' . implode($breadcrumb_separator, $breadcrumb) . "$trailing_separator$title";
}
}
// Otherwise, return an empty string.
return '';
}
/**
* Implements theme_menu_item_link()
*/
function zen_menu_item_link($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, $hook) {
// If the user is silly and enables Zen as the theme, add some styles.
if ($GLOBALS['theme'] == 'zen') {
include_once './' . _zen_path() . '/zen-internals/template.zen.inc';
_zen_preprocess_page($vars, $hook);
}
// Add conditional stylesheets.
elseif (!module_exists('conditional_styles')) {
$vars['styles'] .= $vars['conditional_styles'] = variable_get('conditional_styles_' . $GLOBALS['theme'], '');
}
// Classes for body element. Allows advanced theming based on context
// (home page, node of certain type, etc.)
$classes = explode(' ', $vars['body_classes']);
// Remove the mostly useless page-ARG0 class.
if ($index = array_search(preg_replace('![^abcdefghijklmnopqrstuvwxyz0-9-_]+!s', '', 'page-'. drupal_strtolower(arg(0))), $classes)) {
unset($classes[$index]);
}
if (!$vars['is_front']) {
// Add unique class for each page.
$path = drupal_get_path_alias($_GET['q']);
$classes[] = zen_id_safe('page-' . $path);
// Add unique class for each website section.
list($section, ) = explode('/', $path, 2);
if (arg(0) == 'node') {
if (arg(1) == 'add') {
$section = 'node-add';
}
elseif (is_numeric(arg(1)) && (arg(2) == 'edit' || arg(2) == 'delete')) {
$section = 'node-' . arg(2);
}
}
$classes[] = zen_id_safe('section-' . $section);
}
if (theme_get_setting('zen_wireframes')) {
$classes[] = 'with-wireframes'; // Optionally add the wireframes style.
}
// Add new sidebar classes in addition to Drupal core's sidebar-* classes.
// This provides some backwards compatibility with Zen 6.x-1.x themes.
if ($vars['layout'] != 'both') {
$new_layout = ($vars['layout'] == 'left') ? 'first' : 'second';
if (array_search('sidebar-' . $vars['layout'], $classes)) {
$classes[] = 'sidebar-' . $new_layout;
}
// Replace core's $layout variable with our naming of sidebars.
$vars['layout'] = $new_layout;
}
$vars['body_classes_array'] = $classes;
$vars['body_classes'] = implode(' ', $classes); // Concatenate with spaces.
}
/**
* Override or insert variables into the maintenance page template.
*
* @param $vars
* An array of variables to pass to the theme template.
* @param $hook
* The name of the template being rendered ("maintenance_page" in this case.)
*/
function zen_preprocess_maintenance_page(&$vars, $hook) {
// If Zen is the maintenance theme, add some styles.
if ($GLOBALS['theme'] == 'zen') {
include_once './' . _zen_path() . '/zen-internals/template.zen.inc';
_zen_preprocess_page($vars, $hook);
}
// Add conditional stylesheets.
elseif (!module_exists('conditional_styles')) {
$vars['styles'] .= $vars['conditional_styles'] = variable_get('conditional_styles_' . $GLOBALS['theme'], '');
}
// Classes for body element. Allows advanced theming based on context
// (home page, node of certain type, etc.)
$vars['body_classes_array'] = explode(' ', $vars['body_classes']);
}
/**
* 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, $hook) {
// Create the build_mode variable.
switch ($vars['node']->build_mode) {
case NODE_BUILD_NORMAL:
$vars['build_mode'] = $vars['teaser'] ? 'teaser' : 'full';
break;
case NODE_BUILD_PREVIEW:
$vars['build_mode'] = 'preview';
break;
case NODE_BUILD_SEARCH_INDEX:
$vars['build_mode'] = 'search_index';
break;
case NODE_BUILD_SEARCH_RESULT:
$vars['build_mode'] = 'search_result';
break;
case NODE_BUILD_RSS:
$vars['build_mode'] = 'rss';
break;
case NODE_BUILD_PRINT:
$vars['build_mode'] = 'print';
break;
}
// Create the user_picture variable.
$vars['user_picture'] = $vars['picture'];
// Special classes for nodes.
$classes = array('node');
// Class for node type: "node-type-page", "node-type-story", "node-type-my-custom-type", etc.
$classes[] = zen_id_safe('node-type-' . $vars['type']);
if ($vars['promote']) {
$vars['classes_array'][] = 'node-promoted';
}
if ($vars['sticky']) {
$classes[] = 'node-sticky';
}
if (!$vars['status']) {
$classes[] = 'node-unpublished';
$vars['unpublished'] = TRUE;
}
else {
$vars['unpublished'] = FALSE;
}
if ($vars['uid'] && $vars['uid'] == $GLOBALS['user']->uid) {
$classes[] = 'node-mine'; // Node is authored by current user.
}
if ($vars['teaser']) {
$classes[] = 'node-teaser'; // Node is displayed as teaser.
}
if (isset($vars['preview'])) {
$vars['classes_array'][] = 'node-preview';
}
$vars['classes_array'] = $classes;
}
/**
* 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, $hook) {
include_once './' . _zen_path() . '/zen-internals/template.comment.inc';
_zen_preprocess_comment($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'];
$vars['edit_links_array'] = array();
if (theme_get_setting('zen_block_editing') && user_access('administer blocks')) {
include_once './' . _zen_path() . '/zen-internals/template.block-editing.inc';
zen_preprocess_block_editing($vars, $hook);
$classes[] = 'with-block-editing';
}
// Render block classes.
$vars['classes_array'] = $classes;
}
/**
* Override or insert variables into templates after preprocess functions have run.
*
* @param $vars
* An array of variables to pass to the theme template.
* @param $hook
* The name of the template being rendered.
*/
function zen_process(&$vars, $hook) {
switch ($hook) {
case 'page':
case 'maintenance_page':
$vars['body_classes'] = !empty($vars['body_classes_array']) ? implode(' ', $vars['body_classes_array']) : '';
break;
default:
$vars['classes'] = !empty($vars['classes_array']) ? implode(' ', $vars['classes_array']) : '';
break;
}
}
/**
* Override or insert variables into the block templates after preprocess functions have run.
*
* @param $vars
* An array of variables to pass to the theme template.
* @param $hook
* The name of the template being rendered ("block" in this case.)
*/
function zen_process_block(&$vars, $hook) {
$vars['edit_links'] = !empty($vars['edit_links_array']) ? '' . implode(' ', $vars['edit_links_array']) . '
' : '';
}
/**
* 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 alphanumeric characters 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-]+/', '-', $string));
// If the first character is not a-z, add 'id' in front.
if (!ctype_lower($string{0})) { // Don't use ctype_alpha since its locale aware.
$string = 'id' . $string;
}
return $string;
}
/**
* Returns the path to the Zen theme.
*
* drupal_get_filename() is broken; see #341140. When that is fixed in Drupal 6,
* replace _zen_path() with drupal_get_path('theme', 'zen').
*/
function _zen_path() {
static $path = FALSE;
if (!$path) {
$matches = drupal_system_listing('zen\.info$', 'themes', 'name', 0);
if (!empty($matches['zen']->filename)) {
$path = dirname($matches['zen']->filename);
}
}
return $path;
}