X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/41578db67d72562346e4dbb2a14889b23d522813..dc1231b7312fbdca99e9e887cc2bb35a28f85cdc:/wp-includes/widgets.php diff --git a/wp-includes/widgets.php b/wp-includes/widgets.php index 4905bbdb..28daba1a 100644 --- a/wp-includes/widgets.php +++ b/wp-includes/widgets.php @@ -6,8 +6,8 @@ * This functionality was found in a plugin before WordPress 2.2 release which * included it in the core from that point on. * - * @link http://codex.wordpress.org/Plugins/WordPress_Widgets WordPress Widgets - * @link http://codex.wordpress.org/Plugins/WordPress_Widgets_Api Widgets API + * @link https://codex.wordpress.org/Plugins/WordPress_Widgets WordPress Widgets + * @link https://codex.wordpress.org/Plugins/WordPress_Widgets_Api Widgets API * * @package WordPress * @subpackage Widgets @@ -23,47 +23,119 @@ */ class WP_Widget { - var $id_base; // Root id for all widgets of this type. - var $name; // Name for this widget type. - var $widget_options; // Option array passed to wp_register_sidebar_widget() - var $control_options; // Option array passed to wp_register_widget_control() + /** + * Root ID for all widgets of this type. + * + * @since 2.8.0 + * @access public + * @var mixed|string + */ + public $id_base; + + /** + * Name for this widget type. + * + * @since 2.8.0 + * @access public + * @var string + */ + public $name; + + /** + * Option array passed to {@see wp_register_sidebar_widget()}. + * + * @since 2.8.0 + * @access public + * @var array + */ + public $widget_options; + + /** + * Option array passed to {@see wp_register_widget_control()}. + * + * @since 2.8.0 + * @access public + * @var array + */ + public $control_options; + + /** + * Unique ID number of the current instance. + * + * @since 2.8.0 + * @access public + * @var bool|int + */ + public $number = false; + + /** + * Unique ID string of the current instance (id_base-number). + * + * @since 2.8.0 + * @access public + * @var bool|string + */ + public $id = false; - var $number = false; // Unique ID number of the current instance. - var $id = false; // Unique ID string of the current instance (id_base-number) - var $updated = false; // Set true when we update the data after a POST submit - makes sure we don't do it twice. + /** + * Whether the widget data has been updated. + * + * Set to true when the data is updated after a POST submit - ensures it does + * not happen twice. + * + * @since 2.8.0 + * @access public + * @var bool + */ + public $updated = false; // Member functions that you must over-ride. - /** Echo the widget content. + /** + * Echo the widget content. * * Subclasses should over-ride this function to generate their widget code. * - * @param array $args Display arguments including before_title, after_title, before_widget, and after_widget. - * @param array $instance The settings for the particular instance of the widget + * @since 2.8.0 + * @access public + * + * @param array $args Display arguments including before_title, after_title, + * before_widget, and after_widget. + * @param array $instance The settings for the particular instance of the widget. */ - function widget($args, $instance) { + public function widget( $args, $instance ) { die('function WP_Widget::widget() must be over-ridden in a sub-class.'); } - /** Update a particular instance. + /** + * Update a particular instance. * - * This function should check that $new_instance is set correctly. - * The newly calculated value of $instance should be returned. - * If "false" is returned, the instance won't be saved/updated. + * This function should check that $new_instance is set correctly. The newly-calculated + * value of `$instance` should be returned. If false is returned, the instance won't be + * saved/updated. * - * @param array $new_instance New settings for this instance as input by the user via form() - * @param array $old_instance Old settings for this instance - * @return array Settings to save or bool false to cancel saving + * @since 2.8.0 + * @access public + * + * @param array $new_instance New settings for this instance as input by the user via + * {@see WP_Widget::form()}. + * @param array $old_instance Old settings for this instance. + * @return array Settings to save or bool false to cancel saving. */ - function update($new_instance, $old_instance) { + public function update( $new_instance, $old_instance ) { return $new_instance; } - /** Echo the settings update form + /** + * Output the settings update form. * - * @param array $instance Current settings + * @since 2.8.0 + * @access public + * + * @param array $instance Current settings. + * @return string Default return is 'noform'. */ - function form($instance) { + public function form($instance) { echo '

