wp-admin/includes/dashboard.php

   1 <?php
   2
   3 // Registers dashboard widgets, handles POST data, sets up filters
   4 function wp_dashboard_setup() {
   5         global $wpdb, $wp_dashboard_sidebars;
   6         $update = false;
   7         $widget_options = get_option( 'dashboard_widget_options' );
   8         if ( !$widget_options || !is_array($widget_options) )
   9                 $widget_options = array();
  10
  11
  12         /* Register WP Dashboard Dynamic Sidebar */
  13         register_sidebar( array(
  14                 'name' => 'WordPress Dashboard',
  15                 'id' => 'wp_dashboard',
  16                 'before_widget' => "\t<div class='dashboard-widget-holder %2\$s' id='%1\$s'>\n\n\t\t<div class='dashboard-widget'>\n\n",
  17                 'after_widget' => "\t\t</div>\n\n\t</div>\n\n",
  18                 'before_title' => "\t\t\t<h3 class='dashboard-widget-title'>",
  19                 'after_title' => "</h3>\n\n"
  20         ) );
  21
  22
  23         /* Register Widgets and Controls */
  24
  25         // Recent Comments Widget
  26         if ( current_user_can( 'moderate_comments' ) && $mod_comments = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->comments WHERE comment_approved = '0'") ) {
  27                 $notice = sprintf( __ngettext( '%d comment awaiting moderation', '%d comments awaiting moderation', $mod_comments ), $mod_comments );
  28                 $notice = "<a href='edit-comments.php?comment_status=moderated'>$notice</a>";
  29         } else {
  30                 $notice = '';
  31         }
  32         wp_register_sidebar_widget( 'dashboard_recent_comments', __( 'Recent Comments' ), 'wp_dashboard_recent_comments',
  33                 array( 'all_link' => 'edit-comments.php', 'notice' => $notice, 'width' => 'half' )
  34         );
  35
  36         // Incoming Links Widget
  37         if ( !isset( $widget_options['dashboard_incoming_links'] ) ) {
  38                 $update = true;
  39                 $widget_options['dashboard_incoming_links'] = array(
  40                         'link' => apply_filters( 'dashboard_incoming_links_link', 'http://blogsearch.google.com/blogsearch?hl=en&scoring=d&partner=wordpress&q=link:' . trailingslashit( get_option('home') ) ),
  41                         'url' => apply_filters( 'dashboard_incoming_links_feed', 'http://blogsearch.google.com/blogsearch_feeds?hl=en&scoring=d&ie=utf-8&num=10&output=rss&partner=wordpress&q=link:' . trailingslashit( get_option('home') ) ),
  42                         'items' => 5,
  43                         'show_date' => 0
  44                 );
  45         }
  46         wp_register_sidebar_widget( 'dashboard_incoming_links', __( 'Incoming Links' ), 'wp_dashboard_empty',
  47                 array( 'all_link' => $widget_options['dashboard_incoming_links']['link'], 'feed_link' => $widget_options['dashboard_incoming_links']['url'], 'width' => 'half' ),
  48                 'wp_dashboard_cached_rss_widget', 'wp_dashboard_incoming_links_output'
  49         );
  50         wp_register_widget_control( 'dashboard_incoming_links', __( 'Incoming Links' ), 'wp_dashboard_rss_control', array(),
  51                 array( 'widget_id' => 'dashboard_incoming_links', 'form_inputs' => array( 'title' => false, 'show_summary' => false, 'show_author' => false ) )
  52         );
  53
  54
  55         // WP Plugins Widget
  56         wp_register_sidebar_widget( 'dashboard_plugins', __( 'Plugins' ), 'wp_dashboard_empty',
  57                 array( 'all_link' => 'http://wordpress.org/extend/plugins/', 'feed_link' => 'http://wordpress.org/extend/plugins/rss/topics/', 'width' => 'half' ),
  58                 'wp_dashboard_cached_rss_widget', 'wp_dashboard_plugins_output',
  59                 array( 'http://wordpress.org/extend/plugins/rss/browse/popular/', 'http://wordpress.org/extend/plugins/rss/browse/new/', 'http://wordpress.org/extend/plugins/rss/browse/updated/' )
  60         );
  61
  62         // Primary feed (Dev Blog) Widget
  63         if ( !isset( $widget_options['dashboard_primary'] ) ) {
  64                 $update = true;
  65                 $widget_options['dashboard_primary'] = array(
