add admin_toolbar & admin_toolbar_tools

admin_toolbar.info

+name = Admin toolbar

admin_toolbar.libraries.yml

+toolbar.tree:
+  version: VERSION
+  css:
+    theme:
+      css/admin.toolbar.css: {}
\ No newline at end of file

admin_toolbar.module

+<?php
+
+/**
+ *  Implements hook_toolbar().
+ */
+function admin_toolbar_toolbar() {
+  $items = array();
+  $items['admin_toolbar'] = array(
+    '#type' => 'toolbar_item',
+    '#attached' => array(
+      'library' => array(
+        'admin_toolbar/toolbar.tree',
+      ),
+    ),
+  );
+  return $items;
+}
+/**
+ *  Implements hook_toolbar_alter().
+ */
+function admin_toolbar_toolbar_alter(&$items) {
+  // To conserve bandwidth, we only include the top-level links in the HTML.
+  // The subtrees are fetched through a JSONP script that is generated at the
+  // toolbar_subtrees route. We provide the JavaScript requesting that JSONP
+  // script here with the hash parameter that is needed for that route.
+  // @see toolbar_subtrees_jsonp()
+  $langcode = \Drupal::languageManager()->getCurrentLanguage()->getId();
+  $subtrees_attached['drupalSettings']['toolbar'] = [
+    'subtreesHash' => admin_toolbar_get_subtrees_hash($langcode),
+    'langcode' => $langcode,
+  ];
+  // a toolbar tray. The tray contains the full administrative menu of the site.
+  $items['administration'] = array(
+    '#type' => 'toolbar_item',
+    'tab' => array(
+      '#type' => 'link',
+      '#title' => t('Manage'),
+      '#url' => \Drupal\Core\Url::fromRoute('system.admin'),
+      '#attributes' => array(
+        'title' => t('Admin menu'),
+        'class' => array('toolbar-icon', 'toolbar-icon-menu'),
+        // A data attribute that indicates to the client to defer loading of
+        // the admin menu subtrees until this tab is activated. Admin menu
+        // subtrees will not render to the DOM if this attribute is removed.
+        // The value of the attribute is intentionally left blank. Only the
+        // presence of the attribute is necessary.
+        'data-drupal-subtrees' => '',
+      ),
+    ),
+    'tray' => array(
+      '#heading' => t('Administration menu'),
+      '#attached' => $subtrees_attached,
+      'toolbar_administration' => array(
+        '#pre_render' => array(
+          'toolbar_prerender_admin_toolbar_administration_tray',
+        ),
+        '#type' => 'container',
+        '#attributes' => array(
+          'class' => array('toolbar-menu-administration'),
+        ),
+      ),
+    ),
+    '#weight' => -15,
+  );
+  return $items;
+
+}
+/**
+ * Renders the toolbar's administration tray.
+ *
+ * @param array $element
+ *   A renderable array.
+ *
+ * @return array
+ *   The updated renderable array.
+ *
+ * @see drupal_render()
+ */
+function toolbar_prerender_admin_toolbar_administration_tray(array $element) {
+  $menu_tree = \Drupal::menuTree();
+  // Render the top-level administration menu links.
+  $parameters = new \Drupal\Core\Menu\MenuTreeParameters();
+  $parameters->setRoot('system.admin')->excludeRoot()->setMaxDepth(3);
+  $tree = $menu_tree->load(NULL, $parameters);
+  $manipulators = array(
+    array('callable' => 'menu.default_tree_manipulators:checkAccess'),
+    array('callable' => 'menu.default_tree_manipulators:generateIndexAndSort'),
+    array('callable' => 'toolbar_menu_navigation_links'),
+  );
+  $tree = $menu_tree->transform($tree, $manipulators);
+  $element['administration_menu'] = $menu_tree->build($tree);
+  return $element;
+}
+/**
+ * Returns the hash of the per-user rendered toolbar subtrees.
+ *
+ * @param string $langcode
+ *   The langcode of the current request.
+ *
+ * @return string
+ *   The hash of the admin_menu subtrees.
+ */
+function admin_toolbar_get_subtrees_hash($langcode) {
+  $uid = \Drupal::currentUser()->id();
+  $cid = _toolbar_get_user_cid($uid, $langcode);
+  $subtrees = toolbar_get_rendered_subtrees();
+  $hash = \Drupal\Component\Utility\Crypt::hashBase64(serialize($subtrees));
+  $role_list_cache_tags = \Drupal::entityManager()->getDefinition('user_role')->getListCacheTags();
+  \Drupal::cache('toolbar')->set($cid, $hash, \Drupal\Core\Cache\Cache::PERMANENT, \Drupal\Core\Cache\Cache::mergeTags(array('user:' . $uid, 'locale', 'config:system.menu.admin'), $role_list_cache_tags));
+  return $hash;
+}

