/wp-includes/widgets.php

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<?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
 */

/* Global Variables */

/** @ignore */
global $wp_registered_sidebars, $wp_registered_widgets, $wp_registered_widget_controls;

/**
 * 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();

/* Template tags & API functions */

/**
 * 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.
 *
 * @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);

	for ( $i=1; $i <= $number; $i++ ) {
		$_args = $args;

		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');
		}

		if (isset($args['id'])) {
			$_args['id'] = $args['id'];
		} else {
			$n = count($wp_registered_sidebars);
			do {
				$n++;
				$_args['id'] = "sidebar-$n";
			} while (isset($wp_registered_sidebars[$_args['id']]));
		}

		register_sidebar($_args);
	}
}

/**
 * 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.
 * @uses parse_str() Converts a string to an array to be used in the rest of the function.
 * @usedby register_sidebars()
 *
 * @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",
		'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, (array) $args);

	$wp_registered_sidebars[$sidebar['id']] = $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;

	if ( isset( $wp_registered_sidebars[$name] ) )
		unset( $wp_registered_sidebars[$name] );
}

/**
 * Register widget for sidebar with backwards compatibility.
 *
 * Allows $name to be an array that accepts either three elements to grab the
 * first element and the third for the name or just uses the first element of
 * the array for the name.
 *
 * Passes to {@link wp_register_sidebar_widget()} after argument list and
 * backwards compatibility is complete.
 *
 * @since 2.2.0
 * @uses wp_register_sidebar_widget() Passes the compiled arguments.
 *
 * @param string|int $name Widget ID.
 * @param callback $output_callback Run when widget is called.
 * @param string $classname Classname widget option.
 * @param mixed $params,... Widget parameters.
 */
function register_sidebar_widget($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 Optional. $options 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;

	$id = strtolower($id);

	if ( empty($output_callback) ) {
		unset($wp_registered_widgets[$id]);
		return;
	}

	$defaults = array('classname' => $output_callback);
	$options = wp_parse_args($options, $defaults);
	$widget = array(
		'name' => $name,
		'id' => $id,
		'callback' => $output_callback,
		'params' => array_slice(func_get_args(), 4)
	);
	$widget = array_merge($widget, $options);

	if ( is_callable($output_callback) && ( !isset($wp_registered_widgets[$id]) || did_action( 'widgets_init' ) ) )
		$wp_registered_widgets[$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 wp_specialchars( $wp_registered_widgets[$id]['description'] );
}

/**
 * Alias of {@link wp_unregister_sidebar_widget()}.
 *
 * @see wp_unregister_sidebar_widget()
 *
 * @since 2.2.0
 *
 * @param int|string $id Widget ID.
 */
function unregister_sidebar_widget($id) {
	return wp_unregister_sidebar_widget($id);
}

/**
 * Remove widget from sidebar.
 *
 * @since 2.2.0
 *
 * @param int|string $id Widget ID.
 */
function wp_unregister_sidebar_widget($id) {
	wp_register_sidebar_widget($id, '', '');
	wp_unregister_widget_control($id);
}

/**
 * Registers widget control callback for customizing options.
 *
 * Allows $name to be an array that accepts either three elements to grab the
 * first element and the third for the name or just uses the first element of
 * the array for the name.
 *
 * Passes to {@link wp_register_widget_control()} after the argument list has
 * been compiled.
 *
 * @since 2.2.0
 *
 * @param int|string $name Sidebar ID.
 * @param callback $control_callback Widget control callback to display and process form.
 * @param int $width Widget width.
 * @param int $height Widget height.
 */
function register_widget_control($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;

	$id = strtolower($id);

	if ( empty($control_callback) ) {
		unset($wp_registered_widget_controls[$id]);
		return;
	}

	if ( isset($wp_registered_widget_controls[$id]) && !did_action( 'widgets_init' ) )
		return;

	$defaults = array('width' => 250, 'height' => 200 ); // height is never used
	$options = wp_parse_args($options, $defaults);
	$options['width'] = (int) $options['width'];
	$options['height'] = (int) $options['height'];