  66                         'link' => apply_filters( 'dashboard_primary_link',  __( 'http://wordpress.org/development/' ) ),
  67                         'url' => apply_filters( 'dashboard_primary_feed',  __( 'http://wordpress.org/development/feed/' ) ),
  68                         'title' => apply_filters( 'dashboard_primary_title', __( 'WordPress Development Blog' ) ),
  69                         'items' => 2,
  70                         'show_summary' => 1,
  71                         'show_author' => 0,
  72                         'show_date' => 1
  73                 );
  74         }
  75         wp_register_sidebar_widget( 'dashboard_primary', $widget_options['dashboard_primary']['title'], 'wp_dashboard_empty',
  76                 array( 'all_link' => $widget_options['dashboard_primary']['link'], 'feed_link' => $widget_options['dashboard_primary']['url'], 'width' => 'half', 'class' => 'widget_rss' ),
  77                 'wp_dashboard_cached_rss_widget', 'wp_dashboard_rss_output'
  78         );
  79         wp_register_widget_control( 'dashboard_primary', __( 'Primary Feed' ), 'wp_dashboard_rss_control', array(),
  80                 array( 'widget_id' => 'dashboard_primary' )
  81         );
  82
  83
  84         // Secondary Feed (Planet) Widget
  85         if ( !isset( $widget_options['dashboard_secondary'] ) ) {
  86                 $update = true;
  87                 $widget_options['dashboard_secondary'] = array(
  88                         'link' => apply_filters( 'dashboard_secondary_link',  __( 'http://planet.wordpress.org/' ) ),
  89                         'url' => apply_filters( 'dashboard_secondary_feed',  __( 'http://planet.wordpress.org/feed/' ) ),
  90                         'title' => apply_filters( 'dashboard_secondary_title', __( 'Other WordPress News' ) ),
  91                         'items' => 15
  92                 );
  93         }
  94         wp_register_sidebar_widget( 'dashboard_secondary', $widget_options['dashboard_secondary']['title'], 'wp_dashboard_empty',
  95                 array( 'all_link' => $widget_options['dashboard_secondary']['link'], 'feed_link' => $widget_options['dashboard_secondary']['url'], 'width' => 'full' ),
  96                 'wp_dashboard_cached_rss_widget', 'wp_dashboard_secondary_output'
  97         );
  98         wp_register_widget_control( 'dashboard_secondary', __( 'Secondary Feed' ), 'wp_dashboard_rss_control', array(),
  99                 array( 'widget_id' => 'dashboard_secondary', 'form_inputs' => array( 'show_summary' => false, 'show_author' => false, 'show_date' => false ) )
 100         );
 101
 102
 103                 /* Dashboard Widget Template
 104                 wp_register_sidebar_widget( $widget_id (unique slug) , $widget_title, $output_callback,
 105                         array(
 106                                 'all_link'  => full url for "See All" link,
 107                                 'feed_link' => full url for "RSS" link,
 108                                 'width'     => 'fourth', 'third', 'half', 'full' (defaults to 'half'),
 109                                 'height'    => 'single', 'double' (defaults to 'single'),
 110                         ),
 111                         $wp_dashboard_empty_callback (only needed if using 'wp_dashboard_empty' as your $output_callback),
 112                         $arg, $arg, $arg... (further args passed to callbacks)
 113                 );
 114
 115                 // optional: if you want users to be able to edit the settings of your widget, you need to register a widget_control
 116                 wp_register_widget_control( $widget_id, $widget_control_title, $control_output_callback,
 117                         array(), // leave an empty array here: oddity in widget code
 118                         array(
 119                                 'widget_id' => $widget_id, // Yes - again.  This is required: oddity in widget code
 120                                 'arg'       => an arg to pass to the $control_output_callback,
 121                                 'another'   => another arg to pass to the $control_output_callback,
 122                                 ...
