/home/u523506497/domains/mymelon.in/public_html/wp-includes UP
<?php
/**
* Core Widgets API
*
* This API is used for creating dynamic sidebar without hardcoding functionality into
* themes.
*
* Includes both internal WordPress routines and theme-use routines.
*
* This functionality was found in a plugin before the WordPress 2.2 release, which
* included it in the core from that point on.
*
* @link https://wordpress.org/documentation/article/manage-wordpress-widgets/
* @link https://developer.wordpress.org/themes/functionality/widgets/
*
* @package WordPress
* @subpackage Widgets
* @since 2.2.0
*/
//
// Global Variables.
//
/** @ignore */
global $wp_registered_sidebars, $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_widget_updates;
/**
* Stores the sidebars, since many themes can have more than one.
*
* @since 2.2.0
*
* @global array $wp_registered_sidebars The registered sidebars.
*/
$wp_registered_sidebars = array();
/**
* Stores the registered widgets.
*
* @since 2.2.0
*
* @global array $wp_registered_widgets The registered widgets.
*/
$wp_registered_widgets = array();
/**
* Stores the registered widget controls (options).
*
* @since 2.2.0
*
* @global array $wp_registered_widget_controls The registered widget controls.
*/
$wp_registered_widget_controls = array();
/**
* Stores the registered widget updates.
*
* @since 2.8.0
*
* @global array $wp_registered_widget_updates The 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
*/
$GLOBALS['_wp_deprecated_widgets_callbacks'] = array(
'wp_widget_pages',
'wp_widget_pages_control',
'wp_widget_calendar',
'wp_widget_calendar_control',
'wp_widget_archives',
'wp_widget_archives_control',
'wp_widget_links',
'wp_widget_meta',
'wp_widget_meta_control',
'wp_widget_search',
'wp_widget_recent_entries',
'wp_widget_recent_entries_control',
'wp_widget_tag_cloud',
'wp_widget_tag_cloud_control',
'wp_widget_categories',
'wp_widget_categories_control',
'wp_widget_text',
'wp_widget_text_control',
'wp_widget_rss',
'wp_widget_rss_control',
'wp_widget_recent_comments',
'wp_widget_recent_comments_control',
);
//
// Template tags & API functions.
//
/**
* Registers a widget.
*
* Registers a WP_Widget widget
*
* @since 2.8.0
* @since 4.6.0 Updated the `$widget` parameter to also accept a WP_Widget instance object
* instead of simply a `WP_Widget` subclass name.
*
* @see WP_Widget
*
* @global WP_Widget_Factory $wp_widget_factory
*
* @param string|WP_Widget $widget Either the name of a `WP_Widget` subclass or an instance of a `WP_Widget` subclass.
*/
function register_widget( $widget ) {
global $wp_widget_factory;
$wp_widget_factory->register( $widget );
}
/**
* Unregisters a widget.
*
* Unregisters a WP_Widget widget. Useful for un-registering default widgets.
* Run within a function hooked to the {@see 'widgets_init'} action.
*
* @since 2.8.0
* @since 4.6.0 Updated the `$widget` parameter to also accept a WP_Widget instance object
* instead of simply a `WP_Widget` subclass name.
*
* @see WP_Widget
*
* @global WP_Widget_Factory $wp_widget_factory
*
* @param string|WP_Widget $widget Either the name of a `WP_Widget` subclass or an instance of a `WP_Widget` subclass.
*/
function unregister_widget( $widget ) {
global $wp_widget_factory;
$wp_widget_factory->unregister( $widget );
}
/**
* Creates multiple sidebars.
*
* If you wanted to quickly create multiple sidebars for a theme or internally.
* This function will allow you to do so. If you don't pass the 'name' and/or
* 'id' in `$args`, then they will be built for you.
*
* @since 2.2.0
*
* @see register_sidebar() The second parameter is documented by register_sidebar() and is the same here.
*
* @global array $wp_registered_sidebars The new sidebars are stored in this array by sidebar ID.
*
* @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() ) {
global $wp_registered_sidebars;
$number = (int) $number;
if ( is_string( $args ) ) {
parse_str( $args, $args );
}
for ( $i = 1; $i <= $number; $i++ ) {
$_args = $args;
if ( $number > 1 ) {
if ( isset( $args['name'] ) ) {
$_args['name'] = sprintf( $args['name'], $i );
} else {
/* translators: %d: Sidebar number. */
$_args['name'] = sprintf( __( 'Sidebar %d' ), $i );
}
} else {
$_args['name'] = $args['name'] ?? __( 'Sidebar' );
}
/*
* Custom specified ID's are suffixed if they exist already.
* Automatically generated sidebar names need to be suffixed regardless starting at -0.
*/
if ( isset( $args['id'] ) ) {
$_args['id'] = $args['id'];
$n = 2; // Start at -2 for conflicting custom IDs.
while ( is_registered_sidebar( $_args['id'] ) ) {
$_args['id'] = $args['id'] . '-' . $n++;
}
} else {
$n = count( $wp_registered_sidebars );
do {
$_args['id'] = 'sidebar-' . ++$n;
} while ( is_registered_sidebar( $_args['id'] ) );
}
register_sidebar( $_args );
}
}
/**
* Builds the definition for a single sidebar and returns the ID.
*
* Accepts either a string or an array and then parses that against a set
* of default arguments for the new sidebar. WordPress will automatically
* generate a sidebar ID and name based on the current number of registered
* sidebars if those arguments are not included.
*
* When allowing for automatic generation of the name and ID parameters, keep
* in mind that the incrementor for your sidebar can change over time depending
* on what other plugins and themes are installed.
*
* 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().
*
* @since 2.2.0
* @since 5.6.0 Added the `before_sidebar` and `after_sidebar` arguments.
* @since 5.9.0 Added the `show_in_rest` argument.
*
* @global array $wp_registered_sidebars The registered sidebars.
*
* @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 $before_widget HTML content to prepend to each widget's HTML output when assigned
* to this sidebar. Receives the widget's ID attribute as `%1$s`
* and class name as `%2$s`. 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.
* @type string $before_sidebar HTML content to prepend to the sidebar when displayed.
* Receives the `$id` argument as `%1$s` and `$class` as `%2$s`.
* Outputs after the {@see 'dynamic_sidebar_before'} action.
* Default empty string.
* @type string $after_sidebar HTML content to append to the sidebar when displayed.
* Outputs before the {@see 'dynamic_sidebar_after'} action.
* Default empty string.
* @type bool $show_in_rest Whether to show this sidebar publicly in the REST API.
* Defaults to only showing the sidebar to administrator users.
* }
* @return string Sidebar ID added to $wp_registered_sidebars global.
*/
function register_sidebar( $args = array() ) {
global $wp_registered_sidebars;
$i = count( $wp_registered_sidebars ) + 1;
$id_is_empty = empty( $args['id'] );
$defaults = array(
/* translators: %d: Sidebar number. */
'name' => sprintf( __( 'Sidebar %d' ), $i ),
'id' => "sidebar-$i",
'description' => '',
'class' => '',
'before_widget' => '<li id="%1$s" class="widget %2$s">',
'after_widget' => "</li>\n",
'before_title' => '<h2 class="widgettitle">',
'after_title' => "</h2>\n",
'before_sidebar' => '',
'after_sidebar' => '',
'show_in_rest' => false,
);
/**
* Filters the sidebar default arguments.
*
* @since 5.3.0
*
* @see register_sidebar()
*
* @param array $defaults The default sidebar arguments.
*/
$sidebar = wp_parse_args( $args, apply_filters( 'register_sidebar_defaults', $defaults ) );
if ( $id_is_empty ) {
_doing_it_wrong(
__FUNCTION__,
sprintf(
/* translators: 1: The 'id' argument, 2: Sidebar name, 3: Recommended 'id' value. */
__( 'No %1$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.' ),
'<code>id</code>',
$sidebar['name'],
$sidebar['id']
),
'4.2.0'
);
}
$wp_registered_sidebars[ $sidebar['id'] ] = $sidebar;
add_theme_support( 'widgets' );
/**
* Fires once a sidebar has been registered.
*
* @since 3.0.0
*
* @param array $sidebar Parsed arguments for the registered sidebar.
*/
do_action( 'register_sidebar', $sidebar );
return $sidebar['id'];
}
/**
* Removes a sidebar from the list.
*
* @since 2.2.0
*
* @global array $wp_registered_sidebars The registered sidebars.
*
* @param string|int $sidebar_id The ID of the sidebar when it was registered.
