WordPress 4.3.1

[autoinstalls/wordpress.git] / wp-includes / widgets.php

diff --git a/wp-includes/widgets.php b/wp-includes/widgets.php
index a488a90f60100b99c50e3eb9f87d90f347aedfe0..28daba1a62fcc5982ac6ba5c0f3c306972d565ae 100644 (file)
--- a/wp-includes/widgets.php
+++ b/wp-includes/widgets.php
@@ -173,6 +173,7 @@ class WP_Widget {
         * @param array  $control_options
         */
        public function WP_Widget( $id_base, $name, $widget_options = array(), $control_options = array() ) {
         * @param array  $control_options
         */
        public function WP_Widget( $id_base, $name, $widget_options = array(), $control_options = array() ) {

+               _deprecated_constructor( 'WP_Widget', '4.3.0' );

                WP_Widget::__construct( $id_base, $name, $widget_options, $control_options );
        }
 
                WP_Widget::__construct( $id_base, $name, $widget_options, $control_options );
        }
 


@@ -214,20 +215,24 @@ class WP_Widget {
                $settings = $this->get_settings();
                $empty = true;
 
                $settings = $this->get_settings();
                $empty = true;
 

-               if ( is_array($settings) ) {
-                       foreach ( array_keys($settings) as $number ) {
-                               if ( is_numeric($number) ) {
-                                       $this->_set($number);
-                                       $this->_register_one($number);
+               // When $settings is an array-like object, get an intrinsic array for use with array_keys().
+               if ( $settings instanceof ArrayObject || $settings instanceof ArrayIterator ) {
+                       $settings = $settings->getArrayCopy();
+               }
+
+               if ( is_array( $settings ) ) {
+                       foreach ( array_keys( $settings ) as $number ) {
+                               if ( is_numeric( $number ) ) {
+                                       $this->_set( $number );
+                                       $this->_register_one( $number );

                                        $empty = false;
                                }
                        }
                }
 
                if ( $empty ) {
                                        $empty = false;
                                }
                        }
                }
 
                if ( $empty ) {

-                       // If there are none, we register the widget's existence with a
-                       // generic template
-                       $this->_set(1);
+                       // If there are none, we register the widget's existence with a generic template.
+                       $this->_set( 1 );

                        $this->_register_one();
                }
        }
                        $this->_register_one();
                }
        }


@@ -246,14 +251,21 @@ class WP_Widget {
                $this->id = $this->id_base . '-' . $number;
        }
 
                $this->id = $this->id_base . '-' . $number;
        }
 

+       /**
+        * @return callback
+        */

        public function _get_display_callback() {
                return array($this, 'display_callback');
        }
        public function _get_display_callback() {
                return array($this, 'display_callback');
        }

-
+       /**
+        * @return callback
+        */

        public function _get_update_callback() {
                return array($this, 'update_callback');
        }
        public function _get_update_callback() {
                return array($this, 'update_callback');
        }

-
+       /**
+        * @return callback
+        */

        public function _get_form_callback() {
                return array($this, 'form_callback');
        }
        public function _get_form_callback() {
                return array($this, 'form_callback');
        }


@@ -269,6 +281,8 @@ class WP_Widget {
         * @since 3.9.0
         * @access public
         *
         * @since 3.9.0
         * @access public
         *

+        * @global WP_Customize_Manager $wp_customize
+        *

         * @return bool True if within the Customizer preview, false if not.
         */
        public function is_preview() {
         * @return bool True if within the Customizer preview, false if not.
         */
        public function is_preview() {


@@ -294,15 +308,16 @@ class WP_Widget {
         * }
         */
        public function display_callback( $args, $widget_args = 1 ) {
         * }
         */
        public function display_callback( $args, $widget_args = 1 ) {

-               if ( is_numeric($widget_args) )
+               if ( is_numeric( $widget_args ) ) {

                        $widget_args = array( 'number' => $widget_args );
                        $widget_args = array( 'number' => $widget_args );

+               }

 
                $widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) );
                $this->_set( $widget_args['number'] );
 
                $widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) );
                $this->_set( $widget_args['number'] );

-               $instance = $this->get_settings();
+               $instances = $this->get_settings();

 
 

-               if ( array_key_exists( $this->number, $instance ) ) {
-                       $instance = $instance[$this->number];
+               if ( array_key_exists( $this->number, $instances ) ) {
+                       $instance = $instances[ $this->number ];

 
                        /**
                         * Filter the settings for a particular widget instance.
 
