Implement warning on close unsaved view

src-ui/src/app/components/common/confirm-dialog/confirm-dialog.component.html

@@ -16,4 +16,7 @@
         <ngb-progressbar *ngIf="!confirmButtonEnabled" style="height: 1px;" type="dark" [max]="secondsTotal" [value]="seconds"></ngb-progressbar>
         <span class="visually-hidden">{{ seconds | number: '1.0-0' }} seconds</span>
       </button>
+      <button *ngIf="alternativeBtnCaption" type="button" class="btn" [class]="alternativeBtnClass" (click)="alternative()" [disabled]="!alternativeButtonEnabled || !buttonsEnabled">
+        {{alternativeBtnCaption}}
+      </button>
     </div>

src-ui/src/app/components/common/confirm-dialog/confirm-dialog.component.ts

@@ -13,6 +13,9 @@ export class ConfirmDialogComponent {
   @Output()
   public confirmClicked = new EventEmitter()
 
+  @Output()
+  public alternativeClicked = new EventEmitter()
+
   @Input()
   title = $localize`Confirmation`
 
@@ -28,14 +31,22 @@ export class ConfirmDialogComponent {
   @Input()
   btnCaption = $localize`Confirm`
 
+  @Input()
+  alternativeBtnClass = 'btn-secondary'
+
+  @Input()
+  alternativeBtnCaption
+
   @Input()
   buttonsEnabled = true
 
   confirmButtonEnabled = true
+  alternativeButtonEnabled = true
   seconds = 0
   secondsTotal = 0
 
   confirmSubject: Subject<boolean>
+  alternativeSubject: Subject<boolean>
 
   delayConfirm(seconds: number) {
     const refreshInterval = 0.15 // s
@@ -68,4 +79,10 @@ export class ConfirmDialogComponent {
     this.confirmSubject?.next(true)
     this.confirmSubject?.complete()
   }
+
+  alternative() {
+    this.alternativeClicked.emit()
+    this.alternativeSubject?.next(true)
+    this.alternativeSubject?.complete()
+  }
 }

src-ui/src/app/components/document-list/document-list.component.html

@@ -60,7 +60,12 @@
   </div>
 
   <div class="btn-group ms-2 flex-fill" ngbDropdown role="group">
-    <button class="btn btn-sm btn-outline-primary dropdown-toggle flex-fill" tourAnchor="tour.documents-views" ngbDropdownToggle i18n>Views</button>
+    <button class="btn btn-sm btn-outline-primary dropdown-toggle flex-fill" tourAnchor="tour.documents-views" ngbDropdownToggle>
+      <ng-container i18n>Views</ng-container>
+      <div *ngIf="savedViewIsModified" class="position-absolute top-0 start-100 p-2 translate-middle badge bg-secondary border border-light rounded-circle">
+        <span class="visually-hidden">selected</span>
+      </div>
+    </button>
     <div class="dropdown-menu shadow dropdown-menu-right" ngbDropdownMenu>
       <ng-container *ngIf="!list.activeSavedViewId">
         <button ngbDropdownItem *ngFor="let view of savedViewService.allViews" (click)="loadViewConfig(view.id)">{{view.name}}</button>