<?php
// $Id: dialog_example.module,v 1.1.2.1 2011/01/31 20:57:05 drewish Exp $

/**
 * Implementation of hook_menu().
 */
function dialog_example_menu() {
  $items['dialog/example'] = array(
    'title' => 'Dialog example',
    'page callback' => 'dialog_example_page',
    'access arguments' => array('access content'),
  );
  $items['dialog/%ctools_js/example'] = array(
    'type' => MENU_CALLBACK,
    'page callback' => 'dialog_example_ajax_callback',
    'page arguments' => array(1),
    'access arguments' => array('access content'),
  );

  $items['user/login/%ctools_js'] = array(
    'page callback' => 'dialog_login_callback',
    'page arguments' => array(1, 2),
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
  );

  $items['user/register/%ctools_js'] = array(
    'page callback' => 'dialog_login_callback',
    'page arguments' => array(1, 2),
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
  );

  return $items;
}

function dialog_example_page() {
  global $user;

  dialog_add_js();
  $links = array();
  $links[] = l('Simple test', 'dialog/nojs/example', array('attributes' => array('class' => 'ctools-use-dialog')));
  if (!$user->uid) {
    $links[] = l('User login', 'user/login/nojs', array('attributes' => array('class' => 'ctools-use-dialog')));
    $links[] = l('User registration', 'user/register/nojs', array('attributes' => array('class' => 'ctools-use-dialog')));
  }
  else {
    $links[] = l(t('Logout'), 'logout', array('@logout' => url('logout', array('query' => array('destination' => 'dialog/example')))));
  }

  return theme('item_list', $links);
}

function dialog_example_ajax_callback($ajax = FALSE) {
  if ($ajax) {
    $options = array(
      'height' => rand(25, 75) . '%',
      'width' => rand(25, 75) . '%',
      'position' => 'center',
    );
    dialog_ajax_render('test', dialog_example_page(), $options);
    return;
  }

  return 'hello world';
}

/**
* Menu callback for our ajax links.
*/
function dialog_login_callback($type, $js) {
  switch ($type) {
    case 'login':
      $title = t('Login');
      $form_id = 'user_login';
      $msg = 'You are now logged in.';
      break;
    case 'register':
      $title = t('Register');
      $form_id = 'user_register';
      $msg = 'You are now registered.';
      break;
  }

  if ($js) {
    ctools_include('ajax');
    $form_state = array(
      'ajax' => TRUE,
      'title' => $title,
    );
    $output = dialog_form_wrapper($form_id, $form_state);
    if (empty($output)) {
      $output[] = dialog_command_display('Welcome', $msg);
      $output[] = ctools_ajax_command_redirect('user');
    }
    else {
      foreach ($output as $i => $command) {
        if ($command['command'] == 'dialog_display') {
          $output[$i]['options']['height'] = 'auto';
          $output[$i]['options']['width'] = 600;

          $output[$i]['options']['position'] = 'center';
          $output[$i]['options']['resizable'] = FALSE;
        }
      }
    }
    ctools_ajax_render($output);
  }
  else {
    return drupal_get_form($form_id);
  }
}

function dialog_example_form_alter(&$form, $form_state, $form_id) {
  if ($form_id == 'user_login' && !empty($form_state['ajax'])) {
    $form['submit']['#attributes']['class'] = 'ctools-dialog-button';
  }
  elseif ($form_id == 'user_register' && !empty($form_state['ajax'])) {
    $form['submit']['#attributes']['class'] = 'ctools-dialog-button';
  }

}