SetStatusTitle: Bitrix method

      
<?php 
//  SetStatusTitle()
//  /dist/bitrix/modules/bizproc/classes/general/activity.php:350

    public function SetStatusTitle($title = '')
    {
        $rootActivity = $this->GetRootActivity();
        $stateService = $this->workflow->GetService("StateService");
        if ($rootActivity instanceof CBPStateMachineWorkflowActivity)
        {
            $arState = $stateService->GetWorkflowState($this->GetWorkflowInstanceId());

            $arActivities = $rootActivity->CollectNestedActivities();
            /** @var CBPActivity $activity */
            foreach ($arActivities as $activity)
                if ($activity->GetName() == $arState["STATE_NAME"])
                    break;

            $stateService->SetStateTitle(
                $this->GetWorkflowInstanceId(),
                $activity->Title.($title != '' ? ": ".$title : '')
            );
        }
        else
        {
            if ($title != '')
            {
                $stateService->SetStateTitle(
                    $this->GetWorkflowInstanceId(),
                    $title
                );
            }
        }
    }