<?php
// $Id$
/**
* @file
* Lets users add private annotations to nodes.
*
* Adds a text field when a node is displayed
* so that authenticated users may make notes.
*/

/**
* Implementation of hook_menu().
*/
function annotate_menu() {
  $items['admin/annotate'] = array(
  'title' => 'Node annotation',
  'description' => 'Adjust node annotation options.',
  'position' => 'right',
  'weight' => -5,
  'page callback' => 'system_admin_menu_block_page',
  'access arguments' => array('administer site configuration'),
  'file' => 'system.admin.inc',
  'file path' => drupal_get_path('module', 'system'),
  );


  $items['admin/annotate/settings'] = array(
  'title' => 'Annotation settings',
  'description' => 'Change how annotations behave.',
  'page callback' => 'drupal_get_form',
  'page arguments' => array('annotate_admin_settings'),
  'access arguments' => array('administer site configuration'),
  'type' => MENU_NORMAL_ITEM,
  'file' => 'annotate.admin.inc',
  );


   return $items;

}


function annotate_view($node,$view_mode){
   // nem fut le
    return $node;
}




/**
* Implementation of hook_nodeapi().
*/
function annotate_nodeapi(&$node, $op, $teaser, $page) {

  global $user;
  switch ($op) {
    // The 'view' operation means the node is about to be displayed.
      case 'view':
    // Abort if the user is an anonymous user (not logged in) or
    // if the node is not being displayed on a page by itself
    // (for example, it could be in a node listing or search result).
       if ($user->uid == 0 || !$page) {
         break;
       }

       // Find out which node types we should annotate.
       $types_to_annotate = variable_get('annotate_nodetypes', array('page'));
       // Abort if this node is not one of the types we should annotate.
       if (!in_array($node->type, $types_to_annotate)) {
         break;
       }
       // Add our form as a content item.
       $node->content['annotation_form'] = array(
       '#value' => drupal_get_form('annotate_entry_form', $node),
       '#weight' => 10
       );
       break;
  }
}



/**
* Define the form for entering an annotation.
*/
function annotate_entry_form($form_state, $node) {
// Define a fieldset.
  $form['annotate'] = array(
    '#type' => 'fieldset',
    '#title' => t('Annotations'),
  );
  // Define a textarea inside the fieldset.
  $form['annotate']['note'] = array(
    '#type' => 'textarea',
    '#title' => t('Notes'),
    '#default_value' => isset($node->annotation) ? $node->annotation : '',
    '#description' => t('Make your personal annotations about this content here.
      Only you (and the site administrator) will be able to see them.')
  );
// For convenience, save the node ID.
  $form['annotate']['nid'] = array(
    '#type' => 'value',
    '#value' => $node->nid,
  );
  // Define a submit function.
  $form['annotate']['submit'] = array(
   '#type' => 'submit',
   '#value' => t('Update'),
  );
  return $form;
}