	$widget = array(
		'name' => $name,
		'id' => $id,
		'callback' => $control_callback,
		'params' => array_slice(func_get_args(), 4)
	);
	$widget = array_merge($widget, $options);

	$wp_registered_widget_controls[$id] = $widget;
}

/**
 * Alias of {@link wp_unregister_widget_control()}.
 *
 * @since 2.2.0
 * @see wp_unregister_widget_control()
 *
 * @param int|string $id Widget ID.
 */
function unregister_widget_control($id) {
	return wp_unregister_widget_control($id);
}

/**
 * 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;

	if ( is_int($index) ) {
		$index = "sidebar-$index";
	} else {
		$index = sanitize_title($index);
		foreach ( (array) $wp_registered_sidebars as $key => $value ) {
			if ( sanitize_title($value['name']) == $index ) {
				$index = $key;
				break;
			}
		}
	}

	$sidebars_widgets = wp_get_sidebars_widgets();

	if ( empty($wp_registered_sidebars[$index]) || !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 ( (array) $sidebars_widgets[$index] as $id ) {
		$params = array_merge(
			array( array_merge( $sidebar, array('widget_id' => $id, 'widget_name' => $wp_registered_widgets[$id]['name']) ) ),
			(array) $wp_registered_widgets[$id]['params']
		);

		// Substitute HTML id and class attributes into before_widget
		$classname_ = '';
		foreach ( (array) $wp_registered_widgets[$id]['classname'] as $cn ) {
			if ( is_string($cn) )
				$classname_ .= '_' . $cn;
			elseif ( is_object($cn) )
				$classname_ .= '_' . get_class($cn);
		}
		$classname_ = ltrim($classname_, '_');
		$params[0]['before_widget'] = sprintf($params[0]['before_widget'], $id, $classname_);

		$params = apply_filters( 'dynamic_sidebar_params', $params );

		$callback = $wp_registered_widgets[$id]['callback'];

		if ( is_callable($callback) ) {
			call_user_func_array($callback, $params);
			$did_one = true;
		}
	}

	return $did_one;
}

/**
 * Whether widget is registered using callback with widget ID.
 *
 * 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 is found.
 * With the $widget_id parameter, returns the ID of the sidebar in which the widget with that callback AND that ID is found.
 *
 * @since 2.2.0
 *
 * @param callback $callback Widget callback to check.
 * @param int $widget_id Optional, but needed for checking. Widget ID.
/* @return mixed false if widget is not active or id of sidebar in which the widget is active.
 */
function is_active_widget($callback, $widget_id = false) {
	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 $widget )
			if ( isset($wp_registered_widgets[$widget]['callback']) && $wp_registered_widgets[$widget]['callback'] == $callback )
				if ( !$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 ( (array) $wp_registered_sidebars as $index => $sidebar ) {
		if ( count($sidebars_widgets[$index]) ) {
			foreach ( (array) $sidebars_widgets[$index] as $widget )
				if ( array_key_exists($widget, $wp_registered_widgets) )
					return true;
		}
	}
	return false;
}

/* Internal Functions */

/**
 * 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 $update Optional, default is true. Whether to save upgrade of widget array list.
 * @return array Upgraded list of widgets to version 2 array format.
 */
function wp_get_sidebars_widgets($update = true) {
	global $wp_registered_widgets, $wp_registered_sidebars;

	$sidebars_widgets = get_option('sidebars_widgets', array());
	$_sidebars_widgets = array();

	if ( !isset($sidebars_widgets['array_version']) )
		$sidebars_widgets['array_version'] = 1;

	switch ( $sidebars_widgets['array_version'] ) {
		case 1 :
			foreach ( (array) $sidebars_widgets as $index => $sidebar )
			if ( is_array($sidebar) )
			foreach ( (array) $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;
				}

