Wordpress 3.0
[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 $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                 if ( null === $this->registered[$handle]->ver )
39                         $ver = '';
40                 else
41                         $ver = $this->registered[$handle]->ver ? $this->registered[$handle]->ver : $this->default_version;
42
43                 if ( isset($this->args[$handle]) )
44                         $ver = $ver ? $ver . '&amp;' . $this->args[$handle] : $this->args[$handle];
45
46                 if ( $this->do_concat ) {
47                         if ( $this->in_default_dir($this->registered[$handle]->src) && !isset($this->registered[$handle]->extra['conditional']) && !isset($this->registered[$handle]->extra['alt']) ) {
48                                 $this->concat .= "$handle,";
49                                 $this->concat_version .= "$handle$ver";
50                                 return true;
51                         }
52                 }
53
54                 if ( isset($this->registered[$handle]->args) )
55                         $media = esc_attr( $this->registered[$handle]->args );
56                 else
57                         $media = 'all';
58
59                 $href = $this->_css_href( $this->registered[$handle]->src, $ver, $handle );
60                 $rel = isset($this->registered[$handle]->extra['alt']) && $this->registered[$handle]->extra['alt'] ? 'alternate stylesheet' : 'stylesheet';
61                 $title = isset($this->registered[$handle]->extra['title']) ? "title='" . esc_attr( $this->registered[$handle]->extra['title'] ) . "'" : '';
62
63                 $end_cond = $tag = '';
64                 if ( isset($this->registered[$handle]->extra['conditional']) && $this->registered[$handle]->extra['conditional'] ) {
65                         $tag .= "<!--[if {$this->registered[$handle]->extra['conditional']}]>\n";
66                         $end_cond = "<![endif]-->\n";
67                 }
68
69                 $tag .= apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' type='text/css' media='$media' />\n", $handle );
70                 if ( 'rtl' === $this->text_direction && isset($this->registered[$handle]->extra['rtl']) && $this->registered[$handle]->extra['rtl'] ) {
71                         if ( is_bool( $this->registered[$handle]->extra['rtl'] ) ) {
72                                 $suffix = isset( $this->registered[$handle]->extra['suffix'] ) ? $this->registered[$handle]->extra['suffix'] : '';
73                                 $rtl_href = str_replace( "{$suffix}.css", "-rtl{$suffix}.css", $this->_css_href( $this->registered[$handle]->src , $ver, "$handle-rtl" ));
74                         } else {
75                                 $rtl_href = $this->_css_href( $this->registered[$handle]->extra['rtl'], $ver, "$handle-rtl" );
76                         }
77
78                         $tag .= apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-rtl-css' $title href='$rtl_href' type='text/css' media='$media' />\n", $handle );
79                 }
80
81                 $tag .= $end_cond;
82
83                 if ( $this->do_concat )
84                         $this->print_html .= $tag;
85                 else
86                         echo $tag;
87
88                 // Could do something with $this->registered[$handle]->extra here to print out extra CSS rules
89 //              echo "<style type='text/css'>\n";
90 //              echo "/* <![CDATA[ */\n";
91 //              echo "/* ]]> */\n";
92 //              echo "</style>\n";
93
94                 return true;
95         }
96
97         function all_deps( $handles, $recursion = false, $group = false ) {
98                 $r = parent::all_deps( $handles, $recursion );
99                 if ( !$recursion )
100                         $this->to_do = apply_filters( 'print_styles_array', $this->to_do );
101                 return $r;
102         }
103
104         function _css_href( $src, $ver, $handle ) {
105                 if ( !is_bool($src) && !preg_match('|^https?://|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {
106                         $src = $this->base_url . $src;
107                 }
108
109                 if ( !empty($ver) )
110                         $src = add_query_arg('ver', $ver, $src);
111                 $src = apply_filters( 'style_loader_src', $src, $handle );
112                 return esc_url( $src );
113         }
114
115         function in_default_dir($src) {
116                 if ( ! $this->default_dirs )
117                         return true;
118
119                 foreach ( (array) $this->default_dirs as $test ) {
120                         if ( 0 === strpos($src, $test) )
121                                 return true;
122                 }
123                 return false;
124         }
125
126 }