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<?php
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/**
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* @file
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* Administration toolbar for quick access to top level administration items.
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*/
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/**
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* Implements hook_help().
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*/
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function toolbar_help($path, $arg) {
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switch ($path) {
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case 'admin/help#toolbar':
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$output = '<h3>' . t('About') . '</h3>';
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$output .= '<p>' . t('The Toolbar module displays links to top-level administration menu items and links from other modules at the top of the screen. For more information, see the online handbook entry for <a href="@toolbar">Toolbar module</a>.', array('@toolbar' => 'http://drupal.org/documentation/modules/toolbar/')) . '</p>';
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$output .= '<h3>' . t('Uses') . '</h3>';
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$output .= '<dl>';
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$output .= '<dt>' . t('Displaying administrative links') . '</dt>';
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$output .= '<dd>' . t('The Toolbar module displays a bar containing top-level administrative links across the top of the screen. Below that, the Toolbar module has a <em>drawer</em> section where it displays links provided by other modules, such as the core <a href="@shortcuts-help">Shortcut module</a>. The drawer can be hidden/shown by using the show/hide shortcuts link at the end of the toolbar.', array('@shortcuts-help' => url('admin/help/shortcut'))) . '</dd>';
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$output .= '</dl>';
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return $output;
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}
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}
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/**
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* Implements hook_permission().
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*/
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function toolbar_permission() {
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return array(
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'access toolbar' => array(
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'title' => t('Use the administration toolbar'),
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),
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);
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}
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/**
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* Implements hook_theme().
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*/
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function toolbar_theme($existing, $type, $theme, $path) {
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$items['toolbar'] = array(
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'render element' => 'toolbar',
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'template' => 'toolbar',
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'path' => drupal_get_path('module', 'toolbar'),
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);
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$items['toolbar_toggle'] = array(
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'variables' => array(
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'collapsed' => NULL,
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'attributes' => array(),
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),
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);
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return $items;
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}
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/**
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* Implements hook_menu().
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*/
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function toolbar_menu() {
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$items['toolbar/toggle'] = array(
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'title' => 'Toggle drawer visibility',
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'type' => MENU_CALLBACK,
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'page callback' => 'toolbar_toggle_page',
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'access arguments' => array('access toolbar'),
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);
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return $items;
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}
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/**
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* Menu callback; toggles the visibility of the toolbar drawer.
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*/
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function toolbar_toggle_page() {
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global $base_path;
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// Toggle the value in the cookie.
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setcookie('Drupal.toolbar.collapsed', !_toolbar_is_collapsed(), NULL, $base_path);
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// Redirect the user from where he used the toggle element.
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drupal_goto();
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}
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/**
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* Formats an element used to toggle the toolbar drawer's visibility.
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*
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* @param $variables
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* An associative array containing:
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* - collapsed: A boolean value representing the toolbar drawer's visibility.
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* - attributes: An associative array of HTML attributes.
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*
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* @return
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* An HTML string representing the element for toggling.
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*
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* @ingroup themable
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*/
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function theme_toolbar_toggle($variables) {
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if ($variables['collapsed']) {
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$toggle_text = t('Show shortcuts');
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}
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else {
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$toggle_text = t('Hide shortcuts');
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$variables['attributes']['class'][] = 'toggle-active';
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}
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return l($toggle_text, 'toolbar/toggle', array('query' => drupal_get_destination(), 'attributes' => array('title' => $toggle_text) + $variables['attributes']));
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}
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/**
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* Determines the current state of the toolbar drawer's visibility.
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*
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* @return
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* TRUE when drawer is collapsed, FALSE when it is expanded.
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*/
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function _toolbar_is_collapsed() {
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// PHP converts dots into underscores in cookie names to avoid problems with
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// its parser, so we use a converted cookie name.
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return isset($_COOKIE['Drupal_toolbar_collapsed']) ? $_COOKIE['Drupal_toolbar_collapsed'] : 0;
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}
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/**
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* Implements hook_page_build().