' . __('There are no options for this widget.') . '

'; return 'noform'; } @@ -71,19 +143,20 @@ class WP_Widget { // Functions you'll need to call. /** - * PHP5 constructor - * - * @param string $id_base Optional Base ID for the widget, lower case, - * if left empty a portion of the widget's class name will be used. Has to be unique. - * @param string $name Name for the widget displayed on the configuration page. - * @param array $widget_options Optional Passed to wp_register_sidebar_widget() - * - description: shown on the configuration page - * - classname - * @param array $control_options Optional Passed to wp_register_widget_control() - * - width: required if more than 250px - * - height: currently not used but may be needed in the future + * PHP5 constructor. + * + * @since 2.8.0 + * @access public + * + * @param string $id_base Optional Base ID for the widget, lowercase and unique. If left empty, + * a portion of the widget's class name will be used Has to be unique. + * @param string $name Name for the widget displayed on the configuration page. + * @param array $widget_options Optional. Widget options. See {@see wp_register_sidebar_widget()} for + * information on accepted arguments. Default empty array. + * @param array $control_options Optional. Widget control options. See {@see wp_register_widget_control()} + * for information on accepted arguments. Default empty array. */ - function __construct( $id_base, $name, $widget_options = array(), $control_options = array() ) { + public function __construct( $id_base, $name, $widget_options = array(), $control_options = array() ) { $this->id_base = empty($id_base) ? preg_replace( '/(wp_)?widget_/', '', strtolower(get_class($this)) ) : strtolower($id_base); $this->name = $name; $this->option_name = 'widget_' . $this->id_base; @@ -93,8 +166,14 @@ class WP_Widget { /** * PHP4 constructor + * + * @param string $id_base + * @param string $name + * @param array $widget_options + * @param array $control_options */ - function WP_Widget( $id_base, $name, $widget_options = array(), $control_options = array() ) { + 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 ); } @@ -106,91 +185,139 @@ class WP_Widget { * @param string $field_name Field name * @return string Name attribute for $field_name */ - function get_field_name($field_name) { + public function get_field_name($field_name) { return 'widget-' . $this->id_base . '[' . $this->number . '][' . $field_name . ']'; } /** - * Constructs id attributes for use in form() fields + * Constructs id attributes for use in {@see WP_Widget::form()} fields. * - * This function should be used in form() methods to create id attributes for fields to be saved by update() + * This function should be used in form() methods to create id attributes + * for fields to be saved by {@see WP_Widget::update()}. * - * @param string $field_name Field name - * @return string ID attribute for $field_name + * @since 2.8.0 + * @access public + * + * @param string $field_name Field name. + * @return string ID attribute for `$field_name`. */ - function get_field_id($field_name) { + public function get_field_id( $field_name ) { return 'widget-' . $this->id_base . '-' . $this->number . '-' . $field_name; } - // Private Functions. Don't worry about these. - - function _register() { + /** + * Register all widget instances of this widget class. + * + * @since 2.8.0 + * @access private + */ + public function _register() { $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 ) { - // 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 ); $this->_register_one(); } } - function _set($number) { + /** + * Set the internal order number for the widget instance. + * + * @since 2.8.0 + * @access private + * + * @param int $number The unique order number of