<?php
+/**
+ * API 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 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
+ *
+ * @package WordPress
+ * @subpackage Widgets
+ */
+
+/**
+ * This class must be extended for each widget and WP_Widget::widget(), WP_Widget::update()
+ * and WP_Widget::form() need to be over-ridden.
+ *
+ * @package WordPress
+ * @subpackage Widgets
+ * @since 2.8
+ */
+class WP_Widget {
+
+ var $id_base; // Root id for all widgets of this type.
+ var $name; // Name for this widget type.
+ var $widget_options; // Option array passed to wp_register_sidebar_widget()
+ var $control_options; // Option array passed to wp_register_widget_control()
+
+ var $number = false; // Unique ID number of the current instance.
+ var $id = false; // Unique ID string of the current instance (id_base-number)
+ var $updated = false; // Set true when we update the data after a POST submit - makes sure we don't do it twice.
+
+ // Member functions that you must over-ride.
+
+ /** 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 $instance The settings for the particular instance of the widget
+ */
+ function widget($args, $instance) {
+ die('function WP_Widget::widget() must be over-ridden in a sub-class.');
+ }
+
+ /** 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.
+ *
+ * @param array $new_instance New settings for this instance as input by the user via form()
+ * @param array $old_instance Old settings for this instance
+ * @return array Settings to save or bool false to cancel saving
+ */
+ function update($new_instance, $old_instance) {
+ return $new_instance;
+ }
+
+ /** Echo the settings update form
+ *
+ * @param array $instance Current settings
+ */
+ function form($instance) {
+ echo '<p class="no-options-widget">' . __('There are no options for this widget.') . '</p>';
+ return 'noform';
+ }
+
+ // Functions you'll need to call.
+
+ /**
+ * PHP4 constructor
+ */
+ function WP_Widget( $id_base = false, $name, $widget_options = array(), $control_options = array() ) {
+ WP_Widget::__construct( $id_base, $name, $widget_options, $control_options );
+ }
+
+ /**
+ * 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
+ */
+ function __construct( $id_base = false, $name, $widget_options = array(), $control_options = array() ) {
+ $this->id_base = empty($id_base) ? preg_replace( '/(wp_)?widget_/', '', strtolower(get_class($this)) ) : strtolower($id_base);
+ $this->name = $name;
+ $this->option_name = 'widget_' . $this->id_base;
+ $this->widget_options = wp_parse_args( $widget_options, array('classname' => $this->option_name) );
+ $this->control_options = wp_parse_args( $control_options, array('id_base' => $this->id_base) );
+ }
+
+ /**
+ * Constructs name attributes for use in form() fields
+ *
+ * This function should be used in form() methods to create name attributes for fields to be saved by update()
+ *
+ * @param string $field_name Field name
+ * @return string Name attribute for $field_name
+ */
+ function get_field_name($field_name) {
+ return 'widget-' . $this->id_base . '[' . $this->number . '][' . $field_name . ']';
+ }
+
+ /**
+ * Constructs id attributes for use in form() fields
+ *
+ * This function should be used in form() methods to create id attributes for fields to be saved by update()
+ *
+ * @param string $field_name Field name
+ * @return string ID attribute for $field_name
+ */
+ function get_field_id($field_name) {
+ return 'widget-' . $this->id_base . '-' . $this->number . '-' . $field_name;
+ }
+
+ // Private Functions. Don't worry about these.
+
+ function _register() {
+ $settings = $this->get_settings();
+ $empty = true;
+
+ if ( is_array($settings) ) {
+ foreach ( array_keys($settings) as $number ) {
+ if ( is_numeric($number) ) {
+ $this->_set($number);
+ $this->_register_one($number);
+ $empty = false;
+ }
+ }
+ }
+
+ if ( $empty ) {
+ // If there are none, we register the widget's existence with a
+ // generic template
+ $this->_set(1);
+ $this->_register_one();
+ }
+ }
+
+ function _set($number) {
+ $this->number = $number;
+ $this->id = $this->id_base . '-' . $number;
+ }
+
+ function _get_display_callback() {
+ return array($this, 'display_callback');
+ }
+
+ function _get_update_callback() {
+ return array($this, 'update_callback');
+ }
+
+ function _get_form_callback() {
+ return array($this, 'form_callback');
+ }
+
+ /** Generate the actual widget content.
+ * Just finds the instance and calls widget().
+ * Do NOT over-ride this function. */
+ function display_callback( $args, $widget_args = 1 ) {
+ if ( is_numeric($widget_args) )
+ $widget_args = array( 'number' => $widget_args );
+
+ $widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) );
+ $this->_set( $widget_args['number'] );
+ $instance = $this->get_settings();
+
+ if ( array_key_exists( $this->number, $instance ) ) {
+ $instance = $instance[$this->number];
+ // filters the widget's settings, return false to stop displaying the widget
+ $instance = apply_filters('widget_display_callback', $instance, $this, $args);
+ if ( false !== $instance )
+ $this->widget($args, $instance);
+ }
+ }
+
+ /** Deal with changed settings.
+ * Do NOT over-ride this function. */
+ function update_callback( $widget_args = 1 ) {
+ global $wp_registered_widgets;
+
+ if ( is_numeric($widget_args) )
+ $widget_args = array( 'number' => $widget_args );
+
+ $widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) );
+ $all_instances = $this->get_settings();
+
+ // We need to update the data
+ if ( $this->updated )
+ return;
+
+ $sidebars_widgets = wp_get_sidebars_widgets();
+
+ if ( isset($_POST['delete_widget']) && $_POST['delete_widget'] ) {
+ // Delete the settings for this instance of the widget
+ if ( isset($_POST['the-widget-id']) )
+ $del_id = $_POST['the-widget-id'];
+ else
+ return;
+
+ if ( isset($wp_registered_widgets[$del_id]['params'][0]['number']) ) {
+ $number = $wp_registered_widgets[$del_id]['params'][0]['number'];
+
+ if ( $this->id_base . '-' . $number == $del_id )
+ unset($all_instances[$number]);
+ }
+ } else {
+ if ( isset($_POST['widget-' . $this->id_base]) && is_array($_POST['widget-' . $this->id_base]) ) {
+ $settings = $_POST['widget-' . $this->id_base];
+ } elseif ( isset($_POST['id_base']) && $_POST['id_base'] == $this->id_base ) {
+ $num = $_POST['multi_number'] ? (int) $_POST['multi_number'] : (int) $_POST['widget_number'];
+ $settings = array( $num => array() );
+ } else {
+ return;
+ }
+
+ foreach ( $settings as $number => $new_instance ) {
+ $new_instance = stripslashes_deep($new_instance);
+ $this->_set($number);
+
+ $old_instance = isset($all_instances[$number]) ? $all_instances[$number] : array();
+
+ $instance = $this->update($new_instance, $old_instance);
+
+ // filters the widget's settings before saving, return false to cancel saving (keep the old settings if updating)
+ $instance = apply_filters('widget_update_callback', $instance, $new_instance, $old_instance, $this);
+ if ( false !== $instance )
+ $all_instances[$number] = $instance;
+
+ break; // run only once
+ }
+ }
+
+ $this->save_settings($all_instances);
+ $this->updated = true;
+ }
+
+ /** Generate the control form.
+ * Do NOT over-ride this function. */
+ function form_callback( $widget_args = 1 ) {
+ if ( is_numeric($widget_args) )
+ $widget_args = array( 'number' => $widget_args );
+
+ $widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) );
+ $all_instances = $this->get_settings();
+
+ if ( -1 == $widget_args['number'] ) {
+ // We echo out a form where 'number' can be set later
+ $this->_set('__i__');
+ $instance = array();
+ } else {
+ $this->_set($widget_args['number']);
+ $instance = $all_instances[ $widget_args['number'] ];
+ }
+
+ // filters the widget admin form before displaying, return false to stop displaying it
+ $instance = apply_filters('widget_form_callback', $instance, $this);
+
+ $return = null;
+ if ( false !== $instance ) {
+ $return = $this->form($instance);
+ // add extra fields in the widget form - be sure to set $return to null if you add any
+ // if the widget has no form the text echoed from the default form method can be hidden using css
+ do_action_ref_array( 'in_widget_form', array(&$this, &$return, $instance) );
+ }
+ return $return;
+ }
+
+ /** Helper function: Registers a single instance. */
+ function _register_one($number = -1) {
+ wp_register_sidebar_widget( $this->id, $this->name, $this->_get_display_callback(), $this->widget_options, array( 'number' => $number ) );
+ _register_widget_update_callback( $this->id_base, $this->_get_update_callback(), $this->control_options, array( 'number' => -1 ) );
+ _register_widget_form_callback( $this->id, $this->name, $this->_get_form_callback(), $this->control_options, array( 'number' => $number ) );
+ }
+
+ function save_settings($settings) {
+ $settings['_multiwidget'] = 1;
+ update_option( $this->option_name, $settings );
+ }
+
+ function get_settings() {
+ $settings = get_option($this->option_name);
+
+ if ( false === $settings && isset($this->alt_option_name) )
+ $settings = get_option($this->alt_option_name);
+
+ if ( !is_array($settings) )
+ $settings = array();
+
+ if ( !empty($settings) && !array_key_exists('_multiwidget', $settings) ) {
+ // old format, convert if single widget
+ $settings = wp_convert_widget_settings($this->id_base, $this->option_name, $settings);
+ }
+
+ unset($settings['_multiwidget'], $settings['__i__']);
+ return $settings;
+ }
+}
+
+/**
+ * Singleton that registers and instantiates WP_Widget classes.