admin_toolbar_tools/admin_toolbar_tools.info.yml

+name: Admin Toolbar Tools
+core: 8.x
+description: Admin Toolbar Tools lets to add more fonctionalities in the admin menu.
+package: Administration
+type: module
+version: 1.0
+dependencies:
+  - admin_toolbar
\ No newline at end of file

admin_toolbar_tools/admin_toolbar_tools.libraries.yml

+toolbar.icon:
+  version: VERSION
+  css:
+    theme:
+      css/tools.css: {}
\ No newline at end of file

admin_toolbar_tools/admin_toolbar_tools.links.menu.yml

+admin_toolbar_tools.help:
+  title: Tools
+  description: Admin toolbar tools
+  route_name: admin_toolbar_tools.help
+  weight: -15
+  parent: system.admin
+system.admin_index:
+  title: Index
+  description: Admin toolbar tools
+  weight: -10
+  route_name: system.admin_index
+  parent: admin_toolbar_tools.help
+admin_toolbar_tools.flush:
+  title: Flush all caches
+  route_name: admin_toolbar_tools.flush
+  weight: -9
+  parent: admin_toolbar_tools.help
+admin_toolbar_tools.cssjs:
+  title: CSS and Javascript
+  route_name: admin_toolbar_tools.cssjs
+  parent: admin_toolbar_tools.flush
+admin_toolbar_tools.plugin:
+  title: Plugins
+  route_name: admin_toolbar_tools.plugin
+  parent: admin_toolbar_tools.flush
+admin_toolbar_tools.flush_static:
+  title: Static caches
+  route_name: admin_toolbar_tools.flush_static
+  parent: admin_toolbar_tools.flush
+system.run_cron:
+  title: Run cron
+  weight: -8
+  route_name: system.run_cron
+  parent: admin_toolbar_tools.help
+system.db_update:
+  title: Run Updates
+  weight: -7
+  route_name: system.db_update
+  parent: admin_toolbar_tools.help
+admin_toolbar_tools.drupalorg:
+  title: Drupal.org
+  weight: -6
+  route_name: admin_toolbar_tools.drupalorg
+  parent: admin_toolbar_tools.help
+admin_toolbar_tools.listchanges:
+  title: List changes D8
+  weight: -6
+  route_name: admin_toolbar_tools.listchanges
+  parent: admin_toolbar_tools.drupalorg
+admin_toolbar_tools.doc:
+  title: Documentation D8
+  weight: -5
+  route_name: admin_toolbar_tools.doc
+  parent: admin_toolbar_tools.drupalorg

admin_toolbar_tools/admin_toolbar_tools.module

+<?php
+
+use Drupal\Core\Routing\RouteMatchInterface;
+
+
+// add css and icon in toolbar
+/**
+ * Implements hook_toolbar().
+ */
+function admin_toolbar_tools_toolbar() {
+  $items = array();
+  $items['admin_toolbar_tools'] = array(
+    '#type' => 'toolbar_item',
+    '#attributes' => array(
+      'class' => array('toolbar-icon', 'toolbar-icon-admin-toolbar-tools-help'),
+    ),
+    '#attached' => array(
+      'library' => array(
+        'admin_toolbar_tools/toolbar.icon',
+      ),
+    ),
+  );
+  return $items;
+}
+
+/**
+ *  Implements hook_help().
+ */
+function admin_toolbar_tools_help($route_name, RouteMatchInterface $route_match) {
+  switch ($route_name) {
+    case 'help.page.admin_toolbar_tools':
+      $output = '';
+      $output .= '<h3>' . t('About') . '</h3>';
+      $output .= '<p>' . t('The Admin Toolbar Tools module allows you to to add more fonctionalities to the toolbar like flush caches, runnig cron.') . '</p>';
+      return $output;
+  }
+}
\ No newline at end of file