this widget instance compared to other + * instances of the same class. + */ + public function _set($number) { $this->number = $number; $this->id = $this->id_base . '-' . $number; } - function _get_display_callback() { + /** + * @return callback + */ + public function _get_display_callback() { return array($this, 'display_callback'); } - - function _get_update_callback() { + /** + * @return callback + */ + public function _get_update_callback() { return array($this, 'update_callback'); } - - function _get_form_callback() { + /** + * @return callback + */ + public function _get_form_callback() { return array($this, 'form_callback'); } /** - * Determine if we're in the Customizer; if true, then the object cache gets - * suspended and widgets should check this to decide whether they should - * store anything persistently to the object cache, to transients, or - * anywhere else. + * Determine whether the current request is inside the Customizer preview. + * + * If true -- the current request is inside the Customizer preview, then + * the object cache gets suspended and widgets should check this to decide + * whether they should store anything persistently to the object cache, + * to transients, or anywhere else. * * @since 3.9.0 + * @access public + * + * @global WP_Customize_Manager $wp_customize * - * @return bool True if Customizer is on, false if not. + * @return bool True if within the Customizer preview, false if not. */ - function is_preview() { + public function is_preview() { global $wp_customize; return ( isset( $wp_customize ) && $wp_customize->is_preview() ) ; } - /** Generate the actual widget content. - * Just finds the instance and calls widget(). - * Do NOT over-ride this function. */ - function display_callback( $args, $widget_args = 1 ) { - if ( is_numeric($widget_args) ) + /** + * Generate the actual widget content (Do NOT override). + * + * Finds the instance and calls {@see WP_Widget::widget()}. + * + * @since 2.8.0 + * @access public + * + * @param array $args Display arguments. See {@see WP_Widget::widget()} for information + * on accepted arguments. + * @param int|array $widget_args { + * Optional. Internal order number of the widget instance, or array of multi-widget arguments. + * Default 1. + * + * @type int $number Number increment used for multiples of the same widget. + * } + */ + public function display_callback( $args, $widget_args = 1 ) { + if ( is_numeric( $widget_args ) ) { $widget_args = array( 'number' => $widget_args ); + } $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. @@ -223,13 +350,16 @@ class WP_Widget { } /** - * Deal with changed settings. + * Deal with changed settings (Do NOT override). * - * Do NOT over-ride this function. + * @since 2.8.0 + * @access public * - * @param mixed $deprecated Not used. + * @global array $wp_registered_widgets + * + * @param int $deprecated Not used. */ - function update_callback( $deprecated = 1 ) { + public function update_callback( $deprecated = 1 ) { global $wp_registered_widgets; $all_instances = $this->get_settings(); @@ -238,8 +368,6 @@ class WP_Widget { if ( $this->updated ) return; - $sidebars_widgets = wp_get_sidebars_widgets(); - if ( isset($_POST['delete_widget']) && $_POST['delete_widget'] ) { // Delete the settings for this instance of the widget if ( isset($_POST['the-widget-id']) ) @@ -307,11 +435,15 @@ class WP_Widget { } /** - * Generate the control form. + * Generate the widget control form (Do NOT override). * - * Do NOT over-ride this function. + * @since 2.8.0 + * @access public + * + * @param int|array $widget_args Widget instance number or array of widget arguments. + * @return string|null */ - function form_callback( $widget_args = 1 ) { + public function form_callback( $widget_args = 1 ) { if ( is_numeric($widget_args) ) $widget_args = array( 'number' => $widget_args ); @@ -364,33 +496,60 @@ class WP_Widget { return $return; } - /** Helper function: Registers a single instance. */ - function _register_one($number = -1) { + /** + * Register an instance of the widget class. + * + * @since 2.8.0 + * @access private + * + * @param integer $number Optional. The unique order number of this widget instance + * compared to other instances of the same class. Default -1. + */ + public