<?php
// $Id: template.php,v 1.1.2.7.2.17.2.9 2009-12-10 12:40:11 psynaptic Exp $

// Auto-rebuild the theme registry during theme development.
if (theme_get_setting('clean_rebuild_registry')) {
  drupal_rebuild_theme_registry();
}

if (is_null(theme_get_setting('clean_enable_960_grid'))) {
  global $theme_key;

  /*
   * The default values for the theme variables. Make sure $defaults exactly
   * matches the $defaults in the theme-settings.php file.
   */
  $defaults = array(
    'clean_rebuild_registry' => 0,
    'clean_enable_960_grid' => 0,
  );

  // Get default theme settings.
  $settings = theme_get_settings($theme_key);

  // Don't save the toggle_node_info_ variables.
  if (module_exists('node')) {
    foreach (node_get_types() as $type => $name) {
      unset($settings['toggle_node_info_' . $type]);
    }
  }

  // Save default theme settings.
  variable_set(
    str_replace('/', '_', 'theme_'. $theme_key .'_settings'),
    array_merge($defaults, $settings)
  );

  // Force refresh of Drupal internals.
  theme_get_setting('', TRUE);
}

/**
 * Implementation of hook_theme().
 */
function clean_theme() {
  return array(
    'fieldset' => array(
      'arguments' => array('element' => array()),
      'template' => 'fieldset',
    ),
  );
}

/**
 * Override or insert variables into the node templates.
 *
 * @param $vars
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("node" in this case.)
 */
function clean_preprocess_node(&$vars, $hook) {
  $node = $vars['node'];

  $vars['title'] = l($vars['title'], "node/{$vars['node']->nid}", array('html' => TRUE));

  // Create node classes.
  clean_node_classes($vars);

  // Add node template file suggestions for node-type-teaser and node-type-prevew
  if (!$vars['page']) {
    $vars['template_files'][] = 'node-'. $node->type .'--teaser';
    $vars['template_files'][] = 'node-'. $node->type .'-'. $node->nid .'--teaser';
  }

  if ($node->op == 'Preview' && !$vars['teaser']) {
    $vars['template_files'][] = 'node-'. $node->type .'--preview';
    $vars['template_files'][] = 'node-'. $node->type .'-'. $node->nid .'--preview';    
  }
}

/**
 * Override or insert variables into the page templates.
 *
 * @param $vars
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("page" in this case.)
 */
function clean_preprocess_page(&$vars, $hook) {
  $base_path = base_path();
  $path_to_clean = drupal_get_path('theme', 'clean') . '/';
  $path_to_theme = path_to_theme() . '/';
  global $user;

  clean_body_classes($vars);

  $vars['path'] = $base_path . $path_to_theme;

  $logo_path = preg_replace('@^'. $base_path .'@', '', $vars['logo']);
  $vars['logo'] = file_exists($logo_path) ?
    l(theme('image', $logo_path), '<front>', array('attributes' => array('id' => 'logo'), 'html' => TRUE)) : '';

  $vars['site_name'] = l($vars['site_name'], '<front>', array('attributes' => array('id' => 'site-name')));
  $vars['site_slogan'] = '<span id="site-slogan">'. $vars['site_slogan'] .'</span>';

  $vars['skip_link'] = '<div class="acc-hide">
    <a href="#content" class="skip-link">Skip to content</a>
    <a href="#footer" class="skip-link">Skip to footer</a>
  </div>';

  $vars['mission'] = '<span id="mission">'. $vars['mission'] .'</span>';

  if (user_access('administer menus')) {
    $add_link = l(t('Add a primary link'), 'admin/build/menu-customize/primary-links/add', array('query' => drupal_get_destination(), 'attributes' => array('class' => 'add-link')));
  }

  $vars['primary_links'] = (!empty($vars['primary_links'])) ?
    theme('links', $vars['primary_links'], array('class' => 'links primary-links')) :
    $add_link;

  $vars['secondary_links'] = (!empty($vars['secondary_links'])) ?
    theme('links', $vars['secondary_links'], array('class' => 'links secondary-links')) : '';

  if (theme_get_setting('clean_enable_960_grid')) {
    $setings = array(
      'themePath' => $base_path . $path_to_clean,
    );

    drupal_add_js($setings, 'setting');
    drupal_add_js($path_to_clean . 'js/grid.js', 'theme', 'header', FALSE, TRUE, FALSE);
    drupal_add_css($path_to_clean . 'css/grid.css', 'theme');
    $vars['scripts'] = drupal_get_js();
  }

  $vars['styles'] = drupal_get_css(clean_css_stripped());
}

/**
 * Create node classes for node templates files.
 *
 * @param $vars
 *   An array of variables to pass to the theme template.
 * @return $classes
 *   A string of node classes for inserting into the node template.
 */
function clean_node_classes(&$vars) {
  $node = $vars['node'];
  $classes = array();

  // Merge in existing classes.
  if ($vars['classes']) {
    $classes = array($vars['classes']);
  }

  $classes[] = 'node';
  $classes[] = 'node-'. $node->type;
  if ($vars['page']) {
    $classes[] = 'node-'. $node->type . '-page';
  }
  elseif ($vars['teaser']) {
    $classes[] = 'node-teaser';
    $classes[] = 'node-'. $node->type . '-teaser';
  }
  if ($vars['sticky']) {
    $classes[] = 'sticky';
  }
  if (!$vars['status']) {
    $classes[] = 'node-unpublished';
  }

