<?php

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

function basic_preprocess_page(&$vars, $hook) {

  // for easier theming of main and submenus
  $vars['main_menu'] = isset($vars['main_menu']) ? theme('links', $vars['main_menu'], array(), array('id' => array('primary'),'class' => array('links', 'main-menu'))) : FALSE;
  $vars['sub_menu'] = isset($vars['secondary_menu']) ? theme('links', $vars['secondary_menu'], array(), array('id' => array('secondary'),'class' => array('links', 'sub-menu'))) : FALSE;

  // Adding a class to body in wireframe mode
  if (theme_get_setting('wireframe_mode')) {
    $vars['classes_array'][] = 'wireframe-mode';
  }
  
  if (!empty($vars['main_menu']) or !empty($vars['sub_menu'])) {
    $vars['classes_array'][] = 'with-navigation';
  }
  
  // Add PAGE template suggestions based on content type  
  if (!empty($vars['node']->type)) {
      $vars['template_files'][] = "page-type-" . $vars['node']->type;
    }
  if (!empty($vars['node']->nid)) {
    $vars['template_files'][] = "page-node-" . $vars['node']->nid;
  }   
}


function basic_preprocess_block(&$vars, $hook) {
    $block = $vars['block'];

    if (theme_get_setting('block_editing') && user_access('administer blocks')) {
        // Display 'edit block' for custom blocks.
        if ($block->module == 'block') {
          $edit_links[] = l('<span>' . t('edit block') . '</span>', 'admin/structure/block/configure/' . $block->module . '/' . $block->delta,
            array(
              'attributes' => array(
                'title' => t('edit the content of this block'),
                'class' => 'block-edit',
              ),
              'query' => drupal_get_destination(),
              'html' => TRUE,
            )
          );
        }
        // Display 'configure' for other blocks.
        else {
          $edit_links[] = l('<span>' . t('configure') . '</span>', 'admin/structure/block/configure/' . $block->module . '/' . $block->delta,
            array(
              'attributes' => array(
                'title' => t('configure this block'),
                'class' => 'block-config',
              ),
              'query' => drupal_get_destination(),
              'html' => TRUE,
            )
          );
        }
        // Display 'edit menu' for Menu blocks.
        if (($block->module == 'menu' || ($block->module == 'user' && $block->delta == 1)) && user_access('administer menu')) {
          $menu_name = ($block->module == 'user') ? 'navigation' : $block->delta;
          $edit_links[] = l('<span>' . t('edit menu') . '</span>', 'admin/structure/menu-customize/' . $menu_name,
            array(
              'attributes' => array(
                'title' => t('edit the menu that defines this block'),
                'class' => 'block-edit-menu',
              ),
              'query' => drupal_get_destination(),
              'html' => TRUE,
            )
          );
        }
        // Display 'edit menu' for Menu block blocks.
        elseif ($block->module == 'menu_block' && user_access('administer menu')) {
          list($menu_name, ) = split(':', variable_get("menu_block_{$block->delta}_parent", 'navigation:0'));
          $edit_links[] = l('<span>' . t('edit menu') . '</span>', 'admin/structure/menu-customize/' . $menu_name,
            array(
              'attributes' => array(
                'title' => t('edit the menu that defines this block'),
                'class' => 'block-edit-menu',
              ),
              'query' => drupal_get_destination(),
              'html' => TRUE,
            )
          );
        }

        $vars['edit_links_array'] = $edit_links;
        $vars['edit_links'] = '<div class="edit">' . implode(' ', $edit_links) . '</div>';
      }
  }

//	
//	Add custom classes to menu item
//	
	
function basic_menu_item($link, $has_children, $menu = '', $in_active_trail = FALSE, $extra_class = NULL) {
  $class = ($menu ? 'expanded' : ($has_children ? 'collapsed' : 'leaf'));
  if (!empty($extra_class)) {
    $class .= ' '. $extra_class;
  }
  if ($in_active_trail) {
    $class .= ' active-trail';
  }
  // New line added to get unique classes for each menu item
  $css_class = basic_id_safe(str_replace(' ', '_', strip_tags($link)));
  return '<li class="'. $class . ' ' . $css_class . '">' . $link . $menu ."</li>\n";
}

// 	
// 	Customize the PRIMARY and SECONDARY LINKS, to allow the admin tabs to work on all browsers
// 	An implementation of theme_menu_item_link()
// 	
// 	@param $link
// 	  array The menu item to render.
// 	@return
// 	  string The rendered menu item.
// 	

function basic_menu_item_link($link) {
  if (empty($link['options'])) {
    $link['options'] = array();
  }
  // If an item is a LOCAL TASK, render it as a tab
  if ($link['type'] & MENU_IS_LOCAL_TASK) {
    $link['title'] = '<span class="tab">'. check_plain($link['title']) .'</span>';
    $link['options']['html'] = TRUE;
  }
  if (empty($link['type'])) {
    $true = TRUE;
  }
  return l($link['title'], $link['href'], $link['options']);
}

//
//  Duplicate of theme_menu_local_tasks() but adds clearfix to tabs.
//
function basic_menu_local_tasks() {
  $output = '';
  if ($primary = menu_primary_local_tasks()) {
    $output .= "<ul class=\"tabs primary clearfix\">\n". $primary ."</ul>\n";
  }
  if ($secondary = menu_secondary_local_tasks()) {
    $output .= "<ul class=\"tabs secondary clearfix\">\n". $secondary ."</ul>\n";
  }
  return $output;
}


//	
//	Converts a string to a suitable html ID attribute.
//	
//	 http://www.w3.org/TR/html4/struct/global.html#h-7.5.2 specifies what makes a
//	 valid ID attribute in HTML. This function:
//	
//	- Ensure an ID starts with an alpha character by optionally adding an 'n'.
//	- Replaces any character except A-Z, numbers, and underscores with dashes.
//	- Converts entire string to lowercase.
//	
//	@param $string
//	  The string
//	@return
//	  The converted string
//	


function basic_id_safe($string) {
  // Replace with dashes anything that isn't A-Z, numbers, dashes, or underscores.
  $string = strtolower(preg_replace('/[^a-zA-Z0-9_-]+/', '-', $string));
  // If the first character is not a-z, add 'n' in front.
  if (!ctype_lower($string{0})) { // Don't use ctype_alpha since its locale aware.
    $string = 'id'. $string;
  }
  return $string;
}


//
//  Return a themed breadcrumb trail.
//	Alow you to customize the breadcrumb markup
//

function basic_breadcrumb($breadcrumb) {
  if (!empty($breadcrumb)) {
    return '<div class="breadcrumb">'. implode(' » ', $breadcrumb) .'</div>';
  }
}