 123                         )
 124                 );
 125                 */
 126
 127         // Hook to register new widgets
 128         do_action( 'wp_dashboard_setup' );
 129
 130         // Hard code the sidebar's widgets and order
 131         $dashboard_widgets = array();
 132         $dashboard_widgets[] = 'dashboard_recent_comments';
 133         $dashboard_widgets[] = 'dashboard_incoming_links';
 134         $dashboard_widgets[] = 'dashboard_primary';
 135         if ( current_user_can( 'activate_plugins' ) )
 136                 $dashboard_widgets[] = 'dashboard_plugins';
 137         $dashboard_widgets[] = 'dashboard_secondary';
 138
 139         // Filter widget order
 140         $dashboard_widgets = apply_filters( 'wp_dashboard_widgets', $dashboard_widgets );
 141
 142         $wp_dashboard_sidebars = array( 'wp_dashboard' => $dashboard_widgets, 'array_version' => 3.5 );
 143
 144         add_filter( 'dynamic_sidebar_params', 'wp_dashboard_dynamic_sidebar_params' );
 145
 146         if ( 'POST' == $_SERVER['REQUEST_METHOD'] && isset($_POST['widget_id']) ) {
 147                 ob_start(); // hack - but the same hack wp-admin/widgets.php uses
 148                 wp_dashboard_trigger_widget_control( $_POST['widget_id'] );
 149                 ob_end_clean();
 150                 wp_redirect( remove_query_arg( 'edit' ) );
 151                 exit;
 152         }
 153
 154         if ( $update )
 155                 update_option( 'dashboard_widget_options', $widget_options );
 156 }
 157
 158 // Echoes out the dashboard
 159 function wp_dashboard() {
 160         echo "<div id='dashboard-widgets'>\n\n";
 161
 162         // We're already filtering dynamic_sidebar_params obove
 163         add_filter( 'option_sidebars_widgets', 'wp_dashboard_sidebars_widgets' ); // here there be hackery
 164         dynamic_sidebar( 'wp_dashboard' );
 165         remove_filter( 'option_sidebars_widgets', 'wp_dashboard_sidebars_widgets' );
 166
 167         echo "<br class='clear' />\n</div>\n\n\n";
 168 }
 169
 170 // Makes sidebar_widgets option reflect the dashboard settings
 171 function wp_dashboard_sidebars_widgets() { // hackery
 172         return $GLOBALS['wp_dashboard_sidebars'];
 173 }
 174
 175 // Modifies sidbar params on the fly to set up ids, class names, titles for each widget (called once per widget)
 176 // Switches widget to edit mode if $_GET['edit']
 177 function wp_dashboard_dynamic_sidebar_params( $params ) {
 178         global $wp_registered_widgets, $wp_registered_widget_controls;
 179
 180         $sidebar_defaults = array('widget_id' => 0, 'before_widget' => '', 'after_widget' => '', 'before_title' => '', 'after_title' => '');
 181         extract( $sidebar_defaults, EXTR_PREFIX_ALL, 'sidebar' );
 182         extract( $params[0], EXTR_PREFIX_ALL, 'sidebar' );
 183
 184         if ( !isset($wp_registered_widgets[$sidebar_widget_id]) || !is_array($wp_registered_widgets[$sidebar_widget_id]) ) {
 185                 return $params;
 186         }
 187         $widget_defaults = array('id' => '', 'width' => '', 'height' => '', 'class' => '', 'feed_link' => '', 'all_link' => '', 'notice' => false, 'error' => false);
 188         extract( $widget_defaults, EXTR_PREFIX_ALL, 'widget' );
 189         extract( $wp_registered_widgets[$sidebar_widget_id], EXTR_PREFIX_ALL, 'widget' );
 190
 191         $the_classes = array();
 192         if ( in_array($widget_width, array( 'third', 'fourth', 'full' ) ) )
 193                 $the_classes[] = $widget_width;
 194
 195         if ( 'double' == $widget_height )
 196                 $the_classes[] = 'double';
 197
 198         if ( $widget_class )
 199                 $the_classes[] = $widget_class;
 200
 201         // Add classes to the widget holder
 202         if ( $the_classes )
 203                 $sidebar_before_widget = str_replace( "<div class='dashboard-widget-holder ", "<div class='dashboard-widget-holder " . join( ' ', $the_classes ) . ' ', $sidebar_before_widget );
 204
 205         $links = array();
 206         if ( $widget_all_link )
 207                 $links[] = '<a href="' . clean_url( $widget_all_link ) . '">' . __( 'See&nbsp;All' ) . '</a>';
 208
