unl.module

<?php

require_once dirname(__FILE__) . '/includes/common.php';

/**
 * Implementation of hook_entity_info_alter().
 */
function unl_entity_info_alter(&$entity_info) {
  // Add additional view_mode to admin/structure/types/manage/CONTENTTYPE/display for an abbriviated teaser (for use in sidebars, etc)
  $entity_info['node']['view modes']['abbr_teaser'] = array(
    'label' => t('Abbriviated teaser'),
    'custom settings' => TRUE,
  );
}

/**
 * Implementation of hook_html_head_alter().
 */
function unl_html_head_alter(&$head_elements) {
  // If <link rel="home"> has already been set elsewhere (in a Context for example) then return...
  foreach ($head_elements as $key => $element) {
    if ($element["#tag"] == 'link' && isset($element['#attributes']['rel']) && $element['#attributes']['rel'] == 'home') {
      return;
    }
  }

  // If we are in a drilled down menu, change the home link to the drilled down item.
  $current_menu_link = _unl_get_current_menu_link();
  if ($current_menu_link && $current_menu_link->depth > 1) {
    $home_path = drupal_get_path_alias($current_menu_link->link_path);
  }
  else {
    $home_path = '<front>';
  }

  // ...otherwise add a <link rel="home"> tag with the front page as the href attribute
  $element = array(
    '#tag' => 'link',
    '#attributes' => array(
      'rel' => 'home',
      'href' => url($home_path, array('absolute' => TRUE)),
    ),
    '#type' => 'html_tag'
  );
  $head_elements['drupal_add_html_head_link:home'] = $element;
}

/**
 * Implementation of hook_context_plugins(). (Context module)
 */
function unl_context_plugins() {
  $plugins = array();
  $plugins['unl_context_reaction_linkrelhome'] = array(
    'handler' => array(
      'path' => drupal_get_path('module', 'unl') .'/plugins',
      'file' => 'unl_context_reaction_linkrelhome.inc',
      'class' => 'unl_context_reaction_linkrelhome',
      'parent' => 'context_reaction',
    ),
  );
  $plugins['unl_context_reaction_blockremove'] = array(
    'handler' => array(
      'path' => drupal_get_path('module', 'unl') .'/plugins',
      'file' => 'unl_context_reaction_blockremove.inc',
      'class' => 'unl_context_reaction_blockremove',
      'parent' => 'context_reaction',
    ),
  );
  return $plugins;
}

/**
 * Implementation of hook_context_registry(). (Context module)
 */
function unl_context_registry() {
  return array(
    'reactions' => array(
      'linkrelhome' => array(
        'title' => t('link rel="home" tag'),
        'plugin' => 'unl_context_reaction_linkrelhome',
      ),
      'blockremove' => array(
        'title' => t('Block Remove'),
        'plugin' => 'unl_context_reaction_blockremove',
      ),
    ),
  );
}

/**
 * Implementation of hook_context_page_reaction(). (Context module)
 */
function unl_context_page_reaction() {
  if ($plugin = context_get_plugin('reaction', 'linkrelhome')) {
    $plugin->execute();
  }
}

/**
 * Implementation of hook_page_build().
 */
function unl_page_build(&$page) {
  if (module_exists('context')) {
    if ($plugin = context_get_plugin('reaction', 'blockremove')) {
      $plugin->execute($page);
    }
    // See block_page_build. Clear static cache b/c in overlay form submissions
    // hook_page_build can get called more than once per page load.
    drupal_static_reset('context_reaction_block_list');
  }
}