				$found = false;

				foreach ( $wp_registered_widgets as $widget_id => $widget ) {
					if ( strtolower($widget['name']) == strtolower($name) ) {
						$_sidebars_widgets[$index][$i] = $widget['id'];
						$found = true;
						break;
					} elseif ( sanitize_title($widget['name']) == sanitize_title($name) ) {
						$_sidebars_widgets[$index][$i] = $widget['id'];
						$found = true;
						break;
					}
				}

				if ( $found )
					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 ( (array) $sidebars as $id ) {
					if ( array_key_exists( $id, $sidebars_widgets ) ) {
						$_sidebars_widgets[$id] = $sidebars_widgets[$id];
						unset($sidebars_widgets[$id], $sidebars[$id]);
					}
				}

				// 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;

				$_sidebars_widgets['array_version'] = 3;
				$sidebars_widgets = $_sidebars_widgets;
				unset($_sidebars_widgets);
			}

			if ( $update )
				update_option('sidebars_widgets', $sidebars_widgets);
	}

	if ( 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 ( (array) $wp_registered_sidebars as $index => $sidebar )
		$defaults[$index] = array();

	return $defaults;
}

/* Default Widgets */

/**
 * Display pages widget.
 *
 * @since 2.2.0
 *
 * @param array $args Widget arguments.
 */
function wp_widget_pages( $args ) {
	extract( $args );
	$options = get_option( 'widget_pages' );

	$title = empty( $options['title'] ) ? __( 'Pages' ) : apply_filters('widget_title', $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
	}
}

/**
 * Display and process pages widget options form.
 *
 * @since 2.2.0
 */
function wp_widget_pages_control() {
	$options = $newoptions = get_option('widget_pages');
	if ( isset($_POST['pages-submit']) ) {
		$newoptions['title'] = strip_tags(stripslashes($_POST['pages-title']));

		$sortby = stripslashes( $_POST['pages-sortby'] );

		if ( in_array( $sortby, array( 'post_title', 'menu_order', 'ID' ) ) ) {
			$newoptions['sortby'] = $sortby;
		} else {
			$newoptions['sortby'] = 'menu_order';
		}

		$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 class="widefat" 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" class="widefat">
					<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" class="widefat" /></label>
			<br />
			<small><?php _e( 'Page IDs, separated by commas.' ); ?></small>
		</p>
		<input type="hidden" id="pages-submit" name="pages-submit" value="1" />
<?php
}

/**
 * Links widget class
 *
 * @since 2.8.0
 */
class WP_Widget_Links extends WP_Widgets {
	
	function widget( $args, $instance ) {
		extract($args, EXTR_SKIP);

		$show_description = isset($instance['description']) ? $instance['description'] : false;
		$show_name = isset($instance['name']) ? $instance['name'] : false;
		$show_rating = isset($instance['rating']) ? $instance['rating'] : false;
		$show_images = isset($instance['images']) ? $instance['images'] : true;
	
		$before_widget = preg_replace('/id="[^"]*"/','id="%id"', $before_widget);
		wp_list_bookmarks(apply_filters('widget_links_args', array(
			'title_before' => $before_title, 'title_after' => $after_title,
			'category_before' => $before_widget, 'category_after' => $after_widget,
			'show_images' => $show_images, 'show_description' => $show_description,
			'show_name' => $show_name, 'show_rating' => $show_rating,
			'class' => 'linkcat widget'
		)));
	}
	
	function update( $new_instance, $old_instance ) {
		if( !isset($new_instance['submit']) ) // user clicked cancel?
			return false;

		return $new_instance;
	}
	
	function form( $instance ) {

		//Defaults
		$instance = wp_parse_args( (array) $instance, array( 'images' => true, 'name' => true, 'description' => false, 'rating' => false) );
/*
		if ( isset($_POST['links-submit']) ) {
			$newoptions = array();
			$newoptions['description'] = isset($_POST['links-description']);
			$newoptions['name'] = isset($_POST['links-name']);
			$newoptions['rating'] = isset($_POST['links-rating']);
			$newoptions['images'] = isset($_POST['links-images']);

