<?php
// $Id: block_class.module,v 1.3.2.1 2010-01-18 22:09:51 toddnienkerk Exp $

function block_class_menu($may_cache) {
  if (!$may_cache && strpos($_GET['q'], 'admin/build/block/configure/') === 0 && isset($_POST['css_class']) && user_access('administer blocks')) {
    $module = arg(4);
    $delta = arg(5);
    $class = $_POST['css_class'];

    db_query('DELETE FROM {block_class} WHERE module = "%s" AND delta = "%s"', $module, $delta);

    if (!empty($class)) {
      db_query('INSERT INTO {block_class} (module, delta, css_class) VALUES ("%s", "%s", "%s")', $module, $delta, $class);
    }
  } 
}


function block_class($block) {
  $attributes = block_class_attributes($block);
  return check_plain($attributes->css_class);
}


function block_class_attributes($block) {
  $ret = db_fetch_object(db_query('SELECT css_class FROM {block_class} WHERE module = "%s" AND delta = "%s"', $block->module, $block->delta));
  if ($ret !== FALSE) {
    return $ret;
  }

  $undef = (object) NULL;
  $undef->css_class = '';
  return $undef;
}


function block_class_form_alter($form_id, &$form) {
  if ($form_id == 'block_admin_configure') {

    $block->module = $form['module']['#value'];
    $block->delta = $form['delta']['#value'];
    $attributes = block_class_attributes($block);
    
    $form['block_class'] = array(
      '#type' => 'fieldset',
      '#title' => t('Block Class settings'),
      '#collapsible' => TRUE,
      '#weight' => -1,
    );
      $form['block_class']['css_class'] = array(
        '#type' => 'textfield',
        '#title' => t('CSS class(es)'),
        '#default_value' => $attributes->css_class,
        '#description' => t('Separate classes with a space. IMPORTANT: You must add &lt;?php print block_class($block); ?&gt; to your theme\'s block.tpl.php file to make the classes appear.'),
      );
  }
}