                        /**
                         * Filter the settings for a particular widget instance.


@@ -340,6 +355,8 @@ class WP_Widget {
         * @since 2.8.0
         * @access public
         *
         * @since 2.8.0
         * @access public
         *

+        * @global array $wp_registered_widgets
+        *

         * @param int $deprecated Not used.
         */
        public function update_callback( $deprecated = 1 ) {
         * @param int $deprecated Not used.
         */
        public function update_callback( $deprecated = 1 ) {


@@ -424,6 +441,7 @@ class WP_Widget {
         * @access public
         *
         * @param int|array $widget_args Widget instance number or array of widget arguments.
         * @access public
         *
         * @param int|array $widget_args Widget instance number or array of widget arguments.

+        * @return string|null

         */
        public function form_callback( $widget_args = 1 ) {
                if ( is_numeric($widget_args) )
         */
        public function form_callback( $widget_args = 1 ) {
                if ( is_numeric($widget_args) )


@@ -516,20 +534,22 @@ class WP_Widget {
         */
        public function get_settings() {
 
         */
        public function get_settings() {
 

-               $settings = get_option($this->option_name);
+               $settings = get_option( $this->option_name );

 
 

-               if ( false === $settings && isset($this->alt_option_name) )
-                       $settings = get_option($this->alt_option_name);
+               if ( false === $settings && isset( $this->alt_option_name ) ) {
+                       $settings = get_option( $this->alt_option_name );
+               }

 
 

-               if ( !is_array($settings) )
+               if ( ! is_array( $settings ) && ! ( $settings instanceof ArrayObject || $settings instanceof ArrayIterator ) ) {

                        $settings = array();
                        $settings = array();

+               }

 
 

-               if ( !empty($settings) && !array_key_exists('_multiwidget', $settings) ) {
-                       // old format, convert if single widget
-                       $settings = wp_convert_widget_settings($this->id_base, $this->option_name, $settings);
+               if ( ! empty( $settings ) && ! isset( $settings['_multiwidget'] ) ) {
+                       // Old format, convert if single widget.
+                       $settings = wp_convert_widget_settings( $this->id_base, $this->option_name, $settings );

                }
 
                }
 

-               unset($settings['_multiwidget'], $settings['__i__']);
+               unset( $settings['_multiwidget'], $settings['__i__'] );

                return $settings;
        }
 }
                return $settings;
        }
 }


@@ -544,10 +564,21 @@ class WP_Widget {
 class WP_Widget_Factory {
        public $widgets = array();
 
 class WP_Widget_Factory {
        public $widgets = array();
 

-       public function WP_Widget_Factory() {
+       /**
+        * PHP5 constructor.
+        */
+       public function __construct() {

                add_action( 'widgets_init', array( $this, '_register_widgets' ), 100 );
        }
 
                add_action( 'widgets_init', array( $this, '_register_widgets' ), 100 );
        }
 

+       /**
+        * PHP4 constructor.
+        */
+       public function WP_Widget_Factory() {
+               _deprecated_constructor( 'WP_Widget_Factory', '4.2.0' );
+               self::__construct();
+       }
+

        /**
         * Register a widget subclass.
         *
        /**
         * Register a widget subclass.
         *


@@ -569,8 +600,7 @@ class WP_Widget_Factory {
         * @param string $widget_class The name of a {@see WP_Widget} subclass.
         */
        public function unregister( $widget_class ) {
         * @param string $widget_class The name of a {@see WP_Widget} subclass.
         */
        public function unregister( $widget_class ) {

-               if ( isset($this->widgets[$widget_class]) )
-                       unset($this->widgets[$widget_class]);
+               unset( $this->widgets[ $widget_class ] );

        }
 
        /**
        }
 
        /**


@@ -578,6 +608,8 @@ class WP_Widget_Factory {
         *
         * @since 2.8.0
         * @access public
         *
         * @since 2.8.0
         * @access public

+        *
+        * @global array $wp_registered_widgets

         */
        public function _register_widgets() {
                global $wp_registered_widgets;
         */
        public function _register_widgets() {
                global $wp_registered_widgets;