			if ( $instance != $newoptions ) {
				$instance = $newoptions;
				update_option('widget_links', $instance);
			}
		}
*/
?>
		<p>
		<label for="<?php echo $this->get_field_id('images'); ?>">
		<input class="checkbox" type="checkbox" <?php checked($instance['images'], true) ?> id="<?php echo $this->get_field_id('images'); ?>" name="<?php echo $this->get_field_name('images'); ?>" /> <?php _e('Show Link Image'); ?></label><br />
		<label for="<?php echo $this->get_field_id('name'); ?>">
		<input class="checkbox" type="checkbox" <?php checked($instance['name'], true) ?> id="<?php echo $this->get_field_id('name'); ?>" name="<?php echo $this->get_field_name('name'); ?>" /> <?php _e('Show Link Name'); ?></label><br />
		<label for="<?php echo $this->get_field_id('description'); ?>">
		<input class="checkbox" type="checkbox" <?php checked($instance['description'], true) ?> id="<?php echo $this->get_field_id('description'); ?>" name="<?php echo $this->get_field_name('description'); ?>" /> <?php _e('Show Link Description'); ?></label><br />
		<label for="<?php echo $this->get_field_id('rating'); ?>">
		<input class="checkbox" type="checkbox" <?php checked($instance['rating'], true) ?> id="<?php echo $this->get_field_id('rating'); ?>" name="<?php echo $this->get_field_name('rating'); ?>" /> <?php _e('Show Link Rating'); ?></label>
		<input type="hidden" id="<?php echo $this->get_field_id('submit'); ?>" name="<?php echo $this->get_field_name('submit'); ?>" value="1" />
		</p>
<?php
	}
}

/**
 * Display search widget.
 *
 * @since 2.2.0
 *
 * @param array $args Widget arguments.
 */
function wp_widget_search($args) {
	extract($args);
	echo $before_widget;

	// Use current theme search form if it exists
	get_search_form();

	echo $after_widget;
}

/**
 * Display archives widget.
 *
 * @since 2.2.0
 *
 * @param array $args Widget arguments.
 */
function wp_widget_archives($args) {
	extract($args);
	$options = get_option('widget_archives');
	$c = $options['count'] ? '1' : '0';
	$d = $options['dropdown'] ? '1' : '0';
	$title = empty($options['title']) ? __('Archives') : apply_filters('widget_title', $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;
}

/**
 * Display and process archives widget options form.
 *
 * @since 2.2.0
 */
function wp_widget_archives_control() {
	$options = $newoptions = get_option('widget_archives');
	if ( isset($_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 class="widefat" id="archives-title" name="archives-title" type="text" value="<?php echo $title; ?>" /></label></p>
			<p>
				<label for="archives-count"><input class="checkbox" type="checkbox" <?php echo $count; ?> id="archives-count" name="archives-count" /> <?php _e('Show post counts'); ?></label>
				<br />
				<label for="archives-dropdown"><input class="checkbox" type="checkbox" <?php echo $dropdown; ?> id="archives-dropdown" name="archives-dropdown" /> <?php _e('Display as a drop down'); ?></label>
			</p>
			<input type="hidden" id="archives-submit" name="archives-submit" value="1" />
<?php
}

/**
 * Display meta widget.
 *
 * Displays log in/out, RSS feed links, etc.
 *
 * @since 2.2.0
 *
 * @param array $args Widget arguments.
 */
function wp_widget_meta($args) {
	extract($args);
	$options = get_option('widget_meta');
	$title = empty($options['title']) ? __('Meta') : apply_filters('widget_title', $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
}

/**
 * Display and process meta widget options form.
 *
 * @since 2.2.0
 */
function wp_widget_meta_control() {
	$options = $newoptions = get_option('widget_meta');
	if ( isset($_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 class="widefat" 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
}

/**
 * Display calendar widget.
 *
 * @since 2.2.0
 *
 * @param array $args Widget arguments.
 */
function wp_widget_calendar($args) {
	extract($args);
	$options = get_option('widget_calendar');
	$title = apply_filters('widget_title', $options['title']);
	if ( empty($title) )
		$title = '&nbsp;';
	echo $before_widget . $before_title . $title . $after_title;
	echo '<div id="calendar_wrap">';
	get_calendar();
	echo '</div>';
	echo $after_widget;
}

