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 * If no time elements are included in the format string, only the date

 * textfield will be created. If no date elements are included in the format

 * string, only the time textfield, will be created.

 */

/**

/**

 * Get the location of the Willington Vega timepicker library.

 *

 *   The location of the library, or FALSE if the library isn't installed.

 */

function date_popup_get_wvega_path() {

}

/**

 * function and settings, but using classes requires a DOM traversal

 * and is much slower than an id lookup.  The new approach returns to

 * requiring a duplicate copy of the settings/code for every element

 * putting the ids for each unique function/settings combo into

 * Drupal.settings and searching for each listed id.

 *

 *   The CSS class prefix to search the DOM for.

 *   TODO : unused ?

 *   The settings array to pass to the jQuery function.

 * @returns

 */

function date_popup_js_settings_id($id, $func, $settings) {

  static $js_added = FALSE;

  // Make sure popup date selector grid is in correct year.

  if (!empty($settings['yearRange'])) {

    $parts = explode(':', $settings['yearRange']);

  }

  if (!$js_added) {

    $js_added = TRUE;

  }

    $id_count[$id] = 0;

  }

  $js_settings['datePopup'][$return_id] = array(

    'func' => $func,

  );

  drupal_add_js($js_settings, 'setting');

  return $return_id;

}

function date_popup_theme() {

  return array(

}

/**

 * Implements hook_element_info().

 *

 * Set the #type to date_popup and fill the element #default_value with

 *

 * The element will create two textfields, one for the date and one for the

 * time. The date textfield will include a jQuery popup calendar date picker,

  return $type;

}

function date_popup_date_granularity($element) {

  $granularity = date_format_order($element['#date_format']);

  return array_intersect($granularity, array('month', 'day', 'year'));

}

function date_popup_time_granularity($element) {

  $granularity = date_format_order($element['#date_format']);

  return array_intersect($granularity, array('hour', 'minute', 'second'));

}

function date_popup_date_format($element) {

  return (date_limit_format($element['#date_format'], date_popup_date_granularity($element)));

}

function date_popup_time_format($element) {

  return date_popup_format_to_popup_time(date_limit_format($element['#date_format'], date_popup_time_granularity($element)), $element['#timepicker']);

}

/**

 * Element value callback for date_popup element.

 */

function date_popup_element_value_callback($element, $input = FALSE, &$form_state) {

  $granularity = date_format_order($element['#date_format']);

  $has_time = date_has_time($granularity);

  return $return;

}

/**

 * Javascript popup element processing.

 * Add popup attributes to $element.

 */

function date_popup_element_process($element, &$form_state, $form) {

  if (!empty($element['#ajax'])) {

    $element['#ajax'] += array(

      'event' => 'change',

    );

  }

  $element['date'] = date_popup_process_date_part($element);

  $element['time'] = date_popup_process_time_part($element);

  if (isset($element['#element_validate'])) {

    array_push($element['#element_validate'], 'date_popup_validate');

  }

  }

  $context = array(

  );

  drupal_alter('date_popup_process', $element, $form_state, $context);

function date_popup_process_date_part(&$element) {

  $granularity = date_format_order($element['#date_format']);

  $date_granularity = date_popup_date_granularity($element);

  // The datepicker can't handle zero or negative values like 0:+1

  // even though the Date API can handle them, so rework the value

  // we pass to the datepicker to use defaults it can accept (such as +0:+1)

  // date_range_string() adds the necessary +/- signs to the range string.

  $this_year = date_format(date_now(), 'Y');

  $date = '';

  if (!empty($element['#value']['date'])) {

    $date = new DateObject($element['#value']['date'], $element['#date_timezone'], date_popup_date_format($element));

    'closeAtTop' => FALSE,

    'speed' => 'immediate',

    'firstDay' => intval(variable_get('date_first_day', 0)),

    'dateFormat' => date_popup_format_to_popup(date_popup_date_format($element), 'datepicker'),

    'yearRange' => $year_range,

    // Custom setting, will be expanded in Drupal.behaviors.date_popup()

  // Create a unique id for each set of custom settings.

  $id = date_popup_js_settings_id($element['#id'], 'datepicker', $settings);

  $parents = array_merge($element['#parents'], array('date'));

  $sub_element = array(

    '#type' => 'textfield',

    '#title' => theme('date_part_label_date', array('part_type' => 'date', 'element' => $element)),

    '#title_display' => $element['#date_label_position'] == 'above' ? 'before' : 'invisible',

    '#id' => $id,

    '#input' => FALSE,

    '#size' => !empty($element['#size']) ? $element['#size'] : 20,

    '#maxlength' => !empty($element['#maxlength']) ? $element['#maxlength'] : 30,

    '#attributes' => $element['#attributes'],

    '#parents' => $parents,

    '#ajax' => !empty($element['#ajax']) ? $element['#ajax'] : FALSE,

  );

  $sub_element['#value'] = $sub_element['#default_value'];

  return $sub_element;

}

function date_popup_process_time_part(&$element) {

  $granularity = date_format_order($element['#date_format']);

  $has_time = date_has_time($granularity);

  switch ($element['#timepicker']) {

    case 'default':

      $settings = array(

        'show24Hours' => strpos($element['#date_format'], 'H') !== FALSE ? TRUE : FALSE,

        'showSeconds' => (in_array('second', $granularity) ? TRUE : FALSE),

        'spinnerImage' => '',

        'fromTo' => isset($fromto),

      if (strpos($element['#date_format'], 'a') !== FALSE) {

        // Then we are using lowercase am/pm.

