' . implode($breadcrumb_separator, $breadcrumb) . "$trailing_separator";
}
}
// Otherwise, return an empty string
return '';
}
/**
* Implements theme_menu_item_link()
*/
function zen_menu_item_link($link) {
if (empty($link['localized_options'])) {
$link['localized_options'] = array();
}
// If an item is a LOCAL TASK, render it as a tab
if ($link['type'] & MENU_IS_LOCAL_TASK) {
$link['title'] = '' . check_plain($link['title']) . '';
$link['localized_options']['html'] = TRUE;
}
return l($link['title'], $link['href'], $link['localized_options']);
}
/**
* Duplicate of theme_menu_local_tasks() but adds clear-block to tabs.
*/
function zen_menu_local_tasks() {
$output = '';
if ($primary = menu_primary_local_tasks()) {
$output .= '';
}
if ($secondary = menu_secondary_local_tasks()) {
$output .= '';
}
return $output;
}
/**
* Override or insert variables into the page templates.
*
* @param $vars
* An array of variables to pass to the theme template.
* @param $hook
* The name of the template being rendered ("page" in this case.)
*/
function zen_preprocess_page(&$vars, $hook) {
global $theme;
// These next lines add additional CSS files and redefine
// the $css and $styles variables available to your page template
if ($theme == 'zen') { // If we're in the main theme
// Load the stylesheet for a liquid layout
if (theme_get_setting('zen_layout') == 'border-politics-liquid') {
drupal_add_css($vars['directory'] . '/layout-liquid.css', 'theme', 'all');
}
// Or load the stylesheet for a fixed width layout
else {
drupal_add_css($vars['directory'] . '/layout-fixed.css', 'theme', 'all');
}
}
// Optionally add the block editing styles.
if (theme_get_setting('zen_block_editing')) {
drupal_add_css(path_to_zentheme() . '/block-editing.css', 'theme', 'all');
}
// Optionally add the wireframes style.
if (theme_get_setting('zen_wireframes')) {
drupal_add_css(path_to_zentheme() . '/wireframes.css', 'theme', 'all');
}
$vars['css'] = drupal_add_css();
$vars['styles'] = drupal_get_css();
// Allow sub-themes to have an ie.css file
$vars['zentheme_directory'] = path_to_zentheme();
// Add an optional title to the end of the breadcrumb.
if (theme_get_setting('zen_breadcrumb_title') && $vars['breadcrumb']) {
$vars['breadcrumb'] = substr($vars['breadcrumb'], 0, -6) . $vars['title'] . '';
}
// Don't display empty help from node_help().
if ($vars['help'] == "") {
$vars['help'] = '';
}
// Classes for body element. Allows advanced theming based on context
// (home page, node of certain type, etc.)
$body_classes = array($vars['body_classes']);
if (!$vars['is_front']) {
// Add unique classes for each page and website section
$path = drupal_get_path_alias($_GET['q']);
list($section, ) = explode('/', $path, 2);
$body_classes[] = zen_id_safe('page-' . $path);
$body_classes[] = zen_id_safe('section-' . $section);
if (arg(0) == 'node') {
if (arg(1) == 'add') {
if ($section == 'node') {
array_pop($body_classes); // Remove 'section-node'
}
$body_classes[] = 'section-node-add'; // Add 'section-node-add'
}
elseif (is_numeric(arg(1)) && (arg(2) == 'edit' || arg(2) == 'delete')) {
if ($section == 'node') {
array_pop($body_classes); // Remove 'section-node'
}
$body_classes[] = 'section-node-' . arg(2); // Add 'section-node-edit' or 'section-node-delete'
}
}
}
$vars['body_classes'] = implode(' ', $body_classes); // Concatenate with spaces
}
/**
* Override or insert variables into the node templates.
*
* @param $vars
* An array of variables to pass to the theme template.
* @param $hook
* The name of the template being rendered ("node" in this case.)
*/
function zen_preprocess_node(&$vars, $hook) {
global $user;
// Special classes for nodes
$node_classes = array();
if ($vars['sticky']) {
$node_classes[] = 'sticky';
}
if (!$vars['node']->status) {
$node_classes[] = 'node-unpublished';
$vars['unpublished'] = TRUE;
}
else {
$vars['unpublished'] = FALSE;
}
if ($vars['node']->uid && $vars['node']->uid == $user->uid) {
// Node is authored by current user
$node_classes[] = 'node-mine';
}
if ($vars['teaser']) {
// Node is displayed as teaser
$node_classes[] = 'node-teaser';
}
// Class for node type: "node-type-page", "node-type-story", "node-type-my-custom-type", etc.
$node_classes[] = 'node-type-' . $vars['node']->type;
$vars['node_classes'] = implode(' ', $node_classes); // Concatenate with spaces
}
/**
* Override or insert variables into the comment templates.
*
* @param $vars
* An array of variables to pass to the theme template.
* @param $hook
* The name of the template being rendered ("comment" in this case.)
*/
function zen_preprocess_comment(&$vars, $hook) {
include_once './' . drupal_get_path('theme', 'zen') . '/template.comment.inc';
_zen_preprocess_comment($vars, $hook);
}
/**
* Override or insert variables into the block templates.
*
* @param $vars
* An array of variables to pass to the theme template.
* @param $hook
* The name of the template being rendered ("block" in this case.)
*/
function zen_preprocess_block(&$vars, $hook) {
$block = $vars['block'];
// Special classes for blocks.
$classes = array('block');
$classes[] = 'block-' . $block->module;
$classes[] = 'region-' . $vars['block_zebra'];
$classes[] = $vars['zebra'];
$classes[] = 'region-count-' . $vars['block_id'];
$classes[] = 'count-' . $vars['id'];
$vars['classes'] = implode(' ', $classes);
$vars['edit_links_array'] = array();
$vars['edit_links'] = '';
if (theme_get_setting('zen_block_editing') && user_access('administer blocks')) {
include_once './' . drupal_get_path('theme', 'zen') . '/template.block-editing.inc';
zen_preprocess_block_editing($vars, $hook);
}
}
/**
* 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 'id'.
* - Replaces any character except A-Z, numbers, and underscores with dashes.
* - Converts entire string to lowercase.
*
* @param $string
* The string
* @return
* The converted string
*/
function zen_id_safe($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 the path to the main zen theme directory.
*/
function path_to_zentheme() {
static $theme_path;
if (!isset($theme_path)) {
$theme_path = drupal_get_path('theme', 'zen');
}
return $theme_path;
}