*/
function unregister_sidebar( $sidebar_id ) {
global $wp_registered_sidebars;
unset( $wp_registered_sidebars[ $sidebar_id ] );
}
/**
* Checks if a sidebar is registered.
*
* @since 4.4.0
*
* @global array $wp_registered_sidebars The registered sidebars.
*
* @param string|int $sidebar_id The ID of the sidebar when it was registered.
* @return bool True if the sidebar is registered, false otherwise.
*/
function is_registered_sidebar( $sidebar_id ) {
global $wp_registered_sidebars;
return isset( $wp_registered_sidebars[ $sidebar_id ] );
}
/**
* Registers an instance of a widget.
*
* The default widget option is 'classname' that can be overridden.
*
* The function can also be used to un-register widgets when `$output_callback`
* parameter is an empty string.
*
* @since 2.2.0
* @since 5.3.0 Formalized the existing and already documented `...$params` parameter
* by adding it to the function signature.
* @since 5.8.0 Added show_instance_in_rest option.
*
* @global array $wp_registered_widgets Uses stored registered widgets.
* @global array $wp_registered_widget_controls Stores the registered widget controls (options).
* @global array $wp_registered_widget_updates The registered widget updates.
* @global array $_wp_deprecated_widgets_callbacks
*
* @param int|string $id Widget ID.
* @param string $name Widget display title.
* @param callable $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.
* @type bool $show_instance_in_rest Whether to show the widget's instance settings in the REST API.
* Only available for WP_Widget based widgets.
* }
* @param mixed ...$params Optional additional parameters to pass to the callback function when it's called.
*/
function wp_register_sidebar_widget( $id, $name, $output_callback, $options = array(), ...$params ) {
global $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_widget_updates, $_wp_deprecated_widgets_callbacks;
$id = strtolower( $id );
if ( empty( $output_callback ) ) {
unset( $wp_registered_widgets[ $id ] );
return;
}
$id_base = _get_widget_id_base( $id );
if ( in_array( $output_callback, $_wp_deprecated_widgets_callbacks, true ) && ! is_callable( $output_callback ) ) {
unset( $wp_registered_widget_controls[ $id ] );
unset( $wp_registered_widget_updates[ $id_base ] );
return;
}
$defaults = array( 'classname' => $output_callback );
$options = wp_parse_args( $options, $defaults );
$widget = array(
'name' => $name,
'id' => $id,
'callback' => $output_callback,
'params' => $params,
);
$widget = array_merge( $widget, $options );
if ( is_callable( $output_callback ) && ( ! isset( $wp_registered_widgets[ $id ] ) || did_action( 'widgets_init' ) ) ) {
/**
* Fires once for each registered widget.
*
* @since 3.0.0
*
* @param array $widget An array of default widget arguments.
*/
do_action( 'wp_register_sidebar_widget', $widget );
$wp_registered_widgets[ $id ] = $widget;
}
}
/**
* Retrieves description for widget.
*
* When registering widgets, the options can also include 'description' that
* describes the widget for display on the widget administration panel or
* in the theme.
*
* @since 2.5.0
*
* @global array $wp_registered_widgets The registered widgets.
*
* @param int|string $id Widget ID.
* @return string|null Widget description, if available.
*/
function wp_widget_description( $id ) {
if ( ! is_scalar( $id ) ) {
return null;
}
global $wp_registered_widgets;
if ( isset( $wp_registered_widgets[ $id ]['description'] ) ) {
return esc_html( $wp_registered_widgets[ $id ]['description'] );
}
return null;
}
/**
* Retrieves description for a sidebar.
*
* When registering sidebars a 'description' parameter can be included that
* describes the sidebar for display on the widget administration panel.
*
* @since 2.9.0
*
* @global array $wp_registered_sidebars The registered sidebars.
*
* @param string $id sidebar ID.
* @return string|null Sidebar description, if available.
*/
function wp_sidebar_description( $id ) {
if ( ! is_scalar( $id ) ) {
return null;
}
global $wp_registered_sidebars;
if ( isset( $wp_registered_sidebars[ $id ]['description'] ) ) {
return wp_kses( $wp_registered_sidebars[ $id ]['description'], 'sidebar_description' );
}
return null;
}
/**
* Remove widget from sidebar.
*
* @since 2.2.0
*
* @param int|string $id Widget ID.
*/
function wp_unregister_sidebar_widget( $id ) {
/**
* Fires just before a widget is removed from a sidebar.
*
* @since 3.0.0
*
* @param int|string $id The widget ID.
*/
do_action( 'wp_unregister_sidebar_widget', $id );
wp_register_sidebar_widget( $id, '', '' );
wp_unregister_widget_control( $id );
}
/**
* Registers widget control callback for customizing options.
*
* @since 2.2.0
* @since 5.3.0 Formalized the existing and already documented `...$params` parameter
* by adding it to the function signature.
*
* @global array $wp_registered_widget_controls The registered widget controls.
* @global array $wp_registered_widget_updates The registered widget updates.
* @global array $wp_registered_widgets The registered widgets.
* @global array $_wp_deprecated_widgets_callbacks
*
* @param int|string $id Sidebar ID.
* @param string $name Sidebar display name.
* @param callable $control_callback Run when sidebar is displayed.
* @param array $options {
* Optional. Array or string of control options. Default empty array.
*
* @type int $height Never used. Default 200.
* @type int $width Width of the fully expanded control form (but try hard to use the default width).
* Default 250.
* @type int|string $id_base Required for multi-widgets, i.e widgets that allow multiple instances such as the
* text widget. The widget ID will end up looking like `{$id_base}-{$unique_number}`.
* }
* @param mixed ...$params Optional additional parameters to pass to the callback function when it's called.
*/
function wp_register_widget_control( $id, $name, $control_callback, $options = array(), ...$params ) {
global $wp_registered_widget_controls, $wp_registered_widget_updates, $wp_registered_widgets, $_wp_deprecated_widgets_callbacks;
$id = strtolower( $id );
$id_base = _get_widget_id_base( $id );
if ( empty( $control_callback ) ) {
unset( $wp_registered_widget_controls[ $id ] );
unset( $wp_registered_widget_updates[ $id_base ] );
return;
}
if ( in_array( $control_callback, $_wp_deprecated_widgets_callbacks, true ) && ! is_callable( $control_callback ) ) {
unset( $wp_registered_widgets[ $id ] );
return;
}
if ( isset( $wp_registered_widget_controls[ $id ] ) && ! did_action( 'widgets_init' ) ) {
return;
}
$defaults = array(
'width' => 250,
'height' => 200,
); // Height is never used.
$options = wp_parse_args( $options, $defaults );
$options['width'] = (int) $options['width'];
$options['height'] = (int) $options['height'];
$widget = array(
'name' => $name,
'id' => $id,
'callback' => $control_callback,
'params' => $params,
);
$widget = array_merge( $widget, $options );
$wp_registered_widget_controls[ $id ] = $widget;
if ( isset( $wp_registered_widget_updates[ $id_base ] ) ) {
return;
}
if ( isset( $widget['params'][0]['number'] ) ) {
$widget['params'][0]['number'] = -1;
}
unset( $widget['width'], $widget['height'], $widget['name'], $widget['id'] );
$wp_registered_widget_updates[ $id_base ] = $widget;
}
/**
* Registers the update callback for a widget.
*
* @since 2.8.0
* @since 5.3.0 Formalized the existing and already documented `...$params` parameter
* by adding it to the function signature.
*
* @global array $wp_registered_widget_updates The registered widget updates.
*
* @param string $id_base The base ID of a widget created by extending WP_Widget.
* @param callable $update_callback Update callback method for the widget.
* @param array $options Optional. Widget control options. See wp_register_widget_control().
* Default empty array.
* @param mixed ...$params Optional additional parameters to pass to the callback function when it's called.
*/
function _register_widget_update_callback( $id_base, $update_callback, $options = array(), ...$params ) {
global $wp_registered_widget_updates;
if ( isset( $wp_registered_widget_updates[ $id_base ] ) ) {
if ( empty( $update_callback ) ) {
unset( $wp_registered_widget_updates[ $id_base ] );
}
return;
}
$widget = array(
'callback' => $update_callback,
'params' => $params,
);
$widget = array_merge( $widget, $options );
$wp_registered_widget_updates[ $id_base ] = $widget;
}
/**
* Registers the form callback for a widget.
*
* @since 2.8.0
* @since 5.3.0 Formalized the existing and already documented `...$params` parameter
* by adding it to the function signature.
*
* @global array $wp_registered_widget_controls The registered widget controls.
*
* @param int|string $id Widget ID.