 209         $content_class = 'dashboard-widget-content';
 210         if ( current_user_can( 'edit_dashboard' ) && isset($wp_registered_widget_controls[$widget_id]) && is_callable($wp_registered_widget_controls[$widget_id]['callback']) ) {
 211                 // Switch this widget to edit mode
 212                 if ( isset($_GET['edit']) && $_GET['edit'] == $widget_id ) {
 213                         $content_class .= ' dashboard-widget-control';
 214                         $wp_registered_widgets[$widget_id]['callback'] = 'wp_dashboard_empty';
 215                         $sidebar_widget_name = $wp_registered_widget_controls[$widget_id]['name'];
 216                         $params[1] = 'wp_dashboard_trigger_widget_control';
 217                         $sidebar_before_widget .= '<form action="' . remove_query_arg( 'edit' )  . '" method="post">';
 218                         $sidebar_after_widget   = "<div class='dashboard-widget-submit'><input type='hidden' name='sidebar' value='wp_dashboard' /><input type='hidden' name='widget_id' value='$widget_id' /><input type='submit' value='" . __( 'Save' ) . "' /></div></form>$sidebar_after_widget";
 219                         $links[] = '<a href="' . remove_query_arg( 'edit' ) . '">' . __( 'Cancel' ) . '</a>';
 220                 } else {
 221                         $links[] = '<a href="' . add_query_arg( 'edit', $widget_id ) . "#$widget_id" . '">' . __( 'Edit' ) . '</a>';
 222                 }
 223         }
 224
 225         if ( $widget_feed_link )
 226                 $links[] = '<img class="rss-icon" src="' . get_option( 'siteurl' ) . '/' . WPINC . '/images/rss.png" alt="' . __( 'rss icon' ) . '" /> <a href="' . clean_url( $widget_feed_link ) . '">' . __( 'RSS' ) . '</a>';
 227
 228         $links = apply_filters( "wp_dashboard_widget_links_$widget_id", $links );
 229
 230         // Add links to widget's title bar
 231         if ( $links ) {
 232                 $sidebar_before_title .= '<span>';
 233                 $sidebar_after_title   = '</span><small>' . join( '&nbsp;|&nbsp;', $links ) . "</small><br class='clear' />$sidebar_after_title";
 234         }
 235
 236         // Could have put this in widget-content.  Doesn't really matter
 237         if ( $widget_notice )
 238                 $sidebar_after_title .= "\t\t\t<div class='dashboard-widget-notice'>$widget_notice</div>\n\n";
 239
 240         if ( $widget_error )
 241                 $sidebar_after_title .= "\t\t\t<div class='dashboard-widget-error'>$widget_error</div>\n\n";
 242
 243         $sidebar_after_title .= "\t\t\t<div class='$content_class'>\n\n";
 244
 245         $sidebar_after_widget .= "\t\t\t</div>\n\n";
 246
 247         foreach( array_keys( $params[0] ) as $key )
 248                 $$key = ${'sidebar_' . $key};
 249
 250         $params[0] = compact( array_keys( $params[0] ) );
 251
 252         return $params;
 253 }
 254
 255
 256 /* Dashboard Widgets */
 257
 258 function wp_dashboard_recent_comments( $sidebar_args ) {
 259         global $comment;
 260         extract( $sidebar_args, EXTR_SKIP );
 261
 262         echo $before_widget;
 263
 264         echo $before_title;
 265         echo $widget_name;
 266         echo $after_title;
 267
 268         $lambda = create_function( '', 'return 5;' );
 269         add_filter( 'option_posts_per_rss', $lambda ); // hack - comments query doesn't accept per_page parameter
 270         $comments_query = new WP_Query('feed=rss2&withcomments=1');
 271         remove_filter( 'option_posts_per_rss', $lambda );
 272
 273         $is_first = true;
 274
 275         if ( $comments_query->have_comments() ) {
 276                 while ( $comments_query->have_comments() ) { $comments_query->the_comment();
 277
 278                         $comment_post_url = get_permalink( $comment->comment_post_ID );
 279                         $comment_post_title = get_the_title( $comment->comment_post_ID );
 280                         $comment_post_link = "<a href='$comment_post_url'>$comment_post_title</a>";
 281                         $comment_link = '<a class="comment-link" href="' . get_comment_link() . '">#</a>';
 282                         $comment_meta = sprintf( __( 'From <strong>%1$s</strong> on %2$s %3$s' ), get_comment_author(), $comment_post_link, $comment_link );