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*
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* Add admin toolbar to the page_top region automatically.
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*/
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function toolbar_page_build(&$page) {
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$page['page_top']['toolbar'] = array(
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'#pre_render' => array('toolbar_pre_render'),
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'#access' => user_access('access toolbar'),
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'toolbar_drawer' => array(),
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);
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}
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/**
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* Prerender function for the toolbar.
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*
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* Since building the toolbar takes some time, it is done just prior to
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* rendering to ensure that it is built only if it will be displayed.
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*/
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function toolbar_pre_render($toolbar) {
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$toolbar = array_merge($toolbar, toolbar_view());
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return $toolbar;
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}
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/**
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* Implements hook_preprocess_html().
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*
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* Add some page classes, so global page theming can adjust to the toolbar.
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*/
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function toolbar_preprocess_html(&$vars) {
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if (isset($vars['page']['page_top']['toolbar']) && user_access('access toolbar')) {
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$vars['classes_array'][] = 'toolbar';
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if (!_toolbar_is_collapsed()) {
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$vars['classes_array'][] = 'toolbar-drawer';
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}
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}
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}
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/**
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* Implements hook_preprocess_toolbar().
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*
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* Adding the 'overlay-displace-top' class to the toolbar pushes the overlay
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* down, so it appears below the toolbar.
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*/
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function toolbar_preprocess_toolbar(&$variables) {
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$variables['classes_array'][] = "overlay-displace-top";
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}
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/**
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* Implements hook_system_info_alter().
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*
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* Indicate that the 'page_top' region (in which the toolbar will be displayed)
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* is an overlay supplemental region that should be refreshed whenever its
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* content is updated.
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*
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* This information is provided for any module that might need to use it, not
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* just the core Overlay module.
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*/
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function toolbar_system_info_alter(&$info, $file, $type) {
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if ($type == 'theme') {
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$info['overlay_supplemental_regions'][] = 'page_top';
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}
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}
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/**
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* Builds the admin menu as a structured array ready for drupal_render().
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*
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* @return
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* Array of links and settings relating to the admin menu.
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*/
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function toolbar_view() {
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global $user;
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$module_path = drupal_get_path('module', 'toolbar');
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$build = array(
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'#theme' => 'toolbar',
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'#attached'=> array(
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'js' => array(
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$module_path . '/toolbar.js',
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array(
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'data' => array('tableHeaderOffset' => 'Drupal.toolbar.height'),
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'type' => 'setting'
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),
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),
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'css' => array(
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$module_path . '/toolbar.css',
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),
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'library' => array(array('system', 'jquery.cookie')),
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),
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);
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// Retrieve the admin menu from the database.
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$links = toolbar_menu_navigation_links(toolbar_get_menu_tree());
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$build['toolbar_menu'] = array(
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'#theme' => 'links__toolbar_menu',
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'#links' => $links,
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'#attributes' => array('id' => 'toolbar-menu'),
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'#heading' => array('text' => t('Administrative toolbar'), 'level' => 'h2', 'class' => 'element-invisible'),
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);
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// Add logout & user account links or login link.
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if ($user->uid) {
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$links = array(
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'account' => array(
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'title' => t('Hello <strong>@username</strong>', array('@username' => format_username($user))),
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'href' => 'user',
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'html' => TRUE,
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'attributes' => array('title' => t('User account')),
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),
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'logout' => array(
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'title' => t('Log out'),
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'href' => 'user/logout',
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),
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);
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}
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else {
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$links = array(
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'login' => array(
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'title' => t('Log in'),
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'href' => 'user',
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),
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);
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}
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$build['toolbar_user'] = array(
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'#theme' => 'links__toolbar_user',
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'#links' => $links,
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'#attributes' => array('id' => 'toolbar-user'),
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);
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// Add a "home" link.
