Wordpress 2.7.1
[autoinstalls/wordpress.git] / wp-includes / class.wp-styles.php
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 $default_version;
22         var $text_direction = 'ltr';
23
24         function __construct() {
25                 do_action_ref_array( 'wp_default_styles', array(&$this) );
26         }
27
28         function do_item( $handle ) {
29                 if ( !parent::do_item($handle) )
30                         return false;
31
32                 $ver = $this->registered[$handle]->ver ? $this->registered[$handle]->ver : $this->default_version;
33                 if ( isset($this->args[$handle]) )
34                         $ver .= '&amp;' . $this->args[$handle];
35
36                 if ( isset($this->registered[$handle]->args) )
37                         $media = attribute_escape( $this->registered[$handle]->args );
38                 else
39                         $media = 'all';
40
41                 $href = $this->_css_href( $this->registered[$handle]->src, $ver, $handle );
42
43                 $end_cond = '';
44                 if ( isset($this->registered[$handle]->extra['conditional']) && $this->registered[$handle]->extra['conditional'] ) {
45                         echo "<!--[if {$this->registered[$handle]->extra['conditional']}]>\n";
46                         $end_cond = "<![endif]-->\n";
47                 }
48
49                 echo apply_filters( 'style_loader_tag', "<link rel='stylesheet' href='$href' type='text/css' media='$media' />\n", $handle );
50                 if ( 'rtl' === $this->text_direction && isset($this->registered[$handle]->extra['rtl']) && $this->registered[$handle]->extra['rtl'] ) {
51                         if ( is_bool( $this->registered[$handle]->extra['rtl'] ) )
52                                 $rtl_href = str_replace( '.css', '-rtl.css', $href );
53                         else
54                                 $rtl_href = $this->_css_href( $this->registered[$handle]->extra['rtl'], $ver, "$handle-rtl" );
55
56                         echo apply_filters( 'style_loader_tag', "<link rel='stylesheet' href='$rtl_href' type='text/css' media='$media' />\n", $handle );
57                 }
58
59                 echo $end_cond;
60
61                 // Could do something with $this->registered[$handle]->extra here to print out extra CSS rules
62 //              echo "<style type='text/css'>\n";
63 //              echo "/* <![CDATA[ */\n";
64 //              echo "/* ]]> */\n";
65 //              echo "</style>\n";
66
67                 return true;
68         }
69
70         function all_deps( $handles, $recursion = false ) {
71                 $r = parent::all_deps( $handles, $recursion );
72                 if ( !$recursion )
73                         $this->to_do = apply_filters( 'print_styles_array', $this->to_do );
74                 return $r;
75         }
76
77         function _css_href( $src, $ver, $handle ) {
78                 if ( !preg_match('|^https?://|', $src) && !preg_match('|^' . preg_quote(WP_CONTENT_URL) . '|', $src) ) {
79                         $src = $this->base_url . $src;
80                 }
81
82                 $src = add_query_arg('ver', $ver, $src);
83                 $src = apply_filters( 'style_loader_src', $src, $handle );
84                 return clean_url( $src );
85         }
86
87 }