function _register_one( $number = -1 ) { wp_register_sidebar_widget( $this->id, $this->name, $this->_get_display_callback(), $this->widget_options, array( 'number' => $number ) ); _register_widget_update_callback( $this->id_base, $this->_get_update_callback(), $this->control_options, array( 'number' => -1 ) ); _register_widget_form_callback( $this->id, $this->name, $this->_get_form_callback(), $this->control_options, array( 'number' => $number ) ); } - function save_settings($settings) { + /** + * Save the settings for all instances of the widget class. + * + * @since 2.8.0 + * @access public + * + * @param array $settings Multi-dimensional array of widget instance settings. + */ + public function save_settings( $settings ) { $settings['_multiwidget'] = 1; update_option( $this->option_name, $settings ); } - function get_settings() { - $settings = get_option($this->option_name); + /** + * Get the settings for all instances of the widget class. + * + * @since 2.8.0 + * @access public + * + * @return array Multi-dimensional array of widget instance settings. + */ + public function get_settings() { + + $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 ) ) { $settings = array(); + } - if ( !empty($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; } } @@ -403,22 +562,56 @@ class WP_Widget { * @since 2.8.0 */ class WP_Widget_Factory { - var $widgets = array(); + public $widgets = array(); - function WP_Widget_Factory() { + /** + * PHP5 constructor. + */ + public function __construct() { add_action( 'widgets_init', array( $this, '_register_widgets' ), 100 ); } - function register($widget_class) { + /** + * PHP4 constructor. + */ + public function WP_Widget_Factory() { + _deprecated_constructor( 'WP_Widget_Factory', '4.2.0' ); + self::__construct(); + } + + /** + * Register a widget subclass. + * + * @since 2.8.0 + * @access public + * + * @param string $widget_class The name of a {@see WP_Widget} subclass. + */ + public function register( $widget_class ) { $this->widgets[$widget_class] = new $widget_class(); } - function unregister($widget_class) { - if ( isset($this->widgets[$widget_class]) ) - unset($this->widgets[$widget_class]); + /** + * Un-register a widget subclass. + * + * @since 2.8.0 + * @access public + * + * @param string $widget_class The name of a {@see WP_Widget} subclass. + */ + public function unregister( $widget_class ) { + unset( $this->widgets[ $widget_class ] ); } - function _register_widgets() { + /** + * Utility method for adding widgets to the registered widgets global. + * + * @since 2.8.0 + * @access public + * + * @global array $wp_registered_widgets + */ + public function _register_widgets() { global $wp_registered_widgets; $keys = array_keys($this->widgets); $registered = array_keys($wp_registered_widgets); @@ -464,15 +657,22 @@ $wp_registered_widgets = array(); * @since 2.2.0 */ $wp_registered_widget_controls = array(); +/** + * @global array $wp_registered_widget_updates + */ $wp_registered_widget_updates = array(); /** * Private + * + * @global array $_wp_sidebars_widgets */ $_wp_sidebars_widgets = array(); /** * Private + * + * @global array $_wp_deprecated_widgets_callbacks */ $GLOBALS['_wp_deprecated_widgets_callbacks'] = array( 'wp_widget_pages', @@ -509,8 +709,8 @@ $GLOBALS['_wp_deprecated_widgets_callbacks'] = array( * @since 2.8.0 * * @see WP_Widget - * @see WP_Widget_Factory - * @uses WP_Widget_Factory + * + * @global WP_Widget_Factory $wp_widget_factory * * @param string $widget_class The name of a class that extends WP_Widget */ @@ -529,8 +729,8 @@ function register_widget($widget_class) { * @since 2.8.0 * * @see WP_Widget - * @see WP_Widget_Factory - * @uses WP_Widget_Factory + * + * @global WP_Widget_Factory $wp_widget_factory * * @param string $widget_class The name of a class that extends WP_Widget */ @@ -545,25 +745,28 @@ function unregister_widget($widget_class) { * * If you wanted to quickly create multiple sidebars for a theme or internally. * This function will allow you to do so. If you don't pass the 'name' and/or - * 'id' in $args, then they will be built for you. - * - * The default for the name is "Sidebar #", with '#' being replaced with the - * number the sidebar is currently when greater than one. If first sidebar, the - * name will be just "Sidebar". The default for id is "sidebar-" followed by the - * number the sidebar creation is currently at. If the id is provided, and multiple - * sidebars are being defined, the id will have "-2" appended, and so on. + * 'id' in `$args`, then they will be built for you. * * @since 2.2.0 * * @see register_sidebar() The second parameter is documented by register_sidebar() and is the same here. - * @uses parse_str() Converts a string to an array to be used in the rest of the function. - * @uses register_sidebar() Sends single sidebar information [name, id] to this - * function to handle building the sidebar. * - * @param int $number Number of sidebars to create. - * @param string|array $args Builds Sidebar based off of 'name' and 'id' values. + * @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. + * + * @type string $id The base string of the unique identifier for each sidebar. If provided, and multiple + * sidebars are being defined, the id will have "-2" appended, and so on. + * Default 'sidebar-' followed by the number the sidebar creation is currently at. + * @type string $name The name or title for the sidebars displayed in the admin dashboard. If registering + * more than one sidebar, include '%d' in the string as a placeholder for the uniquely + * assigned number for each sidebar. + * Default 'Sidebar' for the first sidebar, otherwise 'Sidebar %d'. + * } */ -function register_sidebars($number = 1, $args = array()) { +function register_sidebars( $number = 1, $args = array() ) { global $wp_registered_sidebars; $number = (int) $number; @@ -610,32 +813,30 @@ function register_sidebars($number = 1, $args = array()) { * If theme support for 'widgets' has not yet been added when this function is * called, it will be automatically enabled through the use of add_theme_support() * - * Arguments passed as a string should be separated by '&': - * - * e.g. 'name=Sidebar&id=my_prefix_sidebar' - * - * The same arguments passed as an array: - * - * array( - * 'name' => 'Sidebar', - * 'id' => 'my_prefix_sidebar', - * ) - * - * Arguments: - * name - The name or title of the sidebar displayed in the admin dashboard. - * id - The unique identifier by which the sidebar will be called. - * before_widget - HTML content that will be prepended to each widget's HTML output - * when assigned to this sidebar. - * after_widget - HTML content that will be appended to each widget's HTML output - * when assigned to this sidebar. - * before_title - HTML content that will be prepended to the sidebar title when displayed. - * after_title - HTML content that will be appended to the sidebar title when displayed. - * * @since 2.2.0 - * @uses $wp_registered_sidebars Stores the new sidebar in this array by sidebar ID. - * @uses add_theme_support() to ensure widget support has been added. * - * @param string|array $args Arguments for the sidebar being registered. + * @global array $wp_registered_sidebars Stores the new sidebar in this array by sidebar ID. + * + * @param array|string $args { + * Optional. Array or string of arguments for the sidebar being registered. + * + * @type string $name The name or title of the sidebar displayed in the Widgets + * interface. Default 'Sidebar $instance'. + * @type string $id The unique identifier by which the sidebar will be called. + * Default 'sidebar-$instance'. + * @type string $description Description of the sidebar, displayed in the Widgets interface. + * Default empty string. + * @type string $class Extra CSS class to assign to the sidebar in the Widgets interface. + * Default empty. + * @type string $before_widget HTML content to prepend to each widget's HTML output when + * assigned to this sidebar. Default is an opening list item element. + * @type string $after_widget HTML content to append to each widget's HTML output when + * assigned to this sidebar. Default is a closing list item element. + * @type string $before_title HTML content to prepend to the sidebar title when displayed. + * Default is an opening h2 element. + * @type string $after_title HTML content to append to the sidebar title when displayed. + * Default is a closing h2 element. + * } * @return string Sidebar ID added to $wp_registered_sidebars global. */ function