Add no data display message to entities and alarm tables

ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.html

@@ -136,7 +136,7 @@
       </table>
       <span [fxShow]="(alarmsDatasource.isEmpty() | async) && !alarmsDatasource.dataLoading"
             fxLayoutAlign="center center"
-            class="no-data-found" translate>alarm.no-alarms-prompt</span>
+            class="no-data-found">{{ noDataDisplayMessageText }}</span>
       <span [fxShow]="alarmsDatasource.dataLoading"
             fxLayoutAlign="center center"
             class="no-data-found">{{ 'common.loading' | translate }}</span>

ui-ngx/src/app/modules/home/components/widget/lib/alarms-table-widget.component.ts

@@ -39,7 +39,7 @@ import {
   createLabelFromDatasource,
   deepClone,
   hashCode,
-  isDefined,
+  isDefined, isNotEmptyStr,
   isNumber,
   isObject,
   isUndefined
@@ -265,6 +265,11 @@ export class AlarmsTableWidgetComponent extends PageComponent implements OnInit,
     }
   }
 
+  get noDataDisplayMessageText() {
+    const noDataDisplayMessage = isNotEmptyStr(this.ctx.widgetConfig.noDataDisplayMessage) ? this.ctx.widgetConfig.noDataDisplayMessage : '{i18n:alarm.no-alarms-prompt}';
+    return this.utils.customTranslation(noDataDisplayMessage, noDataDisplayMessage);
+  }
+
   ngAfterViewInit(): void {
     fromEvent(this.searchInputField.nativeElement, 'keyup')
       .pipe(

ui-ngx/src/app/modules/home/components/widget/lib/entities-table-widget.component.html

@@ -95,7 +95,7 @@
       </table>
       <span [fxShow]="(entityDatasource.isEmpty() | async) && !entityDatasource.dataLoading"
             fxLayoutAlign="center center"
-            class="no-data-found" translate>entity.no-entities-prompt</span>
+            class="no-data-found">{{ noDataDisplayMessageText }}</span>
       <span [fxShow]="entityDatasource.dataLoading"
             fxLayoutAlign="center center"
             class="no-data-found">{{ 'common.loading' | translate }}</span>

ui-ngx/src/app/modules/home/components/widget/lib/entities-table-widget.component.ts

@@ -44,7 +44,7 @@ import {
   createLabelFromDatasource,
   deepClone,
   hashCode,
-  isDefined,
+  isDefined, isNotEmptyStr,
   isNumber,
   isObject,
   isUndefined
@@ -211,6 +211,11 @@ export class EntitiesTableWidgetComponent extends PageComponent implements OnIni
     this.ctx.updateWidgetParams();
   }
 
+  get noDataDisplayMessageText() {
+    const noDataDisplayMessage = isNotEmptyStr(this.ctx.widgetConfig.noDataDisplayMessage) ? this.ctx.widgetConfig.noDataDisplayMessage : '{i18n:entity.no-entities-prompt}';
+    return this.utils.customTranslation(noDataDisplayMessage, noDataDisplayMessage);
+  }
+
   ngAfterViewInit(): void {
     fromEvent(this.searchInputField.nativeElement, 'keyup')
       .pipe(