function media_gallery_block_view in Media Gallery 7.2

Same name and namespace in other branches

1. 7 media_gallery.module \media_gallery_block_view()

Implements hook_block_view().

File

./media_gallery.module, line 626

Code

function media_gallery_block_view($delta = '') {
  $node = node_load($delta);
  if (empty($node->media_gallery_expose_block[LANGUAGE_NONE][0]['value'])) {

    // Bail out now if the node doesn't exist or if it is configured not to
    // display a block.
    $block['subject'] = NULL;
    $block['content'] = '';
    return $block;
  }

  // Collect an array of file IDs associated with this gallery. For
  // simplicity we will assume (here and below) that this is not a
  // multilingual field. Also note that the node may have been loaded and
  // viewed elsewhere on the page, in which case the 'media_gallery_file'
  // field was modified and does not contain what we want, so we have to go
  // back to the original field value set in hook_node_load() instead, and
  // also clone the node before changing it so our modifications do not
  // affect other places where it might be being viewed.
  $node = clone $node;
  $node->media_gallery_file = $node->media_gallery_file_original;
  $files =& $node->media_gallery_file[LANGUAGE_NONE];
  $files = media_gallery_filter_media_access($files, 'view');
  if (empty($files)) {

    // Bail out now if there won't be any media items to show.
    $block['subject'] = check_plain($node->title);
    $block['content'] = t('No content available.');
    return $block;
  }
  $gallery_fids = array();
  foreach ($files as $file) {
    $gallery_fids[] = _media_gallery_get_media_fid($file);
  }

  // Construct a list of file IDs that is limited to the specified number of
  // items and ordered by most recent; these are the files that will be
  // displayed in the block.
  $columns = !empty($node->media_gallery_block_columns[LANGUAGE_NONE][0]['value']) ? $node->media_gallery_block_columns[LANGUAGE_NONE][0]['value'] : 1;
  $rows = !empty($node->media_gallery_block_rows[LANGUAGE_NONE][0]['value']) ? $node->media_gallery_block_rows[LANGUAGE_NONE][0]['value'] : 1;
  $number_to_show = $columns * $rows;
  $block_fids = db_select('file_managed', 'f')
    ->fields('f', array(
    'fid',
  ))
    ->condition('fid', $gallery_fids, 'IN')
    ->orderBy('timestamp', 'DESC')
    ->range(0, $number_to_show)
    ->execute()
    ->fetchCol();

  // Before sorting, remove any items that will not display in the block.
  $fid_order = array_flip($block_fids);
  if ($number_to_show < count($files)) {
    foreach ($files as $key => $file) {
      if (!isset($fid_order[_media_gallery_get_media_fid($file)])) {
        unset($files[$key]);
      }
    }
  }

  // Prepare the sorting function with the list of file ID orders.
  _media_gallery_sort_by_recent(NULL, NULL, $fid_order);

  // Perform the sort.
  usort($files, '_media_gallery_sort_by_recent');

  // Display the block.
  $block['subject'] = check_plain($node->title);
  $block['content']['gallery'] = node_view($node, 'media_gallery_block');

  // Move the node's contextual links so that they display on the block
  // rather than the node (i.e., in the same dropdown as the "Configure
  // block" link). This is also required in order to properly integrate with
  // the code in media_gallery_contextual_links_view_alter().
  if (isset($block['content']['gallery']['#contextual_links'])) {
    $block['content']['#contextual_links'] = $block['content']['gallery']['#contextual_links'];
    unset($block['content']['gallery']['#contextual_links']);
  }
  $block['content']['more_link'] = array(
    '#theme' => 'more_link',
    '#url' => 'node/' . $node->nid,
    '#title' => t('Show the complete gallery'),
    '#weight' => 1000,
  );
  return $block;
}