1 <?php

     2 /**

     3  * BackPress Styles enqueue.

     4  *

     5  * These classes were refactored from the WordPress WP_Scripts and WordPress

     6  * script enqueue API.

     7  *

     8  * @package BackPress

     9  * @since r74

    10  */

    11 

    12 /**

    13  * BackPress Styles enqueue class.

    14  *

    15  * @package BackPress

    16  * @uses WP_Dependencies

    17  * @since r74

    18  */

    19 class WP_Styles extends WP_Dependencies {

    20 	var $base_url;

    21 	var $content_url;

    22 	var $default_version;

    23 	var $text_direction = 'ltr';

    24 	var $concat = '';

    25 	var $concat_version = '';

    26 	var $do_concat = false;

    27 	var $print_html = '';

    28 	var $default_dirs;

    29 

    30 	function __construct() {

    31 		do_action_ref_array( 'wp_default_styles', array(&$this) );

    32 	}

    33 

    34 	function do_item( $handle ) {

    35 		if ( !parent::do_item($handle) )

    36 			return false;

    37 

    38 		$ver = $this->registered[$handle]->ver ? $this->registered[$handle]->ver : $this->default_version;

    39 		if ( isset($this->args[$handle]) )

    40 			$ver .= '&' . $this->args[$handle];

    41 

    42 		if ( $this->do_concat ) {

    43 			if ( $this->in_default_dir($this->registered[$handle]->src) && !isset($this->registered[$handle]->extra['conditional']) && !isset($this->registered[$handle]->extra['alt']) ) {

    44 				$this->concat .= "$handle,";

    45 				$this->concat_version .= "$handle$ver";

    46 				return true;

    47 			}

    48 		}

    49 

    50 		if ( isset($this->registered[$handle]->args) )

    51 			$media = esc_attr( $this->registered[$handle]->args );

    52 		else

    53 			$media = 'all';

    54 

    55 		$href = $this->_css_href( $this->registered[$handle]->src, $ver, $handle );

    56 		$rel = isset($this->registered[$handle]->extra['alt']) && $this->registered[$handle]->extra['alt'] ? 'alternate stylesheet' : 'stylesheet';

    57 		$title = isset($this->registered[$handle]->extra['title']) ? "title='" . esc_attr( $this->registered[$handle]->extra['title'] ) . "'" : '';

    58 

    59 		$end_cond = $tag = '';

    60 		if ( isset($this->registered[$handle]->extra['conditional']) && $this->registered[$handle]->extra['conditional'] ) {

    61 			$tag .= "<!--[if {$this->registered[$handle]->extra['conditional']}]>\n";

    62 			$end_cond = "<![endif]-->\n";

    63 		}

    64 

    65 		$tag .= apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' type='text/css' media='$media' />\n", $handle );

    66 		if ( 'rtl' === $this->text_direction && isset($this->registered[$handle]->extra['rtl']) && $this->registered[$handle]->extra['rtl'] ) {

    67 			if ( is_bool( $this->registered[$handle]->extra['rtl'] ) )

    68 				$rtl_href = str_replace( '.css', '-rtl.css', $this->_css_href( $this->registered[$handle]->src , $ver, "$handle-rtl" ));

    69 			else

    70 				$rtl_href = $this->_css_href( $this->registered[$handle]->extra['rtl'], $ver, "$handle-rtl" );

    71 

    72 			$tag .= apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-rtl-css' $title href='$rtl_href' type='text/css' media='$media' />\n", $handle );

    73 		}

    74 

    75 		$tag .= $end_cond;

    76 

    77 		if ( $this->do_concat )

    78 			$this->print_html .= $tag;

    79 		else

    80 			echo $tag;

    81 

    82 		// Could do something with $this->registered[$handle]->extra here to print out extra CSS rules

    83 //		echo "<style type='text/css'>\n";

    84 //		echo "/* <![CDATA[ */\n";

    85 //		echo "/* ]]> */\n";

    86 //		echo "</style>\n";

    87 

    88 		return true;

    89 	}

    90 

    91 	function all_deps( $handles, $recursion = false, $group = false ) {

    92 		$r = parent::all_deps( $handles, $recursion );

    93 		if ( !$recursion )

    94 			$this->to_do = apply_filters( 'print_styles_array', $this->to_do );

    95 		return $r;

    96 	}

    97 

    98 	function _css_href( $src, $ver, $handle ) {

    99 		if ( !preg_match('|^https?://|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {

   100 			$src = $this->base_url . $src;

   101 		}

   102 

   103 		$src = add_query_arg('ver', $ver, $src);

   104 		$src = apply_filters( 'style_loader_src', $src, $handle );

   105 		return esc_url( $src );

   106 	}

   107 

   108 	function in_default_dir($src) {

   109 		if ( ! $this->default_dirs )

   110 			return true;

   111 

   112 		foreach ( (array) $this->default_dirs as $test ) {

   113 			if ( 0 === strpos($src, $test) )

   114 				return true;

   115 		}

   116 		return false;

   117 	}

   118 

   119 }