wavesurfer.install

<?php

/**
 * Implements hook_requirements().
 */
function wavesurfer_requirements($phase) {
  $t = get_t();

  if ($phase != 'runtime') {
    return array();
  }
  $library = libraries_detect('wavesurfer');

  if ($library && !empty($library['installed'])) {
    $requirements['wavesurfer'] = array(
      'title' => $t('Wavesurfer Library'),
      'value' => $t('Installed @ v@version.', array('@version' => $library['version'])),
      'severity' => REQUIREMENT_OK,
    );
  }
  else {
    $requirements['wavesurfer'] = array(
      'title' => $t('Wavesurfer Library'),
      'value' => $t('The Wavesurfer module requires the Wavesurfer library.'),
      'description' => $t('The Libraries module reported the following error: !error_message<br />
Please check the installation instructions for Waveform.', array('!error_message' => filter_xss($library['error message']))
      ),
      'severity' => REQUIREMENT_ERROR,
    );
  }

  return $requirements;
}