register_sidebar($args = array()) { @@ -643,6 +844,8 @@ function register_sidebar($args = array()) { $i = count($wp_registered_sidebars) + 1; + $id_is_empty = empty( $args['id'] ); + $defaults = array( 'name' => sprintf(__('Sidebar %d'), $i ), 'id' => "sidebar-$i", @@ -656,6 +859,11 @@ function register_sidebar($args = array()) { $sidebar = wp_parse_args( $args, $defaults ); + if ( $id_is_empty ) { + /* translators: 1: the id argument, 2: sidebar name, 3: recommended id value */ + _doing_it_wrong( __FUNCTION__, sprintf( __( 'No %1$s was set in the arguments array for the "%2$s" sidebar. Defaulting to "%3$s". Manually set the %1$s to "%3$s" to silence this notice and keep existing sidebar content.' ), 'id', $sidebar['name'], $sidebar['id'] ), '4.2.0' ); + } + $wp_registered_sidebars[$sidebar['id']] = $sidebar; add_theme_support('widgets'); @@ -677,38 +885,44 @@ function register_sidebar($args = array()) { * * @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; - if ( isset( $wp_registered_sidebars[$name] ) ) - unset( $wp_registered_sidebars[$name] ); + unset( $wp_registered_sidebars[ $name ] ); } /** - * Register widget for use in sidebars. + * Register an instance of a widget. * - * The default widget option is 'classname' that can be override. + * The default widget option is 'classname' that can be overridden. * - * The function can also be used to unregister widgets when $output_callback + * The function can also be used to un-register widgets when `$output_callback` * parameter is an empty string. * * @since 2.2.0 * - * @uses $wp_registered_widgets Uses stored registered widgets. - * @uses $wp_register_widget_defaults Retrieves widget defaults. - * - * @param int|string $id Widget ID. - * @param string $name Widget display title. - * @param callback $output_callback Run when widget is called. - * @param array|string $options Optional. Widget Options. - * @param mixed $params,... Widget parameters to add to widget. - * @return null Will return if $output_callback is empty after removing widget. + * @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 callback $output_callback Run when widget is called. + * @param array $options { + * Optional. An array of supplementary widget options for the instance. + * + * @type string $classname Class name for the widget's HTML container. Default is a shortened + * version of the output callback name. + * @type string $description Widget description for display in the widget administration + * panel and/or theme. + * } */ -function wp_register_sidebar_widget($id, $name, $output_callback, $options = array()) { +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; $id = strtolower($id); @@ -720,12 +934,8 @@ function wp_register_sidebar_widget($id, $name, $output_callback, $options = arr $id_base = _get_widget_id_base($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[ $id_base ] ); return; } @@ -762,8 +972,10 @@ function wp_register_sidebar_widget($id, $name, $output_callback, $options = arr * * @since 2.5.0 * + * @global array $wp_registered_widgets + * * @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) ) @@ -783,8 +995,10 @@ function wp_widget_description( $id ) { * * @since 2.9.0 * - * @param int|string $id sidebar ID. - * @return string Sidebar description, if available. Null on failure to retrieve description. + * @global array $wp_registered_sidebars + * + * @param string $id sidebar ID. + * @return string|void Sidebar description, if available. */ function wp_sidebar_description( $id ) { if ( !is_scalar($id) ) @@ -826,17 +1040,24 @@ function wp_unregister_sidebar_widget($id) { * control form, but try hard to use the default width. The 'id_base' is for * multi-widgets (widgets which allow multiple instances such as the text * widget), an id_base must be provided. The widget id will end up looking like - * {$id_base}-{$unique_number}. + * `{$id_base}-{$unique_number}`. * * @since 2.2.0 * - * @param int|string $id Sidebar ID. - * @param string $name Sidebar display name. - * @param callback $control_callback Run when sidebar is displayed. - * @param array|string $options Optional. Widget options. See above long description. - * @param mixed $params,... Optional. Additional parameters to add to widget. + * @todo Document `$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 array|string $options Optional. Widget options. See description above. Default empty array. */ -function wp_register_widget_control($id, $name, $control_callback, $options = array()) { +function wp_register_widget_control( $id, $name, $control_callback, $options = array() ) { global $wp_registered_widget_controls, $wp_registered_widget_updates, $wp_registered_widgets, $_wp_deprecated_widgets_callbacks; $id = strtolower($id); @@ -849,9 +1070,7 @@ function wp_register_widget_control($id, $name, $control_callback, $options = ar } if ( in_array($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[ $id ] ); return; } @@ -883,6 +1102,13 @@ function wp_register_widget_control($id, $name, $control_callback, $options = ar $wp_registered_widget_updates[$id_base] = $widget; } +/** + * @global array $wp_registered_widget_updates + * + * @param string $id_base + * @param callable $update_callback + * @param array $options + */ function _register_widget_update_callback($id_base, $update_callback, $options = array()) { global $wp_registered_widget_updates; @@ -901,6 +1127,15 @@ function _register_widget_update_callback($id_base, $update_callback, $options = $wp_registered_widget_updates[$id_base] = $widget; } +/** + * + * @global array $wp_registered_widget_controls + * + * @param int|string $id + * @param string $name + * @param callable $form_callback + * @param array $options + */ function _register_widget_form_callback($id, $name, $form_callback, $options = array()) { global $wp_registered_widget_controls; @@ -934,12 +1169,11 @@ function _register_widget_form_callback($id, $name, $form_callback, $options = a * Remove control callback for widget. * * @since 2.2.0 - * @uses wp_register_widget_control() Unregisters by using empty callback. * * @param int|string $id Widget ID. */ function wp_unregister_widget_control($id) { - return wp_register_widget_control($id, '', ''); + wp_register_widget_control( $id, '', '' ); } /** @@ -951,6 +1185,9 @@ function wp_unregister_widget_control($id) { * * @since 2.2.0 * + * @global array $wp_registered_sidebars + * @global array $wp_registered_widgets + * * @param int|string $index Optional, default is 1. Index, name or ID of dynamic sidebar. * @return bool True, if widget sidebar was found and called. False if not found or not called. */ @@ -1110,10 +1347,7 @@ function dynamic_sidebar($index = 1) { * 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, $index ); } /** @@ -1131,11 +1365,13 @@ function dynamic_sidebar($index = 1) { * * @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 $wp_registered_widgets; @@ -1144,8 +1380,9 @@ function is_active_widget($callback = false, $widget_id = false, $id_base = fals if ( is_array($sidebars_widgets) ) { foreach ( $sidebars_widgets as $sidebar => $widgets ) { - if ( $skip_inactive && 'wp_inactive_widgets' == $sidebar ) + if ( $skip_inactive && ( 'wp_inactive_widgets' === $sidebar || 'orphaned_widgets' === substr( $sidebar, 0, 16 ) ) ) { continue; + } if ( is_array($widgets) ) { foreach ( $widgets as $widget ) { @@ -1165,6 +1402,9 @@ function is_active_widget($callback = false, $widget_id = false, $id_base = fals * * @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() { @@ -1185,7 +1425,7 @@ function is_dynamic_sidebar() { * * @since 2.8.0 * - * @param mixed $index Sidebar name, id or number to check. + * @param string|int $index Sidebar name, id or number to check. * @return bool true if the sidebar is in use, false otherwise. */ function is_active_sidebar( $index ) { @@ -1208,7 +1448,7 @@ function is_active_sidebar( $index ) { /* Internal Functions */ /** - * Retrieve full list of sidebars and their widgets. + * Retrieve full list of sidebars and their widget instance IDs. * * Will upgrade sidebar widget list, if needed. Will also save updated list, if * needed. @@ -1216,10 +1456,13 @@ function is_active_sidebar( $index ) { * @since 2.2.0 * @access private * - * @param bool $deprecated Not used (deprecated). + * @global array $_wp_sidebars_widgets + * @global array $sidebars_widgets + * + * @param bool $deprecated Not used (argument deprecated). * @return array Upgraded list of widgets to version 3 array format when called from the admin. */ -function wp_get_sidebars_widgets($deprecated = true) { +function wp_get_sidebars_widgets( $deprecated = true ) { if ( $deprecated !