Wordpress 2.9.2-scripts
[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                 $ver = $this->registered[$handle]->ver ? $this->registered[$handle]->ver : $this->default_version;
39                 if ( isset($this->args[$handle]) )
40                         $ver .= '&amp;' . $this->args[$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 }