wp-admin/widgets.php

   1 <?php
   2 /**
   3  * Widgets administration panel.
   4  *
   5  * @package WordPress
   6  * @subpackage Administration
   7  */
   8
   9 /** WordPress Administration Bootstrap */
  10 require_once( 'admin.php' );
  11
  12 /** WordPress Administration Widgets API */
  13 require_once(ABSPATH . 'wp-admin/includes/widgets.php');
  14
  15 if ( ! current_user_can('switch_themes') )
  16         wp_die( __( 'Cheatin&#8217; uh?' ));
  17
  18 wp_enqueue_script( array( 'wp-lists', 'admin-widgets' ) );
  19 wp_admin_css( 'widgets' );
  20
  21 do_action( 'sidebar_admin_setup' );
  22
  23 $title = __( 'Widgets' );
  24 $parent_file = 'themes.php';
  25
  26 // $sidebar = What sidebar are we editing?
  27 if ( isset($_GET['sidebar']) && isset($wp_registered_sidebars[$_GET['sidebar']]) ) {
  28         $sidebar = attribute_escape( $_GET['sidebar'] );
  29 } elseif ( is_array($wp_registered_sidebars) && !empty($wp_registered_sidebars) ) {
  30         // By default we look at the first defined sidebar
  31         $sidebar = array_shift( $keys = array_keys($wp_registered_sidebars) );
  32 } else {
  33         // If no sidebars, die.
  34         require_once( 'admin-header.php' );
  35 ?>
  36
  37         <div class="wrap">
  38         <?php screen_icon(); ?>
  39         <h2><?php echo wp_specialchars( $title ); ?></h2>
  40                 <div class="error">
  41                         <p><?php _e( 'No Sidebars Defined' ); ?></p>
  42                 </div>
  43                 <p><?php _e( 'The theme you are currently using isn&#8217;t widget-aware, meaning that it has no sidebars that you are able to change. For information on making your theme widget-aware, please <a href="http://codex.wordpress.org/Widgetizing_Themes">follow these instructions</a>.' ); ?></p>
  44         </div>
  45
  46 <?php
  47         require_once( 'admin-footer.php' );
  48         exit;
  49 }
  50
  51 // These are the widgets grouped by sidebar
  52 $sidebars_widgets = wp_get_sidebars_widgets();
  53 if ( empty( $sidebars_widgets ) )
  54         $sidebars_widgets = wp_get_widget_defaults();
  55
  56 // for the sake of PHP warnings
  57 if ( empty( $sidebars_widgets[$sidebar] ) )
  58         $sidebars_widgets[$sidebar] = array();
  59
  60 $http_post = 'post' == strtolower($_SERVER['REQUEST_METHOD']);
  61
  62 // We're updating a sidebar
  63 if ( $http_post && isset($sidebars_widgets[$_POST['sidebar']]) ) {
  64         check_admin_referer( 'edit-sidebar_' . $_POST['sidebar'] );
  65
  66         /* Hack #1
  67          * The widget_control is overloaded.  It updates the widget's options AND echoes out the widget's HTML form.
  68          * Since we want to update before sending out any headers, we have to catch it with an output buffer,
  69          */
  70         ob_start();
  71                 /* There can be multiple widgets of the same type, but the widget_control for that
  72                  * widget type needs only be called once if it's a multi-widget.
  73                  */
  74                 $already_done = array();
  75
  76                 foreach ( $wp_registered_widget_controls as $name => $control ) {
  77                         if ( in_array( $control['callback'], $already_done ) )
  78                                 continue;
  79
  80                         if ( is_callable( $control['callback'] ) ) {
  81                                 call_user_func_array( $control['callback'], $control['params'] );
  82                                 $control_output = ob_get_contents();
  83                                 if ( false !== strpos( $control_output, '%i%' ) ) // if it's a multi-widget, only call control function once.
