<?php
/**
 * @file
 * Code for the Commons Documents feature.
 */

include_once 'commons_documents.features.inc';

/**
 * Implements hook_commons_entity_integration().
 */
function commons_documents_commons_entity_integration() {
  return array(
    'node' => array(
      'document' => array(
        'is_group_content' => TRUE,
      ),
    ),
  );
}

/**
 * Implements hook_commons_bw_group_widget().
 */
function commons_documents_commons_bw_group_widget() {
  return array(
    'commons_documents' => array(
      'title' => t('Docs'),
      'type' => 'view',
      'vid' => 'commons_bw_documents',
      'display' => 'default',
      'weight' => 6,
      'bundle' => 'document',
    ),
  );
}

/**
 * Implements hook_form_FROM_ID_alter().
 */
function commons_documents_form_commons_bw_partial_node_form_alter(&$form, &$form_state) {
  if (empty($form['#entity']) || $form['#entity']->type != 'document') {
    return;
  }

  $language = $form['body']['#language'];
  $form['body'][$language][0]['#title_display'] = 'invisible';
  $form['body'][$language][0]['#required'] = TRUE;
  $form['body'][$language][0]['#placeholder'] = t('Describe the document');
  $form['body'][$language][0]['#resizable'] = FALSE;

  // Set fields as hideable so the forms can be compacted.
  $form['body']['#attributes']['class'][] = 'trigger-field';
  foreach (array('field_image', 'og_group_ref', 'field_document_file', 'actions') as $field) {
    if (isset($form[$field])) {
      $form[$field]['#attributes']['class'][] = 'hideable-field';
    }
  }

  $form['#pre_render'][] = 'commons_documents_form_commons_bw_partial_node_form_after_build';
}

/**
 * After-build call-back.
 * See commons_documents_form_commons_bw_partial_node_form_alter().
 */
function commons_documents_form_commons_bw_partial_node_form_after_build($form) {
  $language = $form['body']['#language'];
  $form['body'][$language][0]['#pre_render'] = array();
  $form['body'][$language][0]['format']['#access'] = FALSE;
  $form['body'][$language][0]['value']['#rows'] = 3;

  return $form;
}

/**
 * Implements hook_views_default_views_alter().
 *
 * Display documents on the browsing widget main view.
 */
function commons_documents_views_default_views_alter(&$views) {
  if (!empty($views['commons_bw_all'])) {
    $views['commons_bw_all']->display['default']->display_options['filters']['type']['value']['document'] = 'document';
  }
}

/**
 * Implements hook_views_pre_render().
 */
function commons_documents_views_pre_render(&$view) {
  // Improve the browsing widget empty text when displayed outside of a group.
  // TODO: Enable og_context and check group context instead of looking for an
  // empty first argument.
  if (empty($view->args[0]) && $view->name == 'commons_bw_documents') {
    $view->display_handler->handlers['empty']['area']->options['content'] = t('No documents have been created.');
  }
}