@@ -625,15 +657,22 @@ $wp_registered_widgets = array();
  * @since 2.2.0
  */
 $wp_registered_widget_controls = array();
  * @since 2.2.0
  */
 $wp_registered_widget_controls = array();

+/**
+ * @global array $wp_registered_widget_updates
+ */

 $wp_registered_widget_updates = array();
 
 /**
  * Private
 $wp_registered_widget_updates = array();
 
 /**
  * Private

+ *
+ * @global array $_wp_sidebars_widgets

  */
 $_wp_sidebars_widgets = array();
 
 /**
  * Private
  */
 $_wp_sidebars_widgets = array();
 
 /**
  * Private

+ *
+ * @global array $_wp_deprecated_widgets_callbacks

  */
 $GLOBALS['_wp_deprecated_widgets_callbacks'] = array(
        'wp_widget_pages',
  */
 $GLOBALS['_wp_deprecated_widgets_callbacks'] = array(
        'wp_widget_pages',


@@ -670,8 +709,8 @@ $GLOBALS['_wp_deprecated_widgets_callbacks'] = array(
  * @since 2.8.0
  *
  * @see WP_Widget
  * @since 2.8.0
  *
  * @see WP_Widget

- * @see WP_Widget_Factory
- * @uses WP_Widget_Factory
+ *
+ * @global WP_Widget_Factory $wp_widget_factory

  *
  * @param string $widget_class The name of a class that extends WP_Widget
  */
  *
  * @param string $widget_class The name of a class that extends WP_Widget
  */


@@ -690,8 +729,8 @@ function register_widget($widget_class) {
  * @since 2.8.0
  *
  * @see WP_Widget
  * @since 2.8.0
  *
  * @see WP_Widget

- * @see WP_Widget_Factory
- * @uses WP_Widget_Factory
+ *
+ * @global WP_Widget_Factory $wp_widget_factory

  *
  * @param string $widget_class The name of a class that extends WP_Widget
  */
  *
  * @param string $widget_class The name of a class that extends WP_Widget
  */


@@ -712,6 +751,8 @@ function unregister_widget($widget_class) {
  *
  * @see register_sidebar() The second parameter is documented by register_sidebar() and is the same here.
  *
  *
  * @see register_sidebar() The second parameter is documented by register_sidebar() and is the same here.
  *

+ * @global array $wp_registered_sidebars
+ *

  * @param int          $number Optional. Number of sidebars to create. Default 1.
  * @param array|string $args {
  *     Optional. Array or string of arguments for building a sidebar.
  * @param int          $number Optional. Number of sidebars to create. Default 1.
  * @param array|string $args {
  *     Optional. Array or string of arguments for building a sidebar.


@@ -844,15 +885,14 @@ function register_sidebar($args = array()) {
  *
  * @since 2.2.0
  *
  *
  * @since 2.2.0
  *

- * @uses $wp_registered_sidebars Stores the new sidebar in this array by sidebar ID.
+ * @global array $wp_registered_sidebars Stores the new sidebar in this array by sidebar ID.

  *
  * @param string $name The ID of the sidebar when it was added.
  */
 function unregister_sidebar( $name ) {
        global $wp_registered_sidebars;
 
  *
  * @param string $name The ID of the sidebar when it was added.
  */
 function unregister_sidebar( $name ) {
        global $wp_registered_sidebars;
 

-       if ( isset( $wp_registered_sidebars[$name] ) )
-               unset( $wp_registered_sidebars[$name] );
+       unset( $wp_registered_sidebars[ $name ] );

 }
 
 /**
 }
 
 /**


@@ -867,6 +907,8 @@ function unregister_sidebar( $name ) {
  *
  * @global array $wp_registered_widgets       Uses stored registered widgets.
  * @global array $wp_register_widget_defaults Retrieves widget defaults.
  *
  * @global array $wp_registered_widgets       Uses stored registered widgets.
  * @global array $wp_register_widget_defaults Retrieves widget defaults.

+ * @global array $wp_registered_widget_updates
+ * @global array $_wp_deprecated_widgets_callbacks

  *
  * @param int|string $id              Widget ID.
  * @param string     $name            Widget display title.
  *
  * @param int|string $id              Widget ID.
  * @param string     $name            Widget display title.


@@ -879,7 +921,6 @@ function unregister_sidebar( $name ) {
  *     @type string $description Widget description for display in the widget administration
  *                               panel and/or theme.
  * }
  *     @type string $description Widget description for display in the widget administration
  *                               panel and/or theme.
  * }

- * @return null Will return if `$output_callback` is empty after removing widget.