  $vars['attr']['id'] = 'node-'. $node->nid;
  $vars['attr']['class'] = implode(' ', $classes);
}

/**
 * Create body classes for page templates files in addition to those provided by core.
 *
 * @param $vars
 *   An array of variables to pass to the theme template.
 * @return
 *   Adds data to $vars directly.
 */
function clean_body_classes(&$vars) {
  $classes = array();

  // Merge in existing classes.
  if ($vars['body_classes']) {
    $classes = array($vars['body_classes']);
  }

  // Create classes for the user-visible path sections.
  global $base_path;
  list(,$path) = explode($base_path, request_uri(), 2);
  list($path,) = explode('?', $path, 2);
  $path = rtrim($path, '/');

  // Create section classes down to 3 levels. Path is empty if we're at <front>.
  if ($path) {
    $path_alias_sections = array_slice(explode('/', $path), 0, 3);
    $section_path = 'section';
    foreach ($path_alias_sections as $arg_piece) {
      $section_path .= '-'. $arg_piece;
      $classes[] = $section_path;
    }
  }
  $vars['attr']['class'] .= implode(' ', $classes);

  // System path gives us the id, replacing slashes with dashes.
  $system_path = drupal_get_normal_path($path);
  if ($section_path) {
    $vars['attr']['id'] = 'page-'. str_replace('/', '-', $system_path);
  }  
}

/**
 * Implementation of preprocess_block().
 */
function clean_preprocess_block(&$vars) {
  $vars['attr']['id'] = "block-{$vars['block']->module}-{$vars['block']->delta}";
  $vars['attr']['class'] = "block block-{$vars['block']->module}";

  $vars['hook'] = 'block';
  $vars['title'] = $vars['block']->subject;
  $vars['content'] = $vars['block']->content;
}

/**
 * Override or insert variables into the comment templates.
 *
 * @param $vars
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("comment" in this case.)
 */
function clean_preprocess_comment(&$vars) {
  $comment = $vars['comment'];

  $attr = array();
  $vars['attr']['id'] = "comment-{$vars['comment']->cid}";

  $vars['attr']['class'] = "comment {$vars['status']}";

  if ($comment->new) {  
    $vars['attr']['class'] .= ' comment-new';
  }
  if ($vars['zebra']) {
    $vars['attr']['class'] .= ' comment-'. $vars['zebra'];
  }
}

/**
 * Implementation of preprocess_box().
 */
function clean_preprocess_box(&$vars) {
  $attr = array();
  $vars['attr']['class'] = "box";
}

/**
 * Implementation of preprocess_fieldset().
 */
function clean_preprocess_fieldset(&$vars) {
  $vars['hook'] = 'fieldset';
  $element = $vars['element'];

  $attr = array();
  if (isset($element['#attributes'])) {
    $attr = $element['#attributes'];
    $class = $attr['class'];
  }

  $attr['class'] = 'fieldset';
  $attr['class'] .= ' '. $class;
  if (!empty($element['#collapsible']) || !empty($element['#collapsed'])) {
    $attr['class'] .= ' collapsible';
  }
  if (!empty($element['#collapsed'])) {
    $attr['class'] .= ' collapsed';
  }

  $vars['attr'] = $attr;

  if (!empty($element['#description'])) {
    $description = "<div class='description'>{$element['#description']}</div>";
  }
  if (!empty($element['#children'])) {
    $children = $element['#children'];
  }
  if (!empty($element['#value'])) {
    $value = $element['#value'];
  }
  $vars['content'] = $description . $children . $value;

  if (!empty($element['#title'])) {
    $vars['title'] = $element['#title'];
  }
  if (!empty($element['#collapsible']) || !empty($element['#collapsed'])) {
    $vars['title'] = l($vars['title'], $_GET['q'], array('fragment' => 'fieldset'));
  }
}

/**
 * Override theme_menu_local_tasks().
 *
 * Add clear-block class to ul elements.
 */
function clean_menu_local_tasks() {
  $output = '';

  if ($primary = menu_primary_local_tasks()) {
    $output .= "<ul class=\"tabs primary links\">\n". $primary ."</ul>\n";
  }
  if ($secondary = menu_secondary_local_tasks()) {
    $output .= "<ul class=\"tabs secondary links\">\n". $secondary ."</ul>\n";
  }

  return $output;
}

/**
 * Strips CSS files from a Drupal CSS array whose filenames start with
 * prefixes provided in the $match argument.
 */
function clean_css_stripped($match = array('modules/'), $exceptions = NULL) {
  // Set default exceptions
  if (!is_array($exceptions)) {
    $exceptions = array(
      'modules/system/system.css',
      'modules/update/update.css',
      'modules/openid/openid.css',
    );
  }
  $css = drupal_add_css();
  foreach (array_keys($css['all']['module']) as $filename) {
    foreach ($match as $prefix) {
      if (strpos($filename, $prefix) === 0 && !in_array($filename, $exceptions)) {
        unset($css['all']['module'][$filename]);
        continue;
      }
    }
  }

  // Move the "all" CSS key to the front of the stack.
  ksort($css);
  return $css;
}