admin_toolbar_tools/admin_toolbar_tools.routing.yml

+admin_toolbar_tools.help:
+  path: '/admin/tools'
+  defaults:
+    _controller: '\Drupal\admin_toolbar_tools\Controller\ToolbarController::home'
+    _title: 'Toolbar tools'
+  requirements:
+    _permission: 'access administration pages'
+admin_toolbar_tools.flush:
+  path: '/admin/flush'
+  defaults:
+    _controller: '\Drupal\admin_toolbar_tools\Controller\ToolbarController::flushAll'
+    _title: 'Flush all caches'
+  requirements:
+    _permission: 'access administration pages'
+admin_toolbar_tools.cssjs:
+  path: '/admin/flush/cssjs'
+  defaults:
+    _controller: '\Drupal\admin_toolbar_tools\Controller\ToolbarController::flush_js_css'
+    _title: 'Flush Css and Javascript'
+  requirements:
+    _permission: 'access administration pages'
+admin_toolbar_tools.plugin:
+  path: '/admin/flush/plugin'
+  defaults:
+    _controller: '\Drupal\admin_toolbar_tools\Controller\ToolbarController::flush_plugins'
+    _title: 'Plugin'
+  requirements:
+    _permission: 'access administration pages'
+admin_toolbar_tools.flush_static:
+  path: '/admin/flush/static-caches'
+  defaults:
+    _controller: '\Drupal\admin_toolbar_tools\Controller\ToolbarController::flush_static'
+    _title: 'static caches'
+  requirements:
+    _permission: 'access administration pages'
+admin_toolbar_tools.drupalorg:
+  path: '/admin/drupal8'
+  defaults:
+    _controller: '\Drupal\admin_toolbar_tools\Controller\ToolbarController::drupal_org'
+    _title: 'Drupal'
+  requirements:
+    _permission: 'access administration pages'
+admin_toolbar_tools.listchanges:
+  path: '/admin/drupal/list-changes'
+  defaults:
+    _controller: '\Drupal\admin_toolbar_tools\Controller\ToolbarController::list_changes'
+    _title: 'List changes'
+  requirements:
+    _permission: 'access administration pages'
+admin_toolbar_tools.doc:
+  path: '/admin/drupal/documentation'
+  defaults:
+    _controller: '\Drupal\admin_toolbar_tools\Controller\ToolbarController::documentation'
+    _title: 'Documentation D8'
+  requirements:
+    _permission: 'access administration pages'
\ No newline at end of file

admin_toolbar_tools/css/tools.css

+.toolbar-icon-admin-toolbar-tools-help {
+    text-indent: -9999px;
+
+}
+
+.toolbar-icon-admin-toolbar-tools-help:before {
+    background-image: url(../misc/icons/ffffff/d8-item.svg);
+    padding-bottom: 0;
+    padding-left: 4px;
+    padding-right: 8px;
+    padding-top: 2px;
+}
+.toolbar-icon-admin-toolbar-tools-help:active:before,
+.toolbar-icon-admin-toolbar-tools-help.active:before {
+    background-image: url(../misc/icons/ffffff/d8-item.svg);
+}

admin_toolbar_tools/src/Controller/ToolbarController.php

+<?php
+/**
+ * @file
+ * Contains \Drupal\admin_toolbar_tools\Controller\ToolbarController.
+ *
+ */
+
+namespace Drupal\admin_toolbar_tools\Controller;
+
+//Use the necessary classes
+use Drupal\Core\Controller\ControllerBase;
+use Symfony\Component\HttpFoundation\RedirectResponse;
+
+
+/**
+ * Class ToolbarController
+ * @package Drupal\admin_toolbar_tools\Controller
+ */
+class ToolbarController extends ControllerBase {
+
+  //This function display the tools in the menu.
+  public function home() {
+    return new RedirectResponse('/');
+  }
+
+  //This function flush all caches.
+  public function flushAll() {
+    drupal_flush_all_caches();
+    drupal_set_message(t('All cache cleared.'));
+    return new RedirectResponse('/');
+  }
+
+  //This function flush css and javascript caches.
+  public function flush_js_css() {
+    \Drupal::state()
+      ->set('system.css_js_query_string', base_convert(REQUEST_TIME, 10, 36));
+    drupal_set_message(t('CSS and JavaScript cache cleared.'));
+    return new RedirectResponse('/');
+  }
+
+  //This function flush plugins caches.
+  public function flush_plugins() {
+    // Clear all plugin caches.
+    \Drupal::service('plugin.cache_clearer')->clearCachedDefinitions();
+    drupal_set_message(t('Plugin cache cleared.'));
+    return new RedirectResponse('/');
+  }
+
+  // Reset all static caches.
+  public function flush_static() {
+    drupal_static_reset();
+    drupal_set_message(t('All static caches cleared.'));
+    return new RedirectResponse('/');
+  }
+
+// this function allow to access in documentation via admin_toolbar module
+  public function drupal_org() {
+    $response = new RedirectResponse("https://www.drupal.org");
+    $response->send();
+    return $response;
+  }
+
+  // this function allow to access in documentation(list changes of the different versions of drupal core) via admin_toolbar module.
+  public function list_changes() {
+    $response = new RedirectResponse("https://www.drupal.org/list-changes");
+    $response->send();
+    return $response;
+  }
+
+  //this function allow to add
+  public function documentation() {
+    $response = new RedirectResponse("https://api.drupal.org/api/drupal/8");
+    $response->send();
+    return $response;
+  }
+
+}
\ No newline at end of file