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<?php
// $Id$
/**
* @file
* Administration toolbar for quick access to top level administration items.
*/
/**
* Implementation of hook_permission().
*/
function toolbar_permission() {
return array(
'access toolbar' => array(
'title' => t('Access administration toolbar'),
'description' => t('Access the persistent administration toolbar displayed on all pages.'),
),
);
}
/**
* Implement hook_theme().
*/
function toolbar_theme($existing, $type, $theme, $path) {
$items['toolbar'] = array(
'render element' => 'toolbar',
'template' => 'toolbar',
'path' => drupal_get_path('module', 'toolbar'),
);
return $items;
}
/**
* Implement hook_page_build().
*
* Add admin toolbar to the page_top region automatically.
*/
function toolbar_page_build(&$page) {
$page['page_top']['toolbar'] = array(
'#pre_render' => array('toolbar_pre_render'),
'#access' => user_access('access toolbar'),
'toolbar_drawer' => isset($page['toolbar_drawer']) ? $page['toolbar_drawer'] : array(),
);
}
/**
* Prerender function for the toolbar.
*
* Since building the toolbar takes some time, it is done just prior to
* rendering to ensure that it is built only if it will be displayed.
*/
function toolbar_pre_render($toolbar) {
$toolbar = array_merge($toolbar, toolbar_build());
return $toolbar;
}
/**
* Implement hook_preprocess_html().
*
* Add some page classes, so global page theming can adjust to the toolbar.
*/
function toolbar_preprocess_html(&$vars) {
if (user_access('access toolbar')) {
$vars['classes_array'][] = 'toolbar toolbar-drawer';
}
}
/**
* Build the admin menu as a structured array ready for drupal_render().
*/
function toolbar_build() {
global $user;
$module_path = drupal_get_path('module', 'toolbar');
$build = array(
'#theme' => 'toolbar',
'#attached'=> array(
'js' => array(
$module_path . '/toolbar.js',
array('data' => 'misc/jquery.cookie.js', 'weight' => JS_LIBRARY + 2),
array(
'data' => array('tableHeaderOffset' => 'Drupal.admin.toolbar.height'),
'type' => 'setting'
),
),
'css' => array(
$module_path . '/toolbar.css',
),
),
);
// Retrieve the admin menu from the database.
$links = toolbar_menu_navigation_links(toolbar_get_menu_tree());
$build['toolbar_menu'] = array(
'#theme' => 'links',
'#links' => $links,
'#attributes' => array('id' => 'toolbar-menu'),
);
// Add logout & user account links or login link
if ($user->uid) {
$links = array(
'account' => array(
'title' => t('Hello <strong>@username</strong>', array('@username' => format_username($user))),
'href' => 'user',
'html' => TRUE,
),
'logout' => array(
'title' => t('Log out'),
'href' => 'user/logout',
),
);
}
else {
$links = array(
'login' => array(
'title' => t('Log in'),
'href' => 'user',
),
);
}
$build['toolbar_user'] = array(
'#theme' => 'links',
'#links' => $links,
'#attributes' => array('id' => 'toolbar-user'),
);
return $build;
}
/**
* Get only the top level items below the 'admin' path.
*/
function toolbar_get_menu_tree() {
$tree = array();
$admin_link = db_query("SELECT * FROM {menu_links} WHERE menu_name = 'management' AND module = 'system' AND link_path = 'admin'")->fetchAssoc();
if ($admin_link) {
// @todo Use a function like book_menu_subtree_data().
$tree = menu_tree_all_data('management', $admin_link, $admin_link['depth'] + 1);
// The tree will be a sub-tree with the admin link as a single root item.
// @todo It is wrong to assume it's the last.
$admin_link = array_pop($tree);
$tree = $admin_link['below'] ? $admin_link['below'] : array();
}
return $tree;
}
/**
* Generate a links array from a menu tree array.
*
* Based on menu_navigation_links(). Adds in path based IDs, icon placeholders
* and overlay classes for the links.
*/
function toolbar_menu_navigation_links($tree) {
$links = array();
foreach ($tree as $item) {
if (!$item['link']['hidden'] && $item['link']['access']) {
$class = '';
// Make sure we have a path specific ID in place, so we can attach icons
// and behaviors to the items.
$id = str_replace(array('/', '<', '>'), array('-', '', ''), $item['link']['href']);
$link = $item['link']['localized_options'];
$link['href'] = $item['link']['href'];
// Add icon placeholder.
$link['title'] = '<span class="icon"></span>' . $item['link']['title'];
// Add admin link ID and to-overlay class for the overlay.
$link['attributes'] = array('id' => 'toolbar-link-' . $id, 'class' => array('to-overlay'));
$link['html'] = TRUE;
$class = ' path-' . $id;
if (toolbar_in_active_trail($item['link']['href'])) {
$class .= ' active-trail';
}
$links['menu-' . $item['link']['mlid'] . $class] = $link;
}
}
return $links;
}
/**
* Checks whether an item is in the active trail.
*
* Useful when using a menu generated by menu_tree_all_data() which does
* not set the 'in_active_trail' flag on items.
*
* @todo
* Look at migrating to a menu system level function.
*/
function toolbar_in_active_trail($path) {
$active_paths = &drupal_static(__FUNCTION__);
// Gather active paths.
if (!isset($active_paths)) {
$active_paths = array();
$trail = menu_get_active_trail();
foreach ($trail as $item) {
if (!empty($item['href'])) {
$active_paths[] = $item['href'];
}
}
}
return in_array($path, $active_paths);
}
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