+ *
+ * @package WordPress
+ * @subpackage Widgets
+ * @since 2.8
+ */
+class WP_Widget_Factory {
+ var $widgets = array();
+
+ function WP_Widget_Factory() {
+ add_action( 'widgets_init', array( $this, '_register_widgets' ), 100 );
+ }
+
+ function register($widget_class) {
+ $this->widgets[$widget_class] = new $widget_class();
+ }
+
+ function unregister($widget_class) {
+ if ( isset($this->widgets[$widget_class]) )
+ unset($this->widgets[$widget_class]);
+ }
+
+ function _register_widgets() {
+ global $wp_registered_widgets;
+ $keys = array_keys($this->widgets);
+ $registered = array_keys($wp_registered_widgets);
+ $registered = array_map('_get_widget_id_base', $registered);
+
+ foreach ( $keys as $key ) {
+ // don't register new widget if old widget with the same id is already registered
+ if ( in_array($this->widgets[$key]->id_base, $registered, true) ) {
+ unset($this->widgets[$key]);
+ continue;
+ }
+
+ $this->widgets[$key]->_register();
+ }
+ }
+}
/* Global Variables */
-global $wp_registered_sidebars, $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_widget_styles, $wp_registered_widget_defaults;
+/** @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.
+ *
+ * @global array $wp_registered_sidebars
+ * @since 2.2.0
+ */
$wp_registered_sidebars = array();
+
+/**
+ * Stores the registered widgets.
+ *
+ * @global array $wp_registered_widgets
+ * @since 2.2.0
+ */
$wp_registered_widgets = array();
+
+/**
+ * Stores the registered widget control (options).
+ *
+ * @global array $wp_registered_widget_controls
+ * @since 2.2.0
+ */
$wp_registered_widget_controls = array();
-$wp_registered_widget_styles = array();
-$wp_register_widget_defaults = false;
+$wp_registered_widget_updates = array();
+
+/**
+ * Private
+ */
+$_wp_sidebars_widgets = array();
+
+/**
+ * Private
+ */
+ $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 */
+/**
+ * Register a widget
+ *
+ * Registers a WP_Widget widget
+ *
+ * @since 2.8.0
+ *
+ * @see WP_Widget
+ * @see WP_Widget_Factory
+ * @uses WP_Widget_Factory
+ *
+ * @param string $widget_class The name of a class that extends WP_Widget
+ */
+function register_widget($widget_class) {
+ global $wp_widget_factory;
+
+ $wp_widget_factory->register($widget_class);
+}
+
+/**
+ * Unregister a widget
+ *
+ * Unregisters a WP_Widget widget. Useful for unregistering default widgets.
+ * Run within a function hooked to the widgets_init action.
+ *
+ * @since 2.8.0
+ *
+ * @see WP_Widget
+ * @see WP_Widget_Factory
+ * @uses WP_Widget_Factory
+ *
+ * @param string $widget_class The name of a class that extends WP_Widget
+ */
+function unregister_widget($widget_class) {
+ global $wp_widget_factory;
+
+ $wp_widget_factory->unregister($widget_class);
+}
+
+/**
+ * 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.
+ *
+ * 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.
+ *
+ * @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 $args Builds Sidebar based off of 'name' and 'id' values.
+ */
function register_sidebars($number = 1, $args = array()) {
+ global $wp_registered_sidebars;
$number = (int) $number;
if ( is_string($args) )
parse_str($args, $args);
- $i = 1;
-
- while ( $i <= $number ) {
+ for ( $i = 1; $i <= $number; $i++ ) {
$_args = $args;
- if ( $number > 1 ) {
- $_args['name'] = isset($args['name']) ? $args['name'] : sprintf(__('Sidebar %d'), $i);
- } else {
+
+ if ( $number > 1 )
+ $_args['name'] = isset($args['name']) ? sprintf($args['name'], $i) : sprintf(__('Sidebar %d'), $i);
+ else
$_args['name'] = isset($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'];
+ $n = 2; // Start at -2 for conflicting custom ID's
+ while ( isset($wp_registered_sidebars[$_args['id']]) )
+ $_args['id'] = $args['id'] . '-' . $n++;
+ } else {
+ $n = count($wp_registered_sidebars);
+ do {
+ $_args['id'] = 'sidebar-' . ++$n;
+ } while ( isset($wp_registered_sidebars[$_args['id']]) );
}
- $_args['id'] = isset($args['id']) ? $args['id'] : "sidebar-$i";
register_sidebar($_args);
- ++$i;
}
}
+/**
+ * Builds the definition for a single sidebar and returns the ID.
+ *
+ * The $args parameter takes either a string or an array with 'name' and 'id'
+ * contained in either usage. It will be noted that the values will be applied
+ * to all sidebars, so if creating more than one, it will be advised to allow
+ * for WordPress to create the defaults for you.
+ *
+ * Example for string would be <code>'name=whatever;id=whatever1'</code> and for
+ * the array it would be <code>array(
+ * 'name' => 'whatever',
+ * 'id' => 'whatever1')</code>.
+ *
+ * name - The name of the sidebar, which presumably the title which will be
+ * displayed.
+ * id - The unique identifier by which the sidebar will be called by.
+ * before_widget - The content that will prepended to the widgets when they are
+ * displayed.
+ * after_widget - The content that will be appended to the widgets when they are
+ * displayed.
+ * before_title - The content that will be prepended to the title when displayed.
+ * after_title - the content that will be appended to the title when displayed.
+ *
+ * <em>Content</em> is assumed to be HTML and should be formatted as such, but
+ * doesn't have to be.
+ *
+ * @since 2.2.0
+ * @uses $wp_registered_sidebars Stores the new sidebar in this array by sidebar ID.
+ *
+ * @param string|array $args Builds Sidebar based off of 'name' and 'id' values
+ * @return string The sidebar id that was added.
+ */
function register_sidebar($args = array()) {
global $wp_registered_sidebars;
- if ( is_string($args) )
- parse_str($args, $args);
-
$i = count($wp_registered_sidebars) + 1;
$defaults = array(
'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",
);
- $sidebar = array_merge($defaults, $args);
+ $sidebar = wp_parse_args( $args, $defaults );
$wp_registered_sidebars[$sidebar['id']] = $sidebar;
+ add_theme_support('widgets');
+
+ do_action( 'register_sidebar', $sidebar );
+
return $sidebar['id'];
}
+/**
+ * Removes a sidebar from the list.
+ *
+ * @since 2.2.0
+ *
+ * @uses $wp_registered_sidebars Stores the new sidebar in this array by sidebar ID.
+ *
+ * @param string $name The ID of the sidebar when it was added.
+ */
function unregister_sidebar( $name ) {
global $wp_registered_sidebars;
unset( $wp_registered_sidebars[$name] );
}
-function register_sidebar_widget($name, $output_callback, $classname = '') {
- // Compat
- if ( is_array($name) ) {
- if ( count($name) == 3 )
- $name = sprintf($name[0], $name[2]);
- else
- $name = $name[0];
- }
-
- $id = sanitize_title($name);
- $options = array();
- if ( !empty($classname) && is_string($classname) )
- $options['classname'] = $classname;
- $params = array_slice(func_get_args(), 2);
- $args = array($id, $name, $output_callback, $options);
- if ( !empty($params) )
- $args = array_merge($args, $params);
-
- call_user_func_array('wp_register_sidebar_widget', $args);
-}
-
+/**
+ * Register widget for use in sidebars.
+ *
+ * The default widget option is 'classname' that can be override.
+ *
+ * The function can also be used to unregister widgets when $output_callback
+ * parameter is an empty string.
+ *
+ * @since 2.2.0
+ *
+ * @uses $wp_registered_widgets Uses stored registered widgets.
+ * @uses $wp_register_widget_defaults Retrieves widget defaults.
+ *
+ * @param int|string $id Widget ID.
+ * @param string $name Widget display title.
+ * @param callback $output_callback Run when widget is called.
+ * @param array|string $options Optional. Widget Options.
+ * @param mixed $params,... Widget parameters to add to widget.
+ * @return null Will return if $output_callback is empty after removing widget.
+ */
function wp_register_sidebar_widget($id, $name, $output_callback, $options = array()) {
+ global $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_widget_updates, $_wp_deprecated_widgets_callbacks;
- global $wp_registered_widgets, $wp_register_widget_defaults;
-
- $id = sanitize_title($id);
+ $id = strtolower($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) ) {
+ if ( isset($wp_registered_widget_controls[$id]) )
+ unset($wp_registered_widget_controls[$id]);
+
+ if ( isset($wp_registered_widget_updates[$id_base]) )
+ unset($wp_registered_widget_updates[$id_base]);
+
+ return;
+ }
+
$defaults = array('classname' => $output_callback);
$options = wp_parse_args($options, $defaults);
$widget = array(
);
$widget = array_merge($widget, $options);
- if ( is_callable($output_callback) && ( !isset($wp_registered_widgets[$id]) || !$wp_register_widget_defaults) )
+ if ( is_callable($output_callback) && ( !isset($wp_registered_widgets[$id]) || did_action( 'widgets_init' ) ) ) {
+ do_action( 'wp_register_sidebar_widget', $widget );
$wp_registered_widgets[$id] = $widget;
+ }
+}
+
+/**
+ * Retrieve 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
+ *
+ * @param int|string $id Widget ID.
+ * @return string Widget description, if available. Null on failure to retrieve description.
+ */
+function wp_widget_description( $id ) {
+ if ( !is_scalar($id) )
+ return;
+
+ global $wp_registered_widgets;
+
+ if ( isset($wp_registered_widgets[$id]['description']) )
+ return esc_html( $wp_registered_widgets[$id]['description'] );
}
-function unregister_sidebar_widget($id) {
- return wp_unregister_sidebar_widget($id);
+/**
+ * Retrieve 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
+ *
+ * @param int|string $id sidebar ID.