  84                                         $already_done[] = $control['callback'];
  85                         }
  86
  87                         ob_clean();
  88                 }
  89         ob_end_clean();
  90
  91         // Prophylactic.  Take out empty ids.
  92         foreach ( (array) $_POST['widget-id'] as $key => $val )
  93                 if ( !$val )
  94                         unset($_POST['widget-id'][$key]);
  95
  96         // Reset the key numbering and store
  97         $new_sidebar = isset( $_POST['widget-id'] ) && is_array( $_POST['widget-id'] ) ? array_values( $_POST['widget-id'] ) : array();
  98         $sidebars_widgets[$_POST['sidebar']] = $new_sidebar;
  99         wp_set_sidebars_widgets( $sidebars_widgets );
 100
 101         wp_redirect( add_query_arg( 'message', 'updated' ) );
 102         exit;
 103 }
 104
 105 // What widget (if any) are we editing
 106 $edit_widget = -1;
 107
 108 $query_args = array('add', 'remove', 'key', 'edit', '_wpnonce', 'message', 'base' );
 109
 110 if ( isset($_GET['add']) && $_GET['add'] ) {
 111         // Add to the end of the sidebar
 112         $control_callback;
 113         if ( isset($wp_registered_widgets[$_GET['add']]) ) {
 114                 check_admin_referer( "add-widget_$_GET[add]" );
 115                 $sidebars_widgets[$sidebar][] = $_GET['add'];
 116                 wp_set_sidebars_widgets( $sidebars_widgets );
 117         } elseif ( isset($_GET['base']) && isset($_GET['key']) ) { // It's a multi-widget
 118                 check_admin_referer( "add-widget_$_GET[add]" );
 119                 // Copy minimal info from an existing instance of this widget to a new instance
 120                 foreach ( $wp_registered_widget_controls as $control ) {
 121                         if ( $_GET['base'] === $control['id_base'] ) {
 122                                 $control_callback = $control['callback'];
 123                                 $num = (int) $_GET['key'];
 124                                 $control['params'][0]['number'] = $num;
 125                                 $control['id'] = $control['id_base'] . '-' . $num;
 126                                 $wp_registered_widget_controls[$control['id']] = $control;
 127                                 $sidebars_widgets[$sidebar][] = $control['id'];
 128                                 break;
 129                         }
 130                 }
 131         }
 132
 133         // it's a multi-widget.  The only way to add multi-widgets without JS is to actually submit POST content...
 134         // so here we go
 135         if ( is_callable( $control_callback ) ) {
 136                 require_once( 'admin-header.php' );
 137         ?>
 138                 <div class="wrap">
 139                 <h2><?php _e( 'Add Widget' ); ?></h2>
 140                 <br />
 141                 <form action="<?php echo clean_url( remove_query_arg( $query_args ) ); ?>" method="post">
 142
 143                         <ul class="widget-control-list">
 144                                 <li class="widget-list-control-item">
 145                                         <div class="widget-top">
 146                                         <h4 class="widget-title"><?php echo $control['name']; ?></h4>
 147                                         </div>
 148                                         <div class="widget-control" style="display: block;">
 149         <?php
 150                                                 call_user_func_array( $control_callback, $control['params'] );
 151         ?>
 152                                                 <div class="widget-control-actions">
 153                                                         <input type="submit" class="button" value="<?php _e( 'Add Widget' ); ?>" />