/**
 * Display and process calendar widget options form.
 *
 * @since 2.2.0
 */
function wp_widget_calendar_control() {
	$options = $newoptions = get_option('widget_calendar');
	if ( isset($_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 class="widefat" 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
}

/**
 * Display the Text widget, depending on the widget number.
 *
 * Supports multiple text widgets and keeps track of the widget number by using
 * the $widget_args parameter. The option 'widget_text' is used to store the
 * content for the widgets. The content and title are passed through the
 * 'widget_text' and 'widget_title' filters respectively.
 *
 * @since 2.2.0
 *
 * @param array $args Widget arguments.
 * @param int $number Widget number.
 */
function wp_widget_text($args, $widget_args = 1) {
	extract( $args, EXTR_SKIP );
	if ( is_numeric($widget_args) )
		$widget_args = array( 'number' => $widget_args );
	$widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) );
	extract( $widget_args, EXTR_SKIP );

	$options = get_option('widget_text');
	if ( !isset($options[$number]) )
		return;

	$title = apply_filters('widget_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
}

/**
 * Display and process text widget options form.
 *
 * @since 2.2.0
 *
 * @param int $widget_args Widget number.
 */
function wp_widget_text_control($widget_args) {
	global $wp_registered_widgets;
	static $updated = false;

	if ( is_numeric($widget_args) )
		$widget_args = array( 'number' => $widget_args );
	$widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) );
	extract( $widget_args, EXTR_SKIP );

	$options = get_option('widget_text');
	if ( !is_array($options) )
		$options = array();

	if ( !$updated && !empty($_POST['sidebar']) ) {
		$sidebar = (string) $_POST['sidebar'];

		$sidebars_widgets = wp_get_sidebars_widgets();
		if ( isset($sidebars_widgets[$sidebar]) )
			$this_sidebar =& $sidebars_widgets[$sidebar];
		else
			$this_sidebar = array();

		foreach ( (array) $this_sidebar as $_widget_id ) {
			if ( 'wp_widget_text' == $wp_registered_widgets[$_widget_id]['callback'] && isset($wp_registered_widgets[$_widget_id]['params'][0]['number']) ) {
				$widget_number = $wp_registered_widgets[$_widget_id]['params'][0]['number'];
				if ( !in_array( "text-$widget_number", $_POST['widget-id'] ) ) // the widget has been removed.
					unset($options[$widget_number]);
			}
		}

		foreach ( (array) $_POST['widget-text'] as $widget_number => $widget_text ) {
			if ( !isset($widget_text['text']) && isset($options[$widget_number]) ) // user clicked cancel
				continue;
			$title = strip_tags(stripslashes($widget_text['title']));
			if ( current_user_can('unfiltered_html') )
				$text = stripslashes( $widget_text['text'] );
			else
				$text = stripslashes(wp_filter_post_kses( $widget_text['text'] ));
			$options[$widget_number] = compact( 'title', 'text' );
		}

		update_option('widget_text', $options);
		$updated = true;
	}

	if ( -1 == $number ) {
		$title = '';
		$text = '';
		$number = '%i%';
	} else {
		$title = attribute_escape($options[$number]['title']);
		$text = format_to_edit($options[$number]['text']);
	}
?>
		<p>
			<input class="widefat" id="text-title-<?php echo $number; ?>" name="widget-text[<?php echo $number; ?>][title]" type="text" value="<?php echo $title; ?>" />
			<textarea class="widefat" rows="16" cols="20" id="text-text-<?php echo $number; ?>" name="widget-text[<?php echo $number; ?>][text]"><?php echo $text; ?></textarea>
			<input type="hidden" name="widget-text[<?php echo $number; ?>][submit]" value="1" />
		</p>
<?php
}

/**
 * Register text widget on startup.
 *
 * @since 2.2.0
 */
function wp_widget_text_register() {
	if ( !$options = get_option('widget_text') )
		$options = array();
	$widget_ops = array('classname' => 'widget_text', 'description' => __('Arbitrary text or HTML'));
	$control_ops = array('width' => 400, 'height' => 350, 'id_base' => 'text');
	$name = __('Text');