* @param string $name Name attribute for the widget.
* @param callable $form_callback Form callback.
* @param array $options Optional. Widget control options. See wp_register_widget_control().
* Default empty array.
* @param mixed ...$params Optional additional parameters to pass to the callback function when it's called.
*/
function _register_widget_form_callback( $id, $name, $form_callback, $options = array(), ...$params ) {
global $wp_registered_widget_controls;
$id = strtolower( $id );
if ( empty( $form_callback ) ) {
unset( $wp_registered_widget_controls[ $id ] );
return;
}
if ( isset( $wp_registered_widget_controls[ $id ] ) && ! did_action( 'widgets_init' ) ) {
return;
}
$defaults = array(
'width' => 250,
'height' => 200,
);
$options = wp_parse_args( $options, $defaults );
$options['width'] = (int) $options['width'];
$options['height'] = (int) $options['height'];
$widget = array(
'name' => $name,
'id' => $id,
'callback' => $form_callback,
'params' => $params,
);
$widget = array_merge( $widget, $options );
$wp_registered_widget_controls[ $id ] = $widget;
}
/**
* Removes control callback for widget.
*
* @since 2.2.0
*
* @param int|string $id Widget ID.
*/
function wp_unregister_widget_control( $id ) {
wp_register_widget_control( $id, '', '' );
}
/**
* Displays dynamic sidebar.
*
* By default this displays the default sidebar or 'sidebar-1'. If your theme specifies the 'id' or
* 'name' parameter for its registered sidebars you can pass an ID or name as the $index parameter.
* Otherwise, you can pass in a numerical index to display the sidebar at that index.
*
* @since 2.2.0
*
* @global array $wp_registered_sidebars The registered sidebars.
* @global array $wp_registered_widgets The registered widgets.
*
* @param int|string $index Optional. Index, name or ID of dynamic sidebar. Default 1.
* @return bool True, if widget sidebar was found and called. False if not found or not called.
*/
function dynamic_sidebar( $index = 1 ) {
global $wp_registered_sidebars, $wp_registered_widgets;
if ( is_int( $index ) ) {
$index = "sidebar-$index";
} else {
$index = sanitize_title( $index );
foreach ( (array) $wp_registered_sidebars as $key => $value ) {
if ( sanitize_title( $value['name'] ) === $index ) {
$index = $key;
break;
}
}
}
$sidebars_widgets = wp_get_sidebars_widgets();
if ( empty( $wp_registered_sidebars[ $index ] ) || empty( $sidebars_widgets[ $index ] ) || ! is_array( $sidebars_widgets[ $index ] ) ) {
/** This action is documented in wp-includes/widgets.php */
do_action( 'dynamic_sidebar_before', $index, false );
/** This action is documented in wp-includes/widgets.php */
do_action( 'dynamic_sidebar_after', $index, false );
/** This filter is documented in wp-includes/widgets.php */
return apply_filters( 'dynamic_sidebar_has_widgets', false, $index );
}
$sidebar = $wp_registered_sidebars[ $index ];
$sidebar['before_sidebar'] = sprintf( $sidebar['before_sidebar'], $sidebar['id'], $sidebar['class'] );
/**
* Fires before widgets are rendered in a dynamic sidebar.
*
* Note: The action also fires for empty sidebars, and on both the front end
* and back end, including the Inactive Widgets sidebar on the Widgets screen.
*
* @since 3.9.0
*
* @param int|string $index Index, name, or ID of the dynamic sidebar.
* @param bool $has_widgets Whether the sidebar is populated with widgets.
* Default true.
*/
do_action( 'dynamic_sidebar_before', $index, true );
if ( ! is_admin() && ! empty( $sidebar['before_sidebar'] ) ) {
echo $sidebar['before_sidebar'];
}
$did_one = false;
foreach ( (array) $sidebars_widgets[ $index ] as $id ) {
if ( ! isset( $wp_registered_widgets[ $id ] ) ) {
continue;
}
$params = array_merge(
array(
array_merge(
$sidebar,
array(
'widget_id' => $id,
'widget_name' => $wp_registered_widgets[ $id ]['name'],
)
),
),
(array) $wp_registered_widgets[ $id ]['params']
);
// Substitute HTML `id` and `class` attributes into `before_widget`.
$classname_ = '';
foreach ( (array) $wp_registered_widgets[ $id ]['classname'] as $cn ) {
if ( is_string( $cn ) ) {
$classname_ .= '_' . $cn;
} elseif ( is_object( $cn ) ) {
$classname_ .= '_' . get_class( $cn );
}
}
$classname_ = ltrim( $classname_, '_' );
$params[0]['before_widget'] = sprintf(
$params[0]['before_widget'],
str_replace( '\\', '_', $id ),
$classname_
);
/**
* Filters the parameters passed to a widget's display callback.
*
* Note: The filter is evaluated on both the front end and back end,
* including for the Inactive Widgets sidebar on the Widgets screen.
*
* @since 2.5.0
*
* @see register_sidebar()
*
* @param array $params {
* @type array $args {
* An array of widget display arguments.
*
* @type string $name Name of the sidebar the widget is assigned to.
* @type string $id ID of the sidebar the widget is assigned to.
* @type string $description The sidebar description.
* @type string $class CSS class applied to the sidebar container.
* @type string $before_widget HTML markup to prepend to each widget in the sidebar.
* @type string $after_widget HTML markup to append to each widget in the sidebar.
* @type string $before_title HTML markup to prepend to the widget title when displayed.
* @type string $after_title HTML markup to append to the widget title when displayed.
* @type string $widget_id ID of the widget.
* @type string $widget_name Name of the widget.
* }
* @type array $widget_args {
* An array of multi-widget arguments.
*
* @type int $number Number increment used for multiples of the same widget.
* }
* }
*/
$params = apply_filters( 'dynamic_sidebar_params', $params );
$callback = $wp_registered_widgets[ $id ]['callback'];
/**
* Fires before a widget's display callback is called.
*
* Note: The action fires on both the front end and back end, including
* for widgets in the Inactive Widgets sidebar on the Widgets screen.
*
* The action is not fired for empty sidebars.
*
* @since 3.0.0
*
* @param array $widget {
* An associative array of widget arguments.
*
* @type string $name Name of the widget.
* @type string $id Widget ID.
* @type callable $callback When the hook is fired on the front end, `$callback` is an array
* containing the widget object. Fired on the back end, `$callback`
* is 'wp_widget_control', see `$_callback`.
* @type array $params An associative array of multi-widget arguments.
* @type string $classname CSS class applied to the widget container.
* @type string $description The widget description.
* @type array $_callback When the hook is fired on the back end, `$_callback` is populated
* with an array containing the widget object, see `$callback`.
* }
*/
do_action( 'dynamic_sidebar', $wp_registered_widgets[ $id ] );
if ( is_callable( $callback ) ) {
call_user_func_array( $callback, $params );
$did_one = true;
}
}
if ( ! is_admin() && ! empty( $sidebar['after_sidebar'] ) ) {
echo $sidebar['after_sidebar'];
}
/**
* Fires after widgets are rendered in a dynamic sidebar.
*
* Note: The action also fires for empty sidebars, and on both the front end
* and back end, including the Inactive Widgets sidebar on the Widgets screen.
*
* @since 3.9.0
*
* @param int|string $index Index, name, or ID of the dynamic sidebar.
* @param bool $has_widgets Whether the sidebar is populated with widgets.
* Default true.
*/
do_action( 'dynamic_sidebar_after', $index, true );
/**
* Filters whether a sidebar has widgets.
*
* Note: The filter is also evaluated for empty sidebars, and on both the front end
* and back end, including the Inactive Widgets sidebar on the Widgets screen.
*
* @since 3.9.0
*
* @param bool $did_one Whether at least one widget was rendered in the sidebar.
* Default false.
* @param int|string $index Index, name, or ID of the dynamic sidebar.
*/
return apply_filters( 'dynamic_sidebar_has_widgets', $did_one, $index );
}
/**
* Determines whether a given widget is displayed on the front end.
*
* Either $callback or $id_base can be used.
* $id_base is the first argument when extending WP_Widget class.
* Without the optional $widget_id parameter, returns the ID of the first sidebar
* in which the first instance of the widget with the given callback or $id_base is found.
* With the $widget_id parameter, returns the ID of the sidebar where
* the widget with that callback/$id_base AND that ID is found.
*
* NOTE: $widget_id and $id_base are the same for single widgets. To be effective
* this function has to run after widgets have initialized, at action {@see 'init'} or later.