== true ) _deprecated_argument( __FUNCTION__, '2.8.1' ); @@ -1246,8 +1489,7 @@ function wp_get_sidebars_widgets($deprecated = true) { * * @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 ); } /** @@ -1270,6 +1512,8 @@ function wp_set_sidebars_widgets( $sidebars_widgets ) { * @since 2.2.0 * @access private * + * @global array $wp_registered_sidebars + * * @return array */ function wp_get_widget_defaults() { @@ -1288,6 +1532,11 @@ function wp_get_widget_defaults() { * * @since 2.8.0 * + * @global array $_wp_sidebars_widgets + * + * @param string $base_name + * @param string $option_name + * @param array $settings * @return array */ function wp_convert_widget_settings($base_name, $option_name, $settings) { @@ -1346,17 +1595,30 @@ function wp_convert_widget_settings($base_name, $option_name, $settings) { * * @since 2.8.0 * - * @param string $widget the widget's PHP class name (see default-widgets.php) - * @param array $instance the widget's instance settings - * @param array $args the widget's sidebar args - * @return void - **/ -function the_widget($widget, $instance = array(), $args = array()) { + * @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 { + * Optional. Array of arguments to configure the display of the widget. + * + * @type string $before_widget HTML content that will be prepended to the widget's HTML output. + * Default `
`, where `%s` is the widget's class name. + * @type string $after_widget HTML content that will be appended to the widget's HTML output. + * Default `
`. + * @type string $before_title HTML content that will be prepended to the widget's title when displayed. + * Default `

`. + * @type string $after_title HTML content that will be appended to the widget's title when displayed. + * Default `

`. + * } + */ +function the_widget( $widget, $instance = array(), $args = array() ) { global $wp_widget_factory; $widget_obj = $wp_widget_factory->widgets[$widget]; - if ( !is_a($widget_obj, 'WP_Widget') ) + if ( ! ( $widget_obj instanceof WP_Widget ) ) { return; + } $before_widget = sprintf('
', $widget_obj->widget_options['classname'] ); $default_args = array( 'before_widget' => $before_widget, 'after_widget' => "
", 'before_title' => '

', 'after_title' => '

' ); @@ -1381,6 +1643,8 @@ function the_widget($widget, $instance = array(), $args = array()) { /** * Private + * + * @return string */ function _get_widget_id_base($id) { return preg_replace( '/-[0-9]+$/', '', $id ); @@ -1391,6 +1655,8 @@ function _get_widget_id_base($id) { * * @access private * @since 3.3.0 + * + * @global array $sidebars_widgets */ function _wp_sidebars_changed() { global $sidebars_widgets; @@ -1406,9 +1672,13 @@ function _wp_sidebars_changed() { * * @since 2.8.0 * - * @param mixed $theme_changed Whether the theme was changed as a boolean. A value - * of 'customize' defers updates for the customizer. - * @return array + * @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. + * @return array|void */ function retrieve_widgets( $theme_changed = false ) { global $wp_registered_sidebars, $sidebars_widgets, $wp_registered_widgets; @@ -1421,13 +1691,14 @@ function retrieve_widgets( $theme_changed = false ) { // time() that sidebars were stored is in $old_sidebars_widgets['time'] $_sidebars_widgets = $old_sidebars_widgets['data']; - if ( 'customize' === $theme_changed ) { + if ( 'customize' !== $theme_changed ) { remove_theme_mod( 'sidebars_widgets' ); } foreach ( $_sidebars_widgets as $sidebar => $widgets ) { - if ( 'wp_inactive_widgets' == $sidebar || 'orphaned_widgets' == substr( $sidebar, 0, 16 ) ) + if ( 'wp_inactive_widgets' === $sidebar || 'orphaned_widgets' === substr( $sidebar, 0, 16 ) ) { continue; + } if ( !in_array( $sidebar, $registered_sidebar_keys ) ) { $_sidebars_widgets['orphaned_widgets_' . ++$orphaned] = $widgets; @@ -1506,7 +1777,7 @@ function retrieve_widgets( $theme_changed = false ) { } $sidebars_widgets['wp_inactive_widgets'] = array_merge($lost_widgets, (array) $sidebars_widgets['wp_inactive_widgets']); - if ( 'customize' === $theme_changed ) { + if ( 'customize' !== $theme_changed ) { wp_set_sidebars_widgets( $sidebars_widgets ); }