  */
 function wp_register_sidebar_widget( $id, $name, $output_callback, $options = array() ) {
        global $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_widget_updates, $_wp_deprecated_widgets_callbacks;
  */
 function wp_register_sidebar_widget( $id, $name, $output_callback, $options = array() ) {
        global $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_widget_updates, $_wp_deprecated_widgets_callbacks;


@@ -893,12 +934,8 @@ function wp_register_sidebar_widget( $id, $name, $output_callback, $options = ar
 
        $id_base = _get_widget_id_base($id);
        if ( in_array($output_callback, $_wp_deprecated_widgets_callbacks, true) && !is_callable($output_callback) ) {
 
        $id_base = _get_widget_id_base($id);
        if ( in_array($output_callback, $_wp_deprecated_widgets_callbacks, true) && !is_callable($output_callback) ) {

-               if ( isset($wp_registered_widget_controls[$id]) )
-                       unset($wp_registered_widget_controls[$id]);
-
-               if ( isset($wp_registered_widget_updates[$id_base]) )
-                       unset($wp_registered_widget_updates[$id_base]);
-
+               unset( $wp_registered_widget_controls[ $id ] );
+               unset( $wp_registered_widget_updates[ $id_base ] );

                return;
        }
 
                return;
        }
 


@@ -935,8 +972,10 @@ function wp_register_sidebar_widget( $id, $name, $output_callback, $options = ar
  *
  * @since 2.5.0
  *
  *
  * @since 2.5.0
  *

+ * @global array $wp_registered_widgets
+ *

  * @param int|string $id Widget ID.
  * @param int|string $id Widget ID.

- * @return string Widget description, if available. Null on failure to retrieve description.
+ * @return string|void Widget description, if available.

  */
 function wp_widget_description( $id ) {
        if ( !is_scalar($id) )
  */
 function wp_widget_description( $id ) {
        if ( !is_scalar($id) )


@@ -956,8 +995,10 @@ function wp_widget_description( $id ) {
  *
  * @since 2.9.0
  *
  *
  * @since 2.9.0
  *

+ * @global array $wp_registered_sidebars
+ *

  * @param string $id sidebar ID.
  * @param string $id sidebar ID.

- * @return string Sidebar description, if available. Null on failure to retrieve description.
+ * @return string|void Sidebar description, if available.

  */
 function wp_sidebar_description( $id ) {
        if ( !is_scalar($id) )
  */
 function wp_sidebar_description( $id ) {
        if ( !is_scalar($id) )


@@ -1006,6 +1047,11 @@ function wp_unregister_sidebar_widget($id) {
  * @todo Document `$options` as a hash notation, re: WP_Widget::__construct() cross-reference.
  * @todo `$params` parameter?
  *
  * @todo Document `$options` as a hash notation, re: WP_Widget::__construct() cross-reference.
  * @todo `$params` parameter?
  *

+ * @global array $wp_registered_widget_controls
+ * @global array $wp_registered_widget_updates
+ * @global array $wp_registered_widgets
+ * @global array $_wp_deprecated_widgets_callbacks
+ *

  * @param int|string   $id               Sidebar ID.
  * @param string       $name             Sidebar display name.
  * @param callback     $control_callback Run when sidebar is displayed.
  * @param int|string   $id               Sidebar ID.
  * @param string       $name             Sidebar display name.
  * @param callback     $control_callback Run when sidebar is displayed.


@@ -1024,9 +1070,7 @@ function wp_register_widget_control( $id, $name, $control_callback, $options = a
        }
 
        if ( in_array($control_callback, $_wp_deprecated_widgets_callbacks, true) && !is_callable($control_callback) ) {
        }
 
        if ( in_array($control_callback, $_wp_deprecated_widgets_callbacks, true) && !is_callable($control_callback) ) {

-               if ( isset($wp_registered_widgets[$id]) )
-                       unset($wp_registered_widgets[$id]);
-
+               unset( $wp_registered_widgets[ $id ] );

                return;
        }
 
                return;
        }
 


@@ -1059,8 +1103,8 @@ function wp_register_widget_control( $id, $name, $control_callback, $options = a
 }
 
