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Move recent comments widget to WP_Widget, extend is_active_widget() to use $id_base, see #8441 

git-svn-id: http://svn.automattic.com/wordpress/trunk@11090 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
azaozz 2009-04-26 20:09:08 +00:00
parent b56c151d71
commit 15588b4080
2 changed files with 106 additions and 107 deletions
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186
wp-includes/default-widgets.php
View File

@ -504,8 +504,13 @@ class WP_Widget_Recent_Posts extends WP_Widget {
} }
function widget($args, $instance) { function widget($args, $instance) {
if ( $output = wp_cache_get('widget_recent_posts' . $args['widget_id'], 'widget') ) $cache = wp_cache_get('widget_recent_posts', 'widget');
return print($output);
if ( !is_array($cache) )
$cache = array();
if ( isset($cache[$args['widget_id']]) )
return $cache[$args['widget_id']];
ob_start(); ob_start();
extract($args); extract($args);
@ -533,7 +538,8 @@ class WP_Widget_Recent_Posts extends WP_Widget {
wp_reset_query(); // Restore global post data stomped by the_post(). wp_reset_query(); // Restore global post data stomped by the_post().
endif; endif;
wp_cache_add('widget_recent_posts' . $args['widget_id'], ob_get_flush(), 'widget'); $cache[$args['widget_id']] = ob_get_flush();
wp_cache_add('widget_recent_posts', $cache, 'widget');
} }
function update( $new_instance, $old_instance ) { function update( $new_instance, $old_instance ) {
@ -550,7 +556,7 @@ class WP_Widget_Recent_Posts extends WP_Widget {
} }
function flush_widget_cache() { function flush_widget_cache() {
wp_cache_delete('widget_recent_entries', 'widget'); wp_cache_delete('widget_recent_posts', 'widget');
} }
function form( $instance ) { function form( $instance ) {
@ -558,48 +564,65 @@ class WP_Widget_Recent_Posts extends WP_Widget {
if ( !$number = (int) $instance['number'] ) if ( !$number = (int) $instance['number'] )
$number = 5; $number = 5;
?> ?>
<p> <p><label for="<?php echo $this->get_field_id('title'); ?>">
<label for="<?php echo $this->get_field_id('title'); ?>"> <?php _e('Title:'); ?>
<?php _e('Title:'); ?> <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo $title; ?>" /></label></p>
<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo $title; ?>" />
</label> <p><label for="<?php echo $this->get_field_id('number'); ?>">
</p> <?php _e('Number of posts to show:'); ?>
<p> <input id="<?php echo $this->get_field_id('number'); ?>" name="<?php echo $this->get_field_name('number'); ?>" type="text" value="<?php echo $number; ?>" /></label>
<label for="<?php echo $this->get_field_id('number'); ?>"> <br /><small><?php _e('(at most 15)'); ?></small></p>
<?php _e('Number of posts to show:'); ?>
<input id="<?php echo $this->get_field_id('number'); ?>" name="<?php echo $this->get_field_name('number'); ?>" type="text" value="<?php echo $number; ?>" />
</label><br />
<small><?php _e('(at most 15)'); ?></small>
</p>
<?php <?php
} }
} }
/** /**
* Display recent comments widget. * Recent_Comments widget class
* *
* @since 2.2.0 * @since 2.8.0
*
* @param array $args Widget arguments.
*/ */
function wp_widget_recent_comments($args) { class WP_Widget_Recent_Comments extends WP_Widget {
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' ) ) { function WP_Widget_Recent_Comments() {
$comments = $wpdb->get_results("SELECT * FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT $number"); $widget_ops = array('classname' => 'widget_recent_comments', 'description' => __( 'The most recent comments' ) );
wp_cache_add( 'recent_comments', $comments, 'widget' ); $this->WP_Widget('recent-comments', __('Recent Comments'), $widget_ops);
$this->alt_option_name = 'widget_recent_comments';
if ( is_active_widget(false, false, $this->id_base) )
add_action( 'wp_head', array(&$this, 'recent_comments_style') );
add_action( 'comment_post', array(&$this, 'flush_widget_cache') );
add_action( 'wp_set_comment_status', array(&$this, 'flush_widget_cache') );
}
function recent_comments_style() { ?>
<style type="text/css">.recentcomments a{display:inline !important;padding:0 !important;margin:0 !important;}</style>
<?php
} }
?>
function flush_widget_cache() {
wp_cache_delete('recent_comments', 'widget');
}
function widget( $args, $instance ) {
global $wpdb, $comments, $comment;
extract($args, EXTR_SKIP);
$title = empty($instance['title']) ? __('Recent Comments') : apply_filters('widget_title', $instance['title']);
if ( !$number = (int) $instance['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 15");
wp_cache_add( 'recent_comments', $comments, 'widget' );
}
$comments = array_slice( (array) $comments, 0, $number );
?>
<?php echo $before_widget; ?> <?php echo $before_widget; ?>
<?php echo $before_title . $title . $after_title; ?> <?php echo $before_title . $title . $after_title; ?>
<ul id="recentcomments"><?php <ul id="recentcomments"><?php
@ -608,72 +631,36 @@ function wp_widget_recent_comments($args) {
endforeach; endif;?></ul> endforeach; endif;?></ul>
<?php echo $after_widget; ?> <?php echo $after_widget; ?>
<?php <?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; function update( $new_instance, $old_instance ) {
update_option('widget_recent_comments', $options); $instance = $old_instance;
wp_delete_recent_comments_cache(); $instance['title'] = strip_tags($new_instance['title']);
$instance['number'] = (int) $new_instance['number'];
$this->flush_widget_cache();
$alloptions = wp_cache_get( 'alloptions', 'options' );
if ( isset($alloptions['widget_recent_comments']) )
delete_option('widget_recent_comments');
return $instance;
} }
$title = attribute_escape($options['title']);
if ( !$number = (int) $options['number'] ) function form( $instance ) {
$number = 5; $title = attribute_escape($instance['title']);
if ( !$number = (int) $instance['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="<?php echo $this->get_field_id('title'); ?>">
<p> <?php _e('Title:'); ?>
<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> <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo $title; ?>" /></label></p>
<br />
<small><?php _e('(at most 15)'); ?></small> <p><label for="<?php echo $this->get_field_id('number'); ?>">
</p> <?php _e('Number of comments to show:'); ?>
<input type="hidden" id="recent-comments-submit" name="recent-comments-submit" value="1" /> <input id="<?php echo $this->get_field_id('number'); ?>" name="<?php echo $this->get_field_name('number'); ?>" type="text" value="<?php echo $number; ?>" /></label>
<br /><small><?php _e('(at most 15)'); ?></small></p>
<?php <?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_action('wp_head', 'wp_widget_recent_comments_style');
} }
/** /**
@ -1138,13 +1125,14 @@ function wp_widgets_init() {
register_widget('WP_Widget_Categories'); register_widget('WP_Widget_Categories');
register_widget('WP_Widget_Recent_Posts'); register_widget('WP_Widget_Recent_Posts');
register_widget('WP_Widget_Recent_Comments');
$widget_ops = array('classname' => 'widget_tag_cloud', 'description' => __( "Your most used tags in cloud format") ); $widget_ops = array('classname' => 'widget_tag_cloud', 'description' => __( "Your most used tags in cloud format") );
wp_register_sidebar_widget('tag_cloud', __('Tag Cloud'), 'wp_widget_tag_cloud', $widget_ops); wp_register_sidebar_widget('tag_cloud', __('Tag Cloud'), 'wp_widget_tag_cloud', $widget_ops);
wp_register_widget_control('tag_cloud', __('Tag Cloud'), 'wp_widget_tag_cloud_control' ); wp_register_widget_control('tag_cloud', __('Tag Cloud'), 'wp_widget_tag_cloud_control' );
wp_widget_rss_register(); wp_widget_rss_register();
wp_widget_recent_comments_register();
do_action('widgets_init'); do_action('widgets_init');
} }

