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Convert search to WP_Widget. Handle upgrade of widgets without settings. Make form and update override optional. see #8441 

git-svn-id: https://develop.svn.wordpress.org/trunk@10784 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Ryan Boren 2009-03-14 16:34:08 +00:00
parent a23fda87b3
commit d20a34c176
1 changed files with 35 additions and 23 deletions
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58
wp-includes/widgets.php
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@ -73,12 +73,12 @@ class WP_Widget {
* This function should check that $new_instance is set correctly. * This function should check that $new_instance is set correctly.
* The newly calculated value of $instance should be returned. */ * The newly calculated value of $instance should be returned. */
function update($new_instance, $old_instance) { function update($new_instance, $old_instance) {
die('function WP_Widget::update() must be over-ridden in a sub-class.'); return $new_instance;
} }
/** Echo a control form for the current instance. */ /** Echo a control form for the current instance. */
function form($instance) { function form($instance) {
die('function WP_Widget::form() must be over-ridden in a sub-class.'); echo '<p>' . __('There are no options for this widget.') . '</p>';
} }
// Functions you'll need to call. // Functions you'll need to call.
@ -251,7 +251,7 @@ class WP_Widget {
$settings = get_option($this->option_name); $settings = get_option($this->option_name);
if ( !is_array($settings) ) if ( !is_array($settings) )
return array(); $settings = array();
if ( !array_key_exists('_multiwidget', $settings) ) { if ( !array_key_exists('_multiwidget', $settings) ) {
// old format, conver if single widget // old format, conver if single widget
@ -888,10 +888,14 @@ function wp_get_widget_defaults() {
function wp_convert_widget_settings($base_name, $option_name, $settings) { function wp_convert_widget_settings($base_name, $option_name, $settings) {
// This test may need expanding. // This test may need expanding.
$single = false; $single = false;
foreach ( array_keys($settings) as $number ) { if ( empty($settings) ) {
if ( !is_numeric($number) ) { $single = true;
$single = true; } else {
break; foreach ( array_keys($settings) as $number ) {
if ( !is_numeric($number) ) {
$single = true;
break;
}
} }
} }
@ -1006,7 +1010,12 @@ function wp_widget_pages_control() {
* @since 2.8.0 * @since 2.8.0
*/ */
class WP_Widget_Links extends WP_Widget { class WP_Widget_Links extends WP_Widget {
function WP_Widget_Links() {
$widget_ops = array('description' => __( "Your blogroll" ) );
$this->WP_Widget('links', __('Links'), $widget_ops);
}
function widget( $args, $instance ) { function widget( $args, $instance ) {
extract($args, EXTR_SKIP); extract($args, EXTR_SKIP);
@ -1060,20 +1069,26 @@ class WP_Widget_Links extends WP_Widget {
} }
/** /**
* Display search widget. * Search widget class
* *
* @since 2.2.0 * @since 2.8.0
*
* @param array $args Widget arguments.
*/ */
function wp_widget_search($args) { class WP_Widget_Search extends WP_Widget {
extract($args);
echo $before_widget;
// Use current theme search form if it exists function WP_Widget_Search() {
get_search_form(); $widget_ops = array('classname' => 'widget_search', 'description' => __( "A search form for your blog") );
$this->WP_Widget('search', __('Search'), $widget_ops);
}
echo $after_widget; function widget( $args, $instance ) {
extract($args);
echo $before_widget;
// Use current theme search form if it exists
get_search_form();
echo $after_widget;
}
} }
/** /**
@ -2228,16 +2243,13 @@ function wp_widgets_init() {
wp_register_sidebar_widget('archives', __('Archives'), 'wp_widget_archives', $widget_ops); wp_register_sidebar_widget('archives', __('Archives'), 'wp_widget_archives', $widget_ops);
wp_register_widget_control('archives', __('Archives'), 'wp_widget_archives_control' ); wp_register_widget_control('archives', __('Archives'), 'wp_widget_archives_control' );
$widget_ops = array('description' => __( "Your blogroll" ) ); new WP_Widget_Links();
$wp_widget_links = new WP_Widget_Links('links', __('Links'), $widget_ops);
//$wp_widget_links->register();
$widget_ops = array('classname' => 'widget_meta', 'description' => __( "Log in/out, admin, feed and WordPress links") ); $widget_ops = array('classname' => 'widget_meta', 'description' => __( "Log in/out, admin, feed and WordPress links") );
wp_register_sidebar_widget('meta', __('Meta'), 'wp_widget_meta', $widget_ops); wp_register_sidebar_widget('meta', __('Meta'), 'wp_widget_meta', $widget_ops);
wp_register_widget_control('meta', __('Meta'), 'wp_widget_meta_control' ); wp_register_widget_control('meta', __('Meta'), 'wp_widget_meta_control' );
$widget_ops = array('classname' => 'widget_search', 'description' => __( "A search form for your blog") ); new WP_Widget_Search();
wp_register_sidebar_widget('search', __('Search'), 'wp_widget_search', $widget_ops);
$widget_ops = array('classname' => 'widget_recent_entries', 'description' => __( "The most recent posts on your blog") ); $widget_ops = array('classname' => 'widget_recent_entries', 'description' => __( "The most recent posts on your blog") );
wp_register_sidebar_widget('recent-posts', __('Recent Posts'), 'wp_widget_recent_entries', $widget_ops); wp_register_sidebar_widget('recent-posts', __('Recent Posts'), 'wp_widget_recent_entries', $widget_ops);