+ }
+
+ if ( 'after' !== $position ) {
+ $position = 'before';
+ }
+
+ $script = (array) $this->get_data( $handle, $position );
+ $script[] = $data;
+
+ return $this->add_data( $handle, $position, $script );
+ }
+
+ /**
+ * Prints inline scripts registered for a specific handle.
+ *
+ * @since 4.5.0
+ * @access public
+ *
+ * @param string $handle Name of the script to add the inline script to. Must be lowercase.
+ * @param string $position Optional. Whether to add the inline script before the handle
+ * or after. Default 'after'.
+ * @param bool $echo Optional. Whether to echo the script instead of just returning it.
+ * Default true.
+ * @return string|false Script on success, false otherwise.
+ */
+ public function print_inline_script( $handle, $position = 'after', $echo = true ) {
+ $output = $this->get_data( $handle, $position );
+
+ if ( empty( $output ) ) {
+ return false;
+ }
+
+ $output = trim( implode( "\n", $output ), "\n" );
+
+ if ( $echo ) {
+ printf( "<script type='text/javascript'>\n%s\n</script>\n", $output );
+ }
+
+ return $output;
+ }
+
+ /**
+ * Localizes a script, only if the script has already been added.
+ *
+ * @since 2.1.0
+ * @access public
+ *
+ * @param string $handle
+ * @param string $object_name
+ * @param array $l10n
+ * @return bool
+ */
+ public function localize( $handle, $object_name, $l10n ) {
+ if ( $handle === 'jquery' )
+ $handle = 'jquery-core';
+
+ if ( is_array($l10n) && isset($l10n['l10n_print_after']) ) { // back compat, preserve the code in 'l10n_print_after' if present
+ $after = $l10n['l10n_print_after'];
+ unset($l10n['l10n_print_after']);
+ }
+
+ foreach ( (array) $l10n as $key => $value ) {
+ if ( !is_scalar($value) )
+ continue;
+
+ $l10n[$key] = html_entity_decode( (string) $value, ENT_QUOTES, 'UTF-8');
+ }
+
+ $script = "var $object_name = " . wp_json_encode( $l10n ) . ';';
+
+ if ( !empty($after) )
+ $script .= "\n$after;";
+
+ $data = $this->get_data( $handle, 'data' );
+
+ if ( !empty( $data ) )
+ $script = "$data\n$script";
+
+ return $this->add_data( $handle, 'data', $script );