diff -r 07239de796bb -r e756a8c72c3d cms/drupal/modules/block/block.admin.inc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cms/drupal/modules/block/block.admin.inc	Fri Sep 08 12:04:06 2017 +0200
@@ -0,0 +1,700 @@
+<?php
+
+/**
+ * @file
+ * Admin page callbacks for the block module.
+ */
+
+/**
+ * Menu callback for admin/structure/block/demo.
+ */
+function block_admin_demo($theme = NULL) {
+  drupal_add_css(drupal_get_path('module', 'block') . '/block.css');
+  return '';
+}
+
+/**
+ * Menu callback for admin/structure/block.
+ *
+ * @param $theme
+ *   The theme to display the administration page for. If not provided, defaults
+ *   to the currently used theme.
+ */
+function block_admin_display($theme = NULL) {
+  global $theme_key;
+
+  drupal_theme_initialize();
+
+  if (!isset($theme)) {
+    // If theme is not specifically set, rehash for the current theme.
+    $theme = $theme_key;
+  }
+
+  // Fetch and sort blocks.
+  $blocks = block_admin_display_prepare_blocks($theme);
+
+  return drupal_get_form('block_admin_display_form', $blocks, $theme);
+}
+
+/**
+ * Prepares a list of blocks for display on the blocks administration page.
+ *
+ * @param $theme
+ *   The machine-readable name of the theme whose blocks should be returned.
+ *
+ * @return
+ *   An array of blocks, as returned by _block_rehash(), sorted by region in
+ *   preparation for display on the blocks administration page.
+ *
+ * @see block_admin_display_form()
+ */
+function block_admin_display_prepare_blocks($theme) {
+  $blocks = _block_rehash($theme);
+  $compare_theme = &drupal_static('_block_compare:theme');
+  $compare_theme = $theme;
+  usort($blocks, '_block_compare');
+  return $blocks;
+}
+
+/**
+ * Form constructor for the main block administration form.
+ *
+ * @param $blocks
+ *   An array of blocks, as returned by block_admin_display_prepare_blocks().
+ * @param $theme
+ *   A string representing the name of the theme to edit blocks for.
+ * @param $block_regions
+ *   (optional) An array of regions in which the blocks will be allowed to be
+ *   placed. Defaults to all visible regions for the theme whose blocks are
+ *   being configured. In all cases, a dummy region for disabled blocks will
+ *   also be displayed.
+ *
+ * @return
+ *   An array representing the form definition.
+ *
+ * @ingroup forms
+ * @see block_admin_display_form_submit()
+ */
+function block_admin_display_form($form, &$form_state, $blocks, $theme, $block_regions = NULL) {
+
+  $form['#attached']['css'] = array(drupal_get_path('module', 'block') . '/block.css');
+
+  // Get a list of block regions if one was not provided.
+  if (!isset($block_regions)) {
+    $block_regions = system_region_list($theme, REGIONS_VISIBLE);
+  }
+
+  // Weights range from -delta to +delta, so delta should be at least half
+  // of the amount of blocks present. This makes sure all blocks in the same
+  // region get an unique weight.
+  $weight_delta = round(count($blocks) / 2);
+
+  // Build the form tree.
+  $form['edited_theme'] = array(
+    '#type' => 'value',
+    '#value' => $theme,
+  );
+  $form['block_regions'] = array(
+    '#type' => 'value',
+    // Add a last region for disabled blocks.