 154                                                         <input type="hidden" id='sidebar' name='sidebar' value="<?php echo $sidebar; ?>" />
 155         <?php   wp_nonce_field ( 'edit-sidebar_' . $sidebar );
 156                 foreach ( $sidebars_widgets[$sidebar] as $sidebar_widget_id ) : ?>
 157                                                         <input type="hidden" name='widget-id[]' value="<?php echo $sidebar_widget_id; ?>" />
 158         <?php   endforeach; ?>
 159                                                 </div>
 160                                         </div>
 161                                 </li>
 162                         </ul>
 163                 </form>
 164                 </div>
 165         <?php
 166
 167                 require_once( 'admin-footer.php' );
 168                 exit;
 169         }
 170         wp_redirect( remove_query_arg( $query_args ) );
 171         exit;
 172 } elseif ( isset($_GET['remove']) && $_GET['remove'] && isset($_GET['key']) && is_numeric($_GET['key']) ) {
 173         // Remove from sidebar the widget of type $_GET['remove'] and in position $_GET['key']
 174         $key = (int) $_GET['key'];
 175         if ( -1 < $key && ( $keys = array_keys($sidebars_widgets[$sidebar], $_GET['remove']) ) && in_array($key, $keys) ) {
 176                 check_admin_referer( "remove-widget_$_GET[remove]" );
 177                 unset($sidebars_widgets[$sidebar][$key]);
 178                 $sidebars_widgets[$sidebar] = array_values($sidebars_widgets[$sidebar]);
 179                 wp_set_sidebars_widgets( $sidebars_widgets );
 180         }
 181         wp_redirect( remove_query_arg( $query_args ) );
 182         exit;
 183 } elseif ( isset($_GET['edit']) && $_GET['edit'] && isset($_GET['key']) && is_numeric($_GET['key']) ) {
 184         // Edit widget of type $_GET['edit'] and position $_GET['key']
 185         $key = (int) $_GET['key'];
 186         if ( -1 < $key && ( $keys = array_keys($sidebars_widgets[$sidebar], $_GET['edit']) ) && in_array($key, $keys) )
 187                 $edit_widget = $key;
 188 }
 189
 190 // Total number of registered sidebars
 191 $sidebar_widget_count = count($sidebars_widgets[$sidebar]);
 192
 193 // This is sort of lame since "widget" won't be converted to "widgets" in the JS
 194 if ( 1 < $sidebars_count = count($wp_registered_sidebars) )
 195         $sidebar_info_text = __ngettext( 'You are using %1$s widget in the "%2$s" sidebar.', 'You are using %1$s widgets in the "%2$s" sidebar.', $sidebar_widget_count );
 196 else
 197         $sidebar_info_text = __ngettext( 'You are using %1$s widget in the sidebar.', 'You are using %1$s widgets in the sidebar.', $sidebar_widget_count );
 198
 199
 200 $sidebar_info_text = sprintf( wp_specialchars( $sidebar_info_text ), "<span id='widget-count'>$sidebar_widget_count</span>", $wp_registered_sidebars[$sidebar]['name'] );
 201
 202 $page = isset($_GET['apage']) ? abs( (int) $_GET['apage'] ) : 1;
 203
 204 /* TODO: Paginate widgets list
 205 $page_links = paginate_links( array(
 206         'base'    => add_query_arg( 'apage', '%#%' ),
 207         'format'  => '',
 208         'total'   => ceil(($total = 105 )/ 10),
 209         'current' => $page
 210 ));
 211 */
 212 $page_links = '&nbsp;';
 213
 214 // Unsanitized!
 215 $widget_search = isset($_GET['s']) ? $_GET['s'] : false;
 216
 217 // Not entirely sure what all should be here
 218 $show_values = array(
 219         ''       => $widget_search ? __( 'Show any widgets' ) : __( 'Show all widgets' ),
 220         'unused' => __( 'Show unused widgets' ),
 221         'used'   => __( 'Show used widgets' )
 222 );
 223
 224 $show = isset($_GET['show']) && isset($show_values[$_GET['show']]) ? attribute_escape( $_GET['show'] ) : false;
 225
 226 $messages = array(
 227         'updated' => __('Changes saved.')