*
* For more information on this and similar theme functions, check out
* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
* Conditional Tags} article in the Theme Developer Handbook.
*
* @since 2.2.0
*
* @global array $wp_registered_widgets The registered widgets.
*
* @param callable|false $callback Optional. Widget callback to check. Default false.
* @param string|false $widget_id Optional. Widget ID. Optional, but needed for checking.
* Default false.
* @param string|false $id_base Optional. The base ID of a widget created by extending WP_Widget.
* Default false.
* @param bool $skip_inactive Optional. Whether to check in 'wp_inactive_widgets'.
* Default true.
* @return string|false ID of the sidebar in which the widget is active,
* false if the widget is not active.
*/
function is_active_widget( $callback = false, $widget_id = false, $id_base = false, $skip_inactive = true ) {
global $wp_registered_widgets;
$sidebars_widgets = wp_get_sidebars_widgets();
if ( is_array( $sidebars_widgets ) ) {
foreach ( $sidebars_widgets as $sidebar => $widgets ) {
if ( $skip_inactive && ( 'wp_inactive_widgets' === $sidebar || str_starts_with( $sidebar, 'orphaned_widgets' ) ) ) {
continue;
}
if ( is_array( $widgets ) ) {
foreach ( $widgets as $widget ) {
if ( ( $callback && isset( $wp_registered_widgets[ $widget ]['callback'] ) && $wp_registered_widgets[ $widget ]['callback'] === $callback ) || ( $id_base && _get_widget_id_base( $widget ) === $id_base ) ) {
if ( ! $widget_id || ( isset( $wp_registered_widgets[ $widget ]['id'] ) && $widget_id === $wp_registered_widgets[ $widget ]['id'] ) ) {
return $sidebar;
}
}
}
}
}
}
return false;
}
/**
* Determines whether the dynamic sidebar is enabled and used by the theme.
*
* For more information on this and similar theme functions, check out
* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
* Conditional Tags} article in the Theme Developer Handbook.
*
* @since 2.2.0
*
* @global array $wp_registered_widgets The registered widgets.
* @global array $wp_registered_sidebars The registered sidebars.
*
* @return bool True if using widgets, false otherwise.
*/
function is_dynamic_sidebar() {
global $wp_registered_widgets, $wp_registered_sidebars;
$sidebars_widgets = get_option( 'sidebars_widgets' );
foreach ( (array) $wp_registered_sidebars as $index => $sidebar ) {
if ( ! empty( $sidebars_widgets[ $index ] ) ) {
foreach ( (array) $sidebars_widgets[ $index ] as $widget ) {
if ( array_key_exists( $widget, $wp_registered_widgets ) ) {
return true;
}
}
}
}
return false;
}
/**
* Determines whether a sidebar contains widgets.
*
* For more information on this and similar theme functions, check out
* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
* Conditional Tags} article in the Theme Developer Handbook.
*
* @since 2.8.0
*
* @param string|int $index Sidebar name, id or number to check.
* @return bool True if the sidebar has widgets, false otherwise.
*/
function is_active_sidebar( $index ) {
$index = ( is_int( $index ) ) ? "sidebar-$index" : sanitize_title( $index );
$sidebars_widgets = wp_get_sidebars_widgets();
$is_active_sidebar = ! empty( $sidebars_widgets[ $index ] );
/**
* Filters whether a dynamic sidebar is considered "active".
*
* @since 3.9.0
*
* @param bool $is_active_sidebar Whether or not the sidebar should be considered "active".
* In other words, whether the sidebar contains any widgets.
* @param int|string $index Index, name, or ID of the dynamic sidebar.
*/
return apply_filters( 'is_active_sidebar', $is_active_sidebar, $index );
}
//
// Internal Functions.
//
/**
* Retrieves the full list of sidebars and their widget instance IDs.
*
* Will upgrade sidebar widget list, if needed. Will also save updated list, if
* needed.
*
* @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.
*/
function wp_get_sidebars_widgets( $deprecated = true ) {
if ( true !== $deprecated ) {
_deprecated_argument( __FUNCTION__, '2.8.1' );
}
global $_wp_sidebars_widgets, $sidebars_widgets;
/*
* If loading from front page, consult $_wp_sidebars_widgets rather than options
* to see if wp_convert_widget_settings() has made manipulations in memory.
*/
if ( ! is_admin() ) {
if ( empty( $_wp_sidebars_widgets ) ) {
$_wp_sidebars_widgets = get_option( 'sidebars_widgets', array() );
}
$sidebars_widgets = $_wp_sidebars_widgets;
} else {
$sidebars_widgets = get_option( 'sidebars_widgets', array() );
}
if ( is_array( $sidebars_widgets ) && isset( $sidebars_widgets['array_version'] ) ) {
unset( $sidebars_widgets['array_version'] );
}
/**
* Filters the list of sidebars and their widgets.
*
* @since 2.7.0
*
* @param array $sidebars_widgets An associative array of sidebars and their widgets.
*/
return apply_filters( 'sidebars_widgets', $sidebars_widgets );
}
/**
* Retrieves the registered sidebar with the given ID.
*
* @since 5.9.0
*
* @global array $wp_registered_sidebars The registered sidebars.
*
* @param string $id The sidebar ID.
* @return array|null The discovered sidebar, or null if it is not registered.
*/
function wp_get_sidebar( $id ) {
global $wp_registered_sidebars;
foreach ( (array) $wp_registered_sidebars as $sidebar ) {
if ( $sidebar['id'] === $id ) {
return $sidebar;
}
}
if ( 'wp_inactive_widgets' === $id ) {
return array(
'id' => 'wp_inactive_widgets',
'name' => __( 'Inactive widgets' ),
);
}
return null;
}
/**
* Sets the sidebar widget option to update sidebars.
*
* @since 2.2.0
* @access private
*
* @global array $_wp_sidebars_widgets
* @param array $sidebars_widgets Sidebar widgets and their settings.
*/
function wp_set_sidebars_widgets( $sidebars_widgets ) {
global $_wp_sidebars_widgets;
// Clear cached value used in wp_get_sidebars_widgets().
$_wp_sidebars_widgets = null;
if ( ! isset( $sidebars_widgets['array_version'] ) ) {
$sidebars_widgets['array_version'] = 3;
}
update_option( 'sidebars_widgets', $sidebars_widgets );
}
/**
* Retrieves default registered sidebars list.
*
* @since 2.2.0
* @access private
*
* @global array $wp_registered_sidebars The registered sidebars.
*
* @return array
*/
function wp_get_widget_defaults() {
global $wp_registered_sidebars;
$defaults = array();
foreach ( (array) $wp_registered_sidebars as $index => $sidebar ) {
$defaults[ $index ] = array();
}
return $defaults;
}
/**
* Converts the widget settings from single to multi-widget format.
*
* @since 2.8.0
*
* @global array $_wp_sidebars_widgets
*
* @param string $base_name Root ID for all widgets of this type.
* @param string $option_name Option name for this widget type.
* @param array $settings The array of widget instance settings.
* @return array The array of widget settings converted to multi-widget format.
*/
function wp_convert_widget_settings( $base_name, $option_name, $settings ) {
// This test may need expanding.
$single = false;
$changed = false;
if ( empty( $settings ) ) {
$single = true;
} else {
foreach ( array_keys( $settings ) as $number ) {
if ( 'number' === $number ) {
continue;
}
if ( ! is_numeric( $number ) ) {
$single = true;
break;
}
}
}
if ( $single ) {
$settings = array( 2 => $settings );
// If loading from the front page, update sidebar in memory but don't save to options.
if ( is_admin() ) {
$sidebars_widgets = get_option( 'sidebars_widgets' );
} else {
if ( empty( $GLOBALS['_wp_sidebars_widgets'] ) ) {
$GLOBALS['_wp_sidebars_widgets'] = get_option( 'sidebars_widgets', array() );
}
$sidebars_widgets = &$GLOBALS['_wp_sidebars_widgets'];
}
foreach ( (array) $sidebars_widgets as $index => $sidebar ) {
if ( is_array( $sidebar ) ) {
foreach ( $sidebar as $i => $name ) {
if ( $base_name === $name ) {
$sidebars_widgets[ $index ][ $i ] = "$name-2";
$changed = true;
break 2;
}
}
}
}
if ( is_admin() && $changed ) {
update_option( 'sidebars_widgets', $sidebars_widgets );
}
}
$settings['_multiwidget'] = 1;
if ( is_admin() ) {
update_option( $option_name, $settings );
}
return $settings;
}
/**
* Outputs an arbitrary widget as a template tag.
