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 if ( ! function_exists( 'did_action' ) || did_action( 'init' ) )
37 add_action( 'init', array( $this, 'init' ), 0 );
41 do_action_ref_array( 'wp_default_scripts', array(&$this) );
47 * Prints the scripts passed to it or the print queue. Also prints all necessary dependencies.
49 * @param mixed $handles (optional) Scripts to be printed. (void) prints queue, (string) prints that script, (array of strings) prints those scripts.
50 * @param int $group (optional) If scripts were queued in groups prints this group number.
51 * @return array Scripts that have been printed
53 function print_scripts( $handles = false, $group = false ) {
54 return $this->do_items( $handles, $group );
57 // Deprecated since 3.3, see print_extra_script()
58 function print_scripts_l10n( $handle, $echo = true ) {
59 _deprecated_function( __FUNCTION__, '3.3', 'print_extra_script()' );
60 return $this->print_extra_script( $handle, $echo );
63 function print_extra_script( $handle, $echo = true ) {
64 if ( !$output = $this->get_data( $handle, 'data' ) )
70 echo "<script type='text/javascript'>\n"; // CDATA and type='text/javascript' is not needed for HTML 5
71 echo "/* <![CDATA[ */\n";
79 function do_item( $handle, $group = false ) {
80 if ( !parent::do_item($handle) )
83 if ( 0 === $group && $this->groups[$handle] > 0 ) {
84 $this->in_footer[] = $handle;
88 if ( false === $group && in_array($handle, $this->in_footer, true) )
89 $this->in_footer = array_diff( $this->in_footer, (array) $handle );
91 if ( null === $this->registered[$handle]->ver )
94 $ver = $this->registered[$handle]->ver ? $this->registered[$handle]->ver : $this->default_version;
96 if ( isset($this->args[$handle]) )
97 $ver = $ver ? $ver . '&' . $this->args[$handle] : $this->args[$handle];
99 $src = $this->registered[$handle]->src;
101 if ( $this->do_concat ) {
102 $srce = apply_filters( 'script_loader_src', $src, $handle );
103 if ( $this->in_default_dir($srce) ) {
104 $this->print_code .= $this->print_extra_script( $handle, false );
105 $this->concat .= "$handle,";
106 $this->concat_version .= "$handle$ver";
109 $this->ext_handles .= "$handle,";
110 $this->ext_version .= "$handle$ver";
114 $this->print_extra_script( $handle );
115 if ( !preg_match('|^https?://|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {
116 $src = $this->base_url . $src;
120 $src = add_query_arg('ver', $ver, $src);
122 $src = esc_url( apply_filters( 'script_loader_src', $src, $handle ) );
124 if ( $this->do_concat )
125 $this->print_html .= "<script type='text/javascript' src='$src'></script>\n";
127 echo "<script type='text/javascript' src='$src'></script>\n";
135 * Localizes only if the script has already been added
137 function localize( $handle, $object_name, $l10n ) {
138 if ( is_array($l10n) && isset($l10n['l10n_print_after']) ) { // back compat, preserve the code in 'l10n_print_after' if present
139 $after = $l10n['l10n_print_after'];
140 unset($l10n['l10n_print_after']);
143 foreach ( (array) $l10n as $key => $value ) {
144 if ( !is_scalar($value) )
147 $l10n[$key] = html_entity_decode( (string) $value, ENT_QUOTES, 'UTF-8');
150 $script = "var $object_name = " . json_encode($l10n) . ';';
152 if ( !empty($after) )
153 $script .= "\n$after;";
155 $data = $this->get_data( $handle, 'data' );
157 if ( !empty( $data ) )
158 $script = "$data\n$script";
160 return $this->add_data( $handle, 'data', $script );
163 function set_group( $handle, $recursion, $group = false ) {
165 if ( $this->registered[$handle]->args === 1 )
168 $grp = (int) $this->get_data( $handle, 'group' );
170 if ( false !== $group && $grp > $group )
173 return parent::set_group( $handle, $recursion, $grp );
176 function all_deps( $handles, $recursion = false, $group = false ) {
177 $r = parent::all_deps( $handles, $recursion );
179 $this->to_do = apply_filters( 'print_scripts_array', $this->to_do );
183 function do_head_items() {
184 $this->do_items(false, 0);
188 function do_footer_items() {
189 $this->do_items(false, 1);
193 function in_default_dir($src) {
194 if ( ! $this->default_dirs )
197 if ( 0 === strpos( $src, '/wp-includes/js/l10n' ) )
200 foreach ( (array) $this->default_dirs as $test ) {
201 if ( 0 === strpos($src, $test) )
208 $this->do_concat = false;
209 $this->print_code = '';
211 $this->concat_version = '';
212 $this->print_html = '';
213 $this->ext_version = '';
214 $this->ext_handles = '';