3 * BackPress Scripts enqueue.
5 * These classes were refactored from the WordPress WP_Scripts and WordPress
13 * BackPress Scripts enqueue class.
16 * @uses WP_Dependencies
19 class WP_Scripts extends WP_Dependencies {
20 var $base_url; // Full URL with trailing slash
23 var $in_footer = array();
25 var $concat_version = '';
26 var $do_concat = false;
29 var $ext_handles = '';
30 var $ext_version = '';
33 function __construct() {
34 do_action_ref_array( 'wp_default_scripts', array(&$this) );
40 * Prints the scripts passed to it or the print queue. Also prints all necessary dependencies.
42 * @param mixed $handles (optional) Scripts to be printed. (void) prints queue, (string) prints that script, (array of strings) prints those scripts.
43 * @param int $group (optional) If scripts were queued in groups prints this group number.
44 * @return array Scripts that have been printed
46 function print_scripts( $handles = false, $group = false ) {
47 return $this->do_items( $handles, $group );
50 // Deprecated since 3.3, see print_extra_script()
51 function print_scripts_l10n( $handle, $echo = true ) {
52 _deprecated_function( __FUNCTION__, '3.3', 'print_extra_script()' );
53 return $this->print_extra_script( $handle, $echo );
56 function print_extra_script( $handle, $echo = true ) {
57 if ( !$output = $this->get_data( $handle, 'data' ) )
63 echo "<script type='text/javascript'>\n"; // CDATA and type='text/javascript' is not needed for HTML 5
64 echo "/* <![CDATA[ */\n";
72 function do_item( $handle, $group = false ) {
73 if ( !parent::do_item($handle) )
76 if ( 0 === $group && $this->groups[$handle] > 0 ) {
77 $this->in_footer[] = $handle;
81 if ( false === $group && in_array($handle, $this->in_footer, true) )
82 $this->in_footer = array_diff( $this->in_footer, (array) $handle );
84 if ( null === $this->registered[$handle]->ver )
87 $ver = $this->registered[$handle]->ver ? $this->registered[$handle]->ver : $this->default_version;
89 if ( isset($this->args[$handle]) )
90 $ver = $ver ? $ver . '&' . $this->args[$handle] : $this->args[$handle];
92 $src = $this->registered[$handle]->src;
94 if ( $this->do_concat ) {
95 $srce = apply_filters( 'script_loader_src', $src, $handle );
96 if ( $this->in_default_dir($srce) ) {
97 $this->print_code .= $this->print_extra_script( $handle, false );
98 $this->concat .= "$handle,";
99 $this->concat_version .= "$handle$ver";
102 $this->ext_handles .= "$handle,";
103 $this->ext_version .= "$handle$ver";
107 $this->print_extra_script( $handle );
108 if ( !preg_match('|^https?://|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {
109 $src = $this->base_url . $src;
113 $src = add_query_arg('ver', $ver, $src);
115 $src = esc_url( apply_filters( 'script_loader_src', $src, $handle ) );
117 if ( $this->do_concat )
118 $this->print_html .= "<script type='text/javascript' src='$src'></script>\n";
120 echo "<script type='text/javascript' src='$src'></script>\n";
128 * Localizes only if the script has already been added
130 function localize( $handle, $object_name, $l10n ) {
131 if ( is_array($l10n) && isset($l10n['l10n_print_after']) ) { // back compat, preserve the code in 'l10n_print_after' if present
132 $after = $l10n['l10n_print_after'];
133 unset($l10n['l10n_print_after']);
136 foreach ( (array) $l10n as $key => $value ) {
137 if ( !is_scalar($value) )
140 $l10n[$key] = html_entity_decode( (string) $value, ENT_QUOTES, 'UTF-8');
143 $script = "var $object_name = " . json_encode($l10n) . ';';
145 if ( !empty($after) )
146 $script .= "\n$after";
148 $data = $this->get_data( $handle, 'data' );
150 if ( !empty( $data ) )
151 $script = "$data;\n$script";
153 return $this->add_data( $handle, 'data', $script );
156 function set_group( $handle, $recursion, $group = false ) {
158 if ( $this->registered[$handle]->args === 1 )
161 $grp = (int) $this->get_data( $handle, 'group' );
163 if ( false !== $group && $grp > $group )
166 return parent::set_group( $handle, $recursion, $grp );
169 function all_deps( $handles, $recursion = false, $group = false ) {
170 $r = parent::all_deps( $handles, $recursion );
172 $this->to_do = apply_filters( 'print_scripts_array', $this->to_do );
176 function do_head_items() {
177 $this->do_items(false, 0);
181 function do_footer_items() {
182 $this->do_items(false, 1);
186 function in_default_dir($src) {
187 if ( ! $this->default_dirs )
190 if ( 0 === strpos( $src, '/wp-includes/js/l10n' ) )
193 foreach ( (array) $this->default_dirs as $test ) {
194 if ( 0 === strpos($src, $test) )
201 $this->do_concat = false;
202 $this->print_code = '';
204 $this->concat_version = '';
205 $this->print_html = '';
206 $this->ext_version = '';
207 $this->ext_handles = '';