/**
 * Implementation of hook_field_attach_view_alter().
 */
function unl_field_attach_view_alter(&$output, $context) {
  // Replace the field named field_hrorgunit containing an org unit number with that unit's listing from the UNL directory
  foreach (element_children($output) as $field_name) {
    $element = &$output[$field_name];
    switch ($element['#field_name']) {
      case 'field_hrorgunit':
        $result = file_get_contents('http://directory.unl.edu/departments/?view=deptlistings&org_unit='.$element['#items'][0]['value'].'&format=partial');
        if (!empty($result) && $result != '<div id="all_employees"></div>') {
          drupal_add_css('http://directory.unl.edu/css/peoplefinder_default.css', 'external');
          drupal_add_js('http://directory.unl.edu/scripts/peoplefinder.js', 'external');
          drupal_add_js('var PF_URL = "http://directory.unl.edu/", ANNOTATE_URL = "http://annotate.unl.edu/";', 'inline');
          // Need to check to see if directory.unl.edu only returned a partial result. If so, result will have a message in between the closing ul and div tags like so: </ul><p>Try refining your search.</p></div></div>
          if (!preg_match('/<\/ul>\s*\n*\s*<\/div><\/div>/', $result)) {
            // Extra message at the bottom indicating not all results returned - hide it
            drupal_add_css('#all_employees > * > p {display:none;}', 'inline');
            // Alert the user to visit the directory site
            drupal_add_js('jQuery(document).ready(function(){jQuery("#all_employees .result_head").css("font-size","13px").html("We\'re a big department! Partial listing shown below, please visit <a href=\"http://directory.unl.edu/departments/'.$element['#items'][0]['value'].'#all_employees\">our department lisiting on the UNL Directory</a> to see everyone.");});', 'inline');
          }
        }
        else {
          $result = '<p>Please visit the <a href="http://directory.unl.edu/">UNL Directory</a> for listings.</p>';
        }
        foreach ($element['#items'] as $delta => $item) {
          $element[$delta]['#markup'] = $result;
        }
        break;
      default:
    }
  }
}

/**
 * Implementation of hook_node_access().
 */
function unl_node_access($node, $op, $account) {
  // When content types are created they have blank permissions so base access on the 'Basic page' type. This is done because with shared permissions subsites can't edit permissions.
  //@TODO Make this configureable i.e. make it possible to opt-out certain types from this.
  switch($op) {
    case 'view':
      break;
    case 'create':
      return user_access('create page content', $account) ? NODE_ACCESS_ALLOW : NODE_ACCESS_IGNORE;
    case 'update':
      if (isset($node->uid) && $node->uid == $account->uid) {
        return user_access('edit own page content', $account) ? NODE_ACCESS_ALLOW : NODE_ACCESS_IGNORE;
      }
      return user_access('edit any page content', $account) ? NODE_ACCESS_ALLOW : NODE_ACCESS_IGNORE;
    case 'delete':
      if (isset($node->uid) && $node->uid == $account->uid) {
        return user_access('delete own page content', $account) ? NODE_ACCESS_ALLOW : NODE_ACCESS_IGNORE;
      }
      return user_access('delete any page content', $account) ? NODE_ACCESS_ALLOW : NODE_ACCESS_IGNORE;
  }
}

function unl_node_prepare($node) {
  $node->menu['expanded'] = 1;
}

/**
 * Implementation of hook_wywiwyg_plugin() found in wysiwyg.api.php
 */
function unl_wysiwyg_plugin($editor) {
  switch ($editor) {
    case 'tinymce':
      return array(
        'unl' => array(
          // A URL to the plugin's homepage.
          'url' => 'http://gforge.unl.edu/gf/project/wdn_tinymce/',
           // The full path to the native editor plugin.
          'path' => $editor['library path'] . '/plugins/unl',
          // A list of editor extensions provided by this native plugin.
          // Extensions are not displayed as buttons and touch the editor's
          // internals, so you should know what you are doing.
          'extensions' => array(
            'unl' => 'UNL Extension'
          ),
          // Boolean whether this plugin is a native plugin, i.e. shipped with
          // the editor. Definition must be ommitted for plugins provided by
          // other modules.
          'internal' => TRUE,
          // Boolean whether the editor needs to load this plugin. When TRUE,
          // the editor will automatically load the plugin based on the 'path'
          // variable provided. If FALSE, the plugin either does not need to
          // be loaded or is already loaded by something else on the page.