+ * @return string Sidebar description, if available. Null on failure to retrieve description.
+ */
+function wp_sidebar_description( $id ) {
+ if ( !is_scalar($id) )
+ return;
+
+ global $wp_registered_sidebars;
+
+ if ( isset($wp_registered_sidebars[$id]['description']) )
+ return esc_html( $wp_registered_sidebars[$id]['description'] );
}
+/**
+ * Remove widget from sidebar.
+ *
+ * @since 2.2.0
+ *
+ * @param int|string $id Widget ID.
+ */
function wp_unregister_sidebar_widget($id) {
+ do_action( 'wp_unregister_sidebar_widget', $id );
+
wp_register_sidebar_widget($id, '', '');
wp_unregister_widget_control($id);
}
-function register_widget_control($name, $control_callback, $width = '', $height = '') {
- // Compat
- if ( is_array($name) ) {
- if ( count($name) == 3 )
- $name = sprintf($name[0], $name[2]);
- else
- $name = $name[0];
- }
-
- $id = sanitize_title($name);
- $options = array();
- if ( !empty($width) )
- $options['width'] = $width;
- if ( !empty($height) )
- $options['height'] = $height;
- $params = array_slice(func_get_args(), 4);
- $args = array($id, $name, $control_callback, $options);
- if ( !empty($params) )
- $args = array_merge($args, $params);
-
- call_user_func_array('wp_register_widget_control', $args);
-}
-
+/**
+ * Registers widget control callback for customizing options.
+ *
+ * The options contains the 'height', 'width', and 'id_base' keys. The 'height'
+ * option is never used. The 'width' option is the width of the fully expanded
+ * control form, but try hard to use the default width. The 'id_base' is for
+ * multi-widgets (widgets which allow multiple instances such as the text
+ * widget), an id_base must be provided. The widget id will end up looking like
+ * {$id_base}-{$unique_number}.
+ *
+ * @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 $params,... Optional. Additional parameters to add to widget.
+ */
function wp_register_widget_control($id, $name, $control_callback, $options = array()) {
- global $wp_registered_widget_controls, $wp_register_widget_defaults;
+ global $wp_registered_widget_controls, $wp_registered_widget_updates, $wp_registered_widgets, $_wp_deprecated_widgets_callbacks;
- $id = sanitize_title($id);
+ $id = strtolower($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) ) {
+ if ( isset($wp_registered_widgets[$id]) )
+ unset($wp_registered_widgets[$id]);
+
return;
}
- if ( isset($wp_registered_widget_controls[$id]) && $wp_register_widget_defaults )
+ if ( isset($wp_registered_widget_controls[$id]) && !did_action( 'widgets_init' ) )
return;
- $defaults = array('width' => 300, 'height' => 200);
+ $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'];
- $options['width'] = $options['width'] > 90 ? $options['width'] + 60 : 360;
- $options['height'] = $options['height'] > 60 ? $options['height'] + 40 : 240;
$widget = array(
'name' => $name,
$widget = array_merge($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] = $widget;
}
-function unregister_widget_control($id) {
- return wp_unregister_widget_control($id);
+function _register_widget_update_callback($id_base, $update_callback, $options = array()) {
+ 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' => array_slice(func_get_args(), 3)
+ );
+
+ $widget = array_merge($widget, $options);
+ $wp_registered_widget_updates[$id_base] = $widget;
}
+function _register_widget_form_callback($id, $name, $form_callback, $options = array()) {
+ 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' => array_slice(func_get_args(), 4)
+ );
+ $widget = array_merge($widget, $options);
+
+ $wp_registered_widget_controls[$id] = $widget;
+}
+
+/**
+ * Remove control callback for widget.
+ *
+ * @since 2.2.0
+ * @uses wp_register_widget_control() Unregisters by using empty callback.
+ *
+ * @param int|string $id Widget ID.
+ */
function wp_unregister_widget_control($id) {
return wp_register_widget_control($id, '', '');
}
+/**
+ * Display dynamic sidebar.
+ *
+ * By default it displays the default sidebar or 'sidebar-1'. The 'sidebar-1' is
+ * not named by the theme, the actual name is '1', but 'sidebar-' is added to
+ * the registered sidebars for the name. If you named your sidebar 'after-post',
+ * then the parameter $index will still be 'after-post', but the lookup will be
+ * for 'sidebar-after-post'.
+ *
+ * It is confusing for the $index parameter, but just know that it should just
+ * work. When you register the sidebar in the theme, you will use the same name
+ * for this function or "Pay no heed to the man behind the curtain." Just accept
+ * it as an oddity of WordPress sidebar register and display.
+ *
+ * @since 2.2.0
+ *
+ * @param int|string $index Optional, default is 1. Name or ID of dynamic sidebar.
+ * @return bool True, if widget sidebar was found and called. False if not found or not called.
+ */
function dynamic_sidebar($index = 1) {
global $wp_registered_sidebars, $wp_registered_widgets;
$index = "sidebar-$index";
} else {
$index = sanitize_title($index);
- foreach ( $wp_registered_sidebars as $key => $value ) {
+ 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( $sidebars_widgets ) )
+ return false;
- if ( empty($wp_registered_sidebars[$index]) || !is_array($sidebars_widgets[$index]) || empty($sidebars_widgets[$index]) )
+ if ( empty($wp_registered_sidebars[$index]) || !array_key_exists($index, $sidebars_widgets) || !is_array($sidebars_widgets[$index]) || empty($sidebars_widgets[$index]) )
return false;
$sidebar = $wp_registered_sidebars[$index];
$did_one = false;
- foreach ( $sidebars_widgets[$index] as $id ) {
- $callback = $wp_registered_widgets[$id]['callback'];
+ foreach ( (array) $sidebars_widgets[$index] as $id ) {
+
+ if ( !isset($wp_registered_widgets[$id]) ) continue;
- $params = array_merge(array($sidebar), (array) $wp_registered_widgets[$id]['params']);
+ $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_ = '';
$classname_ = ltrim($classname_, '_');
$params[0]['before_widget'] = sprintf($params[0]['before_widget'], $id, $classname_);
+ $params = apply_filters( 'dynamic_sidebar_params', $params );
+
+ $callback = $wp_registered_widgets[$id]['callback'];
+
+ do_action( 'dynamic_sidebar', $wp_registered_widgets[$id] );
+
if ( is_callable($callback) ) {
call_user_func_array($callback, $params);
$did_one = true;
return $did_one;
}
-function is_active_widget($callback) {
+/**
+ * Whether 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 'init' or later.
+ *
+ * @since 2.2.0
+ *
+ * @param string $callback Optional, Widget callback to check.
+ * @param int $widget_id Optional, but needed for checking. Widget ID.
+ * @param string $id_base Optional, the base ID of a widget created by extending WP_Widget.
+ * @param bool $skip_inactive Optional, whether to check in 'wp_inactive_widgets'.
+ * @return mixed false if widget is not active or id of sidebar in which the widget is active.
+ */
+function is_active_widget($callback = false, $widget_id = false, $id_base = false, $skip_inactive = true) {
global $wp_registered_widgets;
- $sidebars_widgets = wp_get_sidebars_widgets(false);
-
- if ( is_array($sidebars_widgets) ) foreach ( $sidebars_widgets as $sidebar => $widgets )
- if ( is_array($widgets) ) foreach ( $widgets as $widget )
- if ( $wp_registered_widgets[$widget]['callback'] == $callback )
- return true;
+ $sidebars_widgets = wp_get_sidebars_widgets();
+ if ( is_array($sidebars_widgets) ) {
+ foreach ( $sidebars_widgets as $sidebar => $widgets ) {
+ if ( $skip_inactive && 'wp_inactive_widgets' == $sidebar )
+ continue;
+
+ if ( is_array($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 || $widget_id == $wp_registered_widgets[$widget]['id'] )
+ return $sidebar;
+ }
+ }
+ }
+ }
+ }
return false;
}
+/**
+ * Whether the dynamic sidebar is enabled and used by theme.
+ *
+ * @since 2.2.0
+ *
+ * @return bool True, if using widgets. False, if not using widgets.
+ */
function is_dynamic_sidebar() {
global $wp_registered_widgets, $wp_registered_sidebars;
$sidebars_widgets = get_option('sidebars_widgets');
- foreach ( $wp_registered_sidebars as $index => $sidebar ) {
+ foreach ( (array) $wp_registered_sidebars as $index => $sidebar ) {
if ( count($sidebars_widgets[$index]) ) {
- foreach ( $sidebars_widgets[$index] as $widget )
+ foreach ( (array) $sidebars_widgets[$index] as $widget )
if ( array_key_exists($widget, $wp_registered_widgets) )
return true;
}
return false;
}
-/* Internal Functions */
-
-function wp_get_sidebars_widgets($update = true) {
- global $wp_registered_widgets, $wp_registered_sidebars;
-
- $sidebars_widgets = get_option('sidebars_widgets');
- $_sidebars_widgets = array();
-
- if ( !isset($sidebars_widgets['array_version']) )
- $sidebars_widgets['array_version'] = 1;
-
- switch ( $sidebars_widgets['array_version'] ) {
- case 1 :
- foreach ( $sidebars_widgets as $index => $sidebar )
- if ( is_array($sidebar) )
- foreach ( $sidebar as $i => $name ) {
- $id = strtolower($name);
- if ( isset($wp_registered_widgets[$id]) ) {
- $_sidebars_widgets[$index][$i] = $id;
- continue;
- }
- $id = sanitize_title($name);
- if ( isset($wp_registered_widgets[$id]) ) {
- $_sidebars_widgets[$index][$i] = $id;
- continue;
- }
- unset($_sidebars_widgets[$index][$i]);
- }
- $_sidebars_widgets['array_version'] = 2;
- $sidebars_widgets = $_sidebars_widgets;
- unset($_sidebars_widgets);
-
- case 2 :
- $sidebars = array_keys( $wp_registered_sidebars );
- if ( !empty( $sidebars ) ) {
- // Move the known-good ones first
- foreach ( $sidebars as $id ) {
- if ( array_key_exists( $id, $sidebars_widgets ) ) {
- $_sidebars_widgets[$id] = $sidebars_widgets[$id];
- unset($sidebars_widgets[$id], $sidebars[$id]);
- }
- }
+/**
+ * Whether a sidebar is in use.