 228 );
 229
 230 require_once( 'admin-header.php' ); ?>
 231
 232 <?php if ( isset($_GET['message']) && isset($messages[$_GET['message']]) ) : ?>
 233 <div id="message" class="updated fade"><p><?php echo $messages[$_GET['message']]; ?></p></div>
 234 <?php endif; ?>
 235
 236 <div class="wrap">
 237 <?php screen_icon(); ?>
 238 <h2><?php echo wp_specialchars( $title ); ?></h2>
 239
 240         <form id="widgets-filter" action="" method="get">
 241
 242         <div class="widget-liquid-left-holder">
 243         <div id="available-widgets-filter" class="widget-liquid-left">
 244                 <h3><label for="show"><?php _e('Available Widgets'); ?></label></h3>
 245                 <div class="nav">
 246                         <select name="show" id="show">
 247 <?php foreach ( $show_values as $show_value => $show_text ) : $show_value = attribute_escape( $show_value ); ?>
 248                                 <option value='<?php echo $show_value; ?>'<?php selected( $show_value, $show ); ?>><?php echo wp_specialchars( $show_text ); ?></option>
 249 <?php endforeach; ?>
 250                         </select>
 251                         <input type="submit" value="<?php _e('Show' ); ?>" class="button-secondary" />
 252                         <p class="pagenav">
 253                                 <?php echo $page_links; ?>
 254                         </p>
 255                 </div>
 256         </div>
 257         </div>
 258
 259         <div id="available-sidebars" class="widget-liquid-right">
 260                 <h3><label for="sidebar-selector"><?php _e('Current Widgets'); ?></label></h3>
 261
 262                 <div class="nav">
 263                         <select id="sidebar-selector" name="sidebar">
 264 <?php foreach ( $wp_registered_sidebars as $sidebar_id => $registered_sidebar ) : $sidebar_id = attribute_escape( $sidebar_id ); ?>
 265                                 <option value='<?php echo $sidebar_id; ?>'<?php selected( $sidebar_id, $sidebar ); ?>><?php echo wp_specialchars( $registered_sidebar['name'] ); ?></option>
 266 <?php endforeach; ?>
 267                         </select>
 268                         <input type="submit" value="<?php _e('Show' ); ?>" class="button-secondary" />
 269                 </div>
 270
 271         </div>
 272
 273         </form>
 274
 275         <div id="widget-content" class="widget-liquid-left-holder">
 276
 277                 <div id="available-widgets" class="widget-liquid-left">
 278
 279                         <?php wp_list_widgets( $show, $widget_search ); // This lists all the widgets for the query ( $show, $search ) ?>
 280
 281                         <div class="nav">
 282                                 <p class="pagenav">
 283                                         <?php echo $page_links; ?>
 284                                 </p>
 285                         </div>
 286                 </div>
 287         </div>
 288
 289         <form id="widget-controls" action="" method="post">
 290
 291         <div id="current-widgets-head" class="widget-liquid-right">
 292
 293                 <div id="sidebar-info">
 294                         <p><?php echo $sidebar_info_text; ?></p>
 295                         <p><?php _e( 'Add more from the Available Widgets section.' ); ?></p>
 296                 </div>
 297
 298         </div>
 299
 300         <div id="current-widgets" class="widget-liquid-right">
 301                 <div id="current-sidebar">
 302
 303                         <?php wp_list_widget_controls( $sidebar ); // Show the control forms for each of the widgets in this sidebar ?>
 304
 305                 </div>
 306
 307                 <p class="submit">
 308                         <input type="hidden" id='sidebar' name='sidebar' value="<?php echo $sidebar; ?>" />
 309                         <input type="hidden" id="generated-time" name="generated-time" value="<?php echo time() - 1199145600; // Jan 1, 2008 ?>" />
 310                         <input type="submit" name="save-widgets" class="button-primary" value="<?php _e( 'Save Changes' ); ?>" />
 311 <?php
 312                         wp_nonce_field( 'edit-sidebar_' . $sidebar );
 313 ?>
 314                 </p>
 315         </div>
 316
 317         </form>
 318         <br class="clear" />
 319
 320 </div>
 321
 322 <?php do_action( 'sidebar_admin_page' ); ?>
 323
 324 <?php require_once( 'admin-footer.php' ); ?>
 325
 326