3 * Upgrader API: WP_Upgrader_Skin class
11 * Generic Skin for the WordPress Upgrader classes. This skin is designed to be extended for specific purposes.
14 * @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader-skins.php.
16 class WP_Upgrader_Skin {
19 public $done_header = false;
20 public $done_footer = false;
23 * Holds the result of an upgrade.
27 * @var string|bool|WP_Error
29 public $result = false;
30 public $options = array();
36 public function __construct($args = array()) {
37 $defaults = array( 'url' => '', 'nonce' => '', 'title' => '', 'context' => false );
38 $this->options = wp_parse_args($args, $defaults);
42 * @param WP_Upgrader $upgrader
44 public function set_upgrader(&$upgrader) {
45 if ( is_object($upgrader) )
46 $this->upgrader =& $upgrader;
53 public function add_strings() {
57 * Sets the result of an upgrade.
62 * @param string|bool|WP_Error $result The result of an upgrade.
64 public function set_result( $result ) {
65 $this->result = $result;
69 * Displays a form to the user to request for their FTP/SSH details in order
70 * to connect to the filesystem.
73 * @since 4.6.0 The `$context` parameter default changed from `false` to an empty string.
75 * @see request_filesystem_credentials()
77 * @param bool $error Optional. Whether the current request has failed to connect.
79 * @param string $context Optional. Full path to the directory that is tested
80 * for being writable. Default empty.
81 * @param bool $allow_relaxed_file_ownership Optional. Whether to allow Group/World writable. Default false.
82 * @return bool False on failure, true on success.
84 public function request_filesystem_credentials( $error = false, $context = '', $allow_relaxed_file_ownership = false ) {
85 $url = $this->options['url'];
87 $context = $this->options['context'];
89 if ( !empty($this->options['nonce']) ) {
90 $url = wp_nonce_url($url, $this->options['nonce']);
93 $extra_fields = array();
95 return request_filesystem_credentials( $url, '', $error, $context, $extra_fields, $allow_relaxed_file_ownership );
101 public function header() {
102 if ( $this->done_header ) {
105 $this->done_header = true;
106 echo '<div class="wrap">';
107 echo '<h1>' . $this->options['title'] . '</h1>';
113 public function footer() {
114 if ( $this->done_footer ) {
117 $this->done_footer = true;
123 * @param string|WP_Error $errors
125 public function error($errors) {
126 if ( ! $this->done_header )
128 if ( is_string($errors) ) {
129 $this->feedback($errors);
130 } elseif ( is_wp_error($errors) && $errors->get_error_code() ) {
131 foreach ( $errors->get_error_messages() as $message ) {
132 if ( $errors->get_error_data() && is_string( $errors->get_error_data() ) )
133 $this->feedback($message . ' ' . esc_html( strip_tags( $errors->get_error_data() ) ) );
135 $this->feedback($message);
142 * @param string $string
144 public function feedback($string) {
145 if ( isset( $this->upgrader->strings[$string] ) )
146 $string = $this->upgrader->strings[$string];
148 if ( strpos($string, '%') !== false ) {
149 $args = func_get_args();
150 $args = array_splice($args, 1);
152 $args = array_map( 'strip_tags', $args );
153 $args = array_map( 'esc_html', $args );
154 $string = vsprintf($string, $args);
157 if ( empty($string) )
159 show_message($string);
165 public function before() {}
170 public function after() {}
173 * Output JavaScript that calls function to decrement the update counts.
177 * @param string $type Type of update count to decrement. Likely values include 'plugin',
178 * 'theme', 'translation', etc.
180 protected function decrement_update_count( $type ) {
181 if ( ! $this->result || is_wp_error( $this->result ) || 'up_to_date' === $this->result ) {
185 if ( defined( 'IFRAME_REQUEST' ) ) {
186 echo '<script type="text/javascript">
187 if ( window.postMessage && JSON ) {
188 window.parent.postMessage( JSON.stringify( { action: "decrementUpdateCount", upgradeType: "' . $type . '" } ), window.location.protocol + "//" + window.location.hostname );
192 echo '<script type="text/javascript">
194 if ( wp && wp.updates.decrementCount ) {
195 wp.updates.decrementCount( "' . $type . '" );
205 public function bulk_header() {}
210 public function bulk_footer() {}