diff -r 7b1b88e27a20 -r 48c4eec2b7e6 wp/wp-includes/class-wp-styles.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/class-wp-styles.php	Fri Sep 05 18:40:08 2025 +0200
@@ -0,0 +1,464 @@
+<?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 ( null === $obj->ver ) {
+			$ver = '';
+		} else {
+			$ver = $obj->ver ? $obj->ver : $this->default_version;
+		}
+
+		if ( isset( $this->args[ $handle ] ) ) {
+			$ver = $ver ? $ver . '&amp;' . $this->args[ $handle ] : $this->args[ $handle ];
+		}
+
+		$src         = $obj->src;
+		$cond_before = '';
+		$cond_after  = '';
+		$conditional = isset( $obj->extra['conditional'] ) ? $obj->extra['conditional'] : '';
+
+		if ( $conditional ) {
+			$cond_before = "<!--[if {$conditional}]>\n";
+			$cond_after  = "<![endif]-->\n";
+		}
+
+		$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 ) && ! $conditional && ! isset( $obj->extra['alt'] ) ) {
+				$this->concat         .= "$handle,";
+				$this->concat_version .= "$handle$ver";
+
+				$this->print_code .= $inline_style;
+
+				return true;
+			}
+		}
+
+		if ( isset( $obj->args ) ) {
+			$media = esc_attr( $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'] ) ? sprintf( " title='%s'", esc_attr( $obj->extra['title'] ) ) : '';
+
+		$tag = sprintf(
+			"<link rel='%s' id='%s-css'%s href='%s'%s media='%s' />\n",
+			$rel,
+			$handle,
+			$title,
+			$href,
+			$this->type_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,
+				$handle,
+				$title,
+				$rtl_href,
+				$this->type_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 .= $cond_before;
+			$this->print_html .= $tag;
+			if ( $inline_style_tag ) {
+				$this->print_html .= $inline_style_tag;
+			}
+			$this->print_html .= $cond_after;
+		} else {
+			echo $cond_before;
+			echo $tag;
+			$this->print_inline_style( $handle );
+			echo $cond_after;
+		}
+
+		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 ) ) {
+			return false;
+		}
+
+		$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;
+	}
+
+	/**
+	 * 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 ) {
+		$r = 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 $r;
+	}
+
+	/**
+	 * 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     = '';
+	}
+}