WP_Styles::do_item( string $handle, int|false $group = false )

	public function do_item( $handle ) {
		if ( !parent::do_item($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 . '&' . $this->args[$handle] : $this->args[$handle];

		/** This filter is documented in wp-includes/script-loader.php */
		$ver = apply_filters( 'classicpress_asset_version', $ver, 'style', $handle );

		if ( $this->do_concat ) {
			if ( $this->in_default_dir($obj->src) && !isset($obj->extra['conditional']) && !isset($obj->extra['alt']) ) {
				$this->concat .= "$handle,";
				$this->concat_version .= "$handle$ver";

				$this->print_code .= $this->print_inline_style( $handle, false );

				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 ( ! $obj->src ) {
			if ( $inline_style = $this->print_inline_style( $handle, false ) ) {
				$inline_style = sprintf( "<style id='%s-inline-css' type='text/css'>\n%s\n</style>\n", esc_attr( $handle ), $inline_style );
				if ( $this->do_concat ) {
					$this->print_html .= $inline_style;
				} else {
					echo $inline_style;
				}
			}
			return true;
		}

		$href = $this->_css_href( $obj->src, $ver, $handle );
		if ( ! $href ) {
			return true;
		}

		$rel = isset($obj->extra['alt']) && $obj->extra['alt'] ? 'alternate stylesheet' : 'stylesheet';
		$title = isset($obj->extra['title']) ? "title='" . esc_attr( $obj->extra['title'] ) . "'" : '';

		/**
		 * Filters the HTML link tag of an enqueued style.
		 *
		 * @since WP-2.6.0
		 * @since WP-4.3.0 Introduced the `$href` parameter.
		 * @since WP-4.5.0 Introduced the `$media` parameter.
		 *
		 * @param string $html   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.
		 */
		$tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' type='text/css' media='$media' />\n", $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( $obj->src , $ver, "$handle-rtl" ));
			} else {
				$rtl_href = $this->_css_href( $obj->extra['rtl'], $ver, "$handle-rtl" );
			}

			/** This filter is documented in wp-includes/class.wp-styles.php */
			$rtl_tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-rtl-css' $title href='$rtl_href' type='text/css' media='$media' />\n", $handle, $rtl_href, $media );

			if ( $obj->extra['rtl'] === 'replace' ) {
				$tag = $rtl_tag;
			} else {
				$tag .= $rtl_tag;
			}
		}

		$conditional_pre = $conditional_post = '';
		if ( isset( $obj->extra['conditional'] ) && $obj->extra['conditional'] ) {
			$conditional_pre  = "<!--[if {$obj->extra['conditional']}]>\n";
			$conditional_post = "<![endif]-->\n";
		}

		if ( $this->do_concat ) {
			$this->print_html .= $conditional_pre;
			$this->print_html .= $tag;
			if ( $inline_style = $this->print_inline_style( $handle, false ) ) {
				$this->print_html .= sprintf( "<style id='%s-inline-css' type='text/css'>\n%s\n</style>\n", esc_attr( $handle ), $inline_style );
			}
			$this->print_html .= $conditional_post;
		} else {
			echo $conditional_pre;
			echo $tag;
			$this->print_inline_style( $handle );
			echo $conditional_post;
		}

		return true;
	}