+    '#value' => $block_regions + array(BLOCK_REGION_NONE => BLOCK_REGION_NONE),
+  );
+  $form['blocks'] = array();
+  $form['#tree'] = TRUE;
+
+  foreach ($blocks as $i => $block) {
+    $key = $block['module'] . '_' . $block['delta'];
+    $form['blocks'][$key]['module'] = array(
+      '#type' => 'value',
+      '#value' => $block['module'],
+    );
+    $form['blocks'][$key]['delta'] = array(
+      '#type' => 'value',
+      '#value' => $block['delta'],
+    );
+    $form['blocks'][$key]['info'] = array(
+      '#markup' => check_plain($block['info']),
+    );
+    $form['blocks'][$key]['theme'] = array(
+      '#type' => 'hidden',
+      '#value' => $theme,
+    );
+    $form['blocks'][$key]['weight'] = array(
+      '#type' => 'weight',
+      '#default_value' => $block['weight'],
+      '#delta' => $weight_delta,
+      '#title_display' => 'invisible',
+      '#title' => t('Weight for @block block', array('@block' => $block['info'])),
+    );
+    $form['blocks'][$key]['region'] = array(
+      '#type' => 'select',
+      '#default_value' => $block['region'] != BLOCK_REGION_NONE ? $block['region'] : NULL,
+      '#empty_value' => BLOCK_REGION_NONE,
+      '#title_display' => 'invisible',
+      '#title' => t('Region for @block block', array('@block' => $block['info'])),
+      '#options' => $block_regions,
+    );
+    $form['blocks'][$key]['configure'] = array(
+      '#type' => 'link',
+      '#title' => t('configure'),
+      '#href' => 'admin/structure/block/manage/' . $block['module'] . '/' . $block['delta'] . '/configure',
+    );
+    if ($block['module'] == 'block') {
+      $form['blocks'][$key]['delete'] = array(
+        '#type' => 'link',
+        '#title' => t('delete'),
+        '#href' => 'admin/structure/block/manage/' . $block['module'] . '/' . $block['delta'] . '/delete',
+     );
+    }
+  }
+  // Do not allow disabling the main system content block when it is present.
+  if (isset($form['blocks']['system_main']['region'])) {
+    $form['blocks']['system_main']['region']['#required'] = TRUE;
+  }
+
+  $form['actions'] = array(
+    '#tree' => FALSE,
+    '#type' => 'actions',
+  );
+  $form['actions']['submit'] = array(
+    '#type' => 'submit',
+    '#value' => t('Save blocks'),
+  );
+
+  return $form;
+}
+
+/**
+ * Form submission handler for block_admin_display_form().
+ *
+ * @see block_admin_display_form()
+ */
+function block_admin_display_form_submit($form, &$form_state) {
+  $transaction = db_transaction();
+  try {
+    foreach ($form_state['values']['blocks'] as $block) {
+      $block['status'] = (int) ($block['region'] != BLOCK_REGION_NONE);
+      $block['region'] = $block['status'] ? $block['region'] : '';
+      db_update('block')
+        ->fields(array(
+          'status' => $block['status'],
+          'weight' => $block['weight'],
+          'region' => $block['region'],
+        ))
+        ->condition('module', $block['module'])
+        ->condition('delta', $block['delta'])
+        ->condition('theme', $block['theme'])
+        ->execute();
+    }
+  }
+  catch (Exception $e) {
+    $transaction->rollback();
+    watchdog_exception('block', $e);
+    throw $e;
+  }
+  drupal_set_message(t('The block settings have been updated.'));
+  cache_clear_all();
+}
+
+/**
+ * Sorts active blocks by region, then by weight; sorts inactive blocks by name.
+ *
+ * Callback for usort() in block_admin_display_prepare_blocks().
+ */
+function _block_compare($a, $b) {
+  global $theme_key;
+
+  // Theme should be set before calling this function, or the current theme
+  // is being used.
+  $theme = &drupal_static(__FUNCTION__ . ':theme');
+  if (!isset($theme)) {
+    $theme = $theme_key;
+  }
+
+  $regions = &drupal_static(__FUNCTION__ . ':regions');
+  // We need the region list to correctly order by region.
+  if (!isset($regions)) {
+    $regions = array_flip(array_keys(system_region_list($theme)));
+    $regions[BLOCK_REGION_NONE] = count($regions);
+  }
+
+  // Separate enabled from disabled.
