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Viewing changes to wp-includes/class.wp-styles.php

  • Committer: Jacek Nykis
  • Date: 2015-01-05 16:17:05 UTC
  • Revision ID: jacek.nykis@canonical.com-20150105161705-w544l1h5mcg7u4w9
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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
        public $base_url;
 
21
        public $content_url;
 
22
        public $default_version;
 
23
        public $text_direction = 'ltr';
 
24
        public $concat = '';
 
25
        public $concat_version = '';
 
26
        public $do_concat = false;
 
27
        public $print_html = '';
 
28
        public $print_code = '';
 
29
        public $default_dirs;
 
30
 
 
31
        public function __construct() {
 
32
                /**
 
33
                 * Fires when the WP_Styles instance is initialized.
 
34
                 *
 
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                 * @since 2.6.0
 
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                 *
 
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                 * @param WP_Styles &$this WP_Styles instance, passed by reference.
 
38
                 */
 
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                do_action_ref_array( 'wp_default_styles', array(&$this) );
 
40
        }
 
41
 
 
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        public function do_item( $handle ) {
 
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                if ( !parent::do_item($handle) )
 
44
                        return false;
 
45
 
 
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                $obj = $this->registered[$handle];
 
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                if ( null === $obj->ver )
 
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                        $ver = '';
 
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                else
 
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                        $ver = $obj->ver ? $obj->ver : $this->default_version;
 
51
 
 
52
                if ( isset($this->args[$handle]) )
 
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                        $ver = $ver ? $ver . '&amp;' . $this->args[$handle] : $this->args[$handle];
 
54
 
 
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                if ( $this->do_concat ) {
 
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                        if ( $this->in_default_dir($obj->src) && !isset($obj->extra['conditional']) && !isset($obj->extra['alt']) ) {
 
57
                                $this->concat .= "$handle,";
 
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                                $this->concat_version .= "$handle$ver";
 
59
 
 
60
                                $this->print_code .= $this->print_inline_style( $handle, false );
 
61
 
 
62
                                return true;
 
63
                        }
 
64
                }
 
65
 
 
66
                if ( isset($obj->args) )
 
67
                        $media = esc_attr( $obj->args );
 
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                else
 
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                        $media = 'all';
 
70
 
 
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                $href = $this->_css_href( $obj->src, $ver, $handle );
 
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                if ( empty( $href ) ) {
 
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                        // Turns out there is nothing to print.
 
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                        return true;
 
75
                }
 
76
                $rel = isset($obj->extra['alt']) && $obj->extra['alt'] ? 'alternate stylesheet' : 'stylesheet';
 
77
                $title = isset($obj->extra['title']) ? "title='" . esc_attr( $obj->extra['title'] ) . "'" : '';
 
78
 
 
79
                /**
 
80
                 * Filter the HTML link tag of an enqueued style.
 
81
                 *
 
82
                 * @since 2.6.0
 
83
                 *
 
84
                 * @param string         The link tag for the enqueued style.
 
85
                 * @param string $handle The style's registered handle.
 
86
                 */
 
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                $tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' type='text/css' media='$media' />\n", $handle );
 
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                if ( 'rtl' === $this->text_direction && isset($obj->extra['rtl']) && $obj->extra['rtl'] ) {
 
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                        if ( is_bool( $obj->extra['rtl'] ) || 'replace' === $obj->extra['rtl'] ) {
 
90
                                $suffix = isset( $obj->extra['suffix'] ) ? $obj->extra['suffix'] : '';
 
91
                                $rtl_href = str_replace( "{$suffix}.css", "-rtl{$suffix}.css", $this->_css_href( $obj->src , $ver, "$handle-rtl" ));
 
92
                        } else {
 
93
                                $rtl_href = $this->_css_href( $obj->extra['rtl'], $ver, "$handle-rtl" );
 
94
                        }
 
95
 
 
96
                        /** This filter is documented in wp-includes/class.wp-styles.php */
 
97
                        $rtl_tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-rtl-css' $title href='$rtl_href' type='text/css' media='$media' />\n", $handle );
 
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                        if ( $obj->extra['rtl'] === 'replace' ) {
 
