ru-se.com

class.wp-styles.php (10876B)

---

 <?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 current 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 $this WP_Styles instance (passed by reference).
 		 */
 		do_action_ref_array( 'wp_default_styles', array( &$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   $echo   Optional. Whether to echo the inline style
 	 *                       instead of just returning it. Default true.
 	 * @return string|bool False if no data exists, inline styles if `$echo` is true,
 	 *                     true otherwise.
 	 */
 	public function print_inline_style( $handle, $echo = true ) {
 		$output = $this->get_data( $handle, 'after' );
 
 		if ( empty( $output ) ) {
 			return false;
 		}
 
 		$output = implode( "\n", $output );
 
 		if ( ! $echo ) {
 			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 && 0 === strpos( $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 ( 0 === strpos( $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     = '';
 	}
 }