) {
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
echo sprintf( "\n\n", esc_html( $handle ) );
}
$do_concat = false;
}
// Module scripts are not safe to concatenate with classic scripts.
if ( $do_concat && 'module' === $script_type ) {
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
echo sprintf( "\n\n", esc_html( $handle ) );
}
$do_concat = false;
}
// Keep requested delayed scripts standalone to avoid strategy eligibility pitfalls.
if ( $do_concat && in_array( $script_strategy, array( 'defer', 'async' ), true ) ) {
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
echo sprintf( "\n\n", esc_html( $handle ), esc_html( $script_strategy ) );
}
$do_concat = false;
}
// If a script tag is mutated by script_loader_tag, preserve it via core do_item().
if ( $do_concat && $this->script_loader_tag_changes_output( $handle, $js_url ) ) {
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
echo sprintf( "\n\n", esc_html( $handle ) );
}
$do_concat = false;
}
// Skip core scripts that use Strict Mode
if ( $do_concat && ( 'react' === $handle || 'react-dom' === $handle ) ) {
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
echo sprintf( "\n\n", esc_html( $handle ) );
}
$do_concat = false;
$script_is_strict = true;
} else if ( $do_concat && preg_match_all( '/^[\',"]use strict[\',"];/Uims', file_get_contents( $js_realpath ), $matches ) ) {
// Skip third-party scripts that use Strict Mode
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
echo sprintf( "\n\n", esc_html( $handle ) );
}
$do_concat = false;
$script_is_strict = true;
} else {
$script_is_strict = false;
}
// Skip concating scripts from exclusion list
$exclude_list = page_optimize_js_exclude_list();
foreach ( $exclude_list as $exclude ) {
if ( $do_concat && $handle === $exclude ) {
$do_concat = false;
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
echo sprintf( "\n\n", esc_html( $handle ) );
}
}
}
// Allow plugins to disable concatenation of certain scripts.
if ( $do_concat && ! apply_filters( 'js_do_concat', $do_concat, $handle ) ) {
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
echo sprintf( "\n\n", esc_html( $handle ) );
}
}
$do_concat = apply_filters( 'js_do_concat', $do_concat, $handle );
if ( true === $do_concat ) {
if ( ! isset( $javascripts[ $level ] ) ) {
$javascripts[ $level ]['type'] = 'concat';
}
$javascripts[ $level ]['paths'][] = $js_url_parsed['path'];
$javascripts[ $level ]['handles'][] = $handle;
} else {
$level ++;
$javascripts[ $level ]['type'] = 'do_item';
$javascripts[ $level ]['handle'] = $handle;
$level ++;
}
unset( $this->to_do[ $key ] );
if ( $using_strict !== $script_is_strict ) {
if ( $script_is_strict ) {
$using_strict = true;
$strict_count = 0;
} else {
$using_strict = false;
}
}
if ( $script_is_strict ) {
$strict_count ++;
}
}
if ( empty( $javascripts ) ) {
return $this->done;
}
foreach ( $javascripts as $js_array ) {
if ( 'do_item' == $js_array['type'] ) {
if ( $this->do_item( $js_array['handle'], $group ) ) {
$this->done[] = $js_array['handle'];
}
} else if ( 'concat' == $js_array['type'] ) {
array_map( array( $this, 'print_extra_script' ), $js_array['handles'] );
if ( isset( $js_array['paths'] ) && count( $js_array['paths'] ) > 1 ) {
$fs_paths = array();
foreach ( $js_array['paths'] as $js_url ) {
$fs_paths[] = $this->dependency_path_mapping->uri_path_to_fs_path( $js_url );
}
$mtime = max( array_map( 'filemtime', $fs_paths ) );
if ( page_optimize_use_concat_base_dir() ) {
$path_str = implode( ',', array_map( 'page_optimize_remove_concat_base_prefix', $fs_paths ) );
} else {
$path_str = implode( ',', $js_array['paths'] );
}
$path_str = "$path_str?m=$mtime";
if ( $this->allow_gzip_compression ) {
$path_64 = base64_encode( gzcompress( $path_str ) );
if ( strlen( $path_str ) > ( strlen( $path_64 ) + 1 ) ) {
$path_str = '-' . $path_64;
}
}
$href = $siteurl . "/_static/??" . $path_str;
} elseif ( isset( $js_array['paths'] ) && is_array( $js_array['paths'] ) ) {
$href = Page_Optimize_Utils::cache_bust_mtime( $js_array['paths'][0], $siteurl );
}
$this->done = array_merge( $this->done, $js_array['handles'] );
// Print before/after scripts from wp_inline_scripts() and concatenated script tag
if ( isset( $js_array['extras']['before'] ) ) {
foreach ( $js_array['extras']['before'] as $inline_before ) {
echo $inline_before;
}
}
if ( isset( $href ) ) {
$handles = implode( ',', $js_array['handles'] );
$load_mode = page_optimize_load_mode_js();
if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
$tag = "\n";
} else {
$tag = "\n";
}
if ( is_array( $js_array['handles'] ) && count( $js_array['handles'] ) === 1 ) {
// Because we have a single script, let's apply the `script_loader_tag` filter as core does in `do_item()`.
// That way, we interfere less with plugin and theme script filtering. For example, without this filter,
// there is a case where we block the TwentyTwenty theme from adding async/defer attributes.
// https://github.com/Automattic/page-optimize/pull/44
$tag = apply_filters( 'script_loader_tag', $tag, $js_array['handles'][0], $href );
}
echo $tag;
}
if ( isset( $js_array['extras']['after'] ) ) {
foreach ( $js_array['extras']['after'] as $inline_after ) {
echo $inline_after;
}
}
}
}
do_action( 'js_concat_did_items', $javascripts );
return $this->done;
}
function __isset( $key ) {
return isset( $this->old_scripts->$key );
}
function __unset( $key ) {
unset( $this->old_scripts->$key );
}
function &__get( $key ) {
return $this->old_scripts->$key;
}
function __set( $key, $value ) {
$this->old_scripts->$key = $value;
}
}
function page_optimize_js_concat_init() {
global $wp_scripts;
$wp_scripts = new Page_Optimize_JS_Concat( $wp_scripts );
$wp_scripts->allow_gzip_compression = ALLOW_GZIP_COMPRESSION;
}
if ( ! is_admin() && ( page_optimize_should_concat_js() || page_optimize_load_mode_js() ) ) {
add_action( 'init', 'page_optimize_js_concat_init' );
}