+ *
+ * @since 2.8
+ *
+ * @param mixed $index Sidebar name, id or number to check.
+ * @return bool true if the sidebar is in use, false otherwise.
+ */
+function is_active_sidebar( $index ) {
+ $index = ( is_int($index) ) ? "sidebar-$index" : sanitize_title($index);
+ $sidebars_widgets = wp_get_sidebars_widgets();
+ if ( !empty($sidebars_widgets[$index]) )
+ return true;
- // Assign to each unmatched registered sidebar the first available orphan
- unset( $sidebars_widgets[ 'array_version' ] );
- while ( ( $sidebar = array_shift( $sidebars ) ) && $widgets = array_shift( $sidebars_widgets ) )
- $_sidebars_widgets[ $sidebar ] = $widgets;
+ return false;
+}
- $_sidebars_widgets['array_version'] = 3;
- $sidebars_widgets = $_sidebars_widgets;
- unset($_sidebars_widgets);
- }
+/* Internal Functions */
- if ( $update )
- update_option('sidebars_widgets', $sidebars_widgets);
+/**
+ * Retrieve full list of sidebars and their widgets.
+ *
+ * Will upgrade sidebar widget list, if needed. Will also save updated list, if
+ * needed.
+ *
+ * @since 2.2.0
+ * @access private
+ *
+ * @param bool $deprecated Not used (deprecated).
+ * @return array Upgraded list of widgets to version 3 array format when called from the admin.
+ */
+function wp_get_sidebars_widgets($deprecated = true) {
+ if ( $deprecated !== true )
+ _deprecated_argument( __FUNCTION__, '2.8.1' );
+
+ global $wp_registered_widgets, $_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 {
+ $sidebars_widgets = get_option('sidebars_widgets', array());
}
- unset($sidebars_widgets['array_version']);
+ if ( is_array( $sidebars_widgets ) && isset($sidebars_widgets['array_version']) )
+ unset($sidebars_widgets['array_version']);
+ $sidebars_widgets = apply_filters('sidebars_widgets', $sidebars_widgets);
return $sidebars_widgets;
}
+/**
+ * Set the sidebar widget option to update sidebars.
+ *
+ * @since 2.2.0
+ * @access private
+ *
+ * @param array $sidebars_widgets Sidebar widgets and their settings.
+ */
function wp_set_sidebars_widgets( $sidebars_widgets ) {
+ if ( !isset( $sidebars_widgets['array_version'] ) )
+ $sidebars_widgets['array_version'] = 3;
update_option( 'sidebars_widgets', $sidebars_widgets );
}
+/**
+ * Retrieve default registered sidebars list.
+ *
+ * @since 2.2.0
+ * @access private
+ *
+ * @return array
+ */
function wp_get_widget_defaults() {
global $wp_registered_sidebars;
$defaults = array();
- foreach ( $wp_registered_sidebars as $index => $sidebar )
+ foreach ( (array) $wp_registered_sidebars as $index => $sidebar )
$defaults[$index] = array();
return $defaults;
}
-/* Default Widgets */
-
-function wp_widget_pages( $args ) {
- extract( $args );
- $options = get_option( 'widget_pages' );
-
- $title = empty( $options['title'] ) ? __( 'Pages' ) : $options['title'];
- $sortby = empty( $options['sortby'] ) ? 'menu_order' : $options['sortby'];
- $exclude = empty( $options['exclude'] ) ? '' : $options['exclude'];
-
- if ( $sortby == 'menu_order' ) {
- $sortby = 'menu_order, post_title';
- }
-
- $out = wp_list_pages( array('title_li' => '', 'echo' => 0, 'sort_column' => $sortby, 'exclude' => $exclude) );
-
- if ( !empty( $out ) ) {
-?>
- <?php echo $before_widget; ?>
- <?php echo $before_title . $title . $after_title; ?>
- <ul>
- <?php echo $out; ?>
- </ul>
- <?php echo $after_widget; ?>
-<?php
+/**
+ * Convert the widget settings from single to multi-widget format.
+ *
+ * @since 2.8.0
+ *
+ * @return array
+ */
+function wp_convert_widget_settings($base_name, $option_name, $settings) {
+ // This test may need expanding.
+ $single = $changed = false;
+ if ( empty($settings) ) {
+ $single = true;
+ } else {
+ foreach ( array_keys($settings) as $number ) {
+ if ( 'number' == $number )
+ continue;
+ if ( !is_numeric($number) ) {
+ $single = true;
+ break;
+ }
+ }
}
-}
-
-function wp_widget_pages_control() {
- $options = $newoptions = get_option('widget_pages');
- if ( $_POST['pages-submit'] ) {
- $newoptions['title'] = strip_tags(stripslashes($_POST['pages-title']));
- $sortby = stripslashes( $_POST['pages-sortby'] );
+ if ( $single ) {
+ $settings = array( 2 => $settings );
- if ( in_array( $sortby, array( 'post_title', 'menu_order', 'ID' ) ) ) {
- $newoptions['sortby'] = $sortby;
+ // 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 {
- $newoptions['sortby'] = 'menu_order';
+ if ( empty($GLOBALS['_wp_sidebars_widgets']) )
+ $GLOBALS['_wp_sidebars_widgets'] = get_option('sidebars_widgets', array());
+ $sidebars_widgets = &$GLOBALS['_wp_sidebars_widgets'];
}
- $newoptions['exclude'] = strip_tags( stripslashes( $_POST['pages-exclude'] ) );
- }
- if ( $options != $newoptions ) {
- $options = $newoptions;
- update_option('widget_pages', $options);
- }
- $title = attribute_escape($options['title']);
- $exclude = attribute_escape( $options['exclude'] );
-?>
- <p><label for="pages-title"><?php _e('Title:'); ?> <input style="width: 250px;" id="pages-title" name="pages-title" type="text" value="<?php echo $title; ?>" /></label></p>
- <p><label for="pages-sortby"><?php _e( 'Sort by:' ); ?>
- <select name="pages-sortby" id="pages-sortby">
- <option value="post_title"<?php selected( $options['sortby'], 'post_title' ); ?>><?php _e('Page title'); ?></option>
- <option value="menu_order"<?php selected( $options['sortby'], 'menu_order' ); ?>><?php _e('Page order'); ?></option>
- <option value="ID"<?php selected( $options['sortby'], 'ID' ); ?>><?php _e( 'Page ID' ); ?></option>
- </select></label></p>
- <p><label for="pages-exclude"><?php _e( 'Exclude:' ); ?> <input type="text" value="<?php echo $exclude; ?>" name="pages-exclude" id="pages-exclude" style="width: 180px;" /></label><br />
- <small><?php _e( 'Page IDs, separated by commas.' ); ?></small></p>
- <input type="hidden" id="pages-submit" name="pages-submit" value="1" />
-<?php
-}
-
-function wp_widget_links($args) {
- extract($args, EXTR_SKIP);
- wp_list_bookmarks(array(
- 'title_before' => $before_title, 'title_after' => $after_title,
- 'category_before' => $before_widget, 'category_after' => $after_widget,
- 'show_images' => true, 'class' => 'linkcat widget'
- ));
-}
-
-function wp_widget_search($args) {
- extract($args);
-?>
- <?php echo $before_widget; ?>
- <form id="searchform" method="get" action="<?php bloginfo('home'); ?>">
- <div>
- <input type="text" name="s" id="s" size="15" /><br />
- <input type="submit" value="<?php echo attribute_escape(__('Search')); ?>" />
- </div>
- </form>
- <?php echo $after_widget; ?>
-<?php
-}
-
-function wp_widget_archives($args) {
- extract($args);
- $options = get_option('widget_archives');
- $c = $options['count'] ? '1' : '0';
- $d = $options['dropdown'] ? '1' : '0';
- $title = empty($options['title']) ? __('Archives') : $options['title'];
-
- echo $before_widget;
- echo $before_title . $title . $after_title;
-
- if($d) {
-?>
- <select name="archive-dropdown" onchange='document.location.href=this.options[this.selectedIndex].value;'> <option value=""><?php echo attribute_escape(__('Select Month')); ?></option> <?php wp_get_archives("type=monthly&format=option&show_post_count=$c"); ?> </select>
-<?php
- } else {
-?>
- <ul>
- <?php wp_get_archives("type=monthly&show_post_count=$c"); ?>
- </ul>
-<?php
- }
-
- echo $after_widget;
-}
-
-function wp_widget_archives_control() {
- $options = $newoptions = get_option('widget_archives');
- if ( $_POST["archives-submit"] ) {
- $newoptions['count'] = isset($_POST['archives-count']);
- $newoptions['dropdown'] = isset($_POST['archives-dropdown']);
- $newoptions['title'] = strip_tags(stripslashes($_POST["archives-title"]));
- }
- if ( $options != $newoptions ) {
- $options = $newoptions;
- update_option('widget_archives', $options);
- }
- $count = $options['count'] ? 'checked="checked"' : '';
- $dropdown = $options['dropdown'] ? 'checked="checked"' : '';
- $title = attribute_escape($options['title']);
-?>
- <p><label for="archives-title"><?php _e('Title:'); ?> <input style="width: 250px;" id="archives-title" name="archives-title" type="text" value="<?php echo $title; ?>" /></label></p>
- <p style="text-align:right;margin-right:40px;"><label for="archives-count"><?php _e('Show post counts'); ?> <input class="checkbox" type="checkbox" <?php echo $count; ?> id="archives-count" name="archives-count" /></label></p>
