Scheduler: refactoring _activeStateUnit (#30982)

Author: pharret31

packages/devextreme/js/__internal/core/widget/widget.ts

@@ -31,7 +31,7 @@ export const FOCUSED_STATE_CLASS = 'dx-state-focused';
 export const HOVER_STATE_CLASS = 'dx-state-hover';
 const INVISIBLE_STATE_CLASS = 'dx-state-invisible';
 
-const EMPTY_ACTIVE_STATE_UNIT = '';
+export const EMPTY_ACTIVE_STATE_UNIT = '';
 const DEFAULT_FEEDBACK_HIDE_TIMEOUT = 400;
 const DEFAULT_FEEDBACK_SHOW_TIMEOUT = 30;
 

packages/devextreme/js/__internal/scheduler/workspaces/m_agenda.ts

@@ -8,6 +8,7 @@ import dateUtils from '@js/core/utils/date';
 import { extend } from '@js/core/utils/extend';
 import { each } from '@js/core/utils/iterator';
 import { setHeight, setOuterHeight } from '@js/core/utils/size';
+import { EMPTY_ACTIVE_STATE_UNIT } from '@ts/core/widget/widget';
 
 import {
   DATE_TABLE_CLASS,
@@ -49,7 +50,7 @@ class SchedulerAgenda extends WorkSpace {
 
   // eslint-disable-next-line class-methods-use-this
   protected _activeStateUnit(): string {
-    return '';
+    return EMPTY_ACTIVE_STATE_UNIT;
   }
 
   get type() { return VIEWS.AGENDA; }