 283
 284                         if ( $is_first ) : $is_first = false;
 285 ?>
 286                                 <blockquote><p>&#8220;<?php comment_excerpt(); ?>&#8221;</p></blockquote>
 287                                 <p class='comment-meta'><?php echo $comment_meta; ?></p>
 288 <?php
 289                                 if ( $comments_query->comment_count > 1 ) : ?>
 290                                 <ul id="dashboard-comments-list">
 291 <?php
 292                                 endif; // comment_count
 293                         else : // is_first
 294 ?>
 295
 296                                         <li class='comment-meta'><?php echo $comment_meta; ?></li>
 297 <?php
 298                         endif; // is_first
 299                 }
 300
 301                 if ( $comments_query->comment_count > 1 ) : ?>
 302                                 </ul>
 303 <?php
 304                 endif; // comment_count;
 305
 306         }
 307
 308         echo $after_widget;
 309 }
 310
 311 // $sidebar_args are handled by wp_dashboard_empty()
 312 function wp_dashboard_incoming_links_output() {
 313         $widgets = get_option( 'dashboard_widget_options' );
 314         @extract( @$widgets['dashboard_incoming_links'], EXTR_SKIP );
 315         $rss = @fetch_rss( $url );
 316         if ( isset($rss->items) && 1 < count($rss->items) )  {// Technorati returns a 1-item feed when it has no results
 317
 318                 echo "<ul>\n";
 319
 320                 $rss->items = array_slice($rss->items, 0, $items);
 321                 foreach ( $rss->items as $item ) {
 322                         $publisher = '';
 323                         $site_link = '';
 324                         $link = '';
 325                         $content = '';
 326                         $date = '';
 327                         $link = clean_url( strip_tags( $item['link'] ) );
 328
 329                         if ( isset( $item['author_uri'] ) )
 330                                 $site_link = clean_url( strip_tags( $item['author_uri'] ) );
 331
 332                         if ( !$publisher = wp_specialchars( strip_tags( isset($item['dc']['publisher']) ? $item['dc']['publisher'] : $item['author_name'] ) ) )
 333                                 $publisher = __( 'Somebody' );
 334                         if ( $site_link )
 335                                 $publisher = "<a href='$site_link'>$publisher</a>";
 336                         else
 337                                 $publisher = "<strong>$publisher</strong>";
 338
 339                         if ( isset($item['description']) )
 340                                 $content = $item['description'];
 341                         elseif ( isset($item['summary']) )
 342                                 $content = $item['summary'];
 343                         elseif ( isset($item['atom_content']) )
 344                                 $content = $item['atom_content'];
 345                         else
 346                                 $content = __( 'something' );
 347                         $content = wp_html_excerpt($content, 50) . ' ...';
 348                         if ( $link )
 349                                 $text = _c( '%1$s linked here <a href="%2$s">saying</a>, "%3$s"|feed_display' );
 350                         else
 351                                 $text = _c( '%1$s linked here saying, "%3$s"|feed_display' );
 352
 353                         if ( $show_date ) {
 354                                 if ( $show_author || $show_summary )
 355                                         $text .= _c( ' on %4$s|feed_display' );
 356                                 $date = wp_specialchars( strip_tags( isset($item['pubdate']) ? $item['pubdate'] : $item['published'] ) );
 357                                 $date = strtotime( $date );
 358                                 $date = gmdate( get_option( 'date_format' ), $date );
 359                         }
 360
 361                         echo "\t<li>" . sprintf( _c( "$text|feed_display" ), $publisher, $link, $content, $date ) . "</li>\n";
 362                 }
 363