27
wp-includes/widgets.php
View File

@ -783,28 +783,39 @@ function dynamic_sidebar($index = 1) {
} }
/** /**
* Whether widget is registered using callback with widget ID. * Whether widget is displayied on the front-end.
* *
* 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. * Either $callback or $id_base can be used
* With the $widget_id parameter, returns the ID of the sidebar in which the widget with that callback AND that ID is found. * $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 * @since 2.2.0
* *
* @param callback $callback Widget callback to check. * @param callback Optional, Widget callback to check.
* @param int $widget_id Optional, but needed for checking. Widget ID. * @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. * @param string $id_base Optional, the base ID of a widget created by extending WP_Widget.
* @return mixed false if widget is not active or id of sidebar in which the widget is active.
*/ */
function is_active_widget($callback, $widget_id = false) { function is_active_widget($callback = false, $widget_id = false, $id_base = false) {
global $wp_registered_widgets; global $wp_registered_widgets;
$sidebars_widgets = wp_get_sidebars_widgets(false); $sidebars_widgets = wp_get_sidebars_widgets(false);
if ( is_array($sidebars_widgets) ) foreach ( $sidebars_widgets as $sidebar => $widgets ) if ( is_array($sidebars_widgets) ) foreach ( $sidebars_widgets as $sidebar => $widgets )
if ( 'wp_inactive_widgets' == $sidebar )
continue;
if ( is_array($widgets) ) foreach ( $widgets as $widget ) if ( is_array($widgets) ) foreach ( $widgets as $widget )
if ( isset($wp_registered_widgets[$widget]['callback']) && $wp_registered_widgets[$widget]['callback'] == $callback ) if ( ( $callback && isset($wp_registered_widgets[$widget]['callback']) && $wp_registered_widgets[$widget]['callback'] == $callback ) || ( $id_base && preg_replace( '/-[0-9]+$/', '', $widget ) == $id_base ) ) {
if ( !$widget_id || $widget_id == $wp_registered_widgets[$widget]['id'] ) if ( !$widget_id || $widget_id == $wp_registered_widgets[$widget]['id'] )
return $sidebar; return $sidebar;
}
return false; return false;
} }