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                                $tag = $rtl_tag;
 
101
                        } else {
 
102
                                $tag .= $rtl_tag;
 
103
                        }
 
104
                }
 
105
 
 
106
                if ( isset($obj->extra['conditional']) && $obj->extra['conditional'] ) {
 
107
                        $tag = "<!--[if {$obj->extra['conditional']}]>\n" . $tag . "<![endif]-->\n";
 
108
                }
 
109
 
 
110
                if ( $this->do_concat ) {
 
111
                        $this->print_html .= $tag;
 
112
                        if ( $inline_style = $this->print_inline_style( $handle, false ) )
 
113
                                $this->print_html .= sprintf( "<style type='text/css'>\n%s\n</style>\n", $inline_style );
 
114
                } else {
 
115
                        echo $tag;
 
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                        $this->print_inline_style( $handle );
 
117
                }
 
118
 
 
119
                return true;
 
120
        }
 
121
 
 
122
        public function add_inline_style( $handle, $code ) {
 
123
                if ( !$code )
 
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                        return false;
 
125
 
 
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                $after = $this->get_data( $handle, 'after' );
 
127
                if ( !$after )
 
128
                        $after = array();
 
129
 
 
130
                $after[] = $code;
 
131
 
 
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                return $this->add_data( $handle, 'after', $after );
 
133
        }
 
134
 
 
135
        public function print_inline_style( $handle, $echo = true ) {
 
136
                $output = $this->get_data( $handle, 'after' );
 
137
 
 
138
                if ( empty( $output ) )
 
139
                        return false;
 
140
 
 
141
                $output = implode( "\n", $output );
 
142
 
 
143
                if ( !$echo )
 
144
                        return $output;
 
145
 
 
146
                echo "<style type='text/css'>\n";
 
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                echo "$output\n";
 
148
                echo "</style>\n";
 
149
 
 
150
                return true;
 
151
        }
 
152
 
 
153
        public function all_deps( $handles, $recursion = false, $group = false ) {
 
154
                $r = parent::all_deps( $handles, $recursion );
 
155
                if ( !$recursion ) {
 
156
                        /**
 
157
                         * Filter the array of enqueued styles before processing for output.
 
158
                         *
 
159
                         * @since 2.6.0
 
160
                         *
 
161
                         * @param array $to_do The list of enqueued styles about to be processed.
 
162
                         */
 
163
                        $this->to_do = apply_filters( 'print_styles_array', $this->to_do );
 
164
                }
 
165
                return $r;
 
166
        }
 
167
 
 
168
        public function _css_href( $src, $ver, $handle ) {
 
169
                if ( !is_bool($src) && !preg_match('|^(https?:)?//|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {
 
170
                        $src = $this->base_url . $src;
 
171
                }
 
172
 
 
173
                if ( !empty($ver) )
 
174
                        $src = add_query_arg('ver', $ver, $src);
 
175
 
 
176
                /**
 
177
                 * Filter an enqueued style's fully-qualified URL.
 
178
                 *
 
179
                 * @since 2.6.0
 
180
                 *
 
181
                 * @param string $src    The source URL of the enqueued style.
 
182
                 * @param string $handle The style's registered handle.
 
183
                 */
 
184
                $src = apply_filters( 'style_loader_src', $src, $handle );
 
185
                return esc_url( $src );
 
186
        }
 
187
 
 
188
        public function in_default_dir($src) {
 
189
                if ( ! $this->default_dirs )
 
190
                        return true;
 
191
 
 
192
                foreach ( (array) $this->default_dirs as $test ) {
 
193
                        if ( 0 === strpos($src, $test) )
 
194
                                return true;
 
195
                }
 
196
                return false;
 
197
        }
 
198
 
 
199
        public function do_footer_items() { // HTML 5 allows styles in the body, grab late enqueued items and output them in the footer.
 
200
                $this->do_items(false, 1);
 
201
                return $this->done;
 
202
        }
 
203
 
 
204
        public function reset() {
 
205
                $this->do_concat = false;
 
206
                $this->concat = '';
 
207
                $this->concat_version = '';
 
208
                $this->print_html = '';
 
209
        }
 
210
}