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theme.maintenance.inc
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Tim Steiner authoredTim Steiner authored
theme.maintenance.inc 6.90 KiB
<?php
/**
* @file
* Theming for maintenance pages.
*/
/**
* Sets up the theming system for maintenance page.
*
* Used for site installs, updates and when the site is in maintenance mode.
* It also applies when the database is unavailable or bootstrap was not
* complete. Seven is always used for the initial install and update
* operations. In other cases, Bartik is used, but this can be overridden by
* setting a "maintenance_theme" key in the $conf variable in settings.php.
*/
function _drupal_maintenance_theme() {
global $theme, $theme_key, $conf;
// If $theme is already set, assume the others are set too, and do nothing.
if (isset($theme)) {
return;
}
require_once DRUPAL_ROOT . '/' . variable_get('path_inc', 'includes/path.inc');
require_once DRUPAL_ROOT . '/includes/theme.inc';
require_once DRUPAL_ROOT . '/includes/common.inc';
require_once DRUPAL_ROOT . '/includes/unicode.inc';
require_once DRUPAL_ROOT . '/includes/file.inc';
require_once DRUPAL_ROOT . '/includes/module.inc';
unicode_check();
// Install and update pages are treated differently to prevent theming overrides.
if (defined('MAINTENANCE_MODE') && (MAINTENANCE_MODE == 'install' || MAINTENANCE_MODE == 'update')) {
$custom_theme = (isset($conf['maintenance_theme']) ? $conf['maintenance_theme'] : 'seven');
}
else {
// The bootstrap was not complete. So we are operating in a crippled
// environment, we need to bootstrap just enough to allow hook invocations
// to work. See _drupal_log_error().
if (!class_exists('Database', FALSE)) {
require_once DRUPAL_ROOT . '/includes/database/database.inc';
}
// We use the default theme as the maintenance theme. If a default theme
// isn't specified in the database or in settings.php, we use Bartik.
$custom_theme = variable_get('maintenance_theme', variable_get('theme_default', 'bartik'));
}
// Ensure that system.module is loaded.
if (!function_exists('_system_rebuild_theme_data')) {
$module_list['system']['filename'] = 'modules/system/system.module';
module_list(TRUE, FALSE, FALSE, $module_list);
drupal_load('module', 'system');
}
$themes = list_themes();
// list_themes() triggers a drupal_alter() in maintenance mode, but we can't
// let themes alter the .info data until we know a theme's base themes. So
// don't set global $theme until after list_themes() builds its cache.
$theme = $custom_theme;
// Store the identifier for retrieving theme settings with.
$theme_key = $theme;
// Find all our ancestor themes and put them in an array.
$base_theme = array();
$ancestor = $theme;
while ($ancestor && isset($themes[$ancestor]->base_theme)) {