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$link = array(
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'home' => array(
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'title' => '<span class="home-link">Home</span>',
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'href' => '<front>',
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'html' => TRUE,
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'attributes' => array('title' => t('Home')),
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),
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);
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$build['toolbar_home'] = array(
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'#theme' => 'links',
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'#links' => $link,
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'#attributes' => array('id' => 'toolbar-home'),
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);
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// Add an anchor to be able to toggle the visibility of the drawer.
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$build['toolbar_toggle'] = array(
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'#theme' => 'toolbar_toggle',
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'#collapsed' => _toolbar_is_collapsed(),
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'#attributes' => array('class' => array('toggle')),
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);
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// Prepare the drawer links CSS classes.
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$toolbar_drawer_classes = array(
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'toolbar-drawer',
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'clearfix',
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);
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if(_toolbar_is_collapsed()) {
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$toolbar_drawer_classes[] = 'collapsed';
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}
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$build['toolbar_drawer_classes'] = implode(' ', $toolbar_drawer_classes);
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return $build;
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}
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/**
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* Gets only the top level items below the 'admin' path.
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*
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* @return
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* An array containing a menu tree of top level items below the 'admin' path.
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*/
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function toolbar_get_menu_tree() {
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$tree = array();
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$admin_link = db_query('SELECT * FROM {menu_links} WHERE menu_name = :menu_name AND module = :module AND link_path = :path', array(':menu_name' => 'management', ':module' => 'system', ':path' => 'admin'))->fetchAssoc();
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if ($admin_link) {
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$tree = menu_build_tree('management', array(
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'expanded' => array($admin_link['mlid']),
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'min_depth' => $admin_link['depth'] + 1,
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'max_depth' => $admin_link['depth'] + 1,
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));
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}
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return $tree;
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}
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298
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/**
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* Generates a links array from a menu tree array.
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300
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*
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* Based on menu_navigation_links(). Adds path based IDs and icon placeholders
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* to the links.
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*
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* @return
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* An array of links as defined above.
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*/
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function toolbar_menu_navigation_links($tree) {
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$links = array();
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foreach ($tree as $item) {
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if (!$item['link']['hidden'] && $item['link']['access']) {
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// Make sure we have a path specific ID in place, so we can attach icons
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// and behaviors to the items.
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$id = str_replace(array('/', '<', '>'), array('-', '', ''), $item['link']['href']);
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$link = $item['link']['localized_options'];
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$link['href'] = $item['link']['href'];
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// Add icon placeholder.
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$link['title'] = '<span class="icon"></span>' . check_plain($item['link']['title']);
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// Add admin link ID.
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$link['attributes'] = array('id' => 'toolbar-link-' . $id);
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if (!empty($item['link']['description'])) {
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$link['title'] .= ' <span class="element-invisible">(' . $item['link']['description'] . ')</span>';
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$link['attributes']['title'] = $item['link']['description'];
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}
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$link['html'] = TRUE;
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$class = ' path-' . $id;
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if (toolbar_in_active_trail($item['link']['href'])) {
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$class .= ' active-trail';
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}
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$links['menu-' . $item['link']['mlid'] . $class] = $link;
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}
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}
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return $links;
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}
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337
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/**
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* Checks whether an item is in the active trail.
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*
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340
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* Useful when using a menu generated by menu_tree_all_data() which does
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341
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* not set the 'in_active_trail' flag on items.
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*
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* @return
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344
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* TRUE when path is in the active trail, FALSE if not.
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345
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*
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346
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* @todo
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347
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* Look at migrating to a menu system level function.
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348
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*/
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function toolbar_in_active_trail($path) {
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$active_paths = &drupal_static(__FUNCTION__);
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// Gather active paths.
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if (!isset($active_paths)) {
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$active_paths = array();
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$trail = menu_get_active_trail();
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foreach ($trail as $item) {
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if (!empty($item['href'])) {
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$active_paths[] = $item['href'];
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}
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}
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}
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return in_array($path, $active_paths);
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363
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}
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