+  $status = $b['status'] - $a['status'];
+  if ($status) {
+    return $status;
+  }
+  // Sort by region (in the order defined by theme .info file).
+  if ((!empty($a['region']) && !empty($b['region'])) && ($place = ($regions[$a['region']] - $regions[$b['region']]))) {
+    return $place;
+  }
+  // Sort by weight, unless disabled.
+  if ($a['region'] != BLOCK_REGION_NONE) {
+    $weight = $a['weight'] - $b['weight'];
+    if ($weight) {
+      return $weight;
+    }
+  }
+  // Sort by title.
+  return strcmp($a['info'], $b['info']);
+}
+
+/**
+ * Form constructor for the block configuration form.
+ *
+ * Also used by block_add_block_form() for adding a new custom block.
+ *
+ * @param $module
+ *   Name of the module that implements the block to be configured.
+ * @param $delta
+ *   Unique ID of the block within the context of $module.
+ *
+ * @see block_admin_configure_validate()
+ * @see block_admin_configure_submit()
+ * @ingroup forms
+ */
+function block_admin_configure($form, &$form_state, $module, $delta) {
+  $block = block_load($module, $delta);
+  $form['module'] = array(
+    '#type' => 'value',
+    '#value' => $block->module,
+  );
+  $form['delta'] = array(
+    '#type' => 'value',
+    '#value' => $block->delta,
+  );
+
+  // Get the block subject for the page title.
+  $info = module_invoke($block->module, 'block_info');
+  if (isset($info[$block->delta])) {
+    drupal_set_title(t("'%name' block", array('%name' => $info[$block->delta]['info'])), PASS_THROUGH);
+  }
+
+  $form['settings']['title'] = array(
+    '#type' => 'textfield',
+    '#title' => t('Block title'),
+    '#maxlength' => 255,
+    '#description' => $block->module == 'block' ? t('The title of the block as shown to the user.') : t('Override the default title for the block. Use <em>!placeholder</em> to display no title, or leave blank to use the default block title.', array('!placeholder' => '&lt;none&gt;')),
+    '#default_value' => isset($block->title) ? $block->title : '',
+    '#weight' => -19,
+  );
+
+  // Module-specific block configuration.
+  if ($settings = module_invoke($block->module, 'block_configure', $block->delta)) {
+    foreach ($settings as $k => $v) {
+      $form['settings'][$k] = $v;
+    }
+  }
+
+  // Region settings.
+  $form['regions'] = array(
+    '#type' => 'fieldset',
+    '#title' => t('Region settings'),
+    '#collapsible' => FALSE,
+    '#description' => t('Specify in which themes and regions this block is displayed.'),
+    '#tree' => TRUE,
+  );
+
+  $theme_default = variable_get('theme_default', 'bartik');
+  $admin_theme = variable_get('admin_theme');
+  foreach (list_themes() as $key => $theme) {
+    // Only display enabled themes
+    if ($theme->status) {
+      $region = db_query("SELECT region FROM {block} WHERE module = :module AND delta = :delta AND theme = :theme", array(
+        ':module' => $block->module,
+        ':delta' => $block->delta,
+        ':theme' => $key,
+      ))->fetchField();
+
+      // Use a meaningful title for the main site theme and administrative
+      // theme.
+      $theme_title = $theme->info['name'];
+      if ($key == $theme_default) {
+        $theme_title = t('!theme (default theme)', array('!theme' => $theme_title));
+      }
+      elseif ($admin_theme && $key == $admin_theme) {
+        $theme_title = t('!theme (administration theme)', array('!theme' => $theme_title));
+      }
+      $form['regions'][$key] = array(
+        '#type' => 'select',
+        '#title' => $theme_title,
+        '#default_value' => !empty($region) && $region != -1 ? $region : NULL,
+        '#empty_value' => BLOCK_REGION_NONE,
+        '#options' => system_region_list($key, REGIONS_VISIBLE),
+        '#weight' => ($key == $theme_default ? 9 : 10),
+      );
+    }
+  }
+
+  // Visibility settings.