- <p style="text-align:right;margin-right:40px;"><label for="archives-dropdown"><?php _e('Display as a drop down'); ?> <input class="checkbox" type="checkbox" <?php echo $dropdown; ?> id="archives-dropdown" name="archives-dropdown" /></label></p>
- <input type="hidden" id="archives-submit" name="archives-submit" value="1" />
-<?php
-}
-
-function wp_widget_meta($args) {
- extract($args);
- $options = get_option('widget_meta');
- $title = empty($options['title']) ? __('Meta') : $options['title'];
-?>
- <?php echo $before_widget; ?>
- <?php echo $before_title . $title . $after_title; ?>
- <ul>
- <?php wp_register(); ?>
- <li><?php wp_loginout(); ?></li>
- <li><a href="<?php bloginfo('rss2_url'); ?>" title="<?php echo attribute_escape(__('Syndicate this site using RSS 2.0')); ?>"><?php _e('Entries <abbr title="Really Simple Syndication">RSS</abbr>'); ?></a></li>
- <li><a href="<?php bloginfo('comments_rss2_url'); ?>" title="<?php echo attribute_escape(__('The latest comments to all posts in RSS')); ?>"><?php _e('Comments <abbr title="Really Simple Syndication">RSS</abbr>'); ?></a></li>
- <li><a href="http://wordpress.org/" title="<?php echo attribute_escape(__('Powered by WordPress, state-of-the-art semantic personal publishing platform.')); ?>">WordPress.org</a></li>
- <?php wp_meta(); ?>
- </ul>
- <?php echo $after_widget; ?>
-<?php
-}
-function wp_widget_meta_control() {
- $options = $newoptions = get_option('widget_meta');
- if ( $_POST["meta-submit"] ) {
- $newoptions['title'] = strip_tags(stripslashes($_POST["meta-title"]));
- }
- if ( $options != $newoptions ) {
- $options = $newoptions;
- update_option('widget_meta', $options);
- }
- $title = attribute_escape($options['title']);
-?>
- <p><label for="meta-title"><?php _e('Title:'); ?> <input style="width: 250px;" id="meta-title" name="meta-title" type="text" value="<?php echo $title; ?>" /></label></p>
- <input type="hidden" id="meta-submit" name="meta-submit" value="1" />
-<?php
-}
-
-function wp_widget_calendar($args) {
- extract($args);
- $options = get_option('widget_calendar');
- $title = $options['title'];
- if ( empty($title) )
- $title = ' ';
- echo $before_widget . $before_title . $title . $after_title;
- echo '<div id="calendar_wrap">';
- get_calendar();
- echo '</div>';
- echo $after_widget;
-}
-function wp_widget_calendar_control() {
- $options = $newoptions = get_option('widget_calendar');
- if ( $_POST["calendar-submit"] ) {
- $newoptions['title'] = strip_tags(stripslashes($_POST["calendar-title"]));
- }
- if ( $options != $newoptions ) {
- $options = $newoptions;
- update_option('widget_calendar', $options);
- }
- $title = attribute_escape($options['title']);
-?>
- <p><label for="calendar-title"><?php _e('Title:'); ?> <input style="width: 250px;" id="calendar-title" name="calendar-title" type="text" value="<?php echo $title; ?>" /></label></p>
- <input type="hidden" id="calendar-submit" name="calendar-submit" value="1" />
-<?php
-}
-
-function wp_widget_text($args, $number = 1) {
- extract($args);
- $options = get_option('widget_text');
- $title = $options[$number]['title'];
- $text = apply_filters( 'widget_text', $options[$number]['text'] );
-?>
- <?php echo $before_widget; ?>
- <?php if ( !empty( $title ) ) { echo $before_title . $title . $after_title; } ?>
- <div class="textwidget"><?php echo $text; ?></div>
- <?php echo $after_widget; ?>
-<?php
-}
-
-function wp_widget_text_control($number) {
- $options = $newoptions = get_option('widget_text');
- if ( !is_array($options) )
- $options = $newoptions = array();
- if ( $_POST["text-submit-$number"] ) {
- $newoptions[$number]['title'] = strip_tags(stripslashes($_POST["text-title-$number"]));
- $newoptions[$number]['text'] = stripslashes($_POST["text-text-$number"]);
- if ( !current_user_can('unfiltered_html') )
- $newoptions[$number]['text'] = stripslashes(wp_filter_post_kses($newoptions[$number]['text']));
- }
- if ( $options != $newoptions ) {
- $options = $newoptions;
- update_option('widget_text', $options);
- }
- $title = attribute_escape($options[$number]['title']);
- $text = format_to_edit($options[$number]['text']);
-?>
- <input style="width: 450px;" id="text-title-<?php echo $number; ?>" name="text-title-<?php echo $number; ?>" type="text" value="<?php echo $title; ?>" />
- <textarea style="width: 450px; height: 280px;" id="text-text-<?php echo $number; ?>" name="text-text-<?php echo $number; ?>"><?php echo $text; ?></textarea>
- <input type="hidden" id="text-submit-<?php echo "$number"; ?>" name="text-submit-<?php echo "$number"; ?>" value="1" />
-<?php
-}
+ 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;
+ }
+ }
+ }
+ }
-function wp_widget_text_setup() {
- $options = $newoptions = get_option('widget_text');
- if ( isset($_POST['text-number-submit']) ) {
- $number = (int) $_POST['text-number'];
- if ( $number > 9 ) $number = 9;
- if ( $number < 1 ) $number = 1;
- $newoptions['number'] = $number;
- }
- if ( $options != $newoptions ) {
- $options = $newoptions;
- update_option('widget_text', $options);
- wp_widget_text_register($options['number']);
+ if ( is_admin() && $changed )
+ update_option('sidebars_widgets', $sidebars_widgets);
}
-}
-function wp_widget_text_page() {
- $options = $newoptions = get_option('widget_text');
-?>
- <div class="wrap">
- <form method="POST">
- <h2><?php _e('Text Widgets'); ?></h2>
- <p style="line-height: 30px;"><?php _e('How many text widgets would you like?'); ?>
- <select id="text-number" name="text-number" value="<?php echo $options['number']; ?>">
-<?php for ( $i = 1; $i < 10; ++$i ) echo "<option value='$i' ".($options['number']==$i ? "selected='selected'" : '').">$i</option>"; ?>
- </select>
- <span class="submit"><input type="submit" name="text-number-submit" id="text-number-submit" value="<?php echo attribute_escape(__('Save')); ?>" /></span></p>
- </form>
- </div>
-<?php
-}
+ $settings['_multiwidget'] = 1;
+ if ( is_admin() )
+ update_option( $option_name, $settings );
-function wp_widget_text_register() {
- $options = get_option('widget_text');
- $number = $options['number'];
- if ( $number < 1 ) $number = 1;
- if ( $number > 9 ) $number = 9;
- $dims = array('width' => 460, 'height' => 350);
- $class = array('classname' => 'widget_text');
- for ($i = 1; $i <= 9; $i++) {
- $name = sprintf(__('Text %d'), $i);
- $id = "text-$i"; // Never never never translate an id
- wp_register_sidebar_widget($id, $name, $i <= $number ? 'wp_widget_text' : /* unregister */ '', $class, $i);
- wp_register_widget_control($id, $name, $i <= $number ? 'wp_widget_text_control' : /* unregister */ '', $dims, $i);
- }
- add_action('sidebar_admin_setup', 'wp_widget_text_setup');
- add_action('sidebar_admin_page', 'wp_widget_text_page');
+ return $settings;
}
-function wp_widget_categories($args, $number = 1) {
- extract($args);
- $options = get_option('widget_categories');
-
- $c = $options[$number]['count'] ? '1' : '0';
- $h = $options[$number]['hierarchical'] ? '1' : '0';
- $d = $options[$number]['dropdown'] ? '1' : '0';
-
- $title = empty($options[$number]['title']) ? __('Categories') : $options[$number]['title'];
-
- echo $before_widget;
- echo $before_title . $title . $after_title;
+/**
+ * Output an arbitrary widget as a template tag
+ *
+ * @since 2.8
+ *
+ * @param string $widget the widget's PHP class name (see default-widgets.php)
+ * @param array $instance the widget's instance settings
+ * @param array $args the widget's sidebar args
+ * @return void
+ **/
+function the_widget($widget, $instance = array(), $args = array()) {
+ global $wp_widget_factory;
+
+ $widget_obj = $wp_widget_factory->widgets[$widget];
+ if ( !is_a($widget_obj, 'WP_Widget') )
+ return;
- $cat_args = "orderby=name&show_count={$c}&hierarchical={$h}";
+ $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>' );
- if ( $d ) {
- wp_dropdown_categories($cat_args . '&show_option_none= ' . __('Select Category'));
-?>
+ $args = wp_parse_args($args, $default_args);
+ $instance = wp_parse_args($instance);
-<script lang='javascript'><!--
- var dropdown = document.getElementById("cat");
- function onCatChange() {
- if ( dropdown.options[dropdown.selectedIndex].value > 0 ) {
- location.href = "<?php echo get_option('home'); ?>/?cat="+dropdown.options[dropdown.selectedIndex].value;