 364                 echo "</ul>\n";
 365
 366         } else {
 367                 echo '<p>' . __('This dashboard widget queries <a href="http://blogsearch.google.com/">Google Blog Search</a> so that when another blog links to your site it will show up here. It has found no incoming links&hellip; yet. It&#8217;s okay &#8212; there is no rush.') . "</p>\n";
 368         }
 369 }
 370
 371 // $sidebar_args are handled by wp_dashboard_empty()
 372 function wp_dashboard_rss_output( $widget_id ) {
 373         $widgets = get_option( 'dashboard_widget_options' );
 374         wp_widget_rss_output( $widgets[$widget_id] );
 375 }
 376
 377 // $sidebar_args are handled by wp_dashboard_empty()
 378 function wp_dashboard_secondary_output() {
 379         $widgets = get_option( 'dashboard_widget_options' );
 380         @extract( @$widgets['dashboard_secondary'], EXTR_SKIP );
 381         $rss = @fetch_rss( $url );
 382         if ( !isset($rss->items) || 0 == count($rss->items) )
 383                 return false;
 384
 385         echo "<ul id='planetnews'>\n";
 386
 387         $rss->items = array_slice($rss->items, 0, $items);
 388         foreach ($rss->items as $item ) {
 389                 $title = wp_specialchars($item['title']);
 390                 $author = preg_replace( '|(.+?):.+|s', '$1', $item['title'] );
 391                 $post = preg_replace( '|.+?:(.+)|s', '$1', $item['title'] );
 392                 $link = clean_url($item['link']);
 393
 394                 echo "\t<li><a href='$link'><span class='post'>$post</span><span class='hidden'> - </span><cite>$author</cite></a></li>\n";
 395         }
 396
 397         echo "</ul>\n<br class='clear' />\n";
 398 }
 399
 400 // $sidebar_args are handled by wp_dashboard_empty()
 401 function wp_dashboard_plugins_output() {
 402         $popular = @fetch_rss( 'http://wordpress.org/extend/plugins/rss/browse/popular/' );
 403         $new     = @fetch_rss( 'http://wordpress.org/extend/plugins/rss/browse/new/' );
 404         $updated = @fetch_rss( 'http://wordpress.org/extend/plugins/rss/browse/updated/' );
 405
 406         foreach ( array( 'popular' => __('Most Popular'), 'new' => __('Newest Plugins'), 'updated' => __('Recently Updated') ) as $feed => $label ) {
 407                 if ( !isset($$feed->items) || 0 == count($$feed->items) )
 408                         continue;
 409
 410                 $$feed->items = array_slice($$feed->items, 0, 5);
 411                 $item_key = array_rand($$feed->items);
 412
 413                 // Eliminate some common badly formed plugin descriptions
 414                 while ( ( null !== $item_key = array_rand($$feed->items) ) && false !== strpos( $$feed->items[$item_key]['description'], 'Plugin Name:' ) )
 415                         unset($$feed->items[$item_key]);
 416
 417                 if ( !isset($$feed->items[$item_key]) )
 418                         continue;
 419
 420                 $item = $$feed->items[$item_key];
 421
 422                 // current bbPress feed item titles are: user on "topic title"
 423                 if ( preg_match( '/"(.*)"/s', $item['title'], $matches ) )
 424                         $title = $matches[1];
 425                 else // but let's make it forward compatible if things change
 426                         $title = $item['title'];
 427                 $title = wp_specialchars( $title );
 428
 429                 $description = wp_specialchars( strip_tags(html_entity_decode($item['description'], ENT_QUOTES)) );
 430
 431                 list($link, $frag) = explode( '#', $item['link'] );
 432
 433                 $link = clean_url($link);
 434                 $dlink = rtrim($link, '/') . '/download/';
 435
 436                 echo "<h4>$label</h4>\n";
 437                 echo "<h5><a href='$link'>$title</a></h5>&nbsp;<span>(<a href='$dlink'>" . __( 'Download' ) . "</a>)</span>\n";
 438                 echo "<p>$description</p>\n";
 439         }
 440 }
 441
 442 // Checks to see if all of the feed url in $check_urls are cached.
 443 // If $check_urls is empty, look for the rss feed url found in the dashboard widget optios of $widget_id.
 444 // If cached, call $callback, a function that echoes out output for this widget.
