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Editing: class-wp-styles.php
<?php /** * Dependencies API: WP_Styles class * * @since 2.6.0 * * @package WordPress * @subpackage Dependencies */ /** * Core class used to register styles. * * @since 2.6.0 * * @see WP_Dependencies */ class WP_Styles extends WP_Dependencies { /** * Base URL for styles. * * Full URL with trailing slash. * * @since 2.6.0 * @var string */ public $base_url; /** * URL of the content directory. * * @since 2.8.0 * @var string */ public $content_url; /** * Default version string for stylesheets. * * @since 2.6.0 * @var string */ public $default_version; /** * The current text direction. * * @since 2.6.0 * @var string */ public $text_direction = 'ltr'; /** * Holds a list of style handles which will be concatenated. * * @since 2.8.0 * @var string */ public $concat = ''; /** * Holds a string which contains style handles and their version. * * @since 2.8.0 * @deprecated 3.4.0 * @var string */ public $concat_version = ''; /** * Whether to perform concatenation. * * @since 2.8.0 * @var bool */ public $do_concat = false; /** * Holds HTML markup of styles and additional data if concatenation * is enabled. * * @since 2.8.0 * @var string */ public $print_html = ''; /** * Holds inline styles if concatenation is enabled. * * @since 3.3.0 * @var string */ public $print_code = ''; /** * List of default directories. * * @since 2.8.0 * @var array */ public $default_dirs; /** * Holds a string which contains the type attribute for style tag. * * If the active theme does not declare HTML5 support for 'style', * then it initializes as `type='text/css'`. * * @since 5.3.0 * @var string */ private $type_attr = ''; /** * Constructor. * * @since 2.6.0 */ public function __construct() { if ( function_exists( 'is_admin' ) && ! is_admin() && function_exists( 'current_theme_supports' ) && ! current_theme_supports( 'html5', 'style' ) ) { $this->type_attr = " type='text/css'"; } /** * Fires when the WP_Styles instance is initialized. * * @since 2.6.0 * * @param WP_Styles $wp_styles WP_Styles instance (passed by reference). */ do_action_ref_array( 'wp_default_styles', array( &$this ) ); } /** * Processes a style dependency. * * @since 2.6.0 * @since 5.5.0 Added the `$group` parameter. * * @see WP_Dependencies::do_item() * * @param string $handle The style's registered handle. * @param int|false $group Optional. Group level: level (int), no groups (false). * Default false. * @return bool True on success, false on failure. */ public function do_item( $handle, $group = false ) { if ( ! parent::do_item( $handle ) ) { return false; } $obj = $this->registered[ $handle ]; if ( $obj->extra['conditional'] ?? false ) { return false; } if ( null === $obj->ver ) { $ver = ''; } else { $ver = $obj->ver ? $obj->ver : $this->default_version; } if ( isset( $this->args[ $handle ] ) ) { $ver = $ver ? $ver . '&' . $this->args[ $handle ] : $this->args[ $handle ]; } $src = $obj->src; $inline_style = $this->print_inline_style( $handle, false ); if ( $inline_style ) { $inline_style_tag = sprintf( "<style id='%s-inline-css'%s>\n%s\n</style>\n", esc_attr( $handle ), $this->type_attr, $inline_style ); } else { $inline_style_tag = ''; } if ( $this->do_concat ) { if ( $this->in_default_dir( $src ) && ! isset( $obj->extra['alt'] ) ) { $this->concat .= "$handle,"; $this->concat_version .= "$handle$ver"; $this->print_code .= $inline_style; return true; } } if ( isset( $obj->args ) ) { $media = $obj->args; } else { $media = 'all'; } // A single item may alias a set of items, by having dependencies, but no source. if ( ! $src ) { if ( $inline_style_tag ) { if ( $this->do_concat ) { $this->print_html .= $inline_style_tag; } else { echo $inline_style_tag; } } return true; } $href = $this->_css_href( $src, $ver, $handle ); if ( ! $href ) { return true; } $rel = isset( $obj->extra['alt'] ) && $obj->extra['alt'] ? 