- }
- }
- dropdown.onchange = onCatChange;
---></script>
+ do_action( 'the_widget', $widget, $instance, $args );
-<?php
- } else {
-?>
- <ul>
- <?php wp_list_categories($cat_args . '&title_li='); ?>
- </ul>
-<?php
- }
-
- echo $after_widget;
+ $widget_obj->_set(-1);
+ $widget_obj->widget($args, $instance);
}
-function wp_widget_categories_control( $number ) {
- $options = $newoptions = get_option('widget_categories');
-
- if ( !is_array( $options ) ) {
- $options = $newoptions = get_option( 'widget_categories' );
- }
-
- if ( $_POST['categories-submit-' . $number] ) {
- $newoptions[$number]['count'] = isset($_POST['categories-count-' . $number]);
- $newoptions[$number]['hierarchical'] = isset($_POST['categories-hierarchical-' . $number]);
- $newoptions[$number]['dropdown'] = isset($_POST['categories-dropdown-' . $number]);
- $newoptions[$number]['title'] = strip_tags(stripslashes($_POST['categories-title-' . $number]));
- }
-
- if ( $options != $newoptions ) {
- $options = $newoptions;
- update_option('widget_categories', $options);
- }
-
- $title = attribute_escape( $options[$number]['title'] );
-?>
- <p><label for="categories-title-<?php echo $number; ?>">
- <?php _e( 'Title:' ); ?> <input style="width:300px" id="categories-title-<?php echo $number; ?>" name="categories-title-<?php echo $number; ?>" type="text" value="<?php echo $title; ?>" />
- </label></p>
-
- <p><label for="categories-dropdown-<?php echo $number; ?>">
- <input type="checkbox" class="checkbox" id="categories-dropdown-<?php echo $number; ?>" name="categories-dropdown-<?php echo $number; ?>"<?php echo $options[$number]['dropdown'] ? ' checked="checked"' : ''; ?> /> <?php _e( 'Show as dropdown' ); ?>
- </label></p>
-
- <p><label for="categories-count-<?php echo $number; ?>">
- <input type="checkbox" class="checkbox" id="categories-count-<?php echo $number; ?>" name="categories-count-<?php echo $number; ?>"<?php echo $options[$number]['count'] ? ' checked="checked"' : ''; ?> /> <?php _e( 'Show post counts' ); ?>
- </label></p>
-
- <p><label for="categories-hierarchical-<?php echo $number; ?>">
- <input type="checkbox" class="checkbox" id="categories-hierarchical-<?php echo $number; ?>" name="categories-hierarchical-<?php echo $number; ?>"<?php echo $options[$number]['hierarchical'] ? ' checked="checked"' : ''; ?> /> <?php _e( 'Show hierarchy' ); ?>
- </label></p>
-
- <input type="hidden" id="categories-submit-<?php echo $number; ?>" name="categories-submit-<?php echo $number; ?>" value="1" />
-<?php
+/**
+ * Private
+ */
+function _get_widget_id_base($id) {
+ return preg_replace( '/-[0-9]+$/', '', $id );
}
-function wp_widget_categories_setup() {
- $options = $newoptions = get_option( 'widget_categories' );
+/**
+ * Handle sidebars config after theme change
+ *
+ * @access private
+ * @since 3.3.0
+ */
+function _wp_sidebars_changed() {
+ global $sidebars_widgets;
- if ( isset( $_POST['categories-number-submit'] ) ) {
- $number = (int) $_POST['categories-number'];
+ if ( ! is_array( $sidebars_widgets ) )
+ $sidebars_widgets = wp_get_sidebars_widgets();
- if ( $number > 9 ) {
- $number = 9;
- } elseif ( $number < 1 ) {
- $number = 1;
- }
-
- $newoptions['number'] = $number;
- }
-
- if ( $newoptions != $options ) {
- $options = $newoptions;
- update_option( 'widget_categories', $options );
- wp_widget_categories_register( $options['number'] );
- }
+ retrieve_widgets(true);
}
-function wp_widget_categories_page() {
- $options = get_option( 'widget_categories' );
-?>
- <div class="wrap">
- <form method="post">
- <h2><?php _e( 'Categories Widgets' ); ?></h2>
- <p style="line-height: 30px;"><?php _e( 'How many categories widgets would you like?' ); ?>
- <select id="categories-number" name="categories-number" value="<?php echo attribute_escape( $options['number'] ); ?>">
- <?php
- for ( $i = 1; $i < 10; $i++ ) {
- echo '<option value="' . $i . '"' . ( $i == $options['number'] ? ' selected="selected"' : '' ) . '>' . $i . "</option>\n";
- }
- ?>
- </select>
- <span class="submit">
- <input type="submit" value="<?php echo attribute_escape( __( 'Save' ) ); ?>" id="categories-number-submit" name="categories-number-submit" />
- </span>
- </p>
- </form>
- </div>
-<?php
-}
+// look for "lost" widgets, this has to run at least on each theme change
+function retrieve_widgets($theme_changed = false) {
+ global $wp_registered_widget_updates, $wp_registered_sidebars, $sidebars_widgets, $wp_registered_widgets;
-function wp_widget_categories_upgrade() {
- $options = get_option( 'widget_categories' );
+ $registered_sidebar_keys = array_keys( $wp_registered_sidebars );
+ $orphaned = 0;
- $newoptions = array( 'number' => 1, 1 => $options );
+ $old_sidebars_widgets = get_theme_mod( 'sidebars_widgets' );
+ if ( is_array( $old_sidebars_widgets ) ) {
+ // time() that sidebars were stored is in $old_sidebars_widgets['time']
+ $_sidebars_widgets = $old_sidebars_widgets['data'];
+ remove_theme_mod( 'sidebars_widgets' );
- update_option( 'widget_categories', $newoptions );
+ foreach ( $_sidebars_widgets as $sidebar => $widgets ) {
+ if ( 'wp_inactive_widgets' == $sidebar || 'orphaned_widgets' == substr( $sidebar, 0, 16 ) )
+ continue;
- $sidebars_widgets = get_option( 'sidebars_widgets' );
- if ( is_array( $sidebars_widgets ) ) {
- foreach ( $sidebars_widgets as $sidebar => $widgets ) {
- if ( is_array( $widgets ) ) {
- foreach ( $widgets as $widget )
- $new_widgets[$sidebar][] = ( $widget == 'categories' ) ? 'categories-1' : $widget;
- } else {
- $new_widgets[$sidebar] = $widgets;
+ if ( !in_array( $sidebar, $registered_sidebar_keys ) ) {
+ $_sidebars_widgets['orphaned_widgets_' . ++$orphaned] = $widgets;
+ unset( $_sidebars_widgets[$sidebar] );
}
}
- if ( $new_widgets != $sidebars_widgets )
- update_option( 'sidebars_widgets', $new_widgets );
- }
-
- if ( isset( $_POST['categories-submit'] ) ) {
- $_POST['categories-submit-1'] = $_POST['categories-submit'];
- $_POST['categories-count-1'] = $_POST['categories-count'];
- $_POST['categories-hierarchical-1'] = $_POST['categories-hierarchical'];
- $_POST['categories-dropdown-1'] = $_POST['categories-dropdown'];
- $_POST['categories-title-1'] = $_POST['categories-title'];
- foreach ( $_POST as $k => $v )
- if ( substr($k, -5) == 'order' )
- $_POST[$k] = str_replace('categories', 'categories-1', $v);
- }
-
- return $newoptions;
-}
-
-function wp_widget_categories_register() {
- $options = get_option( 'widget_categories' );
- if ( !isset($options['number']) )
- $options = wp_widget_categories_upgrade();
- $number = (int) $options['number'];
-
- if ( $number > 9 ) {
- $number = 9;
- } elseif ( $number < 1 ) {
- $number = 1;
- }
-
- $dims = array( 'width' => 350, 'height' => 170 );
- $class = array( 'classname' => 'widget_categories' );
-
- for ( $i = 1; $i <= 9; $i++ ) {
- $name = sprintf( __( 'Categories %d' ), $i );
- $id = 'categories-' . $i;
-
- $widget_callback = ( $i <= $number ) ? 'wp_widget_categories' : '';
- $control_callback = ( $i <= $number ) ? 'wp_widget_categories_control' : '';
-
- wp_register_sidebar_widget( $id, $name, $widget_callback, $class, $i );
- wp_register_widget_control( $id, $name, $control_callback, $dims, $i );
- }
-
- add_action( 'sidebar_admin_setup', 'wp_widget_categories_setup' );
- add_action( 'sidebar_admin_page', 'wp_widget_categories_page' );
-}
-
-function wp_widget_recent_entries($args) {
- if ( $output = wp_cache_get('widget_recent_entries') )
- return print($output);
-
- ob_start();
- extract($args);
- $options = get_option('widget_recent_entries');
- $title = empty($options['title']) ? __('Recent Posts') : $options['title'];
- if ( !$number = (int) $options['number'] )
- $number = 10;
- else if ( $number < 1 )
- $number = 1;
- else if ( $number > 15 )
- $number = 15;
-
- $r = new WP_Query("showposts=$number&what_to_show=posts&nopaging=0&post_status=publish");
- if ($r->have_posts()) :
-?>
- <?php echo $before_widget; ?>
- <?php echo $before_title . $title . $after_title; ?>
- <ul>
- <?php while ($r->have_posts()) : $r->the_post(); ?>
- <li><a href="<?php the_permalink() ?>"><?php if ( get_the_title() ) the_title(); else the_ID(); ?> </a></li>
- <?php endwhile; ?>
- </ul>
- <?php echo $after_widget; ?>
-<?php
- endif;
- wp_cache_add('widget_recent_entries', ob_get_flush());
