Renders the batch processing page based on the current state of the batch.
function _batch_page() {
$batch =& batch_get();
if (!isset($_REQUEST['id'])) {
return FALSE;
}
// Retrieve the current state of the batch.
if (!$batch) {
$batch = batch_load($_REQUEST['id']);
if (!$batch) {
drupal_set_message(t('No active batch.'), 'error');
drupal_goto();
}
}
// Register database update for the end of processing.
drupal_register_shutdown_function('_batch_shutdown');
// Add batch-specific CSS.
foreach ($batch['sets'] as $batch_set) {
if (isset($batch_set['css'])) {
foreach ($batch_set['css'] as $css) {
drupal_add_css($css);
}
}
}
$op = isset($_REQUEST['op']) ? $_REQUEST['op'] : '';
$output = NULL;
switch ($op) {
case 'start':
$output = _batch_start();
break;
case 'do':
// JavaScript-based progress page callback.
_batch_do();
break;
case 'do_nojs':
// Non-JavaScript-based progress page.
$output = _batch_progress_page_nojs();
break;
case 'finished':
$output = _batch_finished();
break;
}
return $output;
}