'alternate stylesheet' : 'stylesheet'; $title = isset( $obj->extra['title'] ) ? $obj->extra['title'] : ''; $tag = sprintf( "<link rel='%s' id='%s-css'%s href='%s'%s media='%s' />\n", $rel, esc_attr( $handle ), $title ? sprintf( " title='%s'", esc_attr( $title ) ) : '', $href, $this->type_attr, esc_attr( $media ) ); /** * Filters the HTML link tag of an enqueued style. * * @since 2.6.0 * @since 4.3.0 Introduced the `$href` parameter. * @since 4.5.0 Introduced the `$media` parameter. * * @param string $tag The link tag for the enqueued style. * @param string $handle The style's registered handle. * @param string $href The stylesheet's source URL. * @param string $media The stylesheet's media attribute. */ $tag = apply_filters( 'style_loader_tag', $tag, $handle, $href, $media ); if ( 'rtl' === $this->text_direction && isset( $obj->extra['rtl'] ) && $obj->extra['rtl'] ) { if ( is_bool( $obj->extra['rtl'] ) || 'replace' === $obj->extra['rtl'] ) { $suffix = isset( $obj->extra['suffix'] ) ? $obj->extra['suffix'] : ''; $rtl_href = str_replace( "{$suffix}.css", "-rtl{$suffix}.css", $this->_css_href( $src, $ver, "$handle-rtl" ) ); } else { $rtl_href = $this->_css_href( $obj->extra['rtl'], $ver, "$handle-rtl" ); } $rtl_tag = sprintf( "<link rel='%s' id='%s-rtl-css'%s href='%s'%s media='%s' />\n", $rel, esc_attr( $handle ), $title ? sprintf( " title='%s'", esc_attr( $title ) ) : '', $rtl_href, $this->type_attr, esc_attr( $media ) ); /** This filter is documented in wp-includes/class-wp-styles.php */ $rtl_tag = apply_filters( 'style_loader_tag', $rtl_tag, $handle, $rtl_href, $media ); if ( 'replace' === $obj->extra['rtl'] ) { $tag = $rtl_tag; } else { $tag .= $rtl_tag; } } if ( $this->do_concat ) { $this->print_html .= $tag; if ( $inline_style_tag ) { $this->print_html .= $inline_style_tag; } } else { echo $tag; $this->print_inline_style( $handle ); } return true; } /** * Adds extra CSS styles to a registered stylesheet. * * @since 3.3.0 * * @param string $handle The style's registered handle. * @param string $code String containing the CSS styles to be added. * @return bool True on success, false on failure. */ public function add_inline_style( $handle, $code ) { if ( ! $code ) { return false; } $after = $this->get_data( $handle, 'after' ); if ( ! $after ) { $after = array(); } $after[] = $code; return $this->add_data( $handle, 'after', $after ); } /** * Prints extra CSS styles of a registered stylesheet. * * @since 3.3.0 * * @param string $handle The style's registered handle. * @param bool $display Optional. Whether to print the inline style * instead of just returning it. Default true. * @return string|bool False if no data exists, inline styles if `$display` is true, * true otherwise. */ public function print_inline_style( $handle, $display = true ) { $output = $this->get_data( $handle, 'after' ); if ( empty( $output ) || ! is_array( $output ) ) { return false; } if ( ! $this->do_concat ) { // Obtain the original `src` for a stylesheet possibly inlined by wp_maybe_inline_styles(). $inlined_src = $this->get_data( $handle, 'inlined_src' ); // If there's only one `after` inline style, and that inline style had been inlined, then use the $inlined_src // as the sourceURL. Otherwise, if there is more than one inline `after` style associated with the handle, // then resort to using the handle to construct the sourceURL since there isn't a single source. if ( count( $output ) === 1 && is_string( $inlined_src ) && strlen( $inlined_src ) > 0 ) { $source_url = esc_url_raw( $inlined_src ); } else { $source_url = rawurlencode( "{$handle}-inline-css" ); } $output[] = sprintf( '/*# sourceURL=%s */', $source_url ); } $output = implode( "\n", $output ); if ( ! $display ) { return $output; } printf( "<style id='%s-inline-css'%s>\n%s\n</style>\n", esc_attr( $handle ), $this->type_attr, $output ); return true; } /** * Overrides the add_data