-}
+ } else {
+ if ( empty( $sidebars_widgets ) )
+ return;
-function wp_flush_widget_recent_entries() {
- wp_cache_delete('widget_recent_entries');
-}
+ unset( $sidebars_widgets['array_version'] );
-add_action('save_post', 'wp_flush_widget_recent_entries');
-add_action('deleted_post', 'wp_flush_widget_recent_entries');
+ $old = array_keys($sidebars_widgets);
+ sort($old);
+ sort($registered_sidebar_keys);
-function wp_widget_recent_entries_control() {
- $options = $newoptions = get_option('widget_recent_entries');
- if ( $_POST["recent-entries-submit"] ) {
- $newoptions['title'] = strip_tags(stripslashes($_POST["recent-entries-title"]));
- $newoptions['number'] = (int) $_POST["recent-entries-number"];
- }
- if ( $options != $newoptions ) {
- $options = $newoptions;
- update_option('widget_recent_entries', $options);
- wp_flush_widget_recent_entries();
- }
- $title = attribute_escape($options['title']);
- if ( !$number = (int) $options['number'] )
- $number = 5;
-?>
- <p><label for="recent-entries-title"><?php _e('Title:'); ?> <input style="width: 250px;" id="recent-entries-title" name="recent-entries-title" type="text" value="<?php echo $title; ?>" /></label></p>
- <p><label for="recent-entries-number"><?php _e('Number of posts to show:'); ?> <input style="width: 25px; text-align: center;" id="recent-entries-number" name="recent-entries-number" type="text" value="<?php echo $number; ?>" /></label> <?php _e('(at most 15)'); ?></p>
- <input type="hidden" id="recent-entries-submit" name="recent-entries-submit" value="1" />
-<?php
-}
+ if ( $old == $registered_sidebar_keys )
+ return;
-function wp_widget_recent_comments($args) {
- global $wpdb, $comments, $comment;
- extract($args, EXTR_SKIP);
- $options = get_option('widget_recent_comments');
- $title = empty($options['title']) ? __('Recent Comments') : $options['title'];
- if ( !$number = (int) $options['number'] )
- $number = 5;
- else if ( $number < 1 )
- $number = 1;
- else if ( $number > 15 )
- $number = 15;
-
- if ( !$comments = wp_cache_get( 'recent_comments', 'widget' ) ) {
- $comments = $wpdb->get_results("SELECT comment_author, comment_author_url, comment_ID, comment_post_ID FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT $number");
- wp_cache_add( 'recent_comments', $comments, 'widget' );
- }
-?>
-
- <?php echo $before_widget; ?>
- <?php echo $before_title . $title . $after_title; ?>
- <ul id="recentcomments"><?php
- if ( $comments ) : foreach ($comments as $comment) :
- echo '<li class="recentcomments">' . sprintf(__('%1$s on %2$s'), get_comment_author_link(), '<a href="'. get_permalink($comment->comment_post_ID) . '#comment-' . $comment->comment_ID . '">' . get_the_title($comment->comment_post_ID) . '</a>') . '</li>';
- endforeach; endif;?></ul>
- <?php echo $after_widget; ?>
-<?php
-}
+ $_sidebars_widgets = array(
+ 'wp_inactive_widgets' => !empty( $sidebars_widgets['wp_inactive_widgets'] ) ? $sidebars_widgets['wp_inactive_widgets'] : array()
+ );
-function wp_delete_recent_comments_cache() {
- wp_cache_delete( 'recent_comments', 'widget' );
-}
-add_action( 'comment_post', 'wp_delete_recent_comments_cache' );
-add_action( 'wp_set_comment_status', 'wp_delete_recent_comments_cache' );
-
-function wp_widget_recent_comments_control() {
- $options = $newoptions = get_option('widget_recent_comments');
- if ( $_POST["recent-comments-submit"] ) {
- $newoptions['title'] = strip_tags(stripslashes($_POST["recent-comments-title"]));
- $newoptions['number'] = (int) $_POST["recent-comments-number"];
- }
- if ( $options != $newoptions ) {
- $options = $newoptions;
- update_option('widget_recent_comments', $options);
- wp_delete_recent_comments_cache();
- }
- $title = attribute_escape($options['title']);
- if ( !$number = (int) $options['number'] )
- $number = 5;
-?>
- <p><label for="recent-comments-title"><?php _e('Title:'); ?> <input style="width: 250px;" id="recent-comments-title" name="recent-comments-title" type="text" value="<?php echo $title; ?>" /></label></p>
- <p><label for="recent-comments-number"><?php _e('Number of comments to show:'); ?> <input style="width: 25px; text-align: center;" id="recent-comments-number" name="recent-comments-number" type="text" value="<?php echo $number; ?>" /></label> <?php _e('(at most 15)'); ?></p>
- <input type="hidden" id="recent-comments-submit" name="recent-comments-submit" value="1" />
-<?php
-}
+ unset( $sidebars_widgets['wp_inactive_widgets'] );
-function wp_widget_recent_comments_style() {
-?>
-<style type="text/css">.recentcomments a{display:inline !important;padding: 0 !important;margin: 0 !important;}</style>
-<?php
-}
-
-function wp_widget_recent_comments_register() {
- $dims = array('width' => 320, 'height' => 90);
- $class = array('classname' => 'widget_recent_comments');
- wp_register_sidebar_widget('recent-comments', __('Recent Comments'), 'wp_widget_recent_comments', $class);
- wp_register_widget_control('recent-comments', __('Recent Comments'), 'wp_widget_recent_comments_control', $dims);
-
- if ( is_active_widget('wp_widget_recent_comments') )
- add_action('wp_head', 'wp_widget_recent_comments_style');
-}
-
-function wp_widget_rss($args, $number = 1) {
- require_once(ABSPATH . WPINC . '/rss.php');
- extract($args);
- $options = get_option('widget_rss');
- if ( isset($options['error']) && $options['error'] )
- return;
- $num_items = (int) $options[$number]['items'];
- $show_summary = $options[$number]['show_summary'];
- if ( empty($num_items) || $num_items < 1 || $num_items > 10 ) $num_items = 10;
- $url = $options[$number]['url'];
- while ( strstr($url, 'http') != $url )
- $url = substr($url, 1);
- if ( empty($url) )
- return;
- $rss = fetch_rss($url);
- $link = clean_url(strip_tags($rss->channel['link']));
- while ( strstr($link, 'http') != $link )
- $link = substr($link, 1);
- $desc = attribute_escape(strip_tags(html_entity_decode($rss->channel['description'], ENT_QUOTES)));
- $title = $options[$number]['title'];
- if ( empty($title) )
- $title = htmlentities(strip_tags($rss->channel['title']));
- if ( empty($title) )
- $title = $desc;
- if ( empty($title) )
- $title = __('Unknown Feed');
- $url = clean_url(strip_tags($url));
- if ( file_exists(dirname(__FILE__) . '/rss.png') )
- $icon = str_replace(ABSPATH, get_option('siteurl').'/', dirname(__FILE__)) . '/rss.png';
- else
- $icon = get_option('siteurl').'/wp-includes/images/rss.png';
- $title = "<a class='rsswidget' href='$url' title='" . attribute_escape(__('Syndicate this content')) ."'><img style='background:orange;color:white;border:none;' width='14' height='14' src='$icon' alt='RSS' /></a> <a class='rsswidget' href='$link' title='$desc'>$title</a>";
-?>
- <?php echo $before_widget; ?>
- <?php $title ? print($before_title . $title . $after_title) : null; ?>
-<?php
- if ( is_array( $rss->items ) && !empty( $rss->items ) ) {
- $rss->items = array_slice($rss->items, 0, $num_items);
- echo '<ul>';
- foreach ($rss->items as $item ) {
- while ( strstr($item['link'], 'http') != $item['link'] )
- $item['link'] = substr($item['link'], 1);
- $link = clean_url(strip_tags($item['link']));
- $title = attribute_escape(strip_tags($item['title']));
- if ( empty($title) )
- $title = __('Untitled');
- $desc = '';
- if ( $show_summary ) {
- $summary = '<div class="rssSummary">' . $item['description'] . '</div>';
+ foreach ( $wp_registered_sidebars as $id => $settings ) {
+ if ( $theme_changed ) {
+ $_sidebars_widgets[$id] = array_shift( $sidebars_widgets );
} else {
- if ( isset( $item['description'] ) && is_string( $item['description'] ) )
- $desc = str_replace(array("\n", "\r"), ' ', attribute_escape(strip_tags(html_entity_decode($item['description'], ENT_QUOTES))));
- $summary = '';
+ // no theme change, grab only sidebars that are currently registered
+ if ( isset( $sidebars_widgets[$id] ) ) {
+ $_sidebars_widgets[$id] = $sidebars_widgets[$id];
+ unset( $sidebars_widgets[$id] );
+ }
}
- echo "<li><a class='rsswidget' href='$link' title='$desc'>$title</a>$summary</li>";
}
- echo '</ul>';
- } else {
- echo '<ul><li>' . __( 'An error has occurred; the feed is probably down. Try again later.' ) . '</li></ul>';
- }
-
- echo $after_widget;
-}
-function wp_widget_rss_control($number) {
- $options = $newoptions = get_option('widget_rss');