*
* @since 2.8.0
*
* @global WP_Widget_Factory $wp_widget_factory
*
* @param string $widget The widget's PHP class name (see class-wp-widget.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 `<div class="widget %s">`, 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 `</div>`.
* @type string $before_title HTML content that will be prepended to the widget's title when displayed.
* Default `<h2 class="widgettitle">`.
* @type string $after_title HTML content that will be appended to the widget's title when displayed.
* Default `</h2>`.
* }
*/
function the_widget( $widget, $instance = array(), $args = array() ) {
global $wp_widget_factory;
if ( ! isset( $wp_widget_factory->widgets[ $widget ] ) ) {
_doing_it_wrong(
__FUNCTION__,
sprintf(
/* translators: %s: register_widget() */
__( 'Widgets need to be registered using %s, before they can be displayed.' ),
'<code>register_widget()</code>'
),
'4.9.0'
);
return;
}
$widget_obj = $wp_widget_factory->widgets[ $widget ];
if ( ! ( $widget_obj instanceof WP_Widget ) ) {
return;
}
$default_args = array(
'before_widget' => '<div class="widget %s">',
'after_widget' => '</div>',
'before_title' => '<h2 class="widgettitle">',
'after_title' => '</h2>',
);
$args = wp_parse_args( $args, $default_args );
$args['before_widget'] = sprintf( $args['before_widget'], $widget_obj->widget_options['classname'] );
$instance = wp_parse_args( $instance );
/** This filter is documented in wp-includes/class-wp-widget.php */
$instance = apply_filters( 'widget_display_callback', $instance, $widget_obj, $args );
if ( false === $instance ) {
return;
}
/**
* Fires before rendering the requested widget.
*
* @since 3.0.0
*
* @param string $widget The widget's class name.
* @param array $instance The current widget instance's settings.
* @param array $args An array of the widget's sidebar arguments.
*/
do_action( 'the_widget', $widget, $instance, $args );
$widget_obj->_set( -1 );
$widget_obj->widget( $args, $instance );
}
/**
* Retrieves the widget ID base value.
*
* @since 2.8.0
*
* @param string $id Widget ID.
* @return string Widget ID base.
*/
function _get_widget_id_base( $id ) {
return preg_replace( '/-[0-9]+$/', '', $id );
}
/**
* Handles sidebars config after theme change.
*
* @access private
* @since 3.3.0
*
* @global array $sidebars_widgets
*/
function _wp_sidebars_changed() {
global $sidebars_widgets;
if ( ! is_array( $sidebars_widgets ) ) {
$sidebars_widgets = wp_get_sidebars_widgets();
}
retrieve_widgets( true );
}
/**
* Validates and remaps any "orphaned" widgets to wp_inactive_widgets sidebar,
* and saves the widget settings. This has to run at least on each theme change.
*
* For example, let's say theme A has a "footer" sidebar, and theme B doesn't have one.
* After switching from theme A to theme B, all the widgets previously assigned
* to the footer would be inaccessible. This function detects this scenario, and
* moves all the widgets previously assigned to the footer under wp_inactive_widgets.
*
* Despite the word "retrieve" in the name, this function actually updates the database
* and the global `$sidebars_widgets`. For that reason it should not be run on front end,
* unless the `$theme_changed` value is 'customize' (to bypass the database write).
*
* @since 2.8.0
*
* @global array $wp_registered_sidebars The registered sidebars.
* @global array $sidebars_widgets
* @global array $wp_registered_widgets The 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 Updated sidebars widgets.
*/
function retrieve_widgets( $theme_changed = false ) {
global $wp_registered_sidebars, $sidebars_widgets, $wp_registered_widgets;
$registered_sidebars_keys = array_keys( $wp_registered_sidebars );
$registered_widgets_ids = array_keys( $wp_registered_widgets );
if ( ! is_array( get_theme_mod( 'sidebars_widgets' ) ) ) {
if ( empty( $sidebars_widgets ) ) {
return array();
}
unset( $sidebars_widgets['array_version'] );
$sidebars_widgets_keys = array_keys( $sidebars_widgets );
sort( $sidebars_widgets_keys );
sort( $registered_sidebars_keys );
if ( $sidebars_widgets_keys === $registered_sidebars_keys ) {
$sidebars_widgets = _wp_remove_unregistered_widgets( $sidebars_widgets, $registered_widgets_ids );
return $sidebars_widgets;
}
}
// Discard invalid, theme-specific widgets from sidebars.
$sidebars_widgets = _wp_remove_unregistered_widgets( $sidebars_widgets, $registered_widgets_ids );
$sidebars_widgets = wp_map_sidebars_widgets( $sidebars_widgets );
// Replace non-array values inside the array with an empty array.
foreach ( $sidebars_widgets as $key => $value ) {
if ( ! is_array( $value ) ) {
$sidebars_widgets[ $key ] = array();
}
}
// Find hidden/lost multi-widget instances.
$shown_widgets = array_merge( ...array_values( $sidebars_widgets ) );
$lost_widgets = array_diff( $registered_widgets_ids, $shown_widgets );
foreach ( $lost_widgets as $key => $widget_id ) {
$number = preg_replace( '/.+?-([0-9]+)$/', '$1', $widget_id );
// Only keep active and default widgets.
if ( is_numeric( $number ) && (int) $number < 2 ) {
unset( $lost_widgets[ $key ] );
}
}
$sidebars_widgets['wp_inactive_widgets'] = array_merge( $lost_widgets, (array) $sidebars_widgets['wp_inactive_widgets'] );
if ( 'customize' !== $theme_changed ) {
// Update the widgets settings in the database.
wp_set_sidebars_widgets( $sidebars_widgets );
}
return $sidebars_widgets;
}
/**
* Compares a list of sidebars with their widgets against an allowed list.
*
* @since 4.9.0
* @since 4.9.2 Always tries to restore widget assignments from previous data, not just if sidebars needed mapping.
*
* @global array $wp_registered_sidebars The registered sidebars.
*
* @param array $existing_sidebars_widgets List of sidebars and their widget instance IDs.
* @return array Mapped sidebars widgets.
*/
function wp_map_sidebars_widgets( $existing_sidebars_widgets ) {
global $wp_registered_sidebars;
$new_sidebars_widgets = array(
'wp_inactive_widgets' => array(),
);
// Short-circuit if there are no sidebars to map.
if ( ! is_array( $existing_sidebars_widgets ) || empty( $existing_sidebars_widgets ) ) {
return $new_sidebars_widgets;
}
foreach ( $existing_sidebars_widgets as $sidebar => $widgets ) {
if ( 'wp_inactive_widgets' === $sidebar || str_starts_with( $sidebar, 'orphaned_widgets' ) ) {
$new_sidebars_widgets['wp_inactive_widgets'] = array_merge( $new_sidebars_widgets['wp_inactive_widgets'], (array) $widgets );
unset( $existing_sidebars_widgets[ $sidebar ] );
}
}
// If old and new theme have just one sidebar, map it and we're done.
if ( 1 === count( $existing_sidebars_widgets ) && 1 === count( $wp_registered_sidebars ) ) {
$new_sidebars_widgets[ key( $wp_registered_sidebars ) ] = array_pop( $existing_sidebars_widgets );
return $new_sidebars_widgets;
}
// Map locations with the same slug.
$existing_sidebars = array_keys( $existing_sidebars_widgets );
foreach ( $wp_registered_sidebars as $sidebar => $name ) {
if ( in_array( $sidebar, $existing_sidebars, true ) ) {
$new_sidebars_widgets[ $sidebar ] = $existing_sidebars_widgets[ $sidebar ];
unset( $existing_sidebars_widgets[ $sidebar ] );
} elseif ( ! array_key_exists( $sidebar, $new_sidebars_widgets ) ) {
$new_sidebars_widgets[ $sidebar ] = array();
}
}
// If there are more sidebars, try to map them.
if ( ! empty( $existing_sidebars_widgets ) ) {
/*
* If old and new theme both have sidebars that contain phrases
* from within the same group, make an educated guess and map it.
