Wordpress 3.7
[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 $print_code = '';
29         var $default_dirs;
30
31         function __construct() {
32                 do_action_ref_array( 'wp_default_styles', array(&$this) );
33         }
34
35         function do_item( $handle ) {
36                 if ( !parent::do_item($handle) )
37                         return false;
38
39                 $obj = $this->registered[$handle];
40                 if ( null === $obj->ver )
41                         $ver = '';
42                 else
43                         $ver = $obj->ver ? $obj->ver : $this->default_version;
44
45                 if ( isset($this->args[$handle]) )
46                         $ver = $ver ? $ver . '&amp;' . $this->args[$handle] : $this->args[$handle];
47
48                 if ( $this->do_concat ) {
49                         if ( $this->in_default_dir($obj->src) && !isset($obj->extra['conditional']) && !isset($obj->extra['alt']) ) {
50                                 $this->concat .= "$handle,";
51                                 $this->concat_version .= "$handle$ver";
52
53                                 $this->print_code .= $this->print_inline_style( $handle, false );
54
55                                 return true;
56                         }
57                 }
58
59                 if ( isset($obj->args) )
60                         $media = esc_attr( $obj->args );
61                 else
62                         $media = 'all';
63
64                 $href = $this->_css_href( $obj->src, $ver, $handle );
65                 $rel = isset($obj->extra['alt']) && $obj->extra['alt'] ? 'alternate stylesheet' : 'stylesheet';
66                 $title = isset($obj->extra['title']) ? "title='" . esc_attr( $obj->extra['title'] ) . "'" : '';
67
68                 $end_cond = $tag = '';
69                 if ( isset($obj->extra['conditional']) && $obj->extra['conditional'] ) {
70                         $tag .= "<!--[if {$obj->extra['conditional']}]>\n";
71                         $end_cond = "<![endif]-->\n";
72                 }
73
74                 $tag .= apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' type='text/css' media='$media' />\n", $handle );
75                 if ( 'rtl' === $this->text_direction && isset($obj->extra['rtl']) && $obj->extra['rtl'] ) {
76                         if ( is_bool( $obj->extra['rtl'] ) ) {
77                                 $suffix = isset( $obj->extra['suffix'] ) ? $obj->extra['suffix'] : '';
78                                 $rtl_href = str_replace( "{$suffix}.css", "-rtl{$suffix}.css", $this->_css_href( $obj->src , $ver, "$handle-rtl" ));
79                         } else {
80                                 $rtl_href = $this->_css_href( $obj->extra['rtl'], $ver, "$handle-rtl" );
81                         }
82
83                         $tag .= apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-rtl-css' $title href='$rtl_href' type='text/css' media='$media' />\n", $handle );
84                 }
85
86                 $tag .= $end_cond;
87
88                 if ( $this->do_concat ) {
89                         $this->print_html .= $tag;
90                         if ( $inline_style = $this->print_inline_style( $handle, false ) )
91                                 $this->print_html .= sprintf( "<style type='text/css'>\n%s\n</style>\n", $inline_style );
92                 } else {
93                         echo $tag;
94                         $this->print_inline_style( $handle );
95                 }
96
97                 return true;
98         }
99
100         function add_inline_style( $handle, $code ) {
101                 if ( !$code )
102                         return false;
103
104                 $after = $this->get_data( $handle, 'after' );
105                 if ( !$after )
106                         $after = array();
107
108                 $after[] = $code;
109
110                 return $this->add_data( $handle, 'after', $after );
111         }
112
113         function print_inline_style( $handle, $echo = true ) {
114                 $output = $this->get_data( $handle, 'after' );
115
116                 if ( empty( $output ) )
117                         return false;
118
119                 $output = implode( "\n", $output );
120
121                 if ( !$echo )
122                         return $output;
123
124                 echo "<style type='text/css'>\n";
125                 echo "$output\n";
126                 echo "</style>\n";
127
128                 return true;
129         }
130
131         function all_deps( $handles, $recursion = false, $group = false ) {
132                 $r = parent::all_deps( $handles, $recursion );
133                 if ( !$recursion )
134                         $this->to_do = apply_filters( 'print_styles_array', $this->to_do );
135                 return $r;
136         }
137
138         function _css_href( $src, $ver, $handle ) {
139                 if ( !is_bool($src) && !preg_match('|^(https?:)?//|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {
140                         $src = $this->base_url . $src;
141                 }
142
143                 if ( !empty($ver) )
144                         $src = add_query_arg('ver', $ver, $src);
145                 $src = apply_filters( 'style_loader_src', $src, $handle );
146                 return esc_url( $src );
147         }
148
149         function in_default_dir($src) {
150                 if ( ! $this->default_dirs )
151                         return true;
152
153                 foreach ( (array) $this->default_dirs as $test ) {
154                         if ( 0 === strpos($src, $test) )
155                                 return true;
156                 }
157                 return false;
158         }
159
160         function do_footer_items() { // HTML 5 allows styles in the body, grab late enqueued items and output them in the footer.
161                 $this->do_items(false, 1);
162                 return $this->done;
163         }
164
165         function reset() {
166                 $this->do_concat = false;
167                 $this->concat = '';
168                 $this->concat_version = '';
169                 $this->print_html = '';
170         }
171 }