 /**
 }
 
 /**

- *

  * @global array $wp_registered_widget_updates
  * @global array $wp_registered_widget_updates

+ *

  * @param string   $id_base
  * @param callable $update_callback
  * @param array    $options
  * @param string   $id_base
  * @param callable $update_callback
  * @param array    $options


@@ -1086,11 +1130,11 @@ function _register_widget_update_callback($id_base, $update_callback, $options =
 /**
  *
  * @global array $wp_registered_widget_controls
 /**
  *
  * @global array $wp_registered_widget_controls

+ *

  * @param int|string $id
  * @param string     $name
  * @param callable   $form_callback
  * @param array      $options
  * @param int|string $id
  * @param string     $name
  * @param callable   $form_callback
  * @param array      $options

- * @return null

  */
 function _register_widget_form_callback($id, $name, $form_callback, $options = array()) {
        global $wp_registered_widget_controls;
  */
 function _register_widget_form_callback($id, $name, $form_callback, $options = array()) {
        global $wp_registered_widget_controls;


@@ -1129,7 +1173,7 @@ function _register_widget_form_callback($id, $name, $form_callback, $options = a
  * @param int|string $id Widget ID.
  */
 function wp_unregister_widget_control($id) {
  * @param int|string $id Widget ID.
  */
 function wp_unregister_widget_control($id) {

-       return wp_register_widget_control($id, '', '');
+       wp_register_widget_control( $id, '', '' );

 }
 
 /**
 }
 
 /**


@@ -1141,6 +1185,9 @@ function wp_unregister_widget_control($id) {
  *
  * @since 2.2.0
  *
  *
  * @since 2.2.0
  *

+ * @global array $wp_registered_sidebars
+ * @global array $wp_registered_widgets
+ *

  * @param int|string $index Optional, default is 1. Index, name or ID of dynamic sidebar.
  * @return bool True, if widget sidebar was found and called. False if not found or not called.
  */
  * @param int|string $index Optional, default is 1. Index, name or ID of dynamic sidebar.
  * @return bool True, if widget sidebar was found and called. False if not found or not called.
  */


@@ -1300,10 +1347,7 @@ function dynamic_sidebar($index = 1) {
         *                            Default false.
         * @param int|string $index   Index, name, or ID of the dynamic sidebar.
         */
         *                            Default false.
         * @param int|string $index   Index, name, or ID of the dynamic sidebar.
         */

-
-       $did_one = apply_filters( 'dynamic_sidebar_has_widgets', $did_one, $index );
-
-       return $did_one;
+       return apply_filters( 'dynamic_sidebar_has_widgets', $did_one, $index );

 }
 
 /**
 }
 
 /**


@@ -1321,11 +1365,13 @@ function dynamic_sidebar($index = 1) {
  *
  * @since 2.2.0
  *
  *
  * @since 2.2.0
  *

- * @param string $callback Optional, Widget callback to check.
- * @param int $widget_id Optional, but needed for checking. Widget ID.
- * @param string $id_base Optional, the base ID of a widget created by extending WP_Widget.
- * @param bool $skip_inactive Optional, whether to check in 'wp_inactive_widgets'.
- * @return mixed false if widget is not active or id of sidebar in which the widget is active.
+ * @global array $wp_registered_widgets
+ *
+ * @param string $callback      Optional, Widget callback to check.
+ * @param int    $widget_id     Optional, but needed for checking. Widget ID.
+ * @param string $id_base       Optional, the base ID of a widget created by extending WP_Widget.
+ * @param bool   $skip_inactive Optional, whether to check in 'wp_inactive_widgets'.
+ * @return string|false False if widget is not active or id of sidebar in which the widget is active.

  */
 function is_active_widget($callback = false, $widget_id = false, $id_base = false, $skip_inactive = true) {
        global $wp_registered_widgets;
  */
 function is_active_widget($callback = false, $widget_id = false, $id_base = false, $skip_inactive = true) {
        global $wp_registered_widgets;


@@ -1356,6 +1402,9 @@ function is_active_widget($callback = false, $widget_id = false, $id_base = fals
  *
  * @since 2.2.0
  *
  *
  * @since 2.2.0
  *

+ * @global array $wp_registered_widgets
+ * @global array $wp_registered_sidebars
+ *

  * @return bool True, if using widgets. False, if not using widgets.
  */
 function is_dynamic_sidebar() {
  * @return bool True, if using widgets. False, if not using widgets.
  */
 function is_dynamic_sidebar() {