+  $form['visibility_title'] = array(
+    '#type' => 'item',
+    '#title' => t('Visibility settings'),
+  );
+  $form['visibility'] = array(
+    '#type' => 'vertical_tabs',
+    '#attached' => array(
+      'js' => array(drupal_get_path('module', 'block') . '/block.js'),
+    ),
+  );
+
+  // Per-path visibility.
+  $form['visibility']['path'] = array(
+    '#type' => 'fieldset',
+    '#title' => t('Pages'),
+    '#collapsible' => TRUE,
+    '#collapsed' => TRUE,
+    '#group' => 'visibility',
+    '#weight' => 0,
+  );
+
+  $access = user_access('use PHP for settings');
+  if (isset($block->visibility) && $block->visibility == BLOCK_VISIBILITY_PHP && !$access) {
+    $form['visibility']['path']['visibility'] = array(
+      '#type' => 'value',
+      '#value' => BLOCK_VISIBILITY_PHP,
+    );
+    $form['visibility']['path']['pages'] = array(
+      '#type' => 'value',
+      '#value' => isset($block->pages) ? $block->pages : '',
+    );
+  }
+  else {
+    $options = array(
+      BLOCK_VISIBILITY_NOTLISTED => t('All pages except those listed'),
+      BLOCK_VISIBILITY_LISTED => t('Only the listed pages'),
+    );
+    $description = t("Specify pages by using their paths. Enter one path per line. The '*' character is a wildcard. Example paths are %blog for the blog page and %blog-wildcard for every personal blog. %front is the front page.", array('%blog' => 'blog', '%blog-wildcard' => 'blog/*', '%front' => '<front>'));
+
+    if (module_exists('php') && $access) {
+      $options += array(BLOCK_VISIBILITY_PHP => t('Pages on which this PHP code returns <code>TRUE</code> (experts only)'));
+      $title = t('Pages or PHP code');
+      $description .= ' ' . t('If the PHP option is chosen, enter PHP code between %php. Note that executing incorrect PHP code can break your Drupal site.', array('%php' => '<?php ?>'));
+    }
+    else {
+      $title = t('Pages');
+    }
+    $form['visibility']['path']['visibility'] = array(
+      '#type' => 'radios',
+      '#title' => t('Show block on specific pages'),
+      '#options' => $options,
+      '#default_value' => isset($block->visibility) ? $block->visibility : BLOCK_VISIBILITY_NOTLISTED,
+    );
+    $form['visibility']['path']['pages'] = array(
+      '#type' => 'textarea',
+      '#title' => '<span class="element-invisible">' . $title . '</span>',
+      '#default_value' => isset($block->pages) ? $block->pages : '',
+      '#description' => $description,
+    );
+  }
+
+  // Per-role visibility.
+  $default_role_options = db_query("SELECT rid FROM {block_role} WHERE module = :module AND delta = :delta", array(
+    ':module' => $block->module,
+    ':delta' => $block->delta,
+  ))->fetchCol();
+  $role_options = array_map('check_plain', user_roles());
+  $form['visibility']['role'] = array(
+    '#type' => 'fieldset',
+    '#title' => t('Roles'),
+    '#collapsible' => TRUE,
+    '#collapsed' => TRUE,
+    '#group' => 'visibility',
+    '#weight' => 10,
+  );
+  $form['visibility']['role']['roles'] = array(
+    '#type' => 'checkboxes',
+    '#title' => t('Show block for specific roles'),
+    '#default_value' => $default_role_options,
+    '#options' => $role_options,
+    '#description' => t('Show this block only for the selected role(s). If you select no roles, the block will be visible to all users.'),
+  );
+
+  // Per-user visibility.
