Club Drupal

if (module_exists('block')) {

  module_load_include('inc', 'addthis', 'includes/addthis.block');

}

/**

 * Create a addthis settings form.

 */

function _addthis_settings_form($form = array(), &$form_state, $display_type = NULL, $display_settings = NULL) {

  // Toggle variables

  $no_js = FALSE;

  // Default display type if not set in the parameters.

  $display_type = (isset($display_type)) ? $display_type : 'addthis_disabled';

  // Load setting type from the form_state.

  if (isset($form_state['values']['addthis_settings']['type'])) {

    $display_type = $form_state['values']['addthis_settings']['type'];

  }

  // Container used as the replace for ajax.

  $form['#type'] = 'container';

  $form['#attributes'] = array();

  $form['#id'] = 'addthis_settings';

  // The list of formatters.

  $formatter_options = AddThis::getInstance()->getDisplayTypes();

  $form['type'] = array(

    '#type' => 'select',

    '#title' => t('Formatter for @title', array('@title' => 'AddThis block')),

    '#title_display' => 'invisible',

    '#options' => $formatter_options,

    '#default_value' => $display_type,

    '#parents' => array('addthis_settings', 'type'),

    '#attributes' => array('class' => array('addthis-display-type')),

    '#ajax' => array(

      'callback' => '_addthis_settings_form_submit_callback',

      'wrapper' => 'addthis_settings',

      'name' => 'switch_display',

      'event' => 'change',

    )

  );

  if ($no_js) {

    $form['choose'] = array(

      '#type' => 'submit',

      '#name' => 'Switch display',

      '#value' => 'Switch display',

      '#op' => 'switch_display',

      '#id' => 'switch-display',

      '#submit' => array('_addthis_settings_form_submit'),

    );

  }

  // Formatter settings.

  // Check the currently selected formatter, and merge persisted values for

  // formatter settings.

  $formatter_type = $display_type;

  // Get the settings if set.

  $settings = $display_settings;

  $formatter_settings = field_info_formatter_settings($formatter_type);

  $settings += $formatter_settings;

  $field = array();

  $instance = array();

  $view_mode = 'block';

  $instance['display'][$view_mode]['type'] = $formatter_type;

  $formatter = field_info_formatter_types($formatter_type);

  $instance['display'][$view_mode]['module'] = $formatter['module'];

  $instance['display'][$view_mode]['settings'] = $settings;

  $settings_form = array();

  $function = $formatter['module'] . '_field_formatter_settings_form';

  if (function_exists($function)) {

    $settings_form = $function($field, $instance, $view_mode, $form, $form_state);

    $settings_form['#tree'] = TRUE;

    $settings_form['#parents'] = array('addthis_settings', 'settings');

  }

  $form['settings'] = $settings_form;

  return $form;

}

function _addthis_settings_form_submit($form, &$form_state) {

  $form_state['rebuild'] = TRUE;

}

function _addthis_settings_form_submit_callback($form, &$form_state) {

  $form_state['rebuild'] = TRUE;

  return $form['addthis_settings']['form'];

}