	$id = false;
	foreach ( (array) array_keys($options) as $o ) {
		// Old widgets can have null values for some reason
		if ( !isset($options[$o]['title']) || !isset($options[$o]['text']) )
			continue;
		$id = "text-$o"; // Never never never translate an id
		wp_register_sidebar_widget($id, $name, 'wp_widget_text', $widget_ops, array( 'number' => $o ));
		wp_register_widget_control($id, $name, 'wp_widget_text_control', $control_ops, array( 'number' => $o ));
	}

	// If there are none, we register the widget's existance with a generic template
	if ( !$id ) {
		wp_register_sidebar_widget( 'text-1', $name, 'wp_widget_text', $widget_ops, array( 'number' => -1 ) );
		wp_register_widget_control( 'text-1', $name, 'wp_widget_text_control', $control_ops, array( 'number' => -1 ) );
	}
}

/**
 * Display categories widget.
 *
 * Allows multiple category widgets.
 *
 * @since 2.2.0
 *
 * @param array $args Widget arguments.
 * @param int $number Widget number.
 */
function wp_widget_categories($args, $widget_args = 1) {
	extract($args, EXTR_SKIP);
	if ( is_numeric($widget_args) )
		$widget_args = array( 'number' => $widget_args );
	$widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) );
	extract($widget_args, EXTR_SKIP);

	$options = get_option('widget_categories');
	if ( !isset($options[$number]) )
		return;

	$c = $options[$number]['count'] ? '1' : '0';
	$h = $options[$number]['hierarchical'] ? '1' : '0';
	$d = $options[$number]['dropdown'] ? '1' : '0';

	$title = empty($options[$number]['title']) ? __('Categories') : apply_filters('widget_title', $options[$number]['title']);

	echo $before_widget;
	echo $before_title . $title . $after_title;

	$cat_args = array('orderby' => 'name', 'show_count' => $c, 'hierarchical' => $h);

	if ( $d ) {
		$cat_args['show_option_none'] = __('Select Category');
		wp_dropdown_categories($cat_args);
?>

<script type='text/javascript'>
/* <![CDATA[ */
	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>

<?php
	} else {
?>
		<ul>
		<?php
			$cat_args['title_li'] = '';
			wp_list_categories($cat_args);
		?>
		</ul>
<?php
	}

	echo $after_widget;
}

/**
 * Display and process categories widget options form.
 *
 * @since 2.2.0
 *
 * @param int $widget_args Widget number.
 */
function wp_widget_categories_control( $widget_args ) {
	global $wp_registered_widgets;
	static $updated = false;

	if ( is_numeric($widget_args) )
		$widget_args = array( 'number' => $widget_args );
	$widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) );
	extract($widget_args, EXTR_SKIP);

	$options = get_option('widget_categories');

	if ( !is_array( $options ) )
		$options = array();

	if ( !$updated && !empty($_POST['sidebar']) ) {
		$sidebar = (string) $_POST['sidebar'];

		$sidebars_widgets = wp_get_sidebars_widgets();
		if ( isset($sidebars_widgets[$sidebar]) )
			$this_sidebar =& $sidebars_widgets[$sidebar];
		else
			$this_sidebar = array();

		foreach ( (array) $this_sidebar as $_widget_id ) {
			if ( 'wp_widget_categories' == $wp_registered_widgets[$_widget_id]['callback'] && isset($wp_registered_widgets[$_widget_id]['params'][0]['number']) ) {
				$widget_number = $wp_registered_widgets[$_widget_id]['params'][0]['number'];
				if ( !in_array( "categories-$widget_number", $_POST['widget-id'] ) ) // the widget has been removed.
					unset($options[$widget_number]);
			}
		}