 445 // If not cache, echo a "Loading..." stub which is later replaced by AJAX call (see top of /wp-admin/index.php)
 446 function wp_dashboard_cached_rss_widget( $widget_id, $callback, $check_urls = array() ) {
 447         $loading = '<p class="widget-loading">' . __( 'Loading&#8230;' ) . '</p>';
 448
 449         if ( empty($check_urls) ) {
 450                 $widgets = get_option( 'dashboard_widget_options' );
 451                 if ( empty($widgets[$widget_id]['url']) ) {
 452                         echo $loading;
 453                         return false;
 454                 }
 455                 $check_urls = array( $widgets[$widget_id]['url'] );
 456         }
 457
 458
 459         require_once( ABSPATH . WPINC . '/rss.php' );
 460         init(); // initialize rss constants
 461
 462         $cache = new RSSCache( MAGPIE_CACHE_DIR, MAGPIE_CACHE_AGE );
 463
 464         foreach ( $check_urls as $check_url ) {
 465                 $status = $cache->check_cache( $check_url );
 466                 if ( 'HIT' !== $status ) {
 467                         echo $loading;
 468                         return false;
 469                 }
 470         }
 471
 472         if ( $callback && is_callable( $callback ) ) {
 473                 $args = array_slice( func_get_args(), 2 );
 474                 array_unshift( $args, $widget_id );
 475                 call_user_func_array( $callback, $args );
 476         }
 477
 478         return true;
 479 }
 480
 481 // Empty widget used for JS/AJAX created output.
 482 // Callback inserts content between before_widget and after_widget.  Used when widget is in edit mode.  Can also be used for custom widgets.
 483 function wp_dashboard_empty( $sidebar_args, $callback = false ) {
 484         extract( $sidebar_args, EXTR_SKIP );
 485
 486         echo $before_widget;
 487
 488         echo $before_title;
 489         echo $widget_name;
 490         echo $after_title;
 491
 492         // When in edit mode, the callback passed to this function is the widget_control callback
 493         if ( $callback && is_callable( $callback ) ) {
 494                 $args = array_slice( func_get_args(), 2 );
 495                 array_unshift( $args, $widget_id );
 496                 call_user_func_array( $callback, $args );
 497         }
 498
 499         echo $after_widget;
 500 }
 501
 502 /* Dashboard Widgets Controls. Ssee also wp_dashboard_empty() */
 503
 504 // Calls widget_control callback
 505 function wp_dashboard_trigger_widget_control( $widget_control_id = false ) {
 506         global $wp_registered_widget_controls;
 507         if ( is_scalar($widget_control_id) && $widget_control_id && isset($wp_registered_widget_controls[$widget_control_id]) && is_callable($wp_registered_widget_controls[$widget_control_id]['callback']) )
 508                 call_user_func_array( $wp_registered_widget_controls[$widget_control_id]['callback'], $wp_registered_widget_controls[$widget_control_id]['params'] );
 509 }
 510
 511 // Sets up $args to be used as input to wp_widget_rss_form(), handles POST data from RSS-type widgets
 512 function wp_dashboard_rss_control( $args ) {
 513         extract( $args );
 514         if ( !$widget_id )
 515                 return false;
 516
 517         if ( !$widget_options = get_option( 'dashboard_widget_options' ) )
 518                 $widget_options = array();
 519
 520         if ( !isset($widget_options[$widget_id]) )
 521                 $widget_options[$widget_id] = array();
 522
 523         $number = 1; // Hack to use wp_widget_rss_form()
 524         $widget_options[$widget_id]['number'] = $number;
 525
 526         if ( 'POST' == $_SERVER['REQUEST_METHOD'] && isset($_POST['widget-rss'][$number]) ) {
 527                 $_POST['widget-rss'][$number] = stripslashes_deep( $_POST['widget-rss'][$number] );
 528                 $widget_options[$widget_id] = wp_widget_rss_process( $_POST['widget-rss'][$number] );
 529                 // title is optional.  If black, fill it if possible
 530                 if ( !$widget_options[$widget_id]['title'] && isset($_POST['widget-rss'][$number]['title']) ) {
 531                         require_once(ABSPATH . WPINC . '/rss.php');
 532                         $rss = fetch_rss($widget_options[$widget_id]['url']);
 533                         $widget_options[$widget_id]['title'] = htmlentities(strip_tags($rss->channel['title']));
 534                 }
 535                 update_option( 'dashboard_widget_options', $widget_options );
 536         }
 537
 538         wp_widget_rss_form( $widget_options[$widget_id], $form_inputs );
 539 }
 540
 541 ?>