        $settings['ampmNames'] = array('am', 'pm');

        $settings['ampmPrefix'] = ' ';

      }

      break;

    case 'wvega':

      $func = 'timepicker';

      $format = date_popup_format_to_popup_time(date_limit_format($element['#date_format'], $time_granularity), 'wvega');

      // The first value in the dropdown list should be the same as the element

      // default_value, but it needs to be in JS format (i.e. milliseconds since

        'scrollbar' => TRUE,

      );

      break;

    default:

      $func = '';

      $settings = array();

  // Create a unique id for each set of custom settings.

  $id = date_popup_js_settings_id($element['#id'], $func, $settings);

  $parents = array_merge($element['#parents'], array('time'));

  $sub_element = array(

    '#type' => 'textfield',

    '#maxlength' => 10,

    '#attributes' => $element['#attributes'],

    '#parents' => $parents,

    '#ajax' => !empty($element['#ajax']) ? $element['#ajax'] : FALSE,

  );

  $sub_element['#value'] = $sub_element['#default_value'];

  $example_date = date_now();

  date_increment_round($example_date, $element['#date_increment']);

  return ($sub_element);

}

 * When used as a Views widget, the validation step always gets triggered,

 * even with no form submission. Before form submission $element['#value']

 * contains a string, after submission it contains an array.

 */

function date_popup_validate($element, &$form_state) {

  $input_exists = NULL;

  $input = drupal_array_get_nested_value($form_state['values'], $element['#parents'], $input_exists);

  drupal_alter('date_popup_pre_validate', $element, $form_state, $input);

  $time_granularity = date_popup_time_granularity($element);

  $has_time = date_has_time($granularity);

  $date = date_popup_input_date($element, $input);

  // If the date has errors, display them.

/**

 * Helper function for extracting a date value out of user input.

 *

 *   Should we add a time value to complete the date if there is no time?

 *   Useful anytime the time value is optional.

 */

  $format = date_popup_date_format($element);

  $format .= $has_time ? ' ' . date_popup_time_format($element) : '';

  $date = new DateObject($datetime, $element['#date_timezone'], $format);

  if (is_object($date)) {

    $date->limitGranularity($granularity);

  return array(

    'H:i:s',

    'h:i:sA',

}

/**

 * TODO Remove any formats not supported by the widget, if any.

 */

function date_popup_formats() {

  $formats = drupal_map_assoc($formats);

  return $formats;

}

 * Recreate a date format string so it has the values popup expects.

 *

 * @param string $format

 * @return string

 *   A format string in popup format, like YMD-, for the

 *   earlier 'calendar' version, or m/d/Y for the later 'datepicker'

 * Recreate a time format string so it has the values popup expects.

 *

 * @param string $format

 * @return string

 */

function date_popup_format_to_popup_time($format, $timepicker = NULL) {

  if (empty($format)) {

    $format = 'H:i';

  }

  $format = strtr($format, date_popup_timepicker_format_replacements($timepicker));

  return $format;

}

 * Reconstruct popup format string into normal format string.

 *

 * @param string $format

 * @return string

 */

function date_popup_popup_to_format($format) {

  $replace = array_flip(date_popup_datepicker_format_replacements());

 * This function returns a map of format replacements required to change any

 * input format into one that the given timepicker can support.

 *

 *   The time entry plugin being used: either 'wvega' or 'default'.

 *   A map of replacements.

 */

function date_popup_timepicker_format_replacements($timepicker = 'default') {

  switch ($timepicker) {

    case 'wvega':

    default:

  }

}

 */

function date_popup_datepicker_format_replacements() {

  return array(

  );

}

  $element = $vars['element'];

  $attributes = !empty($element['#wrapper_attributes']) ? $element['#wrapper_attributes'] : array('class' => array());

  $attributes['class'][] = 'container-inline-date';

  $wrapper_attributes = array('class' => array('date-padding'));

  if (empty($element['date']['#description'])) {

    $wrapper_attributes['class'][] = 'clearfix';

  }

  if (isset($element['#children'])) {

  }

}

/**

    '#type' => 'select',

    '#options' => array(

      'default' => t('Use default jQuery timepicker'),

    ),

    '#title' => t('Timepicker'),

    '#default_value' => variable_get('date_popup_timepicker', $preferred_timepicker),

}

EOM;

  return system_settings_form($form);

}