DRUPAL*DRUPAL

<?php
// $Id: trackback_ui.module,v 1.0 2008/04/11 0829 Exp $

/**
 * Implementation of hook_form_alter().
 */
function trackback_ui_form_alter(&$form, $form_state, $form_id) {
  switch ($form_id) {
    case 'trackback_configure':
      $form['trackback_ui_nospam'] = array(
        '#type' => 'fieldset',
        '#title' => t('Trackback nospam settings'),
        '#description' => t('Note: This setting is only used in the case of the automatic detection is disabled.'),
        '#collapsible' => TRUE,
        '#collapsed' => FALSE,
      );
      $form['trackback_ui_nospam']['trackback_ui_autodetect'] = array(
        '#type' => 'checkbox',
        '#title' => t('Trackback Auto-Discovery un-output'),
        '#description' => t('If checked, rdf code for Trackback Auto-Discovery is not output.'),
        '#default_value' => variable_get('trackback_ui_autodetect', 0),
      );
      $form['trackback_ui_nospam']['trackback_ui_nospamword'] = array(
        '#type' => 'textfield',
        '#title' => t('Nospam word'),
        '#default_value' => variable_get('trackback_ui_nospamword', 'nospam'),
        '#description' => t('Define the no-spam word for sufix of the trackback URL. If blank, not used.'),
        '#required' => FALSE,
      );
      $form['trackback_ui_interface'] = array(
        '#type' => 'fieldset',
        '#title' => t('Trackback user interface settings'),
        '#collapsible' => TRUE,
        '#collapsed' => FALSE,
      );
      $form['trackback_ui_interface']['trackback_ui_oneclick'] = array(
        '#type' => 'radios',
        '#title' => t('URL one click selection'),
        '#default_value' => variable_get('trackback_ui_oneclick', 0),
        '#options' => array(
          0 => t('Disable'),
          1 => t('Enable')
        ),
        '#description' => t('If checked, allow one-click select of trackback URL.'),
      );
      // Move submit buttons to bottom
      $form['buttons']['#weight'] = 1;
      break;
  }
}

/**
 * Implementation of hook_nodeapi().
 */
function trackback_ui_nodeapi(&$node, $op, $teaser = NULL, $page = NULL) {
  switch ($op) {
    case 'view':
      if (isset($node->can_receive) && empty($node->in_preview)) {
        if ($node->can_receive) {
          if (variable_get('trackback_auto_detection_enabled', 0) == 0 && variable_get('trackback_ui_autodetect', 0) == 1) {
            unset($node->content['trackback']['autodetect']);
          }
          if (!$teaser) {
            $tb_url = url('trackback/'. $node->nid, array('absolute' => TRUE));
            $tb_nospam_word = variable_get('trackback_ui_nospamword', 'nospam');
            if (variable_get('trackback_auto_detection_enabled', 0) == 0 && variable_get('trackback_ui_autodetect', 0) == 1 && $tb_nospam_word != '') {
              $tb_url = url('trackback/' . $node->nid . '-' . $tb_nospam_word, array('absolute' => TRUE));
            }
            if (variable_get('trackback_ui_oneclick', 0) == 1) {
              $node->content['trackback']['url']['#value'] = theme('trackback_ui_oneclick_url', $tb_url);
            }
            else {
              $node->content['trackback']['url']['#value'] = theme('trackback_ui_url', $tb_url);
            }
          }
        }
      }
      break;
  }
}

/**
 * Implementation of hook_theme().
 */
function trackback_ui_theme() {
  return array(
    'trackback_ui_url' => array(
      'arguments' => array('url' => NULL)
    ),
    'trackback_ui_oneclick_url' => array(
      'arguments' => array('url' => NULL)
    ),
  );
}

function theme_trackback_ui_url($url) {
  drupal_add_css(drupal_get_path('module', 'trackback_ui') . '/trackback_ui.css');
  $tb_moderation = variable_get('trackback_moderation', 0);
  $tb_nospam_word = variable_get('trackback_ui_nospamword', 'nospam');
  if (variable_get('trackback_auto_detection_enabled', 0) == 0 && variable_get('trackback_ui_autodetect', 0) == 1 && $tb_nospam_word != '') {
    $tb_url_sufix = TRUE;
  }
  $output[] = '<div class="tb-url">' . $url . '</div>';
  if ($tb_url_sufix || $tb_moderation == 1) {
    $output[] = '<div class="tb-message-wrapper">';
    if ($tb_url_sufix) {
      $output[] = '<div class="tb-message">' . t('Please transmit a trackback with "-%nospam" deleted from the URL.', array('%nospam' => $tb_nospam_word)) . '</div>';
    }
    if ($tb_moderation == 1) {
      $output[] = '<div class="tb-moderation">' . t('Your received trackback is appeared on this page after approved.') . '</div>';
    }
    $output[] = '</div>';
  }
  return '<div id="trackback-url">' . theme('box', t('Trackback URL for this post:'), implode("\n", $output)) . '</div>';
}

function theme_trackback_ui_oneclick_url($url) {
  drupal_add_css(drupal_get_path('module', 'trackback_ui') . '/trackback_ui.css');
  $tb_moderation = variable_get('trackback_moderation', 0);
  $tb_nospam_word = variable_get('trackback_ui_nospamword', 'nospam');
  if (variable_get('trackback_auto_detection_enabled', 0) == 0 && variable_get('trackback_ui_autodetect', 0) == 1 && $tb_nospam_word != '') {
    $tb_url_sufix = TRUE;
  }
  $output[] = '<div class="tb-url-wrapper">';
  $output[] = '<label for="tb-url" class="tb-label">' . t('Trackback URL for this post:') . '</label><br />';
  $output[] = '<input type="text" name="tb-url" id="tb-url"  class="tb-url" value="' . $url . '" readonly="readonly" onfocus="this.select()" />';
  $output[] = '</div>';
  if ($tb_url_sufix || $tb_moderation == 1) {
    $output[] = '<div class="tb-message-wrapper">';
    if ($tb_url_sufix) {
      $output[] = '<div class="tb-message">' . t('Please transmit a trackback with "-%nospam" deleted from the URL.', array('%nospam' => $tb_nospam_word)) . '</div>';
    }
    if ($tb_moderation == 1) {
      $output[] = '<div class="tb-moderation">' . t('Your received trackback is appeared on this page after approved.') . '</div>';
    }
    $output[] = '</div>';
  }
  return '<div id="trackback-url">' . theme('box', t('Trackbacks'), implode("\n", $output)) . '</div>';
}