+  $form['visibility']['user'] = array(
+    '#type' => 'fieldset',
+    '#title' => t('Users'),
+    '#collapsible' => TRUE,
+    '#collapsed' => TRUE,
+    '#group' => 'visibility',
+    '#weight' => 20,
+  );
+  $form['visibility']['user']['custom'] = array(
+    '#type' => 'radios',
+    '#title' => t('Customizable per user'),
+    '#options' => array(
+      BLOCK_CUSTOM_FIXED => t('Not customizable'),
+      BLOCK_CUSTOM_ENABLED => t('Customizable, visible by default'),
+      BLOCK_CUSTOM_DISABLED => t('Customizable, hidden by default'),
+    ),
+    '#description' => t('Allow individual users to customize the visibility of this block in their account settings.'),
+    '#default_value' => isset($block->custom) ? $block->custom : BLOCK_CUSTOM_FIXED,
+  );
+
+  $form['actions'] = array('#type' => 'actions');
+  $form['actions']['submit'] = array(
+    '#type' => 'submit',
+    '#value' => t('Save block'),
+  );
+
+  return $form;
+}
+
+/**
+ * Form validation handler for block_admin_configure().
+ *
+ * @see block_admin_configure()
+ * @see block_admin_configure_submit()
+ */
+function block_admin_configure_validate($form, &$form_state) {
+  if ($form_state['values']['module'] == 'block') {
+    $custom_block_exists = (bool) db_query_range('SELECT 1 FROM {block_custom} WHERE bid <> :bid AND info = :info', 0, 1, array(
+      ':bid' => $form_state['values']['delta'],
+      ':info' => $form_state['values']['info'],
+    ))->fetchField();
+    if (empty($form_state['values']['info']) || $custom_block_exists) {
+      form_set_error('info', t('Ensure that each block description is unique.'));
+    }
+  }
+}
+
+/**
+ * Form submission handler for block_admin_configure().
+ *
+ * @see block_admin_configure()
+ * @see block_admin_configure_validate()
+ */
+function block_admin_configure_submit($form, &$form_state) {
+  if (!form_get_errors()) {
+    $transaction = db_transaction();
+    try {
+      db_update('block')
+        ->fields(array(
+          'visibility' => (int) $form_state['values']['visibility'],
+          'pages' => trim($form_state['values']['pages']),
+          'custom' => (int) $form_state['values']['custom'],
+          'title' => $form_state['values']['title'],
+        ))
+        ->condition('module', $form_state['values']['module'])
+        ->condition('delta', $form_state['values']['delta'])
+        ->execute();
+
+      db_delete('block_role')
+        ->condition('module', $form_state['values']['module'])
+        ->condition('delta', $form_state['values']['delta'])
+        ->execute();
+      $query = db_insert('block_role')->fields(array('rid', 'module', 'delta'));
+      foreach (array_filter($form_state['values']['roles']) as $rid) {
+        $query->values(array(
+          'rid' => $rid,
+          'module' => $form_state['values']['module'],
+          'delta' => $form_state['values']['delta'],
+        ));
+      }
+      $query->execute();
+
+      // Store regions per theme for this block
+      foreach ($form_state['values']['regions'] as $theme => $region) {
+        db_merge('block')
+          ->key(array('theme' => $theme, 'delta' => $form_state['values']['delta'], 'module' => $form_state['values']['module']))
+          ->fields(array(
+            'region' => ($region == BLOCK_REGION_NONE ? '' : $region),
+            'pages' => trim($form_state['values']['pages']),
+            'status' => (int) ($region != BLOCK_REGION_NONE),
+          ))
+          ->execute();
+      }
+
+      module_invoke($form_state['values']['module'], 'block_save', $form_state['values']['delta'], $form_state['values']);
+    }
+    catch (Exception $e) {
+      $transaction->rollback();
+      watchdog_exception('block', $e);
+      throw $e;
+    }
+    drupal_set_message(t('The block configuration has been saved.'));
+    cache_clear_all();
+    $form_state['redirect'] = 'admin/structure/block';
+  }
+}
+
+/**
+ * Form constructor for the add block form.
