<?php
// $Id: formblock.module,v 1.4.2.2 2008/12/10 02:42:39 mikeyp Exp $

/**
 * Implementation of hook_form_alter().
 */
function formblock_form_alter(&$form, $form_state, $form_id) {
  if ($form_id == 'node_type_form' && isset($form['identity']['type'])) {
    $options = array(t('Disabled'), t('Enabled'));
    $form['formblock'] = array(
      '#type' => 'fieldset',
      '#title' => t('Form block'),
      '#weight' => 0,
    );
    $form['formblock']['formblock_expose'] = array(
      '#type' => 'radios',
      '#title' => t('Enable data entry from a block'),
      '#default_value' => variable_get('formblock_expose_'. $form['#node_type']->type, 0),
      '#options' => $options,
      '#description' => t('Enable this option to make the entry form for this content type available as a block.'),
    );
  }
}

/**
 * Implementation of hook_block().
 */
function formblock_block($op = 'list', $delta = 0, $edit = array()) {
  switch ($op) {
    case 'list':
      $blocks = array();
      foreach (node_get_types('names') as $type => $name) {
        if (variable_get('formblock_expose_'. $type, 0)) {
          $blocks[$type] = array(
            'info' => t('@name form block', array('@name' => $name)),
          );
        }
      }
      $blocks['user_register'] = array(
        'info' => t('User registration form'));
      if (module_exists('contact')) {
        $blocks['contact_site'] = array(
          'info' => t('Site-wide contact form'));
      }
      return $blocks;

    case 'view':
      switch ($delta) {
        case 'user_register':
          global $user;
          // Don't display the form to logged in users or if registration is disabled
          if (!$user->uid && variable_get('user_register', 1)) {
            drupal_add_css(drupal_get_path('module', 'formblock'). '/formblock.css', 'module', 'all');
            return array(
              'subject' => t('Create new account'),
              'content' => drupal_get_form('user_register')
            );
          }
          break;

        case 'contact_site':
          if (user_access('access site-wide contact form') && module_exists('contact')) {
            if (!flood_is_allowed('contact', variable_get('contact_hourly_threshold', 3))) {
              $content = t("You cannot send more than %number messages per hour. Please try again later.", array('%number' => variable_get('contact_hourly_threshold', 3)));
            }
            else {
              drupal_add_css(drupal_get_path('module', 'formblock'). '/formblock.css', 'module', 'all');
              module_load_include('inc', 'contact', 'contact.pages');
              $content = drupal_get_form('contact_mail_page');
            }
            return array(
              'subject' => t('Contact'),
              'content' => $content,
            );
          }
          break;

        default:
          return formblock_get_block($delta);

    }
  }
}

/**
 * Generate a block containing a node entry form.
 */
function formblock_get_block($type) {
  if (node_access('create', $type)) {
    // Include page handler for node_add()
    module_load_include('inc', 'node', 'node.pages');
    // Note title before rendering of form.
    $title = drupal_get_title();
    $form = node_add($type);
    $types = node_get_types('names');
    // Restore title, which will have been overridden.
    drupal_set_title($title);
    return array(
      'subject' => t('@type form', array('@type' => $types[$type])),
      'content' => $form,
    );
  }
}