		foreach ( (array) $_POST['widget-categories'] as $widget_number => $widget_cat ) {
			if ( !isset($widget_cat['title']) && isset($options[$widget_number]) ) // user clicked cancel
				continue;
			$title = trim(strip_tags(stripslashes($widget_cat['title'])));
			$count = isset($widget_cat['count']);
			$hierarchical = isset($widget_cat['hierarchical']);
			$dropdown = isset($widget_cat['dropdown']);
			$options[$widget_number] = compact( 'title', 'count', 'hierarchical', 'dropdown' );
		}

		update_option('widget_categories', $options);
		$updated = true;
	}

	if ( -1 == $number ) {
		$title = '';
		$count = false;
		$hierarchical = false;
		$dropdown = false;
		$number = '%i%';
	} else {
		$title = attribute_escape( $options[$number]['title'] );
		$count = (bool) $options[$number]['count'];
		$hierarchical = (bool) $options[$number]['hierarchical'];
		$dropdown = (bool) $options[$number]['dropdown'];
	}
?>
			<p>
				<label for="categories-title-<?php echo $number; ?>">
					<?php _e( 'Title:' ); ?>
					<input class="widefat" id="categories-title-<?php echo $number; ?>" name="widget-categories[<?php echo $number; ?>][title]" 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="widget-categories[<?php echo $number; ?>][dropdown]"<?php checked( $dropdown ); ?> />
					<?php _e( 'Show as dropdown' ); ?>
				</label>
				<br />
				<label for="categories-count-<?php echo $number; ?>">
					<input type="checkbox" class="checkbox" id="categories-count-<?php echo $number; ?>" name="widget-categories[<?php echo $number; ?>][count]"<?php checked( $count ); ?> />
					<?php _e( 'Show post counts' ); ?>
				</label>
				<br />
				<label for="categories-hierarchical-<?php echo $number; ?>">
					<input type="checkbox" class="checkbox" id="categories-hierarchical-<?php echo $number; ?>" name="widget-categories[<?php echo $number; ?>][hierarchical]"<?php checked( $hierarchical ); ?> />
					<?php _e( 'Show hierarchy' ); ?>
				</label>
			</p>

			<input type="hidden" name="widget-categories[<?php echo $number; ?>][submit]" value="1" />
<?php
}

/**
 * Register categories widget on startup.
 *
 * @since 2.3.0
 */
function wp_widget_categories_register() {
	if ( !$options = get_option( 'widget_categories' ) )
		$options = array();

	if ( isset($options['title']) )
		$options = wp_widget_categories_upgrade();

	$widget_ops = array( 'classname' => 'widget_categories', 'description' => __( "A list or dropdown of categories" ) );

	$name = __( 'Categories' );

	$id = false;
	foreach ( (array) array_keys($options) as $o ) {
		// Old widgets can have null values for some reason
		if ( !isset($options[$o]['title']) )
			continue;
		$id = "categories-$o";
		wp_register_sidebar_widget( $id, $name, 'wp_widget_categories', $widget_ops, array( 'number' => $o ) );
		wp_register_widget_control( $id, $name, 'wp_widget_categories_control', array( 'id_base' => 'categories' ), array( 'number' => $o ) );
	}

	// If there are none, we register the widget's existance with a generic template
	if ( !$id ) {
		wp_register_sidebar_widget( 'categories-1', $name, 'wp_widget_categories', $widget_ops, array( 'number' => -1 ) );
		wp_register_widget_control( 'categories-1', $name, 'wp_widget_categories_control', array( 'id_base' => 'categories' ), array( 'number' => -1 ) );
	}
}

/**
 * Upgrade previous category widget to current version.
 *
 * @since 2.3.0
 *
 * @return array
 */
function wp_widget_categories_upgrade() {
	$options = get_option( 'widget_categories' );

	if ( !isset( $options['title'] ) )
		return $options;

	$newoptions = array( 1 => $options );

	update_option( 'widget_categories', $newoptions );

