os_base.module

<?php
/**
 * @file
 * OpenSourcery base feature and enhancements.
 */

include_once 'os_base.features.inc';

/**
 * Implements hook_admin_paths().
 */
function os_base_admin_paths() {
  return array(
    'node/*/add-sub-page' => TRUE,
  );
}

/**
 * Implements hook_menu_alter().
 *
 * Removes /node, as it might display the "Welcome to your new Drupal website!"
 * message, or a messy, unstyled node listing and denies non-administrators
 * access to field-collection view pages.
 */
function os_base_menu_alter(&$items) {
  unset($items['node']);

  // Turn off access to field-collection pages except for administrators.
  foreach (field_info_fields() as $field) {
    if ($field['type'] == 'field_collection') {
      $path = field_collection_field_get_path($field);
      $items[$path . '/%field_collection_item']['access callback'] = 'user_access';
      $items[$path . '/%field_collection_item']['access arguments'] = array('administer fieldgroups');
    }
  }
}

/**
 * Implements hook_form_alter().
 *
 * - Sets the revisions as enabled for new content types.
 */
function os_base_form_alter(&$form, $form_state, $form_id) {
  switch ($form_id) {
    case 'node_type_form':
      if (!isset($form['#node_type']->orig_type)) {
        $options = array();
        // Set to published by default.
        $options[] = 'status';
        // Enable revisions by default.
        $options[] = 'revision';
        $form['workflow']['node_options']['#default_value'] = $options;
      }
      break;
  }

  // Add a variable to display revision information on node edit.
  if (variable_get('os_base_force_node_revisioning', TRUE)) {
    if (isset($form['type']['#value']) && $form_id == $form['type']['#value'] . '_node_form' && isset($form['revision_information'])) {
      // Hide the revision log input.
      $form['revision_information']['#access'] = FALSE;
    }
  }
}

/**
 * Implements hook_date_format_types().
 */
function os_base_date_format_types() {
  return array(
    'day' => t('Day'),
    'time' => t('Time'),
  );
}

/**
 * Implements hook_date_formats().
 */
function os_base_date_formats() {
  $condensed = array(
    'day' => array(
      'j F Y',
      'l, M j',
      'l, j M',
      'n/j/Y',
      'F jS, Y',
    ),
    'time' => array(
      'g:ia',
      'H:i',
      'g:ia T',
    ),
  );

  // Allow day formats to be used for core-supplied formats.
  foreach (array('short', 'medium', 'long') as $format) {
    $condensed[$format] = $condensed['day'];
  }
  $formats = array();
  foreach ($condensed as $type => $f) {
    foreach ($f as $format) {
      $formats[] = array(
        'type' => $type,
        'format' => $format,
        'locales' => array(),
      );
    }
  }
  return $formats;
}

/**
 * Implements hook_image_styles_alter().
 *
 * Remove core's default 'medium', 'large' and 'thumbnail' styles if defined by
 * core. Note, the media module adds a square_thumbnail of 180x180.
 */
function os_base_image_styles_alter(&$styles) {
  if (variable_get('os_base_remove_core_image_styles', FALSE)) {
    foreach (array('medium', 'large', 'thumbnail') as $remove) {
      if (isset($styles[$remove]['module']) && $styles[$remove]['module'] == 'image' && isset($styles[$remove]['storage']) && $styles[$remove]['storage'] === IMAGE_STORAGE_DEFAULT) {
        unset($styles[$remove]);
      }
    }
  }
}

/**
 * Preprocess page variables.
 */
function os_base_preprocess_page(&$vars) {
  if (isset($vars['footer_message'])) {
    // Replace @year with current year.
    $vars['footer_message'] = str_replace('@year', date('Y'), $vars['footer_message']);
  }
}

/**
 * Preprocessor for theme('views_view').
 */
function os_base_preprocess_views_view(&$vars) {
  $view = $vars['view'];
  if ($view->base_table === 'node' && strpos($view->current_display, 'page') !== FALSE && empty($view->result) && empty($vars['empty'])) {
    $types = node_type_get_types();
    $output = array();
    foreach ($view->filter as $handler) {
      if ($handler->table === 'node' && $handler->field === 'type' && !empty($handler->options['value']) && $handler->options['operator'] === 'in') {
        foreach (array_filter($handler->options['value']) as $type) {
          $item = menu_get_item('node/add/' . strtr($type, array('_' => '-')));
          if ($item && $item['access']) {
            $output[] = t('Please <a href="!url">add your first @type</a> to get started.', array('@type' => $types[$type]->name, '!url' => url($item['path'])));
          }
        }
        break;
      }
    }
    $vars['empty'] = !empty($output) ? implode('<br />', $output) : t('There is currently no content to view in this section.');
  }
}

/**
 * Implements hook_user_default_permissions_alter().
 */
function os_base_user_default_permissions_alter(&$permissions) {
  // This is a workaround that allows us to export permissions for modules
  // without making them a hard dependency. This simply removes permissions
  // whose modules are not currently enabled.
  $modules_enabled = module_list();
  foreach ($permissions as $key => $perm) {
    if (empty($perm['module'])) {
      continue;
    }
    if (!isset($modules_enabled[$perm['module']])) {
      // Module isn't enabled; simply remove the permission.
      unset($permissions[$key]);
    }
  }
}