@@ -1407,6 +1456,9 @@ function is_active_sidebar( $index ) {
  * @since 2.2.0
  * @access private
  *
  * @since 2.2.0
  * @access private
  *

+ * @global array $_wp_sidebars_widgets
+ * @global array $sidebars_widgets
+ *

  * @param bool $deprecated Not used (argument deprecated).
  * @return array Upgraded list of widgets to version 3 array format when called from the admin.
  */
  * @param bool $deprecated Not used (argument deprecated).
  * @return array Upgraded list of widgets to version 3 array format when called from the admin.
  */


@@ -1437,8 +1489,7 @@ function wp_get_sidebars_widgets( $deprecated = true ) {
         *
         * @param array $sidebars_widgets An associative array of sidebars and their widgets.
         */
         *
         * @param array $sidebars_widgets An associative array of sidebars and their widgets.
         */

-       $sidebars_widgets = apply_filters( 'sidebars_widgets', $sidebars_widgets );
-       return $sidebars_widgets;
+       return apply_filters( 'sidebars_widgets', $sidebars_widgets );

 }
 
 /**
 }
 
 /**


@@ -1461,6 +1512,8 @@ function wp_set_sidebars_widgets( $sidebars_widgets ) {
  * @since 2.2.0
  * @access private
  *
  * @since 2.2.0
  * @access private
  *

+ * @global array $wp_registered_sidebars
+ *

  * @return array
  */
 function wp_get_widget_defaults() {
  * @return array
  */
 function wp_get_widget_defaults() {


@@ -1479,6 +1532,8 @@ function wp_get_widget_defaults() {
  *
  * @since 2.8.0
  *
  *
  * @since 2.8.0
  *

+ * @global array $_wp_sidebars_widgets
+ *

  * @param string $base_name
  * @param string $option_name
  * @param array  $settings
  * @param string $base_name
  * @param string $option_name
  * @param array  $settings


@@ -1540,6 +1595,8 @@ function wp_convert_widget_settings($base_name, $option_name, $settings) {
  *
  * @since 2.8.0
  *
  *
  * @since 2.8.0
  *

+ * @global WP_Widget_Factory $wp_widget_factory
+ *

  * @param string $widget   The widget's PHP class name (see default-widgets.php).
  * @param array  $instance Optional. The widget's instance settings. Default empty array.
  * @param array  $args {
  * @param string $widget   The widget's PHP class name (see default-widgets.php).
  * @param array  $instance Optional. The widget's instance settings. Default empty array.
  * @param array  $args {


@@ -1586,6 +1643,8 @@ function the_widget( $widget, $instance = array(), $args = array() ) {
 
 /**
  * Private
 
 /**
  * Private

+ *
+ * @return string

  */
 function _get_widget_id_base($id) {
        return preg_replace( '/-[0-9]+$/', '', $id );
  */
 function _get_widget_id_base($id) {
        return preg_replace( '/-[0-9]+$/', '', $id );


@@ -1596,6 +1655,8 @@ function _get_widget_id_base($id) {
  *
  * @access private
  * @since 3.3.0
  *
  * @access private
  * @since 3.3.0

+ *
+ * @global array $sidebars_widgets

  */
 function _wp_sidebars_changed() {
        global $sidebars_widgets;
  */
 function _wp_sidebars_changed() {
        global $sidebars_widgets;


@@ -1611,9 +1672,13 @@ function _wp_sidebars_changed() {
  *
  * @since 2.8.0
  *
  *
  * @since 2.8.0
  *

+ * @global array $wp_registered_sidebars
+ * @global array $sidebars_widgets
+ * @global array $wp_registered_widgets
+ *

  * @param string|bool $theme_changed Whether the theme was changed as a boolean. A value
  *                                   of 'customize' defers updates for the Customizer.
  * @param string|bool $theme_changed Whether the theme was changed as a boolean. A value
  *                                   of 'customize' defers updates for the Customizer.

- * @return array
+ * @return array|void

  */
 function retrieve_widgets( $theme_changed = false ) {
        global $wp_registered_sidebars, $sidebars_widgets, $wp_registered_widgets;
  */
 function retrieve_widgets( $theme_changed = false ) {
        global $wp_registered_sidebars, $sidebars_widgets, $wp_registered_widgets;