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<?php

/**

 * @file

 * Hooks provided by Views Bulk Operations.

 */

/**

 * Perform alterations on the VBO form before it is rendered.

 *

 * Usually, if a module wanted to alter the VBO form through hook_form_alter(),

 * it would need to duplicate the views form checks from

 * views_bulk_operations_form_alter(), while making sure that the hook

 * runs after VBO's hook (by increasing the weight of the altering module's

 * system entry). In order to reduce that complexity, VBO provides this hook.

 *

 * @param $form

 *  A step of the VBO form to be altered.

 * @param $form_state

 *  Form state. Contains the name of the current step in $form_state['step'].

 * @param $vbo

 *   The VBO views field. Contains a reference to the view in $vbo->view.

 */

function hook_views_bulk_operations_form_alter(&$form, &$form_state, $vbo) {

  if ($form_state['step'] == 'views_form_views_form') {

    // Alter the first step of the VBO form (the selection page).

    $form['select']['#title'] = t('Bulk operations');

  }

  elseif ($form_state['step'] == 'views_bulk_operations_config_form') {

    // Alter the configuration step of the VBO form.

  }

  elseif ($form_state['step'] == 'views_bulk_operations_confirm_form') {

    // Alter the confirmation step of the VBO form.

  }

}