function template_preprocess_html

Preprocess variables for html.tpl.php

See also

system_elements()

html.tpl.php

File

includes/theme.inc, line 2584

Code

function template_preprocess_html(&$variables) {
    // Compile a list of classes that are going to be applied to the body element.
    // This allows advanced theming based on context (home page, node of certain type, etc.).
    // Add a class that tells us whether we're on the front page or not.
    $variables['classes_array'][] = $variables['is_front'] ? 'front' : 'not-front';
    // Add a class that tells us whether the page is viewed by an authenticated user or not.
    $variables['classes_array'][] = $variables['logged_in'] ? 'logged-in' : 'not-logged-in';
    // Add information about the number of sidebars.
    if (!empty($variables['page']['sidebar_first']) && !empty($variables['page']['sidebar_second'])) {
        $variables['classes_array'][] = 'two-sidebars';
    }
    elseif (!empty($variables['page']['sidebar_first'])) {
        $variables['classes_array'][] = 'one-sidebar sidebar-first';
    }
    elseif (!empty($variables['page']['sidebar_second'])) {
        $variables['classes_array'][] = 'one-sidebar sidebar-second';
    }
    else {
        $variables['classes_array'][] = 'no-sidebars';
    }
    // Populate the body classes.
    if ($suggestions = theme_get_suggestions(arg(), 'page', '-')) {
        foreach ($suggestions as $suggestion) {
            if ($suggestion != 'page-front') {
                // Add current suggestion to page classes to make it possible to theme
                // the page depending on the current page type (e.g. node, admin, user,
                // etc.) as well as more specific data like node-12 or node-edit.
                $variables['classes_array'][] = drupal_html_class($suggestion);
            }
        }
    }
    // If on an individual node page, add the node type to body classes.
    if ($node = menu_get_object()) {
        $variables['classes_array'][] = drupal_html_class('node-type-' . $node->type);
    }
    // RDFa allows annotation of XHTML pages with RDF data, while GRDDL provides
    // mechanisms for extraction of this RDF content via XSLT transformation
    // using an associated GRDDL profile.
    $variables['rdf_namespaces'] = drupal_get_rdf_namespaces();
    $variables['grddl_profile'] = 'http://www.w3.org/1999/xhtml/vocab';
    $variables['language'] = $GLOBALS['language'];
    $variables['language']->dir = $GLOBALS['language']->direction ? 'rtl' : 'ltr';
    // Add favicon.
    if (theme_get_setting('toggle_favicon')) {
        $favicon = theme_get_setting('favicon');
        $type = theme_get_setting('favicon_mimetype');
        drupal_add_html_head_link(array(
            'rel' => 'shortcut icon',
            'href' => drupal_strip_dangerous_protocols($favicon),
            'type' => $type,
        ));
    }
    // Construct page title.
    if (drupal_get_title()) {
        $head_title = array(
            'title' => strip_tags(drupal_get_title()),
            'name' => check_plain(variable_get('site_name', 'Drupal')),
        );
    }
    else {
        $head_title = array(
            'name' => check_plain(variable_get('site_name', 'Drupal')),
        );
        if (variable_get('site_slogan', '')) {
            $head_title['slogan'] = filter_xss_admin(variable_get('site_slogan', ''));
        }
    }
    $variables['head_title_array'] = $head_title;
    $variables['head_title'] = implode(' | ', $head_title);
    // Populate the page template suggestions.
    if ($suggestions = theme_get_suggestions(arg(), 'html')) {
        $variables['theme_hook_suggestions'] = $suggestions;
    }
}