<?php
// $Id: themekey_ui.module,v 1.5 2009-11-09 20:02:51 mkalkbrenner Exp $

/**
 * Implementation of hook_theme()
 */
function themekey_ui_theme() {
  return array(
    'themekey_ui_table' => array(
      'arguments' => array('form' => NULL),
    )
  );
}

/**
 * Implementation of hook_perm().
 */
function themekey_ui_perm() {
  return array('assign node themes');
}

/**
 * Implementation of hook_menu().
 */
function themekey_ui_menu() {
  $items = array();
  $items['admin/settings/themekey/settings/ui'] = array(
    'title' => 'User Interface',
    'access callback' => 'user_access',
    'access arguments' => array('administer themekey settings'),
    'file' => 'themekey_ui_admin.inc',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('_themekey_ui_settings_form'),
    'type' => MENU_LOCAL_TASK,
    'weight' => 1
  );

  return $items;
}

/**
 * Implementation of hook_form_alter().
 */
function themekey_ui_form_alter(&$form, $form_state, $form_id) {
  // Node form
  if (variable_get('themekey_ui_nodeform', 0) && user_access('assign node themes')) {
    $type = isset($form['type']['#value']) ? $form['type']['#value'] : FALSE;
    if ($form_id == $type .'_node_form' && variable_get('themekey_ui_nodeform|'. $type, 1)) {
      require_once(drupal_get_path('module', 'themekey_ui') .'/themekey_ui_admin.inc');
      _themekey_ui_nodeform($form, $form_state);
    }
  }
  // Path aliases
  if ($form_id == 'path_admin_form' && variable_get('themekey_ui_pathalias', 0)) {
    require_once(drupal_get_path('module', 'themekey_ui') .'/themekey_ui_admin.inc');
    _themekey_ui_pathalias($form, $form_state);
  }
// REVIEW seems to be dead code
//  // Views
//  if ($form_id == 'views_ui_edit_display_form' && $form_state['#section'] == 'page-path'
//    && variable_get('themekey_ui_views', 0) && user_access('administer views')) {
//    require_once(drupal_get_path('module', 'themekey_ui') .'/themekey_ui_admin.inc');
//    _themekey_ui_views($form, $form_state);
//  }
}

/**
 * Implementation of hook_nodeapi().
 */
function themekey_ui_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
  switch ($op) {
    case 'load':
      if (variable_get('themekey_ui_nodeform', 0) && variable_get('themekey_ui_nodeform|'. $node->type, 1)) {
        if (!empty($node->vid)) {
          $theme = db_result(db_query('SELECT theme FROM {themekey_ui_node_theme} WHERE nid = %d AND vid = %d', $node->nid, $node->vid));
          if ($theme) {
            $node->theme = $theme;
          }
          else {
            $node->theme = 'default';
          }
        }
      }
      break;

    case 'insert':
      if (!empty($node->theme)) {
        $item = array('nid' => $node->nid, 'vid' => $node->vid, 'theme' => $node->theme);
        if (drupal_write_record('themekey_ui_node_theme', $item)) {
          $themes[$node->vid] = $node->theme;
        }
      }
      break;

    case 'update':
      if (!empty($node->theme)) {
        $item = array('nid' => $node->nid, 'vid' => $node->vid, 'theme' => $node->theme);
        if (drupal_write_record('themekey_ui_node_theme', $item, array('nid', 'vid'))) {
          $themes[$node->vid] = $node->theme;
        }
      }
      break;

    case 'delete':
      db_query('DELETE FROM {themekey_ui_node_theme} WHERE nid = %d', $node->nid);
      break;
  }
}

/**
 * Function themekey_ui_form_submit().
 */
function themekey_ui_form_submit($form, &$form_state) {
  if (isset($form_state['values']['themekey_ui_submit'])) {
    require_once(drupal_get_path('module', 'themekey_ui') .'/themekey_ui_admin.inc');
    $handler = $form_state['values']['themekey_ui_submit'];
    if (function_exists($handler)) {
      $handler($form, $form_state);
    }
  }
}