method from WP_Dependencies, to allow unsetting dependencies for conditional styles. * * @since 6.9.0 * * @param string $handle Name of the item. Should be unique. * @param string $key The data key. * @param mixed $value The data value. * @return bool True on success, false on failure. */ public function add_data( $handle, $key, $value ) { if ( ! isset( $this->registered[ $handle ] ) ) { return false; } if ( 'conditional' === $key ) { $this->registered[ $handle ]->deps = array(); } return parent::add_data( $handle, $key, $value ); } /** * Determines style dependencies. * * @since 2.6.0 * * @see WP_Dependencies::all_deps() * * @param string|string[] $handles Item handle (string) or item handles (array of strings). * @param bool $recursion Optional. Internal flag that function is calling itself. * Default false. * @param int|false $group Optional. Group level: level (int), no groups (false). * Default false. * @return bool True on success, false on failure. */ public function all_deps( $handles, $recursion = false, $group = false ) { $result = parent::all_deps( $handles, $recursion, $group ); if ( ! $recursion ) { /** * Filters the array of enqueued styles before processing for output. * * @since 2.6.0 * * @param string[] $to_do The list of enqueued style handles about to be processed. */ $this->to_do = apply_filters( 'print_styles_array', $this->to_do ); } return $result; } /** * Generates an enqueued style's fully-qualified URL. * * @since 2.6.0 * * @param string $src The source of the enqueued style. * @param string $ver The version of the enqueued style. * @param string $handle The style's registered handle. * @return string Style's fully-qualified URL. */ public function _css_href( $src, $ver, $handle ) { if ( ! is_bool( $src ) && ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->content_url && str_starts_with( $src, $this->content_url ) ) ) { $src = $this->base_url . $src; } if ( ! empty( $ver ) ) { $src = add_query_arg( 'ver', $ver, $src ); } /** * Filters an enqueued style's fully-qualified URL. * * @since 2.6.0 * * @param string $src The source URL of the enqueued style. * @param string $handle The style's registered handle. */ $src = apply_filters( 'style_loader_src', $src, $handle ); return esc_url( $src ); } /** * Whether a handle's source is in a default directory. * * @since 2.8.0 * * @param string $src The source of the enqueued style. * @return bool True if found, false if not. */ public function in_default_dir( $src ) { if ( ! $this->default_dirs ) { return true; } foreach ( (array) $this->default_dirs as $test ) { if ( str_starts_with( $src, $test ) ) { return true; } } return false; } /** * Processes items and dependencies for the footer group. * * HTML 5 allows styles in the body, grab late enqueued items and output them in the footer. * * @since 3.3.0 * * @see WP_Dependencies::do_items() * * @return string[] Handles of items that have been processed. */ public function do_footer_items() { $this->do_items( false, 1 ); return $this->done; } /** * Resets class properties. * * @since 3.3.0 */ public function reset() { $this->do_concat = false; $this->concat = ''; $this->concat_version = ''; $this->print_html = ''; } /** * Gets a style-specific dependency warning message. * * @since 6.9.1 * * @param string $handle Style handle with missing dependencies. * @param string[] $missing_dependency_handles Missing dependency handles. * @return string Formatted, localized warning message. */ protected function get_dependency_warning_message( $handle, $missing_dependency_handles ) { return sprintf( /* translators: 1: Style handle, 2: List of missing dependency handles. */ __( 'The style with the handle "%1$s" was enqueued with dependencies that are not registered: %2$s.' ), $handle, implode( wp_get_list_item_separator(), $missing_dependency_handles ) ); } }
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