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<?php
class WP_Scripts extends WP_Dependencies {
var $base_url; // Full URL with trailing slash
var $default_version;
function __construct() {
do_action_ref_array( 'wp_default_scripts', array(&$this) );
}
/**
* Prints scripts
*
* Prints the scripts passed to it or the print queue. Also prints all necessary dependencies.
*
* @param mixed handles (optional) Scripts to be printed. (void) prints queue, (string) prints that script, (array of strings) prints those scripts.
* @return array Scripts that have been printed
*/
function print_scripts( $handles = false ) {
return $this->do_items( $handles );
}
function print_scripts_l10n( $handle ) {
if ( empty($this->registered[$handle]->extra['l10n']) || empty($this->registered[$handle]->extra['l10n'][0]) || !is_array($this->registered[$handle]->extra['l10n'][1]) )
return false;
$object_name = $this->registered[$handle]->extra['l10n'][0];
echo "<script type='text/javascript'>\n";
echo "/* <![CDATA[ */\n";
echo "\t$object_name = {\n";
$eol = '';
foreach ( $this->registered[$handle]->extra['l10n'][1] as $var => $val ) {
echo "$eol\t\t$var: \"" . js_escape( $val ) . '"';
$eol = ",\n";
}
echo "\n\t}\n";
echo "/* ]]> */\n";
echo "</script>\n";
return true;
}
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 .= '&' . $this->args[$handle];
$src = $this->registered[$handle]->src;
if ( !preg_match('|^https?://|', $src) && !preg_match('|^' . preg_quote(WP_CONTENT_URL) . '|', $src) ) {
$src = $this->base_url . $src;
}
$src = add_query_arg('ver', $ver, $src);
$src = clean_url(apply_filters( 'script_loader_src', $src, $handle ));
$this->print_scripts_l10n( $handle );
echo "<script type='text/javascript' src='$src'></script>\n";
return true;
}
/**
* Localizes a script
*
* Localizes only if script has already been added
*
* @param string handle Script name
* @param string object_name Name of JS object to hold l10n info
* @param array l10n Array of JS var name => localized string
* @return bool Successful localization
*/
function localize( $handle, $object_name, $l10n ) {
if ( !$object_name || !$l10n )
return false;
return $this->add_data( $handle, 'l10n', array( $object_name, $l10n ) );
}
function all_deps( $handles, $recursion = false ) {
$r = parent::all_deps( $handles, $recursion );
if ( !$recursion )
$this->to_do = apply_filters( 'print_scripts_array', $this->to_do );
return $r;
}
}
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