Add suggest menu for task ID

app/Controller/TaskAjaxController.php

@@ -5,8 +5,12 @@ namespace Kanboard\Controller;
 use Kanboard\Filter\TaskIdExclusionFilter;
 use Kanboard\Filter\TaskIdFilter;
 use Kanboard\Filter\TaskProjectsFilter;
+use Kanboard\Filter\TaskStartsWithIdFilter;
+use Kanboard\Filter\TaskStatusFilter;
 use Kanboard\Filter\TaskTitleFilter;
 use Kanboard\Formatter\TaskAutoCompleteFormatter;
+use Kanboard\Formatter\TaskSuggestMenuFormatter;
+use Kanboard\Model\TaskModel;
 
 /**
  * Task Ajax Controller
@@ -19,7 +23,6 @@ class TaskAjaxController extends BaseController
     /**
      * Task auto-completion (Ajax)
      *
-     * @access public
      */
     public function autocomplete()
     {
@@ -46,4 +49,24 @@ class TaskAjaxController extends BaseController
             $this->response->json($filter->format(new TaskAutoCompleteFormatter($this->container)));
         }
     }
+
+    /**
+     * Task ID suggest menu
+     */
+    public function suggest()
+    {
+        $taskId = $this->request->getIntegerParam('search');
+        $projectIds = $this->projectPermissionModel->getActiveProjectIds($this->userSession->getId());
+
+        if (empty($projectIds)) {
+            $this->response->json(array());
+        } else {
+            $filter = $this->taskQuery
+                ->withFilter(new TaskProjectsFilter($projectIds))
+                ->withFilter(new TaskStatusFilter(TaskModel::STATUS_OPEN))
+                ->withFilter(new TaskStartsWithIdFilter($taskId));
+
+            $this->response->json($filter->format(new TaskSuggestMenuFormatter($this->container)));
+        }
+    }
 }