+ *
+ * @see block_add_block_form_validate()
+ * @see block_add_block_form_submit()
+ * @ingroup forms
+ */
+function block_add_block_form($form, &$form_state) {
+  return block_admin_configure($form, $form_state, 'block', NULL);
+}
+
+/**
+ * Form validation handler for block_add_block_form().
+ *
+ * @see block_add_block_form()
+ * @see block_add_block_form_submit()
+ */
+function block_add_block_form_validate($form, &$form_state) {
+  $custom_block_exists = (bool) db_query_range('SELECT 1 FROM {block_custom} WHERE info = :info', 0, 1, array(':info' => $form_state['values']['info']))->fetchField();
+
+  if (empty($form_state['values']['info']) || $custom_block_exists) {
+    form_set_error('info', t('Ensure that each block description is unique.'));
+  }
+}
+
+/**
+ * Form submission handler for block_add_block_form().
+ *
+ * Saves the new custom block.
+ *
+ * @see block_add_block_form()
+ * @see block_add_block_form_validate()
+ */
+function block_add_block_form_submit($form, &$form_state) {
+  $delta = db_insert('block_custom')
+    ->fields(array(
+      'body' => $form_state['values']['body']['value'],
+      'info' => $form_state['values']['info'],
+      'format' => $form_state['values']['body']['format'],
+    ))
+    ->execute();
+  // Store block delta to allow other modules to work with new block.
+  $form_state['values']['delta'] = $delta;
+
+  $query = db_insert('block')->fields(array('visibility', 'pages', 'custom', 'title', 'module', 'theme', 'status', 'weight', 'delta', 'cache'));
+  foreach (list_themes() as $key => $theme) {
+    if ($theme->status) {
+      $query->values(array(
+        'visibility' => (int) $form_state['values']['visibility'],
+        'pages' => trim($form_state['values']['pages']),
+        'custom' => (int) $form_state['values']['custom'],
+        'title' => $form_state['values']['title'],
+        'module' => $form_state['values']['module'],
+        'theme' => $theme->name,
+        'status' => 0,
+        'weight' => 0,
+        'delta' => $delta,
+        'cache' => DRUPAL_NO_CACHE,
+      ));
+    }
+  }
+  $query->execute();
+
+  $query = db_insert('block_role')->fields(array('rid', 'module', 'delta'));
+  foreach (array_filter($form_state['values']['roles']) as $rid) {
+    $query->values(array(
+      'rid' => $rid,
+      'module' => $form_state['values']['module'],
+      'delta' => $delta,
+    ));
+  }
+  $query->execute();
+
+  // Store regions per theme for this block
+  foreach ($form_state['values']['regions'] as $theme => $region) {
+    db_merge('block')
+      ->key(array('theme' => $theme, 'delta' => $delta, 'module' => $form_state['values']['module']))
+      ->fields(array(
+        'region' => ($region == BLOCK_REGION_NONE ? '' : $region),
+        'pages' => trim($form_state['values']['pages']),
+        'status' => (int) ($region != BLOCK_REGION_NONE),
+      ))
+      ->execute();
+  }
+
+  drupal_set_message(t('The block has been created.'));
+  cache_clear_all();
+  $form_state['redirect'] = 'admin/structure/block';
+}
+
+/**
+ * Form constructor for the custom block deletion form.
+ *
+ * @param $module
+ *   The name of the module that implements the block to be deleted. This should
+ *   always equal 'block' since it only allows custom blocks to be deleted.
+ * @param $delta
+ *   The unique ID of the block within the context of $module.