	$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 ( $new_widgets != $sidebars_widgets )
			update_option( 'sidebars_widgets', $new_widgets );
	}

	return $newoptions;
}

/**
 * Display recent entries widget.
 *
 * @since 2.2.0
 *
 * @param array $args Widget arguments.
 * @return int Displayed cache.
 */
function wp_widget_recent_entries($args) {
	if ( '%BEG_OF_TITLE%' != $args['before_title'] ) {
		if ( $output = wp_cache_get('widget_recent_entries', 'widget') )
			return print($output);
		ob_start();
	}

	extract($args);
	$options = get_option('widget_recent_entries');
	$title = empty($options['title']) ? __('Recent Posts') : apply_filters('widget_title', $options['title']);
	if ( !$number = (int) $options['number'] )
		$number = 10;
	else if ( $number < 1 )
		$number = 1;
	else if ( $number > 15 )
		$number = 15;

	$r = new WP_Query(array('showposts' => $number, 'what_to_show' => 'posts', 'nopaging' => 0, 'post_status' => 'publish', 'caller_get_posts' => 1));
	if ($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
		wp_reset_query();  // Restore global post data stomped by the_post().
	endif;

	if ( '%BEG_OF_TITLE%' != $args['before_title'] )
		wp_cache_add('widget_recent_entries', ob_get_flush(), 'widget');
}

/**
 * Remove recent entries widget items cache.
 *
 * @since 2.2.0
 */
function wp_flush_widget_recent_entries() {
	wp_cache_delete('widget_recent_entries', 'widget');
}

add_action('save_post', 'wp_flush_widget_recent_entries');
add_action('deleted_post', 'wp_flush_widget_recent_entries');
add_action('switch_theme', 'wp_flush_widget_recent_entries');

/**
 * Display and process recent entries widget options form.
 *
 * @since 2.2.0
 */
function wp_widget_recent_entries_control() {
	$options = $newoptions = get_option('widget_recent_entries');
	if ( isset($_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 class="widefat" 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>
				<br />
				<small><?php _e('(at most 15)'); ?></small>
			</p>
			<input type="hidden" id="recent-entries-submit" name="recent-entries-submit" value="1" />
<?php
}

/**
 * Display recent comments widget.
 *
 * @since 2.2.0
 *
 * @param array $args Widget arguments.
 */
function wp_widget_recent_comments($args) {
	global $wpdb, $comments, $comment;
	extract($args, EXTR_SKIP);
	$options = get_option('widget_recent_comments');
	$title = empty($options['title']) ? __('Recent Comments') : apply_filters('widget_title', $options['title']);
	if ( !$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 * 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 ( (array) $comments as $comment) :
			echo  '<li class="recentcomments">' . sprintf(__('%1$s on %2$s'), get_comment_author_link(), '<a href="' . clean_url( get_comment_link($comment->comment_ID) ) . '">' . get_the_title($comment->comment_post_ID) . '</a>') . '</li>';
			endforeach; endif;?></ul>
		<?php echo $after_widget; ?>
<?php
}

/**
 * Remove the cache for recent comments widget.
 *
 * @since 2.2.0
 */
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' );

/**
 * Display and process recent comments widget options form.
 *
 * @since 2.2.0
 */
function wp_widget_recent_comments_control() {
	$options = $newoptions = get_option('widget_recent_comments');
	if ( isset($_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 class="widefat" 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>
				<br />
				<small><?php _e('(at most 15)'); ?></small>
			</p>
			<input type="hidden" id="recent-comments-submit" name="recent-comments-submit" value="1" />
<?php
}

/**
 * Display the style for recent comments widget.
 *
 * @since 2.2.0
 */
function wp_widget_recent_comments_style() {
?>
<style type="text/css">.recentcomments a{display:inline !important;padding: 0 !important;margin: 0 !important;}</style>
<?php
}

/**
 * Register recent comments with control and hook for 'wp_head' action.
 *
 * @since 2.2.0
 */
function wp_widget_recent_comments_register() {
	$widget_ops = array('classname' => 'widget_recent_comments', 'description' => __( 'The most recent comments' ) );
	wp_register_sidebar_widget('recent-comments', __('Recent Comments'), 'wp_widget_recent_comments', $widget_ops);
	wp_register_widget_control('recent-comments', __('Recent Comments'), 'wp_widget_recent_comments_control');

	if ( is_active_widget('wp_widget_recent_comments') )
		add_acti…