*/
$common_slug_groups = array(
array( 'sidebar', 'primary', 'main', 'right' ),
array( 'second', 'left' ),
array( 'sidebar-2', 'footer', 'bottom' ),
array( 'header', 'top' ),
);
// Go through each group...
foreach ( $common_slug_groups as $slug_group ) {
// ...and see if any of these slugs...
foreach ( $slug_group as $slug ) {
// ...and any of the new sidebars...
foreach ( $wp_registered_sidebars as $new_sidebar => $args ) {
// ...actually match!
if ( false === stripos( $new_sidebar, $slug ) && false === stripos( $slug, $new_sidebar ) ) {
continue;
}
// Then see if any of the existing sidebars...
foreach ( $existing_sidebars_widgets as $sidebar => $widgets ) {
// ...and any slug in the same group...
foreach ( $slug_group as $slug ) {
// ... have a match as well.
if ( false === stripos( $sidebar, $slug ) && false === stripos( $slug, $sidebar ) ) {
continue;
}
// Make sure this sidebar wasn't mapped and removed previously.
if ( ! empty( $existing_sidebars_widgets[ $sidebar ] ) ) {
// We have a match that can be mapped!
$new_sidebars_widgets[ $new_sidebar ] = array_merge( $new_sidebars_widgets[ $new_sidebar ], $existing_sidebars_widgets[ $sidebar ] );
// Remove the mapped sidebar so it can't be mapped again.
unset( $existing_sidebars_widgets[ $sidebar ] );
// Go back and check the next new sidebar.
continue 3;
}
} // End foreach ( $slug_group as $slug ).
} // End foreach ( $existing_sidebars_widgets as $sidebar => $widgets ).
} // End foreach ( $wp_registered_sidebars as $new_sidebar => $args ).
} // End foreach ( $slug_group as $slug ).
} // End foreach ( $common_slug_groups as $slug_group ).
}
// Move any left over widgets to inactive sidebar.
foreach ( $existing_sidebars_widgets as $widgets ) {
if ( is_array( $widgets ) && ! empty( $widgets ) ) {
$new_sidebars_widgets['wp_inactive_widgets'] = array_merge( $new_sidebars_widgets['wp_inactive_widgets'], $widgets );
}
}
// Sidebars_widgets settings from when this theme was previously active.
$old_sidebars_widgets = get_theme_mod( 'sidebars_widgets' );
$old_sidebars_widgets = $old_sidebars_widgets['data'] ?? false;
if ( is_array( $old_sidebars_widgets ) ) {
// Remove empty sidebars, no need to map those.
$old_sidebars_widgets = array_filter( $old_sidebars_widgets );
// Only check sidebars that are empty or have not been mapped to yet.
foreach ( $new_sidebars_widgets as $new_sidebar => $new_widgets ) {
if ( array_key_exists( $new_sidebar, $old_sidebars_widgets ) && ! empty( $new_widgets ) ) {
unset( $old_sidebars_widgets[ $new_sidebar ] );
}
}
// Remove orphaned widgets, we're only interested in previously active sidebars.
foreach ( $old_sidebars_widgets as $sidebar => $widgets ) {
if ( str_starts_with( $sidebar, 'orphaned_widgets' ) ) {
unset( $old_sidebars_widgets[ $sidebar ] );
}
}
$old_sidebars_widgets = _wp_remove_unregistered_widgets( $old_sidebars_widgets );
// Replace non-array values inside the array with an empty array.
foreach ( $new_sidebars_widgets as $key => $value ) {
if ( ! is_array( $value ) ) {
$new_sidebars_widgets[ $key ] = array();
}
}
if ( ! empty( $old_sidebars_widgets ) ) {
// Go through each remaining sidebar...
foreach ( $old_sidebars_widgets as $old_sidebar => $old_widgets ) {
// ...and check every new sidebar...
foreach ( $new_sidebars_widgets as $new_sidebar => $new_widgets ) {
// ...for every widget we're trying to revive.
foreach ( $old_widgets as $key => $widget_id ) {
$active_key = array_search( $widget_id, $new_widgets, true );
// If the widget is used elsewhere...
if ( false !== $active_key ) {
// ...and that elsewhere is inactive widgets...
if ( 'wp_inactive_widgets' === $new_sidebar ) {
// ...remove it from there and keep the active version...
unset( $new_sidebars_widgets['wp_inactive_widgets'][ $active_key ] );
} else {
// ...otherwise remove it from the old sidebar and keep it in the new one.
unset( $old_sidebars_widgets[ $old_sidebar ][ $key ] );
}
} // End if ( $active_key ).
} // End foreach ( $old_widgets as $key => $widget_id ).
} // End foreach ( $new_sidebars_widgets as $new_sidebar => $new_widgets ).
} // End foreach ( $old_sidebars_widgets as $old_sidebar => $old_widgets ).
} // End if ( ! empty( $old_sidebars_widgets ) ).
// Restore widget settings from when theme was previously active.
$new_sidebars_widgets = array_merge( $new_sidebars_widgets, $old_sidebars_widgets );
}
return $new_sidebars_widgets;
}
/**
* Compares a list of sidebars with their widgets against an allowed list.
*
* @since 4.9.0
*
* @global array $wp_registered_widgets The registered widgets.
*
* @param array $sidebars_widgets List of sidebars and their widget instance IDs.
* @param array $allowed_widget_ids Optional. List of widget IDs to compare against. Default: Registered widgets.
* @return array Sidebars with allowed widgets.
*/
function _wp_remove_unregistered_widgets( $sidebars_widgets, $allowed_widget_ids = array() ) {
if ( empty( $allowed_widget_ids ) ) {
$allowed_widget_ids = array_keys( $GLOBALS['wp_registered_widgets'] );
}
foreach ( $sidebars_widgets as $sidebar => $widgets ) {
if ( is_array( $widgets ) ) {
$sidebars_widgets[ $sidebar ] = array_intersect( $widgets, $allowed_widget_ids );
}
}
return $sidebars_widgets;
}
/**
* Displays the RSS entries in a list.
*
* @since 2.5.0
*
* @param string|array|object $rss RSS url.
* @param array $args Widget arguments.
*/
function wp_widget_rss_output( $rss, $args = array() ) {
if ( is_string( $rss ) ) {
$rss = fetch_feed( $rss );
} elseif ( is_array( $rss ) && isset( $rss['url'] ) ) {
$args = $rss;
$rss = fetch_feed( $rss['url'] );
} elseif ( ! is_object( $rss ) ) {
return;
}
if ( is_wp_error( $rss ) ) {
if ( is_admin() || current_user_can( 'manage_options' ) ) {
echo '<p><strong>' . __( 'RSS Error:' ) . '</strong> ' . esc_html( $rss->get_error_message() ) . '</p>';
}
return;
}
$default_args = array(
'show_author' => 0,
'show_date' => 0,
'show_summary' => 0,
'items' => 0,
);
$args = wp_parse_args( $args, $default_args );
$items = (int) $args['items'];
if ( $items < 1 || 20 < $items ) {
$items = 10;
}
$show_summary = (int) $args['show_summary'];
$show_author = (int) $args['show_author'];
$show_date = (int) $args['show_date'];
if ( ! $rss->get_item_quantity() ) {
echo '<ul><li>' . __( 'An error has occurred, which probably means the feed is down. Try again later.' ) . '</li></ul>';
$rss->__destruct();
unset( $rss );
return;
}
echo '<ul>';
foreach ( $rss->get_items( 0, $items ) as $item ) {
$link = $item->get_link();
while ( ! empty( $link ) && stristr( $link, 'http' ) !== $link ) {
$link = substr( $link, 1 );
}
$link = esc_url( strip_tags( $link ) );
$title = esc_html( trim( strip_tags( $item->get_title() ) ) );
if ( empty( $title ) ) {
$title = __( 'Untitled' );
}
$desc = html_entity_decode( $item->get_description(), ENT_QUOTES, get_option( 'blog_charset' ) );
$desc = esc_attr( wp_trim_words( $desc, 55, ' […]' ) );
$summary = '';
if ( $show_summary ) {
$summary = $desc;
// Change existing [...] to […].
if ( str_ends_with( $summary, '[...]' ) ) {
$summary = substr( $summary, 0, -5 ) . '[…]';
}
$summary = '<div class="rssSummary">' . esc_html( $summary ) . '</div>';
}
$date = '';
if ( $show_date ) {
$date = $item->get_date( 'U' );
if ( $date ) {
$date = ' <span class="rss-date">' . date_i18n( get_option( 'date_format' ), $date ) . '</span>';
}
}
$author = '';
if ( $show_author ) {
$author = $item->get_author();
if ( is_object( $author ) ) {
$author = $author->get_name();
$author = ' <cite>' . esc_html( strip_tags( $author ) ) . '</cite>';
}
}
if ( '' === $link ) {
echo "<li>$title{$date}{$summary}{$author}</li>";
} elseif ( $show_summary ) {
echo "<li><a class='rsswidget' href='$link'>$title</a>{$date}{$summary}{$author}</li>";
} else {
echo "<li><a class='rsswidget' href='$link'>$title</a>{$date}{$author}</li>";
}
}
echo '</ul>';
$rss->__destruct();
unset( $rss );
}
/**
* Displays RSS widget options form.
*
* The options for what fields are displayed for the RSS form are all booleans
* and are as follows: 'url', 'title', 'items', 'show_summary', 'show_author',
* 'show_date'.
*
* @since 2.5.0
*
* @param array|string $args Values for input fields.
* @param array $inputs Override default display options.
*/
function wp_widget_rss_form( $args, $inputs = null ) {
$default_inputs = array(
'url' => true,
'title' => true,
'items' => true,
'show_summary' => true,
'show_author' => true,
'show_date' => true,
);
$inputs = wp_parse_args( $inputs, $default_inputs );
$args['title'] = $args['title'] ?? '';
$args['url'] = $args['url'] ?? '';
$args['items'] = (int) ( $args['items'] ?? 0 );
if ( $args['items'] < 1 || 20 < $args['items'] ) {
$args['items'] = 10;
}
$args['show_summary'] = (int) ( $args['show_summary'] ?? $inputs['show_summary'] );
$args['show_author'] = (int) ( $args['show_author'] ?? $inputs['show_author'] );
$args['show_date'] = (int) ( $args['show_date'] ?? $inputs['show_date'] );
if ( ! empty( $args['error'] ) ) {
echo '<p class="widget-error"><strong>' . __( 'RSS Error:' ) . '</strong> ' . esc_html( $args['error'] ) . '</p>';
}
$esc_number = esc_attr( $args['number'] );
if ( $inputs['url'] ) :
?>
<p><label for="rss-url-<?php echo $esc_number; ?>"><?php _e( 'Enter the RSS feed URL here:' ); ?></label>
<input class="widefat" id="rss-url-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][url]" type="text" value="<?php echo esc_url( $args['url'] ); ?>" /></p>
<?php endif; if ( $inputs['title'] ) : ?>
<p><label for="rss-title-<?php echo $esc_number; ?>"><?php _e( 'Give the feed a title (optional):' ); ?></label>
<input class="widefat" id="rss-title-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][title]" type="text" value="<?php echo esc_attr( $args['title'] ); ?>" /></p>
<?php endif; if ( $inputs['items'] ) : ?>
<p><label for="rss-items-<?php echo $esc_number; ?>"><?php _e( 'How many items would you like to display?' ); ?></label>
<select id="rss-items-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][items]">
<?php
for ( $i = 1; $i <= 20; ++$i ) {
echo "<option value='$i' " . selected( $args['items'], $i, false ) . ">$i</option>";
}
?>
</select></p>
<?php endif; if ( $inputs['show_summary'] || $inputs['show_author'] || $inputs['show_date'] ) : ?>
<p>
<?php if ( $inputs['show_summary'] ) : ?>
<input id="rss-show-summary-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][show_summary]" type="checkbox" value="1" <?php checked( $args['show_summary'] ); ?> />
<label for="rss-show-summary-<?php echo $esc_number; ?>"><?php _e( 'Display item content?' ); ?></label><br />
<?php endif; if ( $inputs['show_author'] ) : ?>
<input id="rss-show-author-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][show_author]" type="checkbox" value="1" <?php checked( $args['show_author'] ); ?> />
<label for="rss-show-author-<?php echo $esc_number; ?>"><?php _e( 'Display item author if available?' ); ?></label><br />
<?php endif; if ( $inputs['show_date'] ) : ?>
<input id="rss-show-date-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][show_date]" type="checkbox" value="1" <?php checked( $args['show_date'] ); ?> />
<label for="rss-show-date-<?php echo $esc_number; ?>"><?php _e( 'Display item date?' ); ?></label><br />
<?php endif; ?>
</p>
<?php
endif; // End of display options.
foreach ( array_keys( $default_inputs ) as $input ) :
if ( 'hidden' === $inputs[ $input ] ) :
$id = str_replace( '_', '-', $input );
?>
<input type="hidden" id="rss-<?php echo esc_attr( $id ); ?>-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][<?php echo esc_attr( $input ); ?>]" value="<?php echo esc_attr( $args[ $input ] ); ?>" />
<?php
endif;
endforeach;
}
/**
* Processes RSS feed widget data and optionally retrieve feed items.
*
* The feed widget can not have more than 20 items or it will reset back to the
* default, which is 10.
*
* The resulting array has the feed title, feed url, feed link (from channel),
* feed items, error (if any), and whether to show summary, author, and date.
* All respectively in the order of the array elements.
*
* @since 2.5.0
*
* @param array $widget_rss RSS widget feed data. Expects unescaped data.
* @param bool $check_feed Optional. Whether to check feed for errors. Default true.
* @return array
*/
function wp_widget_rss_process( $widget_rss, $check_feed = true ) {
$items = (int) $widget_rss['items'];
if ( $items < 1 || 20 < $items ) {
$items = 10;
}
$url = sanitize_url( strip_tags( $widget_rss['url'] ) );
$title = trim( strip_tags( $widget_rss['title'] ?? '' ) );
$show_summary = (int) ( $widget_rss['show_summary'] ?? 0 );
$show_author = (int) ( $widget_rss['show_author'] ?? 0 );
$show_date = (int) ( $widget_rss['show_date'] ?? 0 );
$error = false;
$link = '';
if ( $check_feed ) {
$rss = fetch_feed( $url );
if ( is_wp_error( $rss ) ) {
$error = $rss->get_error_message();
} else {
$link = esc_url( strip_tags( $rss->get_permalink() ) );
while ( stristr( $link, 'http' ) !== $link ) {
$link = substr( $link, 1 );
}
$rss->__destruct();
unset( $rss );
}
}
return compact( 'title', 'url', 'link', 'items', 'error', 'show_summary', 'show_author', 'show_date' );
}
/**
* Registers all of the default WordPress widgets on startup.
*
* Calls {@see 'widgets_init'} action after all of the WordPress widgets have been registered.
*
* @since 2.2.0
*/
function wp_widgets_init() {
if ( ! is_blog_installed() ) {
return;
}
register_widget( 'WP_Widget_Pages' );
register_widget( 'WP_Widget_Calendar' );
register_widget( 'WP_Widget_Archives' );
if ( get_option( 'link_manager_enabled' ) ) {
register_widget( 'WP_Widget_Links' );
}
register_widget( 'WP_Widget_Media_Audio' );
register_widget( 'WP_Widget_Media_Image' );
register_widget( 'WP_Widget_Media_Gallery' );
register_widget( 'WP_Widget_Media_Video' );
register_widget( 'WP_Widget_Meta' );
register_widget( 'WP_Widget_Search' );
register_widget( 'WP_Widget_Text' );
register_widget( 'WP_Widget_Categories' );
register_widget( 'WP_Widget_Recent_Posts' );
register_widget( 'WP_Widget_Recent_Comments' );
register_widget( 'WP_Widget_RSS' );
register_widget( 'WP_Widget_Tag_Cloud' );
register_widget( 'WP_Nav_Menu_Widget' );
register_widget( 'WP_Widget_Custom_HTML' );
register_widget( 'WP_Widget_Block' );
/**
* Fires after all default WordPress widgets have been registered.
*
* @since 2.2.0
*/
do_action( 'widgets_init' );
}
/**
* Enables the widgets block editor. This is hooked into 'after_setup_theme' so
* that the block editor is enabled by default but can be disabled by themes.
*
* @since 5.8.0
*
* @access private
*/
function wp_setup_widgets_block_editor() {
add_theme_support( 'widgets-block-editor' );
}
/**
* Determines whether or not to use the block editor to manage widgets.
* Defaults to true unless a theme has removed support for widgets-block-editor
* or a plugin has filtered the return value of this function.
*
* @since 5.8.0
*
* @return bool Whether to use the block editor to manage widgets.
*/
function wp_use_widgets_block_editor() {
/**
* Filters whether to use the block editor to manage widgets.
*
* @since 5.8.0
*
* @param bool $use_widgets_block_editor Whether to use the block editor to manage widgets.
*/
return apply_filters(
'use_widgets_block_editor',
get_theme_support( 'widgets-block-editor' )
);
}
/**
* Converts a widget ID into its id_base and number components.
*
* @since 5.8.0
*
* @param string $id Widget ID.
* @return array Array containing a widget's id_base and number components.
*/
function wp_parse_widget_id( $id ) {
$parsed = array();
if ( preg_match( '/^(.+)-(\d+)$/', $id, $matches ) ) {
$parsed['id_base'] = $matches[1];
$parsed['number'] = (int) $matches[2];
} else {
// Likely an old single widget.
$parsed['id_base'] = $id;
}
return $parsed;
}
/**
* Finds the sidebar that a given widget belongs to.
*
* @since 5.8.0
*
* @param string $widget_id The widget ID to look for.
* @return string|null The found sidebar's ID, or null if it was not found.
*/
function wp_find_widgets_sidebar( $widget_id ) {
foreach ( wp_get_sidebars_widgets() as $sidebar_id => $widget_ids ) {
foreach ( $widget_ids as $maybe_widget_id ) {
if ( $maybe_widget_id === $widget_id ) {
return (string) $sidebar_id;
}
}
}
return null;
}
/**
* Assigns a widget to the given sidebar.
*
* @since 5.8.0
*
* @param string $widget_id The widget ID to assign.
* @param string $sidebar_id The sidebar ID to assign to. If empty, the widget won't be added to any sidebar.
*/
function wp_assign_widget_to_sidebar( $widget_id, $sidebar_id ) {
$sidebars = wp_get_sidebars_widgets();
foreach ( $sidebars as $maybe_sidebar_id => $widgets ) {
foreach ( $widgets as $i => $maybe_widget_id ) {
if ( $widget_id === $maybe_widget_id && $sidebar_id !== $maybe_sidebar_id ) {
unset( $sidebars[ $maybe_sidebar_id ][ $i ] );
// We could technically break 2 here, but continue looping in case the ID is duplicated.
continue 2;
}
}
}
if ( $sidebar_id ) {
$sidebars[ $sidebar_id ][] = $widget_id;
}
wp_set_sidebars_widgets( $sidebars );
}
/**
* Calls the render callback of a widget and returns the output.
*
* @since 5.8.0
*
* @global array $wp_registered_widgets The registered widgets.
* @global array $wp_registered_sidebars The registered sidebars.
*
* @param string $widget_id Widget ID.
* @param string $sidebar_id Sidebar ID.
* @return string
*/
function wp_render_widget( $widget_id, $sidebar_id ) {
global $wp_registered_widgets, $wp_registered_sidebars;
if ( ! isset( $wp_registered_widgets[ $widget_id ] ) ) {
return '';
}
if ( isset( $wp_registered_sidebars[ $sidebar_id ] ) ) {
$sidebar = $wp_registered_sidebars[ $sidebar_id ];
} elseif ( 'wp_inactive_widgets' === $sidebar_id ) {
$sidebar = array();
} else {
return '';
}
$params = array_merge(
array(
array_merge(
$sidebar,
array(
'widget_id' => $widget_id,
'widget_name' => $wp_registered_widgets[ $widget_id ]['name'],
)
),
),
(array) $wp_registered_widgets[ $widget_id ]['params']
);
// Substitute HTML `id` and `class` attributes into `before_widget`.
$classname_ = '';
foreach ( (array) $wp_registered_widgets[ $widget_id ]['classname'] as $cn ) {
if ( is_string( $cn ) ) {
$classname_ .= '_' . $cn;
} elseif ( is_object( $cn ) ) {
$classname_ .= '_' . get_class( $cn );
}
}
$classname_ = ltrim( $classname_, '_' );
$params[0]['before_widget'] = sprintf( $params[0]['before_widget'], $widget_id, $classname_ );
/** This filter is documented in wp-includes/widgets.php */
$params = apply_filters( 'dynamic_sidebar_params', $params );
$callback = $wp_registered_widgets[ $widget_id ]['callback'];
ob_start();
/** This filter is documented in wp-includes/widgets.php */
do_action( 'dynamic_sidebar', $wp_registered_widgets[ $widget_id ] );
if ( is_callable( $callback ) ) {
call_user_func_array( $callback, $params );
}
return ob_get_clean();
}
/**
* Calls the control callback of a widget and returns the output.
*
* @since 5.8.0
*
* @global array $wp_registered_widget_controls The registered widget controls.
*
* @param string $id Widget ID.
* @return string|null
*/
function wp_render_widget_control( $id ) {
global $wp_registered_widget_controls;
if ( ! isset( $wp_registered_widget_controls[ $id ]['callback'] ) ) {
return null;
}
$callback = $wp_registered_widget_controls[ $id ]['callback'];
$params = $wp_registered_widget_controls[ $id ]['params'];
ob_start();
if ( is_callable( $callback ) ) {
call_user_func_array( $callback, $params );
}
return ob_get_clean();
}
/**
* Displays a _doing_it_wrong() message for conflicting widget editor scripts.
*
* The 'wp-editor' script module is exposed as window.wp.editor. This overrides
* the legacy TinyMCE editor module which is required by the widgets editor.
* Because of that conflict, these two shouldn't be enqueued together.
* See https://core.trac.wordpress.org/ticket/53569.
*
* There is also another conflict related to styles where the block widgets
* editor is hidden if a block enqueues 'wp-edit-post' stylesheet.
* See https://core.trac.wordpress.org/ticket/53569.
*
* @since 5.8.0
* @access private
*
* @global WP_Scripts $wp_scripts
* @global WP_Styles $wp_styles
*/
function wp_check_widget_editor_deps() {
global $wp_scripts, $wp_styles;
if (
$wp_scripts->query( 'wp-edit-widgets', 'enqueued' ) ||
$wp_scripts->query( 'wp-customize-widgets', 'enqueued' )
) {
if ( $wp_scripts->query( 'wp-editor', 'enqueued' ) ) {
_doing_it_wrong(
'wp_enqueue_script()',
sprintf(
/* translators: 1: 'wp-editor', 2: 'wp-edit-widgets', 3: 'wp-customize-widgets'. */
__( '"%1$s" script should not be enqueued together with the new widgets editor (%2$s or %3$s).' ),
'wp-editor',
'wp-edit-widgets',
'wp-customize-widgets'
),
'5.8.0'
);
}
if ( $wp_styles->query( 'wp-edit-post', 'enqueued' ) ) {
_doing_it_wrong(
'wp_enqueue_style()',
sprintf(
/* translators: 1: 'wp-edit-post', 2: 'wp-edit-widgets', 3: 'wp-customize-widgets'. */
__( '"%1$s" style should not be enqueued together with the new widgets editor (%2$s or %3$s).' ),
'wp-edit-post',
'wp-edit-widgets',
'wp-customize-widgets'
),
'5.8.0'
);
}
}
}
/**
* Registers the previous theme's sidebars for the block themes.
*
* @since 6.2.0
* @access private
*
* @global array $wp_registered_sidebars The registered sidebars.
*/
function _wp_block_theme_register_classic_sidebars() {
global $wp_registered_sidebars;
if ( ! wp_is_block_theme() ) {
return;
}
$classic_sidebars = get_theme_mod( 'wp_classic_sidebars' );
if ( empty( $classic_sidebars ) ) {
return;
}
// Don't use `register_sidebar` since it will enable the `widgets` support for a theme.
foreach ( $classic_sidebars as $sidebar ) {
$wp_registered_sidebars[ $sidebar['id'] ] = $sidebar;
}
}
Won’t you like to date before you get married? The simple reason is that you would want to know the other person. Similarly, before investing in your brand, product, or service, customers like to know all about your brand. Hence, brand awareness is a must, and trust us… it isn’t a cakewalk!
To facilitate stronger connections between a brand’s image and its audience, we identify evidence-based, practical ideas. Our strategy quarterbacks are strong on data integrity and light on pontification.
On a spree to get every client a unique hold in the market, we conduct various activities to share tailored marketing messages and offers to individual customers through emailers, surveys, referral programs, sweepstakes, and more.
We’re not your typical performance marketing agency. We’re the innovators injecting creativity and data-driven brilliance into our strategies. With our content wizards, we weave captivating narratives that shine across platforms.
We specialize in empowering businesses with impactful content marketing solutions. We go beyond content creation, offering comprehensive content strategies and tailored distribution tactics to maximize reach and engagement.
Promotional marketing promotes new products, demonstrates to consumers their special attributes, establishes a brand, and boosts sales for a business. Reaching out to potential clients who aren’t familiar with the business may be possible if you comprehend the promotional marketing approach to employ in a campaign.
First and foremost you need to analyze your requirements and objectives while choosing a promotional marketing company. Check if the company has experience in your industry or niche. For example, if you are a tech start-up, you need a company that has experience in developing and scaling tech businesses. Evaluate their approach, and assess their team, Finally, check the rates and fees charged by the company to ensure that they align with your budget. However, don’t compromise quality for cost-saving as it might cost you in the long run
