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root@pico committed 2015-05-01 21:20:47 +02:00
1 parent 70d2335bba
commit 7428b67da5
1086 files changed
+94145 -59082
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wp-includes/widgets.php
+334 -128
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@@ -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
@@ -23,45 +23,117 @@
*/
class WP_Widget {
public $id_base; // Root id for all widgets of this type.
public $name; // Name for this widget type.
public $widget_options; // Option array passed to wp_register_sidebar_widget()
public $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;
public $number = false; // Unique ID number of the current instance.
public $id = false; // Unique ID string of the current instance (id_base-number)
public $updated = false; // Set true when we update the data after a POST submit - makes sure we don't do it twice.
/**
* 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;
/**
* 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 $instance The settings for the particular instance of the widget.
*/
public function widget($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 $old_instance Old settings for this instance.
* @return array Settings to save or bool false to cancel saving.
*/
public function update($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 $instance Current settings.
* @return string Default return is 'noform'.
*/
public function form($instance) {
echo '<p class="no-options-widget">' . __('There are no options for this widget.') . '</p>';
@@ -71,17 +143,18 @@ class WP_Widget {
// Functions you'll need to call.
/**
* PHP5 constructor
* 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
* @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.
*/
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);
@@ -93,6 +166,11 @@ class WP_Widget {
/**
* PHP4 constructor
*
* @param string $id_base
* @param string $name
* @param array $widget_options
* @param array $control_options
*/
public function WP_Widget( $id_base, $name, $widget_options = array(), $control_options = array() ) {
WP_Widget::__construct( $id_base, $name, $widget_options, $control_options );
@@ -111,19 +189,27 @@ class WP_Widget {
}
/**
* 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`.
*/
public 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.
/**
* Register all widget instances of this widget class.
*
* @since 2.8.0
* @access private
*/
public function _register() {
$settings = $this->get_settings();
$empty = true;
@@ -146,6 +232,15 @@ class WP_Widget {
}
}
/**
* 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;
@@ -164,23 +259,40 @@ class WP_Widget {
}
/**
* 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
*
* @return bool True if Customizer is on, false if not.
* @return bool True if within the Customizer preview, false if not.
*/
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. */
/**
* 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 );
@@ -223,11 +335,12 @@ 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.
* @param int $deprecated Not used.
*/
public function update_callback( $deprecated = 1 ) {
global $wp_registered_widgets;
@@ -305,9 +418,12 @@ 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.
*/
public function form_callback( $widget_args = 1 ) {
if ( is_numeric($widget_args) )
@@ -362,19 +478,44 @@ class WP_Widget {
return $return;
}
/** Helper function: Registers a single instance. */
public function _register_one($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' => $number ) );
}
public function save_settings($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 );
}
/**
* 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) )
@@ -407,15 +548,37 @@ class WP_Widget_Factory {
add_action( 'widgets_init', array( $this, '_register_widgets' ), 100 );
}
public function register($widget_class) {
/**
* 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 $widget_class();
}
public function unregister($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( $widget_class ) {
if ( isset($this->widgets[$widget_class]) )
unset($this->widgets[$widget_class]);
}
/**
* Utility method for adding widgets to the registered widgets global.
*
* @since 2.8.0
* @access public
*/
public function _register_widgets() {
global $wp_registered_widgets;
$keys = array_keys($this->widgets);
@@ -543,25 +706,26 @@ 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.
* @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) $number;
@@ -608,32 +772,30 @@ function register_sidebars($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()) {
@@ -641,6 +803,8 @@ 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",
@@ -654,6 +818,11 @@ 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.' ), '<code>id</code>', $sidebar['name'], $sidebar['id'] ), '4.2.0' );
}
$wp_registered_sidebars[$sidebar['id']] = $sidebar;
add_theme_support('widgets');
@@ -687,26 +856,32 @@ function unregister_sidebar( $name ) {
}
/**
* Register widget for use in sidebars.
* Register 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 $output_callback
* The function can also be used to un-register widgets when `$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.
* @global array $wp_registered_widgets Uses stored registered widgets.
* @global array $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.
* @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 $description Widget description for display in the widget administration
* panel and/or theme.
* }
* @return null Will return if `$output_callback` is empty after removing widget.
*/
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);
@@ -781,7 +956,7 @@ function wp_widget_description( $id ) {
*
* @since 2.9.0
*
* @param int|string $id sidebar ID.
* @param string $id sidebar ID.
* @return string Sidebar description, if available. Null on failure to retrieve description.
*/
function wp_sidebar_description( $id ) {
@@ -824,17 +999,19 @@ function wp_unregister_sidebar_widget($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?
*
* @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);
@@ -881,6 +1058,13 @@ 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 $wp_registered_widget_updates;
@@ -899,6 +1083,15 @@ function _register_widget_update_callback($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 $options
* @return null
*/
function _register_widget_form_callback($id, $name, $form_callback, $options = array()) {
global $wp_registered_widget_controls;
@@ -932,7 +1125,6 @@ function _register_widget_form_callback($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.
*/
@@ -1184,7 +1376,7 @@ 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 ) {
@@ -1207,7 +1399,7 @@ 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.
@@ -1215,10 +1407,10 @@ function is_active_sidebar( $index ) {
* @since 2.2.0
* @access private
*
* @param bool $deprecated Not used (deprecated).
* @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' );
@@ -1287,6 +1479,9 @@ function wp_get_widget_defaults() {
*
* @since 2.8.0
*
* @param string $base_name
* @param string $option_name
* @param array $settings
* @return array
*/
function wp_convert_widget_settings($base_name, $option_name, $settings) {
@@ -1345,17 +1540,28 @@ function wp_convert_widget_settings($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()) {
* @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 `<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;
$widget_obj = $wp_widget_factory->widgets[$widget];
if ( !is_a($widget_obj, 'WP_Widget') )
if ( ! ( $widget_obj instanceof WP_Widget ) ) {
return;
}
$before_widget = sprintf('<div class="widget %s">', $widget_obj->widget_options['classname'] );
$default_args = array( 'before_widget' => $before_widget, 'after_widget' => "</div>", 'before_title' => '<h2 class="widgettitle">', 'after_title' => '</h2>' );
@@ -1405,8 +1611,8 @@ 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.
* @param string|bool $theme_changed Whether the theme was changed as a boolean. A value
* of 'customize' defers updates for the Customizer.
* @return array
*/
function retrieve_widgets( $theme_changed = false ) {