+ *
+ * @see block_custom_block_delete_submit()
+ */
+function block_custom_block_delete($form, &$form_state, $module, $delta) {
+  $block = block_load($module, $delta);
+  $custom_block = block_custom_block_get($block->delta);
+  $form['info'] = array('#type' => 'hidden', '#value' => $custom_block['info'] ? $custom_block['info'] : $custom_block['title']);
+  $form['bid'] = array('#type' => 'hidden', '#value' => $block->delta);
+
+  return confirm_form($form, t('Are you sure you want to delete the block %name?', array('%name' => $custom_block['info'])), 'admin/structure/block', '', t('Delete'), t('Cancel'));
+}
+
+/**
+ * Form submission handler for block_custom_block_delete().
+ *
+ * @see block_custom_block_delete()
+ */
+function block_custom_block_delete_submit($form, &$form_state) {
+  db_delete('block_custom')
+    ->condition('bid', $form_state['values']['bid'])
+    ->execute();
+  db_delete('block')
+    ->condition('module', 'block')
+    ->condition('delta', $form_state['values']['bid'])
+    ->execute();
+  db_delete('block_role')
+    ->condition('module', 'block')
+    ->condition('delta', $form_state['values']['bid'])
+    ->execute();
+  drupal_set_message(t('The block %name has been removed.', array('%name' => $form_state['values']['info'])));
+  cache_clear_all();
+  $form_state['redirect'] = 'admin/structure/block';
+  return;
+}
+
+/**
+ * Processes variables for block-admin-display-form.tpl.php.
+ *
+ * The $variables array contains the following arguments:
+ * - $form
+ *
+ * @see block-admin-display.tpl.php
+ * @see theme_block_admin_display()
+ */
+function template_preprocess_block_admin_display_form(&$variables) {
+  $variables['block_regions'] = $variables['form']['block_regions']['#value'];
+  if (isset($variables['block_regions'][BLOCK_REGION_NONE])) {
+    $variables['block_regions'][BLOCK_REGION_NONE] = t('Disabled');
+  }
+
+  foreach ($variables['block_regions'] as $key => $value) {
+    // Initialize an empty array for the region.
+    $variables['block_listing'][$key] = array();
+  }
+
+  // Initialize disabled blocks array.
+  $variables['block_listing'][BLOCK_REGION_NONE] = array();
+
+  // Add each block in the form to the appropriate place in the block listing.
+  foreach (element_children($variables['form']['blocks']) as $i) {
+    $block = &$variables['form']['blocks'][$i];
+
+    // Fetch the region for the current block.
+    $region = (isset($block['region']['#default_value']) ? $block['region']['#default_value'] : BLOCK_REGION_NONE);
+
+    // Set special classes needed for table drag and drop.
+    $block['region']['#attributes']['class'] = array('block-region-select', 'block-region-' . $region);
+    $block['weight']['#attributes']['class'] = array('block-weight', 'block-weight-' . $region);
+
+    $variables['block_listing'][$region][$i] = new stdClass();
+    $variables['block_listing'][$region][$i]->row_class = !empty($block['#attributes']['class']) ? implode(' ', $block['#attributes']['class']) : '';
+    $variables['block_listing'][$region][$i]->block_modified = !empty($block['#attributes']['class']) && in_array('block-modified', $block['#attributes']['class']);
+    $variables['block_listing'][$region][$i]->block_title = drupal_render($block['info']);
+    $variables['block_listing'][$region][$i]->region_select = drupal_render($block['region']) . drupal_render($block['theme']);
+    $variables['block_listing'][$region][$i]->weight_select = drupal_render($block['weight']);
+    $variables['block_listing'][$region][$i]->configure_link = drupal_render($block['configure']);
+    $variables['block_listing'][$region][$i]->delete_link = !empty($block['delete']) ? drupal_render($block['delete']) : '';
+    $variables['block_listing'][$region][$i]->printed = FALSE;
+  }
+
+  $variables['form_submit'] = drupal_render_children($variables['form']);
+}
+