- if ( $_POST["rss-submit-$number"] ) {
- $newoptions[$number]['items'] = (int) $_POST["rss-items-$number"];
- $url = sanitize_url(strip_tags(stripslashes($_POST["rss-url-$number"])));
- $newoptions[$number]['title'] = trim(strip_tags(stripslashes($_POST["rss-title-$number"])));
- if ( $url !== $options[$number]['url'] ) {
- require_once(ABSPATH . WPINC . '/rss.php');
- $rss = fetch_rss($url);
- if ( is_object($rss) ) {
- $newoptions[$number]['url'] = $url;
- $newoptions[$number]['error'] = false;
- } else {
- $newoptions[$number]['error'] = true;
- $newoptions[$number]['url'] = wp_specialchars(__('Error: could not find an RSS or ATOM feed at that URL.'), 1);
- $error = sprintf(__('Error in RSS %1$d: %2$s'), $number, $newoptions[$number]['error']);
- }
+ foreach ( $sidebars_widgets as $val ) {
+ if ( is_array($val) && ! empty( $val ) )
+ $_sidebars_widgets['orphaned_widgets_' . ++$orphaned] = $val;
}
}
- if ( $options != $newoptions ) {
- $options = $newoptions;
- update_option('widget_rss', $options);
- }
- $url = attribute_escape($options[$number]['url']);
- $items = (int) $options[$number]['items'];
- $title = attribute_escape($options[$number]['title']);
- if ( empty($items) || $items < 1 ) $items = 10;
-?>
- <p style="text-align:center;"><?php _e('Enter the RSS feed URL here:'); ?></p>
- <input style="width: 400px;" id="rss-url-<?php echo "$number"; ?>" name="rss-url-<?php echo "$number"; ?>" type="text" value="<?php echo $url; ?>" />
- <p style="text-align:center;"><?php _e('Give the feed a title (optional):'); ?></p>
- <input style="width: 400px;" id="rss-title-<?php echo "$number"; ?>" name="rss-title-<?php echo "$number"; ?>" type="text" value="<?php echo $title; ?>" />
- <p style="text-align:center; line-height: 30px;"><?php _e('How many items would you like to display?'); ?> <select id="rss-items-<?php echo $number; ?>" name="rss-items-<?php echo $number; ?>"><?php for ( $i = 1; $i <= 10; ++$i ) echo "<option value='$i' ".($items==$i ? "selected='selected'" : '').">$i</option>"; ?></select></p>
- <input type="hidden" id="rss-submit-<?php echo "$number"; ?>" name="rss-submit-<?php echo "$number"; ?>" value="1" />
-<?php
-}
-function wp_widget_rss_setup() {
- $options = $newoptions = get_option('widget_rss');
- if ( isset($_POST['rss-number-submit']) ) {
- $number = (int) $_POST['rss-number'];
- if ( $number > 9 ) $number = 9;
- if ( $number < 1 ) $number = 1;
- $newoptions['number'] = $number;
- }
- if ( $options != $newoptions ) {
- $options = $newoptions;
- update_option('widget_rss', $options);
- wp_widget_rss_register($options['number']);
- }
-}
+ // discard invalid, theme-specific widgets from sidebars
+ $shown_widgets = array();
-function wp_widget_rss_page() {
- $options = $newoptions = get_option('widget_rss');
-?>
- <div class="wrap">
- <form method="POST">
- <h2><?php _e('RSS Feed Widgets'); ?></h2>
- <p style="line-height: 30px;"><?php _e('How many RSS widgets would you like?'); ?>
- <select id="rss-number" name="rss-number" value="<?php echo $options['number']; ?>">
-<?php for ( $i = 1; $i < 10; ++$i ) echo "<option value='$i' ".($options['number']==$i ? "selected='selected'" : '').">$i</option>"; ?>
- </select>
- <span class="submit"><input type="submit" name="rss-number-submit" id="rss-number-submit" value="<?php echo attribute_escape(__('Save')); ?>" /></span></p>
- </form>
- </div>
-<?php
-}
+ foreach ( $_sidebars_widgets as $sidebar => $widgets ) {
+ if ( !is_array($widgets) )
+ continue;
-function wp_widget_rss_register() {
- $options = get_option('widget_rss');
- $number = $options['number'];
- if ( $number < 1 ) $number = 1;
- if ( $number > 9 ) $number = 9;
- $dims = array('width' => 410, 'height' => 200);
- $class = array('classname' => 'widget_rss');
- for ($i = 1; $i <= 9; $i++) {
- $name = sprintf(__('RSS %d'), $i);
- $id = "rss-$i"; // Never never never translate an id
- wp_register_sidebar_widget($id, $name, $i <= $number ? 'wp_widget_rss' : /* unregister */ '', $class, $i);
- wp_register_widget_control($id, $name, $i <= $number ? 'wp_widget_rss_control' : /* unregister */ '', $dims, $i);
- }
- add_action('sidebar_admin_setup', 'wp_widget_rss_setup');
- add_action('sidebar_admin_page', 'wp_widget_rss_page');
-}
-
-function wp_widget_tag_cloud($args) {
- extract($args);
- $options = get_option('widget_tag_cloud');
- $title = empty($options['title']) ? __('Tags') : $options['title'];
-
- echo $before_widget;
- echo $before_title . $title . $after_title;
- wp_tag_cloud();
- echo $after_widget;
-}
-
-function wp_widget_tag_cloud_control() {
- $options = $newoptions = get_option('widget_tag_cloud');
-
- if ( $_POST['tag-cloud-submit'] ) {
- $newoptions['title'] = strip_tags(stripslashes($_POST['tag-cloud-title']));
- }
+ $_widgets = array();
+ foreach ( $widgets as $widget ) {
+ if ( isset($wp_registered_widgets[$widget]) )
+ $_widgets[] = $widget;
+ }
- if ( $options != $newoptions ) {
- $options = $newoptions;
- update_option('widget_tag_cloud', $options);
+ $_sidebars_widgets[$sidebar] = $_widgets;
+ $shown_widgets = array_merge($shown_widgets, $_widgets);
}
- $title = attribute_escape( $options['title'] );
-?>
- <p><label for="tag-cloud-title">
- <?php _e('Title:') ?> <input type="text" style="width:300px" id="tag-cloud-title" name="tag-cloud-title" value="<?php echo $title ?>" /></label>
- </p>
- <input type="hidden" name="tag-cloud-submit" id="tag-cloud-submit" value="1" />
-<?php
-}
-
-function wp_widgets_init() {
- if ( !is_blog_installed() )
- return;
+ $sidebars_widgets = $_sidebars_widgets;
+ unset($_sidebars_widgets, $_widgets);
- $GLOBALS['wp_register_widget_defaults'] = true;
+ // find hidden/lost multi-widget instances
+ $lost_widgets = array();
+ foreach ( $wp_registered_widgets as $key => $val ) {
+ if ( in_array($key, $shown_widgets, true) )
+ continue;
- $dims90 = array( 'height' => 90, 'width' => 300 );
- $dims100 = array( 'height' => 100, 'width' => 300 );
- $dims150 = array( 'height' => 150, 'width' => 300 );
+ $number = preg_replace('/.+?-([0-9]+)$/', '$1', $key);
- $class = array('classname' => 'widget_pages');
- wp_register_sidebar_widget('pages', __('Pages'), 'wp_widget_pages', $class);
- wp_register_widget_control('pages', __('Pages'), 'wp_widget_pages_control', $dims150);
+ if ( 2 > (int) $number )
+ continue;
- $class['classname'] = 'widget_calendar';
- wp_register_sidebar_widget('calendar', __('Calendar'), 'wp_widget_calendar', $class);
- wp_register_widget_control('calendar', __('Calendar'), 'wp_widget_calendar_control', $dims90);
-
- $class['classname'] = 'widget_archives';
- wp_register_sidebar_widget('archives', __('Archives'), 'wp_widget_archives', $class);
- wp_register_widget_control('archives', __('Archives'), 'wp_widget_archives_control', $dims100);
-
- $class['classname'] = 'widget_links';
- wp_register_sidebar_widget('links', __('Links'), 'wp_widget_links', $class);
-
- $class['classname'] = 'widget_meta';
- wp_register_sidebar_widget('meta', __('Meta'), 'wp_widget_meta', $class);
- wp_register_widget_control('meta', __('Meta'), 'wp_widget_meta_control', $dims90);
-
- $class['classname'] = 'widget_search';
- wp_register_sidebar_widget('search', __('Search'), 'wp_widget_search', $class);
-
- $class['classname'] = 'widget_recent_entries';
- wp_register_sidebar_widget('recent-posts', __('Recent Posts'), 'wp_widget_recent_entries', $class);
- wp_register_widget_control('recent-posts', __('Recent Posts'), 'wp_widget_recent_entries_control', $dims90);
-
- $class['classname'] = 'widget_tag_cloud';
- wp_register_sidebar_widget('tag_cloud', __('Tag Cloud'), 'wp_widget_tag_cloud', $class);
- wp_register_widget_control('tag_cloud', __('Tag Cloud'), 'wp_widget_tag_cloud_control', 'width=300&height=160');
-
- wp_widget_categories_register();
- wp_widget_text_register();
- wp_widget_rss_register();
- wp_widget_recent_comments_register();
+ $lost_widgets[] = $key;
+ }
- $GLOBALS['wp_register_widget_defaults'] = false;
+ $sidebars_widgets['wp_inactive_widgets'] = array_merge($lost_widgets, (array) $sidebars_widgets['wp_inactive_widgets']);
+ wp_set_sidebars_widgets($sidebars_widgets);
- do_action('widgets_init');
+ return $sidebars_widgets;
}
-
-add_action('init', 'wp_widgets_init', 1);
-
-?>
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