WordPress/wp-includes/class.wp-styles.php

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<?php
/**
* BackPress Styles enqueue.
*
* These classes were refactored from the WordPress WP_Scripts and WordPress
* script enqueue API.
*
* @package BackPress
* @since r74
*/
/**
* BackPress Styles enqueue class.
*
* @package BackPress
* @uses WP_Dependencies
* @since r74
*/
class WP_Styles extends WP_Dependencies {
var $base_url;
var $content_url;
var $default_version;
var $text_direction = 'ltr';
var $concat = '';
var $concat_version = '';
var $do_concat = false;
var $print_html = '';
var $default_dirs;
function __construct() {
do_action_ref_array( 'wp_default_styles', array(&$this) );
}
function do_item( $handle ) {
if ( !parent::do_item($handle) )
return false;
$ver = $this->registered[$handle]->ver ? $this->registered[$handle]->ver : $this->default_version;
if ( isset($this->args[$handle]) )
$ver .= '&amp;' . $this->args[$handle];
if ( $this->do_concat ) {
if ( $this->in_default_dir($this->registered[$handle]->src) && !isset($this->registered[$handle]->extra['conditional']) && !isset($this->registered[$handle]->extra['alt']) ) {
$this->concat .= "$handle,";
$this->concat_version .= "$handle$ver";
return true;
}
}
if ( isset($this->registered[$handle]->args) )
$media = esc_attr( $this->registered[$handle]->args );
else
$media = 'all';
$href = $this->_css_href( $this->registered[$handle]->src, $ver, $handle );
$rel = isset($this->registered[$handle]->extra['alt']) && $this->registered[$handle]->extra['alt'] ? 'alternate stylesheet' : 'stylesheet';
$title = isset($this->registered[$handle]->extra['title']) ? "title='" . esc_attr( $this->registered[$handle]->extra['title'] ) . "'" : '';
$end_cond = $tag = '';
if ( isset($this->registered[$handle]->extra['conditional']) && $this->registered[$handle]->extra['conditional'] ) {
$tag .= "<!--[if {$this->registered[$handle]->extra['conditional']}]>\n";
$end_cond = "<![endif]-->\n";
}
$tag .= apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' type='text/css' media='$media' />\n", $handle );
if ( 'rtl' === $this->text_direction && isset($this->registered[$handle]->extra['rtl']) && $this->registered[$handle]->extra['rtl'] ) {
if ( is_bool( $this->registered[$handle]->extra['rtl'] ) )
$rtl_href = str_replace( '.css', '-rtl.css', $this->_css_href( $this->registered[$handle]->src , $ver, "$handle-rtl" ));
else
$rtl_href = $this->_css_href( $this->registered[$handle]->extra['rtl'], $ver, "$handle-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 );
}
$tag .= $end_cond;
if ( $this->do_concat )
$this->print_html .= $tag;
else
echo $tag;
// Could do something with $this->registered[$handle]->extra here to print out extra CSS rules
// echo "<style type='text/css'>\n";
// echo "/* <![CDATA[ */\n";
// echo "/* ]]> */\n";
// echo "</style>\n";
return true;
}
function all_deps( $handles, $recursion = false, $group = false ) {
$r = parent::all_deps( $handles, $recursion );
if ( !$recursion )
$this->to_do = apply_filters( 'print_styles_array', $this->to_do );
return $r;
}
function _css_href( $src, $ver, $handle ) {
if ( !preg_match('|^https?://|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {
$src = $this->base_url . $src;
}
$src = add_query_arg('ver', $ver, $src);
$src = apply_filters( 'style_loader_src', $src, $handle );
return esc_url( $src );
}
function in_default_dir($src) {
if ( ! $this->default_dirs )
return true;
foreach ( (array) $this->default_dirs as $test ) {